/* roulang page: index */
:root{
--primary:#176E9E;
--primary-deep:#11567C;
--accent:#2A90BF;
--teal:#23B6A6;
--amber:#F6A94C;
--bg:#F4F8FB;
--bg-blue:#EAF3F8;
--white:#ffffff;
--text:#1E2F3B;
--text-body:#3C5361;
--text-secondary:#6B8494;
--muted:#97ACB8;
--border:rgba(23,110,158,.14);
--border-strong:rgba(23,110,158,.18);
--radius-card:20px;
--radius-box:16px;
--radius-control:12px;
--radius-tag:8px;
--shadow:0 8px 28px rgba(31,66,90,.06);
--shadow-hover:0 18px 42px rgba(23,77,101,.12);
--shadow-nav:0 6px 24px rgba(23,77,101,.08);
--transition:.25s ease;
}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text-body);
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
  line-height:1.75;
  font-size:16px;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{color:var(--text);font-weight:600;line-height:1.3;letter-spacing:.01em}
p,h2{text-wrap:balance}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:var(--primary);transition:color .2s ease}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid rgba(42,144,191,.5);outline-offset:2px;border-radius:6px}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media(max-width:767px){.container{padding-left:18px;padding-right:18px}}

/* 通用按钮
--------------------------------------------------*/
.btn-custom{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:16px;font-weight:500;border-radius:var(--radius-control);
  padding:12px 24px;border:1.6px solid transparent;transition:all .25s ease;
  min-height:48px;line-height:1.2;white-space:nowrap;text-align:center;
}
.btn-primary-soft{
  background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(23,110,158,.18);
}
.btn-primary-soft:hover,.btn-primary-soft:focus{
  background:var(--teal);color:#fff;border-color:transparent;
  box-shadow:0 14px 30px rgba(35,182,166,.25);transform:translateY(-2px);
}
.btn-outline-soft{
  background:transparent;border-color:rgba(23,110,158,.5);color:var(--primary);
}
.btn-outline-soft:hover{background:rgba(23,110,158,.08);color:var(--primary-deep);border-color:var(--primary)}
.btn-white-ghost{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.45);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.btn-white-ghost:hover{background:#ffffff;color:var(--primary-deep);border-color:#fff}
.link-arrow{
  color:var(--primary);font-weight:500;display:inline-flex;align-items:center;gap:6px;
  transition:gap .2s ease,color .2s ease;
}
.link-arrow i{transition:transform .2s ease;font-size:14px}
.link-arrow:hover{gap:9px;color:var(--accent)}
.link-arrow:hover i{transform:translateX(2px)}
.link-text{display:inline-flex;align-items:center;gap:7px;font-weight:500;color:var(--primary);transition:gap .25s}
.link-text:hover{gap:10px;color:var(--teal)}

/* 区块页眉
--------------------------------------------------*/
.section-kicker{
  font-size:14px;letter-spacing:.12em;font-weight:600;
  padding:6px 14px;background:var(--bg-blue);color:var(--primary);
  border-radius:999px;display:inline-flex;align-items:center;gap:6px;
}
.section-kicker.teal{background:rgba(35,182,166,.1);color:#128C7E}
.section-title{font-size:32px}
.section-desc{font-size:16px;color:var(--text-secondary)}
.section-head{
  display:flex;flex-direction:column;align-items:flex-start;gap:10px;
  margin-bottom:46px;
}
.section-line{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:20px;
}
.section-line .left{max-width:720px}

/* 导航
--------------------------------------------------*/
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:1080;
  background:rgba(255,255,255,.38);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.4);
  transition:all .3s ease;
}
.site-nav.is-scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:var(--shadow-nav);
  border-color:rgba(23,110,158,.08);
}
.nav-container{
  display:flex;align-items:center;justify-content:space-between;
  height:74px;gap:16px;
}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;min-width:max-content;
}
.brand-mark{
  width:38px;height:38px;border-radius:9px;
  background:linear-gradient(130deg,#176E9E 20%,#23B6A6);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;box-shadow:0 5px 14px rgba(23,110,158,.18);
}
.brand-name{
  font-size:18px;font-weight:600;color:var(--text);line-height:1.1;letter-spacing:.02em;
}
.brand-sub{font-size:12px;color:var(--text-secondary);font-weight:400;margin-top:1px}
.brand-name b{font-weight:700;color:var(--primary)}
.brand-sub i{font-style:normal;font-size:13px;font-weight:400;color:var(--teal);letter-spacing:.02em}

.nav-links{
  display:flex;align-items:center;gap:10px;margin:0;
}
.nav-links li{display:flex}
.nav-links li a{
  position:relative;font-weight:500;padding:8px 14px;color:var(--text);border-radius:10px;
  font-size:15px;transition:color .2s ease,background .2s ease;
}
.nav-links li a .short{display:none}
.nav-links li a i.nav-icon{margin-right:3px;font-size:13px}
.nav-links li a:hover{color:var(--primary);background:rgba(42,144,191,.06)}
.nav-links li a.active-link{color:var(--primary)}
.nav-links li a.active-link::after{
  content:'';position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:99px;background:var(--primary);
}
.header-cta{
  display:flex;align-items:center;gap:12px;
}
.search-icon{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;font-size:16px;color:var(--text-body);
  transition:.2s;border:1px solid transparent;cursor:pointer;
}
.search-icon:hover{background:var(--bg-blue);color:var(--primary)}
.header-cta .btn-custom{
  min-height:44px;padding:11px 20px;font-size:15px;
}
.mobile-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--border);cursor:pointer;
  border-radius:13px;background:rgba(255,255,255,.7);color:var(--text);
  font-size:19px;align-items:center;justify-content:center;
}

/* 移动导航
--------------------------------------------------*/
.mobile-col{
  position:fixed;top:74px;right:-94vw;bottom:0;width:88vw;max-width:420px;
  background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-left:1px solid rgba(23,110,158,.1);z-index:1090;
  box-shadow:-20px 0 40px rgba(23,77,101,.1);
  padding:34px 29px;transition:right .38s ease;
  display:flex;flex-direction:column;
}
.mobile-col.open{right:0}
.mobile-col a.close-mobile{
  position:absolute;top:17px;right:20px;width:36px;height:36px;color:var(--text);
  border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  background:var(--bg);border:1px solid var(--border);
}
.mobile-menu{margin-top:42px;display:flex;flex-direction:column;gap:4px;flex:1}
.mobile-menu a{
  display:flex;padding:15px 16px;border-radius:15px;font-size:17px;color:var(--text);
  font-weight:500;background:var(--white);border:1px solid transparent;
}
.mobile-menu a:hover{background:var(--bg-blue);color:var(--primary);border-color:var(--border)}
.mobile-menu a.active-mobile{
  background:var(--primary);color:#fff;border-color:var(--primary);
}
.mobile-menu a i{width:26px;font-size:15px;margin-top:3px}
.scrim{
  position:fixed;inset:0;background:rgba(30,47,59,.25);backdrop-filter:blur(3px);
  z-index:1030;opacity:0;visibility:hidden;transition:.3s;
}
.scrim.show{opacity:1;visibility:visible}
@media(max-width:1189px){
  .nav-links li a{font-size:14px;padding:8px 10px}
  .nav-links li a .long{display:none}
  .nav-links li a .short{display:inline}
  .header-cta .btn-custom span.text-only{display:none}
  .header-cta .btn-custom i{font-size:16px}
}
@media(max-width:991px){
  .site-nav{background:rgba(255,255,255,.75)}
  .desktop-links{display:none}
  .mobile-toggle{display:inline-flex}
  .nav-links{display:none}
  .header-cta .btn-custom{display:none}
  .mobile-col .header-cta{
    display:flex;justify-content:stretch;margin-top:auto;flex-direction:column;gap:12px;
  }
  .mobile-col .header-cta .btn-custom{width:100%;margin-left:0}
}
@media(max-width:767px){
  .site-nav .container{padding-left:16px;padding-right:16px}
  .nav-container{height:66px}
  .mobile-col{top:66px;padding-top:30px}
  .brand-sub span.nav-only-mobile{display:none}
}

/* HERO
--------------------------------------------------*/
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.webp') no-repeat center center/cover;
  padding-top:140px;padding-bottom:80px;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(17,55,81,.93) 0%,rgba(23,85,113,.82) 36%,rgba(23,94,131,.24) 74%,rgba(23,110,158,.02) 100%);
  z-index:1;
}
.hero::after{
  content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(16,44,64,.16),transparent 35%);
  z-index:1;
}
.hero .container{position:relative;z-index:3}
.hero-content{max-width:650px;color:#fff;padding:0 0 5px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 18px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  border-radius:999px;font-size:14px;color:#f3fbff;backdrop-filter:blur(8px);
  margin-bottom:28px;-webkit-backdrop-filter:blur(8px);
}
.hero-badge i{color:var(--amber);font-size:12px}
.hero h1{
  color:#fff;font-size:50px;font-weight:600;line-height:1.18;
  margin-bottom:20px;max-width:620px;letter-spacing:0;
}
.hero h1 .accent-text{
  background:linear-gradient(100deg,#EDFBFF,#7FD7EC 50%,#B8F0E8);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  padding-right:4px;
}
.hero-sub{
  font-size:18px;line-height:1.8;color:rgba(224,244,255,.9);
  margin-bottom:35px;max-width:560px;
}
.hero-bullets{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 24px;
  font-size:13px;color:rgba(220,242,255,.72);margin-top:30px;
  padding-left:2px;
}
.hero-bullets span{display:inline-flex;align-items:center;gap:6px}
.hero-bullets i{color:#6fe0b7;font-size:12px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-scroll{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:4;
  display:flex;flex-direction:column;align-items:center;color:#d4efff;opacity:.75;
  font-size:11px;letter-spacing:.18em;gap:5px;padding:2px 10px;
}
.hero-scroll .mouse-line{width:20px;height:28px;border-radius:11px;border:1px solid rgba(255,255,255,.7);display:flex;justify-content:center;padding:6px 0}
.hero-scroll .scroll-dot{width:3px;height:7px;border-radius:4px;background:#fff;animation:bounceDown 2.4s infinite}
@keyframes bounceDown{0%{transform:translateY(0);opacity:1}70%{transform:translateY(9px);opacity:.3}100%{opacity:0;transform:translateY(13px)}}
.hero-path{
  position:absolute;right:0;bottom:0;z-index:0;width:48%;
  height:100%;background:url('/assets/images/coverpic/cover-12.webp') no-repeat bottom right/cover;
  -webkit-mask-image:linear-gradient(-90deg,rgba(0,0,0,.5) 0%,transparent 58%);
          mask-image:linear-gradient(-90deg,rgba(0,0,0,.5) 0%,transparent 58%);
  opacity:.3;transform:scaleX(-1);
}
@media(max-width:991px){
  .hero{min-height:auto}
  .hero h1{font-size:40px}
  .hero-content{max-width:580px}
  .hero-path{opacity:.15}
}
@media(max-width:767px){
  .hero{padding-top:96px;padding-bottom:62px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px;margin-bottom:28px}
  .hero-cta .btn-custom{min-width:43%;flex:1;padding:12px 16px;font-size:15px}
  .hero-bullets{row-gap:8px}
}

/* 通用 section
--------------------------------------------------*/
.section-soft{padding:104px 0}
.section-footer-space{padding:94px 0}
.section-muted{padding:104px 0;background:#E9F0F5}
.section-deep{padding:90px 0;background:linear-gradient(120deg,#0E3A52,#12577A 55%,#16708B);position:relative;overflow:hidden;color:#fff}
.section-deep .section-title,.section-deep .section-kicker{color:#fff}
@media(max-width:767px){.section-soft,.section-muted{padding:58px 0}}

/* 分类卡 */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.entry-card{
  position:relative;background:#fff;border-radius:var(--radius-card);padding:30px 22px 32px;
  box-shadow:var(--shadow);border:1px solid var(--border);transition:all .3s ease;
  display:flex;flex-direction:column;min-height:296px;overflow:hidden;
}
.entry-card:nth-child(1){background:linear-gradient(145deg,#12577A,#176E9E 62%,#207CA8);border-color:transparent;box-shadow:0 20px 35px rgba(20,76,104,.17)}
.entry-card:nth-child(3){transform:translateY(14px)}
.entry-card:nth-child(4){transform:translateY(14px)}
.entry-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-8px)}
.entry-card:nth-child(1):hover{transform:translateY(-8px)}
.entry-card:hover .card-btn{color:var(--primary-deep)}
.entry-card:nth-child(1) .card-btn{color:#D3F0FF}
.entry-card:nth-child(1):hover .card-btn{color:#fff}
.category-icons{
  width:48px;height:48px;border-radius:14px;background:var(--bg-blue);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px;
}
.entry-card:nth-child(1) .category-icons{background:rgba(255,255,255,.17);color:#fff}
.entry-card:nth-child(2) .category-icons{color:var(--accent)}
.entry-card:nth-child(3) .category-icons{background:rgba(35,182,166,.12);color:#128C7E}
.entry-card:nth-child(4) .category-icons{background:rgba(246,169,76,.12);color:#CF7D1E}
.entry-card h3{font-size:19px;margin-bottom:11px}
.entry-card:nth-child(1) h3{color:#fff}
.entry-card p{font-size:14px;color:var(--text-secondary);flex:1;margin-bottom:18px}
.entry-card:nth-child(1) p{color:rgba(229,245,255,.84)}
.card-footerpath{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:12px;border-top:1px dashed rgba(23,110,158,.16);
}
.entry-card:nth-child(1) .card-footerpath{border-color:rgba(255,255,255,.19)}
.card-seq{
  font-weight:600;letter-spacing:.04em;font-size:12px;
  color:rgba(23,110,158,.48);font-family:'Inter',sans-serif;
}
.card-btn i{font-size:11px}
.entry-card .hover-toplight{position:absolute;top:18px;right:16px;font-size:12px;color:rgba(23,110,158,.22);font-weight:700}
@media(max-width:1199px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .entry-card:nth-child(3),.entry-card:nth-child(4){transform:translateY(0)}
  .entry-card:nth-child(3):hover,.entry-card:nth-child(4):hover{transform:translateY(-8px)}
}
@media(max-width:767px){
  .entry-grid{grid-template-columns:1fr;gap:18px}
  .entry-card{min-height:0;padding:26px 22px}
}

/* 数据条 */
.stats-plate{background:var(--primary);border-radius:26px;padding:40px 28px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;box-shadow:0 36px 70px rgba(23,87,122,.2);position:relative;z-index:1}
.stats-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 20px;
  border-right:1px solid rgba(255,255,255,.23);text-align:center;
}
.stats-item:last-child{border-right:0}
.stats-item strong{font-size:46px;font-weight:600;color:#fff;letter-spacing:-.01em;font-family:'Inter','PingFang SC',sans-serif;line-height:1.25}
.stats-item strong span{font-size:30px;font-weight:500}
.stats-item small{font-size:14px;color:rgba(235,248,255,.75);display:flex;align-items:center;gap:6px}
.stats-item small i{font-size:13px;color:#5ef1cf}
@media(max-width:991px){
  .stats-plate{grid-template-columns:repeat(2,1fr);gap:18px 0}
  .stats-item:nth-child(2){border-right:0}
  .stats-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.23);padding-bottom:26px}
  .stats-item:nth-child(3){padding-top:18px}
  .stats-item:nth-child(4){padding-top:18px}
}
@media(max-width:560px){
  .stats-item strong{font-size:38px}
  .stats-plate{padding:32px 22px}
}

/* 场景与图文 */
.scenario-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:start}
.scene-feature{
  background:#fff;border:1px solid var(--border);padding:20px 20px 24px;
  border-radius:var(--radius-card);box-shadow:var(--shadow);
}
.scene-feature .picture-wrap{
  border-radius:16px;overflow:hidden;height:244px;background:#D9E7EF;margin-bottom:18px;
}
.scene-feature .picture-wrap img{width:100%;height:100%;object-fit:cover}
.scene-feature h3{font-size:18px;margin-bottom:8px}
.scene-feature p{font-size:14px;margin-bottom:13px;color:var(--text-secondary)}
.scene-list{display:flex;flex-direction:column;gap:15px}
.scene-item{
  display:flex;gap:15px;align-items:flex-start;padding:17px 18px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-box);
  box-shadow:var(--shadow);transition:all .28s ease;margin:0;
}
.scene-item:hover{transform:translateX(5px);box-shadow:var(--shadow-hover)}
.scene-item .scene-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;background:var(--bg-blue);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  font-size:16px;
}
.scene-item:nth-child(2) .scene-icon{background:rgba(35,182,166,.1);color:#1BA791}
.scene-item:nth-child(3) .scene-icon{background:rgba(246,169,76,.12);color:#DF8B25}
.scene-item h4{font-size:16px;margin-bottom:5px}
.scene-item p{font-size:14px;margin-bottom:6px;color:var(--text-secondary)}
.scene-item .link-text{font-size:13px}
@media(max-width:1100px){
  .scenario-grid{grid-template-columns:1fr}
  .scene-list{flex-direction:row;flex-wrap:wrap}
  .scene-item{flex:1 1 calc(50% - 8px)}
}
@media(max-width:767px){
  .scene-list{flex-direction:column}
  .scene-item{flex:1 1 100%}
}

/* 步骤 */
.step-block{
  background:#fff;border-radius:22px;border:1px solid var(--border);padding:28px 24px;
  position:relative;box-shadow:var(--shadow);height:100%;
}
.step-block .step-num{
  font-family:'Inter',sans-serif;font-size:13px;background:var(--primary);
  color:#fff;border-radius:40px;padding:5px 13px;display:inline-flex;letter-spacing:.06em;
  box-shadow:0 6px 14px rgba(23,110,158,.14);margin-bottom:27px;
}
.step-block:nth-child(2) .step-num{background:var(--accent)}
.step-block:nth-child(3) .step-num{background:var(--teal)}
.step-block:nth-child(4) .step-num{background:rgba(246,169,76,.95)}
.step-icon{
  width:42px;height:42px;border-radius:13px;background:var(--bg-blue);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:18px;
}
.step-block h3{font-size:18px;margin-bottom:6px}
.step-block p{font-size:14px;color:var(--text-secondary);margin-bottom:0}
.step-connector{position:relative}
.step-connector::after{
  content:'';position:absolute;top:42px;right:-17px;bottom:auto;width:32px;border-top:2px dashed #9FD9CE;
}
@media(max-width:991px){
  .step-connector::after{display:none}
}
@media(max-width:767px){.step-r-wrap{gap:18px 0}}

/* 资讯最新动态 */
.news-wrap{
  display:grid;grid-template-columns:.88fr 1.42fr;gap:24px;align-items:stretch;
}
.article-lead{
  background:#fff;border:1px solid var(--border);border-radius:24px;
  padding:22px 22px 25px;flex-direction:column;box-shadow:var(--shadow);
}
.article-lead .img-card{height:245px;border-radius:18px;overflow:hidden;margin-bottom:18px}
.article-lead .img-card img{width:100%;height:100%;object-fit:cover}
.article-lead h3{font-size:21px;line-height:1.45;margin-bottom:12px}
.article-lead p{color:var(--text-secondary);font-size:14px;margin-bottom:12px}
.article-lead .badge.badge-soft{font-weight:500}
.news-feeds{
  background:#fff;border:1px solid var(--border);border-radius:24px;
  padding:28px;box-shadow:var(--shadow);
}
.feed-item{
  padding:18px 3px;border-bottom:1px solid var(--border);transition:.2s;
}
.feed-item:first-of-type{padding-top:5px}
.feed-item:last-child{border-bottom:0;padding-bottom:0}
.feed-item .feed-header{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.feed-item a.title{font-weight:600;font-size:16px;display:block;line-height:1.55;color:var(--text)}
.feed-item a.title:hover{color:var(--primary)}
.feed-item p{font-size:14px;margin:8px 0;color:var(--text-secondary)}
.feed-meta{display:flex;gap:5px 14px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:13px}
.feed-meta span{display:inline-flex;color:var(--muted)}
.feed-meta i{margin-right:4px}
.feed-link{font-size:13px}
.empty-lib{
  text-align:center;padding:38px 14px 38px;background:var(--bg-blue);
  border-radius:16px;margin-top:14px;min-height:180px;
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;
}
.empty-lib .empty-icon{
  width:48px;height:48px;border-radius:15px;background:rgba(42,144,191,.12);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;
}
.empty-lib p{margin:0;color:var(--text-secondary);font-size:15px}
@media(max-width:991px){
  .news-wrap{grid-template-columns:1fr}
  .article-lead .img-card{height:220px}
}
@media(max-width:767px){
  .news-feeds{padding:20px}
}

/* FAQ */
.faq-holder{
  display:grid;grid-template-columns:.84fr 1.16fr;gap:38px;align-items:flex-start;
}
.faq-side{position:sticky;top:140px}
.faq-side .help-card{
  background:linear-gradient(150deg,#EAF3F8,#EDF8FA);border:1px solid rgba(35,182,166,.16);
  border-radius:20px;padding:27px;margin-top:34px;
}
.help-card h4{font-size:18px;display:flex;gap:8px}
.help-card p{font-size:14px;margin:12px 0 18px;color:var(--text-secondary)}
.faq-group{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--border);border-radius:18px;background:#fff;padding:0;transition:all .3s ease;
}
.faq-item.open{border-left:4px solid var(--teal);box-shadow:var(--shadow-hover)}
.faq-question{
  width:100%;border:0;background:transparent;text-align:left;
  padding:21px 20px;font-size:17px;color:var(--text);font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  cursor:pointer;border-radius:18px;
}
.faq-question .faq-icon{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;display:flex;
  align-items:center;justify-content:center;background:var(--bg-blue);
  color:var(--primary);transition:.25s ease;
}
.faq-item.open .faq-question .faq-icon{background:var(--primary);color:#fff;transform:rotate(135deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 20px}
.faq-answer-content{color:var(--text-secondary);font-size:15px;line-height:1.85;padding-bottom:24px;opacity:0;transition:opacity .3s ease}
.faq-item.open .faq-answer-content{opacity:1}
@media(max-width:991px){
  .faq-holder{grid-template-columns:1fr}
  .faq-side{position:static}
  .faq-side .help-card{margin-top:22px}
}

/* CTA + form */
.cta-circle{
  background:linear-gradient(140deg,#12577A 0%,#176E9E 52%,#2183A8 100%);
  border-radius:28px;padding:62px 58px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 26px 48px rgba(23,77,101,.12);
}
.cta-circle::after{
  content:'';width:410px;height:410px;position:absolute;right:-135px;top:-150px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.14) 0%,transparent 70%);
}
.cta-circle .cta-left p{color:rgba(228,247,255,.8)}
.cta-circle form{background:rgba(255,255,255,.1);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.16);border-radius:24px;padding:30px;-webkit-backdrop-filter:blur(8px)}
.form-controls-modern{
  border:1.6px solid transparent;background:rgba(255,255,255,.95);color:#21333f;
  border-radius:12px;font-size:15px;padding:13px 16px;transition:.2s;
}
.form-controls-modern:focus{border-color:var(--teal);background:#fff;box-shadow:0 0 0 5px rgba(35,182,166,.16);outline:0}
.form-label{font-weight:500;color:#fff;font-size:14px}
.cta-action-meta{display:flex;gap:14px;align-items:center;margin-top:20px}
@media(max-width:767px){
  .cta-circle{padding:34px 24px}
  .cta-circle form{padding:21px}
}

/* breadcrumb 必要内页组件样式保持整站统一 */
.page-hero .breadcrumb-line a,.page-hero .breadcrumb-line span{color:rgba(222,242,255,.82);font-size:14px;margin-right:9px}
.page-hero .breadcrumb-line i{color:rgba(255,255,255,.36);font-size:11px;margin-right:9px}

/* Title footer */
.footer-title{font-size:17px;font-weight:600;margin-bottom:22px;color:#0f3550}

/* 页脚 */
.site-footer{background:#E9F0F5;padding:74px 0 0;border-top:1px solid rgba(23,110,158,.08)}
.footer-inner{
  display:grid;grid-template-columns:1fr .8fr 1fr 1fr;gap:28px;padding-bottom:48px;
}
.footer-brand p{font-size:14px;margin-top:11px;color:var(--text-secondary);max-width:300px}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:var(--text-secondary);font-size:14px;transition:.2s;display:inline-flex;align-items:center;gap:8px;
}
.footer-links a i{font-size:10px;color:var(--accent)}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-contact{color:var(--text-secondary);font-size:14px;display:flex;gap:10px;margin-bottom:13px}
.footer-contact i{color:var(--primary);margin-top:4px}
.footer-bottom{
  border-top:1px dashed rgba(23,110,158,.23);padding:25px 0 30px;
  font-size:13px;color:var(--text-secondary);display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;
}
.footer-bottom a{color:var(--text-secondary)}
.footer-bottom a:hover{color:var(--primary)}
@media(max-width:991px){
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .site-footer{padding-top:52px}
  .footer-inner{grid-template-columns:1fr}
  .footer-block{margin-bottom:8px}
  .footer-bottom{flex-direction:column}
}

.tag-soft{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-tag);
  font-weight:500;font-size:13px;
}
.tag-blue{background:var(--bg-blue);color:var(--primary)}
.tag-teal{background:rgba(35,182,166,.1);color:#1A9686}
.tag-amber{background:rgba(246,169,76,.15);color:#C47412}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .hero-scroll .scroll-dot{animation:none}
}

/* roulang page: article */
:root{
  --primary:#176E9E;
  --primary-deep:#0F5278;
  --accent:#2A90BF;
  --mint:#23B6A6;
  --amber:#F6A94C;
  --bg:#F4F8FB;
  --soft:#EAF3F8;
  --card-bg:#fff;
  --heading:#1E2F3B;
  --body:#3C5361;
  --muted:#6B8494;
  --faint:#97ACB8;
  --border:rgba(23,110,158,.14);
  --border-strong:rgba(23,110,158,.22);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-btn:12px;
  --radius-tag:8px;
  --shadow-sm:0 8px 28px rgba(31,66,90,.06);
  --shadow-hover:0 18px 42px rgba(23,77,101,.12);
  --nav-sh:0 6px 24px rgba(23,77,101,.08);
  --transition:all .25s ease;
}
html{scroll-behavior:smooth}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1220px;padding-left:24px;padding-right:24px}

.site-nav{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1080;
  background:rgba(20,50,68,.46);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-nav.scrolled{
  background:rgba(255,255,255,.9);
  border-bottom:1px solid rgba(23,110,158,.1);
  box-shadow:var(--nav-sh);
}
.nav-container{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  position:relative;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#176E9E 0%,#23B6A6 100%);
  color:#fff;
  font-size:20px;
  box-shadow:0 8px 18px rgba(23,110,158,.24);
}
.brand-name{
  color:#fff;
  font-size:20px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.2px;
  transition:color .3s;
}
.brand-name b{font-weight:600;color:var(--mint);margin-left:2px}
.brand-sub{
  display:block;
  font-size:11px;
  letter-spacing:1.6px;
  font-weight:400;
  color:rgba(255,255,255,.68);
  margin-top:2px;
  transition:color .3s;
}
.brand-sub i{font-style:normal}
.scrolled .brand-name{color:var(--heading)}
.scrolled .brand-name b{color:var(--primary)}
.scrolled .brand-sub{color:var(--muted)}

.desktop-nav{
  flex:1;
  max-width:calc(100% - 360px);
  display:flex;
  justify-content:center;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0;
  padding:0;
}
.nav-links li{position:relative}
.nav-links a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:10px 13px;
  color:rgba(255,255,255,.92);
  font-size:15px;
  border-radius:var(--radius-btn);
  position:relative;
  transition:color .2s,background .2s;
}
.nav-links a i.nav-icon{
  font-size:13px;
  color:inherit;
  opacity:.78;
}
.scrolled .nav-links a{color:#3C5361}
.nav-links a:hover,.nav-links a.active-link{
  color:#fff;
  background:rgba(255,255,255,.1);
}
.scrolled .nav-links a:hover,
.scrolled .nav-links a.active-link{
  color:var(--primary);
  background:rgba(23,110,158,.08);
}
.nav-links a:after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:16px;
  height:2px;
  border-radius:4px;
  transform:translateX(-50%) scaleX(0);
  background:linear-gradient(90deg,var(--primary),var(--mint));
  transition:transform .25s ease;
}
.nav-links a:hover:after,
.nav-links a.active-link:after{
  transform:translateX(-50%) scaleX(1);
}
.nav-links .short{display:none}
.header-cta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.1);
  color:#fff;
  font-size:15px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:var(--transition);
}
.site-nav.scrolled .search-icon{
  border-color:var(--border);
  background:var(--soft);
  color:var(--primary);
}
.search-icon:hover{background:var(--mint);border-color:var(--mint);color:#fff}
.btn-custom{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:7px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  padding:10px 20px;
  font-size:15px;
  font-weight:500;
  line-height:1.1;
  text-align:center;
  cursor:pointer;
  transition:var(--transition);
}
.btn-primary-soft{
  background:#fff;
  color:var(--primary-deep);
  border-color:#fff;
}
.site-nav.scrolled .btn-primary-soft{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.btn-primary-soft:hover{
  background:var(--mint);
  color:#fff;
  border-color:var(--mint);
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(35,182,166,.24);
}
.mobile-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:17px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:var(--transition);
}
.site-nav.scrolled .mobile-toggle{color:var(--primary);border-color:var(--border)}

.page-hero{
  position:relative;
  min-height:330px;
  display:flex;
  align-items:flex-end;
  color:#fff;
  padding:150px 0 80px;
  background:linear-gradient(102deg,rgba(10,38,56,.88) 0%,rgba(23,110,158,.72) 55%,rgba(35,182,166,.5) 100%),url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-hero:after{
  content:"";
  position:absolute;
  right:-120px;
  top:20px;
  width:420px;
  height:420px;
  background:radial-gradient(circle at center,rgba(255,255,255,.14),rgba(255,255,255,0) 66%);
  border-radius:50%;
  pointer-events:none;
}
.article-hero-inner{
  position:relative;
  z-index:2;
}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  font-size:13.5px;
  color:rgba(255,255,255,.78);
  margin-bottom:16px;
  letter-spacing:.2px;
}
.crumbs a{color:rgba(255,255,255,.8);transition:color .2s}
.crumbs a:hover{color:#fff}
.crumb-sep{
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--mint);
  display:inline-block;
  font-style:normal;
}
.article-hero-title{
  max-width:880px;
  margin:0;
  color:#fff;
  font-size:38px;
  font-weight:600;
  line-height:1.32;
  letter-spacing:.4px;
  text-shadow:0 2px 20px rgba(0,35,55,.18);
}
.article-hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 18px;
  margin-top:18px;
  font-size:14px;
  color:rgba(255,255,255,.8);
}
.article-hero-meta i{
  color:var(--mint);
  width:16px;
  margin-right:6px;
  font-size:13px;
}
.article-tag{
  display:inline-flex;
  align-items:center;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  padding:4px 14px;
  border-radius:var(--radius-tag);
  font-size:13px;
  font-weight:500;
}

.article-section-wrap{
  position:relative;
  padding:0 0 70px;
}
.article-card{
  background:#fff;
  border:1px solid rgba(23,110,158,.06);
  border-radius:22px;
  box-shadow:var(--shadow-sm);
  padding:48px;
  margin-top:-46px;
  position:relative;
  z-index:3;
}
.article-post-body{
  color:var(--body);
  font-size:17px;
  line-height:1.95;
  word-break:break-word;
}
.article-post-body p{
  margin:0 0 1.35em;
  text-align:justify;
}
.article-post-body h2,
.article-post-body h3,
.article-post-body h4{
  color:var(--heading);
  line-height:1.45;
  margin:1.8em 0 .8em;
  font-weight:600;
}
.article-post-body h2{
  font-size:24px;
  position:relative;
  padding-left:17px;
}
.article-post-body h2:before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  width:6px;
  height:1.05em;
  border-radius:6px;
  background:linear-gradient(180deg,var(--primary),var(--mint));
}
.article-post-body h3{font-size:20px}
.article-post-body ul,
.article-post-body ol{
  margin:0 0 1.6em;
  padding-left:26px;
}
.article-post-body ul li{
  position:relative;
  padding-left:8px;
  margin-bottom:.65em;
}
.article-post-body ul li:before{
  content:"";
  position:absolute;
  left:-20px;
  top:.78em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--mint);
}
.article-post-body ol{
  list-style:decimal;
}
.article-post-body ol li{
  margin-bottom:.65em;
  padding-left:4px;
}
.article-post-body blockquote{
  background:var(--soft);
  border-left:4px solid var(--primary);
  border-radius:0 14px 14px 0;
  padding:20px 26px;
  margin:0 0 1.6em;
  color:var(--body);
  font-size:16.5px;
}
.article-post-body blockquote p{margin-bottom:0}
.article-post-body a{
  color:var(--primary);
  border-bottom:1px dashed rgba(23,110,158,.45);
  transition:var(--transition);
}
.article-post-body a:hover{color:var(--mint);border-bottom-color:var(--mint)}
.article-post-body table{
  width:100%;
  margin:0 0 1.8em;
  border-collapse:collapse;
  background:#fff;
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 0 0 1px rgba(23,110,158,.08);
}
.article-post-body th{
  background:var(--soft);
  color:var(--heading);
  font-weight:600;
}
.article-post-body th,
.article-post-body td{
  border:1px solid rgba(23,110,158,.12);
  padding:12px 16px;
  text-align:left;
  font-size:15px;
}
.article-post-body img{
  border-radius:16px;
  border:8px solid #F1F6FA;
  margin:1.2em 0;
}
.article-post-body hr{
  margin:2.4em 0;
  border:0;
  border-top:1px dashed rgba(23,110,158,.2);
}
.article-post-body code,
.article-post-body pre{
  background:#1E2F3B;
  color:#EAF3F8;
  border-radius:10px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
.article-post-body code{
  padding:2px 8px;
  font-size:.9em;
}
.article-post-body pre{
  padding:18px 22px;
  overflow:auto;
  margin:0 0 1.7em;
  line-height:1.6;
}
.article-post-body pre code{background:transparent;padding:0}

.article-meta-foot{
  display:flex;
  flex-wrap:wrap;
  gap:14px 26px;
  align-items:center;
  background:#F7FAFD;
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px 22px;
  margin-top:38px;
  font-size:14.5px;
  color:var(--muted);
}
.article-meta-foot i{
  color:var(--primary);
  width:18px;
  margin-right:7px;
}
.article-foot-action{
  margin-top:24px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.text-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:500;
  color:var(--primary);
  border:1px solid var(--border-strong);
  background:transparent;
  padding:8px 18px;
  border-radius:var(--radius-btn);
  transition:var(--transition);
}
.text-btn i{transition:transform .22s}
.text-btn:hover{
  background:rgba(23,110,158,.07);
  color:var(--primary-deep);
  box-shadow:var(--shadow-sm);
}
.text-btn:hover i{transform:translateX(3px)}

.empty-card{
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  max-width:720px;
  margin:0 auto;
  text-align:center;
  padding:80px 30px;
}
.empty-icon{
  width:88px;
  height:88px;
  border-radius:50%;
  background:var(--soft);
  color:var(--primary);
  font-size:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:24px;
}
.empty-card h2{font-size:24px;color:var(--heading);font-weight:600;margin-bottom:12px}
.empty-card p{color:var(--muted);margin-bottom:10px}

.related-block{
  background:#EDF4F9;
  padding:72px 0 30px;
  border-radius:0;
}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.related-eyebrow{
  color:var(--primary);
  font-size:13px;
  font-weight:500;
  letter-spacing:2px;
  margin-bottom:6px;
}
.related-title{
  font-size:30px;
  font-weight:600;
  color:var(--heading);
  margin:0;
}
.related-note{color:var(--muted);font-size:15px;max-width:460px}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.related-card{
  background:#fff;
  border-radius:20px;
  border:1px solid rgba(23,110,158,.1);
  padding:10px 10px 24px;
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.related-cover{
  border-radius:15px;
  overflow:hidden;
  height:180px;
  background:var(--soft);
}
.related-cover img{width:100%;height:100%;object-fit:cover}
.related-body{padding:20px 12px 0 12px;flex:1}
.related-kicker{
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:1.5px;
  margin-bottom:6px;
}
.related-body h4{
  font-size:19px;
  font-weight:600;
  color:var(--heading);
  margin-bottom:10px;
  line-height:1.45;
}
.related-body p{
  color:var(--muted);
  font-size:14.5px;
  margin-bottom:14px;
}
.related-link{
  color:var(--primary);
  font-size:14.5px;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:7px;
  transition:var(--transition);
}
.related-link:hover{color:var(--mint)}
.related-link:hover i{transform:translateX(3px)}
.related-link i{transition:transform .2s}

.entry-cta{
  background:linear-gradient(120deg,#EAF3F8 0%,#DCEAF3 55%,#F3F8FB 100%);
  border:1px solid var(--border);
  border-radius:22px;
  padding:38px 42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-top:26px;
  margin-bottom:56px;
  flex-wrap:wrap;
}
.entry-cta-text h3{
  font-size:22px;
  color:var(--heading);
  font-weight:600;
  margin-bottom:6px;
}
.entry-cta-text p{color:var(--muted);margin:0}

.site-footer{
  background:linear-gradient(160deg,#173F52 0%,#12303D 100%);
  color:rgba(255,255,255,.76);
  padding:72px 0 24px;
}
.footer-inner{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:42px;
  padding-bottom:40px;
  border-bottom:1px dashed rgba(255,255,255,.18);
}
.site-footer .brand-name{color:#fff}
.site-footer .brand-name b{color:#45CBBB;margin-left:2px}
.site-footer .brand-sub{color:rgba(255,255,255,.56)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.65);margin:18px 0 0;max-width:340px}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:rgba(255,255,255,.68);
  font-size:14.5px;
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.footer-links a i{color:var(--mint);font-size:11px;transition:transform .2s}
.footer-links a:hover{color:#fff}
.footer-links a:hover i{transform:translateX(3px)}
.footer-contact{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:14px;
  color:rgba(255,255,255,.62);
  font-size:14px;
  line-height:1.65;
}
.footer-contact .fa-stack{
  color:var(--mint);
  font-size:15px;
  width:18px;
  height:auto;
  line-height:1;
  margin-top:2px;
  text-align:center;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding-top:22px;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}

.site-nav.opened .desktop-nav .nav-links{
  flex-direction:column;
  align-items:stretch;
  padding:16px;
  background:rgba(255,255,255,.97);
  border-radius:18px;
  box-shadow:var(--shadow-hover);
}
.site-nav.opened .nav-links a{
  color:var(--heading);
  border-radius:12px;
  padding:13px 16px;
}
.site-nav.opened .nav-links a:after{display:none}
.site-nav.opened .nav-links a:hover{background:var(--soft);color:var(--primary)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

@media (max-width:1199.98px){
  .desktop-nav{max-width:calc(100% - 330px)}
  .nav-links a{padding:9px 9px;font-size:14px}
  .nav-links a .long{display:none}
  .nav-links .short{display:inline}
}

@media (max-width:991.98px){
  .desktop-nav{
    display:none;
    position:absolute;
    top:68px;
    left:0;
    width:100%;
    border-radius:0 0 18px 18px;
  }
  .site-nav.opened .desktop-nav{
    display:block;
    width:calc(100% - 24px);
    left:12px;
  }
  .mobile-toggle{display:inline-flex}
  .search-icon{display:none}
  .nav-container{min-height:64px}
  .btn-primary-soft .text-only{display:none}
  .btn-primary-soft{padding:10px 14px;font-size:14px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:34px}
  .article-hero-title{font-size:32px}
  .related-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  body{font-size:15px}
  .page-hero{padding:130px 0 56px;min-height:300px}
  .crumbs{font-size:13px;margin-bottom:12px}
  .article-hero-title{font-size:27px}
  .article-hero-meta{gap:10px 14px;font-size:13px}
  .article-card{padding:28px 20px;margin-top:-44px}
  .article-card .article-tag{font-size:12px}
  .article-post-body{font-size:16.5px;line-height:1.9}
  .article-post-body h2{font-size:22px}
  .article-post-body h3{font-size:19px}
  .article-post-body th,.article-post-body td{font-size:14px;padding:10px}
  .empty-card{padding:60px 20px}
  .related-block{padding:56px 0 24px}
  .related-grid{grid-template-columns:1fr}
  .related-head{flex-direction:column;align-items:flex-start}
  .related-title{font-size:26px}
  .entry-cta{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .entry-cta-text h3{font-size:19px}
  .footer-inner{grid-template-columns:1fr;gap:30px;padding-bottom:20px}
  .footer-bottom{justify-content:center}
}

@media (max-width:520px){
  .article-hero-title{font-size:23px}
  .header-cta .btn-primary-soft{width:40px;height:40px;padding:0}
  .header-cta .btn-primary-soft .pe-1{display:none}
}

/* roulang page: category1 */
:root {
  --brand: #176E9E;
  --brand-2: #2A90BF;
  --teal: #23B6A6;
  --amber: #F6A94C;
  --bg: #F4F8FB;
  --card: #FFFFFF;
  --light-blue: #EAF3F8;
  --ink: #1E2F3B;
  --text: #3C5361;
  --muted: #6B8494;
  --faint: #97ACB8;
  --line: rgba(23, 110, 158, 0.14);
  --line-2: rgba(23, 110, 158, 0.18);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 28px rgba(31, 66, 90, 0.06);
  --shadow-hover: 0 18px 42px rgba(23, 77, 101, 0.12);
  --shadow-nav: 0 6px 24px rgba(23, 77, 101, 0.08);
  --section: 100px;
  --section-md: 72px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--brand-2); }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 12px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  transition: all .25s ease;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary-soft {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 18px rgba(23, 110, 158, 0.18);
}
.btn-primary-soft:hover {
  background: var(--teal);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(35, 182, 166, 0.22);
}
.btn-outline {
  background: transparent;
  color: var(--brand);
  border: 1.6px solid var(--brand);
}
.btn-outline:hover {
  background: rgba(23, 110, 158, 0.06);
  color: var(--brand);
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--brand);
  box-shadow: 0 10px 24px rgba(12, 40, 60, 0.14);
}
.btn-white:hover { background: #f4fbfd; color: var(--brand); transform: translateY(-2px); }

/* Header */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1080;
  background: rgba(255,255,255,0.4);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.65);
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
  padding: 12px 0;
}
.site-nav.scrolled {
  background: rgba(255,255,255,0.88);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-nav);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, var(--brand), var(--teal));
  color: #fff;
  font-size: 18px;
  box-shadow: 0 8px 18px rgba(23, 110, 158, 0.16);
}
.brand-name { font-size: 17px; font-weight: 600; color: var(--ink); letter-spacing: .02em; line-height: 1.2; }
.brand-name b { color: var(--brand); font-weight: 700; }
.brand-sub { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: .04em; margin-top: 2px; font-style: normal; }
.desktop-nav { flex: 1; display: flex; justify-content: center; }
.nav-links { display: flex; list-style: none; gap: 6px; margin: 0; padding: 0; align-items: center; }
.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--ink);
  border-radius: 10px;
  position: relative;
  transition: color .2s ease;
}
.nav-links a .nav-icon { color: var(--brand-2); font-size: 14px; opacity: .85; }
.nav-links a .short { display: none; }
.nav-links a.active-link,
.nav-links a:hover { color: var(--brand); }
.nav-links a.active-link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 2px;
  width: 22px; height: 3px;
  transform: translateX(-50%);
  background: var(--brand);
  border-radius: 999px;
}
.header-cta { display: flex; align-items: center; gap: 10px; }
.search-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  color: var(--brand);
  font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all .2s ease;
}
.search-icon:hover { border-color: var(--brand); background: rgba(23,110,158,0.06); }
.mobile-toggle { display: none; }
.btn-custom .text-only { display: inline; }

/* Mobile nav panel */
@media (max-width: 991px) {
  .desktop-nav { position: fixed; inset: 0; background: rgba(244, 248, 251, 0.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); z-index: 1050; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transform: translateY(-12px); transition: .25s ease; }
  .desktop-nav.open { opacity: 1; visibility: visible; transform: none; }
  .nav-links { flex-direction: column; gap: 6px; max-height: 70vh; overflow-y: auto; }
  .nav-links a { font-size: 18px; padding: 14px 20px; width: 220px; justify-content: center; }
  .nav-links a .short { display: none; }
  .nav-links a .long { display: block; }
  .nav-links a.active-link::after { bottom: 4px; }
  .mobile-toggle { display: inline-flex; width: 42px; height: 42px; border: 0; border-radius: 10px; background: #fff; color: var(--brand); font-size: 18px; align-items: center; justify-content: center; box-shadow: var(--shadow-card); cursor: pointer; z-index: 1060; }
  .header-cta .btn-custom { display: none; }
}

/* Category hero */
.category-hero {
  position: relative;
  min-height: 310px;
  display: flex;
  align-items: flex-end;
  padding: 160px 0 60px;
  overflow: hidden;
  background: linear-gradient(90deg, rgba(13, 54, 79, 0.92), rgba(23, 110, 158, 0.72)), url("/assets/images/backpic/back-1.webp") no-repeat center / cover;
  color: #fff;
}
.hero-glow {
  position: absolute;
  right: -80px; top: -100px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(35,182,166,0.32), transparent 70%);
  pointer-events: none;
}
.category-hero .container { position: relative; z-index: 2; }
.breadcrumb-nav { font-size: 14px; color: rgba(255,255,255,0.78); margin-bottom: 16px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.breadcrumb-nav a { color: rgba(255,255,255,0.9); border-bottom: 1px solid rgba(255,255,255,0.3); transition: .2s; }
.breadcrumb-nav a:hover { color: #fff; border-color: #fff; }
.breadcrumb-nav .current { color: rgba(255,255,255,0.85); }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .04em;
  color: rgba(255,255,255,0.92);
  margin-bottom: 16px;
}
.hero-kicker i { color: #FFFFFF; }
.category-hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin: 0 0 16px;
  max-width: 920px;
}
.category-hero .text-line { color: #B4E5F3; }
.hero-lead {
  max-width: 760px;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.88);
  margin: 0;
}

/* Tab capsule */
.cat-tabs {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  position: relative;
  z-index: 40;
}
.cat-tabs-container { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.cat-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s;
}
.cat-tab-btn i { color: var(--brand-2); font-size: 13px; }
.cat-tab-btn:hover { border-color: var(--brand); color: var(--brand); background: var(--light-blue); }
.cat-tab-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; }
.cat-tab-btn.active i { color: #fff; }

/* Section base */
.section-block { padding: var(--section) 0; }
.section-header { margin-bottom: 40px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--brand);
  background: var(--light-blue);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 12px;
}
.section-title { font-size: 34px; font-weight: 700; color: var(--ink); line-height: 1.25; margin: 0 0 12px; }
.section-desc { font-size: 16px; color: var(--muted); max-width: 640px; margin: 0; }

/* Content layout */
.category-content { padding: 80px 0 70px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 40px; align-items: start; }
.main-col { min-width: 0; }
.side-col { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 20px; }

/* Intro feature card */
.intro-panel {
  background: linear-gradient(135deg, #EAF3F8 0%, #FFFFFF 100%);
  border-radius: 20px;
  padding: 32px;
  margin-bottom: 32px;
  border: 1px solid var(--line);
}
.intro-panel h2 { font-size: 26px; font-weight: 700; color: var(--ink); margin: 12px 0 14px; }
.intro-panel p { margin: 0 0 12px; font-size: 16px; line-height: 1.85; }
.intro-panel .check-list { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; }
.intro-panel .check-list li { display: flex; gap: 10px; font-size: 15px; color: var(--text); }
.intro-panel .check-list li i { color: var(--teal); margin-top: 5px; font-size: 14px; }

/* Entry article card */
.entry-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  padding: 28px;
  margin-bottom: 20px;
  transition: all .25s ease;
}
.entry-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.entry-feature { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; padding: 0; overflow: hidden; }
.entry-feature .feature-img { position: relative; margin: 0; }
.entry-feature .feature-img img { width: 100%; height: 100%; min-height: 180px; object-fit: cover; }
.entry-feature .feature-body { padding: 30px 28px; }
.entry-list-card .row-line { display: flex; align-items: center; gap: 18px; }
.entry-list-card .rounded-thumb {
  flex: 0 0 130px; height: 110px; border-radius: 14px; object-fit: cover; overflow: hidden;
  background: var(--light-blue);
}
.entry-list-card .rounded-thumb img { width: 100%; height: 100%; object-fit: cover; }
.entry-body { flex: 1; min-width: 0; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(23,110,158,0.1);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.tag.tag-teal { background: rgba(35,182,166,0.12); color: #14877A; }
.tag.tag-blue { background: rgba(42,144,191,0.12); color: #1A7099; }
.entry-card h3 { font-size: 22px; font-weight: 600; color: var(--ink); line-height: 1.4; margin: 0 0 10px; }
.entry-card p { font-size: 15px; color: var(--muted); line-height: 1.8; margin: 0 0 16px; }
.entry-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 13px; color: var(--faint); }
.entry-meta i { color: var(--brand-2); font-size: 13px; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--brand);
  font-size: 15px;
  margin-top: 12px;
}
.text-link i { transition: transform .2s ease; font-size: 13px; }
.text-link:hover i { transform: translateX(4px); }

/* Sidebar card */
.side-card {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}
.side-help {
  background: linear-gradient(180deg, #EAF3F8, #F7FBFD);
  border: 1px solid rgba(23,110,158,0.12);
  border-radius: 18px;
  padding: 26px;
}
.side-help .side-icon {
  display: inline-flex;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 19px;
}
.side-card h3, .side-help h3 { font-size: 19px; font-weight: 700; color: var(--ink); margin: 0 0 10px; }
.help-list { list-style: none; padding: 0; margin: 0 0 16px; }
.help-list li { display: flex; gap: 10px; padding: 9px 0; font-size: 14px; line-height: 1.6; color: var(--text); border-bottom: 1px dashed rgba(23,110,158,0.14); align-items: flex-start; }
.help-list li i { color: var(--teal); margin-top: 5px; font-size: 12px; }
a.side-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; }
a.side-link i { font-size: 12px; transition: transform .2s; }
a.side-link:hover i { transform: translateX(3px); }

.quick-form .form-label { font-size: 14px; font-weight: 600; color: var(--ink); }
.quick-form .form-control {
  border: 1.5px solid rgba(23,110,158,0.18);
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 15px;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.quick-form .form-control:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(23,110,158,0.08); }
.form-tip { font-size: 12px; color: var(--faint); margin-top: 10px; }

/* Mini info chips */
.chip-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.chip {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(23,110,158,0.08);
  color: var(--brand);
  font-size: 13px;
  font-weight: 500;
}

/* Process panel / access check */
.access-check {
  background: linear-gradient(135deg, #F0F7FA 0%, #E8F2F7 100%);
  border-radius: 28px;
  padding: 50px 0;
  position: relative;
  overflow: hidden;
}
.access-inner .section-desc { max-width: 760px; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.step-card {
  background: rgba(255,255,255,0.95);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: 0 12px 30px rgba(23, 77, 101, 0.07);
  position: relative;
}
.step-num {
  display: inline-flex;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-family: Inter, "Barlow Condensed", sans-serif;
}
.step-card:nth-child(2) .step-num { background: var(--brand-2); }
.step-card:nth-child(3) .step-num { background: var(--teal); }
.step-card:nth-child(4) .step-num { background: var(--amber); color: #443021; }
.step-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.step-card p { font-size: 14px; line-height: 1.7; color: var(--muted); margin: 0; }
.step-arrow { position: absolute; right: -14px; top: 46px; color: #B6D3E0; font-size: 14px; z-index: 2; opacity: .7; }
.step-card:last-child .step-arrow { display: none; }

/* FAQ */
.faq-section { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.faq-wrap { display: grid; grid-template-columns: 38% 1fr; gap: 56px; align-items: flex-start; }
.faq-intro .section-title { margin-top: 12px; }
.faq-intro p { color: var(--muted); margin-bottom: 24px; }
.contact-mini {
  background: var(--light-blue);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(23,110,158,0.12);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.contact-mini i.contact-mark { color: var(--brand-2); font-size: 22px; margin-top: 4px; }
.contact-mini strong { display: block; color: var(--ink); }
.contact-mini span { font-size: 14px; color: var(--muted); }
.faq-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  margin-bottom: 12px;
  transition: border-color .2s, box-shadow .2s;
  overflow: hidden;
}
.faq-card.open,
.faq-card.has-collapse.show { border-color: rgba(23,110,158,0.28); box-shadow: 0 8px 18px rgba(31,66,90,0.06); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: 0;
  padding: 20px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  border-radius: 14px;
  transition: .2s;
}
.faq-question i {
  color: var(--faint);
  font-size: 15px;
  transition: transform .2s, color .2s;
  flex: 0 0 auto;
}
.faq-card .collapsed .faq-question i,
.faq-question:not(.collapsed) i,
.faq-question[aria-expanded="true"] i { transform: rotate(45deg); color: var(--brand); }
.faq-body { padding: 0 20px 18px; color: var(--text); font-size: 15px; line-height: 1.8; border-top: 1px dashed rgba(23,110,158,0.14); }

/* CTA */
.cta-wrap {
  background: linear-gradient(120deg, #EAF3F8 0%, #D6E9F2 50%, #E3F4F2 100%);
  border-radius: 24px;
  padding: 48px;
  margin: 70px 0 90px;
  border: 1px solid rgba(23,110,158,0.12);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
}
.cta-wrap h2 { font-size: 28px; color: var(--ink); margin: 0 0 8px; font-weight: 700; }
.cta-wrap p { margin: 0; color: var(--muted); font-size: 15px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  background: linear-gradient(180deg, #E9F0F5 0%, #DCEDF4 100%);
  padding: 64px 0 0;
  margin-top: 0;
}
.footer-inner { display: grid; grid-template-columns: 1.2fr .9fr .9fr 1fr; gap: 40px; padding-bottom: 36px; }
.footer-inner > div > p { font-size: 14px; color: var(--muted); line-height: 1.8; margin-top: 14px; max-width: 300px; }
.footer-title { font-size: 15px; font-weight: 700; color: var(--ink); margin: 0 0 16px; padding-bottom: 10px; border-bottom: 1px dashed rgba(23,110,158,0.18); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { padding: 5px 0; }
.footer-links a { color: var(--text); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: .2s; }
.footer-links a i { color: var(--brand-2); font-size: 11px; transition: transform .2s; }
.footer-links a:hover { color: var(--brand); }
.footer-links a:hover i { transform: translateX(3px); }
.footer-contact { display: flex; align-items: flex-start; gap: 10px; padding: 7px 0; font-size: 14px; color: var(--muted); }
.footer-contact i { color: var(--teal); margin-top: 4px; font-size: 14px; width: 18px; }
.footer-bottom {
  border-top: 1px dashed rgba(23,110,158,0.24);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--brand); }

/* Responsive */
@media (max-width: 1199px) {
  .nav-links a { padding: 10px 10px; font-size: 14px; }
  .nav-links a .long { display: none; }
  .nav-links a .short { display: inline; }
  .category-hero h1 { font-size: 40px; }
  .content-grid { grid-template-columns: minmax(0, 1fr); }
  .side-col { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991px) {
  .nav-links a .long { display: block; }
  .nav-links a .short { display: none; }
}
@media (max-width: 991px) {
  .section-block { padding: 72px 0; }
  .entry-feature { grid-template-columns: 1fr; }
  .entry-feature .feature-img img { height: 210px; }
  .step-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .step-arrow { display: none; }
  .faq-wrap { grid-template-columns: 1fr; }
  .cta-wrap { grid-template-columns: 1fr; padding: 36px; }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .side-col { display: flex; }
}
@media (max-width: 767px) {
  .container { padding: 0 18px; }
  .category-hero { min-height: 300px; padding: 140px 0 44px; }
  .category-hero h1 { font-size: 32px; }
  .hero-lead { font-size: 15px; }
  .float-tab { overflow-x: auto; flex-wrap: nowrap; justify-content: flex-start; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
  .cat-tab-btn { white-space: nowrap; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 15px; }
  .intro-panel { padding: 22px; }
  .intro-panel .check-list { grid-template-columns: 1fr; }
  .entry-list-card .row-line { flex-direction: column; }
  .entry-list-card .rounded-thumb { flex: none; width: 100%; height: 180px; }
  .step-grid { grid-template-columns: 1fr; }
  .side-col { display: flex; flex-direction: column; }
  .faq-wrap { margin-top: 16px; }
  .cta-wrap { padding: 28px 22px; margin-top: 48px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; justify-content: flex-start; }
  .header-cta .btn-custom { display: none; }
}

/* roulang page: category2 */
:root {
            --primary: #176E9E;
            --primary-dark: #125679;
            --secondary: #2A90BF;
            --teal: #23B6A6;
            --amber: #F6A94C;
            --bg: #F4F8FB;
            --bg-deep: #EAF3F8;
            --card-bg: #FFFFFF;
            --text: #1E2F3B;
            --text-body: #3C5361;
            --text-header: #1E2F3B;
            --muted: #6B8494;
            --light-muted: #97ACB8;
            --border: rgba(23, 110, 158, 0.14);
            --border-strong: rgba(23, 110, 158, 0.2);
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 8px 28px rgba(31, 66, 90, 0.06);
            --shadow-hover: 0 18px 42px rgba(23, 77, 101, 0.12);
            --shadow-header: 0 6px 24px rgba(23, 77, 101, 0.10);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Inter", "Helvetica Neue", "sans-serif";
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            color: var(--text-body);
            background-color: var(--bg);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-header);
            font-weight: 600;
            line-height: 1.3;
            margin-top: 0;
            margin-bottom: .5rem;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Buttons */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-sans);
            font-weight: 500;
            font-size: 16px;
            line-height: 1.2;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            border: 0;
            transition: all .25s ease;
            cursor: pointer;
        }
        .btn-custom i {
            margin-right: 8px;
        }
        .btn-primary-soft {
            color: #fff;
            background-color: var(--primary);
        }
        .btn-primary-soft:hover {
            background-color: var(--teal);
            color: #fff;
            box-shadow: 0 10px 24px rgba(35, 182, 166, 0.24);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 1.6px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            border-color: var(--teal);
            color: var(--teal);
            background: rgba(23, 110, 158, .06);
        }
        .btn-light-soft {
            background: #fff;
            color: var(--primary);
        }
        .btn-light-soft:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-white-outline {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, .45);
            color: #fff;
            backdrop-filter: blur(8px);
        }
        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.24);
            color: #fff;
            border-color: rgba(255, 255, 255, .8);
        }
        /* Nav */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 14px 0;
            background: rgba(255, 255, 255, 0.38);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.4);
            transition: background .25s ease, box-shadow .25s ease, padding .25s ease;
        }
        .site-nav.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: var(--shadow-header);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex: 0 0 auto;
            z-index: 1002;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(145deg, var(--primary), var(--teal));
            color: #fff;
            border-radius: 14px;
            font-size: 20px;
            box-shadow: 0 8px 18px rgba(23, 110, 158, 0.2);
        }
        .brand-name {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-header);
            line-height: 1.1;
            display: flex;
            align-items: baseline;
            white-space: nowrap;
        }
        .brand-name b {
            color: var(--primary);
            font-weight: 600;
            margin-left: 2px;
        }
        .brand-sub {
            display: block;
            font-style: normal;
            font-size: 11px;
            color: var(--muted);
            font-weight: 400;
            letter-spacing: 1px;
            line-height: 1.2;
            margin-top: 2px;
            white-space: nowrap;
        }
        .desktop-nav {
            display: block;
        }
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 6px;
            align-items: center;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-body);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 14px;
            border-radius: 10px;
            position: relative;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-links li a i {
            color: var(--primary);
            font-size: 14px;
            opacity: .75;
        }
        .nav-links li a:hover,
        .nav-links li a.active-link {
            color: var(--primary);
        }
        .nav-links li a.active-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--teal);
        }
        .nav-links .short {
            display: none;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
        }
        .header-cta .btn-custom {
            padding: 10px 18px;
            font-size: 14px;
        }
        .search-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 12px;
            color: var(--text-body);
            font-size: 16px;
            cursor: pointer;
            transition: all .2s;
        }
        .search-icon:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--bg-deep);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            font-size: 20px;
            color: var(--primary);
        }
        /* Mobile menu */
        .mobile-nav-drop {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            z-index: 1001;
            padding: 90px 24px 30px;
            flex-direction: column;
            overflow-y: auto;
        }
        .mobile-nav-drop.open {
            display: flex;
        }
        .mobile-nav-drop ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-nav-drop li a {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 18px;
            font-weight: 500;
            padding: 15px 8px;
            border-bottom: 1px solid var(--border);
            color: var(--text-body);
        }
        .mobile-nav-drop li a:hover,
        .mobile-nav-drop li a.active-link {
            color: var(--primary);
        }
        .mobile-nav-drop li a i {
            color: var(--primary);
            width: 22px;
            text-align: center;
        }
        .mobile-nav-close {
            position: absolute;
            top: 18px;
            right: 18px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 10px;
            width: 42px;
            height: 42px;
        }
        /* Hero Category */
        .category-hero {
            position: relative;
            padding-top: 150px;
            padding-bottom: 60px;
            background: linear-gradient(112deg, rgba(14, 42, 66, 0.92) 0%, rgba(18, 68, 98, 0.72) 55%, rgba(20, 118, 158, 0.52) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            background-color: #18344A;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 18px;
        }
        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.72);
            transition: color .2s;
        }
        .hero-breadcrumb a:hover {
            color: #fff;
        }
        .hero-breadcrumb i {
            margin: 0 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }
        .category-hero h1 {
            color: #fff;
            font-size: 42px;
            font-weight: 600;
            letter-spacing: 0.02em;
            max-width: 760px;
            line-height: 1.35;
            margin-bottom: 18px;
        }
        .category-hero .hero-desc {
            max-width: 600px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        /* Tab bar */
        .category-tab-bar {
            background: var(--bg);
            padding: 0;
            margin-top: -28px;
            position: relative;
            z-index: 20;
            border-bottom: 1px solid var(--border);
        }
        .cat-tab-scroll {
            display: flex;
            gap: 10px;
            align-items: center;
            justify-content: flex-start;
            overflow-x: auto;
            padding: 18px 0;
            scrollbar-width: none;
            white-space: nowrap;
        }
        .cat-tab-scroll::-webkit-scrollbar {
            display: none;
        }
        .cat-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: all .2s;
            flex: 0 0 auto;
        }
        .cat-tab i {
            color: var(--primary);
            opacity: .8;
        }
        .cat-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-deep);
        }
        .cat-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 6px 16px rgba(23, 110, 158, 0.24);
        }
        .cat-tab.active i {
            color: #fff;
        }
        /* Layout */
        .section {
            padding: 80px 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head .eyebrow {
            display: inline-block;
            background: var(--bg-deep);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 32px;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--muted);
            max-width: 600px;
            margin-bottom: 0;
        }
        .layout-2col {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .entry-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(23, 110, 158, 0.08);
            margin-bottom: 24px;
            transition: all .3s ease;
        }
        .entry-card.featured {
            margin-bottom: 32px;
        }
        .entry-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .entry-thumb {
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 190px;
            background: var(--bg-deep);
            margin-bottom: 20px;
        }
        .entry-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .entry-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-bottom: 12px;
        }
        .badge-soft {
            background: var(--bg-deep);
            color: var(--primary);
            font-weight: 500;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 8px;
        }
        .badge-teal {
            background: rgba(35, 182, 166, 0.13);
            color: #16897b;
            font-weight: 500;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 8px;
        }
        .badge-amber {
            background: rgba(246, 169, 76, 0.15);
            color: #c57b19;
            font-weight: 500;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 8px;
        }
        .entry-title {
            font-size: 21px;
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .entry-title a {
            color: var(--text-header);
        }
        .entry-title a:hover {
            color: var(--primary);
        }
        .entry-excerpt {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            font-weight: 500;
            color: var(--primary);
            font-size: 15px;
        }
        .text-link i {
            margin-left: 6px;
            transition: transform .2s;
        }
        .text-link:hover i {
            transform: translateX(4px);
        }
        /* Sidebar */
        .sidebar-widget {
            background: var(--bg-deep);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(23, 110, 158, 0.06);
        }
        .sidebar-widget h5 {
            font-size: 18px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h5 i {
            color: var(--teal);
        }
        .sidebar-widget p {
            color: var(--muted);
            font-size: 14px;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .sidebar-links li a {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            padding: 9px 0;
            font-size: 15px;
            color: var(--text-body);
            border-bottom: 1px dashed rgba(23, 110, 158, .12);
        }
        .sidebar-links li a i {
            color: var(--primary);
            font-size: 12px;
            margin-right: 4px;
        }
        .sidebar-links li a:hover {
            color: var(--primary);
            padding-left: 2px;
        }
        .help-mini {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
        }
        .help-mini label {
            font-size: 14px;
            font-weight: 500;
            display: block;
            margin-bottom: 10px;
        }
        .form-input {
            width: 100%;
            border: 1px solid var(--border-strong);
            background: #fff;
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: border-color .2s, box-shadow .2s;
            font-family: var(--font-sans);
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(23, 110, 158, 0.12);
        }
        .input-wrap {
            margin-bottom: 14px;
        }
        /* Steps */
        .step-area {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 44px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(23, 110, 158, 0.06);
        }
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .step-item {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            border: 1px solid rgba(23, 110, 158, 0.1);
            position: relative;
            transition: all .3s ease;
        }
        .step-item:hover {
            background: var(--bg-deep);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .step-item h6 {
            font-size: 16px;
            margin-bottom: 8px;
        }
        .step-item p {
            margin-bottom: 0;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.65;
        }
        /* Info band */
        .info-band {
            background: var(--primary);
            padding: 42px 0;
        }
        .info-grid {
            display: flex;
            justify-content: space-between;
            gap: 24px;
            text-align: center;
        }
        .info-grid .metric {
            flex: 1;
            padding: 8px 0;
            border-left: 1px solid rgba(255, 255, 255, 0.22);
        }
        .info-grid .metric:first-child {
            border-left: 0;
        }
        .metric-value {
            font-family: 'Inter', sans-serif;
            font-size: 40px;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
        }
        .metric-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }
        /* Q&A */
        .faq-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 28px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
            transition: all .3s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item h6 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 17px;
            margin-bottom: 8px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }
        .faq-item h6 i {
            color: var(--primary);
            transition: transform .25s;
            font-size: 18px;
        }
        .faq-item.active h6 i {
            transform: rotate(45deg);
        }
        .faq-answer {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid rgba(23, 110, 158, .1);
            padding-top: 12px;
            margin-top: 8px;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        /* CTA */
        .cta-area {
            background: linear-gradient(112deg, #EAF3F8 0%, #DFEEF5 100%);
            border-radius: var(--radius-lg);
            padding: 34px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            margin-top: 36px;
            border: 1px solid var(--border);
        }
        .cta-area h4 {
            margin-bottom: 6px;
        }
        .cta-area p {
            margin-bottom: 0;
            color: var(--muted);
            font-size: 15px;
        }
        /* footer */
        .site-footer {
            background: #E9F0F5;
            padding-top: 60px;
            padding-bottom: 0;
            margin-top: 60px;
            color: var(--muted);
            font-size: 14px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-inner .brand-name {
            font-size: 17px;
        }
        .footer-inner .brand-mark {
            width: 34px;
            height: 34px;
            font-size: 16px;
        }
        .footer-inner p {
            margin-top: 16px;
            max-width: 330px;
            line-height: 1.8;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            margin: 12px 0 16px;
            color: var(--text-header);
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 9px;
        }
        .footer-links a {
            color: var(--text-body);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a i {
            color: var(--primary);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .footer-contact .fa-stack {
            font-size: 14px;
            color: var(--teal);
        }
        .footer-bottom {
            border-top: 1px dashed rgba(23, 110, 158, 0.22);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            color: var(--muted);
            font-size: 13px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: var(--muted);
        }
        .btn-custom i.pe-1 {
            margin-right: 2px;
        }
        /* Responsive */
        @media (max-width: 1199px) {
            .desktop-nav .nav-links li a .long {
                display: none;
            }
            .desktop-nav .nav-links li a .short {
                display: inline;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 991px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .layout-2col {
                grid-template-columns: 1fr;
            }
            .sidebar-col {
                order: 3;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .category-hero {
                min-height: 280px;
                padding-top: 120px;
                padding-bottom: 45px;
            }
            .category-hero h1 {
                font-size: 28px;
                line-height: 1.4;
            }
            .section {
                padding: 56px 0;
            }
            .step-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-2col {
                grid-template-columns: 1fr;
            }
            .cta-area {
                flex-direction: column;
                align-items: flex-start;
            }
            .metric-value {
                font-size: 28px;
            }
            .info-grid {
                flex-wrap: wrap;
            }
            .info-grid .metric {
                flex: 0 0 40%;
                border-left: 0;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .header-cta .btn-custom {
                display: none;
            }
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }
        @media (max-width: 575px) {
            .nav-links li a {
                font-size: 14px;
                padding: 8px 10px;
            }
            .brand-name {
                font-size: 17px;
            }
            .brand-sub {
                display: none;
            }
            .step-grid {
                grid-template-columns: 1fr;
            }
            .side-help-wrap {
                margin-bottom: 20px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #176E9E;
            --secondary: #2A90BF;
            --teal: #23B6A6;
            --warm: #F6A94C;
            --bg: #F4F8FB;
            --white: #FFFFFF;
            --title: #1E2F3B;
            --body: #3C5361;
            --muted: #6B8494;
            --faint: #97ACB8;
            --line: rgba(23, 110, 158, 0.14);
            --line-strong: rgba(23, 110, 158, 0.18);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-card: 0 8px 28px rgba(31, 66, 90, 0.06);
            --shadow-hover: 0 18px 42px rgba(23, 77, 101, 0.12);
            --shadow-nav: 0 6px 24px rgba(23, 77, 101, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Inter", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        ::selection {
            background: rgba(35, 182, 166, 0.18);
            color: var(--title);
        }

        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1090;
            padding: 18px 0;
            background: linear-gradient(180deg, rgba(14, 48, 66, 0.42) 0%, rgba(14, 48, 66, 0.02) 100%);
            transition: padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-nav.scrolled {
            padding: 10px 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-nav);
            border-bottom: 1px solid rgba(23, 110, 158, 0.1);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            color: #fff;
            font-size: 20px;
            background: linear-gradient(135deg, #176E9E 0%, #23B6A6 100%);
            box-shadow: 0 8px 18px rgba(23, 110, 158, 0.28);
        }

        .brand-name {
            font-size: 22px;
            line-height: 1.15;
            color: #fff;
            letter-spacing: 0.5px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .brand-name b {
            font-weight: 700;
        }

        .brand-sub {
            display: block;
            font-size: 10px;
            color: rgba(255, 255, 255, 0.76);
            letter-spacing: 0.22em;
            font-style: normal;
            margin-top: 2px;
        }

        .site-nav.scrolled .brand-name {
            color: var(--title);
        }

        .site-nav.scrolled .brand-sub {
            color: var(--muted);
        }

        .site-nav.scrolled .brand-mark {
            box-shadow: 0 6px 14px rgba(23, 110, 158, 0.2);
        }

        .desktop-nav .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .desktop-nav .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.95);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            transition: background 0.25s ease, color 0.25s ease, opacity 0.25s ease;
        }

        .desktop-nav .nav-links a i.nav-icon {
            font-size: 13px;
            opacity: 0.82;
        }

        .desktop-nav .nav-links a .short {
            display: none;
        }

        .desktop-nav .nav-links a:hover,
        .desktop-nav .nav-links a.active-link {
            color: #fff;
            background: rgba(255, 255, 255, 0.14);
        }

        .desktop-nav .nav-links a.active-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 6px;
            height: 2px;
            border-radius: 2px;
            background: var(--teal);
        }

        .site-nav.scrolled .desktop-nav .nav-links a {
            color: var(--title);
        }

        .site-nav.scrolled .desktop-nav .nav-links a:hover,
        .site-nav.scrolled .desktop-nav .nav-links a.active-link {
            color: var(--primary);
            background: rgba(23, 110, 158, 0.08);
        }

        .site-nav.scrolled .desktop-nav .nav-links a.active-link::after {
            background: var(--primary);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-icon {
            width: 42px;
            height: 42px;
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.25s ease;
        }

        .site-nav.scrolled .search-icon {
            border-color: var(--line);
            background: #fff;
            color: var(--primary);
        }

        .search-icon:hover {
            background: var(--teal);
            border-color: var(--teal);
            color: #fff;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 0;
            border-radius: 12px;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary-soft {
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .btn-primary-soft:hover {
            background: rgba(35, 182, 166, 0.9);
            border-color: var(--teal);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-nav.scrolled .btn-primary-soft {
            background: var(--primary);
            border-color: transparent;
            color: #fff;
        }

        .site-nav.scrolled .btn-primary-soft:hover {
            background: var(--teal);
            color: #fff;
        }

        .btn-white {
            background: #ffffff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: #EAF3F8;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .btn-outline-white {
            background: transparent;
            border: 1.6px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .mobile-toggle {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.45);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 17px;
            display: none;
            align-items: center;
            justify-content: center;
        }

        .site-nav.scrolled .mobile-toggle {
            border-color: var(--line);
            color: var(--primary);
            background: #fff;
        }

        @media (max-width: 1199.98px) {
            .desktop-nav .nav-links a {
                padding: 9px 9px;
                font-size: 14px;
            }
        }

        @media (max-width: 991.98px) {
            .mobile-toggle {
                display: inline-flex;
            }

            .desktop-nav {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: min(82vw, 340px);
                background: rgba(255, 255, 255, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border-left: 1px solid var(--line);
                box-shadow: -20px 0 50px rgba(23, 77, 101, 0.18);
                padding: 96px 26px 40px;
                transform: translateX(105%);
                visibility: hidden;
                opacity: 0;
                transition: transform 0.32s ease, opacity 0.3s ease, visibility 0.32s ease;
                overflow-y: auto;
            }

            body.nav-menu-open .desktop-nav {
                transform: translateX(0);
                visibility: visible;
                opacity: 1;
            }

            body.nav-menu-open .site-nav {
                background: rgba(255, 255, 255, 0.92);
                box-shadow: var(--shadow-nav);
            }

            body.nav-menu-open .brand-name,
            body.nav-menu-open .brand-sub {
                color: var(--title);
            }

            body.nav-menu-open .brand-sub {
                color: var(--muted);
            }

            body.nav-menu-open .mobile-toggle {
                border-color: var(--line);
                background: #fff;
                color: var(--primary);
            }

            .desktop-nav .nav-links {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

            .desktop-nav .nav-links a {
                display: flex;
                align-items: center;
                justify-content: flex-start;
                padding: 13px 16px;
                color: var(--title);
                background: #fff;
                font-size: 16px;
                border-radius: 12px;
            }

            .desktop-nav .nav-links a:hover,
            .desktop-nav .nav-links a.active-link {
                color: var(--primary);
                background: #EAF3F8;
            }

            .desktop-nav .nav-links a.active-link::after {
                display: none;
            }

            .header-cta .search-icon,
            .header-cta .btn-custom {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .brand-name {
                font-size: 19px;
            }

            .brand-mark {
                width: 38px;
                height: 38px;
                font-size: 17px;
            }
        }

        /* ===== 分类 Hero ===== */
        .cat-hero {
            position: relative;
            padding: 198px 0 108px;
            background-image: linear-gradient(110deg, rgba(14, 52, 73, 0.94) 0%, rgba(22, 90, 120, 0.82) 55%, rgba(23, 110, 158, 0.66) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .cat-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            top: 40px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(35, 182, 166, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .cat-hero-content {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.82);
        }

        .breadcrumb-nav a:hover {
            color: #fff;
        }

        .breadcrumb-nav i {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb-nav .crumb-current {
            color: #fff;
            font-weight: 500;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(35, 182, 166, 0.2);
            border: 1px solid rgba(35, 182, 166, 0.45);
            padding: 6px 14px;
            border-radius: 999px;
            color: #E6F9F5;
            font-size: 13px;
            letter-spacing: 0.08em;
            margin-bottom: 20px;
        }

        .cat-hero h1 {
            font-size: 44px;
            line-height: 1.22;
            font-weight: 600;
            letter-spacing: -0.02em;
            max-width: 780px;
            margin: 0 0 18px;
            color: #ffffff;
        }

        .cat-hero .cat-lead {
            font-size: 17px;
            line-height: 1.75;
            max-width: 720px;
            color: rgba(255, 255, 255, 0.86);
            margin-bottom: 22px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin: 0;
        }

        .hero-meta li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.78);
        }

        .hero-meta li i {
            color: #A5E7E0;
        }

        @media (max-width: 767.98px) {
            .cat-hero {
                padding: 158px 0 82px;
            }

            .cat-hero h1 {
                font-size: 32px;
            }

            .cat-hero .cat-lead {
                font-size: 15px;
            }
        }

        /* ===== 分类横向 Tab ===== */
        .cat-tabs-wrap {
            background: transparent;
            margin-top: -32px;
            position: relative;
            z-index: 20;
        }

        .cat-tabs-inner {
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow-card);
            padding: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
            overflow-x: auto;
            border: 1px solid var(--line);
        }

        .cat-tabs-inner a {
            flex: 0 0 auto;
            padding: 9px 18px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .cat-tabs-inner a:hover {
            color: var(--secondary);
            background: #F4F8FB;
        }

        .cat-tabs-inner a.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(23, 110, 158, 0.24);
        }

        @media (max-width: 575.98px) {
            .cat-tabs-wrap {
                margin-top: -20px;
            }

            .cat-tabs-inner {
                padding: 6px;
                border-radius: 16px;
            }

            .cat-tabs-inner a {
                padding: 8px 14px;
                font-size: 14px;
            }
        }

        /* ===== 分类正文区域 ===== */
        .category-main-section {
            padding: 50px 0 18px;
        }

        .category-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 322px;
            gap: 28px;
            align-items: start;
        }

        .content-main {
            min-width: 0;
        }

        .intro-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 30px 32px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
            background: linear-gradient(120deg, #ffffff 0%, #F5FBFE 100%);
        }

        .intro-card .intro-grid {
            display: flex;
            align-items: flex-start;
            gap: 18px;
        }

        .intro-icon {
            width: 52px;
            height: 52px;
            flex: 0 0 52px;
            border-radius: 16px;
            background: #EAF3F8;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 23px;
        }

        .intro-card h2 {
            font-size: 23px;
            color: var(--title);
            font-weight: 600;
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .intro-card p {
            font-size: 15px;
            color: var(--body);
            margin-bottom: 14px;
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .intro-tags .tag {
            background: #EAF3F8;
            color: var(--primary);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
        }

        .section-title {
            margin: 26px 0 18px;
        }

        .section-title .overline {
            display: inline-block;
            font-size: 12px;
            letter-spacing: 0.16em;
            color: var(--teal);
            font-weight: 600;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section-title h2 {
            font-size: 29px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .section-title p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
            max-width: 640px;
        }

        /* 入口信息卡 */
        .entry-card {
            display: grid;
            grid-template-columns: 208px 1fr;
            background: #ffffff;
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-bottom: 18px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .entry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .entry-thumb {
            overflow: hidden;
            min-height: 190px;
        }

        .entry-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .entry-card:hover .entry-thumb img {
            transform: scale(1.04);
        }

        .entry-card-body {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
            padding: 26px 28px;
            gap: 10px;
        }

        .entry-card-body .badge-tag {
            display: inline-block;
            background: #EAF3F8;
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
        }

        .entry-card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--title);
            margin: 0;
            line-height: 1.4;
        }

        .entry-card-body p {
            font-size: 15px;
            color: var(--body);
            margin: 0 0 4px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
        }

        .text-link i {
            transition: transform 0.25s ease;
        }

        .text-link:hover {
            color: var(--teal);
        }

        .text-link:hover i {
            transform: translateX(3px);
        }

        /* 右侧栏 */
        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: 92px;
        }

        .side-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .side-help-card {
            background: linear-gradient(135deg, #EAF3F8 0%, #F0F9FA 100%);
            border: 1px solid rgba(23, 110, 158, 0.1);
        }

        .side-help-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 18px rgba(23, 110, 158, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            margin-bottom: 16px;
        }

        .side-card h3 {
            font-size: 18px;
            color: var(--title);
            font-weight: 600;
            margin: 0 0 10px;
        }

        .side-card p {
            font-size: 14px;
            color: var(--body);
            margin-bottom: 12px;
        }

        .side-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .side-links a {
            font-size: 14px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .side-links a:hover {
            color: var(--teal);
        }

        .side-links a i {
            color: var(--teal);
            font-size: 11px;
        }

        .help-form label {
            font-size: 14px;
            color: var(--body);
            display: block;
            margin-bottom: 8px;
        }

        .help-form input {
            width: 100%;
            border: 1.5px solid var(--line-strong);
            background: #fff;
            border-radius: 12px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--title);
            outline: none;
            transition: border 0.25s ease, box-shadow 0.25s ease;
        }

        .help-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(23, 110, 158, 0.1);
        }

        .help-form .btn-block {
            width: 100%;
            margin-top: 12px;
            background: var(--primary);
            color: #fff;
        }

        .help-form .btn-block:hover {
            background: var(--teal);
        }

        .form-feedback {
            margin-top: 10px;
            font-size: 13px;
            color: var(--teal);
        }

        .form-tip {
            font-size: 12px;
            color: var(--muted);
            margin: 10px 0 0;
        }

        @media (max-width: 991.98px) {
            .category-grid {
                grid-template-columns: 1fr;
            }

            .side-panel {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 767.98px) {
            .entry-card {
                grid-template-columns: 1fr;
            }

            .entry-thumb img {
                max-height: 200px;
            }

            .side-panel {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 下载前检查 ===== */
        .check-section {
            padding: 96px 0;
            background: #fff;
        }

        .check-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 22px;
            margin-top: 30px;
        }

        .check-card {
            background: #F4F8FB;
            border: 1px solid rgba(23, 110, 158, 0.08);
            border-radius: var(--radius-lg);
            padding: 25px;
            display: flex;
            gap: 17px;
            transition: background 0.3s ease, transform 0.3s ease;
        }

        .check-card:hover {
            background: #EAF3F8;
            transform: translateY(-3px);
        }

        .check-card .check-index {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.08em;
        }

        .check-card .check-icon {
            flex: 0 0 44px;
            width: 44px;
            height: 44px;
            border-radius: 13px;
            background: #fff;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(23, 110, 158, 0.08);
        }

        .check-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            margin: 0 0 6px;
        }

        .check-card p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            color: var(--body);
        }

        @media (max-width: 767.98px) {
            .check-section {
                padding: 56px 0;
            }

            .check-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 接入步骤 ===== */
        .process-section {
            padding: 96px 0;
            background: var(--bg);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 18px;
            margin-top: 34px;
        }

        .process-step {
            position: relative;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            padding: 24px;
        }

        .process-step .step-num {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .process-step h3 {
            font-size: 17px;
            color: var(--title);
            font-weight: 600;
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            color: var(--body);
        }

        .process-step:not(:last-child)::after {
            content: "";
            position: absolute;
            left: calc(100% - 2px);
            top: 38px;
            width: 20px;
            border-top: 1px dashed var(--teal);
        }

        @media (max-width: 991.98px) {
            .process-step:not(:last-child)::after {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .process-section {
                padding: 56px 0;
            }

            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
            background: #fff;
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 28px;
            align-items: start;
        }

        .faq-side {
            background: linear-gradient(130deg, #176E9E 0%, #1E8BB8 60%, #23AEA8 100%);
            color: #fff;
            border-radius: 24px;
            padding: 28px;
            box-shadow: 0 18px 40px rgba(23, 110, 158, 0.22);
        }

        .faq-side .side-mark {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .faq-side h2 {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.4;
            margin: 0 0 12px;
        }

        .faq-side p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
        }

        .faq-side .btn-custom {
            background: #fff;
            color: var(--primary);
        }

        .faq-side .btn-custom:hover {
            transform: translateY(-2px);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 3px 20px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(35, 182, 166, 0.5);
            box-shadow: var(--shadow-card);
        }

        .faq-q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            background: transparent;
            border: 0;
            padding: 17px 0;
            color: var(--title);
            font-size: 16px;
            font-weight: 500;
            line-height: 1.45;
            cursor: pointer;
            padding-left: 2px;
        }

        .faq-q i {
            color: var(--primary);
            font-size: 15px;
            transition: transform 0.25s ease, color 0.25s ease;
        }

        .faq-item.open .faq-q i {
            transform: rotate(45deg);
            color: var(--teal);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-a p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--body);
            padding: 0 0 16px;
            border-top: 1px dashed var(--line);
            padding-top: 14px;
            margin: 0;
        }

        .faq-item.open .faq-a {
            max-height: 300px;
        }

        @media (max-width: 991.98px) {
            .faq-layout {
                grid-template-columns: 1fr;
            }

            .faq-side {
                padding: 24px;
            }
        }

        @media (max-width: 767.98px) {
            .faq-section {
                padding: 56px 0;
            }

            .faq-q {
                font-size: 15px;
            }
        }

        /* ===== CTA 联系帮助 ===== */
        .cta-section {
            padding: 96px 0;
            background: var(--bg);
        }

        .cta-card {
            position: relative;
            overflow: hidden;
            background: linear-gradient(115deg, #EAF3F8 0%, #F3FAFB 45%, #E3F6F3 100%);
            border: 1px solid rgba(23, 110, 158, 0.12);
            border-radius: 24px;
            padding: 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .cta-left {
            max-width: 620px;
        }

        .cta-mark {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: #fff;
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 10px 22px rgba(23, 110, 158, 0.12);
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--title);
            margin: 0 0 12px;
        }

        .cta-card p {
            font-size: 16px;
            color: var(--body);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            flex: 0 0 auto;
        }

        .btn-blue {
            background: var(--primary);
            color: #fff;
        }

        .btn-blue:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(23, 110, 158, 0.26);
        }

        .btn-soft-blue {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--line-strong);
        }

        .btn-soft-blue:hover {
            background: #EAF3F8;
            border-color: var(--secondary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        @media (max-width: 991.98px) {
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .cta-section {
                padding: 56px 0;
            }

            .cta-card {
                padding: 26px;
            }

            .cta-card h2 {
                font-size: 23px;
            }

            .cta-actions .btn-custom {
                width: 100%;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(140deg, #163A4C 0%, #1D4D61 60%, #165267 100%);
            color: #D9E6ED;
            padding: 72px 0 0;
        }

        .site-footer .brand-logo {
            margin-bottom: 14px;
        }

        .site-footer .brand-name {
            color: #fff;
            font-size: 22px;
        }

        .site-footer .brand-sub {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding: 8px 0 44px;
        }

        .footer-inner p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.68);
            max-width: 340px;
        }

        .footer-title {
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 18px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            border-radius: 99px;
            background: var(--teal);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-links a i {
            font-size: 11px;
            color: var(--teal);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 14px;
        }

        .footer-contact .fa-stack {
            width: 24px;
            height: 24px;
            flex: 0 0 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: var(--teal);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            margin-top: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px dashed rgba(255, 255, 255, 0.2);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.54);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767.98px) {
            .site-footer {
                padding-top: 48px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 30px;
                padding-bottom: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }

            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category4 */
:root {
  --brand:#176E9E;
  --brand-hover:#2A90BF;
  --accent:#23B6A6;
  --warm:#F6A94C;
  --bg-page:#F4F8FB;
  --bg-deep:#EAF3F8;
  --title-color:#1E2F3B;
  --text-color:#3C5361;
  --muted-color:#6B8494;
  --light-muted:#97ACB8;
  --line: rgba(23,110,158,.12);
  --line-strong: rgba(23,110,158,.2);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-tag:8px;
  --shadow-card:0 8px 28px rgba(31,66,90,.06);
  --shadow-card-hover:0 18px 42px rgba(23,77,101,.12);
  --shadow-nav:0 6px 24px rgba(23,77,101,.08);
  --font-main:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Helvetica Neue',Arial,sans-serif;
  --font-num:'Inter','Barlow Condensed','DIN Alternate',sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg-page);
  color:var(--text-color);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
ul,ol{list-style:none}
a{text-decoration:none;color:inherit;transition:color .2s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
h1,h2,h3,h4,h5,h6{font-family:var(--font-main);font-weight:600;line-height:1.3;color:var(--title-color);letter-spacing:.1px}
p{color:var(--text-color)}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:8px}
::-webkit-scrollbar-track{background:#EDF3F7}
::-webkit-scrollbar-thumb{background:#a7c1d2;border-radius:20px}
::-webkit-scrollbar-thumb:hover{background:#8bb2c9}

/* 通用版式 */
.section{padding:100px 0}
.section-hero-inner{padding:64px 0 48px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:44px;
  gap:30px;
}
.section-head-left{max-width:640px}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(23,110,158,.08);
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  padding:7px 16px 7px 12px;
  border-radius:100px;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.section-tag .tag-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.section-title{
  font-size:32px;
  line-height:1.3;
  margin-bottom:10px;
  color:var(--title-color);
  font-weight:600;
}
.section-title .blue{color:var(--brand)}
.section-desc{color:var(--muted-color);font-size:15px;line-height:1.75}

/* 页面顶部导航 */
.site-nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1055;
  background:rgba(255,255,255,.46);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.38);
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
  padding:10px 0;
}
.site-nav.scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:var(--shadow-nav);
  border-bottom-color:rgba(23,110,158,.08);
}
.nav-container{
  display:flex;
  align-items:center;
  gap:32px;
  flex-wrap:wrap;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;height:40px;
  border-radius:13px;
  background:linear-gradient(135deg,#176E9E 5%,#23B6A6 100%);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  box-shadow:0 8px 18px rgba(23,110,158,.18);
}
.brand-name{
  font-size:18px;
  font-weight:600;
  color:#1E2F3B;
  line-height:1.15;
  white-space:nowrap;
}
.brand-name b{position:relative;color:#176E9E;font-weight:600}
.brand-name b:after{
  content:'';position:absolute;bottom:-2px;left:0;width:100%;height:2px;
  background:linear-gradient(to right,#176E9E,#23B6A6);
  border-radius:20px;
}
.brand-sub{
  display:block;
  font-size:11px;
  font-weight:400;
  color:#6B8494;
  letter-spacing:2px;
  margin-top:2px;
  font-style:normal;
}
.brand-sub i{font-style:normal}
.desktop-nav{flex:1;min-width:0}
.nav-links{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:12px;
  margin:0;padding:0;
  list-style:none;
}
.nav-links li a{
  display:flex;
  align-items:center;
  gap:7px;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--secondary-text,#3C5361);
  border-radius:12px;
  position:relative;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-links li a .nav-icon{font-size:14px;color:#86a8bd;transition:color .2s}
.nav-links li a:hover{
  color:#176E9E;
  background:rgba(23,110,158,.07);
}
.nav-links li a:hover .nav-icon{color:#176E9E}
.nav-links li a.active-link{
  color:#176E9E;
  font-weight:600;
}
.nav-links li a.active-link:after{
  content:'';
  position:absolute;
  left:18px;right:18px;bottom:4px;
  height:2px;
  border-radius:4px;
  background:linear-gradient(to right,#176E9E,#23B6A6);
}
.nav-links .short{display:none}
.header-cta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-icon{
  width:42px;height:42px;
  border-radius:12px;
  background:rgba(255,255,255,.1);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#4e6b7a;
  border:1px solid rgba(23,110,158,.1);
  transition:all .2s ease;
}
.search-icon:hover{
  color:#176E9E;
  background:rgba(23,110,158,.08);
}
.btn-custom{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:12px;
  padding:11px 22px;
  font-size:15px;
  font-weight:500;
  line-height:1;
  position:relative;
  transition:all .25s ease;
  border:none;
  cursor:pointer;
  white-space:nowrap;
}
.btn-primary-soft{
  background:#176E9E;
  color:#fff;
  box-shadow:0 6px 18px rgba(23,110,158,.22);
}
.btn-primary-soft:hover{
  background:#2A90BF;
  color:#fff;
  box-shadow:0 10px 24px rgba(42,144,191,.3);
}
.btn-primary-soft:active{
  background:#146086;
  transform:translateY(1px);
}
.btn-outline-custom{
  background:transparent;
  border:1px solid rgba(23,110,158,.35);
  color:#176E9E;
}
.btn-outline-custom:hover{
  background:rgba(23,110,158,.08);
  color:#176E9E;
}
.btn-white{
  background:#fff;
  color:#176E9E;
  box-shadow:0 10px 26px rgba(255,255,255,.25);
}
.btn-white:hover{
  background:#F4F8FB;
  color:#0f5b86;
  box-shadow:0 12px 30px rgba(255,255,255,.3);
  transform:translateY(-2px);
}
.mobile-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:#315b71;
  border:1px solid rgba(23,110,158,.15);
  background:rgba(255,255,255,.5);
}
.header-cta .text-only{letter-spacing:.5px}

/* 分类页 hero */
.cate-hero{
  background:
    linear-gradient(105deg, rgba(12,54,82,.93) 0%, rgba(19,55,87,.88) 40%, rgba(22,79,107,.74) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:148px 0 58px;
  position:relative;
  overflow:hidden;
}
.cate-hero.bg-deep-blue{
  background:
    linear-gradient(105deg, rgba(7,51,77,.95) 0%, rgba(17,71,106,.86) 40%, rgba(22,80,108,.75) 100%),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.cate-hero .hero-glow{
  content:'';
  position:absolute;
  right:-80px;top:20px;
  width:300px;height:300px;
  background:radial-gradient(circle, rgba(246,169,76,.22), transparent 70%);
  border-radius:50%;
  pointer-events:none;
}
.cate-hero .hero-glow-2{
  content:'';
  position:absolute;
  left:35%;bottom:-100px;
  width:260px;height:260px;
  background:radial-gradient(circle, rgba(35,182,166,.18), transparent 75%);
  border-radius:50%;
  pointer-events:none;
}
.cate-hero .breadcrumb-wrap{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.7);
  margin-bottom:18px;
}
.cate-hero .breadcrumb-wrap a{
  color:rgba(255,255,255,.8);
  display:flex;align-items:center;gap:5px;
}
.cate-hero .breadcrumb-wrap a:hover{color:#fff}
.cate-hero .breadcrumb-wrap .sep{padding:0 4px;color:rgba(255,255,255,.4)}
.cate-hero .breadcrumb-wrap .current{color:#fff;font-weight:500}
.cate-hero h1.cate-title{
  position:relative;
  z-index:2;
  color:#fff;
  font-size:38px;
  font-weight:700;
  max-width:720px;
  line-height:1.25;
  letter-spacing:.2px;
  margin-bottom:18px;
}
.cate-hero h1.cate-title span{
  color:#6ec7e0;
}
.cate-hero .cate-lead{
  position:relative;
  z-index:2;
  max-width:580px;
  font-size:15px;
  color:rgba(255,255,255,.76);
  margin-bottom:34px;
  line-height:1.9;
}
.cate-hero-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.hero-stat-row{
  margin-top:44px;
  display:flex;
  gap:28px 40px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:22px;
}
.hero-stat-item span{
  display:block;
  color:#fff;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:600;
  line-height:1.1;
}
.hero-stat-item small{
  font-size:12px;
  color:rgba(255,255,255,.6);
}

/* Tab 引导条 */
.category-tabs{
  border-bottom:1px solid var(--line);
  background:#fff;
  box-shadow:0 4px 16px rgba(23,77,101,.05);
}
.category-tabs .tabs-container{
  max-width:1200px;
  margin:0 auto;
  padding:16px 24px;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.tab-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 22px;
  border-radius:100px;
  font-size:14px;
  font-weight:500;
  color:var(--text-color);
  background:transparent;
  border:1px solid rgba(23,110,158,.2);
  transition:all .2s ease;
  cursor:pointer;
  white-space:nowrap;
}
.tab-item:hover{
  border-color:rgba(23,110,158,.5);
  color:#176E9E;
  background:rgba(23,110,158,.05);
}
.tab-item.active{
  background:rgba(246,169,76,.16);
  border-color:rgba(246,169,76,.45);
  color:#b26a00;
  font-weight:600;
}
.tab-item i{font-size:13px}

/* 主内容两栏 */
.category-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:38px;
  margin-top:-24px;
  position:relative;
  z-index:4;
  align-items:start;
}
.category-main{
  background:transparent;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.article-panel{
  background:#fff;
  border-radius:20px;
  box-shadow:var(--shadow-card);
  border:1px solid rgba(23,110,158,.08);
  overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease;
}
.article-panel:hover{
  box-shadow:var(--shadow-card-hover);
  transform:translateY(-3px);
}

/* 栏目说明卡 */
.intro-card{
  background:linear-gradient(135deg, rgba(246,169,76,.1), rgba(35,182,166,.05));
  border-left:4px solid #F6A94C;
  border-radius:20px;
  padding:30px 34px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.intro-card .intro-label{
  font-size:13px;
  letter-spacing:2px;
  color:#b26a00;
  font-weight:600;
}
.intro-card h2{
  font-size:24px;
  color:#264250;
}
.intro-card p{
  color:var(--muted-color);
  line-height:1.9;
  max-width:760px;
}
.intro-card ul.checks{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 26px;
  margin-top:8px;
}
.intro-card ul.checks li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 16px;
  background:rgba(255,255,255,.76);
  border-radius:12px;
  border:1px solid rgba(255,255,255,.85);
  color:var(--text-color);
  font-size:14px;
}
.intro-card ul.checks i{
  color:var(--accent);
  background:rgba(35,182,166,.12);
  border-radius:50%;
  width:22px;
  height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  flex-shrink:0;
}

/* 文章信息大卡 */
.main-card{
  display:grid;
  grid-template-columns:280px 1fr;
  min-height:220px;
}
.main-card .card-img{
  position:relative;
  overflow:hidden;
  min-height:220px;
  background:#dbeaf2;
}
.main-card .card-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.main-card:hover .card-img img{transform:scale(1.04)}
.main-card .card-img .cat-tag{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
}
.card-content{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.entry-meta{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:12px;
  font-size:13px;
}
.meta-date{
  color:var(--light-muted);
  display:flex;
  align-items:center;
  gap:6px;
}
.meta-date i{color:var(--brand)}
.card-title{
  font-size:20px;
  font-weight:600;
  color:var(--title-color);
  line-height:1.4;
  margin-bottom:10px;
  display:block;
  transition:color .2s ease;
}
a.card-title:hover{color:#176E9E}
.card-excerpt{
  font-size:14px;
  color:var(--muted-color);
  line-height:1.8;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  max-width:100%;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:500;
  color:#176E9E;
  cursor:pointer;
  transition:color .2s ease;
}
.text-link i{
  transition:transform .25s ease;
  font-size:13px;
}
.text-link:hover{
  color:#0f5e8a;
}
.text-link:hover i{
  transform:translateX(4px);
}

/* 横条小卡 */
.h-card{
  display:grid;
  grid-template-columns:180px 1fr;
  min-height:140px;
}
.h-card .card-img{
  position:relative;
  min-height:140px;
  overflow:hidden;
  background:#e3edf4;
}
.h-card .card-img img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.h-card:hover .card-img img{transform:scale(1.03)}
.h-card .card-content{
  padding:22px 26px;
}
.h-card .card-title{
  font-size:18px;
  margin-bottom:8px;
}
.h-card .card-excerpt{
  -webkit-line-clamp:2;
  margin-bottom:12px;
}

/* 右侧栏 */
.category-side{
  display:flex;
  flex-direction:column;
  gap:24px;
  position:sticky;
  top:112px;
}
.side-card{
  background:#fff;
  border-radius:18px;
  box-shadow:0 6px 20px rgba(31,66,90,.05);
  border:1px solid rgba(23,110,158,.08);
  overflow:hidden;
}
.side-card.tint{
  background:linear-gradient(145deg, #f4f8fb, #eaf3f8);
}
.side-card .side-head{
  display:flex;
  align-items:center;
  gap:12px;
  padding:22px 24px 0;
}
.side-card .side-ico{
  width:38px;
  height:38px;
  background:rgba(23,110,158,.14);
  border-radius:13px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#176E9E;
  font-size:17px;
  flex-shrink:0;
}
.side-card .side-body{
  padding:22px 24px 26px;
}
.side-card h3{
  font-size:18px;
  margin-bottom:14px;
  color:#20455a;
}
.side-list li{
  padding:12px 0;
  border-bottom:1px dashed rgba(23,110,158,.1);
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14px;
}
.side-list li:last-child{border-bottom:none;padding-bottom:0}
.side-list li span{
  color:#176E9E;
  font-family:var(--font-num);
  font-weight:600;
  margin-top:1px;
}
.side-list li a{
  color:var(--text-color);
  transition:color .2s;
  line-height:1.6;
}
.side-list li a:hover{color:#176E9E}

.side-form .input-outline{
  background:#fff;
  border:1.5px solid rgba(23,110,158,.16);
  border-radius:12px;
  padding:12px 14px;
  width:100%;
  font-size:14px;
  margin-bottom:12px;
  transition:border-color .2s,box-shadow .2s;
  color:var(--title-color);
}
.side-form .input-outline:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(23,110,158,.1);
}
.side-form .select-box{
  appearance:none;
  background:#fff url("data:image/svg+xml;charset=utf8,%3Csvg aria-hidden='true' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath fill='%236B8494' d='M224 416c-8.188 0-16.38-3.125-22.62-9.375l-192-192c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0L224 338.8l169.4-169.4c12.5-12.5 32.75-12.5 45.25 0s12.5 32.75 0 45.25l-192 192C240.4 412.9 232.2 416 224 416z'/%3E%3C/svg%3E") no-repeat right 16px center/12px;
}
.notice-card{
  border-radius:16px;
  padding:20px 22px;
  background:linear-gradient(135deg,rgba(246,169,76,.18),rgba(246,169,76,.06));
  border:1px solid rgba(246,169,76,.3);
}
.notice-card .notice-title{
  font-weight:600;
  color:#8a5b16;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  margin-bottom:8px;
}
.notice-card p{
  font-size:13px;
  color:#9b6d2c;
  line-height:1.8;
}

/* 小分类标签 */
.cat-tag{
  display:inline-flex;
  align-items:center;
  gap:5px;
  background:rgba(23,110,158,.1);
  border-radius:8px;
  color:#176E9E;
  padding:5px 14px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
}
.cat-tag.warm{
  background:rgba(246,169,76,.16);
  color:#a86b1e;
}
.cat-tag.teal{
  background:rgba(35,182,166,.12);
  color:#128476;
}

/* 下部分：同分类常见问题 */
.white-panel{
  background:#fff;
  border-radius:24px;
  margin-top:40px;
  box-shadow:var(--shadow-card);
  border:1px solid rgba(23,110,158,.08);
  overflow:hidden;
  margin-bottom:32px;
}
.white-panel .panel-inner{
  padding:44px 46px;
}
.faq-grid{
  margin-top:26px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.faq-col{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  border-bottom:1px dashed rgba(23,110,158,.16);
  padding-bottom:12px;
}
.faq-item h4{
  font-size:16px;
  font-weight:600;
  color:#20455a;
  margin-bottom:6px;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.faq-item h4 i{
  color:var(--brand);
  background:rgba(23,110,158,.1);
  width:22px;
  height:22px;
  border-radius:8px;
  font-size:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.faq-item p{
  font-size:14px;
  color:var(--muted-color);
  line-height:1.8;
  margin-left:32px;
  margin-bottom:0;
}

/* 同分类最近更新 */
.update-grid{
  margin-top:28px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.update-card{
  border-radius:18px;
  background:linear-gradient(160deg,#f9fcfe,#eff6fa);
  border:1px solid rgba(23,110,158,.08);
  padding:26px;
  transition:all .25s ease;
}
.update-card:hover{
  box-shadow:var(--shadow-card-hover);
  background:#fff;
  transform:translateY(-4px);
}
.update-card .update-time{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--light-muted);
  display:block;
  margin-bottom:10px;
}
.update-card h5{
  font-size:16px;
  font-weight:600;
  color:#264250;
  margin-bottom:8px;
  line-height:1.5;
}
.update-card p{
  font-size:13px;
  color:var(--muted-color);
  margin-bottom:14px;
}
.update-card a.text-link{
  font-size:13px;
}

/* CTA 区 */
.help-cta{
  border-radius:28px;
  background:linear-gradient(135deg,#176E9E,#0f6d8c);
  box-shadow:0 18px 50px rgba(23,110,158,.2);
  padding:60px 68px;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.help-cta:before{
  content:'';position:absolute;
  right:-40px;top:-30px;
  width:240px;height:240px;
  border:44px solid rgba(255,255,255,.06);
  border-radius:50%;
}
.help-cta .cta-head{
  position:relative;
  z-index:2;
  max-width:600px;
}
.help-cta .tagline{
  font-size:13px;
  color:rgba(255,255,255,.8);
  letter-spacing:6px;
  font-weight:500;
  margin-bottom:12px;
}
.help-cta h2{
  font-size:36px;
  font-weight:700;
  color:#fff;
  line-height:1.25;
  margin-bottom:16px;
}
.help-cta p{
  color:rgba(255,255,255,.9);
  font-size:16px;
  line-height:1.8;
  margin-bottom:0;
}
.help-cta .cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:16px;
}

/* 通用 CTA 带 */
.common-cta{
  border-radius:24px;
  padding:52px 56px;
  background:
    linear-gradient(105deg, #F4F8FB 0%, #EAF3F8 55%, rgba(35,182,166,.12) 100%);
  border:1px solid rgba(23,110,158,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:30px;
}
.common-cta .title{
  font-size:24px;
  font-weight:600;
}
.common-cta .desc{
  color:var(--muted-color);
  font-size:15px;
  margin-top:6px;
  max-width:560px;
}

/* FAQ 折叠面板 */
.faq-accordion{
  margin-top:14px;
}
.faq-accordion .faq-item-card{
  background:#fff;
  border-radius:16px;
  border:1px solid rgba(23,110,158,.12);
  box-shadow:0 2px 8px rgba(31,66,90,.04);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .25s, border-color .25s;
}
.faq-accordion .faq-item-card.open{
  box-shadow:0 6px 18px rgba(23,77,101,.08);
  border-left:3px solid var(--brand);
}
.acc-question{
  display:flex;
  align-items:center;
  gap:14px;
  justify-content:space-between;
  width:100%;
  padding:20px 22px;
  cursor:pointer;
  text-align:left;
  background:transparent;
  transition:background .2s ease;
  border:none;
}
.acc-question:hover{background:rgba(23,110,158,.03)}
.acc-q-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:16px;
  font-weight:600;
  color:#264250;
}
.acc-q-title span{
  width:7px;
  height:7px;
  background:#23B6A6;
  border-radius:50%;
  display:inline-block;
  flex-shrink:0;
}
.acc-q-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  background:rgba(23,110,158,.1);
  border-radius:8px;
  color:#176E9E;
  font-size:13px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
  flex-shrink:0;
}
.faq-item-card.open .acc-q-icon{
  background:rgba(35,182,166,.2);
  color:#128476;
  transform:rotate(135deg);
}
.acc-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
  padding:0 22px;
}
.acc-answer-inner{
  padding:0 0 20px 40px;
  font-size:14px;
  color:var(--muted-color);
  line-height:1.9;
}
.faq-item-card.open .acc-answer{
  max-height:340px;
}

/* 页脚 */
.site-footer{
  background:linear-gradient(180deg,#1D405A 0%,#123141 100%);
  padding:72px 0 0;
  margin-top:90px;
  color:rgba(255,255,255,.7);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:50px;
}
.footer-inner .brand-logo .brand-name{
  color:#fff;
}
.footer-inner .brand-logo .brand-name b{
  color:#64B6D2;
}
.footer-inner .brand-logo .brand-name b:after{
  background:linear-gradient(to right,#64B6D2,#6CD2C0);
}
.footer-inner .brand-sub{
  color:rgba(255,255,255,.5);
}
.footer-inner p{
  color:rgba(255,255,255,.62);
  font-size:14px;
  margin-top:20px;
  line-height:1.9;
}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:24px;
  letter-spacing:.5px;
  position:relative;
  padding-bottom:12px;
}
.footer-title:after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:26px;height:2px;
  background:#23B6A6;
  border-radius:4px;
}
.footer-links li{
  margin-bottom:14px;
  line-height:1.4;
}
.footer-links li a{
  color:rgba(255,255,255,.68);
  font-size:14px;
  display:flex;
  gap:8px;
  align-items:center;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links li a i{
  color:rgba(255,255,255,.4);
  font-size:12px;
}
.footer-links li a:hover{
  color:#7ECDE2;
}
.footer-contact{
  display:flex;
  align-items:flex-start;
  gap:11px;
  margin-bottom:18px;
  font-size:14px;
  color:rgba(255,255,255,.65);
  line-height:1.7;
}
.footer-contact .fa-stack{
  margin-top:4px;
  color:#68C6C0;
  font-size:15px;
  width:auto;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding:22px 0;
  font-size:13px;
  color:rgba(255,255,255,.45);
}
.footer-bottom a{
  color:rgba(255,255,255,.7);
}
.footer-bottom a:hover{color:#fff}

/* 动画 */
@keyframes floatUp{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:translateY(0)}
}
.fade-up{
  animation:floatUp .6s ease both;
}

/* 响应式 */
@media (max-width:1199px){
  .desktop-nav{display:flex;justify-content:center;flex:1}
  .nav-links li a{padding:10px 10px;font-size:14px}
  .nav-links li a .long{font-size:14px}
  .category-wrap{grid-template-columns:minmax(0,1fr)}
  .category-side{
    position:relative;
    top:0;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:stretch;
  }
  .category-side .side-card{flex:1;min-width:260px}
  .common-cta{padding:42px 34px}
}
@media (max-width:991px){
  body{padding-top:0}
  .site-nav{
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);
  }
  .nav-container{
    flex-wrap:nowrap;
    gap:16px;
  }
  .desktop-nav{
    display:none;
  }
  .desktop-nav.open{
    display:flex;
    position:absolute;
    top:74px;
    left:18px;right:18px;
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(18px);
    border-radius:20px;
    box-shadow:0 20px 48px rgba(16,56,80,.24);
    padding:20px 18px;
    justify-content:stretch;
    border:1px solid rgba(255,255,255,.6);
    max-height:calc(100vh - 96px);
    overflow-y:auto;
  }
  .desktop-nav.open .nav-links{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    width:100%;
    text-align:center;
  }
  .desktop-nav.open .nav-links li a{
    padding:15px 16px;
    font-size:15px;
    justify-content:space-between;
    border-radius:12px;
  }
  .desktop-nav.open .nav-links li a.active-link:after{
    display:none;
  }
  .desktop-nav.open .nav-links li a.active-link{
    background:rgba(23,110,158,.12);
  }
  .desktop-nav.open .nav-links li a .long{display:inline}
  .desktop-nav.open .nav-links li a .short{display:none}
  .desktop-nav.open .nav-links li a .nav-icon{display:inline-flex;order:2}
  .header-cta .btn-primary-soft .text-only{display:none}
  .header-cta .btn-primary-soft{
    padding:9px 12px;
    font-size:13px;
  }
  .header-cta .btn-primary-soft i{margin-right:0}
  .mobile-toggle{
    display:flex;
  }
  .main-card{
    grid-template-columns:220px 1fr;
  }
  .h-card{
    grid-template-columns:150px 1fr;
  }
  .faq-grid,
  .update-grid{
    grid-template-columns:1fr 1fr;
  }
  .help-cta{
    padding:42px 46px;
    flex-direction:column;
    align-items:leafs;
  }
  .help-cta .cta-actions{
    align-items:flex-start;
  }
  .footer-inner{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:767px){
  body{padding-top:0}
  .section{padding:64px 0}
  .section-hero-inner{padding:36px 0 56px}
  .container{padding-left:18px;padding-right:18px}
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .section-title{font-size:28px}
  .form-row-2{grid-template-columns:1fr}
  .cate-hero{
    padding:116px 0 46px;
  }
  .cate-hero h1.cate-title{
    font-size:27px;
    line-height:1.4;
  }
  .cate-hero .hero-glow,
  .cate-hero .hero-glow-2{display:none}
  .cate-hero .breadcrumb-wrap{
    font-size:13px;
    flex-wrap:wrap;
  }
  .cate-hero-actions .btn-custom{
    width:100%;
    justify-content:center;
  }
  .category-tabs .tabs-container{
    overflow-x:auto;
    flex-wrap:nowrap;
    padding-bottom:14px;
    scrollbar-width:none;
  }
  .category-tabs .tabs-container::-webkit-scrollbar{display:none}
  .tab-item{
    flex-shrink:0;
    padding:9px 16px;
    font-size:13px;
  }
  .category-wrap{
    grid-template-columns:1fr;
  }
  .category-main{gap:16px}
  .main-card{
    grid-template-columns:1fr;
  }
  .main-card .card-img{
    height:190px;
    min-height:0;
  }
  .main-card .card-content{padding:22px 22px}
  .h-card{
    grid-template-columns:1fr;
  }
  .h-card .card-img{
    height:160px;
    min-height:0;
  }
  .h-card .card-content{padding:20px}
  .card-content{padding:22px}
  .intro-card{
    padding:24px 22px;
  }
  .intro-card ul.checks{
    grid-template-columns:1fr;
  }
  .faq-grid{
    grid-template-columns:1fr;
  }
  .update-grid{
    grid-template-columns:1fr;
  }
  .white-panel .panel-inner{
    padding:24px 20px;
  }
  .common-cta,
  .help-cta{
    padding:34px 24px;
    border-radius:20px;
  }
  .help-cta .cta-head h2{
    font-size:28px;
  }
  .help-cta .cta-actions{
    width:100%;
    align-items:stretch;
  }
  .help-cta .cta-actions .btn-custom{
    justify-content:center;
    width:100%;
  }
  .category-side{
    flex-direction:column;
  }
  .footer-inner{
    grid-template-columns:1fr;
    gap:36px;
    padding-bottom:30px;
  }
  .site-footer{
    padding-top:50px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .section-title{
    font-size:26px;
  }
  .mobile-brand-text{
    white-space:nowrap;
  }
}
@media (max-width:479px){
  .brand-name{
    white-space:normal;
  }
  .brand-sub{font-size:10px}
  .brand-mark{
    width:36px;height:36px;
  }
}

/* focus 可访问性 */
a:focus-visible,
button:focus-visible{
  outline:3px solid rgba(35,182,166,.4);
  outline-offset:2px;
  border-radius:6px;
}
.btn-custom:focus-visible{
  outline:3px solid rgba(35,182,166,.5);
}