/* roulang page: index */
:root{
  --c-main:#0F4C46;
  --c-main-dark:#0B2A26;
  --c-main-soft:#E7F1EF;
  --c-amber:#F0873A;
  --c-amber-dark:#D9742A;
  --c-indigo:#3B2E7E;
  --c-bg:#FBF9F6;
  --c-card:#FFFFFF;
  --c-line:#E6E0D4;
  --c-text:#16191B;
  --c-text-2:#6B7276;
  --c-text-3:#9AA0A3;
  --c-ok:#2E7D5B;
  --c-warn:#B4552B;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,38,.06);
  --sh-2:0 10px 24px rgba(11,42,38,.10);
  --sh-3:0 6px 18px rgba(11,42,38,.08);
  --sec-space:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
ul,ol{list-style:none;margin:0;padding:0}
a{color:var(--c-main);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-amber-dark)}
img{max-width:100%;height:auto;display:block}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-.3px;line-height:1.38}
p{margin:0 0 1.15em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec-space) 0}
.section-tint{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:16px;font-size:28px}
.sec-title::before{content:"";position:absolute;left:0;top:7px;width:4px;height:22px;border-radius:2px;background:var(--c-main)}
.sec-desc{color:var(--c-text-2);font-size:15px;margin:10px 0 0;max-width:760px}
.more-link{font-size:14.5px;font-weight:500;display:inline-flex;align-items:center;gap:8px}
.more-link i{transition:transform .2s ease}
.more-link:hover i{transform:translateX(4px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:500;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--c-amber);color:var(--c-main-dark);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--c-main);color:var(--c-main)}
.btn-outline:hover{background:var(--c-main-soft);color:var(--c-main)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px}
.btn:focus-visible{outline:2px solid var(--c-main);outline-offset:2px}
.btn-ghost:focus-visible{outline-color:#fff}

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.5px;font-weight:500;line-height:1.6}
.badge-main{background:var(--c-main-soft);color:var(--c-main)}
.badge-indigo{background:#EEECF8;color:var(--c-indigo)}
.badge-amber{background:rgba(240,135,58,.16);color:#B4571B}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,249,246,.95);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-3);background:#fff}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;transition:height .25s ease}
.site-header.is-stuck .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--c-main);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;letter-spacing:-.5px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15.5px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;white-space:nowrap}
.brand-text em{font-size:12.5px;color:var(--c-text-3);font-style:normal;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--c-text-2);border-radius:8px;white-space:nowrap;transition:color .18s ease,background-color .18s ease}
.nav-link:hover{color:var(--c-main);background:var(--c-main-soft)}
.nav-link.is-active{color:var(--c-main);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--c-main)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{position:relative;display:flex;align-items:center;gap:8px;height:38px;padding:0 10px;width:230px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);transition:border-color .18s ease,box-shadow .18s ease}
.command-search > i{color:var(--c-text-3);font-size:13px}
.command-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-text)}
.command-search input::placeholder{color:var(--c-text-3)}
.command-search:focus-within{border-color:var(--c-main);box-shadow:0 0 0 2px rgba(15,76,70,.18)}
.kbd{font-size:11.5px;color:var(--c-text-2);background:var(--c-bg);border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;line-height:1.6}
.search-suggest{
  position:absolute;top:calc(100% + 8px);left:0;right:0;padding:8px;
  background:#fff;border:1px solid var(--c-line);border-radius:12px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(-4px);transition:.18s ease;
}
.command-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:none}
.suggest-group{font-size:12px;color:var(--c-text-3);padding:6px 10px;letter-spacing:.5px}
.search-suggest a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:14.5px;color:var(--c-text)}
.search-suggest a:hover{background:var(--c-main-soft);color:var(--c-main)}
.search-suggest a i{color:var(--c-text-3);font-size:12.5px}
.quick-link{font-size:14.5px;color:var(--c-text-2);white-space:nowrap}
.quick-link:hover{color:var(--c-main)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;color:var(--c-main);cursor:pointer}
.nav-toggle:focus-visible{outline:2px solid var(--c-main);outline-offset:2px}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;padding:22px 20px 30px;
  background:var(--c-main-dark);display:flex;flex-direction:column;gap:6px;
  transform:translateY(-100%);visibility:hidden;transition:transform .3s ease,visibility .3s ease;
}
.mobile-drawer.is-open{transform:none;visibility:visible}
.mobile-drawer .drawer-close{align-self:flex-end;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;cursor:pointer;margin-bottom:10px}
.mobile-drawer .drawer-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;margin-bottom:16px}
.mobile-drawer .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;color:#fff;font-size:15px}
.mobile-drawer .drawer-search input::placeholder{color:rgba(255,255,255,.5)}
.mobile-drawer a.drawer-link{color:#fff;font-size:18px;padding:14px 2px;border-bottom:1px solid rgba(255,255,255,.1)}
.mobile-drawer a.drawer-link.is-active{color:var(--c-amber)}
.mobile-drawer .drawer-cta{margin-top:auto;width:100%}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--c-main-dark)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,42,38,.94) 0%,rgba(11,42,38,.8) 52%,rgba(11,42,38,.62) 100%)}
.hero-mesh{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:44px 44px}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;min-height:560px;padding-top:76px;padding-bottom:76px}
.hero-copy h1{color:#fff;font-size:40px;line-height:1.3;letter-spacing:-.5px;margin:18px 0 16px}
.hero-sub{color:rgba(255,255,255,.84);font-size:17px;line-height:1.85;margin:0 0 30px;max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}
.trust-row{display:flex;flex-wrap:wrap;gap:24px;margin:32px 0 0;padding:22px 0 0;border-top:1px solid rgba(255,255,255,.18)}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78)}
.trust-row i{color:var(--c-amber);font-size:14px}
.hero-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:22px}
.panel-head{display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.82);padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.14)}
.dot{width:8px;height:8px;border-radius:50%;background:#43C08A;box-shadow:0 0 0 4px rgba(67,192,138,.18);flex:0 0 auto}
.dot-idle{background:var(--c-amber);box-shadow:0 0 0 4px rgba(240,135,58,.2)}
.panel-list{margin-top:16px}
.panel-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;font-size:14px;color:rgba(255,255,255,.75);border-bottom:1px dashed rgba(255,255,255,.12)}
.panel-list li:last-child{border-bottom:0}
.panel-list b{color:#fff;font-weight:600}
.panel-cover{margin-top:16px;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.18);aspect-ratio:16/9}
.panel-cover img{width:100%;height:100%;object-fit:cover}

/* ============ 状态条 ============ */
.status-bar{background:#fff;border-bottom:1px solid var(--c-line)}
.status-inner{display:flex;flex-wrap:wrap;gap:26px;padding:16px 24px}
.status-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-text-2)}
.status-item i{color:var(--c-main);font-size:13.5px}

/* ============ 三步上手 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.steps::before{content:"";position:absolute;left:26px;right:26px;top:24px;height:1px;background:var(--c-line)}
.step{position:relative;padding-top:68px}
.step-num{
  position:absolute;top:0;left:0;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;font-size:17px;font-weight:700;color:var(--c-main);
  background:var(--c-bg);border:1px solid var(--c-main);letter-spacing:-.5px;
}
.step h3{font-size:20px;margin-bottom:10px}
.step p{color:var(--c-text-2);font-size:15.5px;margin:0 0 14px}
.step-link{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:500}
.step-link i{transition:transform .2s ease}
.step-link:hover i{transform:translateX(4px)}

/* ============ 速览列表 ============ */
.rank-table{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.rank-row{display:grid;grid-template-columns:56px 1.1fr 1.9fr 1fr;gap:22px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--c-line);transition:background-color .18s ease,box-shadow .18s ease}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-main)}
.rank-index{font-size:19px;font-weight:700;color:var(--c-text-3);letter-spacing:-.5px}
.rank-name{font-size:16.5px;font-weight:600}
.rank-name span{display:block;font-size:12.5px;font-weight:400;color:var(--c-text-3);letter-spacing:.5px;margin-top:2px}
.rank-desc{font-size:14.5px;color:var(--c-text-2)}
.rank-bar{display:flex;align-items:center;gap:12px}
.bar{flex:1;height:6px;border-radius:99px;background:var(--c-line);overflow:hidden}
.bar span{display:block;height:100%;border-radius:99px;background:var(--c-main)}
.rank-bar em{font-style:normal;font-size:13px;color:var(--c-text-3);white-space:nowrap}

/* ============ 案例图文 ============ */
.case-wrap{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.case-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:76px 0}
.case-block + .case-block{border-top:.5px solid var(--c-line)}
.case-block.is-reverse .case-text{order:2}
.case-block.is-reverse .case-media{order:1}
.case-text h3{font-size:24px;margin:14px 0 16px}
.case-text p{color:var(--c-text-2);font-size:16px}
.point-list li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--c-text-2);font-size:15.5px}
.point-list li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--c-amber)}
.case-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);aspect-ratio:16/9;box-shadow:var(--sh-1)}
.case-media img{width:100%;height:100%;object-fit:cover}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,76,70,.3)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--c-line);background:var(--c-bg)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{display:flex;flex-direction:column;flex:1;padding:20px}
.news-body h3{font-size:17.5px;line-height:1.55;margin:10px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--c-text)}
.news-body h3 a:hover{color:var(--c-main)}
.news-body p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:.5px solid var(--c-line);font-size:13px;color:var(--c-text-3)}
.read-more{font-size:13.5px;font-weight:500}
.empty-state{text-align:center;padding:56px 20px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:#fff}
.empty-state i{font-size:30px;color:var(--c-text-3)}
.empty-state p{color:var(--c-text-2);margin:14px 0 18px;font-size:15px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:56px;align-items:start}
.faq-side p{color:var(--c-text-2);font-size:15.5px}
.faq-side .side-link{display:inline-flex;align-items:center;gap:8px;font-weight:500;margin-top:6px}
.accordion{background:transparent;border:0;margin:0;border-top:1px solid var(--c-line)}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;transition:box-shadow .2s ease}
.accordion .accordion-item.is-active{box-shadow:inset 3px 0 0 var(--c-main)}
.accordion .accordion-title{
  position:relative;display:block;padding:20px 52px 20px 16px;
  font-size:17px;font-weight:600;color:var(--c-text);line-height:1.6;
  background:transparent;border:0;transition:color .18s ease;
}
.accordion .accordion-title:hover{background:transparent;color:var(--c-main)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--c-text-3);line-height:1;transition:color .18s ease,transform .18s ease;
}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-main)}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";color:var(--c-amber)}
.accordion .accordion-content{padding:0 52px 22px 16px;border:0;background:transparent;color:var(--c-text-2);font-size:16px;line-height:1.9}

/* ============ CTA ============ */
.cta-section{padding:0 0 var(--sec-space)}
.cta-band{position:relative;overflow:hidden;background:var(--c-main-dark);border-radius:18px;padding:56px;display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:40px 40px}
.cta-inner{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.76);font-size:15.5px;margin:0 0 18px}
.cta-mini{display:flex;flex-wrap:wrap;gap:22px}
.cta-mini li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78)}
.cta-mini i{color:var(--c-amber);font-size:13px}
.cta-btns{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-main-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:var(--sec-space)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-amber);color:var(--c-main-dark)}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.62);margin:0;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.68);margin-bottom:12px}
.footer-col a:hover{color:var(--c-amber);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.68);margin-bottom:12px}
.footer-contact i{color:var(--c-amber);width:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.55)}
.footer-note{padding:0 0 26px;font-size:13px;color:rgba(255,255,255,.42);line-height:1.8}

/* ============ 进入动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec-space:72px}
  .main-nav,.command-search,.quick-link{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;min-height:auto;gap:36px;padding-top:58px;padding-bottom:58px}
  .hero-copy h1{font-size:32px}
  .steps{grid-template-columns:1fr 1fr;gap:30px}
  .steps::before{display:none}
  .step{padding-top:0;padding-left:64px;min-height:96px}
  .step-num{top:2px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .case-block{grid-template-columns:1fr;gap:28px;padding:48px 0}
  .case-block.is-reverse .case-text{order:1}
  .case-block.is-reverse .case-media{order:2}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:26px}
  .cta-btns{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .rank-row{grid-template-columns:44px 1fr 1fr;gap:16px}
  .rank-desc{display:none}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 16px}
  .header-inner{height:60px}
  .brand-text em{display:none}
  .brand-text strong{font-size:14.5px;white-space:normal}
  .hero-copy h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .hero-btns .btn{flex:1 1 100%}
  .trust-row{gap:14px}
  .trust-row li{font-size:13.5px}
  .sec-title{font-size:21px}
  .sec-title::before{top:4px;height:18px}
  .section{padding:52px 0}
  .status-inner{gap:14px;padding:14px 16px}
  .status-item{font-size:13px}
  .steps{grid-template-columns:1fr;gap:0}
  .steps::before{display:block;left:23px;right:auto;top:8px;bottom:26px;width:1px;height:auto;background:var(--c-line)}
  .step{padding-left:62px;padding-bottom:26px;min-height:0}
  .case-text h3{font-size:20px}
  .news-grid{grid-template-columns:1fr}
  .rank-row{grid-template-columns:34px 1fr;gap:12px;padding:16px 18px}
  .rank-bar{display:none}
  .accordion .accordion-title{font-size:15.5px;padding:18px 44px 18px 14px}
  .accordion .accordion-content{padding:0 44px 18px 14px;font-size:15px}
  .cta-band{padding:28px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .cta-btns .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:52px}
}

/* roulang page: category1 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0B2A26;
  --primary-soft:#E9F1EF;
  --primary-light:#1C6A62;
  --accent:#F0873A;
  --accent-dark:#DB7327;
  --indigo:#3B2E7E;
  --bg:#FBF9F6;
  --card:#FFFFFF;
  --line:#E6E0D4;
  --ink:#16191B;
  --muted:#6B7276;
  --faint:#9AA0A3;
  --ok:#2E7D5B;
  --warn:#B4552B;
  --radius-lg:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,42,38,.06);
  --shadow-2:0 10px 24px rgba(11,42,38,.10);
  --shadow-3:0 6px 18px rgba(11,42,38,.08);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--accent-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:-.3px;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button{font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-dark{background:var(--primary-dark);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,249,246,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,height .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-3);}
.header-inner{
  height:68px;display:flex;align-items:center;gap:24px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(160deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:15.5px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;}
.brand-text em{font-size:12.5px;font-style:normal;color:var(--faint);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:var(--radius-sm);
  font-size:15px;color:var(--muted);font-weight:500;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:transparent;border-radius:2px;transition:background-color .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft);}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-link.is-active::after{background:var(--primary);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  height:38px;padding:0 10px 0 12px;min-width:280px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.command-search i{color:var(--faint);font-size:13px;}
.command-search input{
  border:0;outline:none;background:transparent;flex:1;height:100%;
  font-size:14px;color:var(--ink);min-width:0;
}
.command-search input::placeholder{color:var(--faint);}
.command-search .kbd{
  font-size:11.5px;color:var(--faint);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;line-height:1.5;flex:0 0 auto;
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(15,76,70,.18);}
.search-suggest{
  position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);padding:10px;opacity:0;visibility:hidden;
  transform:translateY(-4px);transition:all .18s ease;z-index:90;
}
.command-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:translateY(0);}
.suggest-group{font-size:12.5px;color:var(--faint);padding:4px 8px 8px;letter-spacing:.5px;}
.search-suggest a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--muted);
}
.search-suggest a i{color:var(--primary);font-size:13px;width:16px;text-align:center;}
.search-suggest a:hover{background:var(--primary-soft);color:var(--primary);}
.quick-link{font-size:14.5px;color:var(--muted);font-weight:500;white-space:nowrap;}
.quick-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--primary);cursor:pointer;align-items:center;justify-content:center;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#0B2A26;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-dark);color:#0B2A26;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14.5px;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.5px;font-weight:500;
  background:var(--primary-soft);color:var(--primary);
}
.badge-indigo{background:rgba(59,46,126,.10);color:var(--indigo);}
.badge-accent{background:rgba(240,135,58,.14);color:var(--accent-dark);}

/* ---------- Page hero ---------- */
.page-hero{
  padding:72px 0 84px;
  background:
    linear-gradient(180deg,rgba(15,76,70,.05) 0%,rgba(251,249,246,0) 100%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.page-hero .grid-x{align-items:center;}
.hero-copy h1{
  font-size:40px;letter-spacing:-.5px;margin:18px 0 16px;
}
.hero-copy h1 span{color:var(--primary);}
.hero-sub{font-size:18px;color:var(--muted);max-width:540px;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;}
.trust-row span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.trust-row i{color:var(--primary);font-size:13px;}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);}
.hero-visual img{width:100%;height:340px;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,38,.15) 0%,rgba(11,42,38,.68) 100%);
}
.hero-visual .visual-tag{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;
}
.hero-visual .visual-tag strong{display:block;font-size:16px;letter-spacing:-.2px;margin-bottom:4px;}
.hero-visual .visual-tag span{font-size:13.5px;color:rgba(255,255,255,.82);}

/* ---------- Intro ---------- */
.intro-text{max-width:720px;}
.intro-text p{color:var(--muted);font-size:16.5px;}
.section-head{margin-bottom:44px;}
.section-head h2{font-size:28px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;
  background:var(--primary);border-radius:2px;
}
.section-head p{margin-top:12px;color:var(--muted);max-width:720px;font-size:16px;}

/* ---------- Feature cards ---------- */
.card-row{margin-top:-12px;}
.feature-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.3);}
.feature-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:19px;margin-bottom:18px;
}
.feature-card h3{font-size:19px;margin-bottom:10px;}
.feature-card p{color:var(--muted);font-size:15.5px;margin-bottom:18px;}
.feature-card .link-more{margin-top:auto;font-size:14.5px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.feature-card .link-more i{font-size:12px;transition:transform .2s ease;}
.feature-card:hover .link-more i{transform:translateX(3px);}

/* ---------- Dark strip ---------- */
.dark-panel{
  background:var(--primary-dark);border-radius:18px;padding:52px 48px;color:#fff;
  position:relative;overflow:hidden;
}
.dark-panel::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:44px 44px;opacity:.6;pointer-events:none;
}
.dark-panel > *{position:relative;z-index:1;}
.dark-panel h2{color:#fff;font-size:26px;margin-bottom:12px;}
.dark-panel .lead{color:rgba(255,255,255,.74);max-width:640px;font-size:16px;margin-bottom:32px;}
.dark-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.dark-item{
  border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);
  padding:20px;background:rgba(255,255,255,.04);
  transition:background-color .2s ease,border-color .2s ease;
}
.dark-item:hover{background:rgba(255,255,255,.08);border-color:rgba(240,135,58,.5);}
.dark-item .num{
  font-size:13px;color:var(--accent);letter-spacing:1.5px;font-weight:700;display:block;margin-bottom:10px;
}
.dark-item strong{display:block;font-size:16px;color:#fff;margin-bottom:8px;}
.dark-item p{font-size:14.5px;color:rgba(255,255,255,.7);margin:0;line-height:1.8;}

/* ---------- Split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-1);}
.split-body h2{font-size:26px;margin:16px 0 16px;}
.split-body p{color:var(--muted);font-size:16px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink);}
.check-list li i{color:var(--accent);font-size:14px;margin-top:6px;flex:0 0 auto;}

/* ---------- Confirm list ---------- */
.confirm-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-1);
}
.confirm-list ul{display:grid;grid-template-columns:1fr 1fr;gap:18px 32px;}
.confirm-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--muted);
  padding-bottom:16px;border-bottom:.5px solid var(--line);
}
.confirm-list li:nth-last-child(-n+2){border-bottom:0;padding-bottom:0;}
.confirm-list li b{color:var(--ink);font-weight:600;display:block;margin-bottom:2px;}
.confirm-list li i{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--primary-soft);
  color:var(--primary);font-size:11px;display:flex;align-items:center;justify-content:center;margin-top:5px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary-dark);border-radius:18px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:40px 40px;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.75);font-size:15.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:72px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-size:16px;letter-spacing:-.2px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col a{display:block;color:rgba(255,255,255,.72);font-size:14.5px;padding:6px 0;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.72);padding:6px 0;}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:6px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-note{
  margin-top:16px;font-size:13px;color:rgba(255,255,255,.45);line-height:1.9;
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .hero-copy h1{font-size:32px;}
  .brand-text em{display:none;}
  .command-search{min-width:200px;}
  .main-nav{margin-left:0;gap:2px;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
  .dark-grid{grid-template-columns:repeat(2,1fr);}
  .split{gap:36px;}
  .split-media img{height:300px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .main-nav{
    display:none;position:fixed;top:0;left:0;right:0;bottom:0;
    background:var(--primary-dark);padding:88px 24px 32px;flex-direction:column;
    align-items:flex-start;gap:24px;z-index:85;overflow-y:auto;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .nav-link{color:rgba(255,255,255,.86);font-size:18px;padding:0;width:100%;}
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{color:var(--accent);}
  .main-nav .nav-link:hover{background:transparent;color:#fff;}
  .nav-toggle{display:flex;width:44px;height:44px;position:relative;z-index:90;}
  .command-search,.quick-link{display:none;}
  .hero-copy h1{font-size:28px;}
  .hero-sub{font-size:16.5px;}
  .hero-visual img{height:250px;}
  .split{grid-template-columns:1fr;}
  .split.reverse .split-media{order:0;}
  .confirm-list ul{grid-template-columns:1fr;}
  .confirm-list li:nth-last-child(-n+2){border-bottom:.5px solid var(--line);padding-bottom:16px;}
  .confirm-list li:last-child{border-bottom:0;padding-bottom:0;}
  .dark-panel{padding:36px 24px;border-radius:14px;}
  .section-head h2{font-size:22px;}
  .split-body h2{font-size:21px;}
  .cta-band h2{font-size:21px;}
  .cta-band p{font-size:15px;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .hero-copy h1{font-size:26px;letter-spacing:-.4px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-visual img{height:210px;}
  .dark-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{height:48px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .confirm-list{padding:22px 18px;}
}

/* roulang page: article */
:root{
  --brand:#0F4C46;
  --brand-deep:#0B2A26;
  --brand-soft:rgba(15,76,70,.06);
  --accent:#F0873A;
  --accent-dark:#DE7326;
  --indigo:#3B2E7E;
  --bg:#FBF9F6;
  --card:#FFFFFF;
  --line:#E6E0D4;
  --text:#16191B;
  --text-2:#6B7276;
  --text-3:#9AA0A3;
  --success:#2E7D5B;
  --warn:#B4552B;
  --radius-lg:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(11,42,38,.06);
  --shadow-2:0 10px 24px rgba(11,42,38,.10);
  --shadow-3:0 6px 18px rgba(11,42,38,.08);
  --font: "PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover,a:focus{color:var(--accent-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol,dl{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6,p{margin:0}
p{line-height:1.9}
::selection{background:rgba(240,135,58,.28)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--accent);color:var(--brand-deep);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-dark);color:#10231f;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,249,246,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,height .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-3)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15.5px;font-weight:700;color:var(--text);letter-spacing:-.2px}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:9px 12px;border-radius:8px;
  font-size:15px;color:var(--text-2);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}

.command-search{
  position:relative;display:flex;align-items:center;gap:9px;
  width:270px;height:38px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search i{color:var(--text-3);font-size:14px}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,76,70,.18)}
.kbd{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);
  border-radius:6px;padding:1px 7px;line-height:1.5;flex:0 0 auto;
}
.search-suggest{
  position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:90;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-2);padding:10px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.command-search:focus-within .search-suggest,
.command-search:hover .search-suggest{opacity:1;visibility:visible;transform:translateY(0)}
.suggest-group{font-size:12.5px;letter-spacing:.5px;color:var(--text-3);padding:6px 8px}
.search-suggest a{
  display:flex;align-items:center;gap:9px;padding:8px;border-radius:8px;
  font-size:14px;color:var(--text-2);
}
.search-suggest a:hover{background:var(--brand-soft);color:var(--brand)}
.search-suggest a i{width:16px;text-align:center;color:var(--brand);font-size:13px}
.quick-link{font-size:14px;color:var(--text-2)}
.quick-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;font-size:17px;color:var(--brand);
  border:1px solid var(--line);background:#fff;
}

/* ---------- article head ---------- */
.article-head{
  background:
    linear-gradient(180deg,rgba(15,76,70,.05),rgba(251,249,246,0)),
    radial-gradient(circle at 88% 12%,rgba(240,135,58,.12),transparent 46%);
  border-bottom:1px solid var(--line);
  padding:38px 0 42px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:#cfc7b6}
.crumb-cat{color:var(--brand);font-weight:600}
.crumb-current{color:var(--text-2);max-width:640px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;letter-spacing:.5px;font-weight:600;
  background:rgba(15,76,70,.09);color:var(--brand);
}
.badge-indigo{background:rgba(59,46,126,.10);color:var(--indigo)}
.article-title{
  font-size:38px;line-height:1.35;font-weight:700;letter-spacing:-.5px;
  color:var(--text);max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px;
  font-size:14px;color:var(--text-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand);font-size:13px}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 24px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-main{max-width:780px}
.article-cover{
  margin:0 0 30px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

.callout{
  border-radius:var(--radius-sm);padding:18px 20px;margin:0 0 30px;
  background:#F2F6F4;border:1px solid #DDE7E3;border-left:3px solid var(--brand);
}
.note-callout strong{display:block;font-size:15px;color:var(--brand);margin-bottom:4px}
.note-callout p{font-size:14.5px;color:var(--text-2);line-height:1.85}

.article-body{font-size:16.5px;line-height:1.95;color:#22262A}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;font-size:25px;line-height:1.5;font-weight:700;color:var(--text);
  margin:40px 0 16px;padding-left:15px;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--text);margin:30px 0 12px;scroll-margin-top:96px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:4px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:9px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;
  background:var(--brand);border-radius:2px;
}
.article-body ol{counter-reset:num}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:9px;counter-increment:num}
.article-body ol li::before{
  content:counter(num);position:absolute;left:0;top:.45em;
  width:19px;height:19px;border-radius:6px;background:rgba(15,76,70,.1);
  color:var(--brand);font-size:12px;font-weight:700;line-height:19px;text-align:center;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:#F2F6F4;border-left:3px solid var(--brand);color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-lg);border:1px solid var(--line);margin:26px 0}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13.5px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-dark)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:#F5F2EB;font-weight:600;color:var(--text)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body strong{font-weight:600;color:var(--text)}
.article-body code{
  background:#F1EEE7;border-radius:6px;padding:2px 6px;font-size:14px;color:#8A4A22;
}

.empty-state{
  text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed #D8D1C2;border-radius:var(--radius-lg);
}
.empty-state i{font-size:34px;color:var(--text-3)}
.empty-state h2{font-size:21px;margin:16px 0 8px;color:var(--text)}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:24px}

.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:44px 0 0;
  padding-top:28px;border-top:1px solid var(--line);
}
.post-nav-item{
  display:flex;flex-direction:column;gap:6px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.3)}
.post-nav-item span{font-size:12.5px;color:var(--text-3);letter-spacing:.5px}
.post-nav-item strong{font-size:15.5px;color:var(--text);font-weight:600}
.back-cat{margin-top:22px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-title{
  font-size:15px;font-weight:700;color:var(--text);
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--accent)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;
  color:var(--text-2);line-height:1.6;
}
.toc-link:hover{background:var(--brand-soft);color:var(--brand)}
.toc-empty{font-size:13.5px;color:var(--text-3);line-height:1.8}
.side-post{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px;border-radius:10px;margin-bottom:4px;
}
.side-post:hover{background:var(--brand-soft)}
.side-post img{width:74px;height:52px;object-fit:cover;border-radius:8px;border:1px solid var(--line);flex:0 0 auto}
.side-post span{font-size:14px;color:var(--text);font-weight:600;line-height:1.6;display:block}
.side-post em{font-style:normal;font-size:12.5px;color:var(--text-3);display:block;margin-top:2px}

/* ---------- related ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{
  position:relative;font-size:25px;font-weight:700;color:var(--text);
  padding-left:15px;letter-spacing:-.3px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand);
}
.section-sub{font-size:14.5px;color:var(--text-2);margin-top:8px}
.rec-grid{margin:0 -12px}
.rec-grid>.cell{padding:0 12px;margin-bottom:24px}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.3)}
.post-card-img{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.post-card-img img{width:100%;height:100%;object-fit:cover}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card .badge{margin-bottom:12px;align-self:flex-start}
.post-card h3{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--text);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);padding-top:14px;border-top:1px solid var(--line);
}
.post-card-foot .more{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.post-card-foot .more i{font-size:11px;transition:transform .18s ease}
.post-card:hover .more i{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-wrap{padding:72px 0 84px}
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  background:var(--brand-deep);color:#fff;padding:52px 48px;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{font-size:27px;font-weight:700;line-height:1.45;letter-spacing:-.3px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);margin-top:12px;line-height:1.85}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px}
.cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.cta-points i{color:var(--accent);font-size:13px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:26px;bottom:30px;z-index:70;
  width:44px;height:44px;border-radius:12px;
  background:var(--brand);color:#fff;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.back-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--brand-deep);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:60px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:var(--brand-deep);width:32px;height:32px;font-size:15px}
.footer-brand strong{font-size:15.5px;color:#fff;font-weight:700}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{font-size:14.5px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.4px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:6px 0;
}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;padding:6px 0;color:rgba(255,255,255,.72)}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:12.5px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-note{
  margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);line-height:1.8;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .header-inner{height:62px;gap:14px}
  .brand-text em{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:62px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:var(--brand-deep);
    padding:22px 20px 40px;margin:0;overflow-y:auto;
    display:none;
  }
  .main-nav.open{display:flex}
  .nav-link{color:rgba(255,255,255,.86);font-size:17px;padding:14px 10px;border-radius:10px}
  .nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
  .nav-link.is-active{color:#fff;font-weight:600;background:rgba(255,255,255,.08)}
  .nav-link.is-active::after{display:none}
  .command-search{display:none}
  .nav-toggle{display:inline-flex}
  .article-head{padding:28px 0 32px}
  .article-title{font-size:30px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-main{max-width:none}
  .article-side{position:static}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:40px 32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .article-head{padding:22px 0 26px}
  .article-title{font-size:26px}
  .article-head .head-badges{margin-bottom:12px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17px}
  .article-wrap{padding:38px 0 16px}
  .section-title{font-size:21px}
  .section-head{flex-direction:column;align-items:flex-start}
  .post-nav{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:14px}
  .cta-band h2{font-size:22px}
  .btn{width:100%;padding:0 20px}
  .btn-sm{width:auto}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .related{padding:48px 0 0}
  .cta-wrap{padding:48px 0 60px}
  .back-top{right:16px;bottom:20px}
}
@media (min-width:640px) and (max-width:1023px){
  .cell.medium-6{width:50%}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F4C46;
  --c-primary-dark:#0B2A26;
  --c-primary-soft:#E7F0EE;
  --c-accent:#F0873A;
  --c-accent-dark:#E0762B;
  --c-indigo:#3B2E7E;
  --c-bg:#FBF9F6;
  --c-card:#FFFFFF;
  --c-line:#E6E0D4;
  --c-text:#16191B;
  --c-text-2:#6B7276;
  --c-text-3:#9AA0A3;
  --c-ok:#2E7D5B;
  --c-warn:#B4552B;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,38,.06);
  --sh-2:0 10px 24px rgba(11,42,38,.10);
  --sh-3:0 6px 18px rgba(11,42,38,.08);
  --sp-section:96px;
  --font: "PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent-dark);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:600;letter-spacing:-.2px;}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
h2+p,h3+p{margin-top:14px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-section) 0;}
.section--plain{background:var(--c-bg);}
.section--white{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.5px;font-weight:500;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-title{font-size:28px;line-height:1.35;position:relative;padding-left:16px;margin-bottom:14px;}
.section-title::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:22px;
  border-radius:2px;background:var(--c-primary);
}
.section-desc{color:var(--c-text-2);font-size:16.5px;line-height:1.9;max-width:720px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(251,249,246,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3);}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:15.5px;color:var(--c-text);font-weight:700;}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--c-text-3);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;padding:8px 13px;border-radius:8px;
  font-size:15px;color:var(--c-text-2);font-weight:500;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.command-search{position:relative;width:250px;}
.command-search > i{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--c-text-3);pointer-events:none;
}
.command-search input{
  width:100%;height:38px;padding:0 42px 0 34px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-text);font-size:14px;
  outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search input:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(15,76,70,.18);
}
.kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  min-width:20px;height:20px;padding:0 5px;
  border:1px solid var(--c-line);border-radius:6px;
  background:#FBF9F6;color:var(--c-text-3);
  font-size:11.5px;line-height:18px;text-align:center;
}
.search-suggest{
  position:absolute;top:calc(100% + 10px);left:0;width:330px;
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  box-shadow:var(--sh-2);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  z-index:95;
}
.command-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:none;}
.suggest-group{font-size:12.5px;color:var(--c-text-3);padding:6px 10px;letter-spacing:.3px;}
.search-suggest a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;
  font-size:14px;color:var(--c-text-2);
}
.search-suggest a i{color:var(--c-primary);font-size:13px;width:16px;text-align:center;}
.search-suggest a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.quick-link{font-size:14px;font-weight:500;color:var(--c-primary);white-space:nowrap;}
.quick-link:hover{text-decoration:underline;text-underline-offset:4px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-accent);color:var(--c-primary-dark);}
.btn-primary:hover{background:var(--c-accent-dark);color:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:#F1F6F5;color:var(--c-primary);}
.btn-outline:active{transform:translateY(1px);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn:focus-visible,a:focus-visible,input:focus-visible,button:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  border-radius:10px;background:#fff;color:var(--c-primary);
  align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:#0B2A26 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,38,.74),rgba(11,42,38,.64));
}
.page-hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:64px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:20px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.breadcrumb i{font-size:10px;opacity:.7;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(240,135,58,.18);color:#F6BC8D;
  font-size:12.5px;letter-spacing:.5px;margin-bottom:18px;
}
.hero-badge::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);display:inline-block;
}
.page-hero h1{
  font-size:40px;line-height:1.28;letter-spacing:-.5px;color:#fff;
  max-width:780px;margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.84);
  max-width:660px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-meta span{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:rgba(255,255,255,.78);
}
.hero-meta i{color:var(--c-accent);font-size:13px;}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:52px;align-items:center;}
.intro-text{max-width:720px;}
.intro-text p{font-size:16.5px;line-height:1.95;color:var(--c-text-2);}
.intro-text strong{color:var(--c-text);font-weight:600;}
.intro-figure{
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
.intro-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.intro-figure figcaption{
  padding:12px 16px;font-size:13.5px;color:var(--c-text-3);
  border-top:1px solid var(--c-line);background:#fff;
}

/* ---------- Guide layout ---------- */
.guide-layout{display:grid;grid-template-columns:252px 1fr;gap:48px;align-items:start;}
.anchor-nav{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.anchor-nav h3{font-size:15px;margin-bottom:12px;color:var(--c-text);}
.anchor-nav ul{display:flex;flex-direction:column;gap:2px;}
.anchor-nav a{
  display:block;padding:9px 12px;border-radius:8px;
  border-left:2px solid transparent;
  font-size:14.5px;color:var(--c-text-2);line-height:1.5;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.anchor-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary);}
.anchor-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);
  font-size:13.5px;line-height:1.8;color:var(--c-text-3);
}
.step-list{padding-left:22px;}
.step-item{
  position:relative;display:grid;grid-template-columns:62px 1fr;gap:18px;
  padding:28px 0;border-bottom:1px solid var(--c-line);
  transition:background .18s ease;
}
.step-item:first-child{padding-top:6px;}
.step-item:last-child{border-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:-22px;top:30px;bottom:30px;width:3px;
  border-radius:3px;background:var(--c-primary);
  opacity:0;transform:scaleY(.35);transform-origin:top;
  transition:opacity .2s ease,transform .2s ease;
}
.step-item:hover::before{opacity:1;transform:scaleY(1);}
.step-num{
  font-size:24px;font-weight:700;color:var(--c-primary);
  line-height:1.2;letter-spacing:-.5px;
  padding-top:2px;
}
.step-body h3{font-size:20px;line-height:1.5;margin-bottom:10px;}
.step-body p{font-size:16px;line-height:1.9;color:var(--c-text-2);margin-bottom:10px;}
.step-body p:last-of-type{margin-bottom:14px;}
.inline-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:500;color:var(--c-primary);
}
.inline-link i{font-size:12px;transition:transform .18s ease;}
.inline-link:hover i{transform:translateX(3px);}

/* ---------- Checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.check-card{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.check-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(15,76,70,.3);}
.check-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.check-card h3{font-size:17px;margin-bottom:6px;}
.check-card p{font-size:15px;line-height:1.85;color:var(--c-text-2);margin:0;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:52px;align-items:start;}
.faq-aside p{color:var(--c-text-2);font-size:16px;line-height:1.9;}
.faq-aside .aside-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);margin-top:8px;
}
.faq-aside .aside-card strong{display:block;font-size:15.5px;margin-bottom:8px;}
.faq-aside .aside-card span{font-size:14px;color:var(--c-text-2);line-height:1.8;display:block;}
.faq-accordion{margin:0;background:transparent;border:0;border-top:1px solid var(--c-line);}
.faq-accordion .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:#fff;}
.faq-accordion .accordion-title{
  position:relative;display:block;
  padding:21px 52px 21px 20px;
  font-size:17px;font-weight:600;color:var(--c-text);
  background:#fff;border:0;line-height:1.6;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.faq-accordion .accordion-title:hover{background:#F7F4EF;color:var(--c-primary);}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;
  transform:translateY(-50%);font-size:20px;font-weight:400;color:var(--c-primary);
  transition:transform .18s ease;
}
.faq-accordion .is-active > .accordion-title{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);}
.faq-accordion .is-active > .accordion-title::before{content:"−";}
.faq-accordion .accordion-content{
  padding:0 22px 22px;background:#fff;border:0;
  font-size:16px;line-height:1.9;color:var(--c-text-2);
}
[data-accordion] .accordion-content{display:none;}
.accordion-item.is-active > .accordion-content{display:block;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-dark);color:#fff;border-radius:18px;
  padding:52px;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:32px 32px;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:28px;line-height:1.4;color:#fff;margin-bottom:14px;}
.cta-band p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);margin-bottom:16px;}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;}
.cta-points span{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;color:rgba(255,255,255,.85);}
.cta-points i{color:var(--c-accent);font-size:13px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.76);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark);}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-col p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.7);margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.footer-col a{display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:rgba(255,255,255,.72);padding:6px 0;line-height:1.7;
}
.footer-contact i{color:var(--c-accent);font-size:13px;margin-top:6px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:14px;line-height:1.8;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .nav-toggle{display:inline-flex;}
  .command-search,.quick-link{display:none;}
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:92px 28px 32px;
    background:var(--c-primary-dark);
    transform:translateX(100%);transition:transform .28s ease;
    z-index:120;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:none;}
  .main-nav .nav-link{
    color:#fff;font-size:18px;font-weight:500;
    padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);
    border-radius:0;background:transparent;
  }
  .main-nav .nav-link:hover{background:transparent;color:var(--c-accent);}
  .main-nav .nav-link.is-active{color:var(--c-accent);}
  .main-nav .nav-link.is-active::after{display:none;}
  .header-inner{height:64px;gap:16px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .page-hero h1{font-size:32px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .guide-layout{grid-template-columns:1fr;gap:32px;}
  .anchor-nav{position:static;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section-title{font-size:24px;}
}
@media (max-width:640px){
  :root{--sp-section:52px;}
  .container{padding:0 16px;}
  body{font-size:16px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:14.5px;}
  .btn-sm{padding:0 14px;}
  .page-hero .container{padding-top:44px;padding-bottom:48px;}
  .page-hero h1{font-size:26px;letter-spacing:-.3px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:14px;flex-direction:column;}
  .section-title{font-size:21px;}
  .section-title::before{height:18px;top:5px;}
  .section-desc{font-size:15.5px;}
  .check-grid{grid-template-columns:1fr;}
  .step-list{padding-left:0;}
  .step-item{grid-template-columns:1fr;gap:8px;padding:24px 0;}
  .step-item::before{display:none;}
  .step-num{font-size:20px;}
  .step-body h3{font-size:17px;}
  .faq-accordion .accordion-title{font-size:16px;padding:18px 46px 18px 16px;}
  .cta-band{padding:28px 20px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --brand:#0F4C46;
  --brand-dark:#0B2A26;
  --brand-soft:#E8F1EF;
  --accent:#F0873A;
  --accent-dark:#D9722A;
  --indigo:#3B2E7E;
  --bg:#FBF9F6;
  --card:#FFFFFF;
  --line:#E6E0D4;
  --text:#16191B;
  --muted:#6B7276;
  --soft:#9AA0A3;
  --ok:#2E7D5B;
  --warn:#B4552B;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(11,42,38,.06);
  --sh2:0 10px 24px rgba(11,42,38,.10);
  --sh3:0 6px 18px rgba(11,42,38,.08);
  --container:1200px;
  --space:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{color:var(--text);font-weight:700;letter-spacing:-.4px;margin:0;}
h1{font-size:40px;line-height:1.28;}
h2{font-size:28px;line-height:1.35;position:relative;}
h3{font-size:20px;line-height:1.45;}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space) 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--brand);}
.section-head p{margin:10px 0 0;color:var(--muted);font-size:15px;max-width:640px;}
.lead{color:var(--muted);font-size:17px;}
.text-link{font-size:15px;font-weight:500;color:var(--brand);border-bottom:1px solid rgba(15,76,70,.25);padding-bottom:2px;}
.text-link:hover{border-bottom-color:var(--brand);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-sm);
  font-size:16px;font-weight:500;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  text-align:center;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--accent);color:var(--brand-dark);box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;box-shadow:var(--sh2);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh1);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-ghost:active{transform:translateY(1px);}
.btn-invert{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-invert:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.5px;font-weight:500;
  background:var(--brand-soft);color:var(--brand);white-space:nowrap;
}
.badge-indigo{background:rgba(59,46,126,.10);color:var(--indigo);}
.badge-accent{background:rgba(240,135,58,.16);color:#A9551A;}
.badge-ok{background:rgba(46,125,91,.12);color:var(--ok);}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,249,246,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh3);background:#fff;}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--soft);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;
  font-size:15px;color:var(--muted);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.command-search{position:relative;display:flex;align-items:center;}
.command-search > i{position:absolute;left:12px;color:var(--soft);font-size:13px;pointer-events:none;}
.command-search input{
  width:236px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--text);
  padding:0 46px 0 34px;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search input::placeholder{color:var(--soft);}
.command-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,76,70,.16);}
.kbd{
  position:absolute;right:10px;font-size:11px;color:var(--soft);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#FBF9F6;
}
.search-suggest{
  position:absolute;top:calc(100% + 8px);left:0;width:300px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh2);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;z-index:90;
}
.command-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:translateY(0);}
.suggest-group{font-size:12px;color:var(--soft);letter-spacing:.5px;padding:6px 8px;}
.search-suggest a{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:8px;font-size:14px;color:var(--muted);}
.search-suggest a i{color:var(--brand);width:16px;text-align:center;}
.search-suggest a:hover{background:var(--brand-soft);color:var(--brand-dark);}
.quick-link{font-size:14.5px;color:var(--muted);font-weight:500;white-space:nowrap;}
.quick-link:hover{color:var(--brand);border-bottom:1px solid var(--brand);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);}

/* mobile drawer */
.nav-drawer{
  display:none;position:fixed;inset:0;z-index:95;background:var(--brand-dark);color:#fff;
  padding:26px 22px 34px;overflow-y:auto;
}
.nav-drawer.is-open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#fff;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:18px;cursor:pointer;}
.drawer-search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-sm);padding:0 12px;height:44px;margin-bottom:24px;}
.drawer-search i{color:rgba(255,255,255,.7);}
.drawer-search input{flex:1;background:transparent;border:0;color:#fff;height:100%;font-size:15px;}
.drawer-search input::placeholder{color:rgba(255,255,255,.55);}
.drawer-search input:focus{outline:none;}
.drawer-nav a{display:block;font-size:18px;line-height:1.5;padding:14px 0;color:rgba(255,255,255,.86);border-bottom:1px solid rgba(255,255,255,.12);}
.drawer-nav a.is-active{color:#fff;font-weight:600;}
.drawer-nav a:hover{color:var(--accent);}
.drawer-cta{margin-top:28px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-dark);}
.hero-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,42,38,.72),rgba(11,42,38,.62));}
.hero-inner{position:relative;z-index:2;padding:88px 0 76px;color:#fff;}
.hero-grid{display:flex;align-items:center;gap:56px;}
.hero-copy{flex:1 1 60%;min-width:0;}
.hero-copy .badge{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22);}
.hero h1{color:#fff;margin:20px 0 16px;font-size:42px;}
.hero-sub{color:rgba(255,255,255,.82);font-size:18px;line-height:1.8;max-width:600px;margin-bottom:30px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-visual{flex:0 0 360px;}
.hero-card{
  background:rgba(255,255,255,.96);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh2);
  border:1px solid rgba(255,255,255,.5);
}
.hero-card h3{font-size:16px;margin-bottom:14px;}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.status-row:last-child{border-bottom:0;padding-bottom:0;}
.status-row span{color:var(--muted);}
.status-row strong{color:var(--text);font-weight:600;font-size:14px;}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);margin-right:6px;vertical-align:middle;}
.dot-warn{background:var(--accent);}
.crumbs{position:relative;z-index:2;padding-top:22px;font-size:14px;color:rgba(255,255,255,.72);}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs i{margin:0 8px;font-size:11px;opacity:.7;}

/* ---------- intro ---------- */
.intro-box{max-width:720px;}
.intro-box p{color:var(--muted);font-size:17px;line-height:1.95;margin-bottom:1.15em;}
.intro-box p strong{color:var(--text);font-weight:600;}
.intro-media{margin-top:8px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);}
.intro-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.stat-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:rgba(15,76,70,.3);}
.stat-card .stat-num{font-size:26px;font-weight:700;color:var(--brand);letter-spacing:-.5px;}
.stat-card .stat-label{font-size:15px;font-weight:600;margin:6px 0 6px;}
.stat-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:6px;}
.timeline::before{
  content:"";position:absolute;left:32px;top:10px;bottom:10px;width:1px;background:var(--line);
}
.tl-item{position:relative;display:flex;gap:26px;padding:0 0 22px;}
.tl-axis{flex:0 0 66px;display:flex;flex-direction:column;align-items:center;padding-top:22px;}
.tl-index{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;color:var(--brand);
  position:relative;z-index:2;letter-spacing:0;
}
.tl-item:hover .tl-index{background:var(--brand);color:#fff;border-color:var(--brand);}
.tl-body{
  flex:1 1 auto;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.tl-body:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:rgba(15,76,70,.28);}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.tl-head h3{font-size:18px;margin:0;}
.tl-body p{color:var(--muted);font-size:15.5px;line-height:1.85;margin:0 0 10px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:var(--muted);border-top:1px dashed var(--line);padding-top:12px;}
.tl-meta b{color:var(--text);font-weight:600;}

/* ---------- figure block ---------- */
.split{display:flex;align-items:center;gap:52px;}
.split-media{flex:1 1 46%;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh1);}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.split-body{flex:1 1 54%;min-width:0;}
.split-body h2{margin-bottom:16px;padding-left:16px;}
.split-body h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--brand);}
.split-body p{color:var(--muted);font-size:16.5px;}
.check-list{margin-top:18px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15.5px;color:var(--muted);line-height:1.8;}
.check-list li i{color:var(--brand);margin-top:6px;font-size:13px;}

/* ---------- faq ---------- */
.faq-layout{display:flex;gap:52px;align-items:flex-start;}
.faq-aside{flex:0 0 32%;}
.faq-aside h2{padding-left:16px;margin-bottom:16px;}
.faq-aside h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--brand);}
.faq-aside p{color:var(--muted);font-size:15.5px;}
.faq-aside .contact-box{
  margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh1);
}
.faq-aside .contact-box strong{display:block;font-size:15px;margin-bottom:6px;}
.faq-aside .contact-box p{font-size:14px;margin:0 0 12px;}
.faq-main{flex:1 1 68%;min-width:0;}
.faq-main .accordion{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;overflow:hidden;box-shadow:var(--sh1);}
.faq-main .accordion-item{border-bottom:1px solid var(--line);position:relative;}
.faq-main .accordion-item:last-child{border-bottom:0;}
.faq-main .accordion-item.is-active::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.faq-main .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 22px;font-size:17px;font-weight:600;color:var(--text);
  border:0;background:#fff;transition:background-color .18s ease;
}
.faq-main .accordion-title:hover{background:#FBF9F6;}
.faq-main .accordion-title:focus{outline:2px solid rgba(15,76,70,.35);outline-offset:-2px;}
.faq-main .accordion-title::before{display:none;}
.faq-main .accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand);transition:transform .18s ease;flex:0 0 auto;
}
.faq-main .accordion-item.is-active .accordion-title::after{content:"\f068";transform:rotate(180deg);}
.faq-main .accordion-content{padding:0 22px 22px;font-size:16px;line-height:1.9;color:var(--muted);border:0;background:#fff;}
.faq-main .accordion-content p{margin:0;}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-dark);border-radius:18px;color:#fff;padding:48px;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:32px 32px;opacity:.5;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;gap:48px;justify-content:space-between;}
.cta-copy{max-width:620px;}
.cta-copy h2{color:#fff;font-size:26px;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.8);font-size:16px;margin-bottom:16px;}
.cta-list{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14.5px;color:rgba(255,255,255,.85);}
.cta-list i{color:var(--accent);margin-right:8px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;min-width:200px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);margin-top:var(--space);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.3px;}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.72);padding:6px 0;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;}
.footer-contact li{font-size:14.5px;color:rgba(255,255,255,.72);padding:6px 0;display:flex;gap:10px;align-items:flex-start;}
.footer-contact li i{color:var(--accent);margin-top:6px;font-size:13px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:20px;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);line-height:1.8;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space:72px;}
  h1{font-size:32px;}
  .hero h1{font-size:34px;}
  h2{font-size:24px;}
  .main-nav{display:none;}
  .command-search,.quick-link{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{flex-direction:column;align-items:flex-start;gap:36px;}
  .hero-visual{flex:1 1 auto;width:100%;}
  .hero-card{width:100%;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .split{flex-direction:column;gap:32px;}
  .split-media{flex:1 1 auto;width:100%;}
  .faq-layout{flex-direction:column;gap:32px;}
  .faq-aside,.faq-main{flex:1 1 auto;width:100%;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-actions{width:100%;flex-direction:row;flex-wrap:wrap;}
  .cta-actions .btn{flex:1 1 180px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  :root{--space:52px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  h1{font-size:26px;}
  .hero h1{font-size:27px;}
  .hero-sub{font-size:16px;}
  h2{font-size:21px;}
  h3{font-size:17px;}
  .hero-inner{padding:56px 0 52px;}
  .stat-strip{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .timeline::before{left:18px;}
  .tl-item{gap:16px;}
  .tl-axis{flex:0 0 38px;padding-top:20px;}
  .tl-index{width:36px;height:36px;font-size:14px;}
  .tl-body{padding:18px;}
  .cta-band{padding:30px 22px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
}
@media (max-width:400px){
  .brand-text strong{font-size:15px;}
  .brand-text em{display:none;}
}
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease;}
.fade-up.is-visible{opacity:1;transform:translateY(0);}

/* roulang page: category4 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0B2A26;
  --primary-soft:rgba(15,76,70,.08);
  --accent:#F0873A;
  --accent-dark:#DD7628;
  --indigo:#3B2E7E;
  --bg:#FBF9F6;
  --card:#FFFFFF;
  --line:#E6E0D4;
  --text:#16191B;
  --text-2:#6B7276;
  --text-3:#9AA0A3;
  --ok:#2E7D5B;
  --warn:#B4552B;
  --radius-lg:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(11,42,38,.06);
  --shadow-2:0 10px 24px rgba(11,42,38,.10);
  --shadow-nav:0 6px 18px rgba(11,42,38,.08);
  --container:1200px;
  --gap-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--text);margin:0 0 12px;font-weight:600;letter-spacing:-.3px}
h1{font-size:40px;line-height:1.28;letter-spacing:-.5px}
h2{font-size:28px;line-height:1.38}
h3{font-size:20px;line-height:1.5}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
button{font-family:inherit}
input,button,select,textarea{font-family:inherit;font-size:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--gap-section) 0}
.section-tight{padding:56px 0}
.section-alt{background:#F5F1EA}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{position:relative;padding-left:16px;margin-bottom:12px}
.section-head h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--primary)}
.section-head p{margin:0;color:var(--text-2);font-size:16px}
.grid-texture{background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:34px 34px}
.cell{min-width:0}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:120;background:rgba(251,249,246,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease,background .22s ease}
.site-header.is-scrolled{background:rgba(255,255,255,.98);box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:var(--radius-sm);background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;font-size:19px;letter-spacing:0}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15.5px;font-weight:700;color:var(--text)}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;white-space:nowrap;transition:background .18s ease,color .18s ease}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)}
.mobile-search{display:none}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.command-search{position:relative;display:flex;align-items:center;gap:8px;width:268px;height:38px;padding:0 10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:border-color .18s ease,box-shadow .18s ease}
.command-search>i{color:var(--text-3);font-size:13.5px}
.command-search input{flex:1;min-width:0;height:100%;border:0;outline:0;background:transparent;font-size:14px;color:var(--text)}
.command-search input::placeholder{color:var(--text-3)}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(15,76,70,.16)}
.kbd{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;border:1px solid var(--line);border-radius:6px;font-size:11.5px;color:var(--text-3);background:#FBF9F6}
.search-suggest{position:absolute;top:calc(100% + 8px);left:0;right:0;padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:30}
.command-search:focus-within .search-suggest{opacity:1;visibility:visible;transform:translateY(0)}
.suggest-group{font-size:12px;letter-spacing:.5px;color:var(--text-3);padding:4px 8px 6px}
.search-suggest a{display:flex;align-items:center;gap:8px;padding:8px;border-radius:8px;font-size:14px;color:var(--text-2)}
.search-suggest a i{color:var(--primary);font-size:13px}
.search-suggest a:hover{background:var(--primary-soft);color:var(--primary)}
.quick-link{font-size:14.5px;color:var(--text-2);white-space:nowrap}
.quick-link:hover{color:var(--primary)}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--primary);font-size:17px;cursor:pointer}
.nav-toggle:hover{border-color:var(--primary)}

/* ===== 按钮 ===== */
.btn,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--radius-sm);border:1px solid transparent;font-size:15.5px;font-weight:500;line-height:1;cursor:pointer;text-decoration:none;margin:0;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.btn-primary,.button.btn-primary{background:var(--accent);color:#0B2A26;box-shadow:var(--shadow-1)}
.btn-primary:hover,.button.btn-primary:hover{background:var(--accent-dark);color:#0B2A26;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active,.button.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn:focus-visible,.button:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ===== Hero ===== */
.page-hero{position:relative;overflow:hidden;background:var(--primary-dark);color:#fff;padding:76px 0 66px}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.page-hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,42,38,.62),rgba(11,42,38,.74))}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:16px;max-width:820px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#fff;font-size:12.5px;letter-spacing:.5px;margin-bottom:20px}
.hero-badge i{color:var(--accent);font-size:12px}
.hero-sub{max-width:660px;font-size:17px;color:rgba(255,255,255,.82);margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tag{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.9);font-size:13.5px}
.hero-tag i{color:var(--accent);font-size:12px}

/* ===== 简介 ===== */
.intro-body{max-width:720px}
.intro-body p{font-size:17px;color:var(--text-2);line-height:1.92}
.intro-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.intro-meta div{display:flex;flex-direction:column;gap:2px}
.intro-meta strong{font-size:22px;color:var(--primary);font-weight:700;letter-spacing:-.3px}
.intro-meta span{font-size:13.5px;color:var(--text-3)}

/* ===== 对照卡 ===== */
.pair-grid{margin-bottom:-24px}
.pair-cell{madding-bottom:24px;margin-bottom:24px}
.pair-card{height:100%;background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:var(--radius-sm);padding:22px 24px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.pair-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.3);border-left-color:var(--primary)}
.pair-card h3{font-size:17px;margin-bottom:10px;line-height:1.6}
.pair-card p{margin:0;font-size:15.5px;line-height:1.86;color:var(--text-2)}
.pair-index{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:8px;background:var(--primary-soft);color:var(--primary);font-size:12.5px;font-weight:700;margin-right:8px;vertical-align:middle}

/* ===== 提示语定义列表 ===== */
.tip-list{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.tip-row{display:flex;gap:24px;align-items:flex-start;padding:18px 24px;border-bottom:1px solid var(--line)}
.tip-row:last-child{border-bottom:0}
.tip-row:hover{background:#FBF9F6}
.tip-row dt{flex:0 0 210px;font-size:15.5px;font-weight:600;color:var(--text);border-left:3px solid var(--accent);padding-left:12px;line-height:1.7}
.tip-row dd{margin:0;flex:1;font-size:15.5px;line-height:1.86;color:var(--text-2)}
.tip-callout{margin-top:26px;padding:20px 24px;background:#F2F7F5;border:0;border-left:3px solid var(--primary);border-radius:var(--radius-sm);color:var(--text-2);font-size:15.5px}
.tip-callout i{color:var(--primary);margin-right:8px}

/* ===== 手风琴 ===== */
.accordion{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--line)}
.accordion .accordion-item:last-child{border-bottom:0}
.accordion .accordion-title{position:relative;padding:20px 58px 20px 24px;font-size:17px;font-weight:600;color:var(--text);background:transparent;border:0;transition:background .18s ease,color .18s ease}
.accordion .accordion-title:hover{background:#FBF9F6;color:var(--primary)}
.accordion .accordion-title::before{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--primary);font-weight:400;transition:transform .18s ease}
.accordion .accordion-item.is-active .accordion-title{color:var(--primary);box-shadow:inset 3px 0 0 var(--primary);background:#FBF9F6}
.accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.accordion .accordion-content{padding:0 24px 22px;border:0;background:#fff;color:var(--text-2);font-size:16px;line-height:1.9}
.accordion .accordion-content p{margin:0}

/* ===== 准备清单 ===== */
.prep-media{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow-1)}
.prep-media .ratio{position:relative;padding-top:56.25%;background:#EFEAE2}
.prep-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.check-list{list-style:none;margin:0 0 26px;padding:0}
.check-list li{position:relative;padding-left:30px;margin-bottom:14px;font-size:16px;color:var(--text-2);line-height:1.85}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:4px;background:var(--primary-soft);border:1px solid var(--primary)}
.check-list li::after{content:"";position:absolute;left:4.5px;top:13.5px;width:5px;height:5px;border-radius:1px;background:var(--primary)}
.check-list li strong{color:var(--text);font-weight:600}

/* ===== 相关栏目卡 ===== */
.entry-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.3)}
.entry-card .ratio{position:relative;padding-top:56.25%;background:#EFEAE2;border-bottom:1px solid var(--line)}
.entry-card .ratio img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.entry-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.entry-badge{align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12.5px;letter-spacing:.5px;background:rgba(59,46,126,.1);color:var(--indigo);margin-bottom:12px}
.entry-card h3{font-size:18px;margin-bottom:10px;line-height:1.55}
.entry-card p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:18px}
.entry-link{margin-top:auto;font-size:14.5px;font-weight:500;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.entry-link i{font-size:12px;transition:transform .18s ease}
.entry-card:hover .entry-link i{transform:translateX(3px)}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:36px;background:var(--primary-dark);border-radius:18px;padding:46px 48px;color:#fff}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.74);margin:0;font-size:16px}
.cta-list{list-style:none;display:flex;flex-wrap:wrap;gap:20px;margin:20px 0 0;padding:0}
.cta-list li{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:rgba(255,255,255,.8)}
.cta-list li i{color:var(--accent);font-size:13px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex:0 0 auto}
.cta-inner{position:relative;z-index:2;max-width:620px}

/* ===== 页脚 ===== */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.76);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:#0B2A26}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.64);margin:0}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.72);padding:5px 0}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:rgba(255,255,255,.72);padding:5px 0}
.footer-contact li i{color:var(--accent);font-size:13px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;border-top:1px solid rgba(255,255,255,.14);margin-top:44px;padding-top:20px;font-size:13.5px;color:rgba(255,255,255,.55)}
.footer-note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.45)}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--gap-section:72px}
  h1{font-size:32px}
  h2{font-size:24px}
  .header-inner{gap:14px;height:64px}
  .main-nav{position:fixed;top:0;left:0;right:0;bottom:0;z-index:110;display:flex;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:86px 24px 40px;background:var(--primary-dark);transform:translateX(100%);transition:transform .28s ease;overflow-y:auto}
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{color:#fff;font-size:18px;padding:15px 4px;border-radius:0;border-bottom:1px solid rgba(255,255,255,.12)}
  .nav-link:hover{background:transparent;color:var(--accent)}
  .nav-link.is-active{color:var(--accent)}
  .nav-link.is-active::after{display:none}
  .mobile-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;margin-bottom:20px;border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-sm);background:rgba(255,255,255,.08)}
  .mobile-search i{color:rgba(255,255,255,.7);font-size:14px}
  .mobile-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;color:#fff;font-size:15px}
  .mobile-search input::placeholder{color:rgba(255,255,255,.55)}
  .command-search{display:none}
  .quick-link{display:none}
  .nav-toggle{display:inline-flex}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;gap:26px}
  .cta-actions{width:100%;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .tip-row{flex-direction:column;gap:8px}
  .tip-row dt{flex:none;width:100%}
}
@media (max-width:767px){
  :root{--gap-section:52px}
  body{font-size:16px}
  .container{padding:0 18px}
  h1{font-size:26px}
  h2{font-size:21px}
  h3{font-size:17px}
  .brand-text em{display:none}
  .page-hero{padding:56px 0 48px}
  .hero-sub{font-size:15.5px}
  .section-head{margin-bottom:28px}
  .pair-card{padding:20px}
  .tip-row{padding:16px 18px}
  .accordion .accordion-title{padding:17px 50px 17px 18px;font-size:16px}
  .accordion .accordion-content{padding:0 18px 18px;font-size:15.5px}
  .cta-band{padding:30px 22px;border-radius:14px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section-tight{padding:40px 0}
}
@media (max-width:519px){
  .header-actions .btn-sm{padding:0 14px;font-size:13.5px}
  .brand-mark{width:34px;height:34px;font-size:17px}
  .brand-text strong{font-size:14px}
  .hero-tags{gap:8px}
  .hero-tag{font-size:12.5px;height:30px;padding:0 11px}
  .intro-meta{gap:20px}
}