/* roulang page: index */
:root{
  --brand:#1D5A8C;
  --brand-dark:#14456E;
  --brand-light:#E8F1F8;
  --amber:#F2A03D;
  --amber-dark:#D98526;
  --teal:#2E9E8F;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FB;
  --ink:#1B2733;
  --ink-2:#5A6B7B;
  --ink-3:#8A99A8;
  --line:#E2E8F0;
  --footer-bg:#12222F;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --sh-sm:0 1px 2px rgba(20,45,70,.06);
  --sh-md:0 8px 24px -12px rgba(20,45,70,.18);
  --sh-lg:0 20px 48px -24px rgba(20,45,70,.28);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--ink)}
:focus-visible{outline:2px solid rgba(242,160,61,.6);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1400px){.container{max-width:1280px}}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 22px;font-size:15px;font-weight:600;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease}
.btn:active{transform:translateY(0)}
.btn-primary-c{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary-c:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-amber{background:var(--amber);color:#fff;box-shadow:var(--sh-sm)}
.btn-amber:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-outline:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#C9DDF0;transform:translateY(-1px);box-shadow:var(--sh-sm)}
.btn-pill{border-radius:999px;min-height:40px;padding:8px 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.nav-wrap{display:flex;align-items:center;gap:32px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;letter-spacing:0;box-shadow:var(--sh-sm)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-sub{font-size:12px;font-weight:500;color:var(--ink-3);margin-top:3px;letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:20px 0;display:inline-block}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .22s ease}
.icon-btn:hover{color:var(--brand);border-color:#C9DDF0;background:var(--brand-light)}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer}
.hamburger:hover{background:var(--brand-light);color:var(--brand)}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(18,34,47,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:1050}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:84%;max-width:360px;background:#fff;z-index:1060;transform:translateX(-100%);transition:transform .28s ease;display:flex;flex-direction:column;box-shadow:var(--sh-lg)}
.mobile-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer}
.drawer-close:hover{background:var(--brand-light);color:var(--brand)}
.drawer-search{padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:15px;color:var(--ink)}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,140,.12)}
.drawer-nav{padding:8px 0}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 20px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-nav a i{color:var(--ink-3);font-size:13px}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand)}
.drawer-foot{padding:20px;margin-top:auto;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--bg-alt);padding:52px 0 68px;overflow:hidden}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;border:1px solid rgba(29,90,140,.07);box-shadow:0 0 0 64px rgba(29,90,140,.035),0 0 0 128px rgba(29,90,140,.02);pointer-events:none;z-index:0}
.hero .container{position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #D8E7F3;color:var(--brand-dark);font-size:13px;font-weight:600;padding:5px 12px;border-radius:6px;margin-bottom:18px}
.hero-badge i{color:var(--teal);font-size:11px}
.hero h1{font-size:42px;line-height:1.28;font-weight:700;letter-spacing:-.3px;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:16.5px;color:var(--ink-2);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;padding-top:24px;border-top:1px solid #DCE6F0}
.hero-stat b{display:block;font-size:30px;font-weight:700;color:var(--brand-dark);line-height:1.2;letter-spacing:-.5px}
.hero-stat span{font-size:12px;color:var(--ink-3);display:block;margin-top:2px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:var(--r-img);box-shadow:var(--sh-md);object-fit:cover;aspect-ratio:4/3.4}
.hero-float{position:relative;margin:-64px 0 0 20px;background:#fff;border-radius:12px;padding:16px 20px;box-shadow:var(--sh-lg);display:flex;gap:14px;align-items:flex-start;border-left:3px solid var(--brand);max-width:320px}
.hero-float .hf-title{font-size:15px;font-weight:700;color:var(--ink);margin:0 0 2px}
.hero-float .hf-desc{font-size:13px;color:var(--ink-3);margin:0;line-height:1.6}

/* ---------- 价值条 ---------- */
.value-strip{background:var(--brand-light);padding:44px 0}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.value-item{display:flex;gap:14px;align-items:flex-start}
.value-ico{flex:0 0 auto;width:42px;height:42px;border-radius:11px;background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:17px;box-shadow:var(--sh-sm)}
.value-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.value-item p{font-size:13.5px;color:var(--ink-2);margin:0;line-height:1.7}

/* ---------- 板块 ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:30px;font-weight:700;letter-spacing:-.2px}
.section-head h2::before{content:"";display:inline-block;width:28px;height:3px;border-radius:2px;background:var(--brand);vertical-align:middle;margin-right:12px;transform:translateY(-4px)}
.section-lead{font-size:15px;color:var(--ink-2);margin:10px 0 0;max-width:640px}
.section-head .link-arrow{flex:0 0 auto;padding-bottom:6px}

/* ---------- 功能卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.fg-main{grid-column:span 7}
.fg-a{grid-column:span 5}
.fg-b{grid-column:span 5}
.fg-c{grid-column:span 7}
.card-soft{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;height:100%;display:flex;flex-direction:column}
.card-soft:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:#D3E2F0}
.card-ico{width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.card-soft h3{font-size:18px;font-weight:600;margin-bottom:8px}
.card-soft p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 16px}
.card-soft .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-media{border-radius:12px;overflow:hidden;margin-bottom:18px}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.card-soft:hover .card-media img{transform:scale(1.03)}
.tag{display:inline-block;font-size:13px;font-weight:500;padding:3px 10px;border-radius:6px;background:var(--brand-light);color:var(--brand-dark)}
.tag-teal{background:rgba(46,158,143,.12);color:#1E7C70}
.tag-amber{background:rgba(242,160,61,.14);color:#A96417}
.mini-list{margin:0 0 18px;display:grid;gap:9px}
.mini-list li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);line-height:1.7}
.mini-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);opacity:.5}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:76px}
.scene:last-child{margin-bottom:0}
.scene-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-md)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene.rev .scene-media{order:2}
.scene-body h3{font-size:22px;font-weight:700;margin-bottom:12px}
.scene-body p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:18px}
.scene-points{display:grid;gap:10px;margin-bottom:22px}
.scene-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.scene-points i{color:var(--teal);font-size:13px;margin-top:7px}

/* ---------- 案例 ---------- */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);height:100%;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.case-card .case-img{overflow:hidden}
.case-card .case-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.case-card:hover .case-img img{transform:scale(1.03)}
.case-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.case-body h3{font-size:17px;font-weight:600;margin:12px 0 8px}
.case-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 16px}
.case-result{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px dashed var(--line)}
.case-result b{font-size:20px;color:var(--teal);font-weight:700;letter-spacing:-.3px}
.case-result span{font-size:12.5px;color:var(--ink-3);display:block;margin-top:-2px}
.case-result i{color:var(--ink-3);font-size:13px;transition:transform .22s ease}
.case-card:hover .case-result i{transform:translateX(4px);color:var(--brand)}

/* ---------- 资讯列表 ---------- */
.news-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:all .22s ease}
.chip:hover{border-color:#C9DDF0;color:var(--brand);background:var(--brand-light)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}
.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm)}
.news-item{position:relative;display:grid;grid-template-columns:auto 1fr auto 40px;gap:20px;align-items:center;padding:22px 24px;border-bottom:1px solid var(--line);transition:background-color .22s ease}
.news-item:last-child{border-bottom:none}
.news-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:center;transition:transform .25s ease}
.news-item:hover{background:#FBFDFF;color:inherit}
.news-item:hover::before{transform:scaleY(1)}
.news-item:hover .news-title{color:var(--brand)}
.news-badge{flex:0 0 auto;align-self:flex-start;margin-top:3px}
.news-title{display:block;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;margin-bottom:4px;transition:color .22s ease}
.news-desc{display:block;font-size:14px;color:var(--ink-2);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:14px;color:var(--ink-3);white-space:nowrap}
.news-arrow{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:13px;transition:all .22s ease}
.news-item:hover .news-arrow{background:var(--brand);border-color:var(--brand);color:#fff}
.news-empty{padding:64px 24px;text-align:center}
.news-empty i{font-size:34px;color:#C3D3E1;margin-bottom:14px;display:block}
.news-empty p{font-size:15px;color:var(--ink-2);margin-bottom:18px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.price-card.is-hot{border-color:#F3D2A5;box-shadow:var(--sh-md);background:linear-gradient(180deg,#FFFDF8 0%,#FFFFFF 42%)}
.price-flag{position:absolute;top:-13px;left:26px;background:var(--amber);color:#fff;font-size:12.5px;font-weight:600;padding:3px 12px;border-radius:6px;box-shadow:var(--sh-sm)}
.price-name{font-size:17px;font-weight:600;margin-bottom:6px}
.price-note{font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.price-num{display:flex;align-items:baseline;gap:6px;margin-bottom:20px}
.price-num b{font-size:36px;font-weight:700;letter-spacing:-1px;color:var(--brand-dark);line-height:1}
.price-num i{font-style:normal;font-size:14px;color:var(--ink-3)}
.price-card.is-hot .price-num b{color:var(--amber-dark)}
.price-feats{display:grid;gap:11px;margin-bottom:26px}
.price-feats li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.price-feats i{color:var(--brand);font-size:12px;margin-top:7px}
.price-card.is-hot .price-feats i{color:var(--amber-dark)}
.price-card .btn{width:100%;margin-top:auto}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent}
.accordion-button{background:transparent;color:var(--ink);font-size:16px;font-weight:600;padding:20px 44px 20px 16px;box-shadow:none;border-radius:0;line-height:1.6}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark);box-shadow:none;border-left:3px solid var(--brand);padding-left:16px}
.accordion-button:focus{box-shadow:none;border-color:var(--line)}
.accordion-button::after{content:"";position:absolute;right:16px;top:32px;width:11px;height:11px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);background-image:none;margin:0;transition:transform .2s ease}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);background-image:none}
.accordion-body{padding:6px 20px 22px 16px;font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-light);border-radius:20px;padding:56px 40px;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(29,90,140,.09);pointer-events:none}
.cta-band h2{font-size:28px;font-weight:700;margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--ink-2);margin-bottom:26px}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:0 0 28px;margin-top:var(--sec-y)}
.footer-line{height:2px;background:linear-gradient(90deg,var(--brand),var(--amber));margin-bottom:56px}
.footer-grid{padding-bottom:40px}
.brand-footer .brand-main{color:#fff}
.brand-footer .brand-sub{color:rgba(255,255,255,.5)}
.brand-footer .brand-mark{background:#1D5A8C}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.95);margin-bottom:16px;letter-spacing:.4px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);display:inline-block;transition:color .22s ease,transform .22s ease}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.62);margin:0 0 8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.45);margin:0}
.footer-bottom a{color:rgba(255,255,255,.6);border-bottom:1px solid rgba(255,255,255,.18)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .hero h1{font-size:38px}
  .hero-stats{gap:28px}
}
@media(max-width:991px){
  :root{--sec-y:72px}
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .nav-actions .btn-pill{display:none}
  .hero{padding:36px 0 52px}
  .hero h1{font-size:32px}
  .hero-media{margin-top:12px}
  .hero-media img{aspect-ratio:16/10}
  .hero-float{margin:-48px 12px 0 12px;max-width:none}
  .value-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .feature-grid{grid-template-columns:1fr}
  .fg-main,.fg-a,.fg-b,.fg-c{grid-column:span 1}
  .scene{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .scene.rev .scene-media{order:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:26px}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .faq-wrap{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:10px;padding:20px}
  .news-date{font-size:13px}
  .news-arrow{display:none}
  .cta-band{padding:40px 24px}
  .cta-band h2{font-size:24px}
  .footer-grid{row-gap:32px}
}
@media(max-width:767px){
  :root{--sec-y:56px}
  .nav-wrap{height:56px;gap:16px}
  .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
  .brand-main{font-size:15.5px}
  .brand-sub{font-size:11px}
  .hero h1{font-size:27px;line-height:1.32}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stat b{font-size:26px}
  .hero-stats{gap:22px}
  .section-head h2{font-size:22px}
  .card-soft{padding:22px}
  .price-card{padding:26px 22px}
  .news-title{font-size:16px}
  .value-item h3{font-size:15px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:575px){
  .container{padding:0 16px}
  .value-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-float{padding:14px 16px}
  .scene-body h3{font-size:19px}
  .cta-band h2{font-size:21px}
}

/* roulang page: article */
:root{
  --brand:#1D5A8C;
  --brand-deep:#14456E;
  --brand-light:#E8F1F8;
  --accent:#F2A03D;
  --accent-deep:#D98526;
  --teal:#2E9E8F;
  --ink:#1B2733;
  --muted:#5A6B7B;
  --faint:#8A99A8;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FB;
  --footer-bg:#12222F;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(20,45,70,.06);
  --sh-md:0 8px 24px -12px rgba(20,45,70,.18);
  --sh-lg:0 20px 48px -24px rgba(20,45,70,.28);
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
.container{width:100%;max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1280px}}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.header-inner{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;
  box-shadow:var(--sh-sm);
}
.brand-text{display:flex;align-items:baseline;gap:5px}
.brand-main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-sub{font-size:12px;font-weight:500;color:var(--faint)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:14px}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;white-space:nowrap;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,160,61,.35)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,160,61,.35)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-header{height:40px;padding:0 20px;border-radius:999px;font-size:14px}
.hamburger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.hamburger:hover{background:var(--brand-light);color:var(--brand)}
.hamburger:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,160,61,.35)}
.search-pop{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-md);
  padding:16px 0;
}
.search-pop[hidden]{display:none}
.search-form{display:flex;gap:10px;max-width:640px;margin:0 auto}
.search-form input{
  flex:1;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 16px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--faint)}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,140,.12)}

/* ===== 面包屑 ===== */
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--faint);
  padding:24px 0 6px;
}
.breadcrumb-line a{color:var(--faint)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:#C3CEDA}
.breadcrumb-line .current{
  color:var(--muted);max-width:100%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ===== 文章布局 ===== */
.page-main{padding-bottom:8px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  padding:14px 0 72px;
}
.article-main{min-width:0;max-width:760px}
.article-head{
  border-bottom:1px solid var(--line);
  padding-bottom:22px;
  margin-bottom:34px;
}
.article-title{
  font-size:32px;line-height:1.32;font-weight:700;
  color:var(--ink);letter-spacing:.2px;
  margin-bottom:16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-size:13.5px;color:var(--faint);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{font-size:12px;color:var(--faint)}
.badge-brand{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-deep);
  font-size:13px;font-weight:600;
  padding:3px 10px;border-radius:var(--r-badge);
}
.badge-teal{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(46,158,143,.1);color:#24796D;
  font-size:13px;font-weight:600;
  padding:3px 10px;border-radius:var(--r-badge);
}

/* ===== 正文排版 ===== */
.article-body{
  font-size:16.5px;line-height:1.9;color:var(--ink);
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  font-size:24px;font-weight:700;line-height:1.4;
  color:var(--ink);
  margin:2em 0 .8em;
  padding-top:2px;
}
.article-body h2::before{
  content:"";display:block;
  width:28px;height:3px;border-radius:2px;
  background:var(--brand);
  margin-bottom:12px;
}
.article-body h3{
  font-size:19px;font-weight:600;line-height:1.5;
  color:var(--ink);
  margin:1.7em 0 .6em;
}
.article-body h4{
  font-size:17px;font-weight:600;
  color:var(--ink);
  margin:1.4em 0 .5em;
}
.article-body ul,.article-body ol{
  margin:0 0 1.2em;padding-left:1.3em;
}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--brand-deep);text-decoration-thickness:2px}
.article-body img{
  display:block;max-width:100%;height:auto;
  border-radius:12px;
  margin:1.6em 0 .8em;
  box-shadow:var(--sh-sm);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  font-size:13px;color:var(--faint);line-height:1.7;
  margin-top:-.2em;
}
.article-body blockquote{
  margin:1.8em 0;
  padding:18px 24px;
  border-left:3px solid var(--brand);
  background:var(--bg-alt);
  border-radius:0 12px 12px 0;
  color:var(--muted);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body strong{font-weight:600;color:var(--ink)}
.article-body hr{
  border:none;border-top:1px solid var(--line);
  margin:2.4em 0;
}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  margin:1.6em 0;border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--brand-light);color:var(--brand-deep);
  font-weight:600;text-align:left;
  padding:12px 16px;font-size:14px;
}
.article-body td{
  padding:12px 16px;border-top:1px solid var(--line);
  color:var(--muted);
}

/* ===== 无内容状态 ===== */
.article-empty{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:64px 32px;
  text-align:center;
}
.empty-icon{
  width:64px;height:64px;border-radius:18px;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;
  font-size:24px;color:var(--brand);
  box-shadow:var(--sh-sm);
}
.empty-title{font-size:26px;font-weight:700;color:var(--ink);margin-bottom:12px}
.empty-text{font-size:15px;color:var(--muted);max-width:460px;margin:0 auto 24px;line-height:1.9}

/* ===== 文末区块 ===== */
.article-foot{
  margin-top:48px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.foot-title{
  position:relative;
  font-size:16px;font-weight:600;color:var(--ink);
  padding-left:12px;margin-bottom:18px;
}
.foot-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;
  background:var(--brand);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;font-size:13px;
  color:var(--brand-deep);background:var(--brand-light);
  border-radius:var(--r-badge);
  transition:background-color .22s ease,color .22s ease,transform .22s ease;
}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{
  display:block;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;
  box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-md);
  border-color:#CFE0EE;
}
.rel-card .rel-label{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--brand);background:var(--brand-light);
  padding:2px 8px;border-radius:var(--r-badge);margin-bottom:10px;
}
.rel-card h4{font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;margin-bottom:8px}
.rel-card p{font-size:13px;color:var(--faint);line-height:1.7;margin:0}
.rel-card .rel-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--brand);margin-top:12px;
}
.rel-card:hover .rel-arrow i{transform:translateX(4px)}
.rel-arrow i{transition:transform .22s ease}

/* ===== 侧栏 ===== */
.article-side{min-width:0}
.side-inner{
  position:sticky;top:88px;
  display:flex;flex-direction:column;gap:20px;
}
.side-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-sm);
}
.side-title{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink);
  padding-left:12px;margin-bottom:14px;
}
.side-title::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;
  background:var(--brand);
}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--muted);
  transition:color .22s ease,transform .22s ease;
}
.side-list a:hover{color:var(--brand);transform:translateX(2px)}
.side-list a i{font-size:11px;color:#C3CEDA;transition:color .22s ease}
.side-list a:hover i{color:var(--brand)}
.side-cta{
  background:var(--brand-light);
  border:1px solid #D5E5F2;
  border-radius:var(--r-card);
  padding:22px;
}
.side-cta .side-cta-img{
  border-radius:12px;overflow:hidden;margin-bottom:16px;
}
.side-cta .side-cta-img img{
  width:100%;height:130px;object-fit:cover;
  transition:transform .3s ease;
}
.side-cta:hover .side-cta-img img{transform:scale(1.03)}
.side-cta h3{font-size:16px;font-weight:600;color:var(--brand-deep);margin-bottom:8px}
.side-cta p{font-size:13.5px;line-height:1.8;color:var(--muted);margin-bottom:16px}
.side-cta .btn{width:100%;padding:11px 18px;font-size:14px}

/* ===== 移动端抽屉 ===== */
.drawer{position:fixed;inset:0;z-index:1060;pointer-events:none}
.drawer-mask{
  position:absolute;inset:0;background:rgba(18,34,47,.45);
  opacity:0;transition:opacity .3s ease;
}
.drawer-panel{
  position:absolute;top:0;left:0;bottom:0;
  width:84%;max-width:340px;
  background:#fff;
  transform:translateX(-100%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;
  box-shadow:var(--sh-lg);
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.drawer-close:hover{background:var(--brand-light);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;padding:0 18px;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15px;font-weight:500;color:var(--muted);
  border-bottom:1px solid var(--line);
  transition:color .2s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand);font-weight:600}
.drawer-nav a i{font-size:11px;color:#C3CEDA}
.drawer-search{padding:16px 18px 0}
.drawer-search input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:14px;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,140,.12)}
.drawer-foot{padding:16px 18px 24px}
.drawer-foot .btn{width:100%}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer-bg);color:#fff;margin-top:24px}
.footer-line{height:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.footer-grid{padding:56px 0 36px}
.brand-footer .brand-main{color:#fff}
.brand-footer .brand-sub{color:rgba(255,255,255,.55)}
.brand-footer .brand-mark{background:rgba(255,255,255,.14);color:#fff;box-shadow:none}
.footer-desc{
  margin-top:16px;font-size:14px;line-height:1.85;
  color:rgba(255,255,255,.58);max-width:330px;
}
.footer-title{
  font-size:14px;font-weight:600;color:rgba(255,255,255,.92);
  margin-bottom:16px;
}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li + li{margin-top:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.6);
  transition:color .22s ease,transform .22s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{
  font-size:14px;color:rgba(255,255,255,.58);
  margin:0 0 10px;line-height:1.75;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 26px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.45);margin:0}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .article-layout{gap:40px}
  .article-title{font-size:30px}
}
@media (max-width:991px){
  .header-inner{height:56px;gap:14px}
  .nav-links{display:none}
  .btn-header{display:none}
  .hamburger{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-bottom:56px}
  .article-main{max-width:100%}
  .article-side{margin-top:40px}
  .side-inner{position:static;flex-direction:row;gap:16px;flex-wrap:wrap}
  .side-card,.side-cta{flex:1 1 300px}
  .article-title{font-size:27px}
  .article-body{font-size:16px}
  .footer-grid{padding:44px 0 28px}
}
@media (max-width:767px){
  .breadcrumb-line{padding:18px 0 4px;gap:6px;font-size:12.5px}
  .breadcrumb-line .current{white-space:normal}
  .article-title{font-size:24px;line-height:1.36}
  .article-head{padding-bottom:18px;margin-bottom:26px}
  .article-meta{font-size:12.5px;gap:8px 14px}
  .article-body{font-size:15.5px;line-height:1.88}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17.5px}
  .article-body blockquote{padding:14px 18px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .article-empty{padding:44px 20px}
  .empty-title{font-size:22px}
  .side-inner{flex-direction:column}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:15px}
  .brand-main{font-size:15.5px}
  .brand-sub{font-size:11px}
  .article-title{font-size:22px}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#1D5A8C;
  --brand-deep:#14456E;
  --brand-soft:#E8F1F8;
  --accent:#F2A03D;
  --accent-deep:#D98526;
  --teal:#2E9E8F;
  --ink:#1B2733;
  --muted:#5A6B7B;
  --faint:#8A99A8;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FB;
  --footer-bg:#12222F;
  --r-btn:10px;
  --r-card:14px;
  --shadow-sm:0 1px 2px rgba(20,45,70,.06);
  --shadow-md:0 8px 24px -12px rgba(20,45,70,.18);
  --shadow-lg:0 20px 48px -24px rgba(20,45,70,.28);
  --sec-y:96px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,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:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-deep)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,160,61,.4);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:32px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;letter-spacing:0;
  box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-sub{font-size:12px;font-weight:500;color:var(--faint);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:grid;place-items:center;
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:#c8daea;background:var(--brand-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:14.5px;font-weight:600;line-height:1.2;
  padding:12px 22px;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:active{transform:translateY(0);box-shadow:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:#bcd2e6;background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-pill{border-radius:999px;padding:0 20px;height:40px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:15px}
.btn .fa-arrow-right{transition:transform .22s ease}
.btn:hover .fa-arrow-right{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumbs-wrap{padding:20px 0 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint)}
.crumbs a{color:var(--faint)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C7D2DE}
.crumbs .current{color:var(--muted)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background:var(--bg-alt);
  padding:24px 0 84px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-80px;
  width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(29,90,140,.10);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:20px;
  width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(29,90,140,.08);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-copy .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:6px;
  padding:4px 12px;margin-bottom:18px;
}
.hero-copy h1{
  font-size:42px;line-height:1.28;font-weight:700;letter-spacing:-.4px;
  margin-bottom:16px;
}
.hero-copy h1 .hl{color:var(--brand)}
.hero-copy p.sub{
  font-size:17px;line-height:1.75;color:var(--muted);
  max-width:520px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px}
.hero-stat .num{font-size:30px;font-weight:700;color:var(--brand);line-height:1.2}
.hero-stat .lbl{font-size:12px;color:var(--faint);letter-spacing:.4px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:16px;box-shadow:var(--shadow-lg);
}
.hero-float{
  position:absolute;left:-26px;bottom:26px;
  background:#fff;border-radius:12px;
  border-left:3px solid var(--brand);
  box-shadow:var(--shadow-lg);
  padding:14px 20px;
  max-width:260px;
}
.hero-float .hf-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:2px}
.hero-float .hf-desc{font-size:12.5px;color:var(--faint);line-height:1.6}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:44px;max-width:760px}
.section-title{
  font-size:30px;font-weight:700;line-height:1.35;
  padding-left:0;margin-bottom:14px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.section-title::before{
  content:"";display:block;width:28px;height:3px;border-radius:2px;
  background:var(--brand);flex:0 0 28px;
}
.section-desc{font-size:16px;color:var(--muted);max-width:680px}

/* ---------- 概览条 ---------- */
.overview-band{background:var(--brand-soft)}
.overview-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;
}
.overview-item{
  padding:34px 28px;
  border-left:1px solid rgba(29,90,140,.12);
}
.overview-item:first-child{border-left:none;padding-left:0}
.overview-item .ov-icon{
  width:38px;height:38px;border-radius:10px;
  background:#fff;color:var(--brand);
  display:grid;place-items:center;font-size:16px;
  box-shadow:var(--shadow-sm);margin-bottom:14px;
}
.overview-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.overview-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 功能矩阵 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.f-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.f-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cddcea}
.f-card.span-4{grid-column:span 4}
.f-card.span-2{grid-column:span 2}
.f-card.span-3{grid-column:span 3}
.f-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:18px;
  margin-bottom:18px;flex:0 0 auto;
}
.f-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.f-card p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:18px}
.f-card .f-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.f-card .f-link i{transition:transform .22s ease}
.f-card .f-link:hover{color:var(--brand-deep)}
.f-card .f-link:hover i{transform:translateX(4px)}
.f-card.has-img{padding:0;overflow:hidden}
.f-card.has-img .f-img{overflow:hidden;aspect-ratio:16/9}
.f-card.has-img .f-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.f-card.has-img:hover .f-img img{transform:scale(1.03)}
.f-card.has-img .f-body{padding:24px 28px 28px;display:flex;flex-direction:column;flex:1}
.tagline{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;
  color:var(--brand-deep);background:var(--brand-soft);
  border-radius:6px;padding:3px 10px;margin-bottom:12px;
  align-self:flex-start;
}
.tagline.teal{color:#1F6F65;background:#E3F4F1}

/* ---------- 流程 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.step-num{
  width:34px;height:34px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 对照表 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;overflow-x:auto;overflow-y:hidden;
  box-shadow:var(--shadow-sm);
}
.cap-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;font-size:14.5px}
.cap-table thead th{
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;text-align:left;
  padding:14px 20px;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cap-table thead th:first-child{position:sticky;left:0;z-index:2;background:var(--brand-soft)}
.cap-table tbody td{
  padding:0 20px;height:52px;color:var(--muted);
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.cap-table tbody tr:last-child td{border-bottom:none}
.cap-table tbody tr:nth-child(even) td{background:#F9FBFD}
.cap-table tbody td:first-child{
  font-weight:600;color:var(--ink);
  position:sticky;left:0;z-index:1;background:#fff;
}
.cap-table tbody tr:nth-child(even) td:first-child{background:#F9FBFD}
.cap-table .yes{color:var(--teal);font-weight:600}
.cap-table .no{color:var(--faint)}
.table-note{font-size:13px;color:var(--faint);margin-top:14px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 16px;
  font-size:16px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:22px;font-weight:400;line-height:1;
  color:var(--brand);transition:transform .2s ease;
}
.faq-item summary:hover{color:var(--brand);background:#FAFCFE}
.faq-item[open] summary{
  color:var(--brand-deep);
  background:var(--brand-soft);
  border-left-color:var(--brand);
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:6px 20px 22px;font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  background:var(--brand-soft);
  border-radius:18px;
  padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;margin-bottom:10px;line-height:1.4}
.cta-band p{font-size:15px;color:var(--muted);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding-bottom:26px}
.footer-line{height:2px;background:linear-gradient(90deg,var(--brand),var(--accent));margin-bottom:56px}
.footer-grid{padding-bottom:40px}
.brand-footer .brand-main{color:#fff}
.brand-footer .brand-sub{color:rgba(255,255,255,.55)}
.brand-footer .brand-mark{background:rgba(255,255,255,.12);color:#fff;box-shadow:none}
.footer-desc{
  font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);
  margin-top:18px;max-width:340px;
}
.footer-title{
  font-size:14px;font-weight:600;color:#fff;
  margin-bottom:16px;letter-spacing:.3px;
}
.footer-links{display:grid;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.62);
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:8px;line-height:1.75}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:20px;
  display:flex;justify-content:space-between;align-items:center;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(16,32,47,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  z-index:1040;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:340px;
  background:#fff;z-index:1050;
  transform:translateX(-100%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-lg);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--muted);display:grid;place-items:center;
  cursor:pointer;font-size:16px;
}
.drawer-close:hover{color:var(--brand);border-color:#c8daea;background:var(--brand-soft)}
.drawer-search{padding:16px 18px;border-bottom:1px solid var(--line)}
.drawer-search input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:10px;
  padding:0 14px;font-size:14px;color:var(--ink);background:#fff;
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,140,.12)}
.drawer-links{display:flex;flex-direction:column;padding:6px 0}
.drawer-links a{
  display:flex;align-items:center;height:48px;padding:0 18px;
  font-size:15px;font-weight:500;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--brand);background:var(--brand-soft)}
.drawer-foot{margin-top:auto;padding:18px}
.drawer-foot .btn{width:100%}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  place-items:center;cursor:pointer;font-size:17px;
}
.nav-toggle:hover{color:var(--brand);border-color:#c8daea;background:var(--brand-soft)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-copy h1{font-size:38px}
  .hero-grid{gap:40px}
  .overview-item{padding:28px 20px}
}
@media (max-width:991px){
  :root{--sec-y:72px}
  .nav-links{display:none}
  .header-cta{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:56px;gap:16px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:32px}
  .hero-copy p.sub{font-size:16px}
  .hero-float{left:12px;bottom:12px;padding:12px 16px;max-width:220px}
  .section-title{font-size:26px}
  .overview-grid{grid-template-columns:repeat(2,1fr)}
  .overview-item{border-left:none;border-top:1px solid rgba(29,90,140,.12);padding:24px 0}
  .overview-item:nth-child(even){padding-left:24px;border-left:1px solid rgba(29,90,140,.12)}
  .overview-item:nth-child(-n+2){border-top:none;padding-top:0}
  .matrix-grid{grid-template-columns:repeat(6,1fr)}
  .f-card.span-4,.f-card.span-3,.f-card.span-2{grid-column:span 3}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:36px;flex-direction:column;align-items:flex-start}
  .page-hero{padding-bottom:64px}
}
@media (max-width:767px){
  .hero-copy h1{font-size:30px}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:26px}
  .steps-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .cta-band h2{font-size:22px}
  .section-title{font-size:24px}
  .footer-grid{padding-bottom:28px}
  .footer-desc{max-width:none}
}
@media (max-width:575px){
  :root{--sec-y:56px}
  .container{padding:0 16px}
  .hero-copy h1{font-size:27px}
  .hero-copy p.sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .overview-grid{grid-template-columns:1fr}
  .overview-item{padding:20px 0!important;border-left:none!important}
  .overview-item:nth-child(-n+2){border-top:1px solid rgba(29,90,140,.12);padding-top:20px!important}
  .overview-item:first-child{border-top:none;padding-top:0!important}
  .matrix-grid{grid-template-columns:1fr}
  .f-card.span-4,.f-card.span-3,.f-card.span-2{grid-column:span 1}
  .f-card{padding:22px}
  .f-card.has-img .f-body{padding:20px 22px 24px}
  .section-title{font-size:22px}
  .section-title::before{width:22px;flex:0 0 22px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-main{font-size:16px}
}

/* roulang page: category2 */
:root{
  --primary:#1D5A8C;
  --primary-dark:#14456E;
  --primary-soft:#E8F1F8;
  --accent:#F2A03D;
  --accent-dark:#D98526;
  --teal:#2E9E8F;
  --ink:#1B2733;
  --muted:#5A6B7B;
  --weak:#8A99A8;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FB;
  --footer-bg:#12222F;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:16px;
  --sh-sm:0 1px 2px rgba(20,45,70,.06);
  --sh-md:0 8px 24px -12px rgba(20,45,70,.18);
  --sh-lg:0 20px 48px -24px rgba(20,45,70,.28);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(242,160,61,.6);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}

/* ---------- 品牌标识 ---------- */
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:9px;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
  box-shadow:var(--sh-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.brand-sub{font-size:12px;font-weight:500;color:var(--weak);letter-spacing:.6px;}
.brand:hover .brand-main{color:var(--primary-dark);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:6px 0;
  line-height:1.4;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--primary-dark);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.icon-btn{
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  cursor:pointer;
  transition:all .22s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--sh-sm);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:12px 22px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn:active{transform:translateY(0);}
.btn-brand{background:var(--primary);color:#fff;box-shadow:var(--sh-sm);}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-amber{background:var(--accent);color:#231507;box-shadow:var(--sh-sm);}
.btn-amber:hover{background:var(--accent-dark);color:#231507;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CBD9E6;}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-sm);}
.btn-pill{border-radius:999px;}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.hamburger{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#fff;
  padding:0;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.hamburger span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s ease,opacity .22s ease;
}
.search-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 0;
}
.search-panel.is-open{display:block;}
.search-form{display:flex;gap:10px;max-width:560px;}
.form-control{
  width:100%;
  height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:var(--weak);}
.form-control:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(29,90,140,.14);
}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(18,34,47,.45);
  z-index:1040;
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:84%;
  max-width:360px;
  background:#fff;
  z-index:1050;
  transform:translateX(-102%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:18px 20px 0;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:17px;cursor:pointer;
}
.drawer-close:hover{color:var(--primary);border-color:var(--primary);}
.drawer-links{display:flex;flex-direction:column;margin-bottom:18px;}
.drawer-links a{
  display:flex;
  align-items:center;
  min-height:48px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--primary);font-weight:600;}
.drawer-search{margin-bottom:18px;}
.drawer-cta{margin-bottom:22px;}
.drawer-cta .btn{width:100%;min-height:48px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  padding:22px 0 0;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{color:#C6D2DD;}
.breadcrumb-line .current{color:var(--weak);}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec) 0;}
.section-soft{background:var(--bg-soft);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-title{
  position:relative;
  font-size:30px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:.2px;
  padding-left:18px;
  margin-bottom:14px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:4px;
  height:26px;
  border-radius:3px;
  background:var(--primary-dark);
}
.sec-head.center .sec-title{padding-left:0;}
.sec-head.center .sec-title::before{display:none;}
.sec-lead{font-size:16px;color:var(--muted);line-height:1.85;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary-dark);
  background:var(--primary-soft);
  border-radius:var(--r-sm);
  padding:5px 12px;
  margin-bottom:18px;
}

/* ---------- 页头 ---------- */
.page-hero{
  background:var(--bg-soft);
  padding:0 0 64px;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-140px;
  top:-120px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px solid rgba(29,90,140,.06);
  background:rgba(29,90,140,.03);
  pointer-events:none;
}
.hero-center{
  max-width:720px;
  margin:36px auto 0;
  text-align:center;
  position:relative;
  z-index:1;
}
.hero-center h1{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:16px;
}
.hero-center .hero-sub{
  font-size:17px;
  color:var(--muted);
  line-height:1.85;
  margin-bottom:26px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
}
.heat-tags{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:26px;
}
.tag{
  font-size:13px;
  border-radius:var(--r-sm);
  padding:4px 11px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:600;
  line-height:1.6;
}
.tag-teal{background:rgba(46,158,143,.12);color:#1F7A6E;}
.tag-accent{background:rgba(242,160,61,.16);color:#8A5411;}
.hero-visual{
  margin-top:52px;
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-lg);
  position:relative;
  z-index:1;
}
.hero-visual img{
  width:100%;
  height:300px;
  object-fit:cover;
}

/* ---------- 场景三段 ---------- */
.scene-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:38px 0;
}
.scene-row + .scene-row{border-top:1px solid var(--line);}
.scene-row.reverse .scene-media{order:2;}
.scene-media{
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-md);
  background:#fff;
}
.scene-media img{
  width:100%;
  height:320px;
  object-fit:cover;
  transition:transform .3s ease;
}
.scene-media:hover img{transform:scale(1.03);}
.scene-index{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:1px;
  margin-bottom:12px;
}
.scene-index .bar{
  display:block;
  width:22px;
  height:3px;
  border-radius:2px;
  background:var(--accent);
}
.scene-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:12px;
}
.scene-body p{
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
  margin-bottom:16px;
}
.check-list{display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--ink);
  line-height:1.75;
}
.check-list i{
  color:var(--teal);
  font-size:14px;
  margin-top:6px;
  flex:0 0 auto;
}

/* ---------- 流程 ---------- */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:#CBD9E6;}
.step-num{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:700;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- 序列 / 热度卡 ---------- */
.rank-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.rank-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  display:flex;
  flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.rank-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.rank-poster{position:relative;overflow:hidden;}
.rank-poster img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .3s ease;
}
.rank-card:hover .rank-poster img{transform:scale(1.03);}
.rank-no{
  position:absolute;
  top:10px;
  left:10px;
  background:rgba(18,34,47,.72);
  color:#fff;
  font-size:12px;
  font-weight:700;
  border-radius:6px;
  padding:2px 9px;
}
.rank-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rank-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.rank-body .rank-desc{font-size:14px;color:var(--muted);line-height:1.75;}
.meter{
  height:6px;
  border-radius:999px;
  background:#EDF2F7;
  overflow:hidden;
}
.meter span{display:block;height:100%;border-radius:999px;background:var(--primary);}
.rank-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--weak);}
.rank-meta strong{color:var(--teal);font-size:13px;}

/* ---------- 引用 ---------- */
.quote-band{
  background:var(--bg-soft);
  border-left:3px solid var(--primary);
  border-radius:var(--r-md);
  padding:28px 32px;
  max-width:880px;
  margin:0 auto;
}
.quote-band p{font-size:17px;color:var(--ink);line-height:1.85;}
.quote-band .quote-note{margin-top:10px;font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.scene-faq .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.scene-faq .accordion-button{
  background:transparent;
  box-shadow:none;
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  line-height:1.7;
  padding:20px 44px 20px 0;
  border-radius:0;
}
.scene-faq .accordion-button:not(.collapsed){
  color:var(--primary-dark);
  background:var(--primary-soft);
  box-shadow:inset 3px 0 0 var(--primary);
  padding-left:18px;
}
.scene-faq .accordion-button:focus{box-shadow:none;}
.scene-faq .accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 var(--primary);}
.scene-faq .accordion-button::after{
  content:"+";
  background-image:none;
  width:auto;
  height:auto;
  font-size:22px;
  line-height:1;
  font-weight:400;
  color:var(--primary);
  transform:none;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-left:auto;
}
.scene-faq .accordion-button:not(.collapsed)::after{content:"−";transform:none;color:var(--primary-dark);}
.scene-faq .accordion-body{
  padding:6px 18px 24px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary-soft);
  border-radius:var(--r-xl);
  padding:48px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{
  font-size:26px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
}
.cta-band p{font-size:15px;color:var(--muted);line-height:1.8;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#C6D3DE;margin-top:0;}
.footer-line{
  height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.footer-grid{padding:56px 0 40px;}
.brand-footer .brand-mark{background:var(--primary);}
.brand-footer .brand-main{color:#fff;}
.brand-footer .brand-sub{color:rgba(198,211,222,.7);}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(198,211,222,.78);
  max-width:330px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#E8F0F7;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(198,211,222,.72);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact p{font-size:14px;color:rgba(198,211,222,.72);line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.footer-bottom p{font-size:13px;color:rgba(198,211,222,.6);}
.footer-bottom a{color:rgba(198,211,222,.72);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:80px;}
  .rank-grid{grid-template-columns:repeat(2,1fr);}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .header-inner{gap:20px;}
  .nav-links{gap:20px;}
}
@media (max-width:991px){
  :root{--sec:72px;}
  .nav-links,.nav-cta{display:none;}
  .hamburger{display:inline-flex;}
  .hero-center h1{font-size:32px;}
  .sec-title{font-size:26px;}
  .sec-title::before{height:23px;top:6px;}
  .scene-row{grid-template-columns:1fr;gap:26px;padding:30px 0;}
  .scene-row.reverse .scene-media{order:0;}
  .scene-media img{height:260px;}
  .hero-visual img{height:230px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  body{font-size:15.5px;line-height:1.8;}
  .header-inner{height:56px;}
  .hero-center{margin-top:24px;}
  .hero-center h1{font-size:27px;}
  .hero-center .hero-sub{font-size:15.5px;}
  .page-hero{padding-bottom:48px;}
  .hero-visual{margin-top:36px;}
  .hero-visual img{height:180px;}
  .sec-title{font-size:22px;}
  .sec-title::before{width:3px;height:20px;top:5px;}
  .step-grid{grid-template-columns:1fr;}
  .rank-grid{grid-template-columns:1fr;}
  .btn{width:100%;padding:13px 20px;min-height:46px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .quote-band{padding:22px 22px;}
  .quote-band p{font-size:15.5px;}
  .scene-media img{height:210px;}
  .footer-grid{padding:40px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-main{font-size:16px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .scene-body h3{font-size:18px;}
  .search-form{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --brand:#1D5A8C;
  --brand-dark:#14456E;
  --brand-light:#E8F1F8;
  --accent:#F2A03D;
  --accent-dark:#D98526;
  --teal:#2E9E8F;
  --teal-light:#E6F5F2;
  --ink:#1B2733;
  --muted:#5A6B7B;
  --faint:#8A99A8;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FB;
  --footer-bg:#12222F;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:16px;
  --sh-sm:0 1px 2px rgba(20,45,70,.06);
  --sh-md:0 8px 24px -12px rgba(20,45,70,.18);
  --sh-lg:0 20px 48px -24px rgba(20,45,70,.28);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid rgba(242,160,61,.6);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--r-md);
  border:1px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid rgba(242,160,61,.6);outline-offset:2px;box-shadow:none}
.btn-main{background:var(--accent);color:#fff;box-shadow:var(--sh-sm)}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7D6E3}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-sm)}
.btn-pill{border-radius:999px;height:40px;padding:0 20px;font-size:14px}
.w-100{width:100%}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;
  border-radius:9px;
  background:var(--brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;
  line-height:1;
}
.brand-text{display:flex;flex-direction:column;gap:1px}
.brand-main{font-size:17px;font-weight:700;line-height:1.15;color:var(--ink);letter-spacing:.01em}
.brand-sub{font-size:12px;font-weight:500;line-height:1.1;color:var(--faint);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:color .22s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  display:grid;place-items:center;
  transition:border-color .22s ease,color .22s ease,background-color .22s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.icon-btn:active{transform:scale(.97)}
.hamburger{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  display:none;
  place-items:center;
  padding:0;
  color:var(--ink);
}
.hamburger:hover{border-color:var(--brand);color:var(--brand)}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

.search-pop{
  position:absolute;
  top:100%;left:0;right:0;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-md);
  display:none;
  padding:16px 0;
}
.search-pop.is-open{display:block}
.search-pop-inner{display:flex;gap:12px;max-width:640px}
.form-control{
  height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  font-size:15px;
  color:var(--ink);
  padding:0 14px;
  background:#fff;
  box-shadow:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-control::placeholder{color:var(--faint)}
.form-control:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(29,90,140,.12);
  outline:none;
}

/* 抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;
  background:rgba(18,34,47,.45);
  z-index:1070;
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease;
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;
  top:0;left:0;
  height:100%;
  width:84%;
  max-width:360px;
  background:#fff;
  z-index:1080;
  transform:translateX(-100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:18px 20px 24px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--muted);font-size:20px;line-height:1;
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-search{margin:18px 0 8px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  display:flex;align-items:center;
  min-height:48px;
  font-size:15px;font-weight:500;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.drawer-links a.is-active{color:var(--brand);font-weight:600}
.drawer-links a:active{background:var(--brand-light)}
.drawer-foot{margin-top:auto;padding-top:24px}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;
  background:var(--bg-alt);
  padding:48px 0 80px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-160px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(29,90,140,.06);
  box-shadow:0 0 0 60px rgba(29,90,140,.03);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:56px;
  align-items:center;
  position:relative;
  z-index:1;
}
.breadcrumb-line{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--faint);
  margin-bottom:18px;
}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:#C3CFDA}
.breadcrumb-line .current{color:var(--muted)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;font-weight:500;
  padding:5px 12px;
  border-radius:var(--r-sm);
  margin-bottom:18px;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
h1{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero-lead{
  margin-top:18px;
  max-width:560px;
  font-size:17px;
  color:var(--muted);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--sh-md);
}
.hero-float{
  position:absolute;
  left:16px;bottom:16px;
  background:#fff;
  border-radius:var(--r-md);
  box-shadow:var(--sh-lg);
  border-left:3px solid var(--brand);
  padding:14px 18px;
  display:flex;
  flex-direction:column;
  gap:2px;
  max-width:78%;
}
.hero-float strong{font-size:15px;font-weight:600}
.hero-float span{font-size:13px;color:var(--faint)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:700px;margin-bottom:38px}
.section-head.flex-head{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.section-title{
  font-size:30px;
  font-weight:700;
  line-height:1.35;
}
.section-title::before{
  content:"";
  display:block;
  width:28px;height:3px;
  background:var(--brand);
  border-radius:2px;
  margin-bottom:14px;
}
.section-sub{
  margin-top:12px;
  font-size:15.5px;
  color:var(--muted);
  max-width:640px;
}

/* ============ 筛选标签 ============ */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
}
.filter-chip{
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  font-weight:500;
  line-height:1.2;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.filter-chip:hover{border-color:#C7D6E3;color:var(--brand)}
.filter-chip:active{transform:scale(.98)}
.filter-chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}

/* ============ 案例卡 ============ */
.case-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.case-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-md);
  border-color:#CBD9E5;
}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-light)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.case-card:hover .case-thumb img{transform:scale(1.03)}
.case-thumb .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--brand-dark);box-shadow:var(--sh-sm)}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:13px;
  font-weight:500;
  line-height:1.5;
  padding:3px 10px;
  border-radius:var(--r-sm);
  background:var(--brand-light);
  color:var(--brand-dark);
}
.tag-result{
  background:var(--teal-light);
  color:#1F7A6E;
  gap:6px;
}
.tag-result::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
.case-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
  padding:22px 24px 24px;
}
.case-title{
  font-size:17.5px;
  font-weight:600;
  line-height:1.5;
  transition:color .22s ease;
}
.case-card:hover .case-title{color:var(--brand)}
.case-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pct-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--faint);
  margin-bottom:6px;
}
.track{
  height:6px;
  background:#EDF2F7;
  border-radius:99px;
  overflow:hidden;
}
.track span{
  display:block;
  height:100%;
  background:var(--brand);
  border-radius:99px;
  transition:width .4s ease;
}
.case-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.arrow-link svg{transition:transform .22s ease}
.arrow-link:hover{color:var(--brand-dark)}
.arrow-link:hover svg{transform:translateX(4px)}

/* ============ 数据带 ============ */
.stats-band{background:var(--brand-light);padding:56px 0}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat-item{padding:0 8px;text-align:center}
.stat-item + .stat-item{border-left:1px solid rgba(29,90,140,.14)}
.stat-num{
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand-dark);
  letter-spacing:-.01em;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px}
.stat-label{margin-top:10px;font-size:13.5px;color:var(--muted)}

/* ============ 更新节奏 ============ */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.tl-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 22px 22px 24px;
  box-shadow:var(--sh-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.tl-card::before{
  content:"";
  position:absolute;
  left:0;top:20px;bottom:20px;
  width:3px;
  border-radius:3px;
  background:var(--brand-light);
  transition:background-color .25s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.tl-card:hover::before{background:var(--accent)}
.tl-issue{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  margin-bottom:10px;
  letter-spacing:.02em;
}
.tl-card h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--muted);line-height:1.75}
.tl-date{
  display:inline-block;
  margin-top:14px;
  font-size:13px;
  color:var(--faint);
}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
  border-radius:0;
}
.faq-accordion .accordion-button{
  padding:20px 48px 20px 18px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:transparent;
  border-radius:0;
  box-shadow:none;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.faq-accordion .accordion-button:hover{color:var(--brand)}
.faq-accordion .accordion-button:focus{
  box-shadow:none;
  outline:2px solid rgba(242,160,61,.55);
  outline-offset:-2px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-dark);
  background:var(--brand-light);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button::after{
  width:16px;height:16px;
  background-size:16px 16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231D5A8C'%3E%3Cpath d='M7 2h2v5h5v2H9v5H7V9H2V7h5z'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2314456E'%3E%3Cpath d='M2 7h12v2H2z'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-body{
  padding:0 18px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  background:var(--brand-light);
}

/* ============ 尾部 CTA ============ */
.cta-band{
  background:var(--brand-light);
  border-radius:var(--r-xl);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;color:var(--muted);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.footer-line{height:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.site-footer{background:var(--footer-bg);color:#C7D3DD;padding:64px 0 0}
.footer-grid{padding-bottom:40px}
.footer-desc{
  margin-top:16px;
  max-width:330px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
}
.brand-footer .brand-main{color:#fff}
.brand-footer .brand-sub{color:rgba(255,255,255,.55)}
.brand-footer .brand-mark{background:var(--brand)}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.66);
  transition:color .22s ease,transform .22s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  margin-bottom:8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{gap:40px}
}
@media (max-width:991px){
  :root{--sec-y:72px}
  .nav-links,.header-cta{display:none}
  .hamburger{display:grid}
  .header-inner{height:56px;gap:14px}
  .brand-main{font-size:16px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  h1{font-size:32px}
  .section-title{font-size:26px}
  .page-hero{padding:36px 0 56px}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 16px}
  .stat-item + .stat-item{border-left:0}
  .stat-item:nth-child(even){border-left:1px solid rgba(29,90,140,.14)}
  .cta-band{padding:32px}
  .cta-band h2{font-size:22px}
}
@media (max-width:767px){
  .case-grid{gap:18px}
  .hero-visual img{aspect-ratio:16/11}
}
@media (max-width:575px){
  :root{--sec-y:56px}
  body{font-size:15.5px}
  h1{font-size:27px}
  .section-title{font-size:22px}
  .hero-lead{font-size:15.5px}
  .case-grid,.timeline{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:28px}
  .stat-item:nth-child(even){border-left:0}
  .stat-item{border-left:0}
  .stat-num{font-size:30px}
  .cta-band{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{flex:1 1 auto}
  .footer-grid{gap:28px}
  .search-pop-inner{flex-direction:column}
  .search-pop-inner .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --brand:#1D5A8C;
  --brand-dark:#14456E;
  --brand-light:#E8F1F8;
  --accent:#F2A03D;
  --accent-dark:#D98526;
  --teal:#2E9E8F;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FB;
  --text:#1B2733;
  --muted:#5A6B7B;
  --faint:#8A99A8;
  --line:#E2E8F0;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:16px;
  --shadow-sm:0 1px 2px rgba(20,45,70,.06);
  --shadow-md:0 8px 24px -12px rgba(20,45,70,.18);
  --shadow-lg:0 20px 48px -24px rgba(20,45,70,.28);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
ul,ol{margin:0}
[hidden]{display:none !important}
::selection{background:var(--brand-light);color:var(--brand-dark)}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:64px;
}
.brand{
  display:inline-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:grid;
  place-items:center;
  font-size:16px;
  font-weight:700;
  letter-spacing:0;
  box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-main{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.2px;
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--faint);
  letter-spacing:.4px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:0;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:14px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link:focus-visible{
  outline:2px solid rgba(242,160,61,.7);
  outline-offset:4px;
  border-radius:4px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
}
.icon-btn{
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  display:inline-grid;
  place-items:center;
  font-size:14px;
  cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}
.icon-btn:active{transform:translateY(1px)}
.icon-btn:focus-visible{outline:2px solid rgba(242,160,61,.7);outline-offset:2px}
.header-cta{
  border-radius:999px;
  height:40px;
  padding:0 20px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
}
.hamburger{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  align-items:center;
  justify-content:center;
  font-size:16px;
  cursor:pointer;
  transition:border-color .22s ease,color .22s ease;
}
.hamburger:hover{border-color:var(--brand);color:var(--brand)}
.search-panel{
  position:absolute;
  left:0;
  right:0;
  top:100%;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-md);
  padding:16px 0;
  z-index:1029;
}
.search-form{display:flex;gap:12px;align-items:center}
.search-form .form-control{flex:1 1 auto}

/* ============ 移动抽屉 ============ */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(18,34,47,.45);
  z-index:1090;
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;
  left:0;
  width:84%;
  max-width:360px;
  height:100%;
  background:#fff;
  z-index:1100;
  transform:translateX(-104%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:20px;
  overflow-y:auto;
  box-shadow:var(--shadow-lg);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 4px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.drawer-link:hover{color:var(--brand)}
.drawer-link.is-active{color:var(--brand);font-weight:600}
.drawer-cta{width:100%;justify-content:center;margin-top:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,160,61,.45)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-light);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand);padding-left:0;padding-right:0}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-ghost .fa-arrow-right{transition:transform .22s ease}
.btn-ghost:hover .fa-arrow-right{transform:translateX(4px)}
.btn-block{width:100%}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  padding-top:20px;
}
.crumbs a{color:var(--faint)}
.crumbs a:hover{color:var(--brand)}
.crumbs span[aria-current]{color:var(--muted)}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  background:var(--bg-soft);
  padding-bottom:72px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:520px;
  height:520px;
  border-radius:50%;
  border:1px solid rgba(29,90,140,.06);
  box-shadow:0 0 0 60px rgba(29,90,140,.035),0 0 0 130px rgba(29,90,140,.025);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
  padding-top:36px;
  position:relative;
  z-index:2;
}
.hero-copy h1{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.4px;
  margin:14px 0 0;
  color:var(--text);
}
.hero-copy .hero-sub{
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  margin:16px 0 0;
  max-width:540px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-light);
  border-radius:6px;
  padding:4px 12px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.trust-bar{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:38px;
  padding-top:24px;
  border-top:1px solid rgba(29,90,140,.12);
}
.trust-item .trust-num{
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand-dark);
  letter-spacing:-.5px;
  display:block;
}
.trust-item .trust-label{
  display:block;
  font-size:12px;
  color:var(--faint);
  margin-top:6px;
  letter-spacing:.2px;
}
.hero-visual{position:relative}
.hero-img-wrap{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  background:#dde7ef;
  aspect-ratio:4/3.1;
}
.hero-img-wrap img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-float-card{
  position:absolute;
  left:-16px;
  bottom:-24px;
  display:flex;
  gap:14px;
  background:#fff;
  border-radius:12px;
  padding:16px 20px;
  box-shadow:var(--shadow-lg);
  max-width:330px;
}
.float-bar{
  width:3px;
  border-radius:3px;
  background:var(--brand);
  flex:0 0 3px;
}
.hero-float-card strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.hero-float-card p{
  margin:4px 0 0;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

/* ============ 区块 ============ */
.section{padding:96px 0}
.section--soft{background:var(--bg-soft)}
.section-head{max-width:740px;margin-bottom:44px}
.section-title{
  position:relative;
  padding-left:20px;
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  margin:0;
  color:var(--text);
  letter-spacing:-.2px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  width:3px;
  height:28px;
  border-radius:2px;
  background:var(--brand);
}
.section-lead{
  margin:14px 0 0 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:660px;
}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}

/* ============ 价格档位 ============ */
.plan-card{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.plan-card.is-featured{
  border-color:var(--accent);
  box-shadow:var(--shadow-lg);
}
.plan-card.is-featured:hover{transform:translateY(-4px)}
.plan-name{
  font-size:13px;
  font-weight:600;
  letter-spacing:.6px;
  color:var(--brand);
  text-transform:uppercase;
}
.plan-card h3{
  font-size:20px;
  font-weight:600;
  margin:10px 0 0;
  color:var(--text);
}
.plan-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
  margin:8px 0 0;
  min-height:48px;
}
.plan-price{
  display:flex;
  align-items:baseline;
  gap:6px;
  margin:20px 0 4px;
  color:var(--brand-dark);
  font-weight:700;
  font-size:36px;
  letter-spacing:-1px;
  line-height:1.1;
}
.plan-price small{
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  letter-spacing:0;
}
.plan-cycle{
  font-size:13px;
  color:var(--faint);
  margin:0 0 20px;
}
.plan-list{
  list-style:none;
  padding:20px 0 0;
  margin:0 0 24px;
  border-top:1px solid var(--line);
}
.plan-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  margin-bottom:10px;
}
.plan-list li:last-child{margin-bottom:0}
.plan-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:11px;
  color:var(--teal);
  position:absolute;
  left:0;
  top:4px;
}
.plan-card .btn{margin-top:auto}
.plan-badge{
  position:absolute;
  top:-13px;
  right:24px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  letter-spacing:.6px;
  padding:4px 12px;
  border-radius:6px;
  box-shadow:var(--shadow-sm);
}
.plan-note{
  margin-top:24px;
  font-size:13px;
  color:var(--faint);
  display:flex;
  align-items:flex-start;
  gap:8px;
}
.plan-note i{color:var(--brand);margin-top:4px}

/* ============ 对照表 ============ */
.cmp-wrap{
  overflow-x:auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  -webkit-overflow-scrolling:touch;
}
.cmp-table{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  font-size:14px;
}
.cmp-table thead th{
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  height:52px;
  padding:0 20px;
  text-align:left;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.cmp-table tbody th,
.cmp-table tbody td{
  height:52px;
  padding:10px 20px;
  text-align:left;
  color:var(--muted);
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.cmp-table tbody th{
  font-weight:600;
  color:var(--text);
  position:sticky;
  left:0;
  z-index:1;
  white-space:nowrap;
  min-width:180px;
}
.cmp-table tbody tr:nth-child(odd) th,
.cmp-table tbody tr:nth-child(odd) td{background:#FFFFFF}
.cmp-table tbody tr:nth-child(even) th,
.cmp-table tbody tr:nth-child(even) td{background:#F9FBFD}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table tbody tr:hover td{background:#F1F7FB}
.cmp-table tbody tr:hover th{background:#F1F7FB}
.cmp-yes{color:var(--teal);font-size:14px}
.cmp-no{color:#C3CDD8;font-size:14px}
.cmp-em{color:var(--brand-dark);font-weight:600}

/* ============ 支持流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
  margin-bottom:56px;
}
.steps::before{
  content:"";
  position:absolute;
  top:22px;
  left:6%;
  right:6%;
  height:2px;
  background:linear-gradient(90deg,rgba(29,90,140,.35),rgba(29,90,140,.08));
  border-radius:2px;
  z-index:0;
}
.step{
  position:relative;
  z-index:1;
  background:transparent;
}
.step-num{
  width:44px;
  height:44px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--brand);
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  display:grid;
  place-items:center;
  box-shadow:var(--shadow-sm);
  margin-bottom:16px;
}
.step h3{
  font-size:17px;
  font-weight:600;
  margin:0 0 8px;
  color:var(--text);
}
.step p{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.channel-card{
  display:flex;
  gap:16px;
  align-items:flex-start;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.channel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CFDEEB}
.channel-icon{
  flex:0 0 40px;
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--brand-light);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:16px;
}
.channel-card h3{
  font-size:16px;
  font-weight:600;
  margin:0 0 6px;
  color:var(--text);
}
.channel-card p{
  margin:0;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.channel-card .badge-soft{margin-top:10px}

/* ============ 徽章 / 标签 ============ */
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-dark);
  background:var(--brand-light);
  border-radius:6px;
  padding:3px 10px;
  line-height:1.6;
}
.badge-teal{
  color:#1F7266;
  background:rgba(46,158,143,.12);
}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 48px;
}
.faq-item{
  border-bottom:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:0;
  background:transparent;
  transition:background .2s ease,border-color .2s ease;
}
.faq-item[open]{
  background:var(--brand-light);
  border-left-color:var(--brand);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:18px 46px 18px 18px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--brand);
  line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary:focus-visible{
  outline:2px solid rgba(242,160,61,.7);
  outline-offset:-4px;
}
.faq-body{
  padding:0 46px 20px 18px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  animation:fadeIn .2s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ============ 表单 ============ */
.contact-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-md);
}
.form-label{
  font-size:13px;
  font-weight:500;
  color:var(--muted);
  margin-bottom:6px;
}
.form-control{
  width:100%;
  height:44px;
  padding:10px 14px;
  font-size:15px;
  color:var(--text);
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#A9B6C2}
.form-control:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(29,90,140,.12);
  outline:none;
}
textarea.form-control{height:auto;min-height:124px;resize:vertical;line-height:1.8}
.form-error{
  display:block;
  min-height:18px;
  margin-top:4px;
  font-size:13px;
  color:#C4442F;
}
.form-control.is-invalid{border-color:#C4442F}
.form-control.is-invalid:focus{box-shadow:0 0 0 3px rgba(196,68,47,.14)}
.form-success{
  display:none;
  align-items:center;
  gap:8px;
  margin-top:16px;
  padding:12px 16px;
  border-radius:10px;
  background:rgba(46,158,143,.12);
  color:#1F7266;
  font-size:14px;
}
.form-success.is-visible{display:flex}
.support-aside h3{
  font-size:20px;
  font-weight:600;
  margin:0 0 12px;
  color:var(--text);
}
.support-aside p{
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  margin:0 0 16px;
}
.support-aside .aside-img{
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  margin-bottom:20px;
  aspect-ratio:4/3;
}
.support-aside .aside-img img{width:100%;height:100%;object-fit:cover}
.aside-list{list-style:none;padding:0;margin:0}
.aside-list li{
  position:relative;
  padding-left:26px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin-bottom:8px;
}
.aside-list li:last-child{margin-bottom:0}
.aside-list li::before{
  content:"\f058";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  color:var(--brand);
  position:absolute;
  left:0;
  top:5px;
}

/* ============ 尾部 CTA ============ */
.cta-band{
  background:var(--brand-light);
  border-radius:16px;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{
  position:relative;
  padding-left:20px;
  font-size:28px;
  font-weight:700;
  line-height:1.35;
  margin:0;
  color:var(--brand-dark);
  max-width:560px;
}
.cta-band h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  width:3px;
  height:26px;
  border-radius:2px;
  background:var(--accent);
}
.cta-band p{
  margin:12px 0 0 20px;
  font-size:14px;
  color:var(--muted);
  max-width:520px;
}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start}

/* ============ 页脚 ============ */
.site-footer{
  background:#12222F;
  color:rgba(255,255,255,.72);
  margin-top:0;
}
.footer-line{
  height:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.footer-grid{padding:64px 0 40px}
.brand-footer .brand-main{color:#fff}
.brand-footer .brand-sub{color:rgba(255,255,255,.5)}
.brand-footer .brand-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  margin:16px 0 0;
  max-width:340px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
  letter-spacing:.4px;
}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links a{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.66);
  padding:5px 0;
  transition:color .22s ease,transform .22s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(-2px)}
.footer-contact p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  margin:0 0 6px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:18px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-copy h1{font-size:36px}
  .hero-grid{gap:40px}
  .trust-item .trust-num{font-size:30px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .header-inner{min-height:58px;gap:16px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-top:28px}
  .hero-visual{order:2}
  .hero-img-wrap{aspect-ratio:16/10}
  .hero-float-card{left:auto;right:12px;bottom:-20px;max-width:300px}
  .hero-copy h1{font-size:32px}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .steps{grid-template-columns:1fr 1fr;gap:28px}
  .steps::before{display:none}
  .section-head-row{margin-bottom:32px}
  .cta-band{padding:36px}
  .cta-band h2{font-size:24px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .page-hero{padding-bottom:56px}
  .hero-copy h1{font-size:29px}
  .section-title{font-size:24px}
  .trust-bar{gap:24px}
  .trust-item .trust-num{font-size:26px}
  .plan-card{padding:24px}
  .contact-panel{padding:22px}
  .footer-grid{padding:48px 0 28px}
  .cta-band{padding:28px}
  .cta-band h2{font-size:22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
}
@media (max-width:575px){
  .header-cta{display:none}
  .hero-copy h1{font-size:27px;letter-spacing:-.2px}
  .hero-float-card{position:static;margin-top:16px;max-width:none}
  .hero-actions .btn{width:100%}
  .steps{grid-template-columns:1fr}
  .plan-price{font-size:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{margin-bottom:32px}
}