/* roulang page: index */
:root{
  --brand-500:#FF4D2D; --brand-600:#E63A1C; --brand-300:#FF9A6B;
  --accent-500:#12B5A0; --accent-300:#2ED3B7; --accent-50:#E6FBF6;
  --badge-400:#FFC53D; --badge-600:#C8890A;
  --ink-900:#16181C; --ink-700:#2A2E35; --ink-500:#5A6169; --ink-400:#8B929B;
  --line:#E8E2DA; --bg:#FDFAF6; --surface:#FFFFFF; --surface-2:#F6F1EA; --night:#14161A;
  --grad-brand:linear-gradient(118deg,#FF4D2D 0%,#FF7A45 46%,#FFC53D 100%);
  --grad-accent:linear-gradient(120deg,#0FA98F 0%,#2ED3B7 100%);
  --grad-night:linear-gradient(135deg,#14161A 0%,#20242B 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(22,24,28,.05), 0 10px 26px -16px rgba(22,24,28,.16);
  --sh-2:0 2px 4px rgba(22,24,28,.06), 0 18px 40px -18px rgba(255,77,45,.30);
  --sh-inset-line:inset 0 0 0 1px var(--line);
  --nav-1:64px; --nav-2:52px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.01em;line-height:1.2}
h1{font-size:44px;line-height:1.15}
h2{font-size:30px}
h3{font-size:20px;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-top{height:var(--nav-1);display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;box-shadow:0 8px 18px -10px rgba(255,77,45,.9)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--ink-400);letter-spacing:.14em}
.nav-search{margin-left:auto;display:none;align-items:center;gap:8px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:8px 16px;min-width:240px;transition:border-color .18s ease,box-shadow .18s ease}
.nav-search:focus-within{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(18,181,160,.14)}
.nav-search svg{flex:0 0 auto;stroke:var(--ink-400)}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.nav-cta{display:none}
.burger{margin-left:auto;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.nav-channels{height:var(--nav-2);display:flex;align-items:center;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;border-top:1px solid var(--line)}
.nav-channels::-webkit-scrollbar{display:none}
.pill{scroll-snap-align:start;flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-500);background:var(--surface-2);border:1px solid var(--line);transition:all .18s cubic-bezier(.2,.7,.3,1);white-space:nowrap}
.pill[aria-current="page"]{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 10px 22px -14px rgba(255,77,45,.95)}
@media(min-width:1024px){
  .nav-search{display:flex}
  .nav-cta{display:inline-flex}
  .burger{display:none}
}
@media(max-width:1023px){
  .nav-channels{position:sticky;top:var(--nav-1)}
}
.drawer{position:fixed;inset:0;z-index:80;background:rgba(20,22,26,.5);display:none}
.drawer.is-open{display:block}
.drawer-panel{position:absolute;right:0;top:0;height:100%;width:min(320px,86vw);background:var(--surface);padding:22px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--sh-1)}
.drawer-close{align-self:flex-end;border:1px solid var(--line);background:var(--surface-2);border-radius:10px;width:38px;height:38px;cursor:pointer}
.drawer-link{padding:13px 14px;border-radius:var(--r-sm);background:var(--surface-2);border:1px solid var(--line);font-weight:600;color:var(--ink-700)}
.drawer-link[aria-current="page"]{background:var(--grad-brand);color:#fff;border-color:transparent}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 28px;font-size:15px;font-weight:700;cursor:pointer;border:0;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,background .18s ease,color .18s ease}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 14px 30px -18px rgba(255,77,45,.95)}
.btn-ghost{background:var(--surface);color:var(--brand-600);border:1.5px solid var(--brand-500)}
.btn-dark{background:var(--grad-accent);color:var(--night)}
.btn-sm{padding:10px 20px;font-size:14px}
@media(hover:hover){
  .btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
  .btn-ghost:hover{background:var(--brand-500);color:#fff}
  .btn-dark:hover{transform:translateY(-2px)}
}
.btn:active{transform:translateY(0)}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand-600);text-transform:uppercase}
.eyebrow::before{content:"";width:20px;height:3px;border-radius:2px;background:var(--grad-brand)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head h2{margin-top:12px}
.section-sub{color:var(--ink-500);font-size:15px;max-width:620px;margin-top:10px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand-600);border-bottom:2px solid transparent;background-image:var(--grad-brand);background-size:100% 2px;background-position:0 100%;background-repeat:no-repeat;padding-bottom:3px}
.text-link svg{stroke:var(--brand-600);transition:transform .18s ease}
@media(hover:hover){.text-link:hover svg{transform:translateX(3px)}}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(255,77,45,.30),rgba(255,197,61,.14) 55%,rgba(253,250,246,0) 72%);
  filter:blur(90px);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(232,226,218,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(232,226,218,.55) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),rgba(0,0,0,0) 70%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),rgba(0,0,0,0) 70%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:40px;padding:48px 0 56px}
.hero-copy h1{margin-bottom:18px}
.hero-copy h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--ink-500);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:26px;font-size:14px;color:var(--ink-500)}
.trust-row span{display:inline-flex;align-items:center;gap:7px}
.trust-row svg{stroke:var(--accent-500)}
.hero-media{position:relative;border-radius:var(--r-xl);padding:8px;background:var(--surface);box-shadow:var(--sh-1),var(--sh-inset-line)}
.hero-media img{width:100%;height:280px;object-fit:cover;border-radius:calc(var(--r-xl) - 8px)}
.hero-badge{position:absolute;left:-6px;bottom:-22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:12px}
.hero-badge b{font-size:24px;color:var(--brand-600);font-weight:800}
.hero-badge small{display:block;font-size:12px;color:var(--ink-500);line-height:1.4}
@media(min-width:768px){
  .hero-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px;padding:64px 0 72px}
  .hero-media img{height:400px}
}
@media(min-width:1024px){
  .hero-copy h1{font-size:44px}
}
@media(max-width:767px){
  h1{font-size:28px}
  h2{font-size:22px}
  .hero-media img{height:230px}
  .hero-badge{position:static;margin-top:14px;left:auto;bottom:auto}
}

/* ---------- 数据徽章条 ---------- */
.stat-bar{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stat{display:flex;align-items:center;gap:12px;background:var(--accent-50);border:1px solid var(--accent-300);border-radius:999px;padding:12px 18px}
.stat svg{stroke:var(--accent-500);flex:0 0 auto}
.stat b{font-size:20px;font-weight:800;color:var(--accent-500)}
.stat span{font-size:13px;color:var(--ink-500)}
@media(min-width:1024px){.stat-bar{grid-template-columns:repeat(4,1fr)}}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
.step-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.step-main img{width:100%;height:210px;object-fit:cover}
.step-body{padding:26px}
.step-no{font-size:52px;font-weight:800;color:transparent;-webkit-text-stroke:2px var(--brand-300);line-height:1;font-variant-numeric:tabular-nums}
.step-main h3{margin:10px 0 10px;font-size:22px}
.step-main p{color:var(--ink-500);font-size:15px}
.step-list{display:flex;flex-direction:column;gap:20px;position:relative;padding-left:22px}
.step-list::before{content:"";position:absolute;left:5px;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--brand-300),rgba(255,154,107,0))}
.step-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px 24px;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.step-item::before{content:"";position:absolute;left:-22px;top:30px;width:12px;height:12px;border-radius:50%;background:var(--surface);border:2px solid var(--brand-500)}
.step-item .step-no{font-size:34px}
.step-item h3{margin:6px 0 8px;font-size:19px}
.step-item p{font-size:14.5px;color:var(--ink-500)}
@media(min-width:1024px){
  .steps{grid-template-columns:6fr 6fr;gap:24px;align-items:start}
  .step-main img{height:260px}
}
@media(hover:hover){
  .step-main:hover,.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
}

/* ---------- 设备与能力卡 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px}
.card-body p{font-size:14.5px;color:var(--ink-500)}
.tag{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;font-size:13px;font-weight:700;color:var(--badge-600);background:rgba(255,197,61,.18);border:1px solid rgba(255,197,61,.5);border-radius:999px;padding:4px 12px}
.tag-accent{color:var(--accent-500);background:var(--accent-50);border-color:var(--accent-300)}
.card-points{display:flex;flex-direction:column;gap:6px;margin-top:4px;font-size:14px;color:var(--ink-500)}
.card-points span{display:flex;gap:8px;align-items:flex-start}
.card-points svg{flex:0 0 auto;margin-top:5px;stroke:var(--brand-500)}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
@media(hover:hover){
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
  .card:hover .card-media img{transform:scale(1.03)}
}

/* ---------- 案例证明 ---------- */
.case-wrap{display:grid;grid-template-columns:1fr;gap:20px}
.case-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.case-main img{width:100%;aspect-ratio:4/3;object-fit:cover}
.case-main-body{padding:26px;display:flex;flex-direction:column;gap:12px}
.case-main-body h3{font-size:22px}
.case-main-body p{color:var(--ink-500);font-size:15px}
.mini-badges{display:flex;flex-wrap:wrap;gap:10px}
.mini-badge{display:inline-flex;align-items:center;gap:6px;background:var(--accent-50);border:1px solid var(--accent-300);border-radius:999px;padding:5px 13px;font-size:13px;color:var(--ink-500)}
.mini-badge b{color:var(--accent-500);font-weight:800}
.case-rows{display:flex;flex-direction:column;gap:20px}
.case-row{display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:16px;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.case-row img{width:120px;height:90px;object-fit:cover;border-radius:var(--r-md);flex:0 0 auto}
.case-row h3{font-size:17px;margin-bottom:6px}
.case-row p{font-size:14px;color:var(--ink-500)}
.logo-strip{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;padding-top:26px;border-top:1px dashed var(--line)}
.logo-chip{flex:1 1 140px;min-height:62px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--ink-400);font-size:14px;font-weight:700;letter-spacing:.04em;filter:grayscale(1);transition:filter .18s ease,color .18s ease,transform .18s ease}
@media(min-width:1024px){
  .case-wrap{grid-template-columns:6fr 6fr;gap:24px}
}
@media(hover:hover){
  .case-main:hover,.case-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
  .logo-chip:hover{filter:grayscale(0);color:var(--brand-600);transform:translateY(-2px)}
}
@media(max-width:520px){
  .case-row{flex-direction:column}
  .case-row img{width:100%;height:160px}
}

/* ---------- CMS 资讯列表 ---------- */
.cms-layout{display:grid;grid-template-columns:1fr;gap:20px}
.cms-feature{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.cms-feature img{width:100%;height:230px;object-fit:cover}
.cms-feature-body{padding:24px;display:flex;flex-direction:column;gap:12px}
.cms-feature-body h3{font-size:21px}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink-500);font-size:15px}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;font-size:13.5px;color:var(--ink-400);margin-top:auto}
.cms-side{display:flex;flex-direction:column;gap:18px}
.cms-mini{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:14px;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease}
.cms-mini img{width:104px;height:78px;object-fit:cover;border-radius:var(--r-md);flex:0 0 auto}
.cms-mini h3{font-size:16px;margin:6px 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-mini .meta-row{margin-top:0;font-size:13px}
.empty-state{grid-column:1/-1;min-height:180px;border:1.5px dashed var(--line);border-radius:var(--r-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:28px;background:var(--surface)}
.empty-state svg{stroke:var(--ink-400)}
.empty-state p{color:var(--ink-500);font-size:15px}
@media(min-width:1024px){
  .cms-layout{grid-template-columns:6fr 6fr;gap:24px}
  .cms-feature img{height:100%;min-height:300px}
  .cms-feature{flex-direction:row}
  .cms-feature img{width:46%}
  .cms-feature-body{width:54%;padding:28px}
}
@media(hover:hover){
  .cms-feature:hover,.cms-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:28px}
.faq-aside h2{margin-top:12px}
.faq-aside p{color:var(--ink-500);font-size:15px;margin-top:12px;max-width:320px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:0 20px;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--sh-1);border-left:3px solid var(--brand-500)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 0;font-size:16.5px;font-weight:700;color:var(--ink-900)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-dot{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--brand-500);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;font-weight:700}
.faq-item[open] .faq-dot{background:var(--grad-brand);color:#fff;border-color:transparent}
.faq-item p{padding:0 0 20px 38px;color:var(--ink-500);font-size:15px}
@media(min-width:1024px){
  .faq-wrap{grid-template-columns:4fr 8fr;gap:40px}
  .faq-aside{position:sticky;top:148px;align-self:start}
}

/* ---------- CTA 表单 ---------- */
.cta-panel{position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad-night);color:#fff;padding:32px}
.cta-panel::before{content:"";position:absolute;top:-140px;right:-100px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(255,77,45,.42),rgba(255,77,45,0) 68%);filter:blur(80px);pointer-events:none}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:32px}
.cta-grid h2{color:#fff}
.cta-grid h2 + p{color:rgba(255,255,255,.72);font-size:15px;margin-top:12px}
.form-card{background:#fff;border-radius:var(--r-lg);padding:22px;margin-top:22px}
.form-row{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink-700);margin-bottom:7px}
.field label i{font-style:normal;color:var(--brand-500)}
.field input,.field select,.field textarea{width:100%;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px;font-size:15px;outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent-500);background:#fff;box-shadow:0 0 0 3px rgba(18,181,160,.14)}
.form-tip{display:none;margin-top:12px;font-size:14px;color:var(--accent-500);font-weight:700}
.form-tip.is-show{display:block}
.guarantee{display:flex;flex-direction:column;gap:16px}
.guarantee li{display:flex;gap:12px;align-items:flex-start;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);padding:16px}
.guarantee svg{flex:0 0 auto;margin-top:3px;stroke:var(--accent-300)}
.guarantee b{display:block;font-size:15.5px;color:#fff;margin-bottom:4px}
.guarantee span{font-size:14px;color:rgba(255,255,255,.68);line-height:1.65}
@media(min-width:768px){
  .cta-panel{padding:40px}
  .form-row{grid-template-columns:1fr 1fr}
  .form-row.full{grid-template-columns:1fr}
}
@media(min-width:1024px){.cta-grid{grid-template-columns:7fr 5fr;gap:44px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:rgba(255,255,255,.66);margin-top:56px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;margin-top:14px;max-width:320px;line-height:1.8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start}
.footer-contact svg{flex:0 0 auto;margin-top:4px;stroke:var(--accent-300)}
.footer-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.48)}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr 1.4fr;gap:28px}}
@media(hover:hover){.footer-col a:hover{color:var(--brand-300)}}

.to-top{position:fixed;right:20px;bottom:24px;z-index:50;width:46px;height:46px;border-radius:50%;border:0;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);cursor:pointer;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease,transform .2s ease}
.to-top.is-show{opacity:1;visibility:visible}
@media(hover:hover){.to-top:hover{transform:translateY(-3px)}}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card:hover,.cms-mini:hover,.case-row:hover,.step-item:hover,.step-main:hover{transform:none!important}
}

/* roulang page: article */
:root{
  --brand-500:#FF4D2D; --brand-600:#E63A1C; --brand-300:#FF9A6B;
  --accent-500:#12B5A0; --accent-300:#2ED3B7; --accent-50:#E6FBF6;
  --badge-400:#FFC53D; --badge-600:#C8890A;
  --ink-900:#16181C; --ink-800:#1F2228; --ink-700:#2A2E35; --ink-600:#414750; --ink-500:#5A6169; --ink-400:#8B929B;
  --line:#E8E2DA; --bg:#FDFAF6; --surface:#FFFFFF; --surface-2:#F6F1EA; --night:#14161A;
  --grad-brand:linear-gradient(118deg,#FF4D2D 0%,#FF7A45 46%,#FFC53D 100%);
  --grad-accent:linear-gradient(120deg,#0FA98F 0%,#2ED3B7 100%);
  --grad-night:linear-gradient(135deg,#14161A 0%,#20242B 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(22,24,28,.05), 0 10px 26px -16px rgba(22,24,28,.16);
  --sh-2:0 2px 4px rgba(22,24,28,.06), 0 18px 40px -18px rgba(255,77,45,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:140px;
}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.75;
  font-family:inherit;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{stroke:currentColor;fill:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(253,250,246,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96);}
.nav-top{display:flex;align-items:center;gap:16px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 8px 18px -10px rgba(255,77,45,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);}
.brand-sub{font-size:9px;letter-spacing:.24em;color:var(--ink-400);}
.nav-search{
  flex:1 1 auto;max-width:360px;margin-left:auto;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:0 16px;height:40px;color:var(--ink-400);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(18,181,160,.14);}
.nav-search input{flex:1;border:0;background:transparent;height:100%;font-size:14px;color:var(--ink-800);outline:none;}
.nav-search input::placeholder{color:var(--ink-400);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;line-height:1;
  padding:14px 28px;border:1.5px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,77,45,.9);}
.btn-ghost{background:var(--surface);border-color:var(--brand-500);color:var(--brand-600);}
.btn-dark{background:var(--grad-accent);color:var(--night);font-weight:800;}
.btn-sm{padding:11px 20px;font-size:14px;}
@media (hover:hover){
  .btn-primary:hover{filter:brightness(1.05);transform:translateY(-2px);box-shadow:var(--sh-2);}
  .btn-ghost:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);}
  .btn-dark:hover{filter:brightness(1.05);transform:translateY(-2px);}
}
.btn:active{transform:translateY(0);}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);position:relative;}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--ink-800);border-radius:2px;transform:translate(-50%,-50%);
}
.burger span::before,.burger span::after{content:"";left:0;transform:none;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.nav-channels{
  display:flex;align-items:center;gap:10px;
  height:52px;overflow-x:auto;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-600);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
@media (hover:hover){
  .pill:hover{color:var(--brand-600);border-color:var(--brand-300);transform:translateY(-1px);}
}
.pill[aria-current="page"],.pill.is-current{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:0 10px 20px -14px rgba(255,77,45,.9);}
.drawer{display:none;}

/* ---------- main / layout ---------- */
main{padding:28px 0 0;}
.article-grid{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-500);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-500);transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--ink-400);}
.breadcrumb .current{color:var(--ink-800);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{margin-bottom:26px;}
.article-head h1{
  font-size:28px;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);
  margin-bottom:16px;
}
@media (min-width:768px){.article-head h1{font-size:38px;line-height:1.2;}}
@media (min-width:1024px){.article-head h1{font-size:42px;line-height:1.15;}}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:14px;color:var(--ink-500);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;
  background:var(--accent-50);border:1px solid var(--accent-300);color:var(--accent-500);
}
.meta-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-600);
}
.article-cover{
  margin:24px 0 8px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--surface-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- article body ---------- */
.article-body{max-width:760px;margin-top:32px;font-size:16px;line-height:1.75;color:var(--ink-700);}
.article-body > * + *{margin-top:1.25em;}
.article-body p{margin:0;}
.article-body h2{
  position:relative;font-size:22px;line-height:1.35;font-weight:800;color:var(--ink-900);
  letter-spacing:-.01em;margin-top:32px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background:var(--brand-500);
}
@media (min-width:768px){.article-body h2{font-size:26px;}}
.article-body h3{font-size:20px;font-weight:700;color:var(--ink-900);margin-top:1.6em;}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink-800);}
.article-body blockquote{
  background:var(--surface-2);border-left:4px solid var(--accent-500);
  border-radius:0 var(--r-md) var(--r-md) 0;padding:18px 22px;font-size:18px;line-height:1.75;color:var(--ink-800);
}
.article-body blockquote p + p{margin-top:.8em;}
.article-body ul,.article-body ol{padding-left:1.4em;line-height:1.85;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li + li{margin-top:.4em;}
.article-body a{color:var(--brand-600);font-weight:600;border-bottom:2px solid var(--brand-300);}
.article-body img{border-radius:var(--r-md);margin-inline:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:14px;color:var(--ink-500);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;}
.article-body thead{background:var(--surface-2);}
.article-body th,.article-body td{padding:12px 16px;border:1px solid var(--line);text-align:left;}
.article-body th{font-weight:700;color:var(--ink-800);}
.article-body pre,.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--night);color:var(--accent-300);
}
.article-body pre{border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body :not(pre) > code{background:var(--surface-2);color:var(--brand-600);padding:2px 7px;border-radius:6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1.5px dashed var(--line);border-radius:var(--r-lg);background:var(--surface);
  padding:36px 24px;text-align:center;
}
.empty-state svg{color:var(--brand-300);}
.empty-state p{font-size:15px;color:var(--ink-500);}
.empty-state h2{font-size:20px;font-weight:800;color:var(--ink-900);}

/* ---------- aside ---------- */
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:22px;
}
.aside-card + .aside-card{margin-top:20px;}
.aside-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:800;color:var(--ink-900);margin-bottom:14px;letter-spacing:-.01em;
}
.aside-title::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--grad-brand);}
.progress-track{height:4px;border-radius:999px;background:var(--surface-2);overflow:hidden;margin-top:12px;}
.progress-bar{height:100%;width:0;background:var(--grad-brand);border-radius:999px;transition:width .12s linear;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:8px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-600);
  border-left:2px solid transparent;transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.toc-list a:hover{background:var(--surface-2);color:var(--brand-600);border-left-color:var(--brand-500);}
.aside-links{display:flex;flex-direction:column;gap:10px;}
.aside-link{
  display:flex;align-items:center;gap:12px;
  padding:12px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface-2);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.aside-link img{width:64px;height:48px;border-radius:var(--r-sm);object-fit:cover;flex:0 0 auto;}
.aside-link strong{display:block;font-size:14px;color:var(--ink-900);font-weight:700;}
.aside-link span{font-size:12px;color:var(--ink-500);}
@media (hover:hover){
  .aside-link:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--sh-1);}
}
@media (min-width:1024px){
  .article-aside{position:sticky;top:132px;}
}

/* ---------- related / pager ---------- */
.related{margin-top:64px;}
.related h2{
  font-size:22px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;margin-bottom:20px;
}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
@media (hover:hover){
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
  .card:hover .card-img img{transform:scale(1.03);}
}
.card-img{overflow:hidden;background:var(--surface-2);}
.card-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease);}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.45;}
.card-body p{font-size:14px;color:var(--ink-500);line-height:1.65;}
.card-meta{margin-top:auto;font-size:13px;color:var(--ink-400);}
.tag{
  align-self:flex-start;display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:13px;font-weight:700;background:var(--accent-50);border:1px solid var(--accent-300);color:var(--accent-500);
}
.pager{
  display:grid;grid-template-columns:1fr;gap:14px;margin-top:32px;
}
@media (min-width:640px){.pager{grid-template-columns:1fr 1fr;}}
.pager a,.pager span{
  display:block;padding:18px 20px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);
  font-size:14px;font-weight:700;color:var(--ink-700);transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.pager small{display:block;font-size:12px;color:var(--ink-400);font-weight:600;margin-bottom:6px;letter-spacing:.04em;}
@media (hover:hover){.pager a:hover{border-color:var(--brand-300);transform:translateY(-2px);}}
.related-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--grad-night);color:#C9CDD4;margin-top:80px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr 1.3fr;gap:28px;}}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#7C838C;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9AA1A9;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#9AA1A9;transition:color .16s var(--ease);}
.footer-col a:hover{color:var(--brand-300);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#9AA1A9;line-height:1.7;}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--accent-300);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:#7C838C;
}
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:999px;display:none;place-items:center;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);color:var(--brand-600);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.to-top.show{display:grid;}
@media (hover:hover){.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}}

/* ---------- responsive nav ---------- */
@media (max-width:1023px){
  .nav-search{display:none;}
}
@media (max-width:767px){
  .nav-cta{display:none;}
  .burger{display:block;margin-left:auto;}
  .nav-channels{display:none;}
  .drawer{
    display:block;max-height:0;overflow:hidden;background:var(--surface);
    border-top:1px solid var(--line);transition:max-height .25s var(--ease);
  }
  .drawer.open{max-height:340px;}
  .drawer-inner{padding:16px 20px 22px;display:flex;flex-direction:column;gap:10px;}
  .drawer-inner .pill{width:100%;text-align:left;padding:12px 16px;border-radius:var(--r-md);}
  .drawer-search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:0 14px;height:42px;background:var(--surface-2);color:var(--ink-400);}
  .drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;}
  .drawer-inner .btn{width:100%;margin-top:4px;}
}
@media (max-width:520px){
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .article-head h1{font-size:26px;}
  .card-body{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand-500:#FF4D2D; --brand-600:#E63A1C; --brand-300:#FF9A6B;
  --accent-500:#12B5A0; --accent-300:#2ED3B7; --accent-50:#E6FBF6;
  --badge-400:#FFC53D; --badge-600:#C8890A;
  --ink-900:#16181C; --ink-700:#2A2E35; --ink-500:#5A6169; --ink-400:#8B929B;
  --line:#E8E2DA; --bg:#FDFAF6; --surface:#FFFFFF; --surface-2:#F6F1EA; --night:#14161A;
  --grad-brand:linear-gradient(118deg,#FF4D2D 0%,#FF7A45 46%,#FFC53D 100%);
  --grad-accent:linear-gradient(120deg,#0FA98F 0%,#2ED3B7 100%);
  --grad-night:linear-gradient(135deg,#14161A 0%,#20242B 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(22,24,28,.05), 0 10px 26px -16px rgba(22,24,28,.16);
  --sh-2:0 2px 4px rgba(22,24,28,.06), 0 18px 40px -18px rgba(255,77,45,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-top{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 6px 16px -8px rgba(255,77,45,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--ink-400)}
.nav-search{
  display:flex;align-items:center;gap:8px;flex:1;max-width:380px;margin-left:auto;
  height:40px;padding:0 16px;border-radius:999px;background:var(--surface-2);
  border:1px solid var(--line);transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent-500);background:#fff}
.nav-search svg{flex:none;stroke:var(--ink-400)}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-cta{flex:none;margin-left:0}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;border-radius:2px}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.nav-channels{
  display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none}
.pill{
  flex:none;scroll-snap-align:start;display:inline-flex;align-items:center;height:34px;padding:0 18px;
  border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-500);
  font-size:14px;font-weight:600;white-space:nowrap;transition:all .18s var(--ease);
}
.pill[aria-current="page"]{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 8px 18px -10px rgba(255,77,45,.8)}
@media (hover:hover){
  .pill:hover{color:var(--ink-900);border-color:var(--brand-300)}
  .pill[aria-current="page"]:hover{color:#fff}
}
.drawer{display:none}
.drawer.is-open{display:block}
.drawer-inner{border-top:1px solid var(--line);background:var(--surface);padding:14px 0 20px}
.drawer-inner .drawer-link{display:block;padding:12px 0;font-size:15px;font-weight:600;color:var(--ink-700);border-bottom:1px dashed var(--line)}
.drawer-inner .drawer-link[aria-current="page"]{color:var(--brand-600)}
.drawer-inner .btn{margin-top:16px;width:100%;justify-content:center}

@media (max-width:900px){
  .nav-search{display:none}
}
@media (max-width:768px){
  .nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-top{height:60px}
  .brand-sub{display:none}
}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;padding:14px 28px;
  border:1.5px solid transparent;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px -14px rgba(255,77,45,.9)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-500)}
.btn-accent{background:var(--grad-accent);color:#0B1F1B}
.btn:active{transform:translateY(0)}
@media (hover:hover){
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,77,45,.95);filter:brightness(1.05)}
  .btn-ghost:hover{background:var(--brand-500);color:#fff;transform:translateY(-2px)}
  .btn-accent:hover{transform:translateY(-2px);filter:brightness(1.04)}
}

/* ============ BANNER ============ */
.page-banner{position:relative;min-height:280px;display:flex;align-items:flex-end;overflow:hidden;background:var(--night)}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,22,26,.90) 0%,rgba(20,22,26,.72) 48%,rgba(20,22,26,.42) 100%);
}
.banner-inner{position:relative;z-index:2;padding:56px 0 40px;width:100%}
.banner-crumb{font-size:13px;color:rgba(255,255,255,.68);display:flex;gap:8px;align-items:center;margin-bottom:14px}
.banner-crumb a{color:rgba(255,255,255,.68)}
.banner-crumb span.sep{opacity:.5}
.banner-inner h1{color:#fff;font-size:44px;line-height:1.15;max-width:760px}
.banner-lead{color:rgba(255,255,255,.82);font-size:16px;line-height:1.72;max-width:680px;margin-top:14px}
.banner-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.metric-pill{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:999px;
  background:var(--accent-50);border:1px solid var(--accent-300);color:var(--ink-900);font-size:13px;font-weight:600;
}
.metric-pill b{color:var(--accent-500);font-weight:800;font-variant-numeric:tabular-nums}
@media (max-width:1024px){ .banner-inner h1{font-size:36px} }
@media (max-width:640px){
  .page-banner{min-height:200px}
  .banner-inner{padding:36px 0 28px}
  .banner-inner h1{font-size:28px}
  .banner-lead{font-size:15px}
}

/* ============ SECTION ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);
  letter-spacing:.06em;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad-brand)}
.section-head h2{font-size:30px}
.section-head p{margin-top:12px;color:var(--ink-500);font-size:16px}
@media (max-width:640px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head h2{font-size:22px}
  .section-head{margin-bottom:28px}
}

/* ============ FILTER ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-500);font-size:14px;font-weight:600;
}
.filter-pill.is-active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 8px 18px -10px rgba(255,77,45,.75)}

/* ============ CARD GRID ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card-media{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-50);border:1px solid var(--accent-300);color:#0B6A5D;font-size:12px;font-weight:700;
}
.card h3{font-size:20px}
.card h3 a{color:var(--ink-900)}
.card-desc{font-size:15px;color:var(--ink-500);line-height:1.7}
.card-points{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.card-points li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-500)}
.card-points li::before{
  content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:3px;
  background:var(--grad-brand);
}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-600);
}
.card-link::after{content:"→";transition:transform .18s var(--ease)}
.card--feature{grid-column:span 2;grid-row:span 2}
.card--feature .card-media{aspect-ratio:16/9}
.card--feature .card-body{padding:26px 28px;gap:14px}
.card--feature h3{font-size:24px}
.card--feature .card-desc{font-size:16px}
.card--feature .card-points{gap:10px}
.card--feature .card-points li{font-size:15px}
@media (hover:hover){
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
  .card:hover .card-media img{transform:scale(1.03)}
  .card:hover .card-link::after{transform:translateX(4px)}
}
@media (max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .card--feature{grid-column:span 2;grid-row:auto}
  .card--feature h3{font-size:21px}
}
@media (max-width:640px){
  .cat-grid{grid-template-columns:1fr;gap:16px}
  .card--feature{grid-column:span 1}
  .card-body{padding:18px}
}

/* ============ TIMELINE / FLOW ============ */
.flow-wrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.flow-aside h2{font-size:30px}
.flow-aside p{margin-top:12px;color:var(--ink-500);font-size:15px}
.flow-list{position:relative;padding-left:28px}
.flow-list::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand-500),var(--accent-300))}
.flow-item{position:relative;padding:0 0 28px 0}
.flow-item:last-child{padding-bottom:0}
.flow-item::before{
  content:"";position:absolute;left:-27px;top:5px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-500);
}
.flow-item h3{font-size:18px;display:flex;align-items:baseline;gap:10px}
.flow-item h3 .idx{font-size:14px;color:var(--brand-300);font-weight:800;font-variant-numeric:tabular-nums}
.flow-item p{margin-top:6px;font-size:15px;color:var(--ink-500)}
@media (max-width:1024px){
  .flow-wrap{grid-template-columns:1fr;gap:28px}
  .flow-aside h2{font-size:24px}
}

/* ============ SPEC ROWS ============ */
.spec-rows{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.spec-row{
  display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 22px;box-shadow:var(--sh-1);transition:border-color .18s var(--ease),transform .18s var(--ease)
}
.spec-row .ico{
  flex:none;width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--accent-50);border:1px solid var(--accent-300);
}
.spec-row .ico svg{stroke:var(--accent-500)}
.spec-row h3{font-size:17px}
.spec-row p{margin-top:6px;font-size:14px;color:var(--ink-500)}
@media (hover:hover){ .spec-row:hover{border-color:var(--brand-300);transform:translateY(-3px)} }
@media (max-width:900px){ .spec-rows{grid-template-columns:1fr} }

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-aside{position:sticky;top:140px}
.faq-aside h2{font-size:30px}
.faq-aside p{margin-top:12px;color:var(--ink-500);font-size:15px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative;padding-left:0;transition:padding-left .2s var(--ease)}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--brand-500);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item[open]{padding-left:16px}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:20px 4px;font-size:17px;font-weight:700;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .mark{
  flex:none;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line);
  display:grid;place-items:center;color:var(--brand-600);font-weight:700;font-size:15px;line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item[open] summary .mark{background:var(--grad-brand);border-color:transparent;color:#fff}
.faq-item .faq-body{padding:0 4px 22px 40px;color:var(--ink-500);font-size:15px;line-height:1.8}
@media (hover:hover){ .faq-item summary:hover .mark{border-color:var(--brand-300)} }
@media (max-width:1024px){
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .faq-aside{position:static}
  .faq-aside h2{font-size:24px}
}

/* ============ CTA STRIP ============ */
.cta-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--surface-2);border:1px solid var(--brand-300);border-radius:var(--r-lg);
  padding:32px 36px;box-shadow:var(--sh-1);
}
.cta-strip h2{font-size:24px}
.cta-strip p{margin-top:8px;color:var(--ink-500);font-size:15px;max-width:640px}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:640px){
  .cta-strip{padding:24px;border-radius:var(--r-md)}
  .cta-strip h2{font-size:20px}
  .cta-strip .cta-actions{width:100%}
  .cta-strip .cta-actions .btn{width:100%}
}

/* ============ FOOTER ============ */
.site-footer{background:var(--night);color:rgba(255,255,255,.72);margin-top:0}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr 1.4fr;gap:32px;padding:64px 0 40px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.42)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .18s var(--ease)}
@media (hover:hover){ .footer-col a:hover{color:var(--brand-300)} }
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.62);line-height:1.65}
.footer-contact svg{flex:none;margin-top:3px;stroke:var(--brand-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
@media (max-width:1024px){ .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px} .footer-brand{grid-column:span 2} }
@media (max-width:640px){ .footer-grid{grid-template-columns:1fr} .footer-brand{grid-column:span 1} }

/* ============ BACK TO TOP ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;border:0;cursor:pointer;
  box-shadow:0 12px 26px -12px rgba(255,77,45,.9);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
@media (max-width:640px){ .to-top{right:16px;bottom:16px;width:42px;height:42px} }

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --brand-500:#FF4D2D; --brand-600:#E63A1C; --brand-300:#FF9A6B;
  --accent-500:#12B5A0; --accent-300:#2ED3B7; --accent-50:#E6FBF6;
  --badge-400:#FFC53D; --badge-600:#C8890A;
  --ink-900:#16181C; --ink-700:#2A2E35; --ink-500:#5A6169; --ink-400:#8B929B;
  --line:#E8E2DA; --bg:#FDFAF6; --surface:#FFFFFF; --surface-2:#F6F1EA; --night:#14161A;
  --grad-brand:linear-gradient(118deg,#FF4D2D 0%,#FF7A45 46%,#FFC53D 100%);
  --grad-accent:linear-gradient(120deg,#0FA98F 0%,#2ED3B7 100%);
  --grad-night:linear-gradient(135deg,#14161A 0%,#20242B 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(22,24,28,.05), 0 10px 26px -16px rgba(22,24,28,.16);
  --sh-2:0 2px 4px rgba(22,24,28,.06), 0 18px 40px -18px rgba(255,77,45,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:136px;-webkit-text-size-adjust:100%}
body{
  margin:0; padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px; line-height:1.75; color:var(--ink-700);
  background:var(--bg); overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.01em;font-weight:800;line-height:1.2}
p{margin:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-top{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(255,77,45,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.02em}
.brand-sub{font-size:9px;letter-spacing:.16em;color:var(--ink-400);font-weight:600}
.nav-search{
  margin-left:auto;display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:999px;width:300px;max-width:34vw;
}
.nav-search svg{stroke:var(--ink-400);flex-shrink:0}
.nav-search input{flex:1;min-width:0;border:none;background:transparent;outline:none;font-size:14px;color:var(--ink-700)}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search:focus-within{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(18,181,160,.14)}
.nav-cta{flex-shrink:0}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--surface);
  cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.burger span{display:block;width:16px;height:2px;background:var(--ink-700);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink-700);border-radius:2px}
.burger span::before{top:-5px}
.burger span::after{top:5px}

.nav-channels{
  display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none}
.pill{
  scroll-snap-align:start;flex-shrink:0;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;background:var(--surface-2);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-700);white-space:nowrap;transition:all .18s var(--ease);
}
.pill:hover{color:var(--brand-600);border-color:var(--brand-300)}
.pill[aria-current="page"]{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 10px 20px -12px rgba(255,77,45,.8)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:700;cursor:pointer;border:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 12px 24px -14px rgba(255,77,45,.85)}
.btn-secondary{background:var(--surface);color:var(--brand-600);border:1.5px solid var(--brand-500)}
.btn-accent{background:var(--grad-accent);color:var(--night)}
@media (hover:hover){
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 30px -14px rgba(255,77,45,.9);filter:brightness(1.05)}
  .btn-secondary:hover{background:var(--brand-500);color:#fff;transform:translateY(-2px)}
  .btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 28px -16px rgba(18,181,160,.9)}
}
.btn:active{transform:translateY(0)}

/* ---------- Page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--night)}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(1.05);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,22,26,.62) 0%,rgba(20,22,26,.86) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:44px 0 40px;max-width:760px}
@media (min-width:1024px){.page-hero-inner{padding:60px 0 54px}}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb span[aria-current]{color:#fff;font-weight:600}
.page-hero h1{color:#fff;font-size:28px;line-height:1.22;margin-bottom:14px}
@media (min-width:768px){.page-hero h1{font-size:36px}}
@media (min-width:1024px){.page-hero h1{font-size:42px}}
.page-hero-desc{color:rgba(255,255,255,.86);font-size:15.5px;line-height:1.8;max-width:640px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.stat-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:rgba(230,251,246,.14);border:1px solid rgba(46,211,183,.55);color:#fff;font-size:13.5px;font-weight:600;
  backdrop-filter:blur(2px);
}
.stat-chip b{font-size:16px;color:var(--accent-300);font-weight:800;font-variant-numeric:tabular-nums}
.stat-chip svg{stroke:var(--accent-300);flex-shrink:0}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:92px 0}}
.section-head{max-width:720px;margin-bottom:28px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);
  letter-spacing:.04em;margin-bottom:10px;
}
.section-head .eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad-brand)}
.section-head h2{font-size:22px;margin-bottom:12px}
@media (min-width:1024px){.section-head h2{font-size:30px}}
.section-head p{color:var(--ink-500);font-size:15.5px}
.section-alt{background:var(--surface-2)}

/* ---------- Filter bar ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.filter-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-500);
  transition:all .18s var(--ease);
}
.filter-pill.is-active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 10px 22px -14px rgba(255,77,45,.85)}
.filter-pill:hover{border-color:var(--brand-300);color:var(--brand-600)}

/* ---------- Card grid ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr);gap:24px}}

.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
@media (hover:hover){
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
  .card:hover .card-media img{transform:scale(1.03)}
}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card-media::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(180deg,rgba(20,22,26,0) 30%,rgba(20,22,26,.72))}
.card-tag{
  position:absolute;left:12px;bottom:12px;z-index:2;display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.42);
  color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:blur(3px);
}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.35}
.card-desc{font-size:14.5px;color:var(--ink-500);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.dot-item{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--accent-500);font-weight:600;
  background:var(--accent-50);border-radius:999px;padding:4px 10px;
}
.dot-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-500)}
.card-link{font-size:14px;font-weight:700;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px;padding-top:4px}
.card-link svg{stroke:var(--brand-600);transition:transform .18s var(--ease)}
@media (hover:hover){.card-link:hover svg{transform:translateX(4px)}}

.card-feature{grid-column:span 1}
@media (min-width:640px){.card-feature{grid-column:span 2}}
@media (min-width:1024px){.card-feature{grid-column:span 2;grid-row:span 2}}
@media (min-width:1024px){
  .card-feature .card-media{aspect-ratio:16/9;flex:1;min-height:230px}
  .card-feature .card-body h3{font-size:22px}
  .card-feature .card-desc{font-size:15px;-webkit-line-clamp:3}
}
.feature-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.metric-chip{
  display:inline-flex;align-items:baseline;gap:6px;padding:7px 14px;border-radius:999px;
  background:var(--accent-50);border:1px solid var(--accent-300);color:var(--ink-700);font-size:13px;font-weight:600;
}
.metric-chip b{color:var(--accent-500);font-size:16px;font-weight:800;font-variant-numeric:tabular-nums}

/* ---------- Row cards ---------- */
.row-list{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:1024px){.row-list{grid-template-columns:1fr;gap:18px}}
.row-card{
  display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:14px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
@media (hover:hover){
  .row-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
  .row-card:hover .row-thumb img{transform:scale(1.05)}
}
.row-thumb{width:120px;height:90px;flex-shrink:0;border-radius:var(--r-md);overflow:hidden;background:var(--surface-2)}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.row-body h3{font-size:17px;margin-bottom:6px}
.row-body p{font-size:14px;color:var(--ink-500);line-height:1.7}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:1fr;gap:16px;position:relative}
@media (min-width:768px){.timeline{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.timeline{grid-template-columns:repeat(4,1fr);gap:24px}}
.tl-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.tl-num{
  font-size:36px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--brand-300);
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.tl-item h3{font-size:17px;margin-bottom:8px}
.tl-item p{font-size:14px;color:var(--ink-500);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:40px;align-items:start}}
.faq-side{position:relative}
@media (min-width:1024px){.faq-side{position:sticky;top:150px}}
.faq-side h2{font-size:22px;margin-bottom:12px}
@media (min-width:1024px){.faq-side h2{font-size:28px}}
.faq-side p{font-size:14.5px;color:var(--ink-500)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:12px;
  padding:18px 0 18px 0;font-size:16px;font-weight:700;color:var(--ink-900);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"+";flex-shrink:0;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:var(--accent-500);
  transition:all .2s var(--ease);margin-top:2px;
}
.faq-item[open] summary::before{content:"−";background:var(--accent-50);border-color:var(--accent-300)}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open]::after{content:"";position:absolute;left:-14px;top:18px;bottom:18px;width:3px;border-radius:3px;background:var(--brand-500)}
.faq-answer{padding:0 0 20px 36px;font-size:14.8px;color:var(--ink-500);line-height:1.85}
@media (hover:hover){.faq-item summary:hover{color:var(--brand-600)}}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:var(--surface-2);border:1px solid var(--brand-300);border-radius:var(--r-xl);
  padding:26px 22px;display:flex;flex-direction:column;gap:18px;align-items:flex-start;
}
@media (min-width:768px){.cta-strip{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 34px}}
.cta-strip h2{font-size:19px;margin-bottom:6px}
.cta-strip p{font-size:14.5px;color:var(--ink-500)}

/* ---------- Footer ---------- */
.site-footer{background:var(--night);color:rgba(255,255,255,.68);margin-top:70px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:52px 0 34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2.1fr 1fr 1fr 1fr 1.4fr;gap:32px}}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.42)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-contact span{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s var(--ease)}
@media (hover:hover){.footer-col a:hover{color:var(--brand-300)}}
.footer-contact li{display:flex;align-items:flex-start;gap:9px}
.footer-contact svg{stroke:var(--accent-300);flex-shrink:0;margin-top:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.48);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* ---------- Drawer & back to top ---------- */
.drawer{
  position:fixed;inset:64px 0 auto 0;z-index:55;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--sh-2);padding:18px 20px 24px;
  transform:translateY(-12px);opacity:0;visibility:hidden;transition:all .22s var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer .pill{width:100%;justify-content:flex-start;height:44px;border-radius:var(--r-md);margin-bottom:10px}
.drawer .btn{width:100%;margin-top:6px}
.to-top{
  position:fixed;right:20px;bottom:22px;z-index:58;width:46px;height:46px;border-radius:50%;
  border:none;background:var(--grad-brand);color:#fff;cursor:pointer;box-shadow:0 14px 26px -12px rgba(255,77,45,.9);
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .22s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible}

@media (max-width:1023px){
  .nav-search{display:none}
}
@media (max-width:767px){
  .nav-cta{display:none}
  .burger{display:flex;margin-left:auto}
  .nav-top{gap:10px}
}
@media (min-width:768px){
  .burger{display:none}
  .drawer{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .card:hover,.row-card:hover,.btn:hover{transform:none !important}
}

/* roulang page: category3 */
:root{
  --brand-500:#FF4D2D; --brand-600:#E63A1C; --brand-300:#FF9A6B;
  --accent-500:#12B5A0; --accent-300:#2ED3B7; --accent-50:#E6FBF6;
  --badge-400:#FFC53D; --badge-600:#C8890A;
  --ink-900:#16181C; --ink-700:#2A2E35; --ink-500:#5A6169; --ink-400:#8B929B;
  --line:#E8E2DA; --bg:#FDFAF6; --surface:#FFFFFF; --surface-2:#F6F1EA; --night:#14161A;
  --grad-brand:linear-gradient(118deg,#FF4D2D 0%,#FF7A45 46%,#FFC53D 100%);
  --grad-accent:linear-gradient(120deg,#0FA98F 0%,#2ED3B7 100%);
  --grad-night:linear-gradient(135deg,#14161A 0%,#20242B 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --sh-1:0 1px 2px rgba(22,24,28,.05),0 10px 26px -16px rgba(22,24,28,.16);
  --sh-2:0 2px 4px rgba(22,24,28,.06),0 18px 40px -18px rgba(255,77,45,.30);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:140px;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);}
.nav-top{display:flex;align-items:center;gap:14px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(255,77,45,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;}
.brand-sub{font-size:9px;letter-spacing:.16em;color:var(--ink-400);}
.nav-search{
  display:flex;align-items:center;gap:8px;height:42px;flex:1 1 auto;max-width:380px;margin-left:auto;
  padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2);
  transition:border-color .18s ease,background .18s ease;
}
.nav-search svg{stroke:var(--ink-400);flex:0 0 auto;}
.nav-search input{flex:1 1 auto;width:100%;border:0;background:transparent;font-size:14px;outline:none;}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search:focus-within{border-color:var(--accent-500);background:#fff;}
.nav-cta{margin-left:4px;}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;border-radius:2px;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.nav-channels{
  display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
  position:sticky;top:64px;z-index:55;background:rgba(253,250,246,.96);
  border-bottom:1px solid var(--line);
}
.nav-channels::-webkit-scrollbar{display:none;}
.pill{
  scroll-snap-align:start;white-space:nowrap;font-size:14px;padding:7px 18px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-500);
  transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease;
}
.pill[aria-current="page"]{background:var(--grad-brand);color:#fff;border-color:transparent;font-weight:600;box-shadow:0 10px 22px -14px rgba(255,77,45,.9);}
.pill:hover{color:var(--brand-600);border-color:var(--brand-300);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 12px 26px -16px rgba(255,77,45,.95);}
.btn-ghost{background:#fff;color:var(--brand-600);border:1.5px solid var(--brand-500);}
.btn-dark{background:var(--grad-accent);color:var(--night);font-weight:700;}
.btn-text{color:var(--brand-600);font-weight:600;font-size:14px;padding:0;border-radius:0;}
.btn-text::after{content:"";display:block;height:2px;width:100%;background:var(--grad-brand);opacity:.85;}

/* ===== 页头横幅 ===== */
.page-hero{padding:36px 0 0;}
.page-hero-inner{
  position:relative;min-height:280px;border-radius:var(--r-xl);overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:36px 40px;color:#fff;border:8px solid #fff;box-shadow:var(--sh-1);
  background-image:linear-gradient(180deg,rgba(20,22,26,.28) 0%,rgba(20,22,26,.82) 100%),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
}
.page-hero-inner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:var(--grad-brand);opacity:.28;filter:blur(80px);pointer-events:none;
}
.crumb{font-size:14px;color:rgba(255,255,255,.78);margin-bottom:14px;position:relative;z-index:2;}
.crumb a:hover{color:#fff;}
.crumb span[aria-current]{color:#fff;}
.hero-h1{font-size:44px;color:#fff;position:relative;z-index:2;text-shadow:0 2px 18px rgba(0,0,0,.35);}
.hero-lead{position:relative;z-index:2;max-width:780px;margin-top:12px;font-size:16px;color:rgba(255,255,255,.9);}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;position:relative;z-index:2;}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  font-size:13px;background:rgba(230,251,246,.94);border:1px solid var(--accent-300);color:var(--ink-700);
}
.badge .badge-num{font-weight:800;color:var(--accent-500);}
.badge svg{stroke:var(--accent-500);}

/* ===== 通用板块 ===== */
.section{padding:56px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-title{font-size:30px;}
.section-desc{margin-top:8px;font-size:15px;color:var(--ink-500);max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);
  background:#fff;border:1px solid var(--brand-300);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}

/* ===== 筛选条 ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--sh-1);}
.filter-pill{font-size:14px;padding:8px 18px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-500);cursor:pointer;transition:all .18s ease;}
.filter-pill.is-active{background:var(--grad-brand);color:#fff;border-color:transparent;font-weight:600;}
.filter-pill:hover{color:var(--brand-600);border-color:var(--brand-300);}

/* ===== 卡片网格 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,border-color .18s ease;
}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card-title{font-size:20px;line-height:1.35;}
.card-text{font-size:15px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-points{display:flex;flex-wrap:wrap;gap:8px;}
.card-point{font-size:13px;color:var(--accent-500);background:var(--accent-50);border:1px solid var(--accent-300);border-radius:999px;padding:4px 12px;}
.card-foot{margin-top:auto;padding-top:6px;}
.card-feature{grid-column:span 2;grid-row:span 2;}
.card-feature .card-media{aspect-ratio:auto;flex:1 1 auto;min-height:260px;}
.card-feature .card-body{padding:26px;}
.card-feature .card-title{font-size:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--brand-600);background:#FFF1EA;border:1px solid var(--brand-300);
  border-radius:999px;padding:4px 12px;width:fit-content;
}

/* ===== 指标条 ===== */
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.metric{
  background:var(--accent-50);border:1px solid var(--accent-300);border-radius:var(--r-md);
  padding:20px 22px;
}
.metric-num{font-size:28px;font-weight:800;color:var(--accent-500);}
.metric-label{font-size:14px;color:var(--ink-500);margin-top:4px;}

/* ===== 数据表 ===== */
.table-wrap{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow-x:auto;box-shadow:var(--sh-1);}
table{width:100%;border-collapse:collapse;min-width:680px;}
th,td{text-align:left;padding:14px 18px;font-size:15px;border-bottom:1px solid var(--line);}
th{background:var(--surface-2);font-size:14px;color:var(--ink-900);font-weight:700;}
td:first-child{font-weight:600;color:var(--ink-900);}
tbody tr:last-child td{border-bottom:0;}

/* ===== 时间轴流程 ===== */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px;}
.flow::before{content:"";position:absolute;left:6%;right:6%;top:22px;height:2px;background:linear-gradient(90deg,var(--brand-300),var(--accent-300));opacity:.55;}
.flow-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.flow-dot{
  width:44px;height:44px;border-radius:50%;background:var(--grad-brand);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;position:relative;z-index:2;
}
.flow-title{font-size:18px;margin-bottom:8px;}
.flow-text{font-size:14px;color:var(--ink-500);}

/* ===== 场景 1+2 ===== */
.scene-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:26px;}
.scene-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;}
.scene-main img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-main-body{padding:26px;}
.scene-side{display:grid;gap:24px;}
.scene-row{display:grid;grid-template-columns:130px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:var(--sh-1);align-items:center;}
.scene-row img{width:130px;height:98px;object-fit:cover;border-radius:var(--r-md);}
.scene-row h3{font-size:17px;margin-bottom:6px;}
.scene-row p{font-size:14px;color:var(--ink-500);}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start;margin-top:12px;}
.faq-side{position:sticky;top:150px;}
.faq-side h2{font-size:26px;}
.faq-side p{margin-top:12px;font-size:15px;color:var(--ink-500);}
.faq-list{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;gap:14px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--brand-300);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;line-height:1;
}
.faq-item[open] summary{color:var(--brand-600);}
.faq-item[open] .faq-mark{background:var(--grad-brand);color:#fff;border-color:transparent;}
.faq-answer{padding:0 0 22px 40px;font-size:15px;color:var(--ink-500);border-left:3px solid transparent;}
.faq-item[open] .faq-answer{border-left:3px solid var(--brand-500);padding-left:16px;margin-left:8px;}

/* ===== 轻量 CTA ===== */
.cta-bar{
  margin-top:56px;background:var(--surface-2);border:1px solid var(--brand-300);border-radius:var(--r-lg);
  padding:30px 34px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-bar h2{font-size:24px;}
.cta-bar p{margin-top:8px;font-size:15px;color:var(--ink-500);max-width:640px;}

/* ===== 页脚 ===== */
.site-footer{margin-top:72px;background:var(--grad-night);color:#C9CDD3;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.3fr;gap:32px;padding:56px 0 40px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#8B929B;}
.footer-brand p{margin-top:16px;font-size:14px;color:#9AA1AA;line-height:1.8;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:#9AA1AA;transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#9AA1AA;}
.footer-contact svg{stroke:var(--accent-300);flex:0 0 auto;margin-top:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8B929B;
}
.footer-bottom a{color:#8B929B;}
.footer-bottom a:hover{color:#fff;}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 16px 32px -16px rgba(255,77,45,.95);z-index:70;opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.to-top.is-show{opacity:1;pointer-events:auto;}
.to-top svg{stroke:#fff;}

/* ===== 可交互态 ===== */
@media (hover:hover){
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 34px -16px rgba(255,77,45,1);}
  .btn-ghost:hover{background:var(--brand-500);color:#fff;border-color:var(--brand-500);transform:translateY(-2px);}
  .btn-dark:hover{transform:translateY(-2px);filter:brightness(1.04);}
  .btn:active{transform:translateY(0);}
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
  .card:hover .card-media img{transform:scale(1.03);}
  .flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
  .scene-row:hover{border-color:var(--brand-300);box-shadow:var(--sh-2);}
  .faq-item summary:hover{color:var(--brand-600);}
  .to-top:hover{transform:translateY(-3px);}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .card-feature{grid-column:span 2;grid-row:auto;}
  .card-feature .card-media{aspect-ratio:16/10;min-height:0;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .scene-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:20px;}
  .faq-side{position:static;}
  .footer-grid{grid-template-columns:repeat(3,1fr);}
  .hero-h1{font-size:36px;}
  .page-hero-inner{padding:28px 26px;min-height:260px;}
}
@media (max-width:767px){
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;margin-left:auto;}
  .nav-channels{
    display:none;height:auto;position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:10px;padding:18px 20px 22px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
  }
  .site-header.nav-open .nav-channels{display:flex;}
  .site-header.nav-open .nav-channels .pill{text-align:center;padding:12px 18px;}
  .nav-channels .pill{scroll-snap-align:none;}
  .section-title{font-size:22px;}
  .hero-h1{font-size:28px;}
  .page-hero-inner{min-height:200px;padding:22px 20px;border-width:6px;}
  .hero-lead{font-size:15px;}
  .faq-side h2{font-size:22px;}
  .cta-bar{padding:24px 20px;}
  .cta-bar h2{font-size:20px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .card-grid{grid-template-columns:1fr;}
  .card-feature{grid-column:span 1;}
  .metric-strip{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .scene-row{grid-template-columns:1fr;}
  .scene-row img{width:100%;height:170px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px;}
  .btn{width:100%;}
  .cta-bar .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}