/* roulang page: index */
:root{
  --bg:#F5F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE3;
  --line:#DCD9CF;
  --ink-900:#0A1F1A;
  --ink-700:#2C4A42;
  --ink-500:#5E7268;
  --brand:#FF5A2B;
  --brand-ink:#C93B12;
  --brand-soft:#FFE7DE;
  --accent:#B8F24A;
  --ok:#1F8A5B;
  --warn:#C7791A;
  --danger:#D93025;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06), 0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink-900);font-family:var(--font);font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
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,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
h3{font-size:21px;line-height:1.4;font-weight:700}
h4{font-size:17px;font-weight:700}
p{max-width:68ch}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding-top:0}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-md);font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn-block{width:100%}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.btn.is-loading{pointer-events:none;opacity:.8}
.spinner{display:none;width:16px;height:16px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
.btn.is-loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:700;white-space:nowrap}
.link-more svg{transition:transform .18s ease}
.link-more:hover svg{transform:translateX(3px)}
.link-more:hover{color:var(--brand-ink)}
.band-dark .link-more{color:var(--accent)}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.04em;white-space:nowrap}
.band-dark .badge{background:rgba(184,242,74,.16);color:var(--accent)}

/* ============ 头部导航 ============ */
.site-head{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease}
.site-head.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(10,31,26,.07)}
.head-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900)}
.brand-mark{display:block;width:28px;height:28px;flex:none}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:12px}
.main-nav a{position:relative;display:block;padding:8px 12px;border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--ink-700);transition:color .16s ease,background-color .16s ease}
.main-nav a:hover{color:var(--brand);background:var(--surface-2)}
.main-nav a.active{color:var(--brand);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-18px;height:3px;border-radius:2px;background:var(--brand)}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.text-link{font-size:14px;font-weight:600;color:var(--ink-700);padding-bottom:2px;border-bottom:1px solid var(--line);transition:color .16s ease,border-color .16s ease}
.text-link:hover{color:var(--brand);border-color:var(--brand)}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;margin-left:auto}
.burger span{display:block;width:20px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink-900);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:120;background:#fff;padding:24px 18px 32px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;visibility:hidden;transform:translateY(-100%);transition:transform .22s ease,visibility .22s ease}
.drawer.open{visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;font-size:18px;line-height:1;cursor:pointer;color:var(--ink-700)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink-700);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-cta{margin-top:24px}

/* 移动底部 Tab */
.tabbar{display:none}
body{padding-bottom:0}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:var(--bg)}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(10,31,26,.07) 1px,transparent 1px);background-size:18px 18px;opacity:.85;pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;min-height:560px}
.hero-text .badge{margin-bottom:20px}
.hero h1{font-size:clamp(28px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;max-width:20ch}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-700);max-width:44ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;margin-top:36px;background:var(--ink-900);border-radius:var(--r-md);padding:16px 4px}
.hero-stats>div{flex:1;min-width:0;padding:0 16px;border-left:1px solid rgba(255,255,255,.12)}
.hero-stats>div:first-child{border-left:0}
.hero-stats b{display:block;font-family:var(--mono);font-size:22px;font-weight:700;color:var(--accent);line-height:1.2}
.hero-stats span{display:block;margin-top:4px;font-size:12px;color:rgba(255,255,255,.72);line-height:1.5}
.hero-visual{position:relative;isolation:isolate}
.hero-slab{position:absolute;z-index:0;top:-20px;right:-20px;width:58%;height:62%;background:var(--brand);opacity:.14;border-radius:var(--r-lg);clip-path:polygon(16% 0,100% 0,100% 100%,0 100%)}
.hero-img{position:relative;z-index:1;width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.hero-card{position:absolute;z-index:2;left:-18px;bottom:26px;width:236px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--sh-1)}
.ticks{display:flex;gap:4px;margin-bottom:10px}
.ticks i{display:block;width:3px;background:var(--brand);border-radius:2px;opacity:.85}
.ticks i:nth-child(1){height:8px}
.ticks i:nth-child(2){height:14px}
.ticks i:nth-child(3){height:10px}
.ticks i:nth-child(4){height:18px}
.ticks i:nth-child(5){height:12px}
.hc-title{font-size:13px;font-weight:700;color:var(--ink-900);letter-spacing:.02em}
.hc-list{margin-top:8px;display:flex;flex-direction:column;gap:6px}
.hc-list li{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:var(--ink-500)}
.hc-list b{font-family:var(--mono);color:var(--ok);font-weight:700}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand);margin-bottom:10px}
.sec-kicker::before{content:"";width:12px;height:3px;border-radius:2px;background:var(--brand)}
.band-dark .sec-kicker{color:var(--accent)}
.band-dark .sec-kicker::before{background:var(--accent)}
.sec-sub{margin-top:12px;font-size:15px;color:var(--ink-500);max-width:60ch}
.sec-head.center{flex-direction:column;align-items:center;text-align:center;gap:0}

/* ============ 服务板块 ============ */
.svc-top{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.svc-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card:hover h3{color:var(--brand)}
.svc-wide{display:flex;gap:20px;padding:28px}
.svc-wide h3{transition:color .18s ease}
.svc-wide .svc-body{min-width:0}
.svc-wide p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-500)}
.svc-wide .link-more{margin-top:16px}
.svc-tall{padding:26px}
.svc-tall h3{transition:color .18s ease}
.svc-tall p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-500)}
.svc-tall .link-more{margin-top:16px}
.svc-ico{flex:none;width:64px;height:64px;border-radius:16px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;transition:background-color .18s ease,color .18s ease}
.svc-tall .svc-ico{width:52px;height:52px;border-radius:14px;background:var(--surface-2);color:var(--ink-900);margin-bottom:18px}
.card:hover .svc-ico{background:var(--brand);color:#fff}

/* ============ 数据板块 ============ */
.band-dark{background:var(--ink-900);color:#fff}
.band-dark h2{color:#fff}
.band-dark .sec-sub{color:rgba(255,255,255,.62)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);overflow:hidden;background:rgba(255,255,255,.02)}
.stat{padding:30px 24px;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--mono);font-size:clamp(36px,4vw,44px);font-weight:700;line-height:1.1;color:var(--accent)}
.stat b span{margin-left:4px;font-size:16px;font-weight:600;color:rgba(184,242,74,.75)}
.stat p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.7}
.track-line{margin-top:32px;height:1px;background-image:linear-gradient(90deg,rgba(255,255,255,.28) 50%,transparent 0);background-size:12px 1px;background-repeat:repeat-x;opacity:.5}

/* ============ 案例板块 ============ */
.case-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{display:flex;flex-direction:column;overflow:hidden}
.case-cover{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.case-card .case-body{padding:18px 20px 22px}
.case-card h3{font-size:18px;line-height:1.45;margin-top:12px;transition:color .18s ease}
.case-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-500)}
.case-card .link-more{margin-top:14px}
.case-inner{padding:16px}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh-1);min-height:132px;transition:background-color .18s ease,box-shadow .18s ease,transform .18s ease}
.news-card:hover{background:var(--surface-2);transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{flex:none;width:160px;height:100px;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column;gap:6px}
.news-body h3{font-size:17px;line-height:1.45;transition:color .18s ease;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--brand)}
.news-body p{font-size:13px;line-height:1.7;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:none}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-500)}
.news-meta time{font-family:var(--mono)}
.empty-state{min-height:220px;border:1px dashed var(--line);border-radius:var(--r-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px;color:var(--ink-500)}
.empty-state svg{color:var(--ink-500)}
.empty-state p{font-size:14px;max-width:none}
.empty-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:4px}

/* ============ 方案时间轴 ============ */
.plan-grid{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.plan-aside p{margin-top:16px;font-size:15px;color:var(--ink-500);line-height:1.8}
.plan-aside .btn{margin-top:26px}
.plan-steps li{position:relative;padding:0 0 34px 72px}
.plan-steps li:last-child{padding-bottom:0}
.plan-steps li::before{content:"";position:absolute;left:23px;top:56px;bottom:2px;border-left:1px dashed var(--line)}
.plan-steps li:last-child::before{display:none}
.plan-num{position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;background:var(--surface);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:15px;font-weight:700;color:var(--brand)}
.plan-steps h3{font-size:19px}
.plan-steps p{margin-top:8px;font-size:14.5px;color:var(--ink-500);line-height:1.8}
.check-list{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:14px}
.check-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-700)}
.check-list li::before{content:"";flex:none;width:16px;height:16px;border-radius:5px;background-color:var(--brand-soft);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.4l3 3 6-6.6' fill='none' stroke='%23FF5A2B' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-size:12px;background-position:center;background-repeat:no-repeat}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:16px 0;font-size:17px;font-weight:700;color:var(--ink-900);transition:color .16s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-sign{position:relative;flex:none;width:18px;height:18px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-item[open] summary::before{content:"";position:absolute;left:-16px;top:14px;bottom:14px;width:3px;border-radius:2px;background:var(--brand)}
.faq-body{padding:0 0 18px;font-size:15.5px;color:var(--ink-700);line-height:1.85;max-width:66ch}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.contact-grid .sec-sub{margin-top:16px}
.contact-list{margin-top:30px;display:flex;flex-direction:column;gap:18px}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--ink-700)}
.contact-list svg{flex:none;margin-top:3px;color:var(--brand)}
.contact-list b{display:block;font-family:var(--mono);font-weight:700;color:var(--ink-900);margin-top:2px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;margin-bottom:8px;font-size:13px;font-weight:600;color:var(--ink-700);letter-spacing:.02em}
.field input,.field select,.field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:15px;color:var(--ink-900);outline:none;transition:border-color .16s ease,box-shadow .16s ease}
.field textarea{height:auto;min-height:130px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,90,43,.28)}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--danger)}
.err-msg{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.has-error .err-msg{display:block}
.checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-500);line-height:1.65}
.checkbox-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:none}
.form-note{margin-top:14px;font-size:12.5px;color:var(--ink-500)}
.form-ok{display:none;margin-bottom:16px;padding:12px 14px;border-radius:10px;background:rgba(31,138,91,.1);border:1px solid rgba(31,138,91,.35);color:var(--ok);font-size:13.5px}
.form-ok.show{display:block}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink-900);color:#fff;padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-grid h3{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px}
.foot-brand .brand{color:#fff}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:34ch}
.foot-col a,.foot-col p{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.78);transition:color .16s ease}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;padding-bottom:24px;font-size:13px;color:rgba(255,255,255,.6)}
.foot-bar-inner p{max-width:none}

/* ============ 淡入动画 ============ */
.reveal{opacity:1}
html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .main-nav,.head-actions{display:none}
  .burger{display:flex}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0}
  .hero-visual{max-width:600px}
  .hero h1{max-width:26ch}
  .svc-top{grid-template-columns:1fr}
  .svc-bottom{grid-template-columns:repeat(2,1fr)}
  .case-rail{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  h2{font-size:clamp(22px,6vw,28px)}
  body{padding-bottom:76px}
  .head-inner{height:56px}
  .brand{font-size:17px}
  .brand-mark{width:24px;height:24px}
  .hero{padding:36px 0 52px}
  .hero h1{font-size:clamp(26px,8vw,34px);max-width:none}
  .hero-sub{font-size:15.5px}
  .hero-img{aspect-ratio:16/9;height:240px}
  .hero-card{left:12px;right:12px;bottom:12px;width:auto}
  .hero-stats{flex-wrap:wrap;padding:12px 0}
  .hero-stats>div{flex:1 1 50%;padding:8px 14px;border-left:0;border-top:1px solid rgba(255,255,255,.12)}
  .hero-stats>div:nth-child(1),.hero-stats>div:nth-child(2){border-top:0}
  .hero-stats>div:nth-child(2n){border-left:1px solid rgba(255,255,255,.12)}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .svc-wide{flex-direction:column;padding:22px}
  .svc-bottom{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .stat{padding:22px 18px}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12)}
  .case-rail{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;margin:0 -18px;padding:0 18px 10px}
  .case-card{flex:0 0 78%;scroll-snap-align:start}
  .news-grid{grid-template-columns:1fr}
  .news-thumb{width:104px;height:72px}
  .news-body h3{font-size:15.5px}
  .plan-steps li{padding-left:60px}
  .plan-num{width:42px;height:42px;border-radius:12px}
  .plan-steps li::before{left:20px;top:50px}
  .faq-item summary{min-height:56px;font-size:15.5px}
  .faq-item[open] summary::before{left:-1px;width:3px}
  .faq-body{font-size:15px}
  .form-card{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-bar-inner{flex-direction:column;gap:8px}
  .tabbar{position:fixed;left:0;right:0;bottom:0;z-index:90;display:flex;height:60px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
  .tabbar a{position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--ink-500);transition:color .16s ease}
  .tabbar a svg{width:22px;height:22px}
  .tabbar a.active{color:var(--brand);font-weight:700}
  .tabbar a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;border-radius:2px;background:var(--brand)}
}
@media (min-width:768px){
  .drawer{display:none}
}

/* roulang page: article */
:root{
  --bg:#F5F4EF; --surface:#FFFFFF; --surface-2:#EDEBE3; --line:#DCD9CF;
  --ink-900:#0A1F1A; --ink-700:#2C4A42; --ink-500:#5E7268;
  --brand:#FF5A2B; --brand-ink:#C93B12; --brand-soft:#FFE7DE;
  --accent:#B8F24A; --ok:#1F8A5B; --warn:#C7791A; --danger:#D93025;
  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06), 0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink-700);font-family:var(--font);font-size:16px;line-height:1.85;-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;line-height:1.25}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-head{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .18s ease}
.site-head.is-scrolled{box-shadow:var(--sh-1)}
.head-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.brand-mark{display:inline-flex;line-height:0}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;font-weight:600;color:var(--ink-700);padding:6px 0;transition:color .18s ease}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--ink-900);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:2px;background:var(--brand)}
.head-actions{display:flex;align-items:center;gap:16px}
.head-link{font-size:14px;font-weight:700;color:var(--ink-700);transition:color .18s ease}
.head-link:hover{color:var(--brand)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;background:var(--surface);transform:translateY(-100%);visibility:hidden;transition:transform .22s ease,visibility .22s ease;padding:18px}
.drawer.open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:18px}
.drawer-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer-nav a:hover{color:var(--brand)}
.drawer-nav a span.tag{font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:2px 10px}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-foot .btn{width:100%}

/* ---------- 按钮 / 徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:1px solid transparent;border-radius:14px;font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.btn-text svg{transition:transform .16s ease}
.btn-text:hover svg{transform:translateX(3px)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.04em}

/* ---------- 文章头 ---------- */
.article-head{padding:36px 0 28px;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-500);margin-bottom:18px}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb-cur{max-width:16em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{font-size:clamp(24px,3.2vw,40px);line-height:1.3;letter-spacing:-.01em;margin:14px 0 14px;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.article-meta .dot{color:var(--line)}

/* ---------- 正文布局 ---------- */
.article-section{padding:40px 0 72px}
.article-layout{display:block}
.article-layout.has-toc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start}
.toc{display:none;position:sticky;top:96px}
.article-layout.has-toc .toc{display:block}
.toc-title{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-500);margin-bottom:12px;padding-left:13px}
.toc nav{display:flex;flex-direction:column;border-left:1px solid var(--line)}
.toc a{font-size:13px;line-height:1.55;color:var(--ink-500);padding:7px 12px;border-left:2px solid transparent;margin-left:-1px;transition:color .16s ease,border-color .16s ease}
.toc a:hover{color:var(--brand)}
.toc a.on{color:var(--ink-900);font-weight:700;border-left-color:var(--brand)}
.article-shell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:48px 44px}
.toc-mobile{display:none;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2);margin:0 0 28px}
.toc-mobile summary{cursor:pointer;list-style:none;padding:14px 18px;font-size:14px;font-weight:700;color:var(--ink-900);display:flex;align-items:center;justify-content:space-between}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";font-size:18px;font-weight:700;color:var(--brand)}
.toc-mobile[open] summary::after{content:"–"}
.toc-mobile nav{display:flex;flex-direction:column;padding:0 18px 14px}
.toc-mobile a{font-size:13px;color:var(--ink-700);padding:6px 0;border-top:1px dashed var(--line)}
.toc-mobile a:hover{color:var(--brand)}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink-700)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;color:var(--ink-900);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.article-body h3{font-size:22px;line-height:1.35;color:var(--ink-900);margin:32px 0 12px}
.article-body h4{font-size:17px;color:var(--ink-900);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body li{margin:0 0 .5em;line-height:1.8}
.article-body a{color:var(--brand);border-bottom:1px solid transparent;transition:border-color .16s ease}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body blockquote{margin:24px 0;padding:20px;background:var(--surface-2);border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%}
.article-body figure{margin:24px 0}
.article-body figure img{margin:0 auto}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm)}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--surface-2);color:var(--ink-900);font-weight:700;white-space:nowrap}
.article-body code{font-family:var(--mono);font-size:14px;background:var(--surface-2);padding:2px 6px;border-radius:6px}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty-state{min-height:220px;border:1px dashed var(--line);border-radius:var(--r-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:40px 20px;color:var(--ink-500)}
.empty-state svg{color:var(--ink-500)}
.empty-state p{font-size:14px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 72px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.related-head h2{font-size:clamp(22px,2.6vw,30px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-card:hover h3{color:var(--brand)}
.post-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--surface-2)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:17px;line-height:1.45;transition:color .18s ease}
.post-card .desc{font-size:14px;line-height:1.75;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-500);margin-top:auto}
.post-card .link-layer{position:absolute;inset:0}

/* ---------- 迷你 CTA ---------- */
.mini-cta{background:var(--brand-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mini-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:28px;padding-bottom:28px}
.mini-cta-inner p{font-size:16px;font-weight:700;color:var(--ink-900);max-width:56ch}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-900);color:#fff}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px}
.foot-brand .brand{color:#fff}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:36ch}
.foot-col h3{font-size:13px;font-weight:600;letter-spacing:.06em;color:rgba(255,255,255,.55);margin-bottom:14px}
.foot-col a,.foot-col p{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:10px;transition:color .16s ease}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:20px;padding-bottom:20px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 移动底部 Tab ---------- */
.tabbar{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .article-layout.has-toc{display:block}
  .toc{display:none}
  .toc-mobile:not([hidden]){display:block}
  .article-shell{padding:32px 26px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding-top:48px}
}
@media (max-width:767px){
  body{padding-bottom:76px}
  .wrap{padding:0 18px}
  .head-inner{height:56px;gap:16px}
  .main-nav{display:none}
  .head-actions .btn,.head-actions .head-link{display:none}
  .nav-toggle{display:inline-flex}
  .article-head{padding:24px 0 20px}
  .article-section{padding:26px 0 56px}
  .article-shell{padding:22px 18px;border-radius:var(--r-md)}
  .article-body{font-size:15px;line-height:1.9}
  .article-body h2{margin-top:32px}
  .mini-cta-inner{flex-direction:column;align-items:flex-start;padding-top:24px;padding-bottom:24px}
  .mini-cta-inner .btn{width:100%}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding-top:40px;padding-bottom:32px}
  .foot-bar-inner{flex-direction:column;align-items:flex-start;gap:6px;font-size:12px}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
  .tabbar a{position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--ink-500)}
  .tabbar a.on{color:var(--brand)}
  .tabbar a.on svg{fill:currentColor}
  .tabbar a.on::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;background:var(--brand)}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .article-shell{padding:18px 15px}
  .related-head{flex-direction:column;align-items:flex-start}
  .drawer-nav a{font-size:16px;padding:14px 2px}
}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#F5F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE3;
  --line:#DCD9CF;
  --ink-900:#0A1F1A;
  --ink-700:#2C4A42;
  --ink-500:#5E7268;
  --brand:#FF5A2B;
  --brand-ink:#C93B12;
  --brand-soft:#FFE7DE;
  --accent:#B8F24A;
  --ok:#1F8A5B;
  --warn:#C7791A;
  --danger:#D93025;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06),0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --head-h:72px;
  --font-sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:ui-monospace,"SF Mono","JetBrains Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(28px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
h3{font-size:21px;line-height:1.4;font-weight:700}
h4{font-size:17px;line-height:1.5;font-weight:700}
p{max-width:68ch}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head .sec-kicker{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.sec-head .tick{width:12px;height:3px;background:var(--brand);border-radius:2px}
.sec-head .rail{width:4px;height:16px;background:var(--brand);border-radius:2px}
.sec-head h2 + p{margin-top:14px;color:var(--ink-700);font-size:16px}
.sec-sub{color:var(--ink-500);font-size:15px;max-width:60ch}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-head.is-scrolled{box-shadow:0 6px 20px rgba(10,31,26,.08)}
.head-inner{display:flex;align-items:center;gap:32px;height:var(--head-h)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em;flex:0 0 auto}
.brand-mark{display:inline-flex;width:28px;height:28px}
.brand-mark svg{width:28px;height:28px;display:block}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{
  position:relative;
  font-size:15px;color:var(--ink-700);
  padding:6px 0;
  transition:color .18s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--ink-900);font-weight:700}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-24px;height:3px;background:var(--brand);border-radius:2px;
}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:18px}
.head-link{font-size:15px;color:var(--ink-700);transition:color .18s ease}
.head-link:hover{color:var(--brand)}
.burger{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.burger:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
.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}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  transform:translateY(-100%);transition:transform .22s ease;
  display:flex;flex-direction:column;padding:24px 20px calc(24px + env(safe-area-inset-bottom));
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:20px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:17px;font-weight:600;color:var(--ink-900);
}
.drawer-nav a.active{color:var(--brand)}
.drawer-nav a span.arw{color:var(--ink-500);font-size:15px}
.drawer-cta{margin-top:20px}
.drawer-cta .btn{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn-soft{background:var(--surface);color:var(--ink-900);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-soft:hover{border-color:var(--brand);color:var(--brand)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px;
  transition:transform .18s ease,color .18s ease;
}
.link-more svg{width:16px;height:16px;transition:transform .18s ease}
.link-more:hover{color:var(--brand-ink)}
.link-more:hover svg{transform:translateX(2px)}
.link-more:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-dark{background:rgba(184,242,74,.16);color:var(--accent)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-700);font-size:12px;font-weight:600;letter-spacing:.04em;
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;top:-60px;left:-80px;width:340px;height:260px;
  background:var(--surface-2);
  clip-path:polygon(0 0,100% 6%,100% 100%,0 92%);
  opacity:.85;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(10,31,26,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:56px 32px 64px;min-height:420px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-500);margin-bottom:20px}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand)}
.hero h1{margin:14px 0 18px;max-width:20ch}
.hero-sub{color:var(--ink-700);font-size:17px;max-width:52ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-700)}
.hero-points svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto}
.hero-media{position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.hero-media img{width:100%;height:100%;min-height:340px;max-height:420px;object-fit:cover}
.hero-tag{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.94);border-radius:var(--r-sm);
  padding:10px 14px;box-shadow:var(--sh-1);
}
.hero-tag strong{display:block;font-size:20px;line-height:1.2;color:var(--brand)}
.hero-tag span{font-size:12px;color:var(--ink-500);letter-spacing:.04em}
.hero-tag::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--brand);border-radius:2px}

/* ---------- feature cards (2 big + 1 small) ---------- */
.feat-grid{display:grid;grid-template-columns:1.15fr 1.15fr .85fr;gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card:hover h3{color:var(--brand)}
.card h3{transition:color .18s ease}
.card p{color:var(--ink-700);font-size:15px;margin-top:10px}
.card .link-more{margin-top:18px}
.feat-wide{display:flex;gap:20px;align-items:flex-start}
.feat-icon{
  flex:0 0 auto;width:64px;height:64px;border-radius:var(--r-md);
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.feat-icon svg{width:30px;height:30px}
.feat-col{display:flex;flex-direction:column;height:100%}
.feat-col .feat-icon{background:var(--ink-900);color:var(--accent);width:56px;height:56px;margin-bottom:18px}
.feat-col .link-more{margin-top:auto;padding-top:18px}
.accent-bar{border-left:3px solid var(--brand)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.split-media img{width:100%;height:100%;min-height:300px;max-height:400px;object-fit:cover}
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list svg{width:20px;height:20px;flex:0 0 auto;color:var(--ok);margin-top:3px}
.check-list strong{color:var(--ink-900);font-weight:700}

/* ---------- stat band ---------- */
.stat-band{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 32px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.stat-item{padding:0 8px;border-left:1px solid var(--line);padding-left:24px}
.stat-item:first-child{border-left:0;padding-left:8px}
.stat-item .stat-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.6vw,42px);font-weight:800;line-height:1.1;color:var(--ink-900)}
.stat-item .stat-num em{font-style:normal;font-size:.5em;color:var(--ink-500);margin-left:6px;font-weight:700}
.stat-item .stat-hl{color:var(--brand)}
.stat-item p{margin-top:8px;font-size:14px;color:var(--ink-700);max-width:34ch}

/* ---------- scene list ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease}
.scene:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scene h3{font-size:17px}
.scene p{margin-top:8px;font-size:14px;color:var(--ink-700)}
.scene .tag{margin-bottom:14px}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);background:transparent}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:14px 0 14px 0;font-size:17px;font-weight:700;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:var(--brand);font-weight:400;
  transition:transform .2s ease;width:22px;text-align:center;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--brand);padding-left:14px}
.faq-item .faq-body{padding:2px 14px 20px 14px;color:var(--ink-700);font-size:15px}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--r-sm)}

/* ---------- category loop links ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand)}
.cat-card:hover h3{color:var(--brand)}
.cat-card h3{font-size:17px;transition:color .18s ease}
.cat-card p{font-size:14px;color:var(--ink-700)}
.cat-card .cat-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-500);letter-spacing:.04em}
.cat-card.is-current{border-color:var(--brand);background:var(--brand-soft)}
.cat-card.is-current .cat-foot{color:var(--brand-ink);font-weight:700}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-40px;width:300px;height:220px;background:#fff;
  clip-path:polygon(0 10%,100% 0,100% 100%,0 88%);opacity:.55;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:44px 32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);max-width:26ch}
.cta-inner p{margin-top:8px;font-size:15px;color:var(--ink-700)}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-900);color:#fff;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px}
.foot-brand .brand{color:#fff;margin-bottom:16px}
.foot-brand p{color:rgba(255,255,255,.72);font-size:14px;max-width:38ch}
.foot-col h3{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.6);font-weight:600;margin-bottom:16px}
.foot-col a,.foot-col p{display:block;color:rgba(255,255,255,.82);font-size:14px;margin-bottom:10px;transition:color .18s ease}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px dashed rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:20px;padding-bottom:20px;flex-wrap:wrap}
.foot-bar p{font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- mobile tab bar ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.tabbar ul{display:flex;height:60px}
.tabbar li{flex:1}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:100%;font-size:11px;color:var(--ink-500);
}
.tabbar svg{width:22px;height:22px}
.tabbar a.active{color:var(--brand);font-weight:700}
.tabbar a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--brand);border-radius:2px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .hero-grid{grid-template-columns:1fr 1fr;gap:36px;padding:44px 24px 56px}
  .sec{padding:72px 0}
  .sec-tight{padding:56px 0}
  .feat-grid{grid-template-columns:1fr 1fr}
  .feat-col{grid-column:1 / -1}
  .split{gap:36px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15px;padding-bottom:76px}
  .wrap{padding:0 18px}
  .main-nav,.head-actions{display:none}
  .burger{display:flex}
  .head-inner{height:56px}
  .hero-grid{grid-template-columns:1fr;gap:28px;padding:32px 18px 44px}
  .hero h1{max-width:none}
  .hero-sub{font-size:16px}
  .hero-media img{min-height:0;height:230px;max-height:260px}
  .hero-cta .btn{width:100%}
  .sec{padding:56px 0}
  .sec-tight{padding:44px 0}
  .sec-head{margin-bottom:26px}
  .feat-grid{grid-template-columns:1fr}
  .feat-wide{flex-direction:column}
  .split{grid-template-columns:1fr;gap:26px}
  .split-media img{min-height:0;height:220px}
  .stat-band{grid-template-columns:1fr;padding:24px 20px;gap:18px}
  .stat-item{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:16px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .scene-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .cta-inner{padding:32px 18px;flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .faq-item summary{min-height:56px;font-size:16px}
  .foot-grid{grid-template-columns:1fr;padding-top:44px;padding-bottom:32px;gap:26px}
  .foot-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .tabbar{display:block}
}
@media (max-width:520px){
  .brand{font-size:16px}
  .hero-media img{height:210px}
  .stat-item .stat-num{font-size:30px}
  .card{padding:20px}
}
@media (min-width:768px){
  .drawer{display:none}
}

/* roulang page: category2 */
:root{
  --bg:#F5F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE3;
  --line:#DCD9CF;
  --ink-900:#0A1F1A;
  --ink-700:#2C4A42;
  --ink-500:#5E7268;
  --brand:#FF5A2B;
  --brand-ink:#C93B12;
  --brand-soft:#FFE7DE;
  --accent:#B8F24A;
  --ok:#1F8A5B;
  --warn:#C7791A;
  --danger:#D93025;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06),0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --sec:96px;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(28px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.25;letter-spacing:-.01em}
h3{font-size:21px;font-weight:700;line-height:1.4}
h4{font-size:17px;font-weight:700;line-height:1.5}
p{max-width:68ch}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.sec{padding:var(--sec) 0}
.sec-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.sec-head p{margin-top:12px;color:var(--ink-700);font-size:15px;max-width:56ch}
.sec-title{position:relative;padding-left:18px}
.sec-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;background:var(--brand);border-radius:2px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-700);background:var(--surface-2);padding:6px 13px;border-radius:var(--r-pill)}
.kicker::before{content:"";width:12px;height:3px;background:var(--brand);border-radius:2px}
.kicker.on-dark{background:rgba(184,242,74,.16);color:var(--accent)}
.kicker.on-dark::before{background:var(--accent)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-md);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px;transition:transform .18s ease}
.link-arrow:hover{transform:translateX(2px)}
.link-arrow svg{width:16px;height:16px}

/* 顶栏 */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease}
.site-head.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(10,31,26,.06)}
.head-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{display:inline-flex;width:28px;height:28px}
.brand-mark svg{width:28px;height:28px;display:block}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;color:var(--ink-700);padding:24px 0;transition:color .18s ease}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--ink-900);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;background:var(--brand);border-radius:2px}
.head-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer}
.burger:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:#fff;transform:translateY(-100%);visibility:hidden;transition:transform .22s ease,visibility .22s ease;overflow-y:auto}
.drawer.open{transform:translateY(0);visibility:visible}
.drawer-inner{padding:18px 18px 32px;display:flex;flex-direction:column;min-height:100%}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff}
.drawer-nav{display:flex;flex-direction:column;margin:12px 0 24px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink-700)}
.drawer-nav a.active{color:var(--brand)}
.drawer-nav a span:last-child{color:var(--ink-500)}
.drawer-cta{margin-top:auto}

/* 面包屑 */
.crumb{font-size:12px;color:var(--ink-500);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.6}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:52px 0 72px;background:var(--bg)}
.hero::before{content:"";position:absolute;top:-60px;right:-120px;width:520px;height:340px;background:var(--brand-soft);clip-path:polygon(0 14%,100% 0,100% 100%,0 86%);opacity:.85;z-index:0}
.hero::after{content:"";position:absolute;left:-40px;bottom:-90px;width:280px;height:280px;background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:14px 14px;opacity:.7;z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy>*+*{margin-top:20px}
.hero-lead{font-size:17px;color:var(--ink-700);max-width:48ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;padding-top:12px}
.hero-stat{display:flex;flex-direction:column;gap:2px}
.hero-stat .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;line-height:1.2;display:flex;align-items:center;gap:8px}
.hero-stat .num::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);display:inline-block}
.hero-stat .lbl{font-size:12px;color:var(--ink-500);letter-spacing:.04em}
.hero-media{position:relative}
.hero-media img{width:100%;height:clamp(240px,33vw,420px);object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.hero-chip{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-1);min-width:190px}
.hero-chip .chip-label{font-size:12px;color:var(--ink-500);letter-spacing:.04em;display:block}
.hero-chip strong{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;line-height:1.3;display:block}
.hero-chip .chip-trend{font-size:12px;color:var(--ink-700)}
.hero-chip .chip-trend b{color:var(--ok);font-family:var(--mono)}

/* 图文交替 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:44px 0}
.split + .split{border-top:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-lg)}
.split-text>*+*{margin-top:18px}
.split-text .desc{color:var(--ink-700);font-size:15.5px;max-width:52ch}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list svg{flex:0 0 auto;width:20px;height:20px;margin-top:4px;color:var(--brand)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.04em;background:var(--brand-soft);color:var(--brand-ink)}
.tag-accent{background:rgba(184,242,74,.18);color:#2E5A0E}

/* 深色数据条 */
.band{background:var(--ink-900);color:#fff;padding:64px 0;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;left:0;right:0;top:26px;border-top:1px dashed rgba(255,255,255,.12)}
.band-head{position:relative;z-index:1;margin-bottom:36px}
.band-head h2{color:#fff}
.band-head p{color:rgba(255,255,255,.72);font-size:15px;margin-top:10px}
.band-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr)}
.band-item{padding:0 34px;border-left:1px solid rgba(255,255,255,.12)}
.band-item:first-child{border-left:0;padding-left:0}
.band-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:44px;font-weight:800;line-height:1.1;color:var(--accent)}
.band-num small{font-size:16px;font-weight:700;color:rgba(255,255,255,.78);margin-left:6px}
.band-item h3{font-size:17px;font-weight:700;color:#fff;margin-top:12px}
.band-item p{font-size:14px;color:rgba(255,255,255,.7);margin-top:6px;max-width:34ch}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);position:relative;transition:box-shadow .18s ease}
.faq details[open]{box-shadow:inset 3px 0 0 var(--brand)}
.faq summary{list-style:none;cursor:pointer;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;font-size:17px;font-weight:700;transition:color .18s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:var(--r-sm)}
.faq .ico{flex:0 0 auto;width:22px;height:22px;color:var(--ink-500);transition:transform .2s ease,color .2s ease}
.faq details[open] .ico{transform:rotate(45deg);color:var(--brand)}
.faq .ans{padding:0 0 22px;color:var(--ink-700);font-size:15px;line-height:1.85;max-width:66ch}

/* 分类互链 */
.links-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.link-card{display:flex;flex-direction:column;gap:10px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand)}
.link-card:hover h3{color:var(--brand)}
.link-card h3{font-size:17px;transition:color .18s ease}
.link-card p{font-size:14px;color:var(--ink-700)}
.link-card .state{font-size:12px;color:var(--ink-500);letter-spacing:.04em;margin-top:auto}
.link-card.is-current{border-color:var(--brand);background:var(--brand-soft)}
.link-card.is-current .state{color:var(--brand-ink);font-weight:600}

/* CTA */
.cta{position:relative;overflow:hidden;background:var(--brand-soft);border-radius:var(--r-lg);padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta::before{content:"";position:absolute;right:-80px;top:-40px;width:320px;height:220px;background:rgba(255,90,43,.14);clip-path:polygon(0 18%,100% 0,100% 100%,0 82%)}
.cta-body{position:relative;z-index:1;max-width:56ch}
.cta-body h2{font-size:clamp(22px,2.6vw,30px)}
.cta-body p{margin-top:10px;color:var(--ink-700);font-size:15px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-foot{background:var(--ink-900);color:#fff;padding-top:64px;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .brand{color:#fff;font-size:19px;margin-bottom:14px}
.foot-brand p{font-size:14px;color:rgba(255,255,255,.68);max-width:34ch;line-height:1.8}
.foot-col{display:flex;flex-direction:column;gap:10px}
.foot-col h3{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(255,255,255,.55);text-transform:uppercase;margin-bottom:6px}
.foot-col a,.foot-col p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.7;max-width:none}
.foot-col a{width:fit-content;transition:color .18s ease}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 32px;flex-wrap:wrap}
.foot-bar-inner p{font-size:13px;color:rgba(255,255,255,.6);max-width:none}

/* 底部 Tab */
.tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
.tabbar a{position:relative;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--ink-500)}
.tabbar a svg{width:22px;height:22px}
.tabbar a.active{color:var(--brand);font-weight:700}
.tabbar a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;background:var(--brand);border-radius:2px}

/* 动效 */
.js .fade{opacity:0;transform:translateY(12px);transition:opacity .42s ease,transform .42s ease}
.js .fade.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .fade{opacity:1;transform:none}
}

/* 断点 1280 */
@media (max-width:1279px){
  :root{--wrap:1120px}
  .main-nav{gap:20px}
  .main-nav a{font-size:14px}
}
/* 断点 1024 */
@media (max-width:1023px){
  :root{--sec:72px}
  .wrap{padding:0 24px}
  .foot-bar-inner{padding:20px 24px}
  .head-actions{display:none}
  .hero-grid{gap:36px}
  .split{gap:40px;padding:36px 0}
  .links-grid{grid-template-columns:repeat(2,1fr)}
  .band-item{padding:0 24px}
  .band-num{font-size:38px}
  .cta{padding:44px 36px}
}
/* 断点 768 */
@media (max-width:767px){
  :root{--sec:56px}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));font-size:15px}
  .wrap{padding:0 18px}
  .main-nav{display:none}
  .burger{display:inline-flex}
  .head-inner{height:56px;gap:12px}
  .brand{font-size:17px;margin-right:auto}
  .hero{padding:28px 0 48px}
  .hero::before{width:300px;height:220px;right:-90px;top:-40px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{order:2}
  .hero-media img{height:240px}
  .hero-lead{font-size:15.5px}
  .hero-stats{gap:24px}
  .hero-actions .btn{flex:1 1 auto}
  .split{grid-template-columns:1fr;gap:22px;padding:30px 0}
  .split-media{order:-1}
  .split-media img{aspect-ratio:16/10}
  .sec-head{margin-bottom:28px}
  .band{padding:48px 0}
  .band-grid{grid-template-columns:1fr;gap:26px}
  .band-item{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:22px}
  .band-item:first-child{border-top:0;padding-top:0}
  .band-num{font-size:34px}
  .faq summary{min-height:56px;font-size:16px;padding:16px 0}
  .links-grid{grid-template-columns:1fr}
  .cta{padding:32px 22px;flex-direction:column;align-items:flex-start;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .tabbar{display:grid;grid-template-columns:repeat(4,1fr)}
  .foot-bar-inner{padding:18px}
}
/* 断点 520 */
@media (max-width:520px){
  h1{letter-spacing:-.01em}
  .hero-chip{left:12px;right:12px;bottom:12px;min-width:0;padding:12px 14px}
  .hero-chip strong{font-size:22px}
  .hero-stat .num{font-size:19px}
  .btn{height:46px;padding:0 20px}
  .btn-sm{height:40px}
  .sec-tight{padding:44px 0}
}

/* roulang page: category3 */
:root{
  --bg:#F5F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE3;
  --line:#DCD9CF;
  --ink-900:#0A1F1A;
  --ink-700:#2C4A42;
  --ink-500:#5E7268;
  --brand:#FF5A2B;
  --brand-ink:#C93B12;
  --brand-soft:#FFE7DE;
  --accent:#B8F24A;
  --ok:#1F8A5B;
  --warn:#C7791A;
  --danger:#D93025;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06),0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.25;font-weight:800}
h1{font-size:clamp(28px,4.6vw,52px);line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:21px;font-weight:700}
h4{font-size:17px;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
svg{display:block}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-500);margin-bottom:14px}
.sec-head .eyebrow::before{content:"";width:12px;height:3px;background:var(--brand);border-radius:2px}
.sec-head h2{margin-bottom:16px}
.sec-head p{max-width:60ch;color:var(--ink-500);font-size:15px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-ink);box-shadow:var(--sh-1)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;transition:transform .18s ease,color .18s ease}
.link-more svg{transition:transform .18s ease}
.link-more:hover{color:var(--brand-ink)}
.link-more:hover svg{transform:translateX(2px)}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-dark{background:rgba(184,242,74,.16);color:var(--accent)}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:70;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-head.scrolled{box-shadow:0 8px 24px rgba(10,31,26,.08)}
.head-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:.01em}
.brand-mark{display:inline-flex;width:28px;height:28px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;color:var(--ink-700);padding:8px 0;transition:color .18s ease}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--ink-900);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand);border-radius:2px}
.head-actions{display:flex;align-items:center;gap:18px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--ink-900)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateY(-100%);transition:transform .22s ease;
  display:flex;flex-direction:column;padding:16px 18px 24px;overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:12px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--ink-900)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 2px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.drawer-nav a span{font-size:12px;color:var(--ink-500);font-weight:500}
.drawer-nav a.active{color:var(--brand)}
.drawer-cta{margin-top:24px;width:100%}

/* ---------- bottom tab ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--ink-500);position:relative;transition:color .18s ease;
}
.tabbar a svg{width:22px;height:22px}
.tabbar a.active{color:var(--brand);font-weight:700}
.tabbar a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--brand);border-radius:0 0 2px 2px}
.tabbar a:hover{color:var(--brand)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 80px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(10,31,26,.55) 1px,transparent 1px);
  background-size:22px 22px;opacity:.07;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-140px;bottom:-60px;width:520px;height:260px;
  background:var(--brand-soft);
  clip-path:polygon(0 14%,100% 0,100% 86%,0 100%);
  opacity:.75;pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-500);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:var(--line)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;min-height:400px}
.hero-copy .badge{margin-bottom:18px}
.hero-copy h1{margin-bottom:20px}
.hero-copy h1 em{font-style:normal;color:var(--brand)}
.hero-lead{max-width:46ch;font-size:16px;color:var(--ink-700);margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-mini{display:flex;flex-wrap:wrap;gap:28px}
.hero-mini div{display:flex;flex-direction:column;gap:2px}
.hero-mini b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;color:var(--ink-900);font-weight:700}
.hero-mini b i{font-style:normal;font-size:13px;color:var(--ink-500);font-weight:600;margin-left:2px}
.hero-mini span{font-size:12px;color:var(--ink-500)}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.score-card{
  position:absolute;left:-18px;bottom:24px;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:14px 18px;display:flex;flex-direction:column;gap:2px;
}
.score-card::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--brand);border-radius:0 3px 3px 0}
.score-card .score-label{font-size:11px;letter-spacing:.06em;color:var(--ink-500)}
.score-card .score-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--ink-900);line-height:1.2}
.score-card .score-sub{font-size:12px;color:var(--ink-500)}

/* ---------- abilities ---------- */
.ability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ability-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);position:relative;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.ability-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#cdc9bd}
.ability-card .ico{
  width:48px;height:48px;border-radius:12px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:20px;
}
.ability-card h3{margin-bottom:12px}
.ability-card p{font-size:15px;color:var(--ink-500);margin-bottom:18px}
.ability-card ul{display:flex;flex-direction:column;gap:8px}
.ability-card li{display:flex;gap:8px;font-size:14px;color:var(--ink-700)}
.ability-card li svg{flex:0 0 auto;margin-top:5px;color:var(--ok)}

/* ---------- steps ---------- */
.steps{display:flex;flex-direction:column}
.step{
  display:grid;grid-template-columns:110px 1fr;gap:32px;
  padding:32px 0;border-top:1px dashed rgba(10,31,26,.22);
}
.step:last-child{border-bottom:1px dashed rgba(10,31,26,.22)}
.step-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:.02em;
}
.step-num small{display:block;font-family:var(--font);font-size:12px;color:var(--ink-500);font-weight:600;letter-spacing:.04em;margin-top:6px}
.step-body h3{margin-bottom:10px}
.step-body p{font-size:15px;color:var(--ink-500);max-width:66ch;margin-bottom:14px}
.step-tags{display:flex;flex-wrap:wrap;gap:8px}
.step-tags span{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-700);font-size:12px;font-weight:600;
}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1)}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-size:19px}
.compare-col ul{display:flex;flex-direction:column;gap:16px}
.compare-col li{display:flex;gap:12px;font-size:15px;line-height:1.7}
.compare-col li svg{flex:0 0 auto;margin-top:6px}
.compare-col.muted li{color:var(--ink-500)}
.compare-col.muted li svg{color:var(--warn)}
.compare-col.strong{background:var(--ink-900);border-color:var(--ink-900);box-shadow:none}
.compare-col.strong h3{color:#fff}
.compare-col.strong li{color:rgba(255,255,255,.86)}
.compare-col.strong li svg{color:var(--accent)}

/* ---------- metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.metric{padding:32px;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--ink-900);line-height:1.1}
.metric .num i{font-style:normal;font-size:15px;color:var(--ink-500);font-weight:600;margin-left:4px}
.metric .cap{margin-top:10px;font-size:14px;color:var(--ink-500)}
.metric .bar{margin-top:16px;height:4px;border-radius:var(--r-pill);background:var(--surface-2);overflow:hidden}
.metric .bar i{display:block;height:100%;background:var(--brand);border-radius:var(--r-pill)}
.metric:last-child .bar i{background:var(--ok)}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;position:relative;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink-900);min-height:64px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);border-color:var(--brand)}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}
.faq-body{padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--ink-700)}
.faq-body p+p{margin-top:14px}
.faq-body strong{color:var(--ink-900)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-900);color:#fff;
  border-radius:var(--r-lg);padding:56px 56px;
  display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;width:420px;height:260px;
  background:rgba(255,90,43,.22);
  clip-path:polygon(0 18%,100% 0,100% 82%,0 100%);pointer-events:none;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;opacity:.07;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.78);max-width:52ch;font-size:15px}
.cta-band .cta-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.cta-band .btn-ghost:hover{background:#fff;color:var(--ink-900);border-color:#fff}

/* ---------- others ---------- */
.others{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.other-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;display:flex;flex-direction:column;gap:8px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.other-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#cdc9bd}
.other-card h3{font-size:16px}
.other-card p{font-size:13px;color:var(--ink-500);line-height:1.7}
.other-card .tick{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--brand);margin-top:4px}
.other-card.current{border-color:var(--brand);border-left:3px solid var(--brand)}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-900);color:rgba(255,255,255,.78);margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px}
.foot-brand .brand{color:#fff;font-size:18px;margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.85;max-width:36ch;color:rgba(255,255,255,.68)}
.foot-col h3{
  font-size:13px;font-weight:600;letter-spacing:.06em;color:#fff;
  margin-bottom:18px;text-transform:none;
}
.foot-col a,.foot-col p{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px;transition:color .18s ease}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:22px;padding-bottom:22px;flex-wrap:wrap}
.foot-bar-inner p{font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- to-top ---------- */
.to-top{
  position:fixed;right:24px;bottom:96px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:var(--ink-900);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease,transform .18s ease;z-index:75;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0}
  .hero-figure img{aspect-ratio:16/9}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .others{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:44px 36px}
  .cta-band .cta-actions{justify-content:flex-start}
}
@media (max-width:768px){
  body{padding-bottom:76px;font-size:15px}
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .head-inner{height:56px;gap:16px}
  .main-nav{display:none}
  .head-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .tabbar{display:flex}
  .hero{padding:32px 0 56px}
  .hero::after{display:none}
  .hero-grid{gap:28px}
  .hero-lead{font-size:15px;margin-bottom:24px}
  .hero-actions{margin-bottom:26px}
  .hero-actions .btn{width:100%}
  .hero-mini{gap:20px}
  .hero-figure img{aspect-ratio:16/10;max-height:260px}
  .score-card{left:12px;bottom:12px;padding:10px 14px}
  .score-card .score-num{font-size:20px}
  .ability-grid{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .step-num{font-size:24px}
  .step-num small{display:inline;margin-left:8px;margin-top:0}
  .compare{grid-template-columns:1fr}
  .compare-col{padding:24px}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:none;border-bottom:1px solid var(--line);padding:24px}
  .metric:last-child{border-bottom:none}
  .faq-item summary{padding:16px 18px;font-size:16px;min-height:56px}
  .faq-body{padding:0 18px 20px}
  .cta-band{padding:32px 22px;border-radius:var(--r-md)}
  .cta-band .btn{width:100%}
  .others{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-top:48px;padding-bottom:32px}
  .foot-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{bottom:76px;right:16px}
}
@media (max-width:520px){
  .hero-mini{gap:16px}
  .hero-mini b{font-size:19px}
  .btn{height:46px;padding:0 20px}
  .ability-card{padding:22px}
}

/* roulang page: category4 */
:root{
  --bg:#F5F4EF;
  --surface:#FFFFFF;
  --surface-2:#EDEBE3;
  --line:#DCD9CF;
  --ink-900:#0A1F1A;
  --ink-700:#2C4A42;
  --ink-500:#5E7268;
  --brand:#FF5A2B;
  --brand-ink:#C93B12;
  --brand-soft:#FFE7DE;
  --accent:#B8F24A;
  --ok:#1F8A5B;
  --warn:#C7791A;
  --danger:#D93025;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,31,26,.06),0 8px 24px rgba(10,31,26,.06);
  --sh-2:0 16px 40px rgba(10,31,26,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;
  --pad:32px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad)}

/* ---------- 顶栏 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-head.is-scrolled{box-shadow:0 4px 18px rgba(10,31,26,.08)}
.head-inner{
  height:72px;display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink-900);white-space:nowrap}
.brand-mark{display:inline-flex;width:28px;height:28px}
.brand-mark svg{width:28px;height:28px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-700);
  padding:6px 0;border-bottom:3px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--ink-900);font-weight:700;border-bottom-color:var(--brand)}
.head-actions{display:flex;align-items:center;gap:14px}
.head-link{font-size:15px;font-weight:600;color:var(--ink-700);padding:6px 2px;border-bottom:3px solid transparent;transition:color .16s ease}
.head-link:hover{color:var(--brand)}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900)}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,90,43,.24)}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;transition:gap .16s ease}
.text-link:hover{gap:10px}
.text-link svg{width:16px;height:16px}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
}
.badge-dark{background:rgba(184,242,74,.16);color:var(--accent)}
.kicker{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--ink-500);text-transform:uppercase}
.kicker::before{content:"";width:12px;height:3px;background:var(--brand);border-radius:2px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:800}
.sec-head p{color:var(--ink-500);font-size:15px;margin-top:10px;max-width:62ch}
.sec-title-line{position:relative;padding-left:16px}
.sec-title-line::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 72px}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;
  background:var(--surface-2);clip-path:polygon(18% 0,100% 0,100% 100%,0 82%);
  z-index:0;opacity:.85;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-500);margin-bottom:20px}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.6}
.hero h1{font-size:clamp(28px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:16px 0 0}
.hero .lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-700);max-width:60ch}
.hero .lead strong{color:var(--ink-900)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-700)}
.hero-points svg{width:18px;height:18px;color:var(--ok);flex:none}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.media-card{
  position:absolute;left:-24px;bottom:-26px;width:min(280px,80%);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.media-card .row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.media-card .lbl{font-size:12px;color:var(--ink-500)}
.media-card .val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--ink-900)}
.media-card .bar{height:6px;border-radius:var(--r-pill);background:var(--surface-2);margin-top:12px;overflow:hidden}
.media-card .bar i{display:block;height:100%;width:78%;background:var(--accent);border-radius:var(--r-pill)}
.media-card .ticks{display:flex;gap:4px;margin-top:10px}
.media-card .ticks i{flex:1;height:4px;background:var(--surface-2);border-radius:2px}
.media-card .ticks i.on{background:var(--brand)}

/* ---------- 对照表 ---------- */
.cmp{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.cmp-head{display:grid;grid-template-columns:1fr 1fr;background:var(--surface-2);border-bottom:1px solid var(--line)}
.cmp-head span{padding:16px 24px;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--ink-700)}
.cmp-head span:last-child{color:var(--ink-900);border-left:1px solid var(--line)}
.cmp-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.cmp-row:last-child{border-bottom:none}
.cmp-row>div{padding:22px 24px;font-size:15px;line-height:1.75}
.cmp-a{color:var(--ink-500)}
.cmp-a::before{
  content:"";display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--danger);margin-right:10px;vertical-align:2px;
}
.cmp-b{color:var(--ink-900);border-left:1px solid var(--line);background:#FCFBF8;font-weight:500}
.cmp-b::before{
  content:"";display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--ok);margin-right:10px;vertical-align:2px;
}

/* ---------- 卡片网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card:hover .card-title{color:var(--brand)}
.card-thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-body{padding:24px 24px 26px}
.card-title{font-size:20px;font-weight:700;transition:color .16s ease}
.card-text{margin-top:10px;font-size:15px;color:var(--ink-700);line-height:1.8}
.card-list{margin-top:16px;display:grid;gap:8px}
.card-list li{display:flex;gap:8px;font-size:14px;color:var(--ink-500)}
.card-list svg{width:16px;height:16px;color:var(--ok);flex:none;margin-top:4px}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:700;color:var(--brand)}
.card-link svg{width:15px;height:15px}

/* ---------- 深色数据条 ---------- */
.band{background:var(--ink-900);color:#fff;border-radius:var(--r-lg);padding:44px 32px}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.band-cell{padding:0 24px;border-left:1px dashed rgba(255,255,255,.12)}
.band-cell:first-child{border-left:none;padding-left:0}
.band-cell .val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--accent);line-height:1.1}
.band-cell .val small{font-size:16px;color:rgba(255,255,255,.7);margin-left:4px;font-weight:600}
.band-cell .txt{margin-top:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .16s ease}
.faq details[open]{border-color:var(--brand)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  min-height:64px;padding:14px 22px;font-size:16px;font-weight:700;color:var(--ink-900);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";width:14px;height:14px;margin-left:auto;flex:none;
  background:
    linear-gradient(var(--ink-500),var(--ink-500)) center/14px 2px no-repeat,
    linear-gradient(var(--ink-500),var(--ink-500)) center/2px 14px no-repeat;
  transition:transform .2s ease,background-color .2s ease;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-body{
  padding:0 22px 20px;font-size:15px;color:var(--ink-700);line-height:1.9;
  border-left:3px solid var(--brand);margin-left:22px;padding-left:18px;
}

/* ---------- 互链 ---------- */
.links-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.link-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand)}
.link-card h3{font-size:17px;font-weight:700}
.link-card p{margin-top:8px;font-size:13px;color:var(--ink-500);line-height:1.7}
.link-card .go{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--brand)}
.link-card .go svg{width:14px;height:14px}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;background:var(--brand-soft);
  border-radius:var(--r-lg);padding:52px 40px;
}
.cta::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:420px;height:420px;
  background:rgba(255,90,43,.14);clip-path:polygon(22% 0,100% 0,100% 100%,0 78%);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;max-width:22ch}
.cta p{margin-top:12px;font-size:15px;color:var(--ink-700);max-width:46ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-900);color:#fff;margin-top:var(--sec);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .brand{color:#fff}
.foot-brand p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.85;max-width:36ch}
.foot-col h3{font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px}
.foot-col a,.foot-col p{display:block;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:10px;line-height:1.7}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;flex-wrap:wrap}
.foot-bar-inner p{font-size:13px;color:rgba(255,255,255,.56)}

/* ---------- 移动端抽屉 & Tab ---------- */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;
  transform:translateY(-100%);transition:transform .22s ease;
  display:flex;flex-direction:column;padding:20px 18px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);cursor:pointer;font-size:20px;line-height:1;color:var(--ink-900)}
.drawer nav{display:grid;gap:6px}
.drawer nav a{
  padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--brand)}
.drawer .drawer-cta{margin-top:24px}
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.tabbar ul{display:grid;grid-template-columns:repeat(4,1fr);height:60px}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--ink-500);
}
.tabbar a svg{width:22px;height:22px}
.tabbar a.active{color:var(--brand);font-weight:700}
.tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--brand);border-radius:2px;
}

/* ---------- 淡入 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--pad:24px;--sec:72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:2}
  .media-card{left:auto;right:16px;bottom:-18px}
  .band-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .band-cell:nth-child(3){border-left:none;padding-left:0}
  .links-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:768px){
  :root{--pad:18px;--sec:56px}
  body{font-size:15px;padding-bottom:76px}
  .head-inner{height:56px;gap:12px}
  .main-nav,.head-actions .head-link,.head-actions .btn{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .tabbar{display:block}
  .hero{padding:32px 0 48px}
  .hero::after{width:340px;height:340px;right:-140px;top:-100px}
  .hero .lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-media img{max-height:240px}
  .media-card{position:static;width:100%;margin-top:14px;left:auto;bottom:auto}
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}
  .cmp-head{display:none}
  .cmp-row{grid-template-columns:1fr;padding:18px 18px 6px}
  .cmp-row>div{padding:0 0 14px;border-left:none;background:transparent}
  .cmp-row>div::before{content:attr(data-label);display:block;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--ink-500);margin-bottom:6px}
  .cmp-a::before,.cmp-b::before{display:none}
  .cmp-b{background:transparent;border-top:1px dashed var(--line);padding-top:14px;font-weight:600}
  .grid-2{grid-template-columns:1fr}
  .band{padding:32px 20px}
  .band-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .band-cell{padding:0 16px}
  .band-cell:nth-child(odd){border-left:none;padding-left:0}
  .faq summary{min-height:56px;padding:12px 16px;font-size:15px}
  .faq .faq-body{margin-left:16px;padding:0 16px 18px 14px}
  .links-grid{grid-template-columns:1fr}
  .cta{padding:32px 22px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .band-cell .val{font-size:28px}
  .band-cell .txt{font-size:13px}
  .cmp-row>div{font-size:14.5px}
}