/* roulang page: index */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --card:#FDFCF8;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --pad:clamp(20px,4vw,56px);
  --gap-section:clamp(64px,9vw,120px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--ink-900);outline-offset:3px;border-radius:4px}
.dark-block a:focus-visible,.dark-block button:focus-visible,.dark-block input:focus-visible{outline-color:var(--accent)}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:var(--gap-section)}
.section-sm{padding-block:clamp(44px,6vw,84px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;
  font-size:16px;font-weight:600;line-height:1;white-space:nowrap;
  border:1.5px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .16s var(--ease);
}
.btn .arw{display:inline-block;transition:transform .24s var(--ease)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:var(--ink-900);border-color:var(--accent)}
.btn-primary:hover{background:var(--ink-900);color:var(--accent);border-color:var(--ink-900)}
.btn-primary:hover .arw{transform:translateX(3px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text)}
.btn-ghost:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900)}
.btn-dark{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900)}
.btn-dark:hover{background:var(--accent);color:var(--ink-900);border-color:var(--accent)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn:disabled{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text);padding-bottom:2px;border-bottom:2px solid transparent;transition:border-color .24s var(--ease),color .24s var(--ease)}
.link-arrow .arw{transition:transform .24s var(--ease)}
.link-arrow:hover{border-bottom-color:var(--accent)}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:120;background:rgba(247,246,241,.96);border-bottom:1px solid transparent;transition:border-color .24s var(--ease),box-shadow .24s var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 26px -24px rgba(10,15,12,.7)}
.nav-wrap{display:flex;align-items:center;gap:clamp(14px,2vw,32px);height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--ink-900);color:var(--accent);font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text{display:flex;align-items:flex-end;gap:4px;line-height:1}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:13px;font-weight:500;color:var(--text-2);transform:translateY(-3px)}
.nav-links{display:flex;align-items:center;gap:clamp(12px,1.5vw,24px);margin-left:auto}
.nav-links a{position:relative;padding:8px 0;font-size:15.5px;font-weight:500;transition:color .16s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--accent);transition:width .24s var(--ease)}
.nav-links a:hover::after,.nav-links a.is-active::after{width:100%}
.nav-links a:hover{color:var(--ink-900)}
.nav-cta{flex:0 0 auto;margin-left:8px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:110;
  background:var(--paper);padding:clamp(24px,6vw,40px) var(--pad) 40px;
  display:flex;flex-direction:column;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{font-size:22px;font-weight:700;padding:16px 0;border-bottom:1px solid var(--line);transition:color .16s var(--ease)}
.drawer-nav a.is-active{color:var(--ink-900);border-bottom-color:var(--accent)}
.drawer-cta{width:100%}
.drawer-note{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding-block:clamp(44px,6vw,88px) clamp(52px,7vw,96px)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(18,22,19,.04) 0 1px,transparent 1px 10px);
  opacity:.7;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,64px);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:22px;font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--text-2)}
.eyebrow .dot{width:8px;height:8px;background:var(--accent);border-radius:2px}
.hero h1{font-size:clamp(32px,4.9vw,60px);font-weight:800;line-height:1.08;letter-spacing:-.02em}
.hero-sub{margin-top:22px;font-size:clamp(16px,1.5vw,18px);line-height:1.75;color:var(--text-2);max-width:32ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;margin-top:30px;font-size:14px;color:var(--text-2)}
.hero-points li{display:flex;align-items:center}
.hero-points li+li::before{content:"";width:1px;height:12px;background:var(--line);margin:0 14px}
.hero-media{position:relative}
.hero-media .hero-img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow-2)}
.hero-thumb{position:absolute;right:-14px;bottom:-14px;width:112px;height:112px;object-fit:cover;border-radius:var(--r-sm);border:4px solid var(--paper);box-shadow:0 18px 34px -22px rgba(10,15,12,.7)}

/* ============ 横滚条 ============ */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2);overflow:hidden}
.ticker-track{display:flex;align-items:center;gap:40px;width:max-content;height:54px;padding-left:40px;animation:tickerMove 40s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-item{font-size:13px;letter-spacing:.1em;color:var(--text-2);white-space:nowrap}
.ticker-dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:0 0 auto}
@keyframes tickerMove{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ 通用板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(28px,4vw,48px);flex-wrap:wrap}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.section-desc{margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:52ch}
.kicker{display:inline-block;margin-bottom:14px;font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--accent-2)}

/* ============ 流程分栏 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,5vw,72px);align-items:start}
.split-sticky{position:sticky;top:108px}
.step{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:28px}
.step:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.step-num{display:block;font-size:clamp(36px,4vw,52px);font-weight:800;line-height:1;letter-spacing:-.03em;color:transparent;-webkit-text-stroke:1.2px rgba(18,22,19,.28);font-variant-numeric:tabular-nums;margin-bottom:14px}
.step h3{font-size:21px;font-weight:600;line-height:1.4}
.step p{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:54ch}

/* ============ 功能卡片 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.card:hover{border-color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.feature-main{display:flex;flex-direction:column;overflow:hidden}
.feature-main .media{aspect-ratio:16/10;overflow:hidden}
.feature-main .media img{width:100%;height:100%;object-fit:cover}
.feature-main .body{padding:clamp(20px,2.6vw,32px);display:flex;flex-direction:column;gap:14px;flex:1}
.feature-main h3{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.feature-main p{font-size:15px;line-height:1.85;color:var(--text-2)}
.feature-side{display:grid;gap:24px;align-content:start}
.feature-side .card{display:grid;grid-template-columns:104px 1fr;gap:16px;padding:16px;align-items:center}
.feature-side .card img{width:104px;height:104px;object-fit:cover;border-radius:var(--r-sm)}
.feature-side h3{font-size:19px;font-weight:600;line-height:1.4}
.feature-side p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2)}
.badge{display:inline-flex;align-items:center;align-self:flex-start;padding:5px 10px;border-radius:6px;font-size:12px;letter-spacing:.12em;background:var(--paper-2);color:var(--text)}
.badge-orange{background:transparent;border:1px solid var(--accent-2);color:var(--accent-2)}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-block:34px}
.stat-num{font-size:clamp(34px,4vw,54px);font-weight:800;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat-label{margin-top:12px;font-size:13px;letter-spacing:.08em;color:var(--text-2)}
.logo-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.logo-chip{display:grid;place-items:center;height:78px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper-2);font-size:14px;color:var(--text-2);opacity:.62;transition:opacity .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease)}
.logo-chip:hover{opacity:1;color:var(--text);border-color:var(--ink-700)}

/* ============ 最新信息 ============ */
.cms-grid{display:grid;grid-template-columns:8fr 4fr;gap:clamp(24px,3vw,44px);align-items:start}
.cms-list{display:grid;gap:18px}
.cms-card{display:grid;grid-template-columns:210px 1fr;gap:20px;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.cms-card:hover{border-color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.cms-card .thumb{overflow:hidden;border-radius:var(--r-sm);background:var(--paper-2)}
.cms-card .thumb img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.cms-card .txt{display:flex;flex-direction:column;gap:10px;min-width:0}
.cms-card h3{font-size:19px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.cms-side{border-left:1px solid var(--line);padding-left:clamp(20px,2.4vw,32px)}
.cms-side .side-head{font-size:13px;letter-spacing:.14em;color:var(--text-2);margin-bottom:18px}
.cms-side li{padding:16px 0;border-bottom:1px solid var(--line)}
.cms-side li:first-child{padding-top:0}
.cms-side li:last-child{border-bottom:0}
.cms-side .s-cat{font-size:12px;letter-spacing:.12em;color:var(--accent-2)}
.cms-side .s-title{display:block;margin-top:8px;font-size:15.5px;font-weight:600;line-height:1.5;transition:color .16s var(--ease)}
.cms-side li:hover .s-title{color:var(--ink-900);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px}
.cms-side .s-time{display:block;margin-top:8px;font-size:12.5px;color:var(--text-2)}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;min-height:220px;padding:32px;border:1px dashed var(--line);border-radius:var(--r-md);text-align:center;color:var(--text-2);font-size:14.5px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0;font-size:17px;font-weight:600;line-height:1.5;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:22px;font-weight:400;color:var(--text-2);transition:transform .24s var(--ease),color .24s var(--ease)}
.faq-item[open] summary::after{content:"−";color:var(--ink-900)}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:58ch}

/* ============ 深色 CTA ============ */
.dark-block{background:var(--ink-900);color:var(--text-inv)}
.cta-section{padding-block:var(--gap-section)}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,5vw,64px);align-items:center}
.cta-grid h2{font-size:clamp(26px,3.4vw,42px);font-weight:800;line-height:1.18;letter-spacing:-.015em}
.cta-grid .lead{margin-top:18px;font-size:15.5px;line-height:1.85;color:rgba(247,246,241,.72);max-width:44ch}
.subscribe{display:flex;gap:12px}
.subscribe input{flex:1;min-width:0;height:52px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--line-dark);background:var(--ink-800);color:var(--text-inv);transition:border-color .24s var(--ease),box-shadow .24s var(--ease)}
.subscribe input::placeholder{color:rgba(247,246,241,.42)}
.subscribe input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(205,255,79,.22)}
.form-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(247,246,241,.55)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--text-inv);padding-top:clamp(48px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(24px,4vw,56px);padding-bottom:clamp(36px,5vw,56px)}
.footer-brand .brand-text strong{color:var(--text-inv)}
.footer-brand .brand-text em{color:rgba(247,246,241,.6)}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink-900)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(247,246,241,.6);max-width:26ch}
.footer-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.footer-actions .btn-ghost{color:var(--text-inv);border-color:rgba(247,246,241,.4)}
.footer-actions .btn-ghost:hover{background:var(--accent);color:var(--ink-900);border-color:var(--accent)}
.footer-col h3{margin-bottom:16px;font-size:13px;font-weight:600;letter-spacing:.14em;color:rgba(247,246,241,.55)}
.footer-col li+li{margin-top:11px}
.footer-col a,.footer-col p{font-size:14.5px;color:rgba(247,246,241,.8);transition:color .16s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:24px;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(247,246,241,.5)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{transition:color .16s var(--ease)}
.footer-links a:hover{color:var(--accent)}

/* ============ 入场动效 ============ */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
[data-reveal].in{opacity:1;transform:none}

/* ============ 断点 ============ */
@media (max-width:1279px){
  :root{--container:1160px}
  .nav-links{gap:12px}
  .nav-links a{font-size:15px}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-sub{max-width:46ch}
  .split{grid-template-columns:1fr;gap:32px}
  .split-sticky{position:static}
  .feature-grid{grid-template-columns:1fr}
  .cms-grid{grid-template-columns:1fr}
  .cms-side{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .nav-wrap{height:68px}
  .drawer{top:68px}
  .hero-media .hero-thumb{display:none}
  .hero-actions .btn{flex:1 1 160px}
  .stats{grid-template-columns:1fr 1fr;gap:28px 20px}
  .logo-wall{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .cms-card{grid-template-columns:1fr}
  .cms-card .thumb img{aspect-ratio:16/9}
  .feature-side .card{grid-template-columns:80px 1fr}
  .feature-side .card img{width:80px;height:80px}
  .subscribe{flex-direction:column}
  .subscribe .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text em{display:none}
  .hero h1{font-size:clamp(30px,8vw,38px)}
  .ticker-track{animation-duration:60s}
  .logo-wall{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--r-md);object-fit:cover;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 clamp(20px,4vw,56px);
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,246,241,.94);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-bar{
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,40px);
  min-height:78px;
  transition:min-height .24s var(--ease);
}
.site-header.is-scrolled .nav-bar{min-height:68px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:11px;
  background:var(--ink-900);
  color:var(--accent);
  font-weight:800;
  font-size:16px;
  letter-spacing:-.04em;
  transform:skewX(-8deg);
}
.brand-mark > *{transform:skewX(8deg);}
.brand-text{
  display:flex;
  align-items:baseline;
  gap:4px;
  line-height:1;
}
.brand-text strong{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--text);
}
.brand-text em{
  font-style:normal;
  font-size:13px;
  font-weight:500;
  color:var(--text-2);
  transform:translateY(2px);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.5vw,24px);
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .24s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:3px;
  border-radius:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--text);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:8px;flex-shrink:0;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--paper);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink-700);}
.nav-toggle span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:background .16s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:70;
  display:none;
  flex-direction:column;
  padding:24px clamp(20px,6vw,40px) 32px;
  background:var(--ink-900);
  color:var(--text-inv);
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-dark);
}
.drawer-brand{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  color:var(--text-inv);
  font-weight:800;
  font-size:19px;
}
.drawer-brand em{font-style:normal;font-size:12px;font-weight:500;opacity:.7;}
.drawer-close{
  width:44px;
  height:44px;
  border:1px solid var(--line-dark);
  border-radius:var(--r-sm);
  color:var(--text-inv);
  font-size:20px;
  line-height:1;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-links{display:flex;flex-direction:column;margin:18px 0 26px;}
.drawer-links a{
  padding:16px 0;
  font-size:22px;
  font-weight:700;
  color:var(--text-inv);
  border-bottom:1px solid var(--line-dark);
  transition:color .24s var(--ease),padding-left .24s var(--ease);
}
.drawer-links a:hover{color:var(--accent);padding-left:6px;}
.drawer-links a.is-active{color:var(--accent);}
.drawer-foot{margin-top:auto;}
.drawer-foot p{font-size:13px;color:rgba(247,246,241,.6);margin-top:16px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .16s var(--ease),box-shadow .24s var(--ease);
}
.btn .arw{transition:transform .24s var(--ease);}
.btn:hover .arw{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--accent);
  color:var(--ink-900);
  box-shadow:0 0 0 0 rgba(205,255,79,0);
}
.btn-primary:hover{background:var(--ink-900);color:var(--text-inv);box-shadow:inset 0 0 0 1px var(--accent);}
.btn-secondary{
  background:transparent;
  color:var(--text);
  border:1.5px solid var(--text);
}
.btn-secondary:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-ghost{
  background:transparent;
  color:var(--text-inv);
  border:1px solid var(--line-dark);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  border-bottom:2px solid transparent;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.link-more:hover{border-bottom-color:var(--accent);}
.link-more .arw{transition:transform .24s var(--ease);}
.link-more:hover .arw{transform:translateX(2px);}

/* ---------- Shared bits ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-2);
}
.eyebrow::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--accent);
  flex-shrink:0;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  background:var(--paper-2);
  color:var(--text);
}
.badge-accent{
  background:transparent;
  border:1px solid var(--accent-2);
  color:var(--accent-2);
}
.section{padding:clamp(56px,8vw,110px) 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:clamp(28px,4vw,44px);
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.2;
}
.section-head p{
  max-width:520px;
  font-size:15px;
  color:var(--text-2);
}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Breadcrumb ---------- */
.crumbs{
  padding:22px 0 0;
  font-size:14px;
  color:var(--text-2);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--line);}
.crumbs a{transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--text);}
.crumbs .current{color:var(--text-2);}

/* ---------- Hero ---------- */
.hero{
  padding:clamp(28px,4vw,52px) 0 clamp(48px,7vw,90px);
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.16;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.hero-copy h1{
  margin:16px 0 18px;
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
}
.hero-copy h1 mark{
  background:linear-gradient(transparent 62%,rgba(205,255,79,.75) 62%);
  color:inherit;
  padding:0 2px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:56ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-points li{
  font-size:14px;
  color:var(--text-2);
  padding:0 18px;
  border-left:1px solid var(--line);
}
.hero-points li:first-child{padding-left:0;border-left:0;}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:visible;
}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);
  background:var(--paper-2);
}
.hero-chip{
  position:absolute;
  left:-16px;
  bottom:-18px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-2);
}
.hero-chip img{
  width:44px;
  height:44px;
  border-radius:var(--r-sm);
  object-fit:cover;
  flex-shrink:0;
}
.hero-chip strong{display:block;font-size:14px;font-weight:700;line-height:1.3;}
.hero-chip span{display:block;font-size:12px;color:rgba(247,246,241,.66);line-height:1.4;}

/* ---------- Ticker ---------- */
.ticker{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background:var(--paper-2);
}
.ticker-track{
  display:flex;
  align-items:center;
  gap:40px;
  height:48px;
  width:max-content;
  animation:slide 40s linear infinite;
}
.ticker:hover .ticker-track{animation-play-state:paused;}
.ticker-track span{
  display:inline-flex;
  align-items:center;
  gap:40px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-2);
  white-space:nowrap;
}
.ticker-track span::after{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--accent);
  flex-shrink:0;
}
@keyframes slide{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}

/* ---------- Feature cards (staggered) ---------- */
.feat-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
}
.feat-card{
  grid-column:span 6;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:clamp(22px,2.6vw,32px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.feat-card:hover{
  border-color:var(--ink-700);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.feat-card.wide{grid-column:span 7;}
.feat-card.narrow{grid-column:span 5;}
.feat-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;
  height:48px;
  border-radius:var(--r-sm);
  background:rgba(205,255,79,.28);
  color:var(--ink-900);
}
.feat-icon svg{width:24px;height:24px;}
.feat-card h3{
  font-size:clamp(20px,2.2vw,22px);
  font-weight:700;
  line-height:1.4;
}
.feat-card p{
  font-size:15px;
  color:var(--text-2);
}
.feat-list{display:flex;flex-direction:column;gap:10px;margin-top:2px;}
.feat-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-2);
}
.feat-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--accent);
}
.feat-media{
  margin-top:auto;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--paper-2);
}
.feat-media img{width:100%;aspect-ratio:16/10;border-radius:0;}

/* ---------- Stats band ---------- */
.stats-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(40px,6vw,72px) 0;
}
.stats-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.stats-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  color:var(--text-inv);
}
.stats-head p{font-size:14px;color:rgba(247,246,241,.66);max-width:520px;}
.stats-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
}
.stat{
  padding:26px 20px;
  border-left:1px solid var(--line-dark);
}
.stat:first-child{border-left:0;padding-left:0;}
.stat b{
  display:block;
  font-family:"Barlow","Oswald","PingFang SC",system-ui,sans-serif;
  font-size:clamp(36px,4.6vw,54px);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.03em;
  color:var(--accent);
}
.stat small{
  display:block;
  margin-top:10px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(247,246,241,.66);
}

/* ---------- Steps / timeline ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
  position:relative;
}
.step{
  position:relative;
  padding:28px 24px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.step:hover{border-color:var(--ink-700);transform:translateY(-2px);}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:50%;
  background:var(--accent);
  color:var(--ink-900);
  font-family:"Barlow",system-ui,sans-serif;
  font-size:15px;
  font-weight:800;
  margin-bottom:16px;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 clamp(32px,5vw,64px);
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:6px 0;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 0;
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ink-700);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:18px;
  height:18px;
  border-radius:50%;
  border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:8px;
  height:1.5px;
  background:var(--text);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .24s var(--ease);}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--ink-700);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg);}
.faq-body{
  padding:0 0 20px;
  font-size:15px;
  color:var(--text-2);
  max-width:60ch;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,7vw,88px) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.cta-grid h2{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:800;
  line-height:1.2;
  color:var(--text-inv);
}
.cta-grid p{
  margin-top:14px;
  font-size:15px;
  color:rgba(247,246,241,.72);
  max-width:52ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.cta-panel{
  padding:26px;
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  background:var(--ink-800);
}
.cta-panel h3{font-size:17px;font-weight:700;color:var(--text-inv);margin-bottom:12px;}
.cta-panel ul{display:flex;flex-direction:column;gap:10px;}
.cta-panel li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:rgba(247,246,241,.72);
}
.cta-panel li::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--accent);
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,80px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(32px,4vw,48px);
}
.footer-brand .brand-text strong{color:var(--text-inv);}
.footer-brand .brand-text em{color:rgba(247,246,241,.6);}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink-900);}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  color:rgba(247,246,241,.66);
  max-width:30ch;
}
.footer-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(247,246,241,.55);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14.5px;
  color:rgba(247,246,241,.82);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:14px;color:rgba(247,246,241,.6);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-bottom p{font-size:13px;color:rgba(247,246,241,.55);}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-links a{
  font-size:13px;
  color:rgba(247,246,241,.62);
  transition:color .2s var(--ease);
}
.footer-links a:hover{color:var(--accent);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Breakpoints ---------- */
@media (max-width:1279px){
  .container{max-width:1160px;}
}
@media (max-width:1199px){
  .nav-links{gap:12px;}
  .nav-links a{font-size:14px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-cta{margin-left:10px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-chip{left:auto;right:12px;bottom:-16px;}
  .feat-card.wide,.feat-card.narrow{grid-column:span 12;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .faq-wrap{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .stat{border-left:0;padding-left:0;}
  .stat:nth-child(even){border-left:1px solid var(--line-dark);padding-left:20px;}
  .stat:nth-child(n+3){border-top:1px solid var(--line-dark);}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .nav-bar{min-height:66px;gap:10px;}
  .brand-mark{width:38px;height:38px;font-size:14px;border-radius:9px;}
  .brand-text strong{font-size:17px;}
  .brand-text em{font-size:11px;}
  .nav-cta .btn{height:40px;padding:0 14px;font-size:13px;}
  .nav-cta .btn .btn-label-long{display:none;}
  .hero-points{flex-direction:column;gap:10px;}
  .hero-points li{padding:0;border-left:0;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .hero-chip{position:static;margin-top:16px;left:auto;bottom:auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .hero-copy h1{font-size:clamp(28px,8vw,36px);}
  .stats-row{grid-template-columns:1fr 1fr;}
  .stat b{font-size:32px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-actions,.cta-actions{flex-direction:column;}
  .footer-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --surface:#FFFFFF;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --gap-block:clamp(56px,7vw,96px);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow","Oswald","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input,textarea,select{font:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 clamp(20px,4vw,56px);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(247,246,241,.92);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,40px);
  height:78px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:66px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink-900);
  color:var(--accent);
  font-family:var(--font-num);
  font-size:17px;font-weight:700;letter-spacing:-.02em;
  clip-path:polygon(0 0,100% 0,100% 76%,74% 100%,0 100%);
  border-radius:10px 4px 10px 4px;
}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;line-height:1;}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:13px;font-weight:500;color:var(--text-2);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  padding:9px 12px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  border-radius:8px;
  transition:color .16s var(--ease),background .16s var(--ease);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:3px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a:hover{background:var(--paper-2);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:8px;}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  align-items:center;justify-content:center;
  border:1.5px solid var(--text);
  border-radius:var(--r-sm);
  background:transparent;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;transition:transform .24s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(-90deg);}
.nav-toggle[aria-expanded="true"] span::after{opacity:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:16px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
  border:1.5px solid transparent;
  white-space:nowrap;
}
.btn .arw{transition:transform .16s var(--ease);}
.btn:hover .arw{transform:translateX(3px);}
.btn-primary{background:var(--accent);color:var(--ink-900);}
.btn-primary:hover{background:var(--ink-900);color:var(--text-inv);box-shadow:inset 0 0 0 1px var(--accent);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-sm{min-height:44px;padding:0 20px;font-size:15px;}
.btn:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--text);
}
.link-arrow .arw{transition:transform .16s var(--ease);}
.link-arrow:hover .arw{transform:translateX(3px);}
.link-arrow:hover{color:var(--ink-900);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  left:0;right:0;top:0;
  height:88vh;
  background:var(--paper);
  z-index:110;
  transform:translateY(-104%);
  transition:transform .4s var(--ease);
  padding:96px clamp(20px,6vw,40px) 32px;
  overflow-y:auto;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.drawer.is-open{transform:translateY(0);}
.drawer-list{display:flex;flex-direction:column;gap:2px;}
.drawer-list a{
  display:block;
  padding:14px 0;
  font-size:22px;
  font-weight:700;
  border-bottom:1px solid var(--line);
  opacity:0;
  transform:translateY(-8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),color .16s var(--ease);
}
.drawer.is-open .drawer-list a{opacity:1;transform:none;}
.drawer-list a:hover{color:var(--accent-2);}
.drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot p{font-size:14px;color:var(--text-2);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:clamp(28px,4vw,44px) 0 clamp(28px,4vw,40px);
  border-bottom:1px solid var(--line);
  background:
    repeating-linear-gradient(135deg,rgba(14,21,18,.028) 0 1px,transparent 1px 12px);
}
.breadcrumb{font-size:14px;color:var(--text-2);margin-bottom:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;max-width:100%;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--text);}
.breadcrumb .is-current{
  color:var(--text-2);
  max-width:26ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;
  border-radius:6px;
  font-size:12px;
  letter-spacing:.12em;
  font-weight:600;
  background:var(--paper-2);
  color:var(--text);
  border:1px solid var(--line);
  text-transform:uppercase;
}
.badge-accent{
  background:transparent;
  border-color:var(--accent-2);
  color:var(--accent-2);
}
.article-title{
  margin:18px 0 0;
  font-size:clamp(30px,4.2vw,44px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.015em;
  max-width:24ch;
}
.article-lead{
  margin-top:18px;
  max-width:62ch;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:26px;
  font-size:14px;
  color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.article-meta .meta-num{font-family:var(--font-num);font-weight:600;color:var(--text);font-size:15px;}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto;}
.share-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  font-size:13px;
  font-weight:600;
  transition:color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.share-btn:hover{color:var(--text);border-color:var(--ink-700);transform:translateY(-2px);}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;
  padding:var(--gap-block) 0;
  align-items:start;
}

/* ---------- 正文排版 ---------- */
.prose{
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  overflow-wrap:break-word;
}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 1.4em;}
.prose h2{
  position:relative;
  margin:2.2em 0 .8em;
  padding-left:20px;
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;top:.42em;
  width:3px;height:24px;
  background:var(--accent);
  border-radius:2px;
}
.prose h3{
  margin:1.6em 0 .6em;
  font-size:20px;
  font-weight:600;
  line-height:1.4;
}
.prose h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;}
.prose ul,.prose ol{margin:0 0 1.4em;padding:0;}
.prose ul li,.prose ol li{
  position:relative;
  padding-left:20px;
  margin:0 0 .6em;
}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:6px;
  background:var(--accent);
  border-radius:1px;
}
.prose ol{counter-reset:pcount;}
.prose ol li{counter-increment:pcount;}
.prose ol li::before{
  content:counter(pcount) ".";
  position:absolute;
  left:0;top:0;
  font-family:var(--font-num);
  font-weight:600;
  color:var(--accent-2);
  font-size:15px;
}
.prose blockquote{
  margin:1.8em 0;
  padding:24px 24px 24px 26px;
  background:var(--paper-2);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text);
  font-size:16px;
  line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{
  width:100%;
  border-radius:var(--r-md);
  margin:1.6em 0 .6em;
  border:1px solid var(--line);
}
.prose figure{margin:1.8em 0;}
.prose figcaption{
  font-size:13px;
  color:var(--text-2);
  text-align:center;
  margin-top:10px;
}
.prose a{
  color:var(--text);
  font-weight:600;
  border-bottom:2px solid var(--accent);
  transition:background .16s var(--ease);
}
.prose a:hover{background:var(--accent);}
.prose strong{font-weight:700;}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
}
.prose pre{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:20px;
  border-radius:var(--r-md);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:1.6em 0;
}
.prose pre code{background:none;border:0;padding:0;color:inherit;}
.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:1.6em 0;
}
.table-wrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:var(--r-md);}
.prose .table-wrap table{margin:0;min-width:520px;}
.prose th,.prose td{
  border-bottom:1px solid var(--line);
  padding:12px 16px;
  text-align:left;
}
.prose th{background:var(--paper-2);font-weight:600;}
.prose tr:last-child td{border-bottom:0;}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:18px;
  min-height:240px;
  padding:40px 24px;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  text-align:center;
  color:var(--text-2);
  font-size:15px;
}
.empty-state strong{font-size:20px;color:var(--text);font-weight:700;}

/* ---------- 标签与文末 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:12px;letter-spacing:.12em;color:var(--text-2);font-weight:600;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 12px;
  border-radius:6px;
  background:var(--paper-2);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text);
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.tag:hover{border-color:var(--ink-700);background:var(--surface);}
.back-row{margin-top:32px;display:flex;}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow-1);
}
.side-card h2{
  font-size:13px;
  letter-spacing:.12em;
  font-weight:700;
  color:var(--text-2);
  margin-bottom:16px;
  text-transform:uppercase;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:44vh;overflow-y:auto;}
.toc-list a{
  position:relative;
  display:block;
  padding:7px 0 7px 14px;
  font-size:14px;
  line-height:1.6;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease),padding-left .16s var(--ease);
}
.toc-list a.is-sub{padding-left:26px;font-size:13px;}
.toc-list a:hover{color:var(--text);}
.toc-list a.is-active{color:var(--text);font-weight:600;border-left-color:var(--accent);}
.toc-empty{font-size:13px;color:var(--text-2);line-height:1.7;}

.related-list{display:flex;flex-direction:column;gap:16px;}
.related-item{display:flex;gap:12px;align-items:flex-start;transition:transform .16s var(--ease);}
.related-item:hover{transform:translateY(-2px);}
.related-item img{width:72px;height:54px;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--line);flex:0 0 auto;}
.related-item strong{
  display:block;
  font-size:14px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
}
.related-item span{display:block;font-size:12px;color:var(--text-2);margin-top:4px;}
.side-cta{
  background:var(--ink-900);
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  padding:24px;
  color:var(--text-inv);
}
.side-cta h2{
  font-size:20px;
  font-weight:700;
  line-height:1.35;
  color:var(--text-inv);
  letter-spacing:-.01em;
  margin-bottom:10px;
  text-transform:none;
}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(247,246,241,.72);margin-bottom:18px;}
.side-cta .btn{width:100%;min-height:46px;font-size:15px;}
.side-cta .thumb{
  width:100%;
  border-radius:var(--r-sm);
  margin-bottom:18px;
  border:1px solid var(--line-dark);
  object-fit:cover;
  height:120px;
}

/* ---------- 相关推荐 ---------- */
.related-section{
  padding:0 0 var(--gap-block);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  letter-spacing:-.015em;
  line-height:1.25;
}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.card:hover{border-color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 深色 CTA 条 ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,84px) 0;
}
.cta-band .cta-inner{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.cta-band h2{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
}
.cta-band h2 em{font-style:normal;color:var(--accent);}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(247,246,241,.74);max-width:46ch;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input[type="email"]{
  flex:1 1 220px;
  min-height:50px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  background:var(--ink-800);
  color:var(--text-inv);
  font-size:15px;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.cta-form input[type="email"]::placeholder{color:rgba(247,246,241,.42);}
.cta-form input[type="email"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(205,255,79,.28);}
.cta-note{flex:1 1 100%;font-size:13px;color:rgba(247,246,241,.55);line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,80px) 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,2.6fr) minmax(0,2.6fr) minmax(0,2.8fr);
  gap:clamp(24px,4vw,48px);
  padding-bottom:40px;
}
.footer-brand .brand-mark{background:var(--ink-800);}
.footer-brand .brand-text strong{color:var(--text-inv);}
.footer-brand .brand-text em{color:rgba(247,246,241,.6);}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,241,.68);
  max-width:26ch;
}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.footer-actions .btn-ghost{color:var(--text-inv);border-color:rgba(247,246,241,.4);}
.footer-actions .btn-ghost:hover{background:var(--text-inv);color:var(--ink-900);border-color:var(--text-inv);}
.footer-col h3{
  font-size:13px;
  letter-spacing:.12em;
  font-weight:700;
  color:rgba(247,246,241,.6);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(247,246,241,.82);
  transition:color .16s var(--ease);
}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:13px;line-height:1.8;color:rgba(247,246,241,.6);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:24px;
  border-top:1px solid var(--line-dark);
  font-size:13px;
  color:rgba(247,246,241,.55);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:rgba(247,246,241,.7);transition:color .16s var(--ease);}
.footer-links a:hover{color:var(--accent);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{gap:36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .sidebar{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .side-card,.side-cta{flex:1 1 300px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band .cta-inner{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:16px;}
  .header-inner{height:68px;}
  .brand-text strong{font-size:18px;}
  .brand-text em{font-size:12px;}
  .article-title{max-width:none;}
  .share-group{margin-left:0;width:100%;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .related-item img{width:84px;height:60px;}
  .side-card,.side-cta{flex:1 1 100%;}
  .prose{font-size:16.5px;line-height:1.85;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .article-hero{background:none;}
  .header-actions .nav-cta{display:none;}
  .article-meta{gap:8px 14px;}
  .side-card{padding:18px;}
  .drawer-list a{font-size:20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .cta-form input[type="email"]{flex:1 1 100%;}
  .cta-form .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow","Oswald","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:clamp(20px,4vw,56px);
  padding-right:clamp(20px,4vw,56px);
}
.section{padding:clamp(56px,7vw,104px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--text-2);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--accent);
  border-radius:2px;
  display:inline-block;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,246,241,.86);
  backdrop-filter:none;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
  transition:min-height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:68px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;
  place-items:center;
  background:var(--ink-900);
  color:var(--accent);
  border-radius:10px;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:800;
  letter-spacing:.02em;
  transform:skewX(-8deg);
}
.brand-text{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  line-height:1;
}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:.01em}
.brand-text em{
  font-style:normal;
  font-size:12.5px;
  font-weight:500;
  color:var(--text-2);
  transform:translateY(3px);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:clamp(14px,1.6vw,26px);
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:6px 0;
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:3px;width:0;
  background:var(--accent);
  border-radius:2px;
  transition:width .24s var(--ease);
}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{font-weight:700}
.nav-links a.is-active::after{width:100%}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  margin-left:8px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--text)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  display:none;
  border-top:1px solid var(--line);
  background:var(--paper);
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.mobile-menu.is-open{max-height:88vh;overflow-y:auto}
.mobile-menu .mm-inner{padding:18px 0 26px}
.mobile-menu a.mm-link{
  display:block;
  font-size:20px;
  font-weight:700;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  transition:color .18s var(--ease);
}
.mobile-menu a.mm-link.is-active{color:var(--text);box-shadow:inset 3px 0 0 var(--accent);padding-left:12px}
.mobile-menu a.mm-link:hover{color:var(--text-2)}
.mobile-menu .mm-cta{margin-top:20px;display:grid;gap:10px}
.mobile-menu .mm-note{font-size:13px;color:var(--text-2);margin-top:14px;line-height:1.7}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease);
}
.btn .arw{transition:transform .2s var(--ease);font-size:15px;line-height:1}
.btn:hover .arw{transform:translateX(2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:var(--ink-900);border-color:var(--accent)}
.btn-primary:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900)}
.btn-secondary{background:transparent;color:var(--text);border-color:var(--text)}
.btn-secondary:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--text);background:var(--paper-2)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;pointer-events:none}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  padding:4px 0;
  border-bottom:2px solid transparent;
  transition:border-color .22s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--accent)}
.link-arrow .arw{transition:transform .2s var(--ease)}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);flex-wrap:wrap}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--line);font-size:13px}
.crumbs a{color:var(--text-2);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--text)}
.crumbs li[aria-current]{color:var(--text-2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Hero ---------- */
.hero{padding:clamp(28px,4vw,52px) 0 clamp(36px,5vw,64px)}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.hero h1{
  font-size:clamp(32px,4.4vw,52px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  margin:16px 0 18px;
}
.hero h1 .hl{
  position:relative;
  display:inline-block;
  white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:.08em;
  height:.32em;
  background:var(--accent);
  border-radius:3px;
  z-index:-1;
}
.hero-lead{
  font-size:17px;
  color:var(--text-2);
  max-width:46ch;
  line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:26px;
  border-top:1px solid var(--line);
  padding-top:18px;
}
.hero-points span{
  font-size:13.5px;
  color:var(--text-2);
  padding-right:16px;
  margin-right:16px;
  border-right:1px solid var(--line);
  line-height:1.5;
}
.hero-points span:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-media{position:relative}
.hero-media .frame{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  background:var(--paper-2);
  aspect-ratio:16/11;
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-media .float-card{
  position:absolute;
  left:-18px;
  bottom:-20px;
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:12px 16px;
  box-shadow:var(--shadow-1);
  max-width:270px;
}
.hero-media .float-card .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent-2);
  flex:none;
}
.hero-media .float-card strong{font-size:14px;font-weight:700;display:block;line-height:1.4}
.hero-media .float-card small{font-size:12.5px;color:var(--text-2);line-height:1.4;display:block}

/* ---------- Chips ---------- */
.chip-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.chip-scroll{
  display:flex;
  gap:10px;
  padding:16px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.chip-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:42px;
  padding:0 18px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  font-size:14px;
  font-weight:500;
  color:var(--text);
  background:transparent;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease);
}
.chip:hover{border-color:var(--ink-900);transform:translateY(-1px)}
.chip.is-active{background:var(--accent);border-color:var(--accent);color:var(--ink-900);font-weight:700}
.chip .num{
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
  opacity:.65;
}

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat-strip .stat{
  padding:26px 20px 24px 0;
  border-right:1px solid var(--line);
}
.stat-strip .stat:last-child{border-right:0;padding-right:0}
.stat-strip .stat:not(:first-child){padding-left:24px}
.stat-num{
  font-family:var(--font-num);
  font-size:clamp(34px,4vw,50px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  display:block;
  color:var(--text);
}
.stat-num em{font-style:normal;color:var(--accent-2);font-size:.55em;margin-left:2px}
.stat-label{display:block;font-size:13px;color:var(--text-2);margin-top:10px;letter-spacing:.02em}

/* ---------- Split layout ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:clamp(28px,4vw,60px);
  align-items:start;
}
.prose h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
  position:relative;
  padding-left:20px;
  margin:0 0 16px;
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:3px;height:1em;
  background:var(--accent);
  border-radius:2px;
}
.prose h3{
  font-size:20px;
  font-weight:600;
  margin:28px 0 10px;
}
.prose p{color:var(--text-2);margin-bottom:14px}
.prose p strong{color:var(--text);font-weight:700}
.prose .block{
  padding:clamp(24px,3vw,34px) 0;
  border-bottom:1px solid var(--line);
}
.prose .block:last-child{border-bottom:0;padding-bottom:0}
.prose .block:first-child{padding-top:0}
.check-list{display:grid;gap:12px;margin:18px 0 6px}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:8px;height:8px;
  background:var(--accent);
  border-radius:2px;
}
.check-list li b{color:var(--text);font-weight:700}
.inline-note{
  border-left:3px solid var(--accent);
  background:var(--paper-2);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;
  margin:22px 0;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.85;
}
.inline-note strong{color:var(--text)}

/* ---------- Sidebar ---------- */
.side{position:sticky;top:96px}
.side-card{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--paper);
  padding:22px 22px 18px;
  box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:18px}
.side-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--text-2);
  font-weight:600;
  margin-bottom:14px;
}
.side-index a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:11px 0 11px 12px;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.side-index li:last-child a{border-bottom:0}
.side-index a .idx{
  font-family:var(--font-num);
  font-size:12px;
  color:var(--text-2);
  opacity:.7;
  flex:none;
}
.side-index a:hover,.side-index a.is-active{
  color:var(--text);
  border-left-color:var(--accent);
  background:var(--paper-2);
  font-weight:600;
}
.side-dark{
  background:var(--ink-900);
  border:1px solid var(--line-dark);
  border-radius:var(--r-md);
  padding:24px 22px;
  color:var(--text-inv);
  margin-top:18px;
}
.side-dark h3{
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
  color:var(--text-inv);
}
.side-dark p{font-size:14px;line-height:1.75;color:rgba(247,246,241,.66);margin-bottom:18px}
.side-dark .btn{width:100%}

/* ---------- FAQ ---------- */
.faq-head{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,6fr);
  gap:clamp(24px,4vw,56px);
  align-items:end;
  margin-bottom:clamp(24px,3vw,40px);
}
.faq-head h2{
  font-size:clamp(26px,3.2vw,36px);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  margin-top:12px;
}
.faq-head p{font-size:16px;color:var(--text-2);max-width:44ch}
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 clamp(28px,4vw,56px);
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--text-2)}
.faq-item .sign{
  flex:none;
  width:22px;height:22px;
  position:relative;
  margin-top:3px;
  transition:transform .24s var(--ease);
}
.faq-item .sign::before,
.faq-item .sign::after{
  content:"";
  position:absolute;
  background:var(--text);
  border-radius:2px;
}
.faq-item .sign::before{left:3px;right:3px;top:10px;height:2px}
.faq-item .sign::after{top:3px;bottom:3px;left:10px;width:2px;transition:opacity .24s var(--ease)}
.faq-item[open] .sign{transform:rotate(180deg)}
.faq-item[open] .sign::after{opacity:0}
.faq-item .answer{
  padding:0 0 22px 0;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:56ch;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,84px) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,4fr);
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.cta-band h2{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:var(--text-inv);
}
.cta-band h2 .accent-word{color:var(--accent)}
.cta-band p{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:rgba(247,246,241,.68);
  max-width:52ch;
}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:13px;font-weight:500;color:rgba(247,246,241,.7)}
.cta-field{display:flex;gap:10px}
.cta-field input{
  flex:1 1 auto;
  min-width:0;
  height:50px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  background:var(--ink-800);
  color:var(--text-inv);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-field input::placeholder{color:rgba(247,246,241,.38)}
.cta-field input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(205,255,79,.28);
}
.cta-privacy{font-size:12.5px;color:rgba(247,246,241,.48);line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  border-top:1px solid var(--line-dark);
  padding:clamp(44px,6vw,72px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(28px,4vw,48px);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark{background:var(--ink-800);color:var(--accent)}
.footer-brand .brand-text strong{color:var(--text-inv)}
.footer-brand .brand-text em{color:rgba(247,246,241,.55)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(247,246,241,.6);max-width:30ch}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.footer-actions .btn-ghost{color:var(--text-inv);border-color:var(--line-dark)}
.footer-actions .btn-ghost:hover{background:var(--ink-800);border-color:var(--accent);color:var(--accent)}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:rgba(247,246,241,.5);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{
  font-size:14.5px;
  color:rgba(247,246,241,.78);
  transition:color .18s var(--ease);
}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:13.5px;line-height:1.8;color:rgba(247,246,241,.55)}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:22px 0 26px;
}
.footer-bottom p{font-size:13px;color:rgba(247,246,241,.45)}
.footer-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-links a{font-size:13px;color:rgba(247,246,241,.55);transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--accent)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-menu{display:block}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .hero-media{order:-1}
  .hero-media .frame{aspect-ratio:16/9}
  .hero-media .float-card{left:auto;right:12px;bottom:-16px}
  .split{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .side-card + .side-card,.side-dark{margin-top:16px}
  .cta-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .faq-head{grid-template-columns:minmax(0,1fr);align-items:start}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip .stat:nth-child(2n){border-right:0;padding-right:0}
  .stat-strip .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .stat-strip .stat:nth-child(odd){padding-left:0}
  .stat-strip .stat:nth-child(even){padding-left:24px}
  .faq-grid{grid-template-columns:minmax(0,1fr);border-top:1px solid var(--line)}
}
@media (max-width:768px){
  body{font-size:16px}
  .header-inner{min-height:66px;gap:12px}
  .brand-mark{width:34px;height:34px;font-size:13px;border-radius:9px}
  .brand-text strong{font-size:18px}
  .brand-text em{font-size:11.5px}
  .nav-cta{display:none}
  .hero h1{letter-spacing:-.01em}
  .hero-points span{font-size:13px;padding-right:12px;margin-right:12px}
  .hero-media .float-card{position:static;margin-top:14px;max-width:none}
  .btn{min-height:48px}
  .cta-field{flex-direction:column}
  .cta-field .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero h1{font-size:32px}
  .hero h1 .hl{white-space:normal}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .stat-strip .stat{padding-left:0!important;border-right:0;padding-right:0}
  .stat-strip .stat+.stat{border-top:1px solid var(--line)}
  .side-card,.side-dark{padding:20px 18px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{transform:none;transition:opacity .3s linear}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: category3 */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --dur-1:160ms;
  --dur-2:240ms;
  --dur-3:400ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:clamp(20px,4vw,56px);
  --section:clamp(64px,9vw,128px);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent);color:var(--ink-900);}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 26px;
  border-radius:10px;
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background var(--dur-2) var(--ease),color var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease),transform var(--dur-1) var(--ease);
}
.btn .arw{transition:transform var(--dur-2) var(--ease);display:inline-block;}
.btn:hover .arw{transform:translateX(3px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:var(--ink-900);border-color:var(--accent);}
.btn-primary:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-dark{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-dark:hover{background:var(--accent);color:var(--ink-900);border-color:var(--accent);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  padding-bottom:2px;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;
  background-size:0 2px;
  background-position:left bottom;
  transition:background-size var(--dur-2) var(--ease);
}
.link-arrow:hover{background-size:100% 2px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,246,241,.86);
  border-bottom:1px solid transparent;
  transition:background var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.site-header.is-stuck{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
  transition:min-height var(--dur-2) var(--ease);
}
.site-header.is-stuck .header-inner{min-height:66px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  background:var(--ink-900);
  color:var(--accent);
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:800;
  letter-spacing:-.04em;
  transform:skewX(-6deg);
}
.brand-text{display:flex;align-items:baseline;gap:4px;line-height:1;}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-size:13px;font-style:normal;font-weight:500;color:var(--text-2);transform:translateY(1px);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 12px;
  font-size:15.5px;
  font-weight:500;
  color:var(--text);
  border-radius:var(--r-sm);
  transition:color var(--dur-2) var(--ease),background var(--dur-2) var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:3px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur-2) var(--ease);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after{transform:scaleX(1);}
.nav-links a.is-active{font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-cta{margin-left:12px;}
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 14px;
  background:transparent;
  border:1.5px solid var(--text);
  border-radius:var(--r-sm);
  font-size:14px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  transition:background var(--dur-2) var(--ease),color var(--dur-2) var(--ease);
}
.nav-toggle:hover{background:var(--ink-900);color:var(--text-inv);}
.nav-toggle .bars{display:inline-flex;flex-direction:column;gap:3px;}
.nav-toggle .bars i{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--paper);
  padding:18px 0 26px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 4px;
  font-size:19px;
  font-weight:700;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a span.dash{color:var(--text-2);font-weight:400;}
.mobile-drawer a.is-active{color:var(--ink-900);}
.mobile-drawer .drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:10px;}

/* ---------- breadcrumb ---------- */
.crumbs{
  padding:22px 0 0;
  font-size:14px;
  color:var(--text-2);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--line);}
.crumbs a{color:var(--text-2);transition:color var(--dur-2) var(--ease);}
.crumbs a:hover{color:var(--text);}
.crumbs li[aria-current] span{color:var(--text-2);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:40px 0 clamp(56px,7vw,96px);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg,rgba(18,22,19,.05) 1px,transparent 1px),linear-gradient(rgba(18,22,19,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;
  pointer-events:none;
  mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 72%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--text-2);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--accent);
  border-radius:2px;
}
.hero h1{
  margin-top:18px;
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.1;
  font-weight:800;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:20px;
  max-width:46ch;
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:14px 26px;
  margin-top:34px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
}
.hero-points li{display:inline-flex;align-items:center;gap:9px;}
.hero-points li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-2);}
.hero-figure{position:relative;}
.hero-figure .frame{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--paper-2);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/11;
}
.hero-figure .frame img{width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-badge{
  position:absolute;
  left:-14px;
  bottom:-14px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-md);
  border:1px solid var(--line-dark);
  box-shadow:var(--shadow-2);
}
.hero-badge img{width:44px;height:44px;border-radius:var(--r-sm);object-fit:cover;}
.hero-badge b{display:block;font-size:14px;font-weight:700;letter-spacing:.02em;}
.hero-badge span{display:block;font-size:12px;color:rgba(247,246,241,.66);}

/* ---------- ticket strip ---------- */
.strip{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--paper-2);
  overflow:hidden;
}
.strip-track{
  display:flex;
  align-items:center;
  gap:40px;
  min-height:52px;
  width:max-content;
  padding-left:var(--gutter);
  animation:slide 40s linear infinite;
}
.strip:hover .strip-track{animation-play-state:paused;}
.strip-item{
  display:inline-flex;
  align-items:center;
  gap:40px;
  font-size:13px;
  letter-spacing:.1em;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
}
.strip-item::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);}
@keyframes slide{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}

/* ---------- generic section ---------- */
.section{padding:var(--section) 0;}
.section-head{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(20px,4vw,56px);
  align-items:end;
  margin-bottom:clamp(30px,4vw,52px);
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head .head-note{
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}
.section-head.inline{
  grid-template-columns:9fr 3fr;
  align-items:center;
}
.section-head.inline .head-note{text-align:right;}

/* ---------- steps rail ---------- */
.steps-rail{
  position:relative;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:12px;
  padding:26px 0 8px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.steps-rail::before{
  content:"";
  position:absolute;
  left:0;right:0;top:53px;
  height:1px;
  background:var(--line);
}
.step-node{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  padding:0 6px 18px;
}
.step-node .dot{
  position:relative;
  z-index:1;
  width:34px;height:34px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--paper);
  border:1px solid var(--line);
  font-size:13px;
  font-weight:700;
  color:var(--text-2);
  transition:background var(--dur-2) var(--ease),color var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease);
}
.step-node.is-current .dot{background:var(--accent);border-color:var(--accent);color:var(--ink-900);}
.step-node b{font-size:15px;font-weight:700;}
.step-node span{font-size:12.5px;color:var(--text-2);line-height:1.6;}

/* ---------- step cards ---------- */
.step-cards{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:clamp(16px,2vw,24px);
  margin-top:clamp(32px,4vw,48px);
}
.step-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:clamp(22px,2.6vw,30px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:border-color var(--dur-2) var(--ease),transform var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.step-card:hover{border-color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.step-card.col-7{grid-column:span 7;}
.step-card.col-5{grid-column:span 5;}
.step-card.col-12{grid-column:span 12;}
.step-card .num{
  font-size:38px;
  font-weight:800;
  line-height:1;
  letter-spacing:-.04em;
  color:transparent;
  -webkit-text-stroke:1px rgba(18,22,19,.32);
}
.step-card h3{font-size:20px;font-weight:700;line-height:1.4;}
.step-card p{font-size:15px;line-height:1.9;color:var(--text-2);}
.step-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 10px;
  border-radius:6px;
  background:var(--paper-2);
  color:var(--text);
  font-size:12px;
  letter-spacing:.08em;
  font-weight:600;
}
.tag.accent{background:transparent;border:1px solid var(--accent-2);color:var(--accent-2);}
.step-card.wide{flex-direction:row;align-items:flex-start;gap:28px;}
.step-card.wide .num{flex-shrink:0;}
.step-card.wide .wide-body{display:flex;flex-direction:column;gap:12px;}

/* ---------- table ---------- */
.table-wrap{
  margin-top:clamp(36px,4vw,56px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:#fff;
}
.table-scroll{overflow-x:auto;}
table.compare{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:15px;
}
table.compare th,
table.compare td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.7;
}
table.compare thead th{
  background:var(--paper-2);
  font-size:13px;
  letter-spacing:.1em;
  font-weight:700;
  color:var(--text-2);
  text-transform:uppercase;
}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover{background:rgba(205,255,79,.12);}
table.compare td strong{font-weight:700;}
.table-note{
  padding:14px 20px;
  font-size:13px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  background:var(--paper-2);
}

/* ---------- checks list ---------- */
.check-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.check-aside{
  position:sticky;
  top:98px;
  padding:clamp(24px,3vw,34px);
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-lg);
  border:1px solid var(--line-dark);
}
.check-aside h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700;}
.check-aside p{margin-top:14px;font-size:14.5px;line-height:1.9;color:rgba(247,246,241,.72);}
.check-aside .aside-cta{margin-top:24px;}
.check-list{display:flex;flex-direction:column;}
.check-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.check-item:first-child{padding-top:0;}
.check-item .idx{
  font-size:26px;
  font-weight:800;
  letter-spacing:-.04em;
  color:var(--ink-900);
}
.check-item .idx::after{
  content:"";
  display:block;
  width:24px;height:3px;
  margin-top:10px;
  background:var(--accent);
  border-radius:2px;
}
.check-item h3{font-size:18px;font-weight:700;line-height:1.5;}
.check-item p{margin-top:8px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-block{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 clamp(28px,4vw,56px);
  margin-top:clamp(28px,3vw,44px);
}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:6px 0;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 2px;
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  transition:color var(--dur-2) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ink-800);}
.faq-item summary .pm{
  flex-shrink:0;
  width:26px;height:26px;
  position:relative;
  border-radius:50%;
  border:1px solid var(--line);
  transition:transform var(--dur-2) var(--ease),background var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease);
}
.faq-item summary .pm::before,
.faq-item summary .pm::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:opacity var(--dur-2) var(--ease),background var(--dur-2) var(--ease);
}
.faq-item summary .pm::before{width:10px;height:1.5px;}
.faq-item summary .pm::after{width:1.5px;height:10px;}
.faq-item[open] summary .pm{background:var(--accent);border-color:var(--accent);transform:rotate(180deg);}
.faq-item[open] summary .pm::after{opacity:0;}
.faq-item .answer{
  padding:0 34px 20px 2px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- related ---------- */
.related-list{
  display:flex;
  flex-direction:column;
  border-top:1px solid var(--line);
  margin-top:clamp(26px,3vw,40px);
}
.related-row{
  display:grid;
  grid-template-columns:88px 1fr auto;
  gap:clamp(16px,3vw,36px);
  align-items:center;
  padding:24px 4px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur-2) var(--ease),padding-left var(--dur-2) var(--ease);
}
.related-row:hover{background:#fff;padding-left:14px;}
.related-row .rn{
  font-size:26px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:1px rgba(18,22,19,.28);
  letter-spacing:-.04em;
}
.related-row h3{font-size:19px;font-weight:700;line-height:1.5;}
.related-row p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75;}
.related-row .go{
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:color var(--dur-2) var(--ease);
}
.related-row:hover .go{color:var(--ink-900);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(52px,7vw,96px) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(28px,4vw,60px);
  align-items:center;
}
.cta-grid h2{
  font-size:clamp(24px,3.2vw,38px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
}
.cta-grid h2 em{font-style:normal;color:var(--accent);}
.cta-grid p{margin-top:16px;font-size:15.5px;line-height:1.9;color:rgba(247,246,241,.72);max-width:44ch;}
.cta-form{display:flex;flex-direction:column;gap:14px;}
.cta-form label{font-size:13px;font-weight:500;color:rgba(247,246,241,.66);}
.cta-form .field-row{display:flex;gap:12px;}
.cta-form input[type="email"]{
  flex:1;
  min-height:50px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  background:var(--ink-800);
  color:var(--text-inv);
  font-size:15px;
  font-family:inherit;
  transition:border-color var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.cta-form input[type="email"]::placeholder{color:rgba(247,246,241,.4);}
.cta-form input[type="email"]:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(205,255,79,.35);
}
.form-tip{font-size:13px;color:rgba(247,246,241,.55);line-height:1.7;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.btn-on-dark{background:transparent;color:var(--text-inv);border-color:rgba(247,246,241,.35);}
.btn-on-dark:hover{background:var(--accent);color:var(--ink-900);border-color:var(--accent);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  border-top:1px solid var(--line-dark);
  padding:clamp(44px,6vw,72px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(32px,5vw,56px);
}
.footer-brand .brand-text strong{color:var(--text-inv);}
.footer-brand .brand-text em{color:rgba(247,246,241,.6);}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink-900);}
.footer-desc{
  margin-top:18px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(247,246,241,.66);
  max-width:30ch;
}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.footer-col h3{
  font-size:12.5px;
  letter-spacing:.14em;
  font-weight:700;
  color:rgba(247,246,241,.55);
  text-transform:uppercase;
  margin-bottom:16px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(247,246,241,.66);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:14.5px;
  color:rgba(247,246,241,.82);
  transition:color var(--dur-2) var(--ease);
}
.footer-col ul a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:14px 24px;
  align-items:center;
  justify-content:space-between;
  padding:22px 0;
  border-top:1px solid var(--line-dark);
  font-size:13px;
  color:rgba(247,246,241,.55);
}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-links a{color:rgba(247,246,241,.62);transition:color var(--dur-2) var(--ease);}
.footer-links a:hover{color:var(--accent);}
.site-footer .btn-ghost{color:var(--text-inv);border-color:rgba(247,246,241,.35);}
.site-footer .btn-ghost:hover{background:var(--accent);color:var(--ink-900);border-color:var(--accent);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity var(--dur-3) var(--ease),transform var(--dur-3) var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .nav-links a{font-size:14.5px;padding:0 10px;}
  .nav-links a::after{left:10px;right:10px;}
}
@media (max-width:1023px){
  .nav-links,.header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;}
  .hero-figure .frame{aspect-ratio:16/10;}
  .section-head,
  .section-head.inline{grid-template-columns:1fr;align-items:start;}
  .section-head.inline .head-note{text-align:left;}
  .step-cards{grid-template-columns:repeat(6,1fr);}
  .step-card.col-7,.step-card.col-5{grid-column:span 6;}
  .step-card.col-12{grid-column:span 6;}
  .step-card.wide{flex-direction:column;}
  .check-grid{grid-template-columns:1fr;}
  .check-aside{position:static;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .hero{padding-top:28px;}
  .hero h1{font-size:clamp(30px,8vw,42px);}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-badge{left:0;bottom:-12px;padding:10px 12px;}
  .hero-badge img{width:38px;height:38px;}
  .steps-rail{
    grid-template-columns:repeat(2,1fr);
    gap:6px;
  }
  .steps-rail::before{display:none;}
  .step-node{padding-bottom:12px;}
  .related-row{grid-template-columns:1fr;gap:10px;}
  .related-row .rn{font-size:20px;}
  .cta-form .field-row{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .table-scroll{padding-bottom:4px;}
}
@media (max-width:519px){
  .hero::before{display:none;}
  .check-item{grid-template-columns:1fr;gap:8px;}
  .check-item .idx{font-size:20px;}
  .step-card .num{font-size:30px;}
  .strip-item{font-size:12px;gap:24px;}
  .strip-track{gap:24px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --danger:#C4482C;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Semi Condensed","Oswald","Helvetica Neue",Arial,var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 clamp(20px,4vw,56px);
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,246,241,.94);
  -webkit-backdrop-filter:saturate(150%) blur(8px);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -26px rgba(10,15,12,.8);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,28px);
  min-height:76px;
  padding-top:10px;
  padding-bottom:10px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  background:var(--accent);
  color:var(--ink-900);
  border-radius:10px;
  font-family:var(--font-num);
  font-weight:800;
  font-size:19px;
  letter-spacing:-.02em;
  transition:transform .24s var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-2px) rotate(-4deg);}
.brand-text{display:inline-flex;align-items:baseline;gap:4px;line-height:1;}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:14px;font-weight:500;color:var(--text-2);}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:var(--r-sm);
  transition:background .16s var(--ease),color .16s var(--ease);
}
.nav-links a:hover{background:var(--paper-2);}
.nav-links a.is-active{font-weight:700;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:4px;
  height:3px;
  background:var(--accent);
  border-radius:2px;
}
.nav-cta{flex:0 0 auto;margin-left:8px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .16s var(--ease),box-shadow .2s var(--ease);
}
.btn .arw{display:inline-block;transition:transform .24s var(--ease);font-size:15px;}
.btn:hover .arw{transform:translateX(3px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:var(--ink-900);}
.btn-primary:hover{background:var(--ink-900);color:var(--text-inv);box-shadow:0 0 0 1.5px var(--accent) inset;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover{background:var(--text);color:var(--paper);}
.btn-ghost-inv{background:transparent;color:var(--text-inv);border-color:rgba(247,246,241,.45);}
.btn-ghost-inv:hover{background:var(--text-inv);color:var(--ink-900);border-color:var(--text-inv);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
.btn:disabled{opacity:.4;cursor:not-allowed;}

.nav-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--paper);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .24s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  left:0;right:0;top:0;
  height:88vh;
  background:var(--paper);
  z-index:90;
  padding:104px clamp(20px,6vw,40px) 40px;
  overflow-y:auto;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.mobile-drawer[hidden]{display:none;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;}
.mobile-drawer .drawer-links a{
  display:block;
  padding:16px 2px;
  font-size:22px;
  font-weight:700;
  border-bottom:1px solid var(--line);
  opacity:0;
  transform:translateY(-8px);
  animation:drawerIn .32s var(--ease) forwards;
}
.mobile-drawer .drawer-links a.is-active{color:var(--ink-900);}
.mobile-drawer .drawer-links a.is-active::before{
  content:"";
  display:inline-block;
  width:8px;height:8px;
  margin-right:10px;
  background:var(--accent);
  border-radius:2px;
  vertical-align:middle;
}
@keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
.drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot p{font-size:14px;color:var(--text-2);}
.drawer-close{
  position:absolute;
  top:18px;right:18px;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--text);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .cur{color:var(--text-2);}
.hero-dark .breadcrumb,.hero-dark .breadcrumb a,.hero-dark .breadcrumb .cur{color:rgba(247,246,241,.68);}
.hero-dark .breadcrumb a:hover{color:var(--accent);}

/* ---------- Hero ---------- */
.hero-dark{
  position:relative;
  background:var(--ink-900);
  color:var(--text-inv);
  overflow:hidden;
  padding:clamp(40px,6vw,76px) 0 clamp(56px,8vw,104px);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  opacity:.16;
  filter:grayscale(.35);
}
.hero-veil{position:absolute;inset:0;background:rgba(14,21,18,.55);}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(32px,5vw,64px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(247,246,241,.72);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--accent);
  border-radius:2px;
}
.hero-dark h1{
  font-size:clamp(30px,4.4vw,48px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-sub{
  font-size:clamp(15px,1.4vw,17px);
  color:rgba(247,246,241,.74);
  max-width:52ch;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  font-size:14px;
  color:rgba(247,246,241,.66);
}
.hero-points li{display:flex;align-items:center;}
.hero-points li+li::before{
  content:"";
  display:inline-block;
  width:1px;height:14px;
  background:rgba(247,246,241,.28);
  margin:0 14px;
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  object-position:center;
  border-radius:var(--r-lg);
  border:1px solid var(--line-dark);
}
.hero-badge{
  position:absolute;
  right:-14px;bottom:-14px;
  width:76px;height:76px;
  border-radius:12px;
  object-fit:cover;
  border:3px solid var(--ink-900);
  box-shadow:var(--shadow-2);
}

/* ---------- Section basics ---------- */
.section{padding:clamp(64px,9vw,112px) 0;}
.section-tight{padding:clamp(48px,7vw,88px) 0;}
.section-dark{background:var(--ink-900);color:var(--text-inv);}
.section-head{margin-bottom:clamp(28px,4vw,44px);}
.section-head.split{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(24px,4vw,56px);
  align-items:end;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--text-2);
  margin-bottom:14px;
}
.kicker::before{content:"";width:6px;height:6px;background:var(--accent-2);border-radius:50%;}
.section-dark .kicker{color:rgba(247,246,241,.6);}
h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.24;
  letter-spacing:-.015em;
}
.section-desc{
  font-size:15px;
  color:var(--text-2);
  max-width:46ch;
}
.section-dark .section-desc{color:rgba(247,246,241,.66);}

/* ---------- Compare ---------- */
.compare-wrap{
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-lg);
  padding:clamp(22px,4vw,44px);
  border:1px solid var(--line-dark);
}
.compare-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  padding-bottom:16px;
  border-bottom:1px solid var(--line-dark);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(247,246,241,.6);
}
.compare-head .c-right{padding-left:26px;border-left:1px solid var(--line-dark);}
.compare-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  padding:22px 0;
  border-bottom:1px solid var(--line-dark);
}
.compare-row:last-child{border-bottom:0;padding-bottom:4px;}
.cell{display:flex;gap:14px;align-items:flex-start;}
.cell.c-right{padding-left:26px;border-left:1px solid var(--line-dark);}
.mark{
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  font-weight:700;
  margin-top:2px;
}
.cell.good .mark{background:rgba(205,255,79,.16);color:var(--accent);}
.cell.bad .mark{background:rgba(228,87,46,.16);color:#FF9A7B;}
.cell h3{font-size:16px;font-weight:600;margin-bottom:4px;line-height:1.5;}
.cell p{font-size:14px;line-height:1.72;color:rgba(247,246,241,.62);}
.compare-note{
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  font-size:13.5px;
  color:rgba(247,246,241,.6);
}
.compare-note a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-weight:600;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.compare-note a:hover{border-bottom-color:var(--accent);}

/* ---------- Point list ---------- */
.point-list{border-top:1px solid var(--line-dark);}
.point-item{
  display:grid;
  grid-template-columns:92px 1fr auto;
  gap:clamp(16px,3vw,40px);
  align-items:center;
  padding:clamp(22px,3vw,34px) 0;
  border-bottom:1px solid var(--line-dark);
  transition:background .2s var(--ease);
}
.point-item:hover{background:rgba(247,246,241,.03);}
.point-num{
  font-family:var(--font-num);
  font-size:clamp(34px,4.4vw,50px);
  font-weight:800;
  line-height:1;
  letter-spacing:-.03em;
  color:var(--accent);
}
.point-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:6px;}
.point-body p{font-size:15px;line-height:1.78;color:rgba(247,246,241,.66);max-width:62ch;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  white-space:nowrap;
  padding:10px 0;
}
.text-link .arw{transition:transform .24s var(--ease);}
.text-link:hover .arw{transform:translateX(3px);}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(16px,2.4vw,26px);
}
.step{
  position:relative;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.step::before{
  content:"";
  position:absolute;
  top:-5px;left:0;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--line);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.step:first-child::before{background:var(--accent);box-shadow:0 0 0 4px rgba(205,255,79,.28);}
.step:hover::before{background:var(--accent);}
.step-num{
  display:block;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--accent-2);
  margin-bottom:10px;
}
.step h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.75;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 clamp(32px,5vw,56px);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  list-style:none;
  transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ink-700);}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  position:relative;
  transition:transform .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:background .24s var(--ease);
}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--accent);border-color:var(--accent);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-answer{
  padding:0 0 24px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:56ch;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-lg);
  padding:clamp(28px,5vw,56px);
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(24px,4vw,48px);
  align-items:center;
  border:1px solid var(--line-dark);
}
.cta-band h2{color:var(--text-inv);margin-bottom:12px;}
.cta-band p{font-size:15px;color:rgba(247,246,241,.66);max-width:44ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-actions .btn{min-height:50px;}

/* ---------- Related ---------- */
.related-list{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.related-item{
  display:grid;
  grid-template-columns:180px 1fr auto;
  gap:clamp(16px,2.6vw,32px);
  align-items:center;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.related-item:hover{background:rgba(18,22,19,.025);}
.related-item img{
  width:180px;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  transition:transform .24s var(--ease);
}
.related-item:hover img{transform:translateY(-2px);}
.related-badge{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--accent-2);
  border:1px solid rgba(228,87,46,.35);
  border-radius:6px;
  padding:2px 8px;
  margin-bottom:8px;
}
.related-item h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:6px;}
.related-item p{font-size:14px;color:var(--text-2);line-height:1.7;max-width:56ch;}
.related-arrow{
  font-size:20px;
  color:var(--text-2);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.related-item:hover .related-arrow{transform:translateX(4px);color:var(--text);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,7vw,80px) 0 0;
  margin-top:clamp(48px,7vw,88px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(32px,5vw,56px);
}
.site-footer .brand-text strong{color:var(--text-inv);}
.site-footer .brand-text em{color:rgba(247,246,241,.55);}
.footer-desc{
  margin:18px 0 22px;
  font-size:14px;
  line-height:1.75;
  color:rgba(247,246,241,.62);
  max-width:30ch;
}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(247,246,241,.55);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14.5px;
  color:rgba(247,246,241,.82);
  transition:color .16s var(--ease);
}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:14px;line-height:1.75;color:rgba(247,246,241,.6);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:22px 0 30px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13.5px;
  color:rgba(247,246,241,.55);
}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-links a{color:rgba(247,246,241,.72);transition:color .16s var(--ease);}
.footer-links a:hover{color:var(--accent);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .nav-links a{padding:10px 10px;font-size:14.5px;}
  .nav-links a.is-active::after{left:10px;right:10px;}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{order:-1;max-width:560px;}
  .hero-badge{width:64px;height:64px;right:-8px;bottom:-8px;}
  .section-head.split{grid-template-columns:1fr;align-items:start;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;padding:0;border-bottom:0;}
  .cell{padding:18px 0;border-left:0;}
  .cell.c-right{padding-left:0;border-left:0;border-top:1px solid var(--line-dark);}
  .point-item{grid-template-columns:60px 1fr;row-gap:10px;}
  .point-item .text-link{grid-column:2;}
  .point-num{font-size:32px;}
  .steps{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;}
  .related-item{grid-template-columns:110px 1fr;row-gap:10px;}
  .related-item img{width:110px;}
  .related-arrow{display:none;}
  .section{padding:clamp(52px,9vw,72px) 0;}
  .hero-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:519px){
  .hero-badge{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .related-item{grid-template-columns:1fr;}
  .related-item img{width:100%;}
  .compare-wrap{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category5 */
:root{
  --ink-900:#0E1512;
  --ink-800:#18201C;
  --ink-700:#232D27;
  --paper:#F7F6F1;
  --paper-2:#EDECE3;
  --text:#121613;
  --text-2:#5A625C;
  --text-inv:#F7F6F1;
  --accent:#CDFF4F;
  --accent-2:#E4572E;
  --line:#DDDCD2;
  --line-dark:#2A342E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 1px 2px rgba(10,15,12,.06);
  --shadow-2:0 18px 40px -24px rgba(10,15,12,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:clamp(20px,4vw,56px);
  padding-right:clamp(20px,4vw,56px);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .16s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn .arw{display:inline-block;transition:transform .24s var(--ease);font-size:15px;line-height:1;}
.btn:hover .arw{transform:translateX(2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:var(--ink-900);}
.btn-primary:hover{background:var(--ink-900);color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset;}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(18,22,19,.55);}
.btn-ghost:hover{background:var(--ink-900);color:var(--text-inv);border-color:var(--ink-900);}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;border-radius:var(--r-sm);}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text);}
.btn-link .arw{transition:transform .24s var(--ease);}
.btn-link:hover .arw{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(247,246,241,.86);
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -18px rgba(10,15,12,.6);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
  transition:min-height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  background:var(--ink-900);
  color:var(--accent);
  font-size:16px;
  font-weight:800;
  letter-spacing:.02em;
  border-radius:10px;
  transform:skewX(-8deg);
}
.brand-mark > *{transform:skewX(8deg);}
.brand-text{display:flex;align-items:flex-end;gap:6px;line-height:1;}
.brand-text strong{font-size:20px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:14px;font-weight:500;color:var(--text-2);transform:translateY(2px);}

.nav-links{display:flex;align-items:center;gap:26px;flex-wrap:nowrap;}
.nav-links a{
  position:relative;
  padding:12px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:3px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{font-weight:700;}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--paper);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  transition:border-color .24s var(--ease),background-color .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink-700);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:min(420px,100%);
  height:100%;
  background:var(--ink-900);
  color:var(--text-inv);
  padding:96px 28px 40px;
  transform:translateX(102%);
  transition:transform .4s var(--ease);
  z-index:110;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-label{
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(247,246,241,.5);
  margin-bottom:8px;
}
.mobile-drawer a.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 0;
  font-size:20px;
  font-weight:700;
  color:var(--text-inv);
  border-bottom:1px solid var(--line-dark);
  transition:color .24s var(--ease);
}
.mobile-drawer a.drawer-link:hover{color:var(--accent);}
.mobile-drawer a.drawer-link .arw{font-size:16px;font-weight:500;opacity:.6;}
.mobile-drawer .drawer-cta{margin-top:24px;}
.mobile-drawer .drawer-note{
  margin-top:16px;
  font-size:13px;
  line-height:1.7;
  color:rgba(247,246,241,.55);
}
body.drawer-open{overflow:hidden;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  padding-top:22px;
  font-size:14px;
  color:var(--text-2);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:var(--line);}
.breadcrumb a{transition:color .24s var(--ease);}
.breadcrumb a:hover{color:var(--text);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:clamp(28px,4vw,52px) 0 clamp(48px,6vw,84px);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right,rgba(14,21,18,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(14,21,18,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 20% 10%,#000 0%,transparent 78%);
  mask-image:radial-gradient(ellipse at 20% 10%,#000 0%,transparent 78%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:clamp(28px,4vw,64px);
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--text-2);
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--accent);
  display:block;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-sub{
  font-size:clamp(16px,1.4vw,18px);
  color:var(--text-2);
  max-width:34em;
  margin-bottom:28px;
}
.search-form{
  display:flex;
  gap:10px;
  max-width:560px;
  margin-bottom:14px;
}
.search-field{
  position:relative;
  flex:1;
  min-width:0;
}
.search-field input{
  width:100%;
  height:52px;
  padding:0 16px 0 46px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--text);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.search-field input::placeholder{color:#9AA098;}
.search-field input:focus{
  outline:none;
  border-color:var(--text);
  box-shadow:0 0 0 3px rgba(205,255,79,.7);
}
.search-field .search-ico{
  position:absolute;
  left:16px;top:50%;
  transform:translateY(-50%);
  width:16px;height:16px;
  border:2px solid var(--text-2);
  border-radius:50%;
  pointer-events:none;
}
.search-field .search-ico::after{
  content:"";
  position:absolute;
  right:-5px;bottom:-3px;
  width:7px;height:2px;
  background:var(--text-2);
  transform:rotate(45deg);
  border-radius:2px;
}
.search-form .btn{flex-shrink:0;}
.hero-hint{
  font-size:13px;
  color:var(--text-2);
  display:flex;
  flex-wrap:wrap;
  gap:8px 16px;
  align-items:center;
}
.hero-hint b{color:var(--text);font-weight:600;}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/11;
  background:var(--paper-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px;
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(247,246,241,.85);
  background:linear-gradient(to top,rgba(14,21,18,.78),rgba(14,21,18,0));
}

/* ---------- generic section ---------- */
.section{padding:clamp(56px,7.5vw,104px) 0;}
.section-tight{padding:clamp(40px,5vw,72px) 0;}
.section-alt{background:var(--paper-2);}
.section-head{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(20px,4vw,56px);
  align-items:end;
  margin-bottom:clamp(28px,3.4vw,48px);
}
.section-title{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.015em;
}
.section-desc{
  font-size:15px;
  color:var(--text-2);
  margin:0;
  max-width:38em;
}
.section-kicker{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--accent-2);
  margin-bottom:12px;
  text-transform:uppercase;
}

/* ---------- quick entries (2 x 3) ---------- */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.quick-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:clamp(22px,2.4vw,30px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.quick-card:hover{
  border-color:var(--ink-700);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.quick-card .ico{
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:rgba(205,255,79,.28);
  color:var(--ink-900);
  font-size:15px;
  font-weight:800;
  letter-spacing:.06em;
}
.quick-card h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
}
.quick-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin:0;
}
.quick-more{
  margin-top:auto;
  padding-top:6px;
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.quick-more .arw{transition:transform .24s var(--ease);}
.quick-card:hover .quick-more .arw{transform:translateX(3px);}

/* ---------- scene list ---------- */
.scene-list{border-top:1px solid var(--line);}
.scene-item{
  display:grid;
  grid-template-columns:72px 1fr auto;
  gap:clamp(16px,3vw,40px);
  align-items:center;
  padding:clamp(22px,2.6vw,32px) 0;
  border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease);
}
.scene-item:hover{background:rgba(237,236,227,.55);}
.scene-no{
  font-size:clamp(28px,3vw,38px);
  font-weight:800;
  letter-spacing:-.03em;
  color:rgba(18,22,19,.16);
  line-height:1;
}
.scene-body h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:6px;
}
.scene-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin:0;
}
.scene-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  padding:10px 0;
}
.scene-link .arw{transition:transform .24s var(--ease);}
.scene-link:hover .arw{transform:translateX(3px);}

/* ---------- notice strip ---------- */
.notice-strip{
  background:var(--ink-900);
  color:var(--text-inv);
  border-radius:var(--r-lg);
  padding:clamp(26px,3.6vw,44px);
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
}
.notice-strip h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.25;
}
.notice-strip h2 em{
  font-style:normal;
  color:var(--accent);
}
.notice-steps{
  display:grid;
  gap:0;
}
.notice-step{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--line-dark);
  align-items:start;
}
.notice-step:last-child{border-bottom:0;}
.notice-step .dot{
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--accent);
  color:var(--accent);
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  flex-shrink:0;
  margin-top:3px;
}
.notice-step p{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:rgba(247,246,241,.82);
}
.notice-step b{color:var(--text-inv);font-weight:600;}

/* ---------- faq ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-top:1px solid var(--line);
}
.faq-col{padding:0 clamp(24px,3vw,44px);}
.faq-col:first-child{padding-left:0;}
.faq-col:last-child{padding-right:0;border-left:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:22px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ink-700);}
.faq-icon{
  position:relative;
  width:22px;height:22px;
  flex-shrink:0;
  margin-top:3px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:14px;height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleX(0);opacity:0;}
.faq-answer{
  padding:0 0 24px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.faq-answer p{margin:0;}

/* ---------- related ---------- */
.rel-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(20px,3vw,32px);
  align-items:stretch;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{border-color:var(--ink-700);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.rel-media{
  aspect-ratio:16/9;
  background:var(--paper-2);
  overflow:hidden;
}
.rel-media img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:clamp(20px,2.4vw,28px);display:flex;flex-direction:column;gap:10px;}
.badge{
  align-self:flex-start;
  font-size:12px;
  letter-spacing:.12em;
  padding:4px 10px;
  border-radius:6px;
  border:1px solid rgba(228,87,46,.5);
  color:var(--accent-2);
  font-weight:600;
}
.rel-body h3{font-size:21px;font-weight:600;line-height:1.4;}
.rel-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0;}
.rel-side{
  display:grid;
  grid-template-rows:1fr 1fr;
  gap:clamp(16px,2vw,20px);
}
.rel-item{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:8px;
  padding:clamp(20px,2.4vw,26px);
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color .24s var(--ease),background-color .24s var(--ease),transform .24s var(--ease);
}
.rel-item:hover{border-color:var(--ink-700);background:#fff;transform:translateY(-2px);}
.rel-item .rel-tag{font-size:12px;letter-spacing:.12em;color:var(--text-2);font-weight:600;}
.rel-item h3{font-size:18px;font-weight:600;line-height:1.45;}
.rel-item p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0;}

/* ---------- contact cta ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,88px) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(28px,4vw,64px);
  align-items:center;
}
.cta-band h2{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.cta-band h2 em{font-style:normal;color:var(--accent);}
.cta-band p.lead{
  color:rgba(247,246,241,.72);
  font-size:16px;
  max-width:36em;
  margin-bottom:26px;
}
.cta-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  font-size:13px;
  color:rgba(247,246,241,.55);
  margin-top:18px;
}
.cta-meta span{display:inline-flex;align-items:center;gap:8px;}
.cta-meta span::before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%;}
.cta-card{
  background:var(--ink-800);
  border:1px solid var(--line-dark);
  border-radius:var(--r-lg);
  padding:clamp(22px,2.6vw,32px);
}
.cta-card figure{
  margin:0 0 20px;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--ink-700);
}
.cta-card figure img{width:100%;height:100%;object-fit:cover;}
.field{margin-bottom:14px;}
.field label{
  display:block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  color:rgba(247,246,241,.66);
  margin-bottom:8px;
}
.field input,
.field textarea{
  width:100%;
  min-height:50px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  background:var(--ink-900);
  color:var(--text-inv);
  font-size:15px;
  line-height:1.6;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,
.field textarea::placeholder{color:rgba(247,246,241,.35);}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(205,255,79,.25);
}
.cta-card .btn{width:100%;margin-top:6px;}
.form-note{
  margin:12px 0 0;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(247,246,241,.45);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:clamp(48px,6vw,80px) 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:clamp(28px,4vw,56px);
  padding-bottom:clamp(32px,4vw,48px);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--accent);color:var(--ink-900);}
.footer-brand .brand-text strong{color:var(--text-inv);}
.footer-brand .brand-text em{color:rgba(247,246,241,.55);}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(247,246,241,.62);
  max-width:24em;
  margin-bottom:20px;
}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;}
.site-footer .btn-ghost{color:var(--text-inv);border-color:rgba(247,246,241,.3);}
.site-footer .btn-ghost:hover{background:var(--text-inv);color:var(--ink-900);border-color:var(--text-inv);}
.footer-col h3{
  font-size:13px;
  letter-spacing:.14em;
  font-weight:600;
  color:rgba(247,246,241,.55);
  margin-bottom:16px;
  text-transform:uppercase;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:14px;
  color:rgba(247,246,241,.82);
  transition:color .24s var(--ease);
}
.footer-col ul li a:hover{color:var(--accent);}
.footer-col p{
  font-size:13.5px;
  line-height:1.8;
  color:rgba(247,246,241,.55);
  margin:0;
}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
}
.footer-bottom p{
  margin:0;
  font-size:13px;
  color:rgba(247,246,241,.5);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{
  font-size:13px;
  color:rgba(247,246,241,.62);
  transition:color .24s var(--ease);
}
.footer-links a:hover{color:var(--accent);}

/* ---------- reveal ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.js [data-reveal].in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-links{gap:18px;}
  .nav-links a{font-size:14px;}
  .hero-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .header-cta{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{aspect-ratio:16/9;max-width:640px;}
  .section-head{grid-template-columns:1fr;align-items:start;gap:14px;}
  .notice-strip{grid-template-columns:1fr;gap:24px;}
  .cta-grid{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .rel-side{grid-template-rows:auto auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:767px){
  body{font-size:15.5px;}
  .breadcrumb{font-size:13px;padding-top:16px;}
  .quick-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .faq-col{padding:0;}
  .faq-col:last-child{border-left:0;}
  .scene-item{
    grid-template-columns:1fr;
    gap:12px;
    align-items:start;
  }
  .scene-no{font-size:26px;}
  .scene-link{padding-top:0;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
  .cta-band{padding:44px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:520px){
  .brand-text em{display:none;}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .section-title{font-size:23px;}
  .quick-card h3{font-size:18px;}
  .mobile-drawer{padding-top:88px;}
  .mobile-drawer a.drawer-link{font-size:18px;padding:14px 0;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .js [data-reveal]{opacity:1;transform:none;}
}