/* roulang page: index */
:root{
  --ink:#101114;
  --ink-2:#1C1E23;
  --accent:#C6F24E;
  --accent-deep:#9FD21F;
  --paper:#F5F4F0;
  --card:#FFFFFF;
  --line:#E3E1DA;
  --muted:#6E7278;
  --body:#3A3D42;
  --warm:#E8562A;
  --radius-card:20px;
  --radius-btn:12px;
  --shadow-soft:0 1px 2px rgba(16,17,20,.04);
  --shadow-hover:0 18px 40px -20px rgba(16,17,20,.18);
  --container:1240px;
  --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px}
.section{padding:112px 0}
.section-tight{padding:80px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--muted);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  padding:18px 0 0;
  background:linear-gradient(180deg,rgba(245,244,240,.96),rgba(245,244,240,.82));
  backdrop-filter:blur(10px);
}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-soft);padding:12px 16px;
  transition:box-shadow .3s ease,padding .3s ease,border-color .3s ease;
}
.site-head.is-scrolled .nav-shell{box-shadow:var(--shadow-hover);padding:9px 14px;border-color:#D8D5CC}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.01em;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:14px;font-weight:700;
  transition:transform .3s ease;
}
.brand:hover .brand-mark{transform:rotate(-6deg)}
.nav-pills{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.nav-pill{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;border:1px solid var(--line);border-radius:10px;
  font-size:13px;font-weight:600;color:var(--body);background:#fff;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-pill svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.nav-pill:hover{background:#F7F6F2;border-color:#D6D3C9;transform:translateY(-1px);color:var(--ink)}
.nav-pill.is-active{border-color:var(--ink);color:var(--ink);background:#FCFCFA}
.nav-pill.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:3px;width:18px;height:2px;background:var(--accent);border-radius:2px;
}
.nav-cta{flex:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--ink);
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:#F7F6F2;border-color:#D6D3C9}
.nav-toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:700;font-size:14px;
  padding:12px 22px;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--accent);color:var(--ink)}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(16,17,20,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-pill{border-radius:999px}
.text-link{
  display:inline-block;font-size:14px;font-weight:700;color:var(--ink);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 2px;
  transition:background-size .28s ease;padding-bottom:3px;
}
.text-link:hover{background-size:100% 2px}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:rgba(232,86,42,.12);color:var(--warm);
  font-size:11px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge-quiet{background:rgba(16,17,20,.06);color:var(--muted)}

/* ---------- Hero ---------- */
.hero{padding:68px 0 96px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero-title{
  font-size:clamp(2.6rem,5.4vw,4.4rem);
  line-height:1.06;font-weight:900;color:var(--ink);letter-spacing:-.01em;
}
.hero-title .line-2{display:block;padding-left:1em}
.hero-sub{margin-top:24px;font-size:17px;line-height:1.8;color:var(--muted);max-width:540px}
.hero-actions{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}
.hero-media{
  position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-hover);aspect-ratio:4/5;background:#E9E7E0;
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.hero-media:hover img{transform:scale(1.02)}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(16,17,20,.08);pointer-events:none}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:16px;padding:14px 16px;
}
.hero-float strong{display:block;font-size:13px;color:var(--ink);font-weight:700;line-height:1.5}
.hero-float span{display:block;font-size:12px;color:var(--muted);line-height:1.5}
.hero-float .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}

/* ---------- 指标条 ---------- */
.metrics{
  margin-top:56px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.metric{padding:22px 10px 0;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric b{
  display:block;font-family:var(--font-mono);font-size:26px;line-height:1.2;
  color:var(--ink);font-weight:700;transition:color .25s ease;
}
.metric:hover b{color:var(--accent-deep)}
.metric span{display:block;margin-top:4px;font-size:12px;letter-spacing:.05em;color:var(--muted)}

/* ---------- 品牌主张 ---------- */
.claim{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.claim h2{font-size:clamp(1.8rem,3.2vw,2.75rem);line-height:1.15;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.claim-copy p{font-size:15px;line-height:1.9;color:var(--body);margin-bottom:16px;max-width:560px}
.claim-copy p:last-of-type{margin-bottom:24px}
.claim-rule{height:1px;background:var(--line);margin-bottom:20px}

/* ---------- 方法 ---------- */
.method-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:stretch;margin-top:8px}
.method-photo{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);min-height:380px;background:#E9E7E0}
.method-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.method-photo:hover img{transform:scale(1.03)}
.method-list{display:flex;flex-direction:column;justify-content:center}
.method-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.method-item:first-child{padding-top:0}
.method-item:last-child{border-bottom:none;padding-bottom:0}
.method-item .num{
  font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--ink);
  line-height:1.4;width:44px;flex:none;
}
.method-item h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px}
.method-item p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.8rem,3.2vw,2.75rem);line-height:1.15;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.sec-head p{margin-top:12px;font-size:15px;color:var(--muted);max-width:600px}

/* ---------- 精选内容 ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.feature-main{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink)}
.feature-main .thumb{overflow:hidden}
.feature-main img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease}
.feature-main:hover img{transform:scale(1.03)}
.feature-body{padding:24px 26px 28px}
.feature-body h3{margin:14px 0 10px;font-size:22px;line-height:1.4;font-weight:700;color:var(--ink)}
.feature-body p{
  font-size:15px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-meta{
  margin-top:18px;display:flex;align-items:center;gap:12px;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);
}
.feature-side{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-soft)}
.side-item{display:block;padding:22px 24px;border-bottom:1px solid var(--line);transition:background .25s ease}
.side-item:last-child{border-bottom:none}
.side-item:hover{background:#FBFAF7}
.side-item h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink);transition:color .2s ease}
.side-item:hover h3{color:var(--ink)}
.side-meta{
  margin-top:10px;display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);
}

/* ---------- 分类行 ---------- */
.cat-rows{border-top:1px solid var(--line)}
.cat-row{
  display:grid;grid-template-columns:64px 1fr 2fr 40px;gap:24px;align-items:center;
  padding:26px 12px;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease;
}
.cat-row:hover{background:#FBFAF7;padding-left:20px}
.cat-idx{font-family:var(--font-mono);font-size:13px;color:var(--muted)}
.cat-name{font-size:19px;font-weight:700;color:var(--ink)}
.cat-desc{font-size:14px;line-height:1.7;color:var(--muted)}
.cat-arrow{justify-self:end;font-size:18px;color:var(--ink);transition:transform .25s ease}
.cat-row:hover .cat-arrow{transform:translateX(4px)}

/* ---------- 深色区块 ---------- */
.trust-band{
  background:var(--ink);border-radius:28px;padding:56px;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  position:relative;overflow:hidden;
}
.trust-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.16),transparent 68%);
}
.trust-quote{position:relative;z-index:1;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.55;font-weight:700;color:#fff;letter-spacing:-.01em}
.trust-quote em{font-style:normal;color:var(--accent)}
.trust-list{position:relative;z-index:1}
.trust-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);
  font-size:14px;line-height:1.7;color:rgba(255,255,255,.76);
}
.trust-list li:last-child{border-bottom:none}
.trust-list .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;flex:none}
.trust-list strong{color:#fff;font-weight:700}

/* ---------- 最新信息列表 ---------- */
.cms-list{border-top:1px solid var(--line)}
.cms-row{
  display:grid;grid-template-columns:110px 1fr auto 28px;gap:24px;align-items:center;
  padding:24px 12px;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.cms-row:hover{background:#FBFAF7}
.cms-date{font-family:var(--font-mono);font-size:13px;color:var(--muted)}
.cms-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);transition:color .2s ease}
.cms-row:hover .cms-title{color:var(--ink)}
.cms-sum{
  margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-arrow{justify-self:end;font-size:18px;color:var(--ink);transition:transform .25s ease}
.cms-row:hover .cms-arrow{transform:translateX(4px)}
.cms-empty{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--card);
  padding:64px 24px;text-align:center;
}
.cms-empty svg{width:48px;height:48px;stroke:var(--muted);fill:none;stroke-width:1.5;margin:0 auto 16px}
.cms-empty p{font-size:14px;color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;background:none;border:none;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--ink)}
.faq-plus{flex:none;width:22px;height:22px;position:relative;transition:transform .24s ease}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:background .24s ease}
.faq-plus::before{left:0;top:10px;width:100%;height:2px}
.faq-plus::after{left:10px;top:0;width:2px;height:100%}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--body);max-width:760px}

/* ---------- CTA 深色通栏 ---------- */
.cta-wrap{padding:0 0 112px}
.cta-band{
  background:var(--ink);color:#fff;border-radius:28px;padding:56px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-60px;bottom:-100px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.14),transparent 70%);
}
.cta-band h2{position:relative;z-index:1;font-size:clamp(1.7rem,2.8vw,2.4rem);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.cta-band p{position:relative;z-index:1;margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:440px}
.sub-form{
  position:relative;z-index:1;display:flex;gap:8px;align-items:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.25);
  border-radius:14px;padding:6px;transition:border-color .25s ease;
}
.sub-form:focus-within{border-color:var(--accent)}
.sub-form input{
  flex:1;min-width:0;background:transparent;border:none;color:#fff;
  font-size:14px;font-family:inherit;padding:10px 14px;outline:none;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form .btn{flex:none}
.form-msg{position:relative;z-index:1;margin-top:12px;font-size:12px;color:var(--accent);min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px}
.foot-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:16px}
.foot-brand .brand-mark{background:var(--accent);color:var(--ink)}
.foot-desc{font-size:13px;line-height:1.9;color:rgba(255,255,255,.6);max-width:280px}
.foot-title{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.45);font-weight:600;margin-bottom:18px;
}
.foot-links li{margin-bottom:12px;font-size:14px;line-height:1.6}
.foot-links a{transition:color .2s ease}
.foot-links a:hover{color:var(--accent)}
.foot-contact li{margin-bottom:12px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);word-break:break-all}
.foot-contact strong{display:block;color:rgba(255,255,255,.9);font-size:13px;font-weight:600;margin-bottom:2px}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.42);
}
.foot-bottom a{transition:color .2s ease}
.foot-bottom a:hover{color:var(--accent)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:80;background:rgba(16,17,20,.5);backdrop-filter:blur(4px);display:none}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:16px;left:16px;right:16px;bottom:16px;
  background:var(--card);border-radius:24px;padding:22px;
  display:flex;flex-direction:column;gap:18px;overflow:auto;
}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;
  color:var(--ink);display:grid;place-items:center;font-size:20px;line-height:1;
  transition:background .2s ease,border-color .2s ease;
}
.drawer-close:hover{background:#F7F6F2;border-color:var(--ink)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-card{
  display:flex;align-items:center;gap:9px;padding:14px 12px;
  border:1px solid var(--line);border-radius:12px;
  font-size:13px;font-weight:600;color:var(--ink);background:#fff;
  transition:background .2s ease,border-color .2s ease;
}
.drawer-card svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.drawer-card:hover{background:#F7F6F2}
.drawer-card.is-active{border-color:var(--ink);background:#FCFCFA}
.drawer-cta{width:100%;margin-top:auto}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{
  opacity:1;transform:none;
  transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);
  transition-delay:var(--d,0ms);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 32px}
  .hero-grid{gap:40px}
  .claim,.method-wrap,.feature-grid{gap:36px}
}
@media (max-width:960px){
  .section{padding:80px 0}
  .section-tight{padding:60px 0}
  .nav-pills{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:48px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-title .line-2{padding-left:.5em}
  .hero-media{aspect-ratio:16/10;max-height:420px}
  .metrics{grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}
  .metric{border-right:none;border-bottom:1px solid var(--line);padding:18px 8px}
  .metric:nth-child(odd){border-right:1px solid var(--line)}
  .metric:nth-last-child(-n+2){border-bottom:none}
  .claim{grid-template-columns:1fr}
  .method-wrap{grid-template-columns:1fr}
  .method-photo{min-height:240px;aspect-ratio:16/9}
  .feature-grid{grid-template-columns:1fr}
  .cat-row{
    grid-template-columns:44px 1fr 32px;
    grid-template-areas:"idx name arrow" ". desc .";
    gap:6px 16px;padding:22px 8px;
  }
  .cat-idx{grid-area:idx}
  .cat-name{grid-area:name}
  .cat-desc{grid-area:desc}
  .cat-arrow{grid-area:arrow}
  .trust-band{grid-template-columns:1fr;gap:32px;padding:40px}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:40px}
  .cta-wrap{padding-bottom:80px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cms-row{
    grid-template-columns:1fr 24px;
    grid-template-areas:"date arrow" "main main" "badge badge";
    row-gap:10px;padding:20px 8px;
  }
  .cms-date{grid-area:date}
  .cms-main{grid-area:main}
  .cms-badge{grid-area:badge;justify-self:start}
  .cms-arrow{grid-area:arrow;align-self:start}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .site-head{padding-top:12px}
  .nav-shell{padding:10px 12px;border-radius:20px}
  .brand{font-size:17px}
  .brand-mark{width:30px;height:30px;font-size:13px}
  .hero{padding:36px 0 56px}
  .hero-sub{font-size:15px;margin-top:18px}
  .hero-actions{margin-top:24px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-media{border-radius:20px}
  .hero-float{left:12px;right:12px;bottom:12px;padding:12px 14px;border-radius:14px}
  .metrics{margin-top:40px}
  .metric b{font-size:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .feature-body{padding:20px}
  .feature-body h3{font-size:19px}
  .side-item{padding:18px 18px}
  .method-item{padding:20px 0;gap:16px}
  .method-item .num{font-size:17px;width:34px}
  .trust-band{padding:28px;border-radius:22px}
  .cta-band{padding:28px;border-radius:22px}
  .sub-form{flex-direction:column;align-items:stretch;gap:10px;padding:12px}
  .sub-form .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;gap:8px;margin-top:40px}
  .faq-q{font-size:15px;padding:20px 2px}
  .cms-empty{padding:44px 18px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#101114;
  --ink-2:#1C1E23;
  --accent:#C6F24E;
  --accent-deep:#9FD21F;
  --paper:#F5F4F0;
  --card:#FFFFFF;
  --line:#E3E1DA;
  --muted:#6E7278;
  --text:#3A3D42;
  --warm:#E8562A;
  --container:1240px;
  --r-card:20px;
  --r-sm:12px;
  --shadow-1:0 1px 2px rgba(16,17,20,.05);
  --shadow-2:0 18px 40px -20px rgba(16,17,20,.22);
}

*,*::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:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
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{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
::selection{background:var(--accent);color:var(--ink)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#EDEBE4}
::-webkit-scrollbar-thumb{background:#C9C6BC;border-radius:20px;border:2px solid #EDEBE4}
::-webkit-scrollbar-thumb:hover{background:var(--ink)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:18px 0;
  transition:padding .28s cubic-bezier(.2,.7,.2,1);
}
.site-header.is-scrolled{padding:10px 0}
.nav-shell{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  padding:12px 16px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-2);border-color:#D8D5CC}

.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--ink);
  color:var(--accent);
  font-weight:900;
  font-size:16px;
  line-height:1;
  flex:none;
}
.brand-name{font-size:16.5px;font-weight:800;letter-spacing:.02em;color:var(--ink);white-space:nowrap}

.nav-pills{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  flex:1 1 auto;
  flex-wrap:wrap;
}
.nav-pill{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 13px;
  border:1px solid var(--line);
  border-radius:10px;
  font-size:13px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease;
}
.nav-pill svg{
  width:16px;height:16px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.5;
  stroke-linecap:round;
  stroke-linejoin:round;
  transition:transform .22s ease;
}
.nav-pill:hover{background:#FBFAF7;border-color:#D6D3C9;color:var(--ink);transform:translateY(-1px)}
.nav-pill:hover svg{transform:rotate(6deg)}
.nav-pill.is-active{border-color:var(--ink);color:var(--ink);font-weight:700}
.nav-pill.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}

.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:#FBFAF7;border-color:var(--ink)}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  cursor:pointer;
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--accent);color:var(--ink);border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-2px);box-shadow:0 14px 26px -16px rgba(16,17,20,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:13px}

.text-link{
  font-size:13.5px;
  font-weight:600;
  color:var(--ink);
  padding-bottom:2px;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;
  background-size:0% 2px;
  background-position:0 100%;
  transition:background-size .3s cubic-bezier(.2,.7,.2,1);
}
.text-link:hover{background-size:100% 2px}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;display:none}
.mobile-drawer.is-open{display:block}
.drawer-backdrop{position:absolute;inset:0;background:rgba(16,17,20,.45);border:0;padding:0;cursor:pointer;width:100%}
.drawer-panel{
  position:absolute;
  top:0;right:0;bottom:0;
  width:min(88vw,370px);
  background:var(--card);
  border-left:1px solid var(--line);
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:20px;
  overflow-y:auto;
  animation:drawerIn .28s cubic-bezier(.2,.7,.2,1);
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:0}to{transform:translateX(0);opacity:1}}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.drawer-close:hover{border-color:var(--ink);background:#FBFAF7}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
.drawer-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  transition:background .2s ease,border-color .2s ease;
}
.drawer-card svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.drawer-card:hover{background:#FBFAF7;border-color:var(--ink)}
.drawer-card.is-active{border-color:var(--ink)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:26px 0 0;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C4C1B7}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.page-main{padding-bottom:8px}
.article-shell{max-width:780px;margin:0 auto;padding:34px 0 0}
.badge{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(232,86,42,.12);
  color:var(--warm);
  font-size:11px;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1.6;
}
.article-head h1{
  margin-top:18px;
  font-size:clamp(2rem,4.2vw,3.15rem);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--ink);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  margin-top:24px;
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{
  width:15px;height:15px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.5;
  stroke-linecap:round;
  stroke-linejoin:round;
  opacity:.75;
  flex:none;
}
.meta-item strong{color:var(--ink);font-weight:600}
.meta-strong{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 正文 ---------- */
.article-body{
  padding:36px 0 8px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
}
.article-body > * + *{margin-top:24px}
.article-body p{margin:0}
.article-body h2{
  font-size:clamp(1.45rem,2.5vw,1.85rem);
  font-weight:800;
  line-height:1.32;
  color:var(--ink);
  margin-top:52px;
  letter-spacing:-.005em;
}
.article-body h3{
  font-size:1.15rem;
  font-weight:700;
  line-height:1.45;
  color:var(--ink);
  margin-top:34px;
}
.article-body h4{font-size:1.02rem;font-weight:700;color:var(--ink);margin-top:26px}
.article-body ul,.article-body ol{padding-left:1.35em;display:block}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:10px 0;padding-left:.15em}
.article-body li::marker{color:var(--ink);font-weight:700}
.article-body strong{color:var(--ink);font-weight:700}
.article-body blockquote{
  margin:28px 0;
  padding:6px 0 6px 22px;
  border-left:3px solid var(--accent);
  font-style:italic;
  color:#2B2E33;
}
.article-body blockquote p{margin:0}
.article-body figure{margin:28px 0}
.article-body figure img{width:100%;border-radius:20px}
.article-body figcaption{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}
.article-body img{border-radius:20px;margin:0 auto}
.article-body a{
  color:var(--ink);
  font-weight:600;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;
  background-size:100% 2px;
  background-position:0 100%;
  transition:background-size .25s ease,color .25s ease;
}
.article-body a:hover{color:var(--ink);background-size:100% 40%}
.article-body code{
  background:#EDEBE4;
  color:#26292E;
  border-radius:6px;
  padding:2px 6px;
  font-size:.88em;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
.article-body pre{
  background:var(--ink);
  color:#EAEAE5;
  border-radius:16px;
  padding:20px 22px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0;font-size:inherit}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  display:block;
  overflow-x:auto;
  white-space:nowrap;
}
.article-body th,.article-body td{
  border-bottom:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
}
.article-body th{background:#FAF9F5;color:var(--ink);font-weight:700}

/* ---------- 空状态 ---------- */
.empty-block{
  margin:40px 0 8px;
  padding:56px 28px;
  text-align:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
}
.empty-block p{font-size:15px;color:var(--muted);margin-bottom:22px}
.empty-block .btn{display:inline-flex}

/* ---------- 相关阅读 ---------- */
.related{margin-top:64px}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.related-head h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);
  font-weight:800;
  color:var(--ink);
  line-height:1.3;
}
.related-list{display:block}
.related-list li + li{border-top:1px solid var(--line)}
.related-item{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 12px;
  margin:0 -12px;
  border-radius:12px;
  transition:background .22s ease;
}
.related-item:hover{background:#FBFAF7}
.rel-cat{
  flex:none;
  font-size:11px;
  font-weight:600;
  color:var(--warm);
  background:rgba(232,86,42,.12);
  border-radius:999px;
  padding:4px 10px;
  line-height:1.6;
}
.rel-title{
  flex:1 1 auto;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.55;
}
.rel-arrow{
  flex:none;
  color:var(--muted);
  font-size:16px;
  transition:transform .22s ease,color .22s ease;
}
.related-item:hover .rel-arrow{transform:translateX(4px);color:var(--ink)}

/* ---------- 底部 CTA ---------- */
.cta-band{margin-top:96px}
.cta-inner{
  background:var(--ink);
  border-radius:28px;
  padding:56px 52px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:44px;
  align-items:center;
  color:#fff;
}
.cta-inner h2{
  font-size:clamp(1.55rem,2.6vw,2.15rem);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.01em;
  color:#fff;
}
.cta-inner p{
  margin-top:14px;
  max-width:440px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
}
.sub-form{display:flex;flex-direction:column;gap:10px}
.sub-row{
  display:flex;
  align-items:center;
  gap:8px;
  background:transparent;
  border:1px solid rgba(255,255,255,.25);
  border-radius:999px;
  padding:6px 6px 6px 20px;
  transition:border-color .22s ease;
}
.sub-row:focus-within{border-color:var(--accent)}
.sub-row input{
  flex:1 1 auto;
  min-width:0;
  background:transparent;
  border:0;
  outline:none;
  color:#fff;
  font-size:14px;
  font-family:inherit;
  padding:8px 0;
}
.sub-row input::placeholder{color:rgba(255,255,255,.45)}
.form-tip{font-size:12px;color:var(--warm);min-height:18px;padding-left:4px}
.form-tip.is-ok{color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#fff;
  margin-top:96px;
  padding:72px 0 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:48px;
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  color:#fff;
  letter-spacing:.02em;
}
.foot-brand .brand-mark{background:var(--accent);color:var(--ink)}
.foot-desc{
  margin-top:16px;
  max-width:290px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.62);
}
.foot-title{
  margin-bottom:18px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(255,255,255,.45);
}
.foot-links{display:flex;flex-direction:column;gap:12px;font-size:14px}
.foot-links a{color:rgba(255,255,255,.8);transition:color .2s ease}
.foot-links a:hover{color:var(--accent)}
.foot-contact{display:flex;flex-direction:column;gap:14px;font-size:13px;line-height:1.75;color:rgba(255,255,255,.62)}
.foot-contact strong{display:block;color:#fff;font-weight:600;font-size:13px;margin-bottom:2px}
.foot-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
  transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 32px}
}
@media (max-width:1100px){
  .nav-pills{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav-shell{justify-content:space-between}
}
@media (max-width:1024px){
  .cta-inner{grid-template-columns:1fr;padding:44px 36px;gap:28px}
  .cta-inner p{max-width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:72px;padding:56px 0 24px}
  .cta-band{margin-top:72px}
}
@media (max-width:760px){
  .container{padding:0 20px}
  .article-shell{padding-top:26px}
  .article-body{font-size:16px;padding-top:28px}
  .article-body h2{margin-top:42px}
  .meta-row{gap:8px 16px;font-size:12.5px}
  .breadcrumb{font-size:12.5px;padding-top:20px}
  .breadcrumb .current{max-width:180px}
  .related{margin-top:48px}
  .related-item{gap:12px;padding:16px 10px;margin:0 -10px}
  .rel-title{font-size:14.5px}
  .cta-inner{padding:34px 22px;border-radius:22px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:40px}
  .sub-row{padding-left:16px}
  .btn{padding:10px 18px;font-size:13.5px}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .brand-mark{width:32px;height:32px;font-size:14px;border-radius:10px}
  .nav-shell{padding:10px 12px;border-radius:20px;gap:10px}
  .article-head h1{font-size:1.85rem}
  .drawer-grid{grid-template-columns:1fr 1fr;gap:8px}
  .empty-block{padding:40px 20px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
  .btn:hover,.nav-pill:hover,.related-item:hover .rel-arrow{transform:none}
}

/* roulang page: category1 */
:root{
    --ink:#101114;
    --ink-2:#1C1E23;
    --accent:#C6F24E;
    --accent-deep:#9FD21F;
    --paper:#F5F4F0;
    --card:#FFFFFF;
    --line:#E3E1DA;
    --muted:#6E7278;
    --body:#3A3D42;
    --warm:#E8562A;
    --radius-card:20px;
    --radius-sm:12px;
    --shadow-sm:0 1px 2px rgba(16,17,20,.04);
    --shadow-md:0 18px 40px -20px rgba(16,17,20,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
    --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--paper);
    color:var(--body);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer;border:none;background:none}
  input{font:inherit}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.2}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  ::selection{background:var(--accent);color:var(--ink)}
  :focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px}
  @media (min-width:1440px){ .container{max-width:1320px} }
  @media (max-width:1024px){ .container{padding:0 32px} }
  @media (max-width:640px){ .container{padding:0 20px} }

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px;background:linear-gradient(180deg,var(--paper) 62%,rgba(245,244,240,0))}
  .nav-shell{
    display:flex;align-items:center;gap:14px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:var(--shadow-sm);
    padding:12px 16px;
    transition:padding .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .nav-shell.is-scrolled{padding:8px 14px;box-shadow:var(--shadow-md);border-color:#D8D5CC}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--accent);
    display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:0;
  }
  .brand-text{font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap}

  .nav-pills{display:flex;align-items:center;gap:8px;margin-left:auto}
  .nav-pill{
    position:relative;
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 12px;
    border:1px solid var(--line);
    border-radius:10px;
    font-size:13px;
    line-height:1.4;
    color:var(--body);
    font-weight:500;
    white-space:nowrap;
    transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
  }
  .nav-pill svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s var(--ease)}
  .nav-pill:hover{background:#F2F1EC;border-color:#D8D5CC}
  .nav-pill:hover svg{transform:rotate(6deg)}
  .nav-pill.is-active{border-color:var(--ink);color:var(--ink);font-weight:700;background:#FBFAF7}
  .nav-pill.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--accent);border-radius:2px;
  }
  .nav-cta{
    flex-shrink:0;
    padding:10px 20px;
    border-radius:999px;
    background:var(--accent);
    color:var(--ink);
    font-size:13.5px;
    font-weight:700;
    box-shadow:var(--shadow-sm);
    transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  }
  .nav-cta:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 16px 28px -18px rgba(16,17,20,.4)}
  .nav-cta:active{transform:translateY(0)}

  .nav-burger{
    display:none;margin-left:auto;
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    align-items:center;justify-content:center;color:var(--ink);background:var(--card);
    transition:background .2s var(--ease),border-color .2s var(--ease);
  }
  .nav-burger:hover{background:#F2F1EC;border-color:#D8D5CC}
  .nav-burger svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}

  /* ---------- 抽屉 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:90;
    background:var(--paper);
    padding:20px;
    display:flex;flex-direction:column;gap:20px;
    transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .4s var(--ease),opacity .3s var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .drawer-head{display:flex;align-items:center;justify-content:space-between}
  .drawer-close{
    width:42px;height:42px;border-radius:999px;border:1px solid var(--ink);
    display:grid;place-items:center;color:var(--ink);
  }
  .drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .drawer-link{
    display:flex;align-items:center;gap:8px;
    padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--card);
    font-size:14px;font-weight:600;color:var(--ink);
  }
  .drawer-link svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
  .drawer-link.is-active{border-color:var(--ink);background:#FBFAF7}
  .drawer-cta{margin-top:auto;width:100%}

  /* ---------- 通用元素 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:12px;border:1px solid transparent;
    font-size:15px;font-weight:700;line-height:1.4;
    transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  }
  .btn-primary{background:var(--accent);color:var(--ink);box-shadow:var(--shadow-sm)}
  .btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 18px 30px -18px rgba(16,17,20,.4)}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}

  .badge{
    display:inline-flex;align-items:center;
    padding:3px 10px;border-radius:999px;
    font-size:10px;font-weight:600;letter-spacing:.05em;
    color:var(--warm);background:rgba(232,86,42,.12);
    white-space:nowrap;
  }
  .badge-accent{color:var(--ink);background:var(--accent)}

  .section{padding:64px 0}
  @media (min-width:1024px){ .section{padding:88px 0} }
  @media (max-width:640px){ .section{padding:48px 0} }
  .section-tight{padding:28px 0 0}

  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px}
  .section-head h2{font-size:clamp(1.8rem,3.2vw,2.65rem)}
  .section-head p{max-width:420px;font-size:14.5px;color:var(--muted);line-height:1.75}
  @media (max-width:768px){
    .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  }

  /* ---------- 页面头 ---------- */
  .page-head{padding:32px 0 56px}
  .crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:28px;flex-wrap:wrap}
  .crumb a{transition:color .2s var(--ease)}
  .crumb a:hover{color:var(--ink)}
  .crumb span{color:#B9B6AE}

  .head-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:52px;align-items:start}
  @media (max-width:1024px){ .head-grid{grid-template-columns:1fr;gap:32px} }

  .head-copy .badge{margin-bottom:18px}
  .page-title{font-size:clamp(2.6rem,6vw,4.5rem);line-height:1.04;letter-spacing:-.02em}
  .title-sub{display:block;font-size:.36em;font-weight:700;color:var(--muted);letter-spacing:0;margin-top:14px;line-height:1.3}
  .page-lead{max-width:560px;margin-top:22px;font-size:16.5px;line-height:1.85;color:var(--body)}
  .head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

  .head-stats{
    display:flex;gap:40px;flex-wrap:wrap;
    margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  }
  .head-stats li{display:flex;flex-direction:column;gap:2px}
  .head-stats strong{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-.02em}
  .head-stats span{font-size:12px;color:var(--muted);letter-spacing:.04em}

  .head-figure{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm)}
  .head-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .head-figure::after{content:"";position:absolute;inset:0;background:rgba(16,17,20,.08);pointer-events:none}
  .figure-note{
    position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
    background:var(--card);border-radius:12px;padding:10px 14px;
    font-size:12.5px;color:var(--body);box-shadow:var(--shadow-sm);
    display:flex;align-items:center;gap:8px;
  }
  .note-tag{
    font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.06em;
    background:var(--ink);color:var(--accent);padding:2px 8px;border-radius:999px;flex-shrink:0;
  }

  /* ---------- 项目跳转条 ---------- */
  .chip-bar{
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    padding:14px 18px;box-shadow:var(--shadow-sm);
  }
  .chip-label{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);margin-right:4px}
  .chip{
    display:inline-flex;align-items:center;
    padding:6px 14px;border-radius:999px;
    border:1px solid var(--line);background:#FBFAF7;
    font-size:13px;font-weight:600;color:var(--body);
    transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
  }
  .chip:hover{background:var(--accent);border-color:var(--accent-deep);color:var(--ink);transform:translateY(-2px)}
  .chip:active{transform:translateY(0)}
  .chip-note{margin-left:auto;font-size:12px;color:var(--muted)}
  @media (max-width:768px){ .chip-note{margin-left:0;width:100%} }

  /* ---------- 赛事节点列表 ---------- */
  .event-group{padding-top:26px}
  .event-group + .event-group{border-top:1px solid var(--line);margin-top:36px}
  .group-head{display:flex;align-items:baseline;gap:12px;margin-bottom:8px}
  .group-head h3{font-size:20px}
  .group-count{font-family:var(--mono);font-size:12px;color:var(--muted)}

  .event-row{
    display:grid;grid-template-columns:92px 1fr auto;gap:24px;align-items:start;
    padding:18px 12px;margin:0 -12px;
    border-top:1px dashed var(--line);
    transition:background .25s var(--ease);
  }
  .event-row:first-of-type{border-top:1px solid var(--line)}
  .event-row:hover{background:#FBFAF7}
  .phase{
    font-family:var(--mono);font-size:13px;font-weight:600;
    color:var(--muted);letter-spacing:.02em;padding-top:2px;
  }
  .event-main h4{font-size:17px;font-weight:700;line-height:1.45;margin-bottom:6px}
  .event-main p{font-size:14.5px;line-height:1.8;color:var(--body);max-width:720px}
  .event-row .badge{margin-top:3px}
  @media (max-width:768px){
    .event-row{grid-template-columns:1fr;gap:8px;padding:16px 10px;margin:0 -10px}
    .event-row .badge{margin-top:0}
  }

  /* ---------- 阅读维度 ---------- */
  .read-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
  @media (max-width:1024px){ .read-grid{grid-template-columns:1fr;gap:32px} }
  .read-intro h2{font-size:clamp(1.8rem,3.2vw,2.65rem);margin-bottom:18px}
  .read-intro p{font-size:15.5px;line-height:1.85;color:var(--body);max-width:460px}
  .read-figure{margin-top:28px;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm)}
  .read-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

  .read-list li{
    display:flex;gap:22px;align-items:flex-start;
    padding:26px 0;border-top:1px solid var(--line);
    transition:border-color .25s var(--ease);
  }
  .read-list li:first-child{border-top:2px solid var(--ink);padding-top:22px}
  .read-list li:hover{border-top-color:var(--accent-deep)}
  .read-num{
    font-family:var(--mono);font-size:15px;font-weight:700;
    color:var(--muted);line-height:1.6;flex-shrink:0;width:32px;
    transition:color .25s var(--ease);
  }
  .read-list li:hover .read-num{color:var(--ink)}
  .read-list h3{font-size:18px;margin-bottom:6px}
  .read-list p{font-size:14.5px;line-height:1.8;color:var(--body);max-width:560px}

  /* ---------- 流程 ---------- */
  .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  @media (max-width:1024px){ .flow{grid-template-columns:repeat(2,1fr)} }
  @media (max-width:640px){ .flow{grid-template-columns:1fr} }
  .flow-step{
    border-top:2px solid var(--ink);
    padding-top:20px;
    transition:border-color .25s var(--ease),transform .3s var(--ease);
  }
  .flow-step:hover{border-top-color:var(--accent-deep);transform:translateY(-3px)}
  .flow-num{
    display:block;font-family:var(--mono);font-size:26px;font-weight:700;
    color:var(--ink);letter-spacing:-.03em;margin-bottom:12px;
  }
  .flow-step h3{font-size:17px;margin-bottom:8px}
  .flow-step p{font-size:14px;line-height:1.8;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:.55fr 1fr;gap:56px;align-items:start}
  @media (max-width:1024px){ .faq-grid{grid-template-columns:1fr;gap:28px} }
  .faq-side h2{font-size:clamp(1.8rem,3.2vw,2.65rem);margin-bottom:16px}
  .faq-side p{font-size:14.5px;line-height:1.85;color:var(--muted);max-width:320px}

  .faq-item{border-top:1px solid var(--line)}
  .faq-item:first-child{border-top:2px solid var(--ink)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;
    font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-icon{
    flex-shrink:0;display:grid;place-items:center;
    width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
    color:var(--muted);
    transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  }
  .faq-icon svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
  .faq-item summary:hover .faq-icon{border-color:var(--ink);color:var(--ink)}
  .faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--ink);border-color:var(--ink)}
  .faq-item p{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--body);max-width:660px}

  /* ---------- CTA ---------- */
  .cta-band{padding:16px 0 0}
  .cta-inner{
    background:var(--ink);
    border-radius:24px;
    padding:56px;
    display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
    position:relative;overflow:hidden;
  }
  .cta-inner::before{
    content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;
    border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.18),rgba(198,242,78,0) 70%);
  }
  @media (max-width:1024px){ .cta-inner{grid-template-columns:1fr;gap:32px;padding:40px} }
  @media (max-width:640px){ .cta-inner{padding:30px 22px;border-radius:20px} }

  .cta-copy{position:relative;z-index:1}
  .cta-copy h2{color:#fff;font-size:clamp(1.7rem,3vw,2.4rem);margin:14px 0 14px}
  .cta-copy p{color:rgba(255,255,255,.66);font-size:14.5px;line-height:1.85;max-width:440px}

  .cta-form{position:relative;z-index:1}
  .field-row{display:flex;gap:12px}
  @media (max-width:640px){ .field-row{flex-direction:column} }
  .cta-form input[type="email"]{
    flex:1;min-width:0;
    padding:13px 16px;border-radius:12px;
    background:transparent;color:#fff;
    border:1px solid rgba(255,255,255,.25);
    font-size:14.5px;
    transition:border-color .25s var(--ease),background .25s var(--ease);
  }
  .cta-form input[type="email"]::placeholder{color:rgba(255,255,255,.45)}
  .cta-form input[type="email"]:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.04)}
  .form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.7}
  .form-note.is-error{color:#FF9B72}
  .form-note.is-ok{color:var(--accent)}

  /* ---------- 交叉入口 ---------- */
  .cross-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  @media (max-width:768px){ .cross-grid{grid-template-columns:1fr} }
  .cross-card{
    display:flex;flex-direction:column;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--ink)}
  .cross-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
  .cross-card:hover img{transform:scale(1.03)}
  .cross-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px}
  .cross-body h3{font-size:19px}
  .cross-body p{font-size:14px;line-height:1.8;color:var(--muted)}
  .cross-card.is-wide{grid-column:1/-1;flex-direction:row;align-items:stretch}
  .cross-card.is-wide img{width:46%;aspect-ratio:auto;height:100%;min-height:220px}
  .cross-card.is-wide .cross-body{justify-content:center;padding:32px}
  @media (max-width:768px){
    .cross-card.is-wide{flex-direction:column}
    .cross-card.is-wide img{width:100%;aspect-ratio:16/9;min-height:0}
    .cross-card.is-wide .cross-body{padding:22px 24px 26px}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 28px;font-size:14px}
  @media (max-width:640px){ .site-footer{margin-top:56px;padding:48px 0 24px} }
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
  @media (max-width:1024px){ .foot-grid{grid-template-columns:1fr 1fr;gap:32px} }
  @media (max-width:640px){ .foot-grid{grid-template-columns:1fr;gap:28px} }
  .foot-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:14px}
  .foot-desc{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);max-width:300px}
  .foot-title{font-size:12.5px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.42);margin-bottom:16px;text-transform:uppercase}
  .foot-links li,.foot-contact li{font-size:13.5px;line-height:2}
  .foot-links a{transition:color .22s var(--ease)}
  .foot-links a:hover{color:var(--accent)}
  .foot-contact li{color:rgba(255,255,255,.6)}
  .foot-contact strong{display:block;color:#fff;font-weight:600;font-size:13px;letter-spacing:.02em}
  .foot-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:12.5px;color:rgba(255,255,255,.45);
  }

  /* ---------- 入场动画 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .reveal.in{opacity:1;transform:translateY(0)}

  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
    .reveal{opacity:1 !important;transform:none !important}
    html{scroll-behavior:auto}
    .cross-card:hover,.flow-step:hover,.btn:hover,.nav-cta:hover{transform:none !important}
    .cross-card:hover img{transform:none !important}
  }

  @media (max-width:1024px){
    .nav-pills{display:none}
    .nav-cta{display:none}
    .nav-burger{display:inline-flex}
  }
  @media (min-width:1025px){
    .drawer{display:none}
  }

/* roulang page: category2 */
:root{
  --ink:#101114;
  --ink-2:#1C1E23;
  --accent:#C6F24E;
  --accent-deep:#9FD21F;
  --paper:#F5F4F0;
  --card:#FFFFFF;
  --line:#E3E1DA;
  --muted:#6E7278;
  --body:#3A3D42;
  --warm:#E8562A;
  --radius-card:20px;
  --radius-sm:14px;
  --radius-btn:12px;
  --radius-nav:24px;
  --shadow-1:0 1px 2px rgba(16,17,20,.04);
  --shadow-2:0 18px 40px -20px rgba(16,17,20,.18);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--body);
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
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}
svg{display:block}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 48px;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:16px 0;
  background:linear-gradient(to bottom,rgba(245,244,240,.94) 55%,rgba(245,244,240,0));
  backdrop-filter:blur(10px);
  transition:padding .28s ease;
}
.site-header.is-scrolled{padding:10px 0}
.nav-shell{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-nav);
  padding:12px 16px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-2)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:-.01em;
}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-size:15px;font-weight:800;line-height:1;flex:none;
}
.nav-pills{
  display:flex;align-items:center;gap:8px;flex:1;justify-content:center;flex-wrap:nowrap;
}
.nav-pill{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:13px;font-weight:500;color:var(--body);white-space:nowrap;
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.nav-pill svg{
  width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;transition:transform .3s ease;
}
.nav-pill:hover{background:#F7F6F2;border-color:#CFCDC4;color:var(--ink)}
.nav-pill:hover svg{transform:rotate(6deg)}
.nav-pill.is-active{
  border-color:var(--ink);color:var(--ink);font-weight:700;background:#fff;
}
.nav-pill.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-accent{background:var(--accent);color:var(--ink);border-radius:999px}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.nav-cta{padding:10px 18px;font-size:13px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  place-items:center;background:#fff;color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
/* ---------- drawer ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:90;display:none;
  flex-direction:column;gap:20px;padding:20px;
  background:var(--paper);overflow-y:auto;
}
.nav-drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{
  width:44px;height:44px;border-radius:999px;border:1px solid var(--ink);
  display:grid;place-items:center;color:var(--ink);
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-card{
  display:flex;flex-direction:column;gap:8px;
  padding:16px;border:1px solid var(--line);border-radius:16px;background:#fff;
  font-size:13px;font-weight:600;color:var(--ink);
}
.drawer-card svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.drawer-card.is-active{border-color:var(--ink);box-shadow:inset 0 -2px 0 var(--accent)}
.drawer-card span{font-weight:500;color:var(--muted);font-size:12px;line-height:1.6}
.drawer-cta{width:100%;margin-top:auto}
/* ---------- sections ---------- */
.section{padding:clamp(56px,7.5vw,112px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:clamp(28px,3.5vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
h1{font-size:clamp(2.6rem,6vw,5rem);line-height:1.04;font-weight:900;color:var(--ink);letter-spacing:-.015em}
h2{font-size:clamp(1.7rem,3vw,2.6rem);line-height:1.16;font-weight:800;color:var(--ink);letter-spacing:-.01em}
h3{font-size:19px;line-height:1.4;font-weight:700;color:var(--ink)}
.lead{font-size:16px;line-height:1.85;color:var(--body);max-width:560px}
.muted{color:var(--muted)}
.small{font-size:13px;line-height:1.8}
.badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:rgba(232,86,42,.12);color:var(--warm);
  font-size:11px;font-weight:600;letter-spacing:.03em;
}
.badge-cool{background:rgba(16,17,20,.06);color:var(--ink)}
/* ---------- hero ---------- */
.page-hero{padding:clamp(28px,4vw,56px) 0 0}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(28px,4vw,56px);align-items:end;
}
.hero-copy{display:flex;flex-direction:column;gap:22px;max-width:640px}
.hero-h1-sub{display:block;font-size:clamp(1.3rem,2.6vw,2rem);font-weight:500;color:var(--muted);line-height:1.35;margin-top:10px;letter-spacing:0}
.hero-figure{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--ink-2);aspect-ratio:5/4;
}
.hero-figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;background:rgba(16,17,20,.08);
}
.float-card{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:16px;
  padding:12px 16px;box-shadow:var(--shadow-1);
}
.float-card p{font-size:13px;line-height:1.6;color:var(--ink);font-weight:600}
.float-card span{font-size:11px;color:var(--muted);font-weight:500}
.anchor-bar{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.anchor-bar a{
  padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;
  font-size:13px;color:var(--muted);
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.anchor-bar a:hover{border-color:var(--ink);color:var(--ink);background:#fff}
/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,3vw,40px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:26px 0;margin-top:clamp(32px,4vw,56px);
}
.stat-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;color:var(--ink);line-height:1.1;
  transition:color .25s ease;
}
.stat-item:hover .stat-num{color:var(--accent-deep)}
.stat-label{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.6}
/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(16px,2vw,24px)}
.gallery.gallery-rev{grid-template-columns:.7fr 1.3fr}
.tile{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--card);
  min-height:clamp(230px,26vw,360px);
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.tile:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.tile img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.tile:hover img{transform:scale(1.03)}
.tile-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.94);
  font-size:11px;font-weight:600;color:var(--ink);letter-spacing:.02em;
}
.tile-card{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;box-shadow:var(--shadow-1);
}
.tile-card h3{font-size:16px;margin-bottom:3px}
.tile-card p{font-size:12px;color:var(--muted);line-height:1.6}
.gallery-notes{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px;
}
.note-row{
  display:flex;align-items:flex-start;gap:12px;
  padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
}
.note-row svg{
  width:20px;height:20px;flex:none;margin-top:2px;
  fill:none;stroke:var(--accent-deep);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.note-row strong{display:block;font-size:14px;color:var(--ink);font-weight:700;margin-bottom:2px}
.note-row span{font-size:13px;color:var(--muted);line-height:1.7}
/* ---------- spec panel ---------- */
.spec-panel{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.spec-cell{padding:clamp(20px,2.6vw,32px);border-left:1px solid var(--line)}
.spec-cell:first-child{border-left:0}
.spec-cell .k{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;color:var(--ink);line-height:1.1;
  transition:color .25s ease;
}
.spec-cell:hover .k{color:var(--accent-deep)}
.spec-cell .t{font-size:13px;font-weight:700;color:var(--ink);margin-top:8px}
.spec-cell .d{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:4px}
.spec-foot{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.8}
/* ---------- scene split ---------- */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,64px);align-items:start}
.scene-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.scene-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.scene-item:hover{background:#FBFAF7}
.scene-idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;color:var(--muted);letter-spacing:.08em;
}
.scene-item h3{font-size:17px;margin-bottom:3px}
.scene-item p{font-size:13.5px;color:var(--muted);line-height:1.7;max-width:460px}
.scene-arrow{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.scene-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scene-item:hover .scene-arrow{transform:translateX(4px);border-color:var(--ink);background:#fff}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2.2vw,24px)}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:clamp(22px,2.6vw,32px);
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.step-card:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:clamp(2rem,3.4vw,2.8rem);font-weight:700;color:var(--ink);line-height:1;
  display:block;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.8;color:var(--body)}
.step-card .tag{
  display:inline-block;margin-top:16px;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);font-size:11.5px;color:var(--muted);
}
/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink-2)}
.faq-ico{
  position:relative;width:22px;height:22px;flex:none;
  transition:transform .24s ease,color .24s ease;color:var(--muted);
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-ico::before{left:0;right:0;top:10px;height:2px}
.faq-ico::after{top:0;bottom:0;left:10px;width:2px}
.faq-item[open] .faq-ico{transform:rotate(45deg);color:var(--ink)}
.faq-a{
  padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--body);max-width:760px;
  animation:fadeIn .24s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:#fff;border-radius:24px;
  padding:clamp(32px,4.6vw,60px);
  display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,3.4vw,48px);align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(198,242,78,.12);
}
.cta-band h2{color:#fff;position:relative}
.cta-band p{color:rgba(255,255,255,.7);font-size:14.5px;line-height:1.85;margin-top:12px;max-width:460px;position:relative}
.cta-band .eyebrow{color:rgba(255,255,255,.55);position:relative}
.cta-band .eyebrow::before{background:var(--accent)}
.sub-form{display:flex;gap:10px;position:relative;flex-wrap:wrap}
.sub-form input{
  flex:1;min-width:200px;padding:14px 18px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.25);
  color:#fff;font-size:14px;transition:border-color .25s ease,background .25s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.1)}
.form-tip{font-size:12.5px;color:var(--accent);margin-top:12px;min-height:18px;position:relative}
/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:#fff;margin-top:clamp(56px,7vw,112px);
  padding:clamp(48px,5.5vw,76px) 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:clamp(24px,3vw,44px)}
.foot-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff}
.foot-brand .brand-mark{background:#fff;color:var(--ink)}
.foot-desc{font-size:13px;line-height:1.9;color:rgba(255,255,255,.62);margin-top:16px;max-width:280px}
.foot-title{
  font-size:12px;font-weight:600;letter-spacing:.16em;color:rgba(255,255,255,.45);
  margin-bottom:14px;text-transform:uppercase;
}
.foot-links li{line-height:2.1}
.foot-links a{
  font-size:13.5px;color:rgba(255,255,255,.8);
  transition:color .22s ease;
}
.foot-links a:hover{color:var(--accent)}
.foot-contact li{font-size:13px;color:rgba(255,255,255,.68);line-height:2}
.foot-contact strong{color:#fff;font-weight:600;margin-right:8px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:clamp(32px,4vw,52px);padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.45);
}
/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-pills{display:none}
  .nav-toggle{display:grid}
  .nav-actions{margin-left:auto}
  .nav-cta{display:none}
  .brand{margin-right:auto}
}
@media (max-width:1024px){
  .container{padding:0 32px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{aspect-ratio:16/9;order:-1}
  .gallery,.gallery.gallery-rev{grid-template-columns:1fr 1fr}
  .spec-panel{grid-template-columns:repeat(2,1fr)}
  .spec-cell:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .spec-cell:nth-child(4){border-top:1px solid var(--line)}
  .split{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr);row-gap:24px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  body{font-size:15px}
  .site-header{padding:10px 0}
  .nav-shell{border-radius:18px;padding:10px 12px;gap:10px}
  .brand{font-size:15px}
  .brand-mark{width:28px;height:28px;font-size:13px;border-radius:8px}
  h1{font-size:clamp(2.2rem,10vw,2.9rem)}
  .hero-h1-sub{font-size:1.05rem}
  .anchor-bar a{font-size:12px;padding:6px 12px}
  .gallery,.gallery.gallery-rev{grid-template-columns:1fr}
  .tile{min-height:240px}
  .gallery-notes{grid-template-columns:1fr}
  .spec-panel{grid-template-columns:1fr}
  .spec-cell{border-left:0;border-top:1px solid var(--line)}
  .spec-cell:first-child{border-top:0}
  .steps{grid-template-columns:1fr}
  .scene-item{grid-template-columns:auto 1fr;gap:12px}
  .scene-arrow{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-band{padding:28px 22px;border-radius:20px}
  .sub-form input{min-width:0;width:100%}
  .sub-form .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
  .stat-strip{grid-template-columns:1fr 1fr;gap:18px}
}
@media (min-width:1441px){
  .container{max-width:1320px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
  .tile:hover,.step-card:hover,.btn:hover{transform:none}
  .tile:hover img{transform:none}
}

/* roulang page: category3 */
:root{
    --ink:#101114;
    --ink-2:#1C1E23;
    --accent:#C6F24E;
    --accent-deep:#9FD21F;
    --paper:#F5F4F0;
    --card:#FFFFFF;
    --line:#E3E1DA;
    --muted:#6E7278;
    --text:#3A3D42;
    --warm:#E8562A;
    --r-card:20px;
    --r-nav:24px;
    --r-btn:999px;
    --shadow-1:0 1px 2px rgba(16,17,20,.04);
    --shadow-2:0 18px 40px -20px rgba(16,17,20,.18);
    --max:1240px;
    --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:120px;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.16;letter-spacing:-.01em;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  ::selection{background:var(--accent);color:var(--ink);}

  .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 48px;}
  .mono{font-family:var(--mono);}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:90;
    padding:14px 0 10px;
    background:linear-gradient(180deg,rgba(245,244,240,.97) 0%,rgba(245,244,240,.88) 62%,rgba(245,244,240,0) 100%);
    backdrop-filter:blur(8px);
    transition:padding .3s ease;
  }
  .site-header.is-compact{padding:8px 0 6px;}
  .header-shell{
    width:calc(100% - 48px);
    max-width:var(--max);
    margin:0 auto;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-nav);
    box-shadow:var(--shadow-1);
    padding:10px 14px;
    display:flex;
    align-items:center;
    gap:16px;
    transition:box-shadow .3s ease,padding .3s ease;
  }
  .site-header.is-compact .header-shell{box-shadow:var(--shadow-2);padding:8px 14px;}
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex:0 0 auto;
    padding-right:6px;
    border-right:1px solid var(--line);
  }
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    background:var(--ink);
    color:var(--accent);
    border-radius:10px;
    font-weight:800;
    font-size:16px;
    line-height:1;
    flex:0 0 auto;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.1;}
  .brand-text b{font-size:16px;color:var(--ink);font-weight:800;letter-spacing:.01em;}
  .brand-text em{font-style:normal;font-size:9px;letter-spacing:.18em;color:var(--muted);font-family:var(--mono);margin-top:4px;}

  .nav-pills{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;flex-wrap:wrap;}
  .nav-pill{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 12px;
    border:1px solid var(--line);
    border-radius:10px;
    font-size:13px;
    color:var(--text);
    background:transparent;
    transition:background .25s ease,border-color .25s ease,color .25s ease,transform .25s ease;
  }
  .nav-pill svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s ease;}
  .nav-pill:hover{background:#F7F6F2;border-color:#D7D5CD;transform:translateY(-1px);}
  .nav-pill:hover svg{transform:rotate(6deg);}
  .nav-pill.is-active{
    background:var(--card);
    border-color:var(--ink);
    color:var(--ink);
    font-weight:700;
    box-shadow:0 1px 2px rgba(16,17,20,.05);
  }
  .nav-pill.is-active::after{
    content:"";
    position:absolute;
    left:11px;right:11px;bottom:3px;
    height:2px;
    background:var(--accent);
    border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--r-btn);
    padding:12px 22px;
    font-size:14px;
    font-weight:600;
    border:1px solid transparent;
    transition:transform .25s ease,background .25s ease,color .25s ease,box-shadow .25s ease,border-color .25s ease;
    white-space:nowrap;
  }
  .btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
  .btn-primary{background:var(--accent);color:var(--ink);}
  .btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{padding:9px 16px;font-size:13px;}
  .btn:focus-visible{outline:2px solid var(--ink);outline-offset:3px;}
  .btn-on-dark:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

  .menu-toggle{
    display:none;
    width:42px;height:42px;
    border:1px solid var(--line);
    border-radius:12px;
    align-items:center;
    justify-content:center;
    background:var(--card);
    transition:background .25s ease,border-color .25s ease;
  }
  .menu-toggle:hover{background:#F7F6F2;border-color:#D7D5CD;}
  .menu-toggle svg{width:20px;height:20px;fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round;}

  .mobile-drawer{
    display:none;
    position:fixed;
    inset:0;
    z-index:120;
    background:rgba(16,17,20,.55);
    opacity:0;
    pointer-events:none;
    transition:opacity .25s ease;
  }
  .mobile-drawer.is-open{opacity:1;pointer-events:auto;}
  .drawer-panel{
    position:absolute;
    top:14px;left:14px;right:14px;
    background:var(--card);
    border-radius:24px;
    border:1px solid var(--line);
    padding:20px;
    transform:translateY(-14px);
    transition:transform .3s cubic-bezier(.2,.7,.2,1);
    max-height:calc(100vh - 28px);
    overflow:auto;
  }
  .mobile-drawer.is-open .drawer-panel{transform:translateY(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
  .drawer-close{
    width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
    display:grid;place-items:center;background:var(--card);
  }
  .drawer-close svg{width:18px;height:18px;fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round;}
  .drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;}
  .drawer-link{
    display:flex;align-items:center;gap:8px;
    padding:12px 12px;
    border:1px solid var(--line);
    border-radius:12px;
    font-size:13px;
    color:var(--ink);
    background:var(--card);
  }
  .drawer-link svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
  .drawer-link.is-active{border-color:var(--ink);background:#FBFAF7;font-weight:700;}
  .drawer-cta{width:100%;}

  /* ---------- 通用徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:11px;
    font-weight:600;
    letter-spacing:.05em;
  }
  .badge-warm{color:var(--warm);background:rgba(232,86,42,.12);}
  .badge-line{color:var(--muted);background:var(--card);border:1px solid var(--line);}
  .eyebrow{
    display:inline-block;
    font-family:var(--mono);
    font-size:12px;
    letter-spacing:.16em;
    color:var(--muted);
    text-transform:uppercase;
    margin-bottom:14px;
  }

  /* ---------- 首屏 ---------- */
  .page-hero{padding:36px 0 0;}
  .hero-grid{
    display:grid;
    grid-template-columns:1.25fr .85fr;
    gap:56px;
    align-items:center;
  }
  .hero-copy h1{
    font-size:clamp(2.3rem,4.6vw,4.05rem);
    font-weight:900;
    line-height:1.06;
    margin:18px 0 0;
  }
  .hero-copy h1 .h1-line2{
    display:block;
    padding-left:.9em;
    color:var(--ink);
    position:relative;
  }
  .hero-copy h1 .h1-line2::after{
    content:"";
    display:inline-block;
    width:56px;height:6px;
    background:var(--accent);
    border-radius:3px;
    margin-left:14px;
    vertical-align:middle;
    transform:translateY(-6px);
  }
  .hero-sub{
    max-width:520px;
    margin-top:22px;
    font-size:16.5px;
    line-height:1.8;
    color:var(--text);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-stats{
    display:flex;
    flex-wrap:wrap;
    gap:12px 40px;
    margin-top:38px;
    padding-top:22px;
    border-top:1px solid var(--line);
  }
  .hero-stats li{display:flex;flex-direction:column;gap:2px;}
  .hero-stats .num{
    font-family:var(--mono);
    font-size:26px;
    font-weight:700;
    color:var(--ink);
    line-height:1.2;
    transition:color .25s ease;
  }
  .hero-stats li:hover .num{color:var(--accent-deep);}
  .hero-stats .cap{font-size:12px;color:var(--muted);letter-spacing:.02em;}

  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;
    aspect-ratio:5/6;
    object-fit:cover;
    border-radius:24px;
    border:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .hero-visual::after{
    content:"";
    position:absolute;
    inset:0;
    border-radius:24px;
    background:linear-gradient(180deg,rgba(16,17,20,.02) 40%,rgba(16,17,20,.28) 100%);
    pointer-events:none;
  }
  .float-card{
    position:absolute;
    left:-18px;
    bottom:26px;
    z-index:2;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:16px;
    padding:14px 16px;
    max-width:250px;
    box-shadow:var(--shadow-2);
  }
  .float-card .fc-tag{
    font-family:var(--mono);
    font-size:10px;
    letter-spacing:.14em;
    color:var(--warm);
    display:block;
    margin-bottom:6px;
  }
  .float-card p{font-size:13px;line-height:1.6;color:var(--ink);font-weight:600;}

  /* ---------- 板块骨架 ---------- */
  .section{padding:104px 0 0;}
  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:44px;
    padding-bottom:20px;
    border-bottom:1px solid var(--line);
  }
  .section-head h2{font-size:clamp(1.7rem,3vw,2.5rem);font-weight:800;max-width:640px;}
  .section-note{max-width:360px;font-size:14px;color:var(--muted);line-height:1.75;}

  /* ---------- 锚点 + 步骤 ---------- */
  .step-layout{
    display:grid;
    grid-template-columns:.72fr 1.5fr;
    gap:56px;
    align-items:start;
  }
  .anchor-panel{
    position:sticky;
    top:110px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px 22px;
    box-shadow:var(--shadow-1);
  }
  .anchor-title{
    font-size:13px;
    letter-spacing:.12em;
    color:var(--muted);
    font-weight:700;
    text-transform:uppercase;
    margin-bottom:14px;
  }
  .anchor-list li + li{margin-top:4px;}
  .anchor-list a{
    display:flex;
    align-items:center;
    gap:10px;
    padding:9px 10px;
    border-radius:10px;
    font-size:14px;
    color:var(--text);
    transition:background .2s ease,color .2s ease,padding-left .2s ease;
  }
  .anchor-list a .dot{
    width:6px;height:6px;border-radius:999px;background:var(--line);
    flex:0 0 auto;
    transition:background .2s ease,transform .2s ease;
  }
  .anchor-list a:hover{background:#FBFAF7;color:var(--ink);padding-left:14px;}
  .anchor-list a:hover .dot{background:var(--accent-deep);transform:scale(1.4);}
  .anchor-tip{
    margin-top:18px;
    padding-top:16px;
    border-top:1px solid var(--line);
    font-size:12.5px;
    line-height:1.7;
    color:var(--muted);
  }
  .steps{display:flex;flex-direction:column;}
  .step{
    display:grid;
    grid-template-columns:88px 1fr;
    gap:24px;
    padding:28px 0;
    border-bottom:1px solid var(--line);
    transition:background .25s ease;
  }
  .step:first-child{padding-top:6px;}
  .step:hover{background:#FBFAF7;}
  .step-num{
    font-family:var(--mono);
    font-size:30px;
    font-weight:700;
    color:var(--muted);
    line-height:1.1;
    letter-spacing:-.03em;
    transition:color .25s ease;
  }
  .step:hover .step-num{color:var(--ink);}
  .step h3{font-size:20px;font-weight:800;margin-bottom:8px;}
  .step p{font-size:15px;line-height:1.85;color:var(--text);max-width:640px;}
  .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
  .step-tags li{
    padding:4px 11px;
    border:1px solid var(--line);
    border-radius:999px;
    font-size:12px;
    color:var(--muted);
    background:var(--card);
  }

  /* ---------- 深色强度带 ---------- */
  .band-dark{
    margin-top:104px;
    background:var(--ink);
    color:#E7E6E1;
    padding:88px 0;
  }
  .band-dark .eyebrow{color:#8C9096;}
  .band-dark h2{color:#fff;font-size:clamp(1.7rem,3vw,2.4rem);max-width:620px;}
  .band-dark .band-lead{max-width:560px;margin-top:16px;font-size:15px;color:#B9BAB6;line-height:1.85;}
  .metric-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
    margin-top:44px;
  }
  .metric{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.12);
    border-radius:16px;
    padding:22px 20px;
    transition:border-color .25s ease,transform .25s ease,background .25s ease;
  }
  .metric:hover{border-color:var(--accent);transform:translateY(-4px);background:rgba(255,255,255,.08);}
  .metric .m-num{
    font-family:var(--mono);
    font-size:30px;
    font-weight:700;
    color:var(--accent);
    line-height:1.1;
    display:block;
  }
  .metric .m-label{
    display:block;
    margin-top:10px;
    font-size:14px;
    font-weight:700;
    color:#fff;
  }
  .metric .m-desc{
    display:block;
    margin-top:6px;
    font-size:12.5px;
    line-height:1.65;
    color:#9FA2A0;
  }
  .band-dark .band-foot{
    margin-top:36px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:14px;
    font-size:13px;
    color:#9FA2A0;
  }

  /* ---------- 适用场景 ---------- */
  .scenario-grid{
    display:grid;
    grid-template-columns:1.4fr .95fr;
    gap:24px;
    align-items:stretch;
  }
  .scenario-main{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  }
  .scenario-main:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2);}
  .scenario-main img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    transition:transform .4s ease;
  }
  .scenario-main:hover img{transform:scale(1.03);}
  .scenario-body{padding:24px;}
  .scenario-body h3{font-size:20px;margin-bottom:10px;}
  .scenario-body p{font-size:14.5px;line-height:1.85;color:var(--text);}
  .scenario-list{display:flex;flex-direction:column;gap:16px;}
  .scenario-item{
    flex:1;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    box-shadow:var(--shadow-1);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .scenario-item:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2);background:#FBFAF7;}
  .scenario-item h3{font-size:17px;margin:12px 0 8px;}
  .scenario-item p{font-size:14px;line-height:1.8;color:var(--text);}
  .scenario-item .mini-line{
    display:inline-block;
    font-family:var(--mono);
    font-size:11px;
    letter-spacing:.1em;
    color:var(--muted);
  }

  /* ---------- 常见问题 ---------- */
  .faq-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:8px 28px;
    box-shadow:var(--shadow-1);
  }
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:none;}
  .faq-item summary{
    list-style:none;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    padding:22px 0;
    cursor:pointer;
    font-size:16px;
    font-weight:700;
    color:var(--ink);
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--ink-2);}
  .faq-plus{
    flex:0 0 auto;
    width:26px;height:26px;
    border-radius:999px;
    border:1px solid var(--line);
    display:grid;place-items:center;
    transition:transform .24s ease,border-color .24s ease,background .24s ease;
    margin-top:2px;
  }
  .faq-plus svg{width:13px;height:13px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;}
  .faq-item[open] .faq-plus{transform:rotate(45deg);border-color:var(--ink);background:var(--accent);}
  .faq-answer{
    padding:0 0 24px;
    font-size:15px;
    line-height:1.85;
    color:var(--text);
    max-width:780px;
  }

  /* ---------- 交叉入口 ---------- */
  .cross-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
  }
  .cross-card{
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    gap:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    box-shadow:var(--shadow-1);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  }
  .cross-card:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2);}
  .cross-card h3{font-size:18px;margin-top:12px;}
  .cross-card p{font-size:13.5px;line-height:1.8;color:var(--muted);margin-top:8px;}
  .cross-more{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    color:var(--ink);
  }
  .cross-more svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease;}
  .cross-card:hover .cross-more svg{transform:translateX(4px);}

  /* ---------- CTA ---------- */
  .cta-wrap{padding:104px 0 0;}
  .cta-panel{
    background:var(--ink);
    border-radius:28px;
    padding:56px;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:48px;
    align-items:center;
    color:#EDECE7;
    position:relative;
    overflow:hidden;
  }
  .cta-panel::before{
    content:"";
    position:absolute;
    right:-90px;top:-90px;
    width:280px;height:280px;
    border-radius:999px;
    background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
    pointer-events:none;
  }
  .cta-panel h2{color:#fff;font-size:clamp(1.6rem,2.8vw,2.2rem);max-width:440px;}
  .cta-panel .cta-desc{margin-top:14px;font-size:14.5px;line-height:1.85;color:#B9BAB6;max-width:460px;}
  .cta-form{position:relative;z-index:1;}
  .field-row{display:flex;gap:10px;align-items:center;background:transparent;}
  .cta-input{
    flex:1 1 auto;
    min-width:0;
    background:transparent;
    border:1px solid rgba(255,255,255,.25);
    border-radius:999px;
    padding:13px 20px;
    color:#fff;
    font-size:14px;
    outline:none;
    transition:border-color .25s ease,background .25s ease;
  }
  .cta-input::placeholder{color:#8E9290;}
  .cta-input:focus{border-color:var(--accent);background:rgba(255,255,255,.04);}
  .form-hint{margin-top:12px;font-size:12px;color:#8E9290;line-height:1.7;}
  .form-msg{margin-top:10px;font-size:12.5px;color:var(--accent);display:none;}
  .form-msg.is-error{color:#FF8A63;}
  .form-msg.is-on{display:block;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:104px;
    background:var(--ink);
    color:#D6D5D0;
    padding:64px 0 26px;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.4fr .8fr .8fr 1.1fr;
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .foot-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:#fff;
    font-weight:800;
    font-size:16px;
    margin-bottom:14px;
  }
  .site-footer .brand-mark{background:var(--accent);color:var(--ink);}
  .foot-desc{font-size:13px;line-height:1.9;color:#9FA2A0;max-width:300px;}
  .foot-title{
    font-size:12px;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:#8C9096;
    font-weight:700;
    margin-bottom:16px;
  }
  .foot-links li + li,.foot-contact li + li{margin-top:10px;}
  .foot-links a{
    font-size:13.5px;
    color:#D6D5D0;
    transition:color .2s ease,padding-left .2s ease;
  }
  .foot-links a:hover{color:var(--accent);padding-left:4px;}
  .foot-contact li{font-size:13px;line-height:1.85;color:#9FA2A0;}
  .foot-contact strong{display:block;color:#D6D5D0;font-weight:600;font-size:12.5px;}
  .foot-bottom{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px;
    padding-top:22px;
    font-size:12px;
    color:#8C9096;
  }

  /* ---------- 入场动画 ---------- */
  .reveal{opacity:0;transform:translateY(12px);}
  .reveal.is-in{
    opacity:1;
    transform:translateY(0);
    transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1200px){
    .nav-pills{gap:6px;}
    .nav-pill{padding:7px 10px;font-size:12.5px;}
  }
  @media (max-width:1024px){
    .container{padding:0 32px;}
    .header-shell{width:calc(100% - 32px);}
    .nav-pills,.header-actions .btn{display:none;}
    .menu-toggle{display:inline-flex;}
    .mobile-drawer{display:block;}
    .header-shell{justify-content:space-between;}
    .brand{border-right:none;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero-visual{order:-1;max-width:520px;}
    .hero-visual img{aspect-ratio:16/10;}
    .float-card{left:14px;bottom:14px;}
    .step-layout{grid-template-columns:1fr;gap:32px;}
    .anchor-panel{position:static;}
    .anchor-list{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;}
    .scenario-grid{grid-template-columns:1fr;}
    .metric-grid{grid-template-columns:repeat(2,1fr);}
    .cross-grid{grid-template-columns:1fr;}
    .cta-panel{grid-template-columns:1fr;padding:40px;gap:28px;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding-top:80px;}
    .band-dark{margin-top:80px;padding:64px 0;}
    .cta-wrap,.site-footer{margin-top:80px;}
    .cta-wrap{padding-top:80px;}
  }
  @media (max-width:640px){
    body{font-size:15px;}
    .container{padding:0 20px;}
    .header-shell{width:calc(100% - 24px);padding:8px 10px;border-radius:20px;}
    .brand-mark{width:30px;height:30px;font-size:14px;}
    .brand-text b{font-size:15px;}
    .brand-text em{font-size:8px;}
    .site-header{padding-top:10px;}
    .page-hero{padding-top:20px;}
    .hero-copy h1{font-size:clamp(2rem,8vw,2.6rem);}
    .hero-copy h1 .h1-line2{padding-left:.6em;}
    .hero-copy h1 .h1-line2::after{width:34px;height:5px;margin-left:8px;}
    .hero-sub{font-size:15px;margin-top:16px;}
    .hero-stats{gap:16px 26px;margin-top:26px;}
    .hero-stats .num{font-size:22px;}
    .hero-visual img{aspect-ratio:4/3;border-radius:18px;}
    .float-card{position:static;margin-top:12px;max-width:none;box-shadow:var(--shadow-1);}
    .section{padding-top:56px;}
    .section-head{margin-bottom:28px;gap:12px;}
    .section-note{max-width:none;}
    .anchor-list{grid-template-columns:1fr;}
    .step{grid-template-columns:1fr;gap:8px;padding:22px 0;}
    .step-num{font-size:22px;}
    .step h3{font-size:18px;}
    .band-dark{margin-top:56px;padding:48px 0;}
    .metric-grid{grid-template-columns:1fr;margin-top:28px;}
    .scenario-body{padding:18px;}
    .scenario-item{padding:18px;}
    .faq-card{padding:4px 18px;}
    .faq-item summary{font-size:15px;padding:18px 0;}
    .cta-wrap{padding-top:56px;}
    .cta-panel{padding:28px 20px;border-radius:22px;}
    .field-row{flex-direction:column;align-items:stretch;gap:10px;}
    .cta-input{width:100%;}
    .cta-panel .btn{width:100%;}
    .site-footer{margin-top:56px;padding:44px 0 22px;}
    .foot-grid{grid-template-columns:1fr;gap:26px;}
    .foot-bottom{flex-direction:column;}
  }
  @media (min-width:1440px){
    :root{--max:1320px;}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
    }
    .reveal{opacity:1 !important;transform:none !important;}
    .btn:hover,.nav-pill:hover,.metric:hover,.scenario-main:hover,.scenario-item:hover,.cross-card:hover{transform:none !important;}
    .scenario-main:hover img{transform:none !important;}
  }

/* roulang page: category4 */
:root{
    --ink:#101114;
    --ink-2:#1C1E23;
    --accent:#C6F24E;
    --accent-deep:#9FD21F;
    --paper:#F5F4F0;
    --card:#FFFFFF;
    --line:#E3E1DA;
    --muted:#6E7278;
    --text:#3A3D42;
    --warm:#E8562A;
    --r-lg:24px;
    --r-md:20px;
    --r-sm:12px;
    --shadow-1:0 1px 2px rgba(16,17,20,.04);
    --shadow-2:0 18px 40px -20px rgba(16,17,20,.18);
    --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  h1,h2,h3,h4,p,figure,blockquote{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%;height:auto}
  button,input,select,textarea{font:inherit;color:inherit}
  button{background:none;border:0;cursor:pointer}
  svg{display:block}
  ::selection{background:var(--accent);color:var(--ink)}
  :focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
  body .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding-left:48px;
    padding-right:48px;
  }
  .skip-link{
    position:absolute;left:16px;top:-60px;z-index:200;
    background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;
    transition:top .2s ease;
  }
  .skip-link:focus{top:12px;color:#fff}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    padding:16px 0 0;
  }
  .nav-shell{
    display:flex;
    align-items:center;
    gap:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:12px 16px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .3s ease,padding .3s ease;
  }
  .site-header.is-scrolled .nav-shell{
    box-shadow:0 12px 30px -18px rgba(16,17,20,.28);
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:16px;
    letter-spacing:-.01em;
    color:var(--ink);
    white-space:nowrap;
  }
  .brand-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:32px;height:32px;
    border-radius:10px;
    background:var(--ink);
    color:var(--accent);
    font-size:15px;
    font-weight:800;
    line-height:1;
  }
  .nav-pills{
    display:flex;
    align-items:center;
    gap:8px;
    flex:1;
    justify-content:center;
  }
  .nav-pill{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 12px 10px;
    border:1px solid var(--line);
    border-radius:10px;
    font-size:13px;
    font-weight:500;
    color:var(--ink);
    background:var(--card);
    transition:background .25s ease,border-color .25s ease,transform .25s ease;
  }
  .nav-pill svg{
    width:16px;height:16px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.5;
    stroke-linecap:round;
    stroke-linejoin:round;
    transition:transform .3s ease;
  }
  .nav-pill:hover{background:#F1EFE8;border-color:#D6D3C9}
  .nav-pill:hover svg{transform:rotate(6deg)}
  .nav-pill.is-active{
    border-color:var(--ink);
    font-weight:700;
  }
  .nav-pill.is-active::after{
    content:"";
    position:absolute;
    left:12px;right:12px;bottom:3px;
    height:2px;
    border-radius:2px;
    background:var(--accent);
  }
  .nav-right{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-size:14px;
    font-weight:700;
    padding:11px 20px;
    border-radius:var(--r-sm);
    border:1px solid transparent;
    transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--accent);
    color:var(--ink);
    border-radius:999px;
    box-shadow:var(--shadow-1);
  }
  .btn-primary:hover{
    background:var(--accent-deep);
    transform:translateY(-2px);
    box-shadow:0 16px 28px -18px rgba(16,17,20,.5);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
  .btn-ghost{
    background:transparent;
    color:var(--ink);
    border-color:var(--ink);
    border-radius:var(--r-sm);
  }
  .btn-ghost:hover{background:var(--ink);color:#fff}
  .btn-ghost:active{transform:translateY(1px)}
  .nav-cta{font-size:13px;padding:10px 18px}
  .nav-toggle{
    display:none;
    width:42px;height:42px;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--card);
    color:var(--ink);
    transition:background .25s ease,border-color .25s ease;
  }
  .nav-toggle:hover{background:#F1EFE8;border-color:#D6D3C9}
  .nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}

  /* 移动抽屉 */
  .nav-drawer{position:fixed;inset:0;z-index:120;display:none}
  .nav-drawer.is-open{display:block}
  .drawer-backdrop{
    position:absolute;inset:0;
    background:rgba(16,17,20,.45);
    backdrop-filter:blur(3px);
  }
  .drawer-panel{
    position:absolute;
    left:16px;right:16px;top:16px;
    background:var(--card);
    border-radius:var(--r-lg);
    padding:18px;
    box-shadow:0 30px 70px -30px rgba(0,0,0,.5);
    max-height:calc(100vh - 32px);
    overflow:auto;
    animation:drawerIn .3s cubic-bezier(.2,.7,.2,1) both;
  }
  @keyframes drawerIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
  .drawer-close{
    width:40px;height:40px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:999px;
    color:var(--ink);
    background:var(--card);
  }
  .drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .drawer-link{
    display:flex;align-items:center;gap:8px;
    padding:12px;
    border:1px solid var(--line);
    border-radius:12px;
    font-size:13px;
    font-weight:500;
    color:var(--ink);
    background:var(--card);
  }
  .drawer-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
  .drawer-link.is-active{border-color:var(--ink);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent)}
  .drawer-cta{margin-top:12px;width:100%}
  body.no-scroll{overflow:hidden}

  /* ============ 通用板块 ============ */
  .section{padding:64px 0}
  .band{background:#EDEBE4}
  .sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:40px;
  }
  .sec-title{
    font-size:clamp(1.8rem,3.2vw,2.55rem);
    font-weight:800;
    line-height:1.16;
    color:var(--ink);
    letter-spacing:-.01em;
  }
  .sec-desc{
    max-width:52ch;
    font-size:15px;
    color:var(--muted);
    margin-top:12px;
  }
  .sec-link{
    font-size:13px;
    font-weight:700;
    color:var(--ink);
    padding-bottom:4px;
    background-image:linear-gradient(var(--accent),var(--accent));
    background-repeat:no-repeat;
    background-position:0 100%;
    background-size:0 2px;
    transition:background-size .3s ease;
    white-space:nowrap;
  }
  .sec-link:hover{background-size:100% 2px}

  /* ============ 页面头 ============ */
  .page-hero{padding:40px 0 0}
  .hero-grid{
    display:grid;
    grid-template-columns:1.12fr .88fr;
    gap:48px;
    align-items:end;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--muted);
    margin-bottom:18px;
  }
  .eyebrow::before{
    content:"";
    width:22px;height:2px;
    background:var(--accent);
    border-radius:2px;
  }
  .hero-h1{
    font-size:clamp(2.6rem,6vw,4.9rem);
    line-height:1.04;
    font-weight:900;
    letter-spacing:-.02em;
    color:var(--ink);
  }
  .h1-line{
    display:block;
    width:fit-content;
    padding-left:.2em;
    background-image:linear-gradient(transparent 66%,rgba(198,242,78,.9) 66%,rgba(198,242,78,.9) 90%,transparent 90%);
  }
  .hero-sub{
    margin-top:22px;
    max-width:44ch;
    font-size:16px;
    color:var(--text);
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:28px;
  }
  .anchor-bar{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:32px;
    padding-top:20px;
    border-top:1px solid var(--line);
  }
  .anchor-chip{
    font-size:13px;
    color:var(--ink);
    padding:6px 14px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--card);
    transition:border-color .25s ease,background .25s ease,transform .25s ease;
  }
  .anchor-chip:hover{border-color:var(--ink);background:#FBFAF7;transform:translateY(-1px)}
  .hero-media{
    position:relative;
    border-radius:var(--r-lg);
    overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  .hero-media img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    transition:transform .6s cubic-bezier(.2,.7,.2,1);
  }
  .hero-media:hover img{transform:scale(1.03)}
  .hero-media::after{
    content:"";
    position:absolute;inset:0;
    background:rgba(16,17,20,.08);
    pointer-events:none;
  }
  .hero-float{
    position:absolute;
    left:18px;right:18px;bottom:18px;
    z-index:2;
    background:rgba(255,255,255,.94);
    border:1px solid var(--line);
    border-radius:16px;
    padding:14px 16px;
    backdrop-filter:blur(6px);
  }
  .hero-float .badge{margin-bottom:8px}
  .hero-float p{font-size:13px;line-height:1.7;color:var(--ink);font-weight:500}
  .badge{
    display:inline-flex;
    align-items:center;
    padding:3px 10px;
    border-radius:999px;
    font-size:11px;
    font-weight:600;
    letter-spacing:.02em;
    color:var(--warm);
    background:rgba(232,86,42,.12);
  }
  .stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    margin-top:48px;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .stat{
    padding:22px 0 22px 22px;
    border-left:1px solid var(--line);
  }
  .stat:first-child{border-left:0;padding-left:0}
  .stat-num{
    font-family:var(--font-mono);
    font-size:26px;
    font-weight:800;
    line-height:1.1;
    color:var(--ink);
    transition:color .25s ease;
  }
  .stat:hover .stat-num{color:var(--accent-deep)}
  .stat-label{
    display:block;
    margin-top:6px;
    font-size:12px;
    color:var(--muted);
    letter-spacing:.02em;
  }

  /* ============ 时间轴 ============ */
  .timeline{
    position:relative;
    display:flex;
    flex-direction:column;
    gap:26px;
    padding-left:4px;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:12px;top:14px;bottom:14px;
    width:1px;
    background:var(--line);
  }
  .tl-item{
    position:relative;
    padding-left:48px;
  }
  .tl-dot{
    position:absolute;
    left:4px;top:26px;
    width:17px;height:17px;
    border-radius:50%;
    background:var(--accent);
    border:3px solid var(--paper);
    box-shadow:0 0 0 1px rgba(16,17,20,.16);
  }
  .tl-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:24px 28px;
    transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
  }
  .tl-card:hover{
    border-color:var(--ink);
    transform:translateY(-2px);
    box-shadow:var(--shadow-2);
  }
  .tl-meta{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    margin-bottom:10px;
  }
  .tl-date{
    font-family:var(--font-mono);
    font-size:13px;
    color:var(--muted);
    letter-spacing:.02em;
  }
  .tl-title{
    font-size:20px;
    font-weight:700;
    line-height:1.4;
    color:var(--ink);
  }
  .tl-text{
    margin-top:8px;
    font-size:15px;
    line-height:1.8;
    color:var(--text);
    max-width:74ch;
  }

  /* ============ 三个看点 ============ */
  .hl-grid{
    display:grid;
    grid-template-columns:1.35fr 1fr;
    gap:24px;
    align-items:stretch;
  }
  .hl-main{
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    overflow:hidden;
    transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
  }
  .hl-main:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .hl-main img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    transition:transform .5s ease;
  }
  .hl-main:hover img{transform:scale(1.03)}
  .hl-body{padding:26px 28px 30px}
  .hl-body h3{font-size:21px;font-weight:700;color:var(--ink);line-height:1.4}
  .hl-body p{margin-top:10px;font-size:15px;color:var(--text)}
  .hl-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
  .hl-mini{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:24px 26px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
  }
  .hl-mini:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .hl-num{
    font-family:var(--font-mono);
    font-size:13px;
    font-weight:700;
    color:var(--accent-deep);
    letter-spacing:.08em;
  }
  .hl-mini h3{margin-top:8px;font-size:18px;font-weight:700;color:var(--ink);line-height:1.4}
  .hl-mini p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

  /* ============ 流程 ============ */
  .flow-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:28px;
  }
  .flow-item{
    border-top:2px solid var(--ink);
    padding-top:20px;
    transition:border-color .3s ease;
  }
  .flow-item:hover{border-color:var(--accent-deep)}
  .flow-num{
    font-family:var(--font-mono);
    font-size:34px;
    font-weight:800;
    line-height:1;
    color:var(--ink);
  }
  .flow-item h3{margin-top:14px;font-size:17px;font-weight:700;color:var(--ink)}
  .flow-item p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

  /* ============ FAQ ============ */
  .faq{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--line)}
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    cursor:pointer;
    font-size:16px;
    font-weight:700;
    color:var(--ink);
    list-style:none;
    transition:background .25s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:#FBFAF7}
  .faq-item summary::after{
    content:"+";
    font-size:20px;
    line-height:1;
    color:var(--muted);
    transition:transform .24s ease,color .24s ease;
    flex-shrink:0;
  }
  .faq-item[open] summary::after{transform:rotate(45deg);color:var(--ink)}
  .faq-a{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.8;
    color:var(--text);
    max-width:76ch;
  }

  /* ============ 交叉入口 ============ */
  .cross-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
  }
  .cross-card{
    display:grid;
    grid-template-columns:84px 1fr 22px;
    gap:16px;
    align-items:center;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:18px;
    padding:14px 18px 14px 14px;
    transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
  }
  .cross-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .cross-card img{
    width:84px;
    aspect-ratio:1;
    object-fit:cover;
    border-radius:12px;
  }
  .cross-card h3{font-size:16px;font-weight:700;color:var(--ink)}
  .cross-card p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:2px}
  .cross-arrow{
    width:20px;height:20px;
    fill:none;
    stroke:var(--ink);
    stroke-width:1.5;
    stroke-linecap:round;
    stroke-linejoin:round;
    transition:transform .25s ease;
  }
  .cross-card:hover .cross-arrow{transform:translateX(4px)}
  .cross-card.is-current{border-color:var(--ink);box-shadow:inset 0 -2px 0 var(--accent)}
  .cross-current-tag{
    display:inline-block;
    margin-top:6px;
    font-size:11px;
    font-weight:600;
    color:var(--warm);
  }

  /* ============ CTA ============ */
  .cta-band{
    position:relative;
    overflow:hidden;
    background:var(--ink);
    color:#fff;
    border-radius:var(--r-lg);
    padding:52px;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:40px;
    align-items:center;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    left:0;top:0;bottom:0;
    width:4px;
    background:var(--accent);
  }
  .cta-band h2{
    font-size:clamp(1.7rem,3vw,2.3rem);
    font-weight:800;
    line-height:1.2;
    letter-spacing:-.01em;
  }
  .cta-band p{
    margin-top:12px;
    font-size:14px;
    line-height:1.8;
    color:rgba(255,255,255,.66);
    max-width:42ch;
  }
  .sub-form{
    display:flex;
    gap:10px;
    align-items:stretch;
  }
  .sub-input{
    flex:1;
    min-width:0;
    background:transparent;
    border:1px solid rgba(255,255,255,.25);
    border-radius:12px;
    padding:13px 16px;
    color:#fff;
    font-size:14px;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .sub-input::placeholder{color:rgba(255,255,255,.45)}
  .sub-input:focus{
    border-color:var(--accent);
    outline:none;
    box-shadow:0 0 0 3px rgba(198,242,78,.18);
  }
  .sub-form .btn-primary{padding:13px 22px}
  .form-hint{
    margin-top:10px;
    font-size:12px;
    color:rgba(255,255,255,.55);
    line-height:1.7;
  }
  .form-error{
    display:none;
    margin-top:6px;
    font-size:12px;
    color:#FF9C7A;
  }
  .sub-form.has-error .form-error{display:block}
  .sub-form.has-error .sub-input{border-color:#FF9C7A}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:96px;
    background:var(--ink);
    color:#fff;
    padding:64px 0 24px;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.35fr;
    gap:40px;
  }
  .foot-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:800;
    color:#fff;
    letter-spacing:-.01em;
  }
  .foot-brand .brand-mark{
    background:var(--accent);
    color:var(--ink);
  }
  .foot-desc{
    margin-top:14px;
    font-size:13px;
    line-height:1.9;
    color:rgba(255,255,255,.6);
    max-width:32ch;
  }
  .foot-title{
    font-size:12px;
    font-weight:600;
    letter-spacing:.12em;
    color:rgba(255,255,255,.45);
    margin-bottom:14px;
  }
  .foot-links li,
  .foot-contact li{
    font-size:13px;
    line-height:2;
    color:rgba(255,255,255,.75);
  }
  .foot-links a{transition:color .25s ease}
  .foot-links a:hover{color:var(--accent)}
  .foot-contact li + li{margin-top:6px}
  .foot-contact strong{
    display:inline-block;
    color:#fff;
    font-weight:600;
    margin-right:8px;
  }
  .foot-bottom{
    margin-top:44px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:12px;
    color:rgba(255,255,255,.5);
  }

  /* ============ 入场动效 ============ */
  .reveal{animation:rise .6s cubic-bezier(.2,.7,.2,1) both;animation-delay:var(--d,0s)}
  @keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *{animation:none !important;transition:none !important}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1080px){
    .nav-pills,
    .nav-cta{display:none}
    .nav-toggle{display:inline-flex}
    .nav-shell{justify-content:space-between}
  }
  @media (max-width:1024px){
    body .container{padding-left:32px;padding-right:32px}
    .section{padding:52px 0}
    .hero-grid{grid-template-columns:1fr;gap:32px;align-items:start}
    .hero-media{max-width:640px}
    .hero-h1{font-size:clamp(2.4rem,7vw,3.6rem)}
    .stats{grid-template-columns:1fr 1fr}
    .stat:nth-child(3){border-left:0;padding-left:0}
    .stat{border-top:1px solid var(--line)}
    .stat:nth-child(1),.stat:nth-child(2){border-top:0}
    .hl-grid{grid-template-columns:1fr}
    .hl-side{grid-template-rows:auto auto;grid-template-columns:1fr 1fr}
    .flow-grid{grid-template-columns:1fr 1fr}
    .cta-band{grid-template-columns:1fr;padding:36px 32px;gap:28px}
    .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
    .site-footer{margin-top:72px}
  }
  @media (max-width:768px){
    .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
    .cross-grid{grid-template-columns:1fr}
    .hl-side{grid-template-columns:1fr}
    .tl-card{padding:20px 22px}
    .tl-title{font-size:18px}
    .tl-item{padding-left:40px}
    .cta-band{padding:30px 24px}
    .sub-form{flex-direction:column}
    .sub-form .btn-primary{width:100%}
  }
  @media (max-width:520px){
    body .container{padding-left:20px;padding-right:20px}
    .site-header{padding-top:10px}
    .nav-shell{padding:10px 12px;border-radius:20px;gap:10px}
    .brand{font-size:15px}
    .brand-mark{width:28px;height:28px;border-radius:9px;font-size:13px}
    .section{padding:40px 0}
    .page-hero{padding-top:28px}
    .hero-actions .btn{width:100%}
    .stats{margin-top:32px}
    .stat{padding:16px 0 16px 16px}
    .stat-num{font-size:22px}
    .flow-grid{grid-template-columns:1fr;gap:22px}
    .timeline::before{left:8px}
    .tl-dot{left:0;width:15px;height:15px}
    .tl-item{padding-left:32px}
    .tl-card{padding:18px}
    .cross-card{grid-template-columns:68px 1fr 20px;padding:12px}
    .cross-card img{width:68px}
    .drawer-grid{grid-template-columns:1fr}
    .faq-item summary{padding:16px 18px;font-size:15px}
    .faq-a{padding:0 18px 18px;font-size:14px}
    .foot-grid{grid-template-columns:1fr;gap:28px}
    .foot-bottom{flex-direction:column;gap:8px}
  }