/* roulang page: index */
:root{
  --brand:#FF6A2B;
  --brand-dark:#E4531A;
  --brand-tint:#FFB27A;
  --neon:#1FE0B0;
  --neon-dark:#0FB98F;
  --violet:#6B3BFF;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF3D7F 50%,#6B3BFF 100%);
  --deep:#140E1A;
  --deep-2:#1C1327;
  --warm:#F7F5F2;
  --card:#FFFFFF;
  --ink:#17121D;
  --ink-soft:#5B5566;
  --ink-faint:#8C8794;
  --line:rgba(23,18,29,.08);
  --line-deep:rgba(255,255,255,.14);
  --radius-xl:26px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 10px 30px -14px rgba(23,18,29,.20), 0 2px 6px rgba(255,106,43,.06);
  --shadow-hover:0 24px 46px -20px rgba(23,18,29,.30), 0 4px 14px rgba(255,106,43,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--warm);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:-0.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.wrap{padding:0 24px}}
.section{padding:96px 0}
.section-tight{padding:72px 0}
@media (max-width:1023px){.section{padding:74px 0}.section-tight{padding:56px 0}}
@media (max-width:639px){.section{padding:58px 0}.section-tight{padding:46px 0}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,242,.9);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -24px rgba(23,18,29,.5);background:rgba(247,245,242,.96)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
@media (min-width:1024px){.nav-inner{height:72px}}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background-image:var(--grad);color:#fff;font-size:17px;
  box-shadow:0 10px 22px -12px rgba(255,61,127,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-0.01em}
.brand-sub{font-size:11px;color:var(--ink-faint);letter-spacing:.12em}
@media (max-width:520px){.brand-sub{display:none}.brand-name{font-size:15.5px}}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:9px 16px;border-radius:12px;font-size:15px;font-weight:600;
  color:var(--ink-soft);transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(255,106,43,.09)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:999px;background-image:var(--grad);
}
.nav-cta{display:flex;align-items:center;gap:10px}
@media (max-width:1023px){.nav-links,.nav-cta{display:none}}
.menu-btn{
  width:44px;height:44px;border-radius:13px;border:1px solid var(--line);
  background:#fff;color:var(--ink);display:grid;place-items:center;font-size:17px;
  transition:border-color .2s ease,color .2s ease;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
@media (min-width:1024px){.menu-btn{display:none}}
.mobile-drawer{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.22,1,.36,1);border-top:1px solid transparent}
.mobile-drawer.is-open{max-height:460px;border-top-color:var(--line)}
.drawer-inner{padding:16px 20px 24px;display:flex;flex-direction:column;gap:10px}
.drawer-link{padding:13px 16px;border-radius:14px;background:#fff;border:1px solid var(--line);font-weight:700;color:var(--ink)}
.drawer-link:hover{border-color:var(--brand);color:var(--brand)}
.drawer-cta{display:flex;flex-direction:column;gap:10px;margin-top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:14px;font-weight:700;font-size:15px;
  border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:13px}
.btn:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:0 14px 26px -16px rgba(255,61,127,.85)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 32px -16px rgba(255,61,127,.9)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(255,106,43,.1);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-outline-light{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.04)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-ghost{color:var(--ink-soft);padding:0 8px}
.btn-ghost:hover{color:var(--brand)}
.btn-lg{height:54px;padding:0 30px;font-size:16px;border-radius:16px}
.btn[disabled],.btn.is-disabled{filter:grayscale(.5);opacity:.6;pointer-events:none}
@media (max-width:520px){.btn-lg{width:100%}}

/* ---------- chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:700;background:rgba(255,106,43,.1);color:var(--brand-dark);
}
.chip-neon{background:rgba(31,224,176,.14);color:var(--neon-dark)}
.chip-mute{background:rgba(23,18,29,.06);color:var(--ink-soft)}
.chip-glass{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.18);
}
.eyebrow-dark{background:rgba(255,106,43,.1);color:var(--brand-dark);border-color:rgba(255,106,43,.18)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--deep);color:#fff;display:flex;align-items:center;min-height:620px;padding:118px 0 96px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-mask{position:absolute;inset:0;background:linear-gradient(118deg,rgba(20,14,26,.95) 0%,rgba(20,14,26,.8) 46%,rgba(107,59,255,.38) 100%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:26px 26px;pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero h1{font-size:clamp(28px,4.2vw,46px);margin:22px 0 0;max-width:15em}
.hero-sub{margin-top:20px;font-size:17px;color:rgba(255,255,255,.76);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
@media (max-width:768px){
  .hero{min-height:480px;padding:78px 0 66px}
  .hero-sub{font-size:16px}
  .hero-actions{margin-top:26px}
}
.stat-badge{
  position:relative;border-radius:22px;padding:20px 20px 18px;
  background:rgba(255,255,255,.07);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.12);
}
.stat-badge::before{
  content:"";position:absolute;inset:0;border-radius:22px;padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:.55;pointer-events:none;
}
.stat-key{font-size:24px;font-weight:800;letter-spacing:0.02em}
.stat-label{margin-top:6px;font-size:13px;color:rgba(255,255,255,.68);line-height:1.6}

/* ---------- cards ---------- */
.card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-xl);box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.28)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#FFE7D6,#EFE7FF)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-title{font-size:19px;font-weight:800;line-height:1.45}
.card-desc{margin-top:10px;color:var(--ink-soft);font-size:15px}
.tag-media{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;background:rgba(20,14,26,.72);color:#fff;backdrop-filter:blur(6px);
}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.clamp-4{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px}
.card:hover .link-more{gap:10px}

/* ---------- feature rows ---------- */
.feature-row{display:grid;gap:42px;align-items:center}
@media (min-width:1024px){.feature-row{grid-template-columns:1fr 1fr;gap:64px}.feature-row.reverse .feature-media{order:2}}
.feature-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;aspect-ratio:16/11;box-shadow:var(--shadow-card)}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(255,106,43,.16),rgba(107,59,255,.22))}
.feature-index{font-size:13px;font-weight:800;letter-spacing:.2em;color:var(--brand)}
.feature-title{font-size:clamp(22px,2.4vw,30px);margin-top:12px}
.feature-text{margin-top:16px;color:var(--ink-soft);max-width:660px}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-soft)}
.point-list i{color:var(--neon-dark);margin-top:6px;font-size:13px}

/* ---------- reward strip ---------- */
.strip{display:flex;gap:22px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.strip::-webkit-scrollbar{height:6px}
.strip::-webkit-scrollbar-thumb{background:rgba(23,18,29,.16);border-radius:999px}
.strip .reward-card{flex:0 0 300px;scroll-snap-align:start}
@media (min-width:1024px){.strip{display:grid;grid-template-columns:repeat(4,1fr);overflow:visible;padding-bottom:0}.strip .reward-card{flex:auto}}
.reward-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);transition:transform .28s ease,box-shadow .28s ease;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.reward-badge{
  position:absolute;right:12px;top:12px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:800;color:#fff;background-image:var(--grad);
}

/* ---------- task progress ---------- */
.deep-block{background:var(--deep);color:#fff;position:relative;overflow:hidden}
.deep-block::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.deep-block::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,59,255,.4),transparent 68%);
}
.deep-inner{position:relative;z-index:2}
.task-list{margin-top:38px;display:flex;flex-direction:column;gap:16px}
.task-track{
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:center;
  padding:18px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.05);border:1px solid var(--line-deep);
  transition:border-color .3s ease,background .3s ease;
}
.task-track:hover{border-color:rgba(31,224,176,.42);background:rgba(255,255,255,.075)}
.task-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgba(255,106,43,.16);color:var(--brand-tint);font-size:16px}
.task-head{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.task-name{font-weight:700;font-size:15.5px}
.task-status{font-size:12.5px;padding:4px 12px;border-radius:999px;font-weight:700}
.status-done{background:rgba(31,224,176,.16);color:var(--neon)}
.status-doing{background:rgba(255,106,43,.18);color:var(--brand-tint)}
.status-idle{background:rgba(255,255,255,.1);color:rgba(255,255,255,.6)}
.task-bar{height:10px;border-radius:999px;background:rgba(255,255,255,.13);overflow:hidden;margin-top:12px}
.task-fill{height:100%;width:0;border-radius:999px;background-image:var(--grad);transition:width 1s cubic-bezier(.22,1,.36,1)}
.task-track.is-inview .task-fill{width:var(--w)}
.task-pct{margin-top:8px;font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;color:rgba(255,255,255,.72)}
.status-done + .task-pct{color:var(--neon)}

/* ---------- news ---------- */
.news-mini{display:flex;gap:16px;padding:16px;align-items:stretch}
.news-mini .thumb{width:96px;flex:0 0 96px;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,#FFE7D6,#EFE7FF)}
.news-mini .thumb img{width:100%;height:100%;object-fit:cover}
@media (min-width:640px){.news-mini .thumb{width:116px;flex-basis:116px}}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-faint)}
.empty-state{
  border:1px dashed rgba(23,18,29,.16);border-radius:var(--radius-xl);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;display:grid;place-items:center;
  background:rgba(255,106,43,.1);color:var(--brand);font-size:22px;
}
.empty-state p{color:var(--ink-soft);margin-bottom:22px}

/* ---------- social proof ---------- */
.proof-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.proof-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.proof-grid{grid-template-columns:repeat(3,1fr)}}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:26px;box-shadow:var(--shadow-card);transition:transform .28s ease}
.quote-card:hover{transform:translateY(-4px)}
.quote-text{font-size:15.5px;color:var(--ink-soft)}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:20px}
.avatar{width:42px;height:42px;border-radius:999px;display:grid;place-items:center;font-weight:800;color:#fff;background-image:var(--grad);font-size:15px}
.avatar.alt{background-image:linear-gradient(135deg,#1FE0B0,#0FB98F)}
.avatar.alt2{background-image:linear-gradient(135deg,#6B3BFF,#FF3D7F)}
.quote-name{font-size:14px;font-weight:700}
.quote-role{font-size:12.5px;color:var(--ink-faint)}
.metric-band{display:grid;gap:18px;grid-template-columns:1fr;margin-top:34px}
@media (min-width:640px){.metric-band{grid-template-columns:repeat(3,1fr)}}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;
  box-shadow:var(--shadow-card);
}
.metric-num{font-size:28px;font-weight:800;font-variant-numeric:tabular-nums;background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric-label{margin-top:6px;font-size:14px;color:var(--ink-soft)}

/* ---------- faq ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .25s ease}
.faq-item + .faq-item{margin-top:14px}
.faq-item[open]{border-color:rgba(255,106,43,.3)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-weight:700;font-size:16px;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  width:30px;height:30px;flex:0 0 30px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,106,43,.1);color:var(--brand);font-size:13px;transition:transform .3s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 24px 24px;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:18px;margin:0 24px 24px;padding-left:0;padding-right:0}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  background:var(--deep);color:#fff;padding:56px 40px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,106,43,.4),rgba(107,59,255,.42));
  opacity:.85;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,176,.4),transparent 70%);
}
.cta-inner{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3vw,34px)}
.cta-band p{margin:16px auto 30px;max-width:620px;color:rgba(255,255,255,.78)}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media (max-width:639px){.cta-band{padding:44px 22px}}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:72px 0 30px;margin-top:0}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr}}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-title{font-size:17px;font-weight:800;color:#fff}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-head{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em}
.footer-links{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--brand-tint)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-deep);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom strong{color:rgba(255,255,255,.74);font-weight:700}
@media (max-width:639px){.site-footer{padding:56px 0 26px}}

/* roulang page: article */
:root{
  --orange:#FF6A2B;
  --orange-dark:#E4531A;
  --orange-tint:#FFB27A;
  --teal:#1FE0B0;
  --teal-dark:#0FB98F;
  --violet:#6B3BFF;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF3D7F 52%,#6B3BFF 100%);
  --ink:#17121D;
  --ink-2:#5B5566;
  --ink-3:#8C8794;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --deep:#140E1A;
  --deep-2:#1C1327;
  --line:rgba(23,18,29,.08);
  --line-deep:rgba(255,255,255,.14);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 8px 24px rgba(23,18,29,.055),0 2px 8px rgba(255,106,43,.06);
  --shadow-hover:0 18px 42px rgba(23,18,29,.10),0 6px 16px rgba(255,106,43,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,242,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 10px 30px rgba(23,18,29,.08)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;white-space:nowrap;color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:15px;
  box-shadow:0 6px 16px rgba(255,106,43,.35);flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:12px;
  font-size:15.5px;font-weight:600;color:var(--ink-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--orange-dark);background:rgba(255,106,43,.08)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink)}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
.nav-toggle:hover{border-color:rgba(255,106,43,.45);box-shadow:0 6px 16px rgba(255,106,43,.14)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 22px 40px rgba(23,18,29,.12);
  padding:16px 24px 24px;
}
.nav-drawer.is-open{display:block}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover{color:var(--orange);padding-left:10px}
.drawer-cta{margin-top:16px;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:14px;font-weight:700;font-size:15px;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,61,127,.26)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 16px 32px rgba(255,61,127,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:rgba(255,106,43,.45);color:var(--orange-dark);background:#fff}
.btn-outline:hover{background:rgba(255,106,43,.09);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-light{border-color:rgba(255,255,255,.38);color:#fff;background:transparent}
.btn-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:999px}
.btn[disabled],.btn.is-disabled{opacity:.5;filter:saturate(.4);pointer-events:none;transform:none}

/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;background:var(--deep);padding:46px 0 58px}
.article-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(20,14,26,.94) 0%,rgba(28,19,39,.8) 55%,rgba(107,59,255,.42) 100%);
}
.article-hero-inner{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.74);transition:color .2s ease}
.crumb a:hover{color:var(--teal)}
.crumb-sep{color:rgba(255,255,255,.35)}
.crumb-cur{color:rgba(255,255,255,.92);font-weight:600}
.article-title{
  font-size:clamp(28px,4vw,44px);line-height:1.3;font-weight:800;letter-spacing:-.01em;
  color:#fff;margin:0 0 22px;max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:rgba(255,255,255,.7)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:13px;font-weight:700;color:var(--teal);
  background:rgba(31,224,176,.12);border:1px solid rgba(31,224,176,.34);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4)}

/* ============ 正文 ============ */
.article-main{padding:60px 0 0}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:52px 56px;max-width:940px;margin:0 auto;
}
.article-lead{
  max-width:780px;margin:0 auto 34px;padding:18px 22px;border-radius:16px;
  background:rgba(255,106,43,.06);border-left:4px solid var(--orange);
  color:var(--ink-2);font-size:15.5px;line-height:1.8;
}
.article-body{max-width:780px;margin:0 auto;font-size:16.8px;line-height:1.85;color:#292330;word-break:break-word}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:26px;font-weight:800;line-height:1.45;letter-spacing:-.01em;
  margin:44px 0 16px;padding-left:18px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:32px 0 12px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:700;margin:24px 0 10px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body li{margin-bottom:10px}
.article-body li::marker{color:var(--orange)}
.article-body a{color:var(--orange-dark);font-weight:600;border-bottom:1px solid rgba(255,106,43,.35)}
.article-body a:hover{color:var(--violet);border-bottom-color:rgba(107,59,255,.45)}
.article-body img{border-radius:18px;margin:26px auto;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;background:rgba(255,106,43,.055);
  border-left:4px solid var(--orange);border-radius:0 16px 16px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body pre{
  background:var(--deep);color:#EDE9F2;border-radius:18px;padding:20px 22px;
  overflow-x:auto;font-size:14.5px;line-height:1.7;margin:26px 0;
  font-variant-numeric:tabular-nums;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-radius:16px;overflow:hidden}
.article-body th{background:rgba(23,18,29,.05);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body hr{border:none;height:1px;background:var(--line);margin:36px 0}
.article-body strong{font-weight:700;color:var(--ink)}
.article-empty{
  max-width:780px;margin:0 auto;text-align:center;padding:56px 24px;
}
.article-empty .empty-icon{
  width:76px;height:76px;border-radius:24px;margin:0 auto 20px;display:grid;place-items:center;
  background:rgba(255,106,43,.1);color:var(--orange);font-size:28px;
}
.article-empty h2{font-size:22px;font-weight:800;margin:0 0 10px;color:var(--ink)}
.article-empty p{color:var(--ink-2);margin:0 0 22px}

.article-foot{
  max-width:940px;margin:0 auto;padding:30px 0 0;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.foot-note{font-size:14px;color:var(--ink-3)}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--orange-dark);
  background:rgba(255,106,43,.1);margin-bottom:16px;
}
.section-title{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.01em;line-height:1.4;margin:0 0 14px;color:var(--ink)}
.section-sub{color:var(--ink-2);font-size:16px;margin:0;max-width:720px}

/* ============ 相关阅读 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.24)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#FFE3D2,#E8E3F8)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-tag{
  align-self:flex-start;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:var(--orange-dark);background:rgba(255,106,43,.1);
}
.rel-title{
  font-size:17px;font-weight:700;line-height:1.55;color:var(--ink);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{margin-top:auto;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}

/* ============ CTA 尾条 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--deep-2);padding:64px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;
}
.cta-band::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;border-radius:50%;
  background:var(--grad);opacity:.18;filter:blur(70px);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-title{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:#fff;margin:0 0 10px;letter-spacing:-.01em}
.cta-sub{color:rgba(255,255,255,.72);margin:0;max-width:560px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{position:relative;overflow:hidden;background:var(--deep);color:rgba(255,255,255,.72);padding:76px 0 0}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-title{color:#fff;font-weight:800;font-size:18px;letter-spacing:-.01em}
.footer-desc{margin:0;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:420px}
.footer-head{color:#fff;font-weight:700;font-size:15px;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px;font-size:14.5px}
.footer-links a{color:rgba(255,255,255,.66);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--teal);transform:translateX(4px)}
.footer-bottom{
  position:relative;z-index:2;margin-top:52px;padding:24px 0;
  border-top:1px solid var(--line-deep);display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom strong{color:rgba(255,255,255,.8);font-weight:700}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;width:48px;height:48px;border-radius:16px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
  box-shadow:var(--shadow);display:grid;place-items:center;opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease,transform .3s ease;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);color:var(--orange);box-shadow:var(--shadow-hover)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .wrap{padding:0 24px}
}
@media (max-width:1023px){
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .section{padding:70px 0}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-card{padding:40px 34px}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .wrap{padding:0 20px}
  .header-inner{height:64px}
  .brand{font-size:16.5px}
  .brand-mark{width:30px;height:30px;font-size:13px;border-radius:10px}
  .article-hero{padding:32px 0 42px}
  .article-main{padding:40px 0 0}
  .article-card{padding:30px 20px;border-radius:20px}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .article-body pre{font-size:13.5px;padding:16px}
  .section{padding:56px 0}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:52px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .site-footer{padding-top:56px}
}
@media (max-width:520px){
  .article-title{font-size:26px}
  .article-meta{font-size:13px;gap:8px 12px}
  .foot-actions{width:100%}
  .foot-actions .btn{flex:1}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A2B;
  --brand-dark:#E4531A;
  --brand-tint:#FFB27A;
  --mint:#1FE0B0;
  --mint-dark:#0FB98F;
  --violet:#6B3BFF;
  --ink:#17121D;
  --ink-2:#5B5566;
  --ink-3:#8C8794;
  --paper:#F7F5F2;
  --card:#FFFFFF;
  --line:rgba(23,18,29,.08);
  --line-dark:rgba(255,255,255,.14);
  --deep:#140E1A;
  --deep-2:#1C1327;
  --grad:linear-gradient(135deg,#FF6A2B 0%,#FF3D7F 52%,#6B3BFF 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-card:0 12px 30px rgba(23,18,29,.06), 0 2px 8px rgba(255,106,43,.05);
  --shadow-card-hover:0 20px 44px rgba(23,18,29,.10), 0 4px 12px rgba(255,106,43,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.32;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:8px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-weight:800}
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:768px){
  body{font-size:16px;line-height:1.82}
  .wrap{padding:0 20px}
  .section{padding:60px 0}
  .section-tight{padding:44px 0}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,242,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(23,18,29,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  background:var(--grad);color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 8px 18px rgba(255,61,127,.3);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-link{
  position:relative;padding:9px 15px;border-radius:10px;font-size:15px;font-weight:500;
  color:var(--ink-2);transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(255,106,43,.09)}
.nav-link.is-active{color:var(--brand-dark);font-weight:800}
.nav-link.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:1px;height:3px;border-radius:3px;background:var(--grad);
}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand-dark)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.mobile-drawer.is-open{display:block}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:14px;font-size:16px;font-weight:600;color:var(--ink-2);
}
.drawer-link.is-active{background:rgba(255,106,43,.1);color:var(--brand-dark)}
.drawer-link:hover{background:rgba(255,106,43,.08);color:var(--ink)}
@media (max-width:960px){
  .nav-links{display:none}
  .header-cta .btn{display:none}
  .menu-btn{display:flex}
  .header-inner{height:64px;gap:12px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;white-space:nowrap;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,61,127,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,61,127,.32)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:var(--brand);color:var(--brand-dark);background:transparent}
.btn-outline:hover{background:rgba(255,106,43,.1);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{color:var(--ink-2);background:transparent}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- chips & badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.5;
}
.chip-soft{background:rgba(255,106,43,.1);color:var(--brand-dark)}
.chip-mint{background:rgba(31,224,176,.14);color:var(--mint-dark)}
.chip-violet{background:rgba(107,59,255,.1);color:var(--violet)}
.chip-neutral{background:rgba(23,18,29,.05);color:var(--ink-2)}
.chip-on-dark{background:rgba(255,255,255,.1);color:rgba(255,255,255,.88);border:1px solid var(--line-dark)}
.status{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px}
.status-live{background:rgba(31,224,176,.16);color:var(--mint-dark)}
.status-soon{background:rgba(255,106,43,.13);color:var(--brand-dark)}
.status-done{background:rgba(23,18,29,.06);color:var(--ink-3)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- hero (深底 KV) ---------- */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--deep);
  background-image:
    linear-gradient(120deg,rgba(20,14,26,.94) 0%,rgba(20,14,26,.78) 46%,rgba(28,19,39,.62) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:
    linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,59,255,.38) 0%,rgba(107,59,255,0) 68%);pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.45fr .85fr;gap:48px;align-items:center;
  padding:64px 0 68px;
}
.hero-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px}
.hero-crumb a{color:rgba(255,255,255,.72)}
.hero-crumb a:hover{color:#fff;text-decoration:underline}
.hero-title{font-size:46px;line-height:1.2;color:#fff}
.hero-title .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;max-width:640px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.76)}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:grid;gap:14px}
.stat-card{
  position:relative;border-radius:var(--r-md);padding:18px 20px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(6px);
}
.stat-card::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--grad);
}
.stat-num{font-size:30px;color:#fff;font-variant-numeric:tabular-nums}
.stat-num small{font-size:15px;font-weight:700;margin-left:2px;color:rgba(255,255,255,.7)}
.stat-label{margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.66)}
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:46px 0 52px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-badges{grid-template-columns:1fr 1fr;display:grid}
  .cat-hero{min-height:auto}
}
@media (max-width:520px){
  .hero-title{font-size:28px}
  .hero-actions .btn{width:100%}
  .hero-badges{grid-template-columns:1fr}
}

/* ---------- section headings ---------- */
.sec-head{max-width:780px;margin-bottom:44px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--brand-dark);text-transform:uppercase;margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad)}
.sec-title{font-size:32px}
.sec-desc{margin-top:14px;font-size:16.5px;color:var(--ink-2)}
@media (max-width:768px){
  .sec-title{font-size:23px}
  .sec-desc{font-size:16px}
  .sec-head{margin-bottom:30px}
}

/* ---------- long cards (分类页1 主体) ---------- */
.long-list{display:grid;gap:32px}
.long-card{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.long-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.long-card.is-rev .lc-media{order:2}
.lc-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;
  background:linear-gradient(135deg,rgba(255,106,43,.16),rgba(107,59,255,.16));
}
.lc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.long-card:hover .lc-media img{transform:scale(1.03)}
.lc-index{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(20,14,26,.62);color:#fff;font-size:12.5px;font-weight:700;backdrop-filter:blur(6px);
}
.lc-body h2{font-size:23px}
.lc-body p{margin-top:14px;color:var(--ink-2);max-width:520px}
.lc-list{margin-top:18px;display:grid;gap:10px}
.lc-list li{display:flex;gap:10px;font-size:15.5px;color:var(--ink-2)}
.lc-list i{color:var(--mint-dark);margin-top:5px;font-size:13px}
.lc-tags{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:900px){
  .long-card{grid-template-columns:1fr;gap:24px;padding:20px}
  .long-card.is-rev .lc-media{order:0}
  .lc-body h2{font-size:20px}
}

/* ---------- stats band ---------- */
.stats-band{
  position:relative;overflow:hidden;color:#fff;border-radius:var(--r-lg);
  background:linear-gradient(135deg,#140E1A 0%,#1C1327 58%,#241735 100%);
  padding:44px 40px;
}
.stats-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.28) 0%,rgba(255,106,43,0) 70%);
}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stats-item{border-left:2px solid rgba(255,255,255,.14);padding-left:18px}
.stats-item:first-child{border-left:0;padding-left:0}
.stats-num{font-size:32px;color:#fff;font-variant-numeric:tabular-nums}
.stats-num small{font-size:15px;font-weight:700;color:rgba(255,255,255,.68);margin-left:2px}
.stats-label{margin-top:6px;font-size:14px;color:rgba(255,255,255,.66)}
@media (max-width:900px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 20px}
  .stats-item{border-left:0;padding-left:0}
  .stats-band{padding:32px 24px}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr}
  .stats-num{font-size:26px}
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);color:#fff;
  background-image:
    linear-gradient(115deg,rgba(20,14,26,.93) 0%,rgba(28,19,39,.86) 55%,rgba(107,59,255,.55) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;color:#fff}
.cta-band p{margin-top:12px;max-width:560px;color:rgba(255,255,255,.76);font-size:16px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.22)}
.btn-white-outline{border-color:rgba(255,255,255,.5);color:#fff}
.btn-white-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
@media (max-width:768px){
  .cta-band{padding:32px 24px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:4px 22px;box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(255,106,43,.35);box-shadow:var(--shadow-card-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,106,43,.1);color:var(--brand-dark);font-size:14px;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--grad);color:#fff}
.faq-answer{
  padding:2px 0 20px;margin-top:-2px;border-top:1px solid var(--line);
  font-size:15.8px;color:var(--ink-2);
}
.faq-answer p{padding-top:16px}

/* ---------- note strip ---------- */
.note-strip{
  display:flex;align-items:flex-start;gap:14px;padding:18px 22px;border-radius:var(--r-md);
  background:rgba(31,224,176,.1);border:1px solid rgba(31,224,176,.32);color:var(--ink-2);font-size:15.5px;
}
.note-strip i{color:var(--mint-dark);margin-top:4px}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#fff;margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-title{font-size:18px;font-weight:800;color:#fff}
.footer-desc{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.66);max-width:380px}
.footer-head{font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.5);margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,.78);font-size:15px;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);padding:22px 0 34px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
@media (max-width:1024px){ .footer-grid{grid-template-columns:1fr 1fr;gap:32px} }
@media (max-width:640px){
  .site-footer{margin-top:64px;padding-top:52px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
    --brand:#FF6A2B; --brand-dark:#E4531A; --brand-tint:#FFB27A;
    --accent:#1FE0B0; --accent-dark:#0FB98F; --violet:#6B3BFF;
    --ink:#17121D; --ink-2:#5B5566; --ink-3:#8C8794;
    --paper:#F7F5F2; --card:#FFFFFF;
    --line:rgba(23,18,29,.08); --line-strong:rgba(23,18,29,.14);
    --deep:#140E1A; --deep-2:#1C1327;
    --grad:linear-gradient(135deg,#FF6A2B 0%,#FF3D7F 52%,#6B3BFF 100%);
    --grad-soft:linear-gradient(135deg,rgba(255,106,43,.12),rgba(107,59,255,.10));
    --radius-lg:26px; --radius-md:20px; --radius-sm:14px;
    --shadow-1:0 10px 30px rgba(23,18,29,.06), 0 2px 10px rgba(255,106,43,.06);
    --shadow-2:0 18px 44px rgba(23,18,29,.10), 0 8px 20px rgba(255,106,43,.10);
    --maxw:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16.5px;line-height:1.8;letter-spacing:0;overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
  .num,.stat-num{font-variant-numeric:tabular-nums;font-weight:800;}
  ::selection{background:rgba(255,106,43,.22);}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
    font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  }
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,224,176,.55);}
  .btn-grad{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,61,127,.26);}
  .btn-grad:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,61,127,.34);}
  .btn-grad:active{transform:translateY(0);}
  .btn-outline{background:transparent;color:var(--brand-dark);border-color:rgba(255,106,43,.42);}
  .btn-outline:hover{background:rgba(255,106,43,.09);transform:translateY(-2px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--ink-2);padding:0 8px;}
  .btn-ghost:hover{color:var(--brand-dark);}
  .btn-ghost i{transition:transform .22s ease;}
  .btn-ghost:hover i{transform:translateX(4px);}
  .btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(247,245,242,.86);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease,background .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 10px 28px rgba(23,18,29,.08);background:rgba(247,245,242,.95);}
  .header-inner{display:flex;align-items:center;gap:22px;height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;
    display:grid;place-items:center;font-size:15px;
    box-shadow:0 8px 18px rgba(255,61,127,.28);
  }
  .brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:14px;}
  .nav-link{
    position:relative;padding:6px 0;font-size:15px;font-weight:600;color:var(--ink-2);
    transition:color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--brand-dark);}
  .nav-link.is-active::after{transform:scaleX(1);}
  .header-cta{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .header-cta .btn{height:42px;padding:0 20px;font-size:14.5px;}
  .nav-toggle{
    display:none;margin-left:auto;width:44px;height:44px;border-radius:13px;
    background:#fff;border:1px solid var(--line);cursor:pointer;
    flex-direction:column;align-items:center;justify-content:center;gap:5px;
    transition:box-shadow .2s ease,border-color .2s ease;
  }
  .nav-toggle:hover{border-color:rgba(255,106,43,.4);box-shadow:0 6px 16px rgba(23,18,29,.08);}
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease;}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.is-open span:nth-child(2){opacity:0;}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .drawer{
    display:none;border-top:1px solid var(--line);background:#fff;
    padding:18px 24px 24px;box-shadow:0 18px 32px rgba(23,18,29,.10);
  }
  .drawer.is-open{display:block;}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:16px;}
  .drawer-link{
    padding:12px 14px;border-radius:12px;font-weight:700;font-size:15.5px;color:var(--ink-2);
    transition:background .2s ease,color .2s ease;
  }
  .drawer-link:hover{background:rgba(255,106,43,.08);color:var(--brand-dark);}
  .drawer-link.is-active{color:var(--brand-dark);background:rgba(255,106,43,.10);}
  .drawer-cta{display:flex;flex-direction:column;gap:10px;}
  .drawer-cta .btn{width:100%;}

  /* ============ Hero（浅底 + 浮动徽章卡） ============ */
  .hero-cat2{
    position:relative;overflow:hidden;
    padding:68px 0 72px;
    background:
      radial-gradient(920px 420px at 90% -14%, rgba(31,224,176,.16), transparent 62%),
      radial-gradient(760px 400px at 2% 4%, rgba(255,106,43,.13), transparent 60%),
      var(--paper);
  }
  .hero-cat2::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
    background-image:linear-gradient(rgba(23,18,29,.6) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(23,18,29,.6) 1px,transparent 1px);
    background-size:26px 26px;
    mask-image:radial-gradient(60% 60% at 78% 22%,#000,transparent 72%);
    -webkit-mask-image:radial-gradient(60% 60% at 78% 22%,#000,transparent 72%);
  }
  .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;
    color:var(--brand-dark);background:rgba(255,106,43,.10);
    border:1px solid rgba(255,106,43,.22);
  }
  .hero-copy h1{
    margin:20px 0 18px;
    font-size:clamp(30px,4vw,46px);
    line-height:1.22;
  }
  .hero-copy h1 .grad-text{
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{max-width:620px;color:var(--ink-2);font-size:16.5px;line-height:1.85;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
    background:#fff;color:var(--ink-2);border:1px solid var(--line);
  }
  .tag i{color:var(--accent-dark);font-size:11px;}

  .hero-panel{
    position:relative;background:#fff;border-radius:var(--radius-lg);
    border:1px solid var(--line);box-shadow:var(--shadow-2);
    padding:26px 26px 24px;
  }
  .hero-panel::before{
    content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
    background:var(--grad);opacity:.5;
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
    -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
  }
  .panel-badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
    color:#0B6E56;background:rgba(31,224,176,.16);border:1px solid rgba(31,224,176,.36);
  }
  .panel-title{margin:14px 0 18px;font-size:21px;}
  .panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .stat-box{
    background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:16px 16px 14px;
  }
  .stat-num{display:block;font-size:30px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
  .stat-unit{font-size:15px;font-weight:800;color:var(--brand-dark);margin-left:2px;}
  .stat-lbl{display:block;margin-top:8px;font-size:13.5px;color:var(--ink-3);font-weight:600;}
  .panel-note{
    margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-strong);
    font-size:13.5px;color:var(--ink-3);line-height:1.7;
  }

  /* ============ 通用板块 ============ */
  .section{padding:92px 0;}
  .section-tight{padding:72px 0;}
  .section-head{max-width:760px;margin-bottom:40px;}
  .section-head h2{font-size:clamp(23px,2.6vw,31px);margin-bottom:12px;}
  .section-head p{color:var(--ink-2);font-size:16.5px;}
  .kicker{
    display:inline-block;margin-bottom:14px;font-size:13px;font-weight:800;letter-spacing:.08em;
    text-transform:uppercase;color:var(--brand-dark);
  }

  /* ============ 锚点 + 步骤流 ============ */
  .layout-two{display:grid;grid-template-columns:270px minmax(0,1fr);gap:56px;align-items:start;}
  .anchor-rail{position:sticky;top:100px;}
  .rail-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--ink-3);margin-bottom:16px;}
  .anchor-list{position:relative;padding-left:2px;}
  .anchor-list::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line-strong);}
  .anchor-item{position:relative;}
  .anchor-link{
    display:block;padding:9px 0 9px 18px;font-size:14.5px;font-weight:600;color:var(--ink-3);
    line-height:1.5;transition:color .2s ease,padding-left .2s ease;
  }
  .anchor-link::before{
    content:"";position:absolute;left:0;top:50%;width:2px;height:0;border-radius:2px;
    background:var(--accent);transform:translateY(-50%);transition:height .25s ease;
  }
  .anchor-link:hover{color:var(--ink);}
  .anchor-link.is-current{color:var(--ink);}
  .anchor-link.is-current::before{height:24px;}
  .rail-card{
    margin-top:26px;border-radius:var(--radius-md);overflow:hidden;
    border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1);
  }
  .rail-card img{width:100%;height:132px;object-fit:cover;transition:transform .4s ease;}
  .rail-card:hover img{transform:scale(1.03);}
  .rail-card-body{padding:14px 16px 16px;}
  .rail-card-body strong{display:block;font-size:14.5px;margin-bottom:4px;}
  .rail-card-body span{font-size:13px;color:var(--ink-3);line-height:1.65;display:block;}

  .step-flow{position:relative;}
  .step-item{position:relative;padding-left:60px;padding-bottom:52px;scroll-margin-top:110px;}
  .step-item:last-child{padding-bottom:0;}
  .step-item::before{
    content:"";position:absolute;left:18px;top:44px;bottom:6px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,rgba(255,106,43,.42),rgba(107,59,255,.14));
  }
  .step-item:last-child::before{display:none;}
  .step-no{
    position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;
    display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;
    background:var(--grad);box-shadow:0 8px 20px rgba(255,61,127,.28);
    font-variant-numeric:tabular-nums;
  }
  .step-item h3{font-size:21px;margin-bottom:12px;}
  .step-item p{color:var(--ink-2);font-size:16px;margin-bottom:10px;max-width:760px;}
  .tick-list{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
  .tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
  .tick-list li i{color:var(--accent-dark);font-size:13px;margin-top:6px;flex-shrink:0;}
  .step-figure{
    margin-top:20px;border-radius:var(--radius-md);overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-1);background:#fff;max-width:640px;
  }
  .step-figure img{width:100%;height:220px;object-fit:cover;}
  .step-figure figcaption{padding:12px 16px;font-size:13px;color:var(--ink-3);}
  .inline-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
    font-size:13px;font-weight:700;background:rgba(255,106,43,.10);color:var(--brand-dark);
    border:1px solid rgba(255,106,43,.20);
  }
  .badge-mint{background:rgba(31,224,176,.14);color:#0B6E56;border-color:rgba(31,224,176,.34);}
  .badge-mute{background:#fff;color:var(--ink-2);border-color:var(--line-strong);}

  /* ============ 常见情形 / 对应做法 ============ */
  .cases{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
  .case-card{
    border:1px solid var(--line);border-radius:var(--radius-md);padding:24px 24px 22px;
    background:var(--paper);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,106,43,.28);}
  .case-card.case-a{background:linear-gradient(180deg,rgba(31,224,176,.10),rgba(255,255,255,1));}
  .case-tag{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
    font-size:12.5px;font-weight:800;margin-bottom:14px;
  }
  .case-tag.q{background:rgba(255,106,43,.12);color:var(--brand-dark);}
  .case-tag.a{background:rgba(31,224,176,.18);color:#0B6E56;}
  .case-card h3{font-size:18px;margin-bottom:10px;}
  .case-card p{font-size:15px;color:var(--ink-2);}

  /* ============ 数据带 ============ */
  .metrics{
    background:var(--deep);color:#fff;border-radius:var(--radius-lg);
    padding:44px 40px;position:relative;overflow:hidden;
  }
  .metrics::before{
    content:"";position:absolute;inset:0;opacity:.06;
    background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
    background-size:24px 24px;
  }
  .metrics-inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
  .metric{border-left:2px solid rgba(255,255,255,.14);padding-left:20px;}
  .metric:first-child{border-left-color:transparent;}
  .metric .metric-num{
    font-size:36px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
    background:linear-gradient(135deg,#FFB27A,#1FE0B0);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .metric .metric-lbl{display:block;margin-top:12px;font-size:14.5px;font-weight:700;}
  .metric .metric-desc{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.7;}

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item[open]{border-color:rgba(255,106,43,.30);box-shadow:var(--shadow-1);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 24px;cursor:pointer;font-size:17px;font-weight:700;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:-4px;}
  .faq-icon{
    width:28px;height:28px;border-radius:50%;flex-shrink:0;
    display:grid;place-items:center;font-size:12px;
    background:rgba(255,106,43,.12);color:var(--brand-dark);
    transition:transform .28s ease,background .28s ease,color .28s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(135deg);background:var(--grad);color:#fff;}
  .faq-body{padding:0 24px 22px;border-top:1px solid var(--line);}
  .faq-body p{padding-top:16px;font-size:15.5px;color:var(--ink-2);}

  /* ============ CTA 横带 ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    background:var(--deep-2);color:#fff;padding:52px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  }
  .cta-band::before{
    content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
    background:var(--grad);opacity:.22;filter:blur(10px);
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;opacity:.05;
    background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.9) 0 1px,transparent 1px 16px);
  }
  .cta-copy{position:relative;z-index:2;max-width:620px;}
  .cta-copy h2{font-size:clamp(22px,2.5vw,30px);margin-bottom:12px;}
  .cta-copy p{color:rgba(255,255,255,.72);font-size:16px;}
  .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}
  .cta-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.38);}
  .cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:#fff;margin-top:96px;padding:72px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
  .footer-title{font-size:17.5px;font-weight:800;}
  .footer-desc{font-size:14.5px;color:rgba(255,255,255,.66);line-height:1.85;max-width:340px;}
  .footer-head{font-size:14px;font-weight:800;letter-spacing:.04em;margin-bottom:18px;color:#fff;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .2s ease,transform .2s ease;width:fit-content;}
  .footer-links a:hover{color:var(--brand-tint);transform:translateX(3px);}
  .footer-bottom{
    margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13.5px;color:rgba(255,255,255,.55);
  }
  .footer-bottom strong{color:rgba(255,255,255,.82);font-weight:700;}

  /* ============ 返回顶部 ============ */
  .to-top{
    position:fixed;right:22px;bottom:24px;z-index:70;
    width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
    background:#fff;color:var(--ink-2);cursor:pointer;
    display:grid;place-items:center;box-shadow:var(--shadow-1);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease,color .2s ease,border-color .2s ease;
  }
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{color:var(--brand-dark);border-color:rgba(255,106,43,.4);}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .header-cta{display:none;}
    .nav-toggle{display:flex;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .layout-two{grid-template-columns:1fr;gap:34px;}
    .anchor-rail{position:static;}
    .anchor-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;}
    .anchor-list::before{display:none;}
    .anchor-item{flex:0 0 auto;}
    .anchor-link{
      padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
      white-space:nowrap;font-size:14px;
    }
    .anchor-link::before{display:none;}
    .anchor-link.is-current{background:rgba(255,106,43,.10);border-color:rgba(255,106,43,.32);color:var(--brand-dark);}
    .anchor-rail .rail-card{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
    .metrics-inner{grid-template-columns:1fr 1fr;gap:24px;}
  }
  @media (max-width:767px){
    body{font-size:16px;}
    .wrap{padding:0 20px;}
    .brand-text{font-size:16.5px;}
    .section{padding:62px 0;}
    .section-tight{padding:52px 0;}
    .hero-cat2{padding:46px 0 54px;}
    .hero-actions .btn{width:100%;}
    .panel-stats{grid-template-columns:1fr 1fr;}
    .case-grid{grid-template-columns:1fr;}
    .metrics{padding:32px 22px;}
    .metrics-inner{grid-template-columns:1fr;gap:22px;}
    .metric{border-left:none;border-top:1px solid rgba(255,255,255,.14);padding-left:0;padding-top:18px;}
    .metric:first-child{border-top:none;padding-top:0;}
    .step-item{padding-left:50px;padding-bottom:42px;}
    .step-item::before{left:15px;}
    .step-no{width:32px;height:32px;font-size:12px;}
    .step-item h3{font-size:19px;}
    .cta-band{padding:36px 24px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-bottom{flex-direction:column;gap:8px;}
    .faq-item summary{padding:18px 18px;font-size:16px;}
    .faq-body{padding:0 18px 20px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    html{scroll-behavior:auto;}
  }