/* roulang page: index */
:root{
  --ink:#0E1211;
  --ink-2:#1B211F;
  --lime:#C8F135;
  --lime-dark:#A9D31B;
  --lime-glow:rgba(200,241,53,.28);
  --accent2:#FF7A3D;
  --sand:#F5F2EB;
  --sand-2:#EFEBE2;
  --paper:#FFFFFF;
  --muted:#6E756F;
  --line:#E2DED4;
  --r:6px;
  --r-pill:999px;
  --sh-hover:0 10px 28px rgba(14,18,17,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--sand);
  --bs-body-color:var(--ink-2);
  --bs-border-color:var(--line);
  --bs-border-radius:6px;
  --bs-link-color:var(--ink-2);
  --bs-link-hover-color:var(--ink);
  --bs-primary:var(--lime);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.18;color:var(--ink);font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--lime-glow);border-radius:4px;}
.container{width:100%;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1200px){.container{max-width:1200px;}}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 通用组件 ---------- */
.jbtn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;padding:12px 24px;
  cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;
}
.jbtn i{transition:transform .2s var(--ease);}
.jbtn:hover i.fa-arrow-right{transform:translateX(4px);}
.jbtn--lime{background:var(--lime);color:var(--ink);}
.jbtn--lime:hover{background:var(--lime-dark);color:var(--ink);transform:translateY(-1px);}
.jbtn--ghost{border-color:rgba(255,255,255,.42);color:#fff;background:transparent;}
.jbtn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px);}
.jbtn--dark{background:var(--ink);color:#fff;}
.jbtn--dark:hover{background:#000;color:#fff;transform:translateY(-1px);}
.jbtn--lg{padding:15px 30px;font-size:16px;}
.jbtn--block{width:100%;}
.jbtn:disabled{opacity:.45;cursor:not-allowed;}

.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:transparent;color:var(--ink-2);font-size:14px;font-weight:600;
  cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;
}
.chip:hover{border-color:var(--ink);}
.chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--sand-2);color:var(--ink-2);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag--hot{background:var(--accent2);color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.06em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--lime);display:inline-block;}

.section{padding:96px 0;}
.section--alt{background:var(--sand-2);}
.section--ink{background:var(--ink);}
.section--ink h2,.section--ink h3{color:#fff;}
.section--ink .section-head p{color:rgba(255,255,255,.66);}
.section-head{max-width:780px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3.4vw,42px);margin:14px 0 16px;}
.section-head p{color:var(--muted);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  padding:16px 0;transition:background .25s var(--ease),padding .25s var(--ease),border-color .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(14,18,17,.94);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom-color:rgba(226,222,212,.14);
  padding:9px 0;
}
.header-inner{display:flex;align-items:center;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:11px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:900;font-size:15px;letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;color:#fff;}
.brand-text b{font-size:18px;font-weight:800;letter-spacing:-.01em;}
.brand-text span{font-size:11px;font-weight:500;letter-spacing:.14em;color:rgba(255,255,255,.6);}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-chips .chip{border-color:rgba(255,255,255,.22);color:rgba(255,255,255,.84);}
.nav-chips .chip:hover{border-color:rgba(255,255,255,.55);color:#fff;}
.nav-chips .chip.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.header-actions{margin-left:24px;flex-shrink:0;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;
  display:grid;place-items:center;font-size:17px;cursor:pointer;
}
.mobile-nav{background:var(--ink);color:#fff;width:320px;}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:20px 22px;}
.mobile-nav .offcanvas-title{color:#fff;font-weight:800;font-size:17px;}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.mobile-nav .offcanvas-body{padding:22px;}
.mnav-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:10px;color:rgba(255,255,255,.8);
  font-size:15px;font-weight:600;border:1px solid rgba(255,255,255,.14);margin-bottom:10px;
  transition:all .2s var(--ease);
}
.mnav-link:hover{color:#fff;border-color:rgba(255,255,255,.4);}
.mnav-link.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink);}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);overflow:hidden;padding:158px 0 76px;}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center right/cover no-repeat;
  opacity:.5;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,18,17,.97) 0%,rgba(14,18,17,.86) 42%,rgba(14,18,17,.42) 100%);
}
.hero-inner{position:relative;z-index:2;}
.hero-copy{max-width:720px;}
.hero .eyebrow{color:rgba(255,255,255,.62);}
.hero h1{
  color:#fff;font-size:clamp(32px,5.2vw,60px);font-weight:900;letter-spacing:-.025em;
  line-height:1.12;margin:20px 0 22px;
}
.hero-sub{color:rgba(255,255,255,.76);font-size:17px;max-width:620px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.16);margin-top:56px;padding-top:26px;
}
.hero-stats .stat{padding-right:20px;}
.hero-stats .stat + .stat{border-left:1px solid rgba(255,255,255,.14);padding-left:24px;}
.stat-num{
  font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--lime);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;
}
.stat-label{font-size:13px;color:rgba(255,255,255,.6);margin-top:6px;letter-spacing:.03em;}

/* ---------- 亮点区 ---------- */
.hl-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:stretch;}
.hl-main{
  position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  background:var(--ink);min-height:420px;
}
.hl-main img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.hl-main:hover img{transform:scale(1.04);}
.hl-main-cap{
  position:absolute;left:0;right:0;bottom:0;padding:28px 26px 26px;color:#fff;
  background:linear-gradient(0deg,rgba(14,18,17,.94) 8%,rgba(14,18,17,.55) 55%,transparent 100%);
}
.hl-main-cap h3{color:#fff;font-size:22px;margin-bottom:8px;}
.hl-main-cap p{color:rgba(255,255,255,.74);font-size:14.5px;}
.hl-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.hl-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 22px;transition:all .22s var(--ease);display:flex;flex-direction:column;
}
.hl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.hl-card .idx{
  font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.1em;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.hl-card h3{font-size:18px;margin-bottom:10px;}
.hl-card p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.hl-card .ico{
  width:38px;height:38px;border-radius:10px;background:var(--sand-2);
  display:grid;place-items:center;color:var(--ink);margin-bottom:16px;font-size:15px;
}

/* ---------- 流程时间线 ---------- */
.flow{position:relative;padding-left:36px;max-width:860px;}
.flow::before{content:"";position:absolute;left:10px;top:10px;bottom:14px;width:2px;background:var(--line);}
.flow-item{position:relative;padding-bottom:34px;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-31px;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--paper);border:2px solid var(--line);transition:all .25s var(--ease);
}
.flow-item.is-active::before{background:var(--lime);border-color:var(--lime);box-shadow:0 0 0 6px var(--lime-glow);}
.flow-step{
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);
  font-variant-numeric:tabular-nums;text-transform:uppercase;
}
.flow-item h3{font-size:20px;margin:8px 0 8px;}
.flow-item p{color:var(--muted);font-size:15px;max-width:640px;}
.flow-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}

/* ---------- 活动福利 ---------- */
.bonus-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.bonus-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:all .22s var(--ease);display:flex;flex-direction:column;
}
.bonus-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.bonus-card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--sand-2);}
.bonus-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.bonus-card:hover figure img{transform:scale(1.04);}
.bonus-body{padding:24px 24px 26px;}
.bonus-body h3{font-size:20px;margin:12px 0 10px;}
.bonus-body p{color:var(--muted);font-size:15px;}
.bonus-body ul{margin-top:16px;display:grid;gap:9px;}
.bonus-body li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);}
.bonus-body li i{color:var(--lime-dark);margin-top:6px;font-size:12px;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:28px;}
.news-lead{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;display:grid;grid-template-columns:1fr 1fr;transition:all .22s var(--ease);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.news-lead figure{margin:0;overflow:hidden;background:var(--sand-2);min-height:230px;}
.news-lead figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.news-lead:hover figure img{transform:scale(1.04);}
.news-lead-body{padding:26px 26px 24px;display:flex;flex-direction:column;}
.news-lead-body h3{
  font-size:21px;margin:14px 0 12px;line-height:1.32;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-lead-body p{
  color:var(--muted);font-size:14.5px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
}
.news-meta i{color:var(--lime-dark);}
.news-side{display:flex;flex-direction:column;}
.news-mini{
  padding:18px 0;border-top:1px solid var(--line);transition:all .2s var(--ease);
  display:block;
}
.news-mini:first-child{border-top:none;padding-top:0;}
.news-mini h4{
  font-size:16px;font-weight:700;line-height:1.45;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-mini:hover h4{color:var(--lime-dark);}
.news-mini p{
  color:var(--muted);font-size:14px;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-mini .news-meta{margin:0;padding:0;border:none;gap:10px;}
.empty-state{
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;border:1px dashed var(--line);border-radius:var(--r);background:var(--paper);
  color:var(--muted);text-align:center;padding:28px;
}
.empty-state i{font-size:40px;color:var(--line);}
.section--ink .empty-state{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:rgba(255,255,255,.6);}
.section--ink .empty-state i{color:rgba(255,255,255,.22);}

/* ---------- FAQ ---------- */
.faq{max-width:900px;}
.faq .accordion-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  margin-bottom:12px;overflow:hidden;
}
.faq .accordion-button{
  background:var(--paper);color:var(--ink);font-weight:700;font-size:17px;
  padding:20px 56px 20px 22px;box-shadow:none;border:none;position:relative;
}
.faq .accordion-button:not(.collapsed){background:var(--sand-2);color:var(--ink);}
.faq .accordion-button:focus{box-shadow:0 0 0 3px var(--lime-glow);}
.faq .accordion-button::after{display:none;}
.faq .accordion-button .faq-toggle{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:12px;color:var(--ink-2);
  background:var(--paper);transition:all .2s var(--ease);
}
.faq .accordion-button:not(.collapsed) .faq-toggle{background:var(--lime);border-color:var(--lime);}
.faq .accordion-button .faq-toggle .fa-minus{display:none;}
.faq .accordion-button:not(.collapsed) .faq-toggle .fa-minus{display:block;}
.faq .accordion-button:not(.collapsed) .faq-toggle .fa-plus{display:none;}
.faq .accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:15px;}

/* ---------- CTA 长条 ---------- */
.cta-band{background:var(--ink);position:relative;overflow:hidden;padding:88px 0;}
.cta-band-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.16;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start;}
.cta-form-wrap{background:var(--paper);border-radius:var(--r);padding:34px 32px;}
.cta-form-wrap h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:10px;}
.cta-form-wrap > p{color:var(--muted);font-size:15px;margin-bottom:26px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:var(--ink-2);}
.field label .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent2);margin-left:6px;vertical-align:middle;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r);
  padding:0 15px;font-size:15px;color:var(--ink-2);background:var(--paper);
  font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:96px;padding:13px 15px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#A9AEA8;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--lime);box-shadow:0 0 0 3px var(--lime-glow);outline:none;
}
.form-hint{font-size:13px;color:var(--muted);margin-top:14px;}
.form-msg{
  margin-top:16px;padding:12px 16px;border-radius:var(--r);
  background:rgba(200,241,53,.22);color:var(--ink-2);font-size:14px;display:none;
}
.form-msg.is-on{display:block;}
.cta-side{color:#fff;}
.cta-side h3{color:#fff;font-size:20px;margin-bottom:20px;}
.cta-side .side-list{display:grid;gap:0;}
.cta-side .side-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.14);
  font-size:15px;color:rgba(255,255,255,.82);
}
.cta-side .side-list li i{color:var(--lime);margin-top:6px;font-size:13px;}
.cta-facts{margin-top:28px;display:grid;gap:14px;}
.cta-facts div{font-size:14px;color:rgba(255,255,255,.7);}
.cta-facts strong{color:#fff;font-weight:700;display:block;font-size:13px;letter-spacing:.06em;margin-bottom:4px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px;}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:#fff;text-transform:uppercase;
  margin-bottom:18px;font-weight:700;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.7);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--lime);}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.7);margin-bottom:10px;}
.footer-bottom{
  border-top:1px solid rgba(200,241,53,.28);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 动效 ---------- */
.js-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.js-reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cta-inner{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .hero{padding:130px 0 64px;}
  .hl-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{padding:68px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .hero{padding:118px 0 56px;min-height:auto;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:22px 0;margin-top:40px;}
  .hero-stats .stat + .stat{border-left:none;padding-left:0;}
  .hero-stats .stat:nth-child(even){border-left:1px solid rgba(255,255,255,.14);padding-left:20px;}
  .hl-list{grid-template-columns:1fr;}
  .bonus-grid{grid-template-columns:1fr;}
  .news-lead{grid-template-columns:1fr;}
  .news-lead figure{min-height:190px;aspect-ratio:16/9;}
  .form-row{grid-template-columns:1fr;}
  .cta-form-wrap{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .flow{padding-left:30px;}
  .flow::before{left:7px;}
  .flow-item::before{left:-28px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .hero h1{font-size:30px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .jbtn{width:100%;}
  .brand-text b{font-size:16px;}
  .brand-text span{font-size:10px;letter-spacing:.1em;}
  .brand-mark{width:38px;height:38px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .js-reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0E1211;
  --ink-2:#1B211F;
  --lime:#C8F135;
  --lime-dark:#A9D31B;
  --accent2:#FF7A3D;
  --sand:#F5F2EB;
  --sand-2:#EFEBE2;
  --paper:#FFFFFF;
  --muted:#6E756F;
  --line:#E2DED4;
  --radius:6px;
  --shadow-line:0 1px 0 var(--line);
  --shadow-hover:0 10px 28px rgba(14,18,17,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--sand);
  --bs-body-color:var(--ink-2);
  --bs-border-color:var(--line);
  --bs-border-radius:6px;
  --bs-border-radius-lg:6px;
  --bs-link-color:var(--ink-2);
  --bs-link-hover-color:var(--ink);
  --bs-primary:#C8F135;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--sand);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
a:hover{color:var(--ink)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.22}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,241,53,.45)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:12px 22px;
  transition:all .2s var(--ease);
}
.btn-cta{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.btn-cta:hover{background:var(--lime-dark);border-color:var(--lime-dark);color:var(--ink);transform:translateY(-1px)}
.btn-cta:hover .btn-arrow{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-line{background:var(--paper);border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--ink);color:var(--ink)}
.btn:disabled,.btn.disabled{opacity:.45;pointer-events:none}
.btn-arrow{transition:transform .2s var(--ease)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,18,17,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(226,222,212,.14);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(14,18,17,.24)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:none}
.brand:hover{color:#fff}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-weight:900;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em}
.brand-text span{font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.58)}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:12px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 15px;
  border-radius:999px;border:1px solid var(--chip-line,rgba(255,255,255,.18));
  color:var(--chip-fg,rgba(255,255,255,.78));
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:all .2s var(--ease);
}
.chip:hover{color:var(--chip-fg-hover,#fff);border-color:var(--chip-fg-hover,#fff)}
.chip.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.chip.on-light{--chip-line:var(--line);--chip-fg:var(--muted);--chip-fg-hover:var(--ink)}
.chip.on-light.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-toggle{
  width:42px;height:42px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#fff;display:grid;place-items:center;font-size:15px;
  transition:all .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.offcanvas.nav-drawer{background:var(--ink);color:#fff;width:min(86vw,340px)}
.nav-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.nav-drawer .offcanvas-title{color:#fff;font-weight:800;font-size:16px;letter-spacing:.04em}
.nav-drawer .offcanvas-body{padding:18px 20px 24px;display:flex;flex-direction:column}
.drawer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.drawer-list a{
  display:block;padding:14px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.82);font-weight:600;font-size:15px;
}
.drawer-list a:hover{border-color:rgba(255,255,255,.5);color:#fff}
.drawer-list a.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.drawer-foot{margin-top:auto;padding-top:24px}

/* ============ 文章头部 ============ */
.article-hero{background:var(--sand-2);border-bottom:1px solid var(--line);padding:34px 0 46px}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb-line a{color:var(--muted)}
.breadcrumb-line a:hover{color:var(--ink)}
.breadcrumb-line .sep{opacity:.5}
.breadcrumb-line .current{
  max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-2);
}
.hero-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.article-title{font-size:clamp(28px,4.2vw,44px);font-weight:900;max-width:920px;margin-bottom:22px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--muted)}
.article-meta .divider{width:1px;height:14px;background:var(--line)}
.article-meta i{color:var(--lime-dark);margin-right:6px}

/* ============ 文章主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 260px;
  justify-content:space-between;gap:56px;
  padding:56px 0 72px;
}
.cover-figure{margin:0 0 34px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--paper)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:17px;line-height:1.95;color:var(--ink-2);word-break:break-word}
.article-body > * + *{margin-top:20px}
.article-body h2{
  position:relative;padding-left:18px;margin-top:44px;
  font-size:clamp(22px,2.6vw,27px);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;
  background:var(--lime);border-radius:2px;
}
.article-body h3{font-size:20px;margin-top:32px}
.article-body h4{font-size:17px;margin-top:24px}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin:8px 0}
.article-body a{color:var(--ink);border-bottom:1px solid var(--lime)}
.article-body a:hover{background:rgba(200,241,53,.35)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--sand-2);
  border-left:4px solid var(--lime);border-radius:0 6px 6px 0;color:var(--ink-2);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:6px;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:26px 0}
.article-body th{text-align:left;padding:12px 10px;border-bottom:1px solid var(--ink);font-weight:700;color:var(--ink)}
.article-body td{padding:12px 10px;border-bottom:1px solid var(--line)}
.article-body code{background:var(--sand-2);padding:2px 6px;border-radius:4px;font-size:15px}

/* 空态 */
.empty-state{
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:34px;background:var(--paper);
  border:1px dashed var(--line);border-radius:6px;
}
.empty-state i{font-size:40px;color:var(--muted);opacity:.55}
.empty-state p{color:var(--muted);font-size:15px}

/* 标签 & 翻页 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--sand-2);color:var(--ink-2);font-size:13px;font-weight:600;
  transition:all .2s var(--ease);
}
.tag:hover{background:var(--lime);color:var(--ink)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.pager-link{
  display:block;padding:20px 22px;background:var(--paper);
  border:1px solid var(--line);border-radius:6px;transition:all .2s var(--ease);
}
.pager-link:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.pager-link .k{display:block;font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:8px}
.pager-link strong{display:block;font-size:17px;color:var(--ink);font-weight:800}
.pager-link span.d{display:block;font-size:14px;color:var(--muted);margin-top:6px;line-height:1.8}
.pager-link.right{text-align:right}

/* 侧栏 */
.article-side{position:relative}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:22px}
.side-card h3{font-size:13px;letter-spacing:.1em;color:var(--muted);font-weight:700;margin-bottom:16px;text-transform:uppercase}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.side-list a{font-size:15px;font-weight:600;color:var(--ink-2);display:flex;align-items:center;justify-content:space-between;gap:8px}
.side-list a:hover{color:var(--ink)}
.side-list a i{font-size:11px;color:var(--muted)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-card.is-lime{background:var(--lime);border-color:var(--lime)}
.side-card.is-lime h3{color:rgba(14,18,17,.65)}
.side-card.is-lime p{font-size:14px;color:var(--ink);line-height:1.8;margin-bottom:16px}
.side-card.is-lime .btn{width:100%;background:var(--ink);border-color:var(--ink);color:#fff}
.side-card.is-lime .btn:hover{background:#000;border-color:#000;color:#fff}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,3vw,34px)}
.eyebrow{display:block;font-size:13px;letter-spacing:.14em;color:var(--muted);margin-bottom:12px}
.section-alt{background:var(--sand-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 相关阅读 */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:6px;overflow:hidden;
  transition:all .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#d9d4c7}
.post-card figure{margin:0;overflow:hidden}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover img{transform:scale(1.04)}
.post-card .card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:18px;line-height:1.45}
.post-card p{font-size:14px;color:var(--muted);line-height:1.8}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.card-meta .dot{width:1px;height:12px;background:var(--line)}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--ink);color:#fff;padding:68px 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,53,.18),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:start}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-lead{color:rgba(255,255,255,.72);font-size:16px;line-height:1.9;max-width:520px}
.cta-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:rgba(255,255,255,.7);font-weight:600}
.req-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent2);margin-left:6px;vertical-align:middle}
.form-control,.form-select{
  width:100%;height:48px;padding:0 14px;font-size:15px;color:#fff;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);border-radius:6px;
  transition:all .2s var(--ease);
}
.form-control::placeholder{color:rgba(255,255,255,.4)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.1);border-color:var(--lime);color:#fff;
  box-shadow:0 0 0 3px rgba(200,241,53,.35);outline:none;
}
.form-select option{color:#111}
.form-tip{grid-column:1 / -1;font-size:14px;color:var(--lime);margin-top:4px}
.cta-benefits{
  list-style:none;padding:0 0 0 32px;margin:0;
  border-left:1px solid rgba(255,255,255,.16);
  display:flex;flex-direction:column;gap:16px;
}
.cta-benefits li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.8}
.cta-benefits i{color:var(--lime);margin-top:5px}
.cta-detail{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.65)}
.cta-detail strong{color:#fff;font-weight:700}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 28px;border-top:1px solid rgba(200,241,53,.35)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:330px}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:16px;text-transform:uppercase}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--lime)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:44px;padding:48px 0 64px}
  .article-side{order:2}
  .side-sticky{position:static}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .cta-benefits{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.16);padding-top:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767.98px){
  .container{padding:0 18px}
  .header-inner{min-height:64px;gap:16px}
  .brand-text span{display:none}
  .article-hero{padding:26px 0 34px}
  .article-title{font-size:clamp(24px,6.4vw,32px)}
  .pager{grid-template-columns:1fr}
  .pager-link.right{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr}
  .section{padding:56px 0}
  .cta-band{padding:56px 0}
  .breadcrumb-line .current{max-width:200px}
}
@media (max-width:575.98px){
  body{font-size:15px}
  .article-body{font-size:16px;line-height:1.9}
  .article-meta{gap:10px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .btn{padding:11px 18px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#0E1211;
  --ink-2:#1B211F;
  --lime:#C8F135;
  --lime-dark:#A9D31B;
  --accent2:#FF7A3D;
  --sand:#F5F2EB;
  --paper:#FFFFFF;
  --band:#EFEBE2;
  --muted:#6E756F;
  --line:#E2DED4;
  --radius-s:4px;
  --radius:6px;
  --radius-pill:999px;
  --shadow-hover:0 10px 28px rgba(14,18,17,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--sand);
  --bs-body-color:var(--ink-2);
  --bs-border-color:var(--line);
  --bs-border-radius:6px;
  --bs-link-color:var(--ink-2);
  --bs-link-hover-color:var(--ink);
  --bs-primary:var(--lime);
  --bs-primary-rgb:200,241,53;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink-2);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink-2);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);letter-spacing:-.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(200,241,53,.55);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.num-font,.stat b,.spec b,.rank-num{font-family:"Manrope",var(--bs-font-sans-serif);font-variant-numeric:tabular-nums;}

/* ---------- 通用按钮 ---------- */
.btn-lime,.btn-ghost,.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-lime{background:var(--lime);border:1px solid var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--lime-dark);border-color:var(--lime-dark);color:var(--ink);transform:translateY(-1px);}
.btn-lime i{transition:transform .22s var(--ease);}
.btn-lime:hover i{transform:translateX(4px);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.42);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.8);color:#fff;transform:translateY(-1px);}
.btn-ink{background:transparent;border:1px solid var(--ink);color:var(--ink);}
.btn-ink:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,18,17,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(14,18,17,.98);box-shadow:0 10px 30px rgba(14,18,17,.22);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text b{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.02em;}
.brand-text span{font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.62);}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:auto;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.78);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.chip:hover{color:#fff;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06);}
.chip.is-active{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:24px;}
.nav-toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.45);}

/* 移动端抽屉 */
.mobile-nav{background:var(--ink);color:#fff;width:320px;border-left:1px solid rgba(255,255,255,.1);}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1);padding:18px 20px;}
.mobile-nav .offcanvas-body{padding:20px;}
.nav-stack{display:grid;gap:10px;}
.nav-stack .chip{width:100%;height:46px;justify-content:flex-start;padding:0 16px;font-size:15px;}
.mobile-nav-foot{padding:20px;border-top:1px solid rgba(255,255,255,.1);}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center right/cover no-repeat;
  opacity:.45;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,18,17,.97) 0%,rgba(14,18,17,.88) 46%,rgba(14,18,17,.52) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-inner{padding:72px 0 56px;max-width:780px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.6);}
.crumb a:hover{color:var(--lime);}
.crumb span.sep{opacity:.5;}
.tag-line{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--radius-pill);background:rgba(200,241,53,.14);border:1px solid rgba(200,241,53,.4);color:var(--lime);font-size:13px;font-weight:700;margin-bottom:20px;}
.hero h1{font-size:clamp(32px,5.2vw,60px);font-weight:900;line-height:1.12;color:#fff;margin-bottom:20px;}
.hero-sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.76);max-width:640px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats .stat{padding:22px 20px 4px 0;border-right:1px solid rgba(255,255,255,.1);}
.hero-stats .stat:last-child{border-right:0;}
.hero-stats .stat b{display:block;font-size:30px;font-weight:900;color:var(--lime);letter-spacing:-.02em;line-height:1.2;}
.hero-stats .stat span{display:block;font-size:13px;color:rgba(255,255,255,.62);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--band);}
.section-ink{background:var(--ink);color:rgba(255,255,255,.78);}
.section-ink h2,.section-ink h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;}
.section-ink .eyebrow{color:var(--lime);}
.section-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:900;line-height:1.18;margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--muted);line-height:1.9;}
.section-ink .section-head p{color:rgba(255,255,255,.66);}

/* ---------- 注册前准备 ---------- */
.prep-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.prep-visual{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--paper);}
.prep-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease);}
.prep-visual:hover img{transform:scale(1.04);}
.prep-list{display:grid;gap:8px;}
.prep-item{position:relative;padding:18px 0 18px 64px;border-bottom:1px solid var(--line);}
.prep-item:last-child{border-bottom:0;}
.prep-item .idx{
  position:absolute;left:0;top:12px;font-family:"Manrope",sans-serif;font-size:34px;font-weight:900;
  color:var(--ink);opacity:.14;line-height:1;
}
.prep-item h3{font-size:18px;font-weight:800;margin-bottom:6px;}
.prep-item p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- 流程步骤 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.steps::before{content:"";position:absolute;top:23px;left:6%;right:6%;height:1px;background:var(--line);}
.step{position:relative;padding-top:64px;}
.step .dot{
  position:absolute;top:8px;left:0;width:32px;height:32px;border-radius:50%;
  background:var(--paper);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-family:"Manrope",sans-serif;font-size:13px;font-weight:800;color:var(--ink);
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step.is-active .dot{background:var(--lime);border-color:var(--lime);box-shadow:0 0 0 8px rgba(200,241,53,.16);}
.step h3{font-size:19px;font-weight:800;margin-bottom:8px;}
.step p{font-size:15px;color:var(--muted);line-height:1.8;}
.step .tip{display:inline-block;margin-top:10px;font-size:13px;color:var(--ink);background:var(--band);border-radius:var(--radius-pill);padding:4px 12px;}

/* ---------- 规格对比条 ---------- */
.spec-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:56px;}
.spec{padding:28px 24px;border-right:1px solid var(--line);}
.spec:last-child{border-right:0;}
.spec b{display:block;font-size:32px;font-weight:900;letter-spacing:-.02em;color:var(--ink);line-height:1.2;}
.spec span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 登录方式列表 ---------- */
.method-list{border-top:1px solid var(--line);}
.method{
  display:grid;grid-template-columns:260px 1fr auto;gap:24px;align-items:center;
  padding:24px 16px;border-bottom:1px solid var(--line);border-radius:var(--radius);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.method:hover{background:var(--paper);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.method h3{font-size:18px;font-weight:800;display:flex;align-items:center;gap:10px;}
.method p{font-size:15px;color:var(--muted);line-height:1.8;}
.badge-soft{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--radius-pill);background:var(--band);color:var(--ink);font-size:12px;font-weight:700;}
.badge-hot{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--radius-pill);background:var(--accent2);color:#fff;font-size:12px;font-weight:700;}
.method-link{font-size:14px;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.method-link i{transition:transform .22s var(--ease);}
.method:hover .method-link i{transform:translateX(4px);}

/* ---------- 场景宽卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{
  display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:box-shadow .24s var(--ease),transform .24s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.scene-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.scene-card:hover .scene-thumb img{transform:scale(1.04);}
.scene-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,18,17,0) 42%,rgba(14,18,17,.84) 100%);}
.scene-cap{position:absolute;left:22px;right:22px;bottom:18px;z-index:2;color:#fff;}
.scene-cap h3{color:#fff;font-size:20px;font-weight:800;margin-bottom:6px;}
.scene-cap span{font-size:13px;color:rgba(255,255,255,.72);}
.scene-body{padding:20px 22px 22px;}
.scene-body p{font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- 安全清单 ---------- */
.safe-wrap{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:8px 32px;}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;}
.check{display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--line);}
.check:nth-last-child(-n+2){border-bottom:0;}
.check .ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:var(--ink);color:var(--lime);
  display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:4px;
}
.check h3{font-size:16px;font-weight:800;margin-bottom:4px;}
.check p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- 热度排行 ---------- */
.rank-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:44px;}
.rank-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:box-shadow .24s var(--ease),transform .24s var(--ease);}
.rank-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.rank-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px;}
.rank-num{font-size:40px;font-weight:900;color:var(--ink);opacity:.14;line-height:1;}
.rank-item h3{font-size:16px;font-weight:800;margin-bottom:8px;}
.rank-item p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.accordion-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;}
.accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:20px 24px;background:var(--paper);border:0;border-radius:0;
  font-size:17px;font-weight:700;color:var(--ink);text-align:left;box-shadow:none;
}
.accordion-button:not(.collapsed){background:var(--paper);color:var(--ink);box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(200,241,53,.35);border-color:transparent;}
.accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:500;color:var(--ink);line-height:1;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"−";background:var(--lime);border-color:var(--lime);transform:rotate(180deg);}
.accordion-body{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.9;}

/* ---------- CTA 与表单 ---------- */
.cta-band{background:var(--ink);color:rgba(255,255,255,.78);padding:88px 0;}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;}
.cta-band h2{font-size:clamp(26px,3.2vw,38px);font-weight:900;color:#fff;line-height:1.2;margin-bottom:14px;}
.cta-band .cta-lead{font-size:16px;color:rgba(255,255,255,.66);margin-bottom:32px;}
.field{margin-bottom:18px;}
.form-label{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;letter-spacing:.02em;color:rgba(255,255,255,.72);margin-bottom:8px;}
.dot-req{width:6px;height:6px;border-radius:50%;background:var(--accent2);display:inline-block;}
.form-control,.form-select{
  height:48px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:15px;padding:0 14px;box-shadow:none;
}
.form-control::placeholder{color:rgba(255,255,255,.38);}
.form-select{color:rgba(255,255,255,.86);}
.form-select option{color:var(--ink);}
textarea.form-control{height:auto;min-height:110px;padding:14px;line-height:1.7;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--lime);background:rgba(255,255,255,.1);color:#fff;
  box-shadow:0 0 0 3px rgba(200,241,53,.35);
}
.form-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:14px;}
.form-msg{margin-top:16px;font-size:14px;font-weight:700;color:var(--lime);min-height:20px;}
.cta-side{border-left:1px solid rgba(255,255,255,.12);padding-left:40px;}
.cta-side h3{font-size:17px;font-weight:800;color:#fff;margin-bottom:18px;}
.cta-side ul{display:grid;gap:14px;margin-bottom:28px;}
.cta-side li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.74);line-height:1.75;}
.cta-side li i{color:var(--lime);margin-top:6px;font-size:13px;}
.side-meta{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:grid;gap:10px;}
.side-meta div{display:flex;justify-content:space-between;gap:16px;font-size:14px;}
.side-meta span{color:rgba(255,255,255,.5);}
.side-meta b{color:#fff;font-weight:700;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);border-top:1px solid rgba(200,241,53,.35);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:18px;max-width:330px;color:rgba(255,255,255,.62);}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.08em;color:#fff;margin-bottom:18px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--lime);}
.footer-col p{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.68);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .prep-grid{gap:40px;}
  .cta-grid{gap:40px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .hero-inner{padding:56px 0 48px;}
  .prep-grid{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .steps::before{display:none;}
  .spec-bar{grid-template-columns:repeat(2,1fr);}
  .spec:nth-child(2n){border-right:0;}
  .spec:nth-child(-n+2){border-bottom:1px solid var(--line);}
  .method{grid-template-columns:1fr;gap:12px;}
  .method-link{justify-content:flex-start;}
  .rank-strip{grid-template-columns:1fr;gap:14px;}
  .check-grid{grid-template-columns:1fr;gap:0;}
  .check:nth-last-child(-n+2){border-bottom:1px solid var(--line);}
  .check:last-child{border-bottom:0;}
  .cta-grid{grid-template-columns:1fr;}
  .cta-side{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .safe-wrap{padding:8px 22px;}
}
@media (max-width:767.98px){
  .header-inner{min-height:64px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-stats .stat{border-bottom:1px solid rgba(255,255,255,.1);}
  .hero-stats .stat:nth-child(2n){border-right:0;}
  .hero-stats .stat:nth-last-child(-n+2){border-bottom:0;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:0;}
  .steps::before{display:block;top:8px;bottom:8px;left:15px;right:auto;width:1px;height:auto;}
  .step{padding:24px 0 24px 56px;}
  .step .dot{top:26px;left:0;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .hero-inner{padding:44px 0 40px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn-lime,.hero-actions .btn-ghost{width:100%;}
  .spec b{font-size:26px;}
  .spec{padding:20px 16px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0E1211;
  --ink-2:#1B211F;
  --muted:#6E756F;
  --line:#E2DED4;
  --sand:#F5F2EB;
  --paper:#FFFFFF;
  --band:#EFEBE2;
  --lime:#C8F135;
  --lime-dark:#A9D31B;
  --accent2:#FF7A3D;
  --radius:6px;
  --pill:999px;
  --shadow-1:0 1px 0 var(--line);
  --shadow-2:0 10px 28px rgba(14,18,17,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Manrope","Inter",system-ui,sans-serif;
  --bs-body-bg:var(--sand);
  --bs-body-color:var(--ink-2);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius);
  --bs-link-color:var(--ink);
  --bs-link-hover-color:#000;
  --bs-primary:var(--lime);
  --bs-font-sans-serif:var(--font-cn);
  --bs-body-font-family:var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--sand);color:var(--ink-2);
  font-family:var(--font-cn);font-size:16.5px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:#000}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,241,53,.75);border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding-left:18px;padding-right:18px}}

.section{padding:96px 0}
.section--band{background:var(--band)}
.section--paper{background:var(--paper)}
@media (max-width:991.98px){.section{padding:72px 0}}
@media (max-width:575.98px){.section{padding:56px 0}}

.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;
  font-family:var(--font-num);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--lime-dark)}
.section-head h2{font-size:clamp(26px,3.4vw,42px);font-weight:900;margin-bottom:16px}
.section-head p{color:var(--muted);font-size:16.5px;line-height:1.9}
.section-head--light h2{color:#fff}
.section-head--light p{color:rgba(255,255,255,.66)}
.section-head--light .eyebrow{color:rgba(255,255,255,.55)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;border:1px solid transparent;border-radius:var(--pill);
  padding:0 24px;height:48px;font-weight:700;font-size:15.5px;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.btn i{transition:transform .2s var(--ease);font-size:13px}
.btn:hover i{transform:translateX(4px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--lime-dark);color:var(--ink);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.62)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink);background:var(--paper)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-block{width:100%;justify-content:center}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,18,17,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(14,18,17,.96);box-shadow:0 10px 30px rgba(14,18,17,.22)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:10px;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:800;font-size:16px;letter-spacing:-.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:#fff}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-text span{font-size:11.5px;color:rgba(255,255,255,.56);letter-spacing:.14em}
.nav-chips{display:flex;align-items:center;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.78);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{color:#fff;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06)}
.chip.is-active{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.chip.is-active:hover{background:var(--lime-dark);color:var(--ink)}
.header-right{display:flex;align-items:center;gap:20px;margin-left:8px}
.header-link{font-size:14.5px;color:rgba(255,255,255,.7);font-weight:600}
.header-link:hover{color:var(--lime)}
.nav-toggle{
  width:44px;height:44px;border-radius:var(--pill);border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#fff;display:grid;place-items:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}

.mobile-nav{background:var(--ink);color:#fff;width:min(88vw,360px)}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1);padding:20px 22px}
.mobile-nav .offcanvas-title{font-size:15px;letter-spacing:.12em;color:rgba(255,255,255,.6);font-weight:700;text-transform:uppercase}
.mobile-nav .offcanvas-body{padding:22px;display:flex;flex-direction:column;gap:10px}
.m-chip{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.82);font-weight:600;font-size:15px;
}
.m-chip:hover{background:rgba(255,255,255,.06);color:#fff}
.m-chip.is-active{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.mobile-cta{padding:18px 22px 26px;border-top:1px solid rgba(255,255,255,.1)}
.btn-close-custom{background:transparent;border:0;color:rgba(255,255,255,.7);font-size:18px;cursor:pointer;padding:6px}
.btn-close-custom:hover{color:var(--lime)}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:76px 0 60px}
.cat-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;opacity:.32;transform:scale(1.02)}
.cat-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,18,17,.96) 0%,rgba(14,18,17,.82) 48%,rgba(14,18,17,.46) 100%)}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.85fr);
  gap:56px;align-items:end}
.crumb{font-size:13px;color:rgba(255,255,255,.52);margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--lime)}
.crumb span.sep{opacity:.5}
.cat-hero h1{font-size:clamp(34px,5vw,58px);font-weight:900;color:#fff;letter-spacing:-.03em;line-height:1.1}
.h1-tag{display:block;font-size:clamp(14px,1.5vw,17px);font-weight:600;letter-spacing:.04em;
  color:var(--lime);margin-top:14px;font-family:var(--font-num)}
.cat-hero .lead{color:rgba(255,255,255,.7);font-size:16.5px;line-height:1.95;margin-top:22px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.cat-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);overflow:hidden}
.cat-stats li{background:rgba(14,18,17,.55);padding:22px 20px}
.cat-stats b{display:block;font-family:var(--font-num);font-weight:800;font-size:clamp(28px,3.2vw,42px);
  color:var(--lime);line-height:1;font-variant-numeric:tabular-nums}
.cat-stats span{display:block;margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 参数条 ---------- */
.spec-bar{background:var(--paper);border-bottom:1px solid var(--line)}
.spec-inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.spec-item{padding:30px 26px;border-left:1px solid var(--line)}
.spec-item:first-child{border-left:0;padding-left:0}
.spec-item span{display:block;font-size:13px;color:var(--muted);letter-spacing:.06em}
.spec-item b{display:block;margin-top:8px;font-size:19px;font-weight:800;color:var(--ink);
  font-family:var(--font-num);letter-spacing:-.01em}

/* ---------- 宽卡网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.media-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D3CEC2}
.media-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.media-card:hover .media-thumb img{transform:scale(1.04)}
.media-thumb::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(14,18,17,.9) 0%,rgba(14,18,17,.35) 46%,rgba(14,18,17,0) 100%)}
.media-caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px 22px;color:#fff}
.badge-cat{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--pill);
  background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.02em}
.media-caption h3{color:#fff;font-size:20px;font-weight:800;margin-top:10px;letter-spacing:-.01em}
.media-body{padding:18px 22px 22px;border-top:1px solid var(--line)}
.media-body p{color:var(--muted);font-size:15px;line-height:1.85}
.media-meta{display:flex;align-items:center;gap:14px;margin-top:14px;font-size:13px;color:var(--muted)}
.media-meta i{color:var(--lime-dark);margin-right:6px}

/* ---------- 时间线 ---------- */
.tl-list{border-top:1px solid var(--line)}
.tl-item{display:grid;grid-template-columns:150px minmax(0,1fr) 132px auto;gap:24px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line);border-radius:var(--radius);
  transition:background .2s var(--ease)}
.tl-item:hover{background:var(--band)}
.tl-date{font-family:var(--font-num);font-weight:800;font-size:16px;color:var(--ink);font-variant-numeric:tabular-nums}
.tl-date small{display:block;font-family:var(--font-cn);font-weight:600;font-size:12.5px;color:var(--muted);margin-top:2px}
.tl-main h3{font-size:18px;font-weight:800}
.tl-main p{color:var(--muted);font-size:14.5px;margin-top:6px}
.tl-state{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime-dark);flex:0 0 auto}
.dot--soon{background:var(--accent2)}
.tl-item > i{color:var(--muted);font-size:14px;transition:transform .2s var(--ease),color .2s var(--ease)}
.tl-item:hover > i{transform:translateX(4px);color:var(--ink)}

/* ---------- 排行 ---------- */
.rank-list{border-top:1px solid var(--line);counter-reset:rk}
.rank-item{display:grid;grid-template-columns:64px minmax(0,1fr) 110px;gap:22px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.rank-item:hover{background:var(--band)}
.rank-no{font-family:var(--font-num);font-weight:800;font-size:34px;color:var(--ink);opacity:.16;letter-spacing:-.04em}
.rank-main h3{font-size:18px;font-weight:800;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rank-main p{color:var(--muted);font-size:14.5px;margin-top:6px}
.rank-bar{margin-top:12px;height:6px;border-radius:var(--pill);background:var(--band);overflow:hidden}
.rank-bar i{display:block;height:100%;background:var(--lime);border-radius:var(--pill)}
.rank-meta{text-align:right}
.rank-meta b{display:block;font-family:var(--font-num);font-weight:800;font-size:22px;color:var(--ink);font-variant-numeric:tabular-nums}
.rank-meta span{font-size:12.5px;color:var(--muted)}
.tag-mini{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--pill);
  background:var(--band);color:var(--ink-2);font-size:12px;font-weight:600}
.tag-hot{background:var(--accent2);color:#fff}

/* ---------- FAQ ---------- */
.faq-accordion{border-top:1px solid var(--line)}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-accordion .accordion-button{
  background:transparent;color:var(--ink);font-size:17.5px;font-weight:800;letter-spacing:-.01em;
  padding:24px 56px 24px 0;box-shadow:none;position:relative;line-height:1.5;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink)}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none}
.faq-accordion .accordion-button::after{display:none}
.faq-accordion .accordion-button::before{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:600;font-size:18px;color:var(--ink);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .25s var(--ease);
}
.faq-accordion .accordion-button:hover::before{border-color:var(--ink)}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"−";background:var(--lime);border-color:var(--lime);transform:translateY(-50%) rotate(180deg);
}
.faq-accordion .accordion-body{padding:0 56px 26px 0;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--ink);color:#fff;padding:88px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:-10%;top:-40%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,53,.14),transparent 68%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px}
.cta-form-col h2{color:#fff;font-size:clamp(26px,3.2vw,38px);font-weight:900;margin-bottom:14px}
.cta-form-col > p{color:rgba(255,255,255,.66);font-size:16px;line-height:1.9;margin-bottom:30px}
.cta-form .field{margin-bottom:18px}
.cta-form label{display:block;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:8px;font-weight:600}
.cta-form label .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent2);
  margin-left:6px;vertical-align:middle}
.cta-form input,.cta-form select,.cta-form textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);color:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.cta-form textarea{height:auto;padding:12px 14px;resize:vertical;min-height:88px;line-height:1.7}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:rgba(255,255,255,.38)}
.cta-form select option{color:#111}
.cta-form input:focus,.cta-form select:focus,.cta-form textarea:focus{
  outline:none;border-color:var(--lime);background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(200,241,53,.35)
}
.form-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:14px}
.form-alert{margin-top:16px;padding:12px 16px;border-radius:var(--radius);
  background:rgba(200,241,53,.14);border:1px solid rgba(200,241,53,.5);color:var(--lime);font-size:14.5px;display:none}
.form-alert.is-show{display:block}
.cta-side{border-left:1px solid rgba(255,255,255,.14);padding-left:44px}
.cta-side h3{color:#fff;font-size:15px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:20px;
  font-family:var(--font-num);font-weight:600}
.benefit-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.78);font-size:15px}
.benefit-list li i{color:var(--lime);font-size:13px;margin-top:7px}
.cta-facts{margin-top:26px;font-size:14.5px;color:rgba(255,255,255,.62);line-height:2}
.cta-facts b{color:#fff;font-weight:700}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:72px 0 0;border-top:3px solid var(--lime)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{color:#fff;font-size:13px;letter-spacing:.08em;font-weight:700;margin-bottom:18px;text-transform:uppercase}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-col ul li a:hover{color:var(--lime)}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.6);margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.66)}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- 进入动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cat-hero-inner{grid-template-columns:1fr;gap:38px;align-items:start}
  .cat-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .spec-item{padding:24px 20px}
  .spec-item b{font-size:17px}
  .cta-inner{grid-template-columns:1fr;gap:40px}
  .cta-side{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding-left:0;padding-top:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767.98px){
  .card-grid{grid-template-columns:1fr}
  .spec-inner{grid-template-columns:1fr 1fr}
  .spec-item{border-left:1px solid var(--line);padding-left:20px}
  .spec-item:nth-child(2n+1){border-left:0;padding-left:0}
  .spec-item:nth-child(n+3){border-top:1px solid var(--line)}
  .tl-item{grid-template-columns:1fr;gap:10px;padding:20px 12px}
  .tl-item > i{display:none}
  .rank-item{grid-template-columns:44px minmax(0,1fr) 82px;gap:14px;padding:18px 12px}
  .rank-no{font-size:26px}
}
@media (max-width:575.98px){
  .cat-hero{padding:52px 0 44px}
  .cat-stats{grid-template-columns:1fr 1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  .card-grid{gap:18px}
  .media-body{padding:16px 18px 20px}
  .media-caption{padding:16px 18px}
  .media-caption h3{font-size:18px}
  .faq-accordion .accordion-button{font-size:16px;padding-right:48px}
  .faq-accordion .accordion-body{padding-right:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}