/* roulang page: index */
:root{
  --ink:#0B1416;
  --ink-2:#0F1E22;
  --ink-3:#081012;
  --jade:#1FBFA6;
  --jade-bright:#33D8BE;
  --jade-glow:rgba(31,191,166,.45);
  --sand:#E3B25C;
  --text:#E8F1F2;
  --text-2:#9DB3B6;
  --text-3:#6C8388;
  --line:#1E3236;
  --line-soft:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.10);
  --warn:#FF7A59;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 8px 28px rgba(31,191,166,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(31,191,166,.35);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
.section{padding:56px 0;position:relative}
@media (min-width:1024px){.section{padding:92px 0}}
.section-alt{background:var(--ink-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:34px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
.section-desc{margin-top:10px;color:var(--text-2);font-size:15px;max-width:660px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;color:var(--jade);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--jade);opacity:.7}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--jade);color:#04191A;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:var(--jade-bright);transform:translateY(-2px);box-shadow:0 12px 34px rgba(31,191,166,.5)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(31,191,166,.28)}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--text)}
.btn-ghost:hover{background:rgba(31,191,166,.12);border-color:var(--jade);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--jade);outline-offset:2px}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:default;transform:none}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 12px;
  font-size:12px;letter-spacing:.02em;line-height:1.4;color:var(--text-2);
  border:1px solid var(--glass-line);background:var(--glass);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.badge-jade{color:var(--jade);border-color:rgba(31,191,166,.4);background:rgba(31,191,166,.1)}
.badge-sand{color:var(--sand);border-color:rgba(227,178,92,.4);background:rgba(227,178,92,.08)}
.badge-solid{background:rgba(8,16,18,.78);color:var(--text);border-color:rgba(255,255,255,.16);font-variant-numeric:tabular-nums}

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(11,20,22,.72);
  border-bottom:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(8,16,18,.94);box-shadow:0 10px 30px rgba(0,0,0,.42)}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;
  max-width:1200px;margin:0 auto;padding:0 20px;height:72px;
  transition:height .25s ease;
}
@media (min-width:768px){.nav-wrap{padding:0 24px}}
.site-header.is-scrolled .nav-wrap{height:60px}
.nav-side{display:flex;align-items:center;gap:24px}
.nav-side a{position:relative;font-size:15px;color:var(--text-2);padding:6px 2px;transition:color .18s ease}
.nav-side a::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:transparent;transition:background-color .18s ease,box-shadow .18s ease}
.nav-side a:hover{color:var(--text)}
.nav-side a:hover::after{background:rgba(31,191,166,.5)}
.nav-side a.is-active{color:var(--text)}
.nav-side a.is-active::after{background:var(--jade);box-shadow:0 0 12px var(--jade-glow)}
.nav-left{grid-column:1;justify-self:start}
.nav-right{grid-column:3;justify-self:end;gap:18px}
.brand{grid-column:2;justify-self:center;display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-mark{position:relative;width:14px;height:14px;border-radius:4px;background:linear-gradient(135deg,var(--jade),var(--jade-bright));box-shadow:0 0 14px var(--jade-glow)}
.brand-mark::after{content:"";position:absolute;right:-7px;top:50%;width:3px;height:12px;border-radius:2px;background:var(--sand);transform:translateY(-50%) rotate(18deg)}
.menu-btn{
  grid-column:1;justify-self:start;width:54px;height:54px;display:none;place-items:center;
  border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  transition:border-color .18s ease,background-color .18s ease;
}
.menu-btn:hover{border-color:var(--jade);background:rgba(31,191,166,.1)}
.cta-mini{
  grid-column:3;justify-self:end;width:44px;height:44px;display:none;place-items:center;
  border-radius:999px;background:var(--jade);color:#04191A;box-shadow:var(--shadow-glow);
}
@media (max-width:1023px){
  .nav-side{display:none}
  .menu-btn{display:grid}
  .cta-mini{display:grid}
  .brand{font-size:17px}
}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(4,9,10,.62);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;width:82vw;max-width:360px;
  background:var(--ink-2);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);transition:transform .28s ease;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:8px;border-bottom:1px solid var(--line-soft)}
.drawer-close{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line);color:var(--text-2)}
.drawer-close:hover{border-color:var(--jade);color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;flex:1}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);transition:color .18s ease,padding-left .18s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--jade);padding-left:6px}

/* Hero */
.hero{position:relative;padding:128px 0 60px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;opacity:.3}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,22,.6) 0%,rgba(11,20,22,.88) 58%,var(--ink) 100%)}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) clamp(280px,31vw,392px);gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(30px,5vw,52px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.6vw,17px);line-height:1.95;color:var(--text-2);max-width:640px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{margin-top:44px;padding-top:24px;border-top:1px solid var(--line-soft);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:640px}
.stat-num{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.2;color:var(--jade);font-variant-numeric:tabular-nums}
.stat-label{margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.6}
.hero-media{
  position:relative;aspect-ratio:9/16;border-radius:var(--r-lg);overflow:hidden;background:var(--ink);
  border:1px solid rgba(31,191,166,.34);
  box-shadow:0 0 0 1px rgba(31,191,166,.1),0 24px 60px rgba(0,0,0,.55),0 0 46px rgba(31,191,166,.18);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,22,0) 34%,rgba(11,20,22,.94) 100%)}
.hero-media-tag{position:absolute;top:16px;left:16px;z-index:2}
.hero-media-cap{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;font-size:13px;line-height:1.6;color:var(--text-2)}
@media (max-width:1023px){
  .hero{padding:104px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{width:min(70vw,300px);margin:0 auto;aspect-ratio:4/5;max-height:60vh}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px}
}

/* 片段卡流 */
.rail-head-actions{display:flex;align-items:center;gap:10px}
.rail-btn{
  width:44px;height:44px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.rail-btn:hover{border-color:var(--jade);color:var(--jade);background:rgba(31,191,166,.1)}
@media (max-width:1023px){.rail-head-actions{display:none}}
.clip-rail{
  display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 20px 20px;margin:0 -20px;scrollbar-width:none;
}
@media (min-width:768px){.clip-rail{padding-left:24px;padding-right:24px;margin:0 -24px}}
.clip-rail::-webkit-scrollbar{display:none}
.clip-card{
  flex:0 0 clamp(240px,62vw,300px);scroll-snap-align:start;overflow:hidden;
  border-radius:var(--r-md);background:var(--ink-2);border:1px solid var(--line);
  box-shadow:var(--shadow-card);transition:transform .2s ease,border-color .2s ease;
}
.clip-card:hover{transform:translateY(-3px);border-color:rgba(31,191,166,.5)}
.clip-cover{position:relative;aspect-ratio:9/16;overflow:hidden;background:var(--ink)}
.clip-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.clip-card:hover .clip-cover img{transform:scale(1.04)}
.clip-dur{position:absolute;top:12px;left:12px}
.clip-body{padding:16px 16px 20px}
.clip-title{font-size:16px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clip-meta{margin-top:8px;font-size:12px;color:var(--text-3)}

/* 准备清单 */
.list-cols{display:grid;grid-template-columns:1fr;gap:0 44px;align-items:start}
@media (min-width:900px){.list-cols{grid-template-columns:1fr 1fr}}
.list-col{display:flex;flex-direction:column}
@media (min-width:900px){.list-col.second{padding-top:54px}}
.check-item{display:flex;gap:14px;padding:16px 4px;border-bottom:1px dashed rgba(255,255,255,.1);transition:background-color .2s ease}
.check-item:hover{background:rgba(31,191,166,.05)}
.check-num{
  flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--sand);border:1px solid rgba(227,178,92,.35);
  font-variant-numeric:tabular-nums;
}
.check-body{flex:1;min-width:0}
.check-title{font-size:16px;font-weight:600}
.check-desc{margin-top:4px;font-size:14px;line-height:1.75;color:var(--text-3)}
.check-ico{flex:0 0 auto;margin-top:6px;color:var(--jade);opacity:.8}
.list-media{margin-top:22px;aspect-ratio:3/4;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--ink)}
.list-media img{width:100%;height:100%;object-fit:cover}

/* 口碑 */
.quotes-mask{position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.quotes-track{display:flex;gap:14px;width:max-content;animation:marquee 46s linear infinite}
.quotes-mask:hover .quotes-track{animation-play-state:paused}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.quotes-track{animation:none}}
.quote-pill{
  display:flex;align-items:center;gap:12px;height:44px;padding:0 18px;border-radius:999px;
  border:1px solid var(--glass-line);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  font-size:14px;color:var(--text-2);
}
.quote-name{color:var(--text);font-weight:600;white-space:nowrap}
.quote-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px}
.stars{color:var(--sand);font-size:12px;letter-spacing:2px;white-space:nowrap}

/* CMS 最新信息 */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px;align-items:start}
@media (min-width:900px){.news-grid{grid-template-columns:7fr 5fr;gap:24px}}
.news-col{display:flex;flex-direction:column;gap:22px;min-width:0}
.news-col.second{padding-top:0}
@media (min-width:900px){.news-col.second{padding-top:46px}}
.news-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--ink-2);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(31,191,166,.5)}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:18px}
.news-title{font-size:17px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news-card:hover .news-title{color:var(--jade-bright)}
.news-sum{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--text-3)}
.news-link{position:absolute;inset:0;z-index:1}
.empty-state{
  grid-column:1 / -1;min-height:180px;display:grid;place-content:center;gap:14px;text-align:center;
  color:var(--text-3);border:1px dashed var(--line);border-radius:var(--r-md);padding:28px;
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--jade);transition:color .18s ease,gap .18s ease}
.link-more:hover{color:var(--jade-bright);gap:10px}

/* FAQ */
.faq-list{border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 0 14px 18px;cursor:pointer;font-size:16px;font-weight:600;line-height:1.6;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:50%;width:2px;height:0;border-radius:2px;
  background:var(--jade);box-shadow:0 0 12px var(--jade-glow);
  transform:translateY(-50%);transition:height .2s ease;
}
.faq-item[open] summary::before{height:26px}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease,background-color .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item[open] .faq-icon::before{background:var(--jade)}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-answer{padding:0 24px 20px 18px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* CTA + 表单 */
.join{background:linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%);border-top:1px solid var(--line-soft)}
.join-grid{display:grid;grid-template-columns:1fr;gap:38px;align-items:start}
@media (min-width:900px){.join-grid{grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:52px}}
.join-title{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
.join-desc{margin-top:14px;color:var(--text-2);font-size:15px;max-width:560px}
.join-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.join-point{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.join-point svg{flex:0 0 auto;margin-top:5px;color:var(--jade)}
.form-card{
  border-radius:var(--r-lg);border:1px solid var(--glass-line);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:26px;box-shadow:var(--shadow-card);
}
.form-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.form-note{font-size:13px;color:var(--text-3);margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:600px){.form-grid{grid-template-columns:1fr 1fr}}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;letter-spacing:.02em;color:var(--text-3);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border-radius:var(--r-xs);border:1px solid var(--line);background:rgba(255,255,255,.04);
  padding:12px 14px;font-size:15px;color:var(--text);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:#587075}
.field input:focus,.field textarea:focus{border-color:var(--jade);box-shadow:0 0 0 4px rgba(31,191,166,.16)}
.field-err{display:block;margin-top:6px;font-size:13px;color:var(--warn)}
.form-check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-3);margin:6px 0 20px}
.form-check input{flex:0 0 auto;width:18px;height:18px;margin-top:3px;accent-color:var(--jade)}

/* 页脚 */
.site-footer{background:var(--ink-3);border-top:1px solid var(--line-soft);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}}
.footer-brand .brand{justify-self:start;display:inline-flex;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-3);transition:color .18s ease}
.footer-links a:hover{color:var(--jade)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
@media (max-width:1023px){
  .site-footer{padding-bottom:96px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* 悬浮跟买件 */
.float-buy{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:12px;
  padding:10px 12px 10px 18px;border-radius:999px;
  border:1px solid rgba(31,191,166,.4);background:rgba(11,20,22,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 8px 28px rgba(31,191,166,.35);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-buy.is-visible{opacity:1;visibility:visible;transform:none}
.float-text{font-size:14px;color:var(--text-2);white-space:nowrap}
.float-close{width:32px;height:32px;border-radius:999px;display:grid;place-items:center;color:var(--text-3);border:1px solid var(--line)}
.float-close:hover{color:var(--text);border-color:var(--jade)}
@media (max-width:1023px){
  .float-buy{left:12px;right:12px;bottom:12px;height:64px;border-radius:16px;padding:8px 12px;justify-content:space-between;gap:8px}
  .float-text{display:none}
}

/* roulang page: article */
:root{
  --ink:#0B1416;
  --ink-2:#0F1E22;
  --ink-3:#081012;
  --jade:#1FBFA6;
  --jade-bright:#33D8BE;
  --jade-glow:rgba(31,191,166,.45);
  --sand:#E3B25C;
  --text:#E8F1F2;
  --text-2:#9DB3B6;
  --text-3:#6C8388;
  --line:#1E3236;
  --line-soft:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --warn:#FF7A59;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 8px 28px rgba(31,191,166,.35);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
.site-body{
  background:var(--ink);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0}
::selection{background:rgba(31,191,166,.32);color:#fff}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--jade-bright);
  outline-offset:2px;
}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,20,22,.74);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background-color .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{background:rgba(8,16,18,.92);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;
  transition:height .22s ease;
}
@media (min-width:768px){.header-inner{padding:0 24px}}
.site-header.is-scrolled .header-inner{height:60px}
.header-left{display:flex;align-items:center;gap:16px;min-width:0}
.header-right{display:flex;align-items:center;gap:18px;justify-content:flex-end;min-width:0}

.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--jade-bright)}
.brand-mark{
  position:relative;width:18px;height:18px;border:2px solid var(--jade);border-radius:5px;
  box-shadow:0 0 12px var(--jade-glow);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:3px;right:3px;top:5px;height:2px;border-radius:2px;
  background:var(--sand);transform:rotate(-30deg);transform-origin:left center;
}

.nav-side{display:flex;align-items:center;gap:26px;font-size:15px;color:var(--text-2);min-width:0}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-side a{position:relative;padding:6px 0;white-space:nowrap}
.nav-side a:hover{color:var(--jade-bright)}
.nav-side a.is-active{color:var(--text)}
.nav-side a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--jade);box-shadow:0 0 10px var(--jade-glow);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}
.btn-primary{background:var(--jade);color:#04191A;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:var(--jade-bright);transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,191,166,.5)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(31,191,166,.3)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--jade);background:rgba(31,191,166,.12);color:var(--jade-bright);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:default;transform:none}

.nav-toggle,.cta-icon{
  display:none;align-items:center;justify-content:center;width:52px;height:52px;margin-left:-10px;
  border-radius:14px;color:var(--text-2);border:1px solid transparent;
}
.nav-toggle:hover,.cta-icon:hover{color:var(--jade-bright);background:rgba(31,191,166,.1);border-color:var(--line)}
.cta-icon{margin-left:0;margin-right:-10px;width:44px;height:44px}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:90;
  background:#0C1719;border-left:1px solid var(--line-soft);
  transform:translateX(103%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:16px 20px 24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(4,9,10,.62);
  backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .26s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;color:var(--text-2)}
.drawer-close:hover{color:var(--jade-bright);background:rgba(31,191,166,.1)}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 4px;
  font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line-soft);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--jade-bright)}
.drawer-cta{margin-top:22px;width:100%}
.drawer-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.8}
@media (min-width:1024px){.drawer,.drawer-mask{display:none}}
@media (max-width:1023px){
  .nav-side{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .cta-icon{display:inline-flex}
  .brand{font-size:17px}
}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;
  padding:34px 0 4px;
  background-image:
    linear-gradient(180deg,rgba(11,20,22,.88) 0%,rgba(11,20,22,.97) 62%,var(--ink) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-soft);
}
@media (min-width:1024px){.article-hero{padding:46px 0 8px}}

.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--jade-bright)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .crumb-current{color:var(--text-2);max-width:min(52vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{padding:22px 0 34px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;line-height:1.6;border:1px solid var(--line);
  color:var(--text-2);background:var(--glass);
}
.badge-jade{border-color:rgba(31,191,166,.4);color:var(--jade-bright);background:rgba(31,191,166,.1)}
.badge-sand{border-color:rgba(227,178,92,.42);color:var(--sand);background:rgba(227,178,92,.08)}
.article-head h1{
  margin-top:16px;
  font-size:clamp(28px,4.6vw,46px);
  line-height:1.28;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px 16px;margin-top:18px;
  font-size:14px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}
.article-lead{
  margin-top:18px;max-width:720px;color:var(--text-2);font-size:15px;line-height:1.9;
}

/* ---------- 正文 ---------- */
.article-wrap{padding:44px 0 8px}
@media (min-width:1024px){.article-wrap{padding:64px 0 12px}}
.article-content{
  max-width:760px;margin:0 auto;color:#D6E3E5;font-size:16px;line-height:1.9;word-break:break-word;
}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  position:relative;margin:46px 0 16px;padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);line-height:1.4;color:var(--text);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:var(--jade);box-shadow:0 0 12px var(--jade-glow);
}
.article-content h3{margin:32px 0 12px;font-size:19px;line-height:1.5;color:var(--text)}
.article-content h4{margin:24px 0 10px;font-size:16px;color:var(--text)}
.article-content a{color:var(--jade-bright);border-bottom:1px solid rgba(31,191,166,.38)}
.article-content a:hover{border-bottom-color:var(--jade-bright)}
.article-content strong{color:var(--text)}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:24px}
.article-content li{margin-bottom:.55em;line-height:1.8}
.article-content img{border-radius:var(--r-md);margin:22px auto;width:100%}
.article-content figure{margin:24px 0}
.article-content figcaption{text-align:center;color:var(--text-3);font-size:14px;margin-top:8px}
.article-content blockquote{
  margin:26px 0;padding:16px 22px;border-left:3px solid var(--jade);border-radius:0 var(--r-md) var(--r-md) 0;
  background:var(--ink-2);color:var(--text-2);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content hr{border:0;border-top:1px solid var(--line-soft);margin:38px 0}
.article-content code{
  background:rgba(31,191,166,.12);color:var(--jade-bright);padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-content pre{
  background:var(--ink-3);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;overflow-x:auto;margin:0 0 1.4em;
}
.article-content pre code{background:none;color:#C9DADC;padding:0}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 1.6em;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-content th{background:var(--ink-2);color:var(--text)}

.inline-cta{
  max-width:760px;margin:44px auto 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 24px;border-radius:var(--r-lg);
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid rgba(31,191,166,.28);
  box-shadow:var(--shadow-card);
}
.inline-cta h3{font-size:18px;color:var(--text)}
.inline-cta p{margin-top:6px;font-size:14px;color:var(--text-2);max-width:460px}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;margin:0 auto;min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:48px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:var(--ink-2);
}
.empty-state .empty-title{font-size:20px;font-weight:700;color:var(--text)}
.empty-state .empty-desc{font-size:14px;color:var(--text-3)}
.empty-state .btn{margin-top:8px}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 0;border-top:1px solid var(--line-soft);margin-top:64px}
@media (min-width:1024px){.related{padding:88px 0 0;margin-top:84px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.8vw,30px)}
.section-head .sub{margin-top:8px;font-size:14px;color:var(--text-3)}
.text-link{font-size:14px;color:var(--text-2);border-bottom:1px solid var(--line);padding-bottom:2px}
.text-link:hover{color:var(--jade-bright);border-color:var(--jade-bright)}

.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);
  background:var(--ink-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.related-card:hover{transform:translateY(-2px);border-color:var(--jade)}
.related-card img{width:100%;aspect-ratio:16/9;border-radius:0}
.related-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px}
.related-body h3{font-size:16px;line-height:1.55;color:var(--text)}
.related-card:hover h3{color:var(--jade-bright)}
.related-time{font-size:13px;color:var(--text-3)}
.related-foot{display:flex;justify-content:center;margin-top:34px}

/* ---------- 悬浮跟买 ---------- */
.buy-float{
  position:fixed;right:24px;bottom:26px;z-index:55;
  display:flex;align-items:center;gap:14px;padding:10px 12px 10px 20px;border-radius:999px;
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);box-shadow:0 14px 36px rgba(0,0,0,.45);
  opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .24s ease,transform .24s ease;
}
.buy-float.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.buy-float-text{font-size:14px;color:var(--text-2);white-space:nowrap}
@media (max-width:767px){
  .buy-float{
    left:0;right:0;bottom:0;border-radius:0;justify-content:space-between;
    padding:10px 14px;border-left:0;border-right:0;border-bottom:0;min-height:64px;
  }
  .buy-float-text{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-3);border-top:1px solid var(--line-soft);
  padding:62px 0 26px;margin-top:84px;
}
@media (max-width:767px){.site-footer{padding-bottom:96px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .brand{grid-column:auto}
.footer-desc{margin-top:14px;max-width:340px;font-size:14px;line-height:1.85;color:var(--text-3)}
.footer-title{margin-bottom:14px;font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-2)}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3)}
.footer-links a{color:var(--text-3)}
.footer-links a:hover{color:var(--jade-bright)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}

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

/* roulang page: category1 */
:root{
    --bg:#0B1416;
    --bg-alt:#0F1E22;
    --bg-deep:#081012;
    --jade:#1FBFA6;
    --jade-bright:#33D8BE;
    --jade-glow:rgba(31,191,166,.45);
    --sand:#E3B25C;
    --text:#E8F1F2;
    --text-2:#9DB3B6;
    --text-3:#6C8388;
    --line:#1E3236;
    --line-soft:rgba(255,255,255,.08);
    --radius-lg:18px;
    --radius:14px;
    --radius-sm:12px;
    --shadow-card:0 12px 32px rgba(0,0,0,.35);
    --shadow-glow:0 8px 28px rgba(31,191,166,.35);
    --warn:#FF7A59;
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body.page{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  h1,h2,h3,h4,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  input,textarea,select{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--jade);outline-offset:2px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .container{padding:0 24px} }

  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:60;
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    background:rgba(11,20,22,.72);
    border-bottom:1px solid var(--line-soft);
    transition:background-color .25s ease,box-shadow .25s ease;
  }
  .site-header.is-scrolled{background:rgba(8,16,18,.94);box-shadow:0 10px 30px rgba(0,0,0,.35)}
  .header-inner{
    max-width:1200px;margin:0 auto;padding:0 20px;
    height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;
    transition:height .25s ease;
  }
  .site-header.is-scrolled .header-inner{height:60px}
  .nav-side{display:flex;align-items:center;gap:26px;font-size:15px;color:var(--text-2)}
  .nav-left{justify-self:start}
  .nav-right{justify-self:end;gap:20px}
  .nav-side a{position:relative;padding:6px 0;white-space:nowrap}
  .nav-side a:hover{color:var(--text)}
  .nav-side a::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--jade),var(--jade-bright));
    transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
    box-shadow:0 0 12px var(--jade-glow);
  }
  .nav-side a:hover::after{transform:scaleX(1)}
  .nav-side a.active{color:var(--text)}
  .nav-side a.active::after{transform:scaleX(1)}

  .brand{
    display:inline-flex;align-items:center;gap:10px;
    font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text);
    justify-self:center;white-space:nowrap;
  }
  .brand-mark{
    width:16px;height:16px;border-radius:4px;
    background:linear-gradient(135deg,var(--jade),var(--jade-bright));
    box-shadow:0 0 16px var(--jade-glow);
    position:relative;flex:none;
  }
  .brand-mark::after{
    content:"";position:absolute;left:4px;top:4px;width:3px;height:8px;
    background:var(--bg);border-radius:1px;transform:skewX(-14deg);
  }
  .brand:hover{color:var(--jade-bright)}

  .menu-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border-radius:var(--radius-sm);border:1px solid var(--line-soft);color:var(--text);
    justify-self:start;
  }
  .menu-toggle:hover{border-color:var(--jade);color:var(--jade-bright)}
  .header-cta{
    display:inline-flex;align-items:center;gap:6px;
    padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
    background:linear-gradient(135deg,var(--jade),var(--jade-bright));
    color:#04110F;box-shadow:var(--shadow-glow);
    transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  }
  .header-cta:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 12px 32px var(--jade-glow)}
  .header-cta:active{transform:translateY(0);box-shadow:0 4px 16px rgba(31,191,166,.28)}

  /* 移动抽屉 */
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:80;
    background:rgba(9,18,20,.97);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-left:1px solid var(--line-soft);
    transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;padding:22px 22px 28px;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
  .drawer-title{font-size:15px;color:var(--text-3);letter-spacing:.06em}
  .drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:1px solid var(--line-soft)}
  .drawer-close:hover{border-color:var(--jade);color:var(--jade-bright)}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;padding:0 4px;border-bottom:1px solid var(--line-soft);
    font-size:16px;color:var(--text-2);
  }
  .drawer-link:hover{color:var(--jade-bright)}
  .drawer-link.active{color:var(--jade-bright)}
  .drawer-foot{margin-top:auto;padding-top:20px}
  .drawer-scrim{
    position:fixed;inset:0;background:rgba(3,8,9,.6);z-index:70;opacity:0;pointer-events:none;transition:opacity .28s ease;
  }
  .drawer-scrim.is-open{opacity:1;pointer-events:auto}

  @media (max-width:1023px){
    .header-inner{grid-template-columns:44px 1fr auto;height:64px}
    .site-header.is-scrolled .header-inner{height:58px}
    .nav-side{display:none}
    .menu-toggle{display:inline-flex}
    .brand{font-size:17px}
  }
  @media (max-width:520px){
    .header-cta{padding:8px 14px;font-size:13px}
    .brand{gap:8px;font-size:16px}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;letter-spacing:.01em;
    transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--jade),var(--jade-bright));
    color:#04110F;box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 14px 36px var(--jade-glow)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(31,191,166,.28)}
  .btn-ghost{
    border:1px solid var(--line);background:transparent;color:var(--text);
  }
  .btn-ghost:hover{border-color:var(--jade);color:var(--jade-bright);background:rgba(31,191,166,.12)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px}
  .btn[disabled]{opacity:.45;box-shadow:none;cursor:default;transform:none}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;color:var(--text-2);
    border:1px solid var(--line);background:rgba(255,255,255,.04);
  }
  .badge-jade{border-color:rgba(31,191,166,.45);color:var(--jade-bright);background:rgba(31,191,166,.10)}
  .badge-sand{border-color:rgba(227,178,92,.4);color:var(--sand);background:rgba(227,178,92,.08)}

  /* ============ 首屏 ============ */
  .hero{position:relative;padding:128px 0 68px;overflow:hidden;isolation:isolate}
  .hero-bg{
    position:absolute;inset:0;z-index:-2;
    background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
    opacity:.30;
  }
  .hero-veil{
    position:absolute;inset:0;z-index:-1;
    background:linear-gradient(180deg,rgba(11,20,22,.55) 0%,rgba(11,20,22,.9) 58%,var(--bg) 100%);
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
  .breadcrumb a:hover{color:var(--jade-bright)}
  .breadcrumb .sep{color:var(--line)}
  .breadcrumb .now{color:var(--text-2)}

  .hero h1{
    font-size:clamp(30px,5vw,52px);line-height:1.25;font-weight:700;letter-spacing:.01em;
  }
  .hero-sub{
    margin-top:18px;max-width:62ch;font-size:clamp(15px,1.6vw,17px);color:var(--text-2);
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

  .hero-panel{
    margin-top:44px;
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:1px;background:var(--line-soft);
    border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  }
  .hero-stat{background:rgba(255,255,255,.04);padding:22px 20px}
  .hero-stat b{display:block;font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--jade-bright);line-height:1.2}
  .hero-stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}
  @media (max-width:640px){
    .hero{padding:104px 0 52px}
    .hero-panel{grid-template-columns:1fr}
    .hero-actions .btn{flex:1 1 100%}
  }

  /* ============ 通用板块 ============ */
  .section{padding:72px 0}
  .section-alt{background:var(--bg-alt)}
  @media (max-width:767px){ .section{padding:52px 0} }

  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px}
  .section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
  .section-head .lead{margin-top:12px;max-width:64ch;color:var(--text-2);font-size:15px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
    color:var(--jade-bright);margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--jade);box-shadow:0 0 10px var(--jade-glow)}
  .text-link{font-size:14px;color:var(--text-2);border-bottom:1px solid var(--line)}
  .text-link:hover{color:var(--jade-bright);border-color:var(--jade)}

  /* ============ 时间轴 ============ */
  .timeline{position:relative;padding-left:0}
  .timeline::before{
    content:"";position:absolute;left:17px;top:10px;bottom:26px;width:2px;
    background:linear-gradient(180deg,rgba(31,191,166,.85),rgba(31,191,166,.25) 55%,rgba(31,191,166,.04));
  }
  .tl-item{position:relative;padding:0 0 34px 58px}
  .tl-item:last-child{padding-bottom:0}
  .tl-dot{
    position:absolute;left:6px;top:8px;width:24px;height:24px;border-radius:50%;
    background:var(--bg-alt);border:2px solid var(--jade);
    box-shadow:0 0 0 4px rgba(31,191,166,.12),0 0 20px var(--jade-glow);
  }
  .tl-dot::after{content:"";position:absolute;inset:6px;border-radius:50%;background:var(--jade-bright)}
  .tl-card{
    background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:24px 24px 22px;box-shadow:var(--shadow-card);
    transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  }
  .section-alt .tl-card{background:var(--bg)}
  .tl-card:hover{border-color:rgba(31,191,166,.45);transform:translateY(-2px)}
  .tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
  .tl-step{
    display:inline-flex;align-items:center;justify-content:center;
    width:30px;height:30px;border-radius:9px;flex:none;
    font-size:13px;font-weight:700;color:var(--sand);
    border:1px solid rgba(227,178,92,.42);background:rgba(227,178,92,.08);
  }
  .tl-card h3{font-size:20px;line-height:1.5;font-weight:700}
  .tl-card p{color:var(--text-2);font-size:15px}
  .tl-media{
    margin-top:16px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
    gap:16px;align-items:stretch;
  }
  .tl-media img{
    width:100%;height:100%;min-height:180px;object-fit:cover;
    border-radius:var(--radius);border:1px solid var(--line);
  }
  .tl-points{
    background:rgba(255,255,255,.03);border:1px solid var(--line-soft);border-radius:var(--radius);
    padding:16px 18px;
  }
  .tl-points li{
    position:relative;padding-left:20px;font-size:14px;color:var(--text-2);line-height:1.8;
  }
  .tl-points li + li{margin-top:8px}
  .tl-points li::before{
    content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;
    background:var(--jade);transform:rotate(45deg);
  }
  @media (max-width:767px){
    .tl-media{grid-template-columns:1fr}
    .tl-media img{min-height:200px}
    .tl-item{padding-left:48px}
    .timeline::before{left:15px}
    .tl-dot{left:4px}
  }

  /* ============ 要点收束 ============ */
  .check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .check-item{
    display:flex;gap:14px;padding:20px;border-radius:var(--radius);
    background:var(--bg);border:1px solid var(--line);
    transition:border-color .22s ease,transform .22s ease;
  }
  .section-alt .check-item{background:var(--bg-alt)}
  .check-item:hover{border-color:rgba(31,191,166,.4);transform:translateY(-2px)}
  .check-icon{
    width:26px;height:26px;flex:none;border-radius:8px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(31,191,166,.12);border:1px solid rgba(31,191,166,.4);color:var(--jade-bright);
  }
  .check-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
  .check-item p{font-size:14px;color:var(--text-2);line-height:1.8}
  @media (max-width:767px){ .check-grid{grid-template-columns:1fr} }

  /* ============ 口碑胶囊 ============ */
  .marquee-wrap{overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
  .marquee{display:flex;gap:14px;width:max-content;animation:slide 42s linear infinite}
  .marquee-wrap:hover .marquee{animation-play-state:paused}
  @keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .pill{
    display:inline-flex;align-items:center;gap:12px;height:44px;padding:0 18px;
    border-radius:999px;white-space:nowrap;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    font-size:14px;color:var(--text-2);
  }
  .pill b{color:var(--text);font-weight:600}
  .pill .stars{color:var(--sand);letter-spacing:2px;font-size:12px}
  @media (prefers-reduced-motion:reduce){ .marquee{animation:none} }

  /* ============ FAQ ============ */
  .faq-list{border-top:1px solid var(--line-soft)}
  .faq-item{border-bottom:1px solid var(--line-soft)}
  .faq-item summary{
    list-style:none;cursor:pointer;min-height:56px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:16px 0 16px 0;font-size:17px;font-weight:600;color:var(--text);
    transition:color .18s ease,padding-left .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--jade-bright)}
  .faq-item[open] summary{color:var(--jade-bright);padding-left:14px;position:relative}
  .faq-item[open] summary::before{
    content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:2px;
    background:var(--jade-bright);box-shadow:0 0 12px var(--jade-glow);
  }
  .faq-icon{
    width:28px;height:28px;flex:none;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--text-2);transition:transform .25s ease,color .2s ease,border-color .2s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--jade-bright);border-color:rgba(31,191,166,.5)}
  .faq-body{padding:0 0 22px 14px;color:var(--text-2);font-size:15px;max-width:78ch}

  /* ============ CTA + 表单 ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:22px;
    border:1px solid var(--line);background:var(--bg-alt);
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);
    gap:40px;padding:44px;
  }
  .cta-band::before{
    content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
    background:radial-gradient(circle,rgba(31,191,166,.22),transparent 68%);
    pointer-events:none;
  }
  .cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.35;font-weight:700}
  .cta-band .cta-lead{margin-top:14px;color:var(--text-2);font-size:15px;max-width:46ch}
  .cta-points{margin-top:24px;display:grid;gap:12px}
  .cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2)}
  .cta-points .dot{width:7px;height:7px;margin-top:9px;border-radius:2px;flex:none;background:var(--sand);transform:rotate(45deg)}

  .form-card{
    position:relative;z-index:1;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-card);
  }
  .form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .field{margin-bottom:16px}
  .field label{display:block;font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-bottom:7px}
  .field input,.field textarea,.field select{
    width:100%;background:rgba(255,255,255,.04);
    border:1px solid var(--line);border-radius:var(--radius-sm);
    padding:12px 14px;font-size:14px;color:var(--text);
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
  .field input:focus,.field textarea:focus,.field select:focus{
    outline:none;border-color:var(--jade);box-shadow:0 0 0 4px rgba(31,191,166,.16);
    background:rgba(255,255,255,.06);
  }
  .field textarea{min-height:104px;resize:vertical;line-height:1.8}
  .field-hint{font-size:12px;color:var(--text-3);margin-top:6px}
  .form-foot{margin-top:6px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
  .form-note{font-size:12px;color:var(--text-3)}
  @media (max-width:900px){
    .cta-band{grid-template-columns:1fr;padding:30px 22px;gap:28px}
    .form-row{grid-template-columns:1fr}
  }

  .back-home{margin-top:28px;display:flex;justify-content:center}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--bg-deep);border-top:1px solid var(--line-soft);padding:60px 0 28px;margin-top:12px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
  .footer-desc{margin-top:16px;font-size:14px;color:var(--text-3);max-width:34ch;line-height:1.9}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--text-3)}
  .footer-links a:hover{color:var(--jade-bright)}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--text-3);
  }
  .site-footer .brand{justify-self:start}
  @media (max-width:900px){ .footer-grid{grid-template-columns:1fr 1fr} }
  @media (max-width:600px){
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .site-footer{padding-bottom:96px}
  }

  /* ============ 悬浮跟买件 ============ */
  .float-buy{
    position:fixed;right:24px;bottom:24px;z-index:55;
    display:inline-flex;align-items:center;gap:12px;
    padding:10px 12px 10px 20px;border-radius:999px;
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    transform:translateY(20px);opacity:0;pointer-events:none;
    transition:transform .3s ease,opacity .3s ease;
  }
  .float-buy.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
  .float-buy .fb-text{font-size:14px;color:var(--text-2);white-space:nowrap}
  .float-buy .fb-close{
    width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--text-3);flex:none;
  }
  .float-buy .fb-close:hover{color:var(--text);border-color:var(--jade)}
  @media (max-width:640px){
    .float-buy{
      left:12px;right:12px;bottom:12px;border-radius:16px;padding:10px 12px;
      justify-content:space-between;
    }
    .float-buy .fb-text{font-size:13px}
  }

/* roulang page: category2 */
:root{
  --ink:#0B1416;
  --panel:#0F1E22;
  --panel-2:#122429;
  --footer:#081012;
  --jade:#1FBFA6;
  --jade-light:#33D8BE;
  --jade-glow:rgba(31,191,166,.45);
  --sand:#E3B25C;
  --text:#E8F1F2;
  --text-2:#9DB3B6;
  --text-3:#6C8388;
  --line:#1E3236;
  --hair:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 8px 28px rgba(31,191,166,.35);
  --font-title:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --font-body:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(31,191,166,.32);color:#fff}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(11,20,22,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hair);
  transition:background .25s ease, padding .25s ease;
}
.site-header.is-scrolled{background:rgba(8,16,18,.92)}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-title);font-weight:700;font-size:19px;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.brand-mark{
  width:20px;height:20px;border-radius:6px;
  background:linear-gradient(135deg,var(--jade) 0%,var(--jade-light) 55%,rgba(31,191,166,.35) 100%);
  box-shadow:0 0 16px var(--jade-glow);
  position:relative;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;right:4px;top:4px;width:5px;height:12px;
  background:var(--ink);border-radius:2px;transform:skewX(-14deg);
}
.nav-left,.nav-right{display:flex;align-items:center;gap:4px}
.nav-right{justify-content:flex-end;gap:10px}
.nav-side a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:var(--r-pill);
  position:relative;transition:color .18s ease, background .18s ease;
}
.nav-side a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-side a.active{color:var(--text)}
.nav-side a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--jade);box-shadow:0 0 10px var(--jade-glow);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--jade);color:#04191a;font-weight:600;font-size:14.5px;
  box-shadow:var(--shadow-glow);border:1px solid rgba(255,255,255,.16);
  transition:transform .12s ease, background .2s ease, box-shadow .2s ease;
}
.nav-cta:hover{background:var(--jade-light);transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,191,166,.5)}
.nav-cta:active{transform:translateY(0);box-shadow:0 4px 14px rgba(31,191,166,.28)}
.nav-toggle{
  display:none;width:46px;height:46px;align-items:center;justify-content:center;
  border-radius:var(--r-sm);border:1px solid var(--hair);background:var(--glass);
  color:var(--text);
}
.nav-toggle:hover{border-color:rgba(31,191,166,.5)}
.nav-cta-mobile{
  display:none;width:46px;height:46px;align-items:center;justify-content:center;
  border-radius:var(--r-sm);background:var(--jade);color:#04191a;
  box-shadow:0 8px 22px rgba(31,191,166,.35);
}
.nav-slot-left{display:flex;align-items:center;gap:8px}
.nav-slot-right{display:flex;align-items:center;justify-content:flex-end;gap:8px}

@media (max-width:1023px){
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta-mobile{display:inline-flex}
  .nav-wrap{height:64px}
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,10,11,.66);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .25s ease, visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:95;
  background:var(--panel);border-left:1px solid var(--hair);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px 18px 24px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:14px;color:var(--text-3);letter-spacing:.06em}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-sm);border:1px solid var(--hair)}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-nav a{
  display:flex;align-items:center;height:52px;padding:0 14px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15.5px;border-bottom:1px solid var(--hair);
  transition:background .18s ease,color .18s ease;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-nav a.active{color:var(--jade)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-note{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .12s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease;
}
.btn-primary{
  background:var(--jade);color:#04191a;border:1px solid rgba(255,255,255,.16);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:var(--jade-light);transform:translateY(-2px);box-shadow:0 14px 34px rgba(31,191,166,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(31,191,166,.3)}
.btn-ghost{
  background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{background:rgba(31,191,166,.12);border-color:var(--jade);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:default;transform:none}

/* ---------- Tags / badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 13px;
  border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.02em;
  color:var(--text-2);background:rgba(255,255,255,.05);
  border:1px solid var(--hair);
}
.tag-jade{color:var(--jade);border-color:rgba(31,191,166,.4);background:rgba(31,191,166,.08)}
.tag-sand{color:var(--sand);border-color:rgba(227,178,92,.36);background:rgba(227,178,92,.08)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:136px 0 66px;
  background-image:linear-gradient(180deg,rgba(11,20,22,.86) 0%,rgba(11,20,22,.92) 55%,rgba(11,20,22,1) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;left:50%;top:-160px;width:720px;height:420px;
  transform:translateX(-50%);pointer-events:none;
  background:radial-gradient(circle,rgba(31,191,166,.20) 0%,rgba(31,191,166,0) 68%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .18s ease}
.breadcrumb a:hover{color:var(--jade)}
.breadcrumb span.sep{color:var(--line)}
.breadcrumb .current{color:var(--text-2)}
.cat-hero h1{
  font-family:var(--font-title);
  font-size:clamp(30px,5vw,52px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  max-width:900px;
}
.cat-hero h1 em{font-style:normal;color:var(--jade)}
.hero-sub{
  margin-top:18px;max-width:720px;font-size:16.5px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  margin-top:46px;display:grid;gap:14px;
  grid-template-columns:repeat(3,minmax(0,1fr));
}
.stat-card{
  border:1px solid var(--hair);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-radius:var(--r-md);padding:18px 20px;
}
.stat-num{
  font-family:var(--font-title);font-size:clamp(24px,3vw,32px);font-weight:700;
  color:var(--jade);font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-label{font-size:13.5px;color:var(--text-3);margin-top:4px}
@media (max-width:640px){
  .cat-hero{padding:112px 0 52px}
  .hero-stats{grid-template-columns:1fr;margin-top:34px}
}

/* ---------- Sections ---------- */
.section{padding:88px 0 0}
.section:last-of-type{padding-bottom:96px}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--jade);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--jade);box-shadow:0 0 10px var(--jade-glow)}
.section-head h2{
  font-family:var(--font-title);font-size:clamp(24px,3.2vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
@media (max-width:640px){.section{padding:56px 0 0}.section:last-of-type{padding-bottom:64px}}

.alt-band{background:var(--panel);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.alt-band .section{padding-top:88px;padding-bottom:88px}
@media (max-width:640px){.alt-band .section{padding-top:56px;padding-bottom:56px}}

/* ---------- Case rows ---------- */
.case-list{display:flex;flex-direction:column;gap:72px}
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.case-row .case-media{order:1}
.case-row .case-body{order:2}
.case-row.reverse .case-media{order:2}
.case-row.reverse .case-body{order:1}
.case-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--hair);box-shadow:var(--shadow-card);background:var(--ink);
}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,20,22,0) 46%,rgba(11,20,22,.72) 100%);
}
.media-badge{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.02em;
  background:rgba(11,20,22,.72);border:1px solid rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text);
}
.media-caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-2);
}
.case-index{
  font-family:var(--font-title);font-size:14px;color:var(--sand);
  font-variant-numeric:tabular-nums;letter-spacing:.1em;margin-bottom:12px;
}
.case-body h3{
  font-family:var(--font-title);font-size:clamp(20px,2.4vw,26px);
  font-weight:700;line-height:1.36;letter-spacing:-.01em;
}
.case-body p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.88}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.75}
.point-list svg{flex:none;margin-top:6px}
.case-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;
  padding-top:18px;border-top:1px dashed rgba(255,255,255,.12);
}
.case-meta span{font-size:13px;color:var(--text-3)}
.case-meta b{color:var(--text-2);font-weight:600}
@media (max-width:900px){
  .case-list{gap:52px}
  .case-row{grid-template-columns:1fr;gap:24px}
  .case-row .case-media,.case-row.reverse .case-media{order:1}
  .case-row .case-body,.case-row.reverse .case-body{order:2}
}

/* ---------- Compare grid ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.compare-card:hover{transform:translateY(-2px);border-color:rgba(31,191,166,.5);box-shadow:var(--shadow-card)}
.compare-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.compare-top h3{font-size:17.5px;font-weight:700;font-family:var(--font-title)}
.compare-num{
  font-family:var(--font-title);font-size:26px;font-weight:700;color:var(--jade);
  font-variant-numeric:tabular-nums;line-height:1;
}
.kv-list{margin-top:6px}
.kv-list div{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.1);
}
.kv-list div:last-child{border-bottom:none}
.kv-list dt{font-size:14px;color:var(--text-3)}
.kv-list dd{font-size:14.5px;color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
.compare-card p{margin-top:12px;font-size:14.5px;color:var(--text-2)}
@media (max-width:768px){.compare-grid{grid-template-columns:1fr}}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  position:relative;background:var(--panel-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 22px 24px;
  transition:border-color .2s ease, transform .2s ease;
}
.step:hover{border-color:rgba(31,191,166,.5);transform:translateY(-2px)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:16px;
  background:rgba(227,178,92,.12);border:1px solid rgba(227,178,92,.38);
  color:var(--sand);font-family:var(--font-title);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:700;font-family:var(--font-title)}
.step p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.step::after{
  content:"";position:absolute;right:-11px;top:42px;width:22px;height:1px;
  background:linear-gradient(90deg,var(--line),rgba(31,191,166,.5),var(--line));
}
.step:last-child::after{display:none}
@media (max-width:1023px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step:nth-child(2)::after{display:none}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
}

/* ---------- Voices ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.voice{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;display:flex;flex-direction:column;
  transition:border-color .2s ease, transform .2s ease;
}
.voice:hover{border-color:rgba(31,191,166,.45);transform:translateY(-2px)}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,191,166,.9),rgba(31,191,166,.3));
  color:#04191a;font-weight:700;font-size:15px;
}
.voice-name{font-size:14.5px;font-weight:600}
.voice-role{font-size:12.5px;color:var(--text-3)}
.voice blockquote{font-size:15px;color:var(--text-2);line-height:1.85;border-left:2px solid rgba(31,191,166,.5);padding-left:14px}
.stars{display:flex;gap:3px;margin-top:16px}
@media (max-width:900px){.voice-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--hair)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:56px;padding:16px 0 16px 0;position:relative;
  font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--jade)}
.faq-q{display:flex;align-items:center;gap:14px}
.faq-item summary .faq-mark{flex:none;transition:transform .25s ease;color:var(--text-2)}
.faq-item[open] summary{color:var(--jade)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--jade);box-shadow:0 0 12px var(--jade-glow);border-radius:2px;
}
.faq-item[open] summary{padding-left:18px}
.faq-item[open] summary .faq-mark{transform:rotate(45deg);color:var(--jade)}
.faq-a{padding:0 24px 20px 18px;font-size:15px;color:var(--text-2);line-height:1.9;max-width:760px}

/* ---------- CTA + Form ---------- */
.cta-band{
  background:linear-gradient(180deg,var(--panel) 0%,rgba(11,20,22,1) 100%);
  border-top:1px solid var(--hair);
  padding:88px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-copy h2{
  font-family:var(--font-title);font-size:clamp(24px,3.2vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.cta-copy p{margin-top:16px;color:var(--text-2);font-size:15.5px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.cta-points svg{flex:none;margin-top:6px}
.form-card{
  background:var(--glass);border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--shadow-card);
}
.form-card h3{font-family:var(--font-title);font-size:19px;font-weight:700;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:12.5px;color:var(--text-3);letter-spacing:.03em}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 14px;font-size:15px;color:var(--text);
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#5C7276}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--jade);background:rgba(31,191,166,.06);
  box-shadow:0 0 0 4px rgba(31,191,166,.16);
}
.field.has-error input,.field.has-error textarea{border-color:#FF7A59}
.field-error{font-size:13px;color:#FF7A59;display:none}
.field.has-error .field-error{display:block}
.consent{display:flex;align-items:flex-start;gap:10px;grid-column:1 / -1;font-size:13.5px;color:var(--text-3);line-height:1.7}
.consent input{width:18px;height:18px;accent-color:var(--jade);margin-top:3px;flex:none}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:4px}
.form-hint{font-size:12.5px;color:var(--text-3)}
@media (max-width:900px){
  .cta-band{padding:56px 0}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .form-grid{grid-template-columns:1fr}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--footer);border-top:1px solid var(--hair);
  padding:72px 0 40px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--hair);
}
.footer-brand .brand{font-size:18px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-3);transition:color .18s ease}
.footer-links a:hover{color:var(--jade)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;padding-top:24px;font-size:13px;color:var(--text-3);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:560px){
  .site-footer{padding:56px 0 32px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
.section[id]{scroll-margin-top:96px}

/* roulang page: category3 */
:root{
    --ink:#0B1416;
    --ink-2:#0F1E22;
    --ink-3:#081012;
    --jade:#1FBFA6;
    --jade-bright:#33D8BE;
    --jade-glow:rgba(31,191,166,.45);
    --sand:#E3B25C;
    --text:#E8F1F2;
    --text-2:#9DB3B6;
    --text-3:#6C8388;
    --border:#1E3236;
    --line:rgba(255,255,255,.08);
    --glass:rgba(255,255,255,.06);
    --danger:#FF7A59;
    --radius-l:18px;
    --radius-m:14px;
    --radius-s:12px;
    --shadow-card:0 12px 32px rgba(0,0,0,.35);
    --shadow-btn:0 8px 28px rgba(31,191,166,.35);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--ink);
    color:var(--text);
    font-family:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  summary{list-style:none}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  :focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 24px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,20,22,.80);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.10);
    transition:background .22s ease,border-color .22s ease;
  }
  .site-header.is-compact{background:rgba(8,16,18,.94)}
  .header-inner{
    position:relative;
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:18px;
    height:72px;
    transition:height .22s ease;
  }
  .site-header.is-compact .header-inner{height:60px}
  .nav-side{display:flex;align-items:center;gap:26px}
  .nav-right{justify-content:flex-end;gap:18px}
  .nav-side a{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:44px;
    color:var(--text-2);
    font-size:15px;
    transition:color .18s ease;
  }
  .nav-side a:hover{color:var(--text)}
  .nav-side a.active{color:var(--text)}
  .nav-side a.active::after{
    content:"";
    position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
    background:var(--jade);
    box-shadow:0 0 12px var(--jade-glow);
  }
  .brand{
    display:inline-flex;align-items:center;gap:10px;
    font-size:19px;font-weight:700;letter-spacing:.01em;
    color:var(--text);white-space:nowrap;
  }
  .brand-mark{
    width:16px;height:16px;border-radius:5px;flex:0 0 auto;
    background:linear-gradient(135deg,var(--jade-bright),var(--jade));
    box-shadow:0 0 16px var(--jade-glow);
    position:relative;
  }
  .brand-mark::after{
    content:"";position:absolute;left:3px;top:3px;width:5px;height:10px;
    border-radius:2px;background:rgba(7,26,24,.55);transform:skewX(-14deg);
  }

  .nav-toggle{
    display:none;width:54px;height:54px;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:12px;cursor:pointer;
  }
  .nav-toggle:hover{border-color:rgba(31,191,166,.5)}
  .nav-cta-icon{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border-radius:12px;border:1px solid rgba(31,191,166,.45);
    background:rgba(31,191,166,.12);cursor:pointer;
  }

  .drawer-overlay{
    position:fixed;inset:0;background:rgba(3,8,9,.66);z-index:70;
    opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
  }
  .drawer-overlay.open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:80;
    background:#0C181B;border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .26s ease;
    display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
  .drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center}
  .drawer-close:hover{border-color:rgba(31,191,166,.5)}
  .drawer-links{display:flex;flex-direction:column;margin-top:8px}
  .drawer-links a{
    display:flex;align-items:center;min-height:52px;padding:0 12px;border-radius:12px;
    color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line);
  }
  .drawer-links a:hover{color:var(--text);background:rgba(31,191,166,.08)}
  .drawer-links a.active{color:var(--jade-bright)}
  .drawer-foot{margin-top:auto;padding-top:20px}

  /* ---------- buttons / badges ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 24px;border-radius:999px;
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:transform .12s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--jade);color:#04211D;box-shadow:var(--shadow-btn)}
  .btn-primary:hover{background:var(--jade-bright);transform:translateY(-2px);box-shadow:0 12px 34px rgba(31,191,166,.5)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(31,191,166,.28)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
  .btn-ghost:hover{background:rgba(31,191,166,.12);border-color:var(--jade);color:var(--jade-bright)}
  .btn-sm{min-height:38px;padding:0 18px;font-size:14px}
  .btn-block{width:100%}
  .btn[disabled]{opacity:.45;box-shadow:none;cursor:default;transform:none}

  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;
    border:1px solid rgba(31,191,166,.35);
    color:var(--jade-bright);background:rgba(31,191,166,.08);
  }
  .badge-sand{border-color:rgba(227,178,92,.45);color:var(--sand);background:rgba(227,178,92,.08)}

  .eyebrow{font-size:12px;letter-spacing:.14em;color:var(--jade);text-transform:uppercase;font-weight:600}
  .section-title{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.3;margin-top:10px}
  .section-sub{color:var(--text-2);font-size:15px;max-width:64ch;margin-top:12px}

  /* ---------- sections ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:96px 0}}
  .section-alt{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}

  /* ---------- hero ---------- */
  .page-hero{position:relative;overflow:hidden;padding:32px 0 0}
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity:.16;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(11,20,22,.55),rgba(11,20,22,.92) 78%,var(--ink));
  }
  .page-hero .container{position:relative;z-index:2}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
  .breadcrumb a:hover{color:var(--jade-bright)}
  .breadcrumb .sep{color:#3A4E52}
  .breadcrumb .current{color:var(--text-2)}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;margin-top:22px}
  .hero-title{font-size:clamp(30px,5vw,52px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
  .hero-title .accent{color:var(--jade-bright)}
  .hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:46ch}
  .hero-lead{margin-top:14px;font-size:15px;color:var(--text-3);max-width:52ch}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-media{
    border-radius:22px;overflow:hidden;border:1px solid rgba(31,191,166,.28);
    box-shadow:0 18px 48px rgba(0,0,0,.5),0 0 0 1px rgba(31,191,166,.08);
    aspect-ratio:4/3;background:var(--ink);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover}

  .stat-strip{
    display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
    margin-top:34px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .stat-num{font-size:26px;font-weight:700;color:var(--jade-bright);line-height:1.2}
  .stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

  /* ---------- spec list ---------- */
  .spec-panel{
    background:var(--ink-2);border:1px solid var(--border);border-radius:var(--radius-l);
    padding:10px 26px;box-shadow:var(--shadow-card);
  }
  .spec-row{
    display:grid;grid-template-columns:180px 1fr;gap:22px;
    padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.14);
  }
  .spec-row:last-child{border-bottom:0}
  .spec-key{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:8px}
  .spec-key::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--jade);flex:0 0 auto}
  .spec-val{font-size:15px;color:var(--text-2)}
  .spec-val strong{color:var(--text);font-weight:600}
  @media (max-width:640px){
    .spec-panel{padding:6px 18px}
    .spec-row{grid-template-columns:1fr;gap:4px;padding:14px 0}
  }

  /* ---------- capability grid ---------- */
  .cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .cap-col{display:flex;flex-direction:column;gap:20px}
  .cap-col-offset{margin-top:34px}
  .cap-card{
    background:var(--ink-2);border:1px solid var(--border);border-radius:var(--radius-l);
    padding:24px;box-shadow:var(--shadow-card);
    transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .cap-card:hover{transform:translateY(-3px);border-color:rgba(31,191,166,.5);box-shadow:0 18px 40px rgba(0,0,0,.45)}
  .cap-index{font-size:13px;letter-spacing:.1em;color:var(--sand);font-weight:600}
  .cap-title{font-size:19px;font-weight:700;margin-top:10px}
  .cap-text{margin-top:10px;font-size:15px;color:var(--text-2)}
  .cap-media{border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--border);aspect-ratio:16/10;background:var(--ink)}
  .cap-media img{width:100%;height:100%;object-fit:cover}
  @media (max-width:767px){
    .cap-grid{grid-template-columns:1fr}
    .cap-col-offset{margin-top:0}
  }

  /* ---------- steps ---------- */
  .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
  .step{
    position:relative;background:rgba(255,255,255,.03);border:1px solid var(--border);
    border-radius:var(--radius-m);padding:22px 20px;
  }
  .step-num{font-size:22px;font-weight:700;color:var(--sand);letter-spacing:.02em}
  .step-title{font-size:16px;font-weight:600;margin-top:12px}
  .step-text{font-size:14px;color:var(--text-3);margin-top:8px;line-height:1.8}
  @media (max-width:1023px){.step-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:560px){.step-grid{grid-template-columns:1fr}}

  .notice{
    display:flex;gap:14px;align-items:flex-start;margin-top:22px;
    border:1px solid rgba(227,178,92,.35);background:rgba(227,178,92,.07);
    border-radius:var(--radius-m);padding:18px 20px;font-size:14px;color:var(--text-2);
  }
  .notice svg{flex:0 0 auto;margin-top:3px}

  /* ---------- faq ---------- */
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;
    min-height:56px;padding:14px 0 14px 18px;cursor:pointer;font-size:16px;font-weight:600;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
    background:transparent;transition:background .2s ease,box-shadow .2s ease;
  }
  .faq-item[open] summary::before{background:var(--jade);box-shadow:0 0 10px var(--jade-glow)}
  .faq-item summary:hover{color:var(--jade-bright)}
  .faq-icon{flex:0 0 auto;transition:transform .22s ease;color:var(--jade)}
  .faq-item[open] .faq-icon{transform:rotate(45deg)}
  .faq-answer{padding:0 24px 20px 18px;font-size:15px;color:var(--text-2);line-height:1.9}

  /* ---------- form ---------- */
  .cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
  .point-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
  .point{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
  .point svg{flex:0 0 auto;margin-top:5px}

  .form-panel{
    background:var(--glass);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--radius-l);padding:28px;box-shadow:var(--shadow-card);
  }
  .form-title{font-size:19px;font-weight:700}
  .form-note{font-size:13px;color:var(--text-3);margin-top:6px}
  .field{display:flex;flex-direction:column;gap:8px;margin-top:16px}
  .field label{font-size:12px;color:var(--text-3);letter-spacing:.02em}
  .field input,.field select,.field textarea{
    width:100%;background:rgba(255,255,255,.04);border:1px solid var(--border);
    border-radius:var(--radius-s);padding:12px 14px;font-size:15px;color:var(--text);
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .field input::placeholder,.field textarea::placeholder{color:#57706F}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--jade);background:rgba(31,191,166,.06);
    box-shadow:0 0 0 4px rgba(31,191,166,.16);
  }
  .field textarea{min-height:112px;resize:vertical}
  .field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .field-row .field{margin-top:16px}
  .check{display:flex;gap:10px;align-items:flex-start;margin-top:18px;font-size:13px;color:var(--text-2)}
  .check input{width:18px;height:18px;margin-top:3px;accent-color:#1FBFA6;flex:0 0 auto}
  .form-error{font-size:13px;color:var(--danger);margin-top:10px;display:none}
  .form-error.show{display:block}
  .form-success{
    display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius-s);
    border:1px solid rgba(31,191,166,.4);background:rgba(31,191,166,.10);
    color:var(--jade-bright);font-size:14px;
  }
  .form-success.show{display:block}
  @media (max-width:1023px){.cta-grid{grid-template-columns:1fr;gap:28px}}
  @media (max-width:640px){
    .field-row{grid-template-columns:1fr;gap:0}
    .form-panel{padding:22px}
  }

  /* ---------- closing cta ---------- */
  .cta-bar{
    position:relative;overflow:hidden;
    background:linear-gradient(135deg,#0F1E22,#0B1416 70%);
    border:1px solid var(--border);border-radius:22px;padding:32px;
    display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  }
  .cta-bar::before{
    content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
    background:radial-gradient(circle,rgba(31,191,166,.28),transparent 70%);
  }
  .cta-bar-text{position:relative;z-index:2;max-width:56ch}
  .cta-bar-title{font-size:clamp(20px,2.6vw,26px);font-weight:700;line-height:1.35}
  .cta-bar-sub{font-size:15px;color:var(--text-2);margin-top:10px}
  .cta-bar-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
  .back-home{margin-top:18px;font-size:14px;color:var(--text-3)}
  .back-home a{color:var(--jade-bright)}
  .back-home a:hover{text-decoration:underline}

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--ink-3);border-top:1px solid var(--line);
    padding:60px 0 32px;margin-top:24px;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
  .footer-brand .brand{grid-column:auto}
  .footer-desc{font-size:14px;color:var(--text-3);margin-top:14px;max-width:34ch;line-height:1.8}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
  .footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3)}
  .footer-links a{transition:color .18s ease}
  .footer-links a:hover{color:var(--jade-bright)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:var(--text-3);
  }
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:640px){
    .footer-grid{grid-template-columns:1fr;gap:26px}
  }

  /* ---------- responsive nav ---------- */
  @media (max-width:1023px){
    .nav-side{display:none}
    .nav-toggle{display:inline-flex}
    .nav-cta-icon{display:inline-flex}
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .header-inner .brand{position:absolute;left:50%;transform:translateX(-50%)}
    .header-actions{display:flex;align-items:center;gap:10px}
  }
  @media (min-width:1024px){
    .header-actions{display:none}
  }
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:26px}
    .hero-media{max-height:60vh;aspect-ratio:16/11;order:-1}
    .stat-strip{grid-template-columns:1fr;gap:14px;padding:18px 0}
  }