/* roulang page: index */
:root{
  --c-bg:#0A0E13;
  --c-bg-2:#121820;
  --c-surface:#161D26;
  --c-line:rgba(255,255,255,.08);
  --c-primary:#17E1B0;
  --c-primary-deep:#0DAF8A;
  --c-accent:#FF6B2C;
  --c-paper:#F3F6F5;
  --c-ink:#131A21;
  --c-ink-2:#55606B;
  --t-main:#E9EEF3;
  --t-sub:#9AA7B4;
  --t-weak:#6B7784;
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-input:10px;
  --shadow-dark:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px rgba(0,0,0,.45);
  --shadow-light:0 10px 30px rgba(19,26,33,.08);
  --ease:.24s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-main);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(23,225,176,.3);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section-alt{background:var(--c-bg-2)}
section[id],div[id].anchor{scroll-margin-top:96px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#070A0E;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--t-sub)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:40px}
.topbar-domain{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;color:var(--t-weak);letter-spacing:.02em}
.topbar-domain i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:inline-block}
.topbar-tip{color:var(--t-sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}
.topbar-actions a{color:var(--t-sub);transition:color var(--ease)}
.topbar-actions a:hover{color:var(--c-primary)}
.topbar-divider{width:1px;height:13px;background:rgba(255,255,255,.16);display:inline-block}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:800;
  background:rgba(10,14,19,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--c-line);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
  background:rgba(10,14,19,.94);
}
.header-inner{display:flex;align-items:center;gap:34px;min-height:70px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo-mark{
  width:42px;height:42px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--c-primary),#0a8d70);
  color:#06231C;font-weight:800;font-size:19px;
  clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);
  border-radius:10px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-line1{font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-line2{font-size:11.5px;color:var(--t-sub);letter-spacing:.2em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  position:relative;padding:10px 15px;font-size:15px;color:var(--t-sub);
  border-radius:8px;transition:color var(--ease),background var(--ease);
}
.main-nav a:hover{color:var(--t-main);background:rgba(255,255,255,.05)}
.main-nav a:active{transform:translateY(1px)}
.main-nav a.is-active{color:var(--t-main)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-cta{flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--c-line);border-radius:12px;background:var(--c-surface);
  cursor:pointer;place-items:center;gap:4px;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:rgba(23,225,176,.45);background:#1a2530}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-main);border-radius:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.3;
  border:1px solid transparent;cursor:pointer;
  background-image:linear-gradient(180deg,rgba(255,255,255,.2),rgba(255,255,255,0) 46%);
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn-primary{background-color:var(--c-primary-deep);color:#06231C}
.btn-primary:hover{background-color:#16c9a2;transform:translateY(-2px);box-shadow:0 12px 26px rgba(13,175,138,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--t-main)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 通用文本 ---------- */
.kicker{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(23,225,176,.12);color:var(--c-primary);
  font-size:12.5px;letter-spacing:.08em;margin-bottom:18px;
}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
h1{
  font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
h3{font-size:20px;font-weight:600;line-height:1.45}
.lead{color:var(--t-sub);font-size:17px;line-height:1.9;margin-top:18px;max-width:800px}
.muted{color:var(--t-sub)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:rgba(23,225,176,.12);color:var(--c-primary);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.badge-accent{background:rgba(255,107,44,.14);color:var(--c-accent)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:76vh;padding:84px 0 96px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(180deg,rgba(10,14,19,.68),rgba(10,14,19,.9));
  background-size:48px 48px,48px 48px,100% 100%;
}
.hero > .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy h1{margin-bottom:20px}
.hero-sub{color:var(--t-sub);font-size:17.5px;line-height:1.9;max-width:620px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:22px;margin-top:36px;padding-top:26px;border-top:1px solid var(--c-line)}
.hero-badges li{list-style:none;display:flex;align-items:center;gap:9px;font-size:14px;color:var(--t-sub)}
.hero-badges li i{
  width:18px;height:18px;flex:none;border-radius:50%;
  border:1px solid rgba(23,225,176,.5);
  display:grid;place-items:center;font-style:normal;font-size:11px;color:var(--c-primary);
}
.hero-visual{
  position:relative;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:12px;box-shadow:var(--shadow-dark);
}
.hero-visual .status{
  position:absolute;left:26px;top:-14px;z-index:3;
  padding:6px 15px;border-radius:999px;
  background:var(--c-accent);color:#210d02;font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.hero-shot{border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(140deg,#123a33,#0b1d24)}
.hero-shot img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.hero-visual:hover .hero-shot img{transform:scale(1.03)}
.hero-strip{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding:0 6px;font-size:13px;color:var(--t-weak)}

/* ---------- 卖点区（非对称） ---------- */
.feat-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.feat-main p{color:var(--t-sub);margin-top:16px}
.feat-list{list-style:none;display:grid;gap:18px;margin-top:32px}
.feat-list li{display:flex;gap:16px;align-items:flex-start}
.feat-num{
  width:36px;height:36px;flex:none;border-radius:50%;
  border:1px solid rgba(23,225,176,.45);color:var(--c-primary);
  display:grid;place-items:center;font-weight:700;font-size:14px;
}
.feat-list h3{font-size:17.5px;margin-bottom:4px}
.feat-list p{color:var(--t-sub);font-size:15.5px;line-height:1.85}
.feat-side{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feat-side .card:nth-child(2){margin-top:32px}

/* ---------- 卡片 ---------- */
.card{
  position:relative;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);opacity:.65;
}
.card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--shadow-dark);background:#18212b}
.card h3{margin-bottom:10px}
.card p{color:var(--t-sub);font-size:15.5px;line-height:1.85}
.thumb{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(140deg,#123a33,#0b1d24);margin-bottom:18px}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.card:hover .thumb img{transform:scale(1.03)}

/* ---------- 演示区 ---------- */
.demo-grid{display:grid;grid-template-columns:288px 1fr;gap:32px;align-items:start}
.demo-tabs{list-style:none;margin:0;border:0;background:transparent}
.demo-tabs .tabs-title{float:none}
.demo-tabs .tabs-title > a{
  display:block;margin-bottom:12px;padding:15px 18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:12px;color:var(--t-sub);font-size:15px;font-weight:600;
  transition:all var(--ease);text-align:left;
}
.demo-tabs .tabs-title > a:hover{color:var(--t-main);border-color:rgba(23,225,176,.4);transform:translateY(-2px)}
.demo-tabs .tabs-title.is-active > a{
  background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#06231C;
  box-shadow:0 12px 26px rgba(13,175,138,.26);
}
.demo-tabs .tabs-title > a:focus{outline:2px solid var(--c-primary);outline-offset:2px}
.demo-panels{border:0;background:transparent}
.demo-panels .tabs-panel{padding:0}
.demo-panels .tabs-panel.is-active{animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.demo-figure{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:12px;background:var(--c-surface);box-shadow:var(--shadow-dark);
}
.demo-figure .thumb{margin-bottom:0;aspect-ratio:16/10}
.demo-cap{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding:0 4px;font-size:13.5px;color:var(--t-weak)}

/* ---------- 证据区 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:52px}
.stat{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:transform var(--ease),border-color var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4)}
.stat-num{font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.02em}
.stat-label{font-size:14px;color:var(--t-sub);margin-top:8px}
.quote-wrap{position:relative}
.quote-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:16px;width:90px;
  background:linear-gradient(90deg,rgba(18,24,32,0),var(--c-bg-2));
  pointer-events:none;
}
.quote-track{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.quote-track::-webkit-scrollbar{display:none}
.quote-card{
  flex:0 0 330px;scroll-snap-align:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:transform var(--ease),border-color var(--ease);
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4)}
.quote-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.avatar{
  width:44px;height:44px;flex:none;border-radius:12px;
  display:grid;place-items:center;font-weight:700;color:#06231C;
  background:linear-gradient(150deg,var(--c-primary),#0a8d70);
}
.quote-name{font-size:15.5px;font-weight:600}
.quote-role{font-size:12.5px;color:var(--t-weak)}
.quote-card p{color:var(--t-sub);font-size:15.5px;line-height:1.85}

/* ---------- 权益区 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  position:relative;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.plan:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--shadow-dark)}
.plan-featured{border-color:rgba(23,225,176,.55);transform:translateY(-8px);box-shadow:var(--shadow-dark)}
.plan-featured:hover{transform:translateY(-12px)}
.plan-flag{
  position:absolute;right:22px;top:-13px;
  padding:5px 14px;border-radius:999px;background:var(--c-accent);
  color:#210d02;font-size:12.5px;font-weight:700;
}
.plan-name{font-size:18px;font-weight:700}
.plan-price{margin:14px 0 6px;font-size:26px;font-weight:800;color:var(--c-primary);letter-spacing:-.02em}
.plan-price small{font-size:13.5px;font-weight:500;color:var(--t-weak);margin-left:6px}
.plan-desc{font-size:14.5px;color:var(--t-sub);min-height:52px}
.plan-feats{list-style:none;margin:22px 0 26px;display:grid;gap:12px}
.plan-feats li{display:flex;gap:10px;font-size:15px;color:var(--t-sub);align-items:flex-start}
.plan-feats li i{
  width:18px;height:18px;flex:none;margin-top:4px;border-radius:50%;
  display:grid;place-items:center;font-style:normal;font-size:11px;font-weight:700;
}
.plan-feats li.on i{background:rgba(53,208,127,.16);color:var(--ok)}
.plan-feats li.off{color:var(--t-weak)}
.plan-feats li.off i{background:rgba(255,255,255,.06);color:var(--t-weak)}

/* ---------- 资讯区（CMS） ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.news-head .section-head{margin-bottom:0}
.news-more{color:var(--c-primary);font-size:15px;font-weight:600;white-space:nowrap;transition:transform var(--ease)}
.news-more:hover{transform:translateX(3px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--shadow-dark)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#123a33,#0b1d24);display:grid;place-items:center}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb-fallback{
  font-size:40px;font-weight:800;color:rgba(23,225,176,.55);letter-spacing:-.03em;
}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:17.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14.5px;color:var(--t-sub);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--t-weak)}
.news-empty{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);background:var(--c-surface);
}
.news-empty .mark{
  width:64px;height:64px;margin:0 auto 20px;border-radius:16px;
  display:grid;place-items:center;font-size:26px;color:var(--c-primary);
  background:rgba(23,225,176,.1);border:1px solid rgba(23,225,176,.28);
}
.news-empty p{color:var(--t-sub);font-size:15.5px;margin-bottom:22px}

/* ---------- FAQ ---------- */
.faq-acc{list-style:none;margin:0;padding:0;background:transparent;max-width:900px;margin:0 auto}
.faq-acc .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.faq-acc .accordion-item:hover{border-color:rgba(23,225,176,.35)}
.faq-acc .accordion-item.is-active{background:#182129;box-shadow:inset 3px 0 0 var(--c-primary)}
.faq-acc .accordion-title{
  display:block;border:0;background:transparent;color:var(--t-main);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:20px 58px 20px 22px;position:relative;
}
.faq-acc .accordion-title::before{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--c-primary);font-size:20px;font-weight:400;line-height:1;
}
.faq-acc .accordion-title:hover{color:#fff}
.faq-acc .accordion-item.is-active > .accordion-title{color:var(--c-primary)}
.faq-acc .accordion-content{
  display:none;border:0;background:transparent;color:var(--t-sub);
  font-size:15.5px;line-height:1.85;padding:0 24px 22px 22px;
}
.faq-acc .accordion-content.is-active{display:block}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:rgba(23,225,176,.06);
  border:1px solid rgba(23,225,176,.18);
  border-radius:20px;
  padding:52px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:240px;height:240px;
  background:linear-gradient(140deg,rgba(23,225,176,.16),rgba(23,225,176,0));
  clip-path:polygon(18% 0,100% 0,100% 82%,82% 100%,0 100%,0 18%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy p{color:var(--t-sub);margin-top:16px}
.cta-points{list-style:none;margin-top:26px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--t-sub)}
.cta-points li i{color:var(--c-primary);font-style:normal;font-weight:700}
.form-card{
  position:relative;z-index:2;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-dark);
  width:100%;max-width:640px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--t-sub);margin-bottom:8px}
.field label em{color:var(--c-primary);font-style:normal;margin-left:2px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:#101821;border:1px solid var(--c-line);color:var(--t-main);
  font-size:15px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:var(--t-weak)}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,225,176,.18);background:#0d151d;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field-error input,.field-error textarea{border-color:var(--err)}
.field-hint{font-size:13px;color:var(--err);margin-top:6px;display:none}
.field-error .field-hint{display:block}
.form-note{font-size:13px;color:var(--t-weak);margin-top:14px;line-height:1.7}
.form-success{
  display:none;padding:18px 20px;border-radius:12px;
  background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.4);
  color:#a9f0c8;font-size:15px;
}
.form-success.is-shown{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:#070A0E;border-top:1px solid var(--c-line);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .logo-mark{width:38px;height:38px;font-size:17px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2}
.footer-brand-text b{font-size:15.5px}
.footer-brand-text span{font-size:11.5px;color:var(--t-sub);letter-spacing:.18em}
.footer-desc{color:var(--t-sub);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-domain{margin-top:16px;font-size:13px;color:var(--t-weak);letter-spacing:.02em}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:.02em}
.footer-col ul{list-style:none;display:grid;gap:12px}
.footer-col a{color:var(--t-sub);font-size:14.5px;display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{color:var(--t-sub);font-size:14.5px;display:flex;gap:10px;align-items:flex-start}
.footer-contact li b{color:var(--t-main);font-weight:600}
.qr-box{
  margin-top:18px;width:112px;height:112px;border-radius:14px;
  border:1px dashed rgba(255,255,255,.16);display:grid;place-items:center;
  color:var(--t-weak);font-size:12.5px;text-align:center;line-height:1.6;
  background:linear-gradient(140deg,rgba(23,225,176,.07),rgba(23,225,176,0));
}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-weak);
}
.footer-bottom a{color:var(--t-weak)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:999px;
  background:var(--c-primary-deep);color:#06231C;font-weight:700;font-size:15px;
  box-shadow:0 16px 36px rgba(13,175,138,.38);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease),background-color var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta.is-lifted{transform:translateY(-84px)}
.float-cta:hover{background:#16c9a2;transform:translateY(-2px)}
.float-cta:active{transform:translateY(1px)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:950;
  background:rgba(7,10,14,.98);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:22px 24px calc(32px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;
  transform:translateY(-100%);visibility:hidden;
  transition:transform .32s cubic-bezier(.4,.2,.2,1),visibility .32s;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:32px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--t-main);cursor:pointer;display:grid;place-items:center;font-size:18px;
  transition:border-color var(--ease),color var(--ease);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-nav{display:grid;gap:10px;margin-bottom:30px}
.drawer-nav a{
  padding:16px 18px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);font-size:16.5px;font-weight:600;color:var(--t-main);
  display:flex;align-items:center;justify-content:space-between;
  transition:border-color var(--ease),transform var(--ease),color var(--ease);
}
.drawer-nav a:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.drawer-nav a span{font-size:13px;color:var(--t-weak);font-weight:400}
.drawer-note{margin-top:auto;font-size:13px;color:var(--t-weak);line-height:1.8}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:44px;min-height:auto}
  .hero{padding:64px 0 76px}
  .feat-grid{grid-template-columns:1fr;gap:36px}
  .feat-side .card:nth-child(2){margin-top:0}
  .demo-grid{grid-template-columns:1fr;gap:24px}
  .demo-tabs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
  .demo-tabs .tabs-title > a{margin-bottom:0;text-align:center}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr;gap:22px}
  .plan-featured{transform:none}
  .plan-featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-block{grid-template-columns:1fr;gap:34px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:grid}
  .topbar-tip{display:none}
}
@media (max-width:640px){
  body{font-size:16.5px;padding-bottom:calc(68px + env(safe-area-inset-bottom))}
  .container{padding:0 18px}
  .section{padding:56px 0}
  section[id]{scroll-margin-top:112px}
  .hero{padding:52px 0 64px}
  .hero-sub{font-size:16.5px}
  .hero-btns{gap:12px}
  .hero-btns .btn{flex:1 1 100%}
  .hero-badges{gap:14px;margin-top:28px;padding-top:22px}
  .hero-badges li{font-size:13.5px}
  .logo-line1{font-size:15px}
  .logo-line2{font-size:10.5px;letter-spacing:.16em}
  .feat-side{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat{padding:20px}
  .quote-card{flex:0 0 86%}
  .news-grid{grid-template-columns:1fr}
  .news-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-block{padding:28px 22px;border-radius:16px}
  .form-card{padding:22px}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .float-cta{
    left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom));
    justify-content:center;border-radius:14px;
  }
  .float-cta.is-lifted{transform:translateY(-96px)}
  .topbar-inner{min-height:36px}
  .topbar-domain{font-size:12.5px}
  .topbar-actions .hide-sm{display:none}
}
@media (max-width:400px){
  .stat-grid{grid-template-columns:1fr}
  .demo-tabs{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-bg:#0A0E13;
  --c-bg-2:#121820;
  --c-surface:#161D26;
  --c-surface-2:#1A222C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-primary:#17E1B0;
  --c-primary-deep:#0DAF8A;
  --c-primary-ink:#06231C;
  --c-accent:#FF6B2C;
  --c-paper:#F3F6F5;
  --c-ink:#131A21;
  --c-ink-2:#55606B;
  --c-text:#E9EEF3;
  --c-text-2:#9AA7B4;
  --c-text-3:#6B7784;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF4D4F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-dark:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px rgba(0,0,0,.45);
  --shadow-paper:0 10px 30px rgba(19,26,33,.08);
  --sect-desktop:96px;
  --sect-tablet:72px;
  --sect-mobile:56px;
  --font-cn:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.page-article{padding-bottom:calc(64px + env(safe-area-inset-bottom));}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:#5FF0CB;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--c-text);}
p{margin:0 0 1em;}
ul,ol{margin:0;}
button{font-family:inherit;}
::selection{background:rgba(23,225,176,.28);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
[id]{scroll-margin-top:96px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  text-align:center;line-height:1.2;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--c-primary-deep);color:var(--c-primary-ink);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 10px 24px rgba(13,175,138,.28);
}
.btn-primary:hover{background:#12C79C;color:var(--c-primary-ink);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--c-text);border-color:var(--c-line-strong);}
.btn-outline:hover{border-color:rgba(23,225,176,.6);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--c-text-2);border-color:transparent;}
.btn-ghost:hover{color:var(--c-text);background:rgba(255,255,255,.08);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(23,225,176,.12);color:var(--c-primary);letter-spacing:.02em;
}
.badge-accent{background:rgba(255,107,44,.14);color:var(--c-accent);}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#070A0E;border-bottom:1px solid var(--c-line);font-size:12.8px;color:var(--c-text-3);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:40px;}
.topbar-domain{font-weight:600;color:var(--c-text-2);letter-spacing:.04em;}
.topbar-tip{color:var(--c-text-3);}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.topbar-actions a{color:var(--c-text-2);}
.topbar-actions a:hover{color:var(--c-primary);}
.topbar-sep{width:1px;height:12px;background:var(--c-line-strong);display:inline-block;}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(10,14,19,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 12px 30px rgba(0,0,0,.42);background:rgba(10,14,19,.95);}
.header-inner{display:flex;align-items:center;gap:26px;height:70px;}
.logo{display:flex;align-items:center;gap:11px;color:var(--c-text);}
.logo:hover{color:var(--c-text);}
.logo-mark{
  width:38px;height:38px;flex:none;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  color:var(--c-primary-ink);font-weight:800;font-size:19px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4);
  clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-line1{font-size:16.5px;font-weight:800;letter-spacing:-.01em;}
.logo-line2{font-size:11.5px;color:var(--c-text-3);letter-spacing:.18em;font-weight:500;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.main-nav a{
  position:relative;padding:10px 14px;border-radius:9px;font-size:15px;font-weight:500;color:var(--c-text-2);
}
.main-nav a:hover{color:var(--c-text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{color:var(--c-text);}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-cta{margin-left:auto;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);}

/* ---------- 文章页 Hero ---------- */
.article-hero{
  position:relative;padding:72px 0 56px;
  background-image:linear-gradient(180deg,rgba(8,11,15,.72) 0%,rgba(8,11,15,.9) 62%,var(--c-bg) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;opacity:.6;
}
.article-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:22px;}
.crumbs a{color:var(--c-text-2);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs span.current{color:var(--c-text-3);max-width:min(560px,60vw);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.crumbs i{font-style:normal;color:var(--c-text-3);opacity:.6;}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.22;
  max-width:920px;margin:16px 0 0;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:13.8px;color:var(--c-text-3);}
.article-meta b{color:var(--c-text-2);font-weight:600;}
.article-meta span.dot{width:4px;height:4px;border-radius:50%;background:var(--c-line-strong);display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-section{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;align-items:start;}
.article-main{max-width:800px;width:100%;}
.article-cover{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
  margin-bottom:26px;box-shadow:var(--shadow-dark);aspect-ratio:16/8;
}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.article-cover:hover img{transform:scale(1.03);}
.paper-card{
  background:var(--c-paper);color:var(--c-ink);
  border-radius:var(--r-img);padding:48px;
  box-shadow:var(--shadow-paper);
  border:1px solid rgba(19,26,33,.06);
}
.paper-card .article-body{max-width:100%;}
.article-body{font-size:17px;line-height:1.9;color:#1F2A33;}
.article-body p{margin:0 0 1.15em;line-height:1.9;}
.article-body h2{
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary-deep);
  font-size:clamp(21px,2vw,26px);color:#0F171E;font-weight:700;
}
.article-body h3{margin:28px 0 12px;font-size:19px;color:#16212A;font-weight:600;}
.article-body h4{margin:24px 0 10px;font-size:17px;color:#16212A;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body li{margin-bottom:.5em;line-height:1.85;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-radius:0 12px 12px 0;
  background:#E7EDEB;border-left:4px solid #0A7F66;color:#2A3A3F;
}
.article-body img{width:100%;border-radius:var(--r-img);margin:26px 0 8px;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;margin-top:8px;}
.article-body a{color:#0A7F66;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#07604D;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15.5px;}
.article-body th,.article-body td{border-bottom:1px solid #D6DEDB;padding:12px 10px;text-align:left;color:#22303A;}
.article-body th{font-weight:600;color:#0F171E;border-bottom-width:2px;}
.article-body code{background:#E4EAE8;border-radius:6px;padding:2px 6px;font-size:15px;color:#0A5B49;}
.article-body hr{border:0;border-top:1px solid #D6DEDB;margin:34px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:52px 32px;text-align:center;box-shadow:var(--shadow-dark);
}
.empty-state .empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;
  color:var(--c-primary-ink);background:linear-gradient(150deg,var(--c-primary),var(--c-primary-deep));
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--c-text-2);max-width:460px;margin:0 auto 22px;}

/* ---------- 阅读提示条 ---------- */
.reading-note{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:26px;padding:18px 22px;border-radius:var(--r-card);
  background:rgba(23,225,176,.06);border:1px solid rgba(23,225,176,.18);
}
.reading-note b{color:var(--c-primary);}
.reading-note p{margin:0;font-size:14.8px;color:var(--c-text-2);line-height:1.8;}

/* ---------- 文末工具 ---------- */
.article-foot{margin-top:30px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;padding:6px 13px;border-radius:999px;font-size:12.8px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
}
.tag:hover{color:var(--c-primary);border-color:rgba(23,225,176,.45);}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-3);}
.share-btn{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:13px;font-weight:600;cursor:pointer;transition:.2s ease;
}
.share-btn:hover{color:var(--c-primary);border-color:rgba(23,225,176,.45);transform:translateY(-2px);}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-dark);
}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);}
.side-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14.2px;}
.side-list a{color:var(--c-text-2);display:inline-block;}
.side-list a:hover{color:var(--c-primary);transform:translateX(2px);}
.side-list-dot li{position:relative;padding-left:14px;}
.side-list-dot li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--c-primary);opacity:.7;}
.side-card-cta{background:rgba(23,225,176,.07);border-color:rgba(23,225,176,.2);}
.side-card-cta p{font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sect-desktop) 0;}
.section-alt{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-eyebrow{font-size:13px;letter-spacing:.22em;color:var(--c-primary);font-weight:600;text-transform:uppercase;margin-bottom:14px;}
.section-head h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;letter-spacing:-.015em;}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16.5px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);
  margin-bottom:12px;overflow:hidden;transition:background-color .22s ease,border-color .22s ease;
}
.faq-item[open]{background:var(--c-surface-2);border-left:3px solid var(--c-primary);border-color:rgba(23,225,176,.28);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--c-text);
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--c-primary);font-size:20px;line-height:1;flex:none;}
.faq-item[open] summary::after{content:"−";}
.faq-answer{padding:0 22px 20px;color:var(--c-text-2);font-size:15.5px;line-height:1.85;}
.faq-answer p{margin:0 0 .7em;}

/* ---------- 分类卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.topic-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-dark);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);}
.topic-thumb{aspect-ratio:16/8;overflow:hidden;position:relative;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.topic-card:hover .topic-thumb img{transform:scale(1.03);}
.topic-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.topic-body h3{font-size:18.5px;}
.topic-body p{color:var(--c-text-2);font-size:15px;line-height:1.8;margin:0;flex:1;}
.topic-link{font-size:14.5px;font-weight:600;color:var(--c-primary);}

/* ---------- CTA ---------- */
.cta-wrap{
  position:relative;border-radius:18px;overflow:hidden;
  background:linear-gradient(120deg,rgba(23,225,176,.1),rgba(255,107,44,.07));
  border:1px solid rgba(23,225,176,.22);
  padding:48px;
  display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:34px;align-items:center;
}
.cta-wrap::after{
  content:"";position:absolute;right:-1px;top:-1px;width:120px;height:120px;
  background:rgba(23,225,176,.14);clip-path:polygon(100% 0,100% 100%,0 0);pointer-events:none;
}
.cta-wrap h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:14px;}
.cta-wrap p{color:var(--c-text-2);margin:0;font-size:16px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.cta-card{background:rgba(10,14,19,.5);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;position:relative;z-index:2;}
.cta-card h3{font-size:16px;margin-bottom:14px;}
.cta-card ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:var(--c-text-2);}
.cta-card li{display:flex;gap:9px;align-items:flex-start;}
.cta-card li::before{content:"✓";color:var(--c-primary);font-weight:700;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:999px;
  background:var(--c-primary-deep);color:var(--c-primary-ink);font-weight:700;font-size:15px;
  box-shadow:0 14px 34px rgba(13,175,138,.34),inset 0 1px 0 rgba(255,255,255,.35);
  opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .28s ease,transform .28s ease,background-color .2s ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:#12C79C;color:var(--c-primary-ink);}
.float-cta.is-lifted{transform:translateY(-64px);}

/* ---------- 页脚 ---------- */
.site-footer{background:#070A0E;border-top:1px solid var(--c-line);padding:68px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2;}
.footer-brand-text b{font-size:16.5px;color:var(--c-text);}
.footer-brand-text span{font-size:11.5px;color:var(--c-text-3);letter-spacing:.16em;}
.footer-desc{color:var(--c-text-2);font-size:14.5px;line-height:1.85;margin:0 0 14px;max-width:360px;}
.footer-domain{color:var(--c-text-3);font-size:13px;letter-spacing:.06em;margin:0;}
.footer-col h4{font-size:14.5px;color:var(--c-text);margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{color:var(--c-text-2);font-size:14.2px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{font-size:14.2px;color:var(--c-text-2);}
.footer-contact b{color:var(--c-text-3);font-weight:500;}
.qr-box{
  margin-top:16px;width:112px;height:112px;border-radius:12px;
  border:1px dashed var(--c-line-strong);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--c-text-3);line-height:1.6;
}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;order:2;}
  .article-main{max-width:100%;}
  .cta-wrap{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:var(--sect-tablet) 0;}
}
@media (max-width:900px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
    background:var(--c-bg-2);border-left:1px solid var(--c-line);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 22px 26px;margin:0;z-index:1200;
    transform:translateX(104%);transition:transform .3s ease;
    box-shadow:-20px 0 46px rgba(0,0,0,.5);
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:10px;}
  .main-nav a.is-active::after{display:none;}
  .main-nav a.is-active{background:rgba(23,225,176,.1);color:var(--c-primary);}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .topbar-tip{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .article-hero{padding:54px 0 42px;}
  .article-section{padding:40px 0 56px;}
  .paper-card{padding:24px;}
  .article-body{font-size:16.5px;}
  .topic-grid{grid-template-columns:minmax(0,1fr);}
  .cta-wrap{padding:30px 22px;}
  .section-head{margin-bottom:32px;}
  .footer-grid{grid-template-columns:1fr;}
  .crumbs span.current{max-width:100%;}
}
@media (max-width:520px){
  .logo-line2{letter-spacing:.12em;}
  .article-hero h1{font-size:26px;}
  .float-cta{
    left:14px;right:14px;bottom:calc(12px + env(safe-area-inset-bottom));
    justify-content:center;border-radius:12px;font-size:15px;
  }
  .float-cta.is-lifted{transform:translateY(-10px);}
  .footer-bottom{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#0A0E13;
  --c-bg-2:#121820;
  --c-surface:#161D26;
  --c-line:rgba(255,255,255,.08);
  --c-primary:#17E1B0;
  --c-primary-deep:#0DAF8A;
  --c-accent:#FF6B2C;
  --c-paper:#F3F6F5;
  --c-ink:#131A21;
  --c-ink-2:#55606B;
  --c-text:#E9EEF3;
  --c-text-2:#9AA7B4;
  --c-text-3:#6B7784;
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-dark:0 0 0 1px rgba(255,255,255,.06),0 18px 40px rgba(0,0,0,.45);
  --sh-soft:0 10px 30px rgba(19,26,33,.08);
  --container:1200px;
  --sec-pad:96px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:calc(64px + env(safe-area-inset-bottom));
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--c-text);
  background-color:var(--c-bg);
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px);
  background-size:68px 68px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#57f2cb;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--c-text);}
h1{font-size:clamp(30px,4.2vw,48px);font-weight:800;letter-spacing:-.02em;line-height:1.2;}
h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;letter-spacing:-.01em;}
h3{font-size:21px;font-weight:600;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(23,225,176,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.grid-container{max-width:var(--container);padding-left:20px;padding-right:20px;}
.section{padding:var(--sec-pad) 0;scroll-margin-top:96px;}
.section-alt{background:var(--c-bg-2);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head p{color:var(--c-text-2);font-size:16.5px;margin:14px 0 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;font-weight:600;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-primary);display:inline-block;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;line-height:1.4;
}
.btn-primary{
  background:var(--c-primary-deep);color:#06231C;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 10px 24px rgba(13,175,138,.24);
}
.btn-primary:hover{background:#12c79c;color:#06231C;transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 16px 30px rgba(13,175,138,.32);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-text);border-color:rgba(255,255,255,.22);}
.btn-ghost:hover{border-color:rgba(23,225,176,.6);color:#fff;transform:translateY(-2px);background:rgba(23,225,176,.07);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(23,225,176,.12);color:var(--c-primary);
  border:1px solid rgba(23,225,176,.22);
}
.badge-accent{background:rgba(255,107,44,.12);color:#FF8A55;border-color:rgba(255,107,44,.28);}
.badge-mute{background:rgba(255,255,255,.06);color:var(--c-text-2);border-color:var(--c-line);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:800;
  background:rgba(10,14,19,.78);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--c-line);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
  background:rgba(10,14,19,.92);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:70px;
}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--c-primary),#0b8f72);
  color:#06231C;font-weight:800;font-size:18px;
  border-radius:11px;
  clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-line1{font-size:15px;font-weight:800;color:#fff;letter-spacing:.02em;}
.logo-line2{font-size:11.5px;font-weight:500;color:var(--c-primary);letter-spacing:.16em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.main-nav a{
  position:relative;padding:8px 14px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.05);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:#fff;font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:38px;flex:0 0 42px;
  background:transparent;border:1px solid var(--c-line);border-radius:9px;
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:transform .24s ease,opacity .24s ease;}
.nav-toggle:hover{border-color:rgba(23,225,176,.5);}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  padding:78px 0 62px;
  min-height:340px;
  display:flex;align-items:center;
  background-image:
    linear-gradient(180deg,rgba(10,14,19,.86),rgba(10,14,19,.7)),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:4px;
  background:linear-gradient(90deg,var(--c-primary) 0 22%,var(--c-accent) 22% 30%,transparent 30%);
  opacity:.85;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--c-text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:var(--c-text-3);}
.page-hero h1{max-width:840px;}
.hero-lead{
  max-width:720px;margin:18px 0 0;color:var(--c-text-2);font-size:17px;line-height:1.85;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ============ 锚点胶囊导航 ============ */
.anchor-bar{
  position:sticky;top:70px;z-index:700;
  background:rgba(18,24,32,.94);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.anchor-inner{display:flex;align-items:center;gap:10px;padding:12px 0;overflow-x:auto;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--c-text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  transition:all .2s ease;white-space:nowrap;
}
.anchor-inner a:hover{color:#fff;border-color:rgba(23,225,176,.5);background:rgba(23,225,176,.1);transform:translateY(-1px);}
.anchor-inner a.is-current{color:#06231C;background:var(--c-primary-deep);border-color:var(--c-primary-deep);font-weight:600;}

/* ============ 页面双栏布局 ============ */
.page-grid{
  display:grid;grid-template-columns:262px 1fr;gap:48px;align-items:start;
}
.toc{
  position:sticky;top:148px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-dark);
}
.toc h4{font-size:13px;letter-spacing:.14em;color:var(--c-text-3);margin-bottom:14px;font-weight:600;}
.toc ul{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--c-text-2);border-left:2px solid transparent;
  transition:all .2s ease;
}
.toc a:hover{color:#fff;background:rgba(255,255,255,.05);transform:translateX(2px);}
.toc a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(23,225,176,.08);font-weight:600;}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);line-height:1.75;
}
.toc-cta{margin-top:16px;}

.page-body > section{padding:0 0 56px;scroll-margin-top:130px;}
.block-title{display:flex;align-items:flex-start;gap:14px;margin-bottom:22px;}
.block-title .idx{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(23,225,176,.4);color:var(--c-primary);
  font-weight:800;font-size:15px;background:rgba(23,225,176,.07);
}
.block-title h2{font-size:clamp(22px,2.1vw,29px);}
.block-title p{margin:6px 0 0;font-size:15px;color:var(--c-text-3);}

/* ============ 图文说明块 ============ */
.feature-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-dark);
  position:relative;overflow:hidden;
}
.feature-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--c-primary),transparent);
}
.feature-row p{color:var(--c-text-2);font-size:16px;}
.feature-row h3{margin-bottom:12px;}
.feature-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
  aspect-ratio:16/11;background:var(--c-bg-2);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.feature-media:hover img{transform:scale(1.03);}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{display:flex;gap:10px;font-size:15.5px;color:var(--c-text-2);}
.mini-list i{color:var(--c-primary);margin-top:7px;font-size:12px;}

/* ============ 编号步骤 ============ */
.steps{display:flex;flex-direction:column;gap:14px;}
.step{
  display:grid;grid-template-columns:78px 1fr;gap:20px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px 26px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--sh-dark);}
.step-num{
  font-size:38px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--c-primary);
  letter-spacing:-.02em;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{margin:0;color:var(--c-text-2);font-size:15.5px;}
.step .step-tip{
  display:inline-flex;gap:7px;align-items:center;margin-top:12px;
  font-size:13px;color:var(--warn);
}

/* ============ 要点卡 ============ */
.point-card{
  height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.point-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--sh-dark);}
.point-card .pc-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(23,225,176,.1);border:1px solid rgba(23,225,176,.28);
  color:var(--c-primary);font-size:17px;margin-bottom:16px;
}
.point-card h3{font-size:17.5px;margin-bottom:10px;}
.point-card p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(23,225,176,.34);}
.faq-item[open]{
  border-left:3px solid var(--c-primary);
  background:rgba(23,225,176,.05);
}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 24px;cursor:pointer;font-size:17px;font-weight:600;color:var(--c-text);
  list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1;
  color:var(--c-primary);transition:transform .24s ease;margin-top:2px;
}
.faq-item[open] .faq-q::after{content:"−";}
.faq-a{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--c-text-2);}

/* ============ CTA 转化带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:rgba(23,225,176,.06);
  border:1px solid rgba(23,225,176,.22);
  border-radius:var(--r-card);
  padding:34px 32px;
  display:grid;grid-template-columns:1.4fr .9fr;gap:26px;align-items:center;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%);
}
.cta-band h2{font-size:clamp(21px,2vw,27px);}
.cta-band p{margin:12px 0 0;color:var(--c-text-2);font-size:15.5px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 相关条目 ============ */
.related-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.related-item{
  display:flex;align-items:center;gap:14px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 20px;
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.related-item:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);background:rgba(23,225,176,.05);}
.related-item .ri-idx{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,225,176,.12);color:var(--c-primary);
  font-size:13px;font-weight:700;
}
.related-item b{display:block;font-size:15.5px;color:var(--c-text);font-weight:600;}
.related-item span{font-size:13px;color:var(--c-text-3);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;
  background:#080B10;
  border-top:1px solid var(--c-line);
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .logo-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2;}
.footer-brand-text b{font-size:15px;color:#fff;}
.footer-brand-text span{font-size:11.5px;color:var(--c-primary);letter-spacing:.16em;}
.footer-desc{font-size:14px;color:var(--c-text-2);line-height:1.85;margin:0 0 14px;max-width:340px;}
.footer-domain{font-size:13px;color:var(--c-text-3);letter-spacing:.06em;margin:0;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--c-text-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-contact li{font-size:13.5px;color:var(--c-text-2);line-height:1.8;}
.footer-contact b{color:var(--c-text-3);font-weight:500;}
.qr-box{
  margin-top:16px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.03);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--c-text-3);line-height:1.6;padding:10px;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--c-text-3);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:var(--c-primary-deep);color:#06231C;font-weight:700;font-size:15px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 16px 34px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
}
.float-cta:hover{background:#12c79c;color:#06231C;transform:translateY(-2px);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec-pad:72px;}
  .page-grid{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;}
  .toc ul{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc a{border-left:none;border:1px solid var(--c-line);padding:7px 14px;font-size:13.5px;border-radius:var(--r-pill);}
  .toc a.is-current{border-color:var(--c-primary);}
  .toc-note{display:none;}
  .toc-cta{margin-top:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:900px){
  .main-nav{
    position:fixed;left:0;right:0;top:70px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(10,14,19,.98);
    padding:18px 20px 26px;
    border-bottom:1px solid var(--c-line);
    box-shadow:0 24px 40px rgba(0,0,0,.5);
    transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
    max-height:calc(100vh - 70px);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:10px;color:var(--c-text);}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{background:rgba(23,225,176,.1);color:var(--c-primary);}
  .nav-toggle{display:flex;margin-left:auto;}
  .header-cta{display:none;}
  .anchor-bar{top:70px;}
  .feature-row{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;}
  .related-list{grid-template-columns:1fr;}
  .float-cta{
    left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom));
    justify-content:center;border-radius:12px;
  }
}
@media (max-width:640px){
  :root{--sec-pad:56px;}
  body{font-size:16.5px;}
  .page-hero{padding:52px 0 44px;min-height:0;}
  .header-inner{gap:14px;min-height:64px;}
  .site-header .logo-line1{font-size:14px;}
  .anchor-bar{top:64px;}
  .anchor-inner{gap:8px;}
  .step{grid-template-columns:1fr;gap:10px;padding:20px;}
  .step-num{font-size:30px;}
  .feature-row{padding:20px;}
  .block-title{gap:12px;}
  .block-title .idx{flex:0 0 38px;width:38px;height:38px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a{padding:0 18px 18px;}
  .cta-band{padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .main-nav{top:64px;}
}

/* roulang page: category2 */
:root{
  --c-bg:#0A0E13;
  --c-bg-2:#121820;
  --c-surface:#161D26;
  --c-line:rgba(255,255,255,.08);
  --c-primary:#17E1B0;
  --c-primary-deep:#0DAF8A;
  --c-primary-ink:#06231C;
  --c-accent:#FF6B2C;
  --c-paper:#F3F6F5;
  --c-ink:#131A21;
  --c-ink-2:#55606B;
  --t-1:#E9EEF3;
  --t-2:#9AA7B4;
  --t-3:#6B7784;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF4D4F;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(19,26,33,.08);
  --container:1200px;
  --sect:96px;
  --font:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-1);
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{scroll-margin-top:96px}
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}

/* 顶部信息条 */
.topbar{background:#070A0E;border-bottom:1px solid var(--c-line);font-size:12.8px;color:var(--t-2)}
.topbar-inner{display:flex;align-items:center;gap:18px;height:40px}
.topbar-domain{color:var(--t-2);letter-spacing:.02em}
.topbar-tip{flex:1;color:var(--t-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:12px;color:var(--t-2)}
.topbar-actions a:hover{color:var(--c-primary)}
.topbar-actions .divider{width:1px;height:12px;background:rgba(255,255,255,.16)}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:800;
  background:rgba(10,14,19,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,14,19,.92);
  border-bottom-color:var(--c-line);
  box-shadow:0 12px 30px rgba(0,0,0,.42);
}
.header-inner{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  color:var(--c-primary-ink);
  font-weight:800;font-size:19px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.45);
  clip-path:polygon(16% 0,100% 0,100% 84%,84% 100%,0 100%,0 16%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-line1{font-size:16.5px;font-weight:800;letter-spacing:-.01em;color:var(--t-1)}
.logo-line2{font-size:11.5px;color:var(--c-primary);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  position:relative;padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--t-2);
}
.main-nav a:hover{color:var(--t-1);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--t-1);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;
  background:rgba(255,255,255,.03);cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{
  background:var(--c-primary-deep);color:var(--c-primary-ink);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.42),0 10px 24px rgba(13,175,138,.26);
}
.btn-primary:hover{background:#12c69c;transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 14px 30px rgba(13,175,138,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 0 rgba(255,255,255,.35)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-quiet{background:rgba(255,255,255,.04);border-color:var(--c-line);color:var(--t-1)}
.btn-quiet:hover{background:rgba(255,255,255,.08);border-color:rgba(23,225,176,.4);transform:translateY(-2px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.4px;font-weight:600;letter-spacing:.02em;
  background:rgba(23,225,176,.12);color:var(--c-primary);
  border:1px solid rgba(23,225,176,.24);
}
.badge-accent{background:rgba(255,107,44,.14);color:#FF8F5C;border-color:rgba(255,107,44,.3)}

/* 页面 Hero */
.page-hero{
  position:relative;overflow:hidden;
  min-height:360px;display:flex;align-items:center;
  padding:64px 0 56px;
  background-image:linear-gradient(180deg,rgba(10,14,19,.72),rgba(10,14,19,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.6;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.4px;color:var(--t-2);margin-bottom:20px}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:var(--t-3)}
.crumbs .current{color:var(--c-primary)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;letter-spacing:-.02em;line-height:1.2;
  max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{margin-top:18px;max-width:720px;color:var(--t-2);font-size:17px;line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* 锚点胶囊导航 */
.anchor-bar{
  position:relative;
  background:var(--c-bg-2);
  border-bottom:1px solid var(--c-line);
  padding:16px 0;
}
.anchor-bar .container{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.03);
  font-size:14px;color:var(--t-2);
}
.pill i{color:var(--c-primary);font-size:12px}
.pill:hover{color:var(--t-1);border-color:rgba(23,225,176,.45);background:rgba(23,225,176,.08);transform:translateY(-2px)}
.pill:active{transform:translateY(0)}

/* 通用板块 */
.section{padding:var(--sect) 0}
.section-alt{background:var(--c-bg-2)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.section-head p{margin-top:14px;color:var(--t-2);font-size:16.5px}
.split-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{color:var(--c-primary);font-size:14.5px;font-weight:600;white-space:nowrap}
.link-more:hover{opacity:.82;transform:translateX(2px)}

/* 交错图文行 */
.alt-stack{display:flex;flex-direction:column;gap:72px}
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.alt-row.is-rev .alt-media{order:2}
.alt-row.is-rev .alt-body{order:1}
.media-frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
  background:var(--c-surface);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.media-frame img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s ease}
.media-frame:hover img{transform:scale(1.03)}
.media-tag{
  position:absolute;top:14px;left:14px;
  padding:5px 12px;border-radius:999px;font-size:12.2px;font-weight:600;
  background:rgba(10,14,19,.78);border:1px solid rgba(23,225,176,.35);color:var(--c-primary);
  backdrop-filter:blur(6px);
}
.alt-body h3{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.alt-body p{margin-top:14px;color:var(--t-2)}
.alt-body .mini-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.alt-body .mini-list li{display:flex;gap:12px;align-items:flex-start;color:var(--t-2);font-size:15.6px;line-height:1.8}
.alt-body .mini-list i{color:var(--c-primary);margin-top:7px;font-size:12px}

/* 时间轴 */
.timeline{position:relative;margin-top:8px;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(23,225,176,.65),rgba(23,225,176,.08));
}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-34px;top:22px;width:20px;height:20px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-primary);
  box-shadow:0 0 0 4px rgba(23,225,176,.12);
}
.tl-dot::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--c-primary)}
.tl-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);padding:24px 26px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);border-left-color:var(--c-primary);box-shadow:var(--shadow-card)}
.tl-date{font-size:13px;letter-spacing:.08em;color:var(--c-accent);font-weight:600}
.tl-card h3{margin-top:8px;font-size:19px;font-weight:600}
.tl-card p{margin-top:10px;color:var(--t-2);font-size:15.6px}
.tl-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;color:var(--c-primary);font-weight:600}
.tl-link:hover{gap:10px;opacity:.85}

/* 要点卡 */
.point-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.point-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;position:relative;overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.point-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);opacity:.86}
.point-card:hover{transform:translateY(-4px);border-color:rgba(23,225,176,.4);box-shadow:var(--shadow-card)}
.point-num{font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.1em}
.point-card h3{margin-top:10px;font-size:17.5px;font-weight:600}
.point-card p{margin-top:8px;color:var(--t-2);font-size:15.4px;line-height:1.85}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:rgba(23,225,176,.4);background:#18212B;border-left:3px solid var(--c-primary)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--c-primary);
  transition:transform .25s ease;font-weight:400;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--t-2);font-size:15.6px;line-height:1.85}
.faq-item:hover{border-color:rgba(23,225,176,.32)}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:rgba(23,225,176,.06);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  padding:80px 0;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(23,225,176,.18),transparent 68%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;position:relative;z-index:2}
.cta-copy h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.015em}
.cta-copy p{margin-top:16px;color:var(--t-2);max-width:520px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:center;color:var(--t-2);font-size:15.4px}
.cta-points i{color:var(--c-primary)}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);max-width:640px;
}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px}
.form-card .form-hint{font-size:13.6px;color:var(--t-3);margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.4px;color:var(--t-2);margin-bottom:8px}
.field label .req{color:var(--c-primary);margin-left:4px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:#101720;border:1px solid var(--c-line);color:var(--t-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,225,176,.18);
}
.field input::placeholder,.field textarea::placeholder{color:var(--t-3)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-success{
  display:none;padding:16px 18px;border-radius:var(--r-btn);
  background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.35);
  color:#8DE7B6;font-size:14.6px;
}

/* 相关条目 */
.rel-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:8px}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:transform .2s ease,border-color .2s ease;
}
.rel-item:hover{transform:translateY(-3px);border-color:rgba(23,225,176,.4)}
.rel-item span{font-size:15.4px;font-weight:600}
.rel-item i{color:var(--c-primary);font-size:13px}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:26px;bottom:28px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:999px;
  background:var(--c-primary-deep);color:var(--c-primary-ink);
  font-size:14.6px;font-weight:700;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 16px 34px rgba(0,0,0,.5);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{transform:translateY(-2px)}
.float-cta:active{transform:translateY(0)}

/* 页脚 */
.site-footer{background:#070A0E;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px}
.logo-mark{display:grid;place-items:center}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2}
.footer-brand-text b{font-size:16.5px;color:var(--t-1)}
.footer-brand-text span{font-size:11.6px;color:var(--c-primary);letter-spacing:.14em}
.footer-desc{margin-top:16px;color:var(--t-2);font-size:14.6px;max-width:340px;line-height:1.85}
.footer-domain{margin-top:14px;font-size:13px;color:var(--t-3);letter-spacing:.04em}
.footer-col h4{font-size:15px;font-weight:600;color:var(--t-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.4px;color:var(--t-2)}
.footer-col a:hover{color:#fff;transform:translateX(2px);display:inline-block}
.footer-contact li{font-size:14px;color:var(--t-2)}
.footer-contact b{color:var(--t-1);font-weight:600}
.qr-box{
  margin-top:16px;width:120px;height:120px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;text-align:center;
  font-size:12.6px;color:var(--t-3);line-height:1.6;padding:10px;
  background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}

/* 响应式 */
@media (max-width:1024px){
  :root{--sect:72px}
  .header-inner{gap:18px}
  .main-nav{gap:2px}
  .main-nav a{padding:9px 10px;font-size:14.4px}
  .alt-row{gap:34px}
  .point-cards{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-grid{gap:34px}
}
@media (max-width:768px){
  body{font-size:16.5px}
  :root{--sect:56px}
  section{scroll-margin-top:112px}
  .topbar-tip{display:none}
  .main-nav{
    position:fixed;inset:110px 16px auto 16px;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(16,22,29,.98);border:1px solid var(--c-line);border-radius:16px;
    padding:16px;box-shadow:var(--shadow-card);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .main-nav a{padding:13px 14px;border-radius:10px;font-size:15.4px}
  .main-nav a.is-active::after{left:14px;right:auto;width:20px}
  .header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .alt-row{grid-template-columns:1fr;gap:22px}
  .alt-row.is-rev .alt-media{order:0}
  .alt-row.is-rev .alt-body{order:0}
  .alt-stack{gap:52px}
  .point-cards{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .rel-list{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .timeline{padding-left:34px}
  .timeline::before{left:21px}
  .tl-dot{left:-22px}
  .float-cta{
    right:16px;left:16px;bottom:calc(14px + env(safe-area-inset-bottom));
    justify-content:center;border-radius:14px;
  }
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .grid-container{padding-left:16px;padding-right:16px}
  .page-hero{min-height:320px;padding:44px 0 40px}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px)}
  .hero-lead{font-size:15.8px}
  .anchor-bar .container{gap:8px}
  .pill{padding:8px 14px;font-size:13.2px}
  .tl-card{padding:20px}
  .form-card{padding:22px}
  .footer-bottom{flex-direction:column;gap:8px}
  .crumbs{font-size:12.8px}
}