/* roulang page: index */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --radius-card:16px;
  --radius-field:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --focus-ring:0 0 0 3px rgba(14,127,142,.18);
  --container:1240px;
  --font-sans:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Roboto Mono",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-strong)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.015em;line-height:1.35;color:var(--ink)}
h1{font-size:clamp(28px,4.4vw,46px);line-height:1.25;font-weight:800;letter-spacing:.018em}
h2{font-size:clamp(22px,3vw,32px);font-weight:700}
h3{font-size:19px;font-weight:600;line-height:1.5}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{max-width:720px}
.section-head p{margin:10px 0 0;color:var(--muted);font-size:15.5px;max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--primary);font-weight:600;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:block}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:height .2s ease,box-shadow .2s ease;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  height:78px;
}
.site-header.is-stuck{box-shadow:0 6px 18px -14px rgba(11,27,31,.28)}
.site-header.is-stuck .header-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--ink);flex:none}
.logo:hover{color:var(--ink)}
.logo-glyph{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border-radius:9px;background:var(--ink);color:#fff;
}
.logo-glyph svg{width:20px;height:20px;display:block}
.logo-text{font-size:19px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary)}
.nav-desktop{display:flex;align-items:center;gap:36px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{
  width:42px;height:42px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);
  cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:rgba(14,127,142,.35);background:var(--primary-soft)}
.icon-btn span{display:block;width:17px;height:1.5px;background:var(--ink);position:relative}
.icon-btn span::after{content:"";position:absolute;left:0;top:5px;width:17px;height:1.5px;background:var(--ink)}
.menu-toggle{display:none}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:rgba(14,127,142,.45);color:var(--primary);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);border-color:transparent}
.btn-light:hover{background:#fff;color:var(--primary);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14.5px}
.btn-lg{height:52px;padding:0 30px;font-size:16.5px}
.btn-block{width:100%}
.btn[disabled],.btn.is-loading{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-pill{border-radius:999px}
.link-ghost{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--primary);border-bottom:1px solid rgba(14,127,142,.35);padding-bottom:2px;
}
.link-ghost:hover{border-bottom-color:var(--primary);color:var(--primary-strong)}
.link-ghost::after{content:"→";transition:transform .2s ease}
.link-ghost:hover::after{transform:translateX(4px)}

/* ===== Tags ===== */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  font-size:13px;font-weight:600;background:var(--primary-soft);color:var(--primary);
  letter-spacing:.01em;white-space:nowrap;
}
.tag-accent{background:var(--accent-soft);color:var(--accent)}

/* ===== Countdown bar ===== */
.countdown-bar{background:var(--ink-2);color:#DDEBED;border-bottom:1px solid rgba(255,255,255,.06)}
.cd-inner{display:flex;align-items:center;gap:22px;height:58px}
.cd-label{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:#fff;
  padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.08);white-space:nowrap;
}
.cd-label i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.cd-text{font-size:14px;color:#9DBCC1;white-space:nowrap}
.cd-clock{display:flex;align-items:center;gap:6px;margin-left:auto}
.cd-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:#fff;min-width:44px;text-align:center;
  letter-spacing:.04em;
}
.cd-num.is-sec{color:var(--accent)}
.cd-sep{width:1px;height:20px;background:rgba(255,255,255,.16)}
.cd-unit{font-size:12px;color:#8CA8AD;margin-left:2px}
.cd-btn{
  height:34px;padding:0 16px;border-radius:9px;background:#fff;color:var(--ink);
  font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;
  border:1px solid transparent;transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.cd-btn:hover{background:var(--primary-soft);color:var(--primary)}
@keyframes cdFlip{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.cd-num.flip{animation:cdFlip .2s ease}

/* ===== Hero ===== */
.hero{padding:86px 0 96px;position:relative;overflow:hidden;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(14,127,142,.055) 0 1px,transparent 1px 26px);
  opacity:.9;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:19px;line-height:1.85;color:var(--muted);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero-facts{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13.5px;color:var(--muted)}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);display:block}
.hero-facts span:first-child::before{display:none}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);background:var(--ink)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,27,31,.12) 0%,rgba(11,27,31,0) 55%);
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:12px;padding:12px 16px;
  display:flex;align-items:center;gap:12px;box-shadow:var(--shadow-1);
}
.hero-badge b{font-family:var(--font-mono);font-size:20px;color:var(--primary);font-weight:700}
.hero-badge small{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}

/* ===== Feature list ===== */
.feature-list{border-top:1px solid var(--line)}
.feature-row{
  display:grid;grid-template-columns:104px 1fr 40px;gap:28px;align-items:start;
  padding:30px 12px;border-bottom:1px solid var(--line);
  transition:background .22s ease;position:relative;
}
.feature-row:hover{background:#fff}
.feature-num{
  font-family:var(--font-mono);font-size:34px;font-weight:700;line-height:1.1;
  color:transparent;-webkit-text-stroke:1.4px var(--accent);letter-spacing:.02em;
}
.feature-row h3{margin-bottom:8px}
.feature-row p{color:var(--muted);font-size:15.5px;max-width:760px;margin:0}
.feature-arrow{
  align-self:center;font-size:20px;color:var(--primary);opacity:0;transform:translateX(-6px);
  transition:opacity .22s ease,transform .22s ease;
}
.feature-row:hover .feature-arrow{opacity:1;transform:translateX(0)}

/* ===== Wall ===== */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:172px;gap:20px}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--ink);display:block;
}
.wall-item:nth-child(1){grid-column:span 2;grid-row:span 2}
.wall-item:nth-child(6){grid-column:span 2}
.wall-item:nth-child(7){grid-column:span 2}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,27,31,0) 40%,rgba(11,27,31,.72) 100%);
  transition:opacity .3s ease;
}
.wall-item:hover img{transform:scale(1.03)}
.wall-item:hover::after{opacity:1;background:linear-gradient(180deg,rgba(11,27,31,.1) 30%,rgba(11,27,31,.82) 100%)}
.wall-cap{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  color:#fff;font-size:14px;font-weight:600;line-height:1.6;
}
.wall-cap small{display:block;font-weight:400;font-size:12.5px;color:rgba(255,255,255,.72);margin-top:2px}

/* ===== News (CMS) ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-item{
  display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.news-item:hover{box-shadow:var(--shadow-2);border-color:rgba(14,127,142,.3);transform:translateY(-2px)}
.news-thumb{display:block;border-radius:12px;overflow:hidden;background:var(--primary-soft)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column;gap:8px;height:100%}
.news-title{font-size:17.5px;font-weight:700;line-height:1.55;color:var(--ink);margin:0}
.news-title a{color:var(--ink)}
.news-title a:hover{color:var(--primary)}
.news-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;line-height:1.75;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--muted)}
.news-meta time{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.news-meta .news-read{margin-left:auto;font-size:13.5px;font-weight:600;color:var(--primary)}
.news-meta .news-read:hover{color:var(--primary-strong)}
.empty-state{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state p{color:var(--muted);font-size:15px;margin:0}

/* ===== Signup CTA ===== */
.signup{
  background:var(--ink-2);color:#E6F0F2;position:relative;overflow:hidden;
}
.signup::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(60deg,rgba(255,255,255,.05) 0 1px,transparent 1px 30px);
}
.signup-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.signup h2{color:#fff;margin-bottom:18px}
.signup-lead{color:#A6C2C7;font-size:16.5px;max-width:520px;margin-bottom:26px}
.signup-points{display:flex;flex-direction:column;gap:12px}
.signup-points li{display:flex;gap:12px;font-size:15px;color:#C6DBDE;align-items:flex-start}
.signup-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px;flex:none}
.form-card{background:#fff;border-radius:var(--radius-card);padding:30px;box-shadow:0 24px 48px -30px rgba(0,0,0,.6)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-note{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--radius-field);background:#FBFDFE;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:var(--focus-ring);
}
.field.has-error input,.field.has-error textarea{border:1.5px solid var(--accent)}
.field-error{font-size:13px;color:var(--accent);margin-top:6px;min-height:18px;display:none}
.field.has-error .field-error{display:block}
.form-foot{display:flex;align-items:center;gap:14px;margin-top:6px}
.form-foot small{font-size:12.5px;color:var(--muted);line-height:1.6}
.form-success{
  display:none;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--radius-field);
  background:var(--primary-soft);color:var(--primary-strong);font-size:14px;font-weight:600;margin-bottom:14px;
}
.form-success.show{display:flex}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
}
.faq-q h3{font-size:17px;font-weight:600;color:var(--ink);margin:0;line-height:1.6}
.faq-plus{position:relative;width:16px;height:16px;flex:none;transition:transform .2s ease}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--primary);border-radius:1px}
.faq-plus::before{left:0;top:7.2px;width:16px;height:1.6px}
.faq-plus::after{left:7.2px;top:0;width:1.6px;height:16px}
.faq-item.open .faq-plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease;
}
.faq-item.open .faq-a{max-height:520px}
.faq-a-inner{
  background:var(--bg);border-left:2px solid var(--primary);
  padding:18px 22px;margin:0 0 22px;border-radius:0 10px 10px 0;
  font-size:15.5px;color:var(--muted);line-height:1.9;
}

/* ===== Breadcrumb strip ===== */
.crumb-strip{border-top:1px solid var(--line);background:var(--bg)}
.crumb-strip .container{padding-top:22px;padding-bottom:22px;display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--muted)}
.crumb-strip span{opacity:.7}
.crumb-strip a{color:var(--muted)}
.crumb-strip a:hover{color:var(--primary)}

/* ===== Footer ===== */
.site-footer{background:var(--ink-2);color:#A6C2C7;padding:66px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 30px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.08)}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:#fff;margin-bottom:18px}
.footer-brand .logo-glyph{background:var(--primary);color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text em{color:#7FD5DF}
.footer-desc{color:#8FAFB4;line-height:1.9;max-width:320px;margin-bottom:16px}
.footer-kw{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#7FD5DF}
.footer-kw::before{content:"";width:20px;height:1px;background:var(--primary)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#A6C2C7}
.footer-links a:hover{color:#fff}
.footer-info{display:flex;flex-direction:column;gap:12px;color:#8FAFB4}
.footer-info b{color:#DCEAEC;font-weight:600}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;
  font-size:13px;color:#7C979C;
}
.footer-bottom p{margin:0}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24);display:block}

/* ===== Mobile panel ===== */
.mobile-panel{
  position:fixed;inset:0;z-index:120;background:rgba(246,249,250,.98);
  display:flex;flex-direction:column;padding:26px 22px 34px;
  transform:translateX(100%);transition:transform .3s ease;visibility:hidden;
}
.mobile-panel.open{transform:translateX(0);visibility:visible}
.mobile-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.mobile-close{
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;position:relative;cursor:pointer;
}
.mobile-close::before,.mobile-close::after{
  content:"";position:absolute;left:12px;top:20px;width:17px;height:1.5px;background:var(--ink);
}
.mobile-close::before{transform:rotate(45deg)}
.mobile-close::after{transform:rotate(-45deg)}
.mobile-nav{display:flex;flex-direction:column}
.mobile-nav a{
  font-size:20px;font-weight:600;color:var(--ink);padding:18px 2px;
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--primary)}
.mobile-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:16px}
.mobile-foot .btn{width:100%}
.mobile-foot small{font-size:13px;color:var(--muted);text-align:center}

/* ===== Responsive ===== */
@media (max-width:1440px){
  .container{padding:0 28px}
}
@media (max-width:1280px){
  .wall{grid-auto-rows:158px}
  .news-item{grid-template-columns:170px 1fr}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-desktop{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  .section{padding:80px 0}
  .hero{padding:64px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:-1}
  .signup-grid{grid-template-columns:1fr;gap:40px}
  .wall{grid-template-columns:repeat(3,1fr);grid-auto-rows:158px}
  .wall-item:nth-child(1){grid-column:span 2;grid-row:span 2}
  .wall-item:nth-child(6),.wall-item:nth-child(7){grid-column:span 2}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col{padding:0 0 30px}
  .footer-col + .footer-col{border-left:0;border-top:1px solid rgba(255,255,255,.08);padding-top:26px}
  .footer-col:nth-child(2){border-top:0;padding-top:0}
  .footer-col:nth-child(3){border-top:1px solid rgba(255,255,255,.08)}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .cd-inner{height:44px;gap:12px;overflow:hidden}
  .cd-text,.cd-btn{display:none}
  .cd-num{font-size:18px;min-width:34px}
  .cd-label{font-size:12.5px;padding:3px 10px}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .hero{padding:48px 0 56px}
  .hero-sub{font-size:17px}
  .hero-facts{gap:8px 12px;font-size:13px}
  .feature-row{grid-template-columns:64px 1fr;gap:16px;padding:24px 4px}
  .feature-num{font-size:26px}
  .feature-arrow{display:none}
  .wall{grid-template-columns:1fr;grid-auto-rows:200px}
  .wall-item:nth-child(1),
  .wall-item:nth-child(6),
  .wall-item:nth-child(7){grid-column:span 1;grid-row:span 1}
  .news-item{grid-template-columns:1fr;gap:14px;padding:16px}
  .news-thumb img{aspect-ratio:16/9}
  .signup-grid{gap:30px}
  .form-card{padding:22px}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0 0 26px}
  .footer-col + .footer-col{border-top:1px solid rgba(255,255,255,.08);padding-top:24px}
  .footer-col:nth-child(2){border-top:1px solid rgba(255,255,255,.08);padding-top:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-a-inner{padding:16px 16px}
}
@media (max-width:480px){
  .logo-text{font-size:17px}
  .cd-clock{margin-left:auto}
  .cd-num{min-width:30px;font-size:17px}
  .hero-actions .btn{width:100%}
  .wall{grid-auto-rows:180px}
}

/* roulang page: article */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --text:#1F3439;
  --radius:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-strong)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.015em}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,127,142,.18);border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px -18px rgba(11,27,31,.5)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:78px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.logo-glyph{
  width:30px;height:30px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:9px;
}
.logo-glyph svg{width:19px;height:19px}
.logo-text{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px}
.nav-desktop{display:flex;align-items:center;gap:36px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:#3A4E53;
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:rgba(14,127,142,.4);background:#fff}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);position:relative}
.menu-toggle span::after{content:"";position:absolute;left:0;top:5px;width:16px;height:1.5px;background:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}
.btn-outline:hover{border-color:rgba(14,127,142,.5);color:var(--primary-strong);transform:translateY(-2px)}
.btn-ghost{
  background:transparent;
  border:0;
  color:var(--primary);
  padding:0 4px;
  text-decoration:underline;
  text-underline-offset:5px;
  text-decoration-thickness:1px;
}
.btn-ghost:hover{color:var(--primary-strong)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 移动面板 ---------- */
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:95;
  background:rgba(246,249,250,.98);
  padding:22px 18px 32px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-panel[hidden]{display:none}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.mobile-title{font-size:15px;font-weight:600;color:var(--muted)}
.panel-close{
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:20px;
  line-height:1;
  color:var(--ink);
  cursor:pointer;
}
.mobile-nav{display:flex;flex-direction:column;margin:8px 0 22px}
.mobile-nav a{
  font-size:20px;
  font-weight:600;
  color:var(--ink);
  padding:16px 2px;
  border-bottom:1px solid var(--line);
}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a.active{color:var(--primary)}
.mobile-contact{margin-top:18px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(255,255,255,.94),rgba(246,249,250,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.article-head-inner{padding:34px 0 44px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#AFC1C5}
.breadcrumb .current{color:#7C9095;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.35;
  font-weight:800;
  max-width:900px;
  letter-spacing:.018em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:22px;
  font-size:14px;
  color:var(--muted);
}
.meta-tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C6D5D8}
.meta-time{font-family:var(--mono);font-size:13.5px;letter-spacing:0}

/* ---------- 主体布局 ---------- */
.article-wrap{padding:56px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:44px 46px 40px;
  max-width:800px;
}
.article-body{font-size:16.5px;line-height:1.9;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.45;
  font-weight:700;
  margin:2em 0 .8em;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.2em;
  width:4px;border-radius:2px;
  background:var(--primary);
}
.article-body h3{font-size:18px;font-weight:600;line-height:1.55;margin:1.6em 0 .6em}
.article-body h4{font-size:16.5px;font-weight:600;margin:1.4em 0 .5em}
.article-body strong{font-weight:600;color:var(--ink)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(14,127,142,.35)}
.article-body a:hover{color:var(--primary-strong);border-bottom-color:var(--primary-strong)}
.article-body img{
  width:auto;max-width:100%;height:auto;
  border-radius:var(--radius);
  margin:1.4em auto;
  box-shadow:var(--shadow-1);
}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body blockquote{
  margin:1.4em 0;
  padding:16px 20px;
  background:var(--bg);
  border-left:3px solid var(--line);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:15px;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.15em}
.article-body li{position:relative;padding-left:24px;margin-bottom:.5em}
.article-body ul>li::before{
  content:"";
  position:absolute;left:5px;top:.75em;
  width:6px;height:6px;border-radius:2px;
  background:var(--primary);
}
.article-body ol{counter-reset:li}
.article-body ol>li{counter-increment:li}
.article-body ol>li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:.22em;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--primary);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:1.4em 0;
  border:1px solid var(--line);
}
.article-body th,.article-body td{
  padding:12px 14px;
  border:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--primary-soft);color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBFDFE}
.article-body code{
  font-family:var(--mono);
  font-size:14px;
  background:var(--primary-soft);
  color:var(--primary-strong);
  padding:2px 6px;
  border-radius:6px;
}
.article-empty{
  text-align:center;
  padding:36px 8px 26px;
}
.article-empty .empty-art{
  width:64px;height:64px;
  margin:0 auto 18px;
  border:1px solid var(--line);
  border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
}
.article-empty .empty-art svg{width:26px;height:26px}
.article-empty h2{font-size:20px;font-weight:700;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* 标签行 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:38px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:6px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
}
.tag:hover{background:#D3EBEE;color:var(--primary-strong)}

/* 返回入口 */
.back-block{
  margin-top:44px;
  padding-top:34px;
  border-top:1px solid var(--line);
  text-align:center;
}
.back-block .btn{margin-bottom:14px}
.back-block .back-link{font-size:14px}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:22px 22px 20px;
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  padding-bottom:14px;
  margin-bottom:16px;
  border-bottom:1px solid var(--line);
}
.side-list{display:flex;flex-direction:column;gap:16px}
.side-item{display:flex;gap:12px;align-items:flex-start}
.side-num{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  flex:0 0 auto;
  padding-top:2px;
}
.side-item a{
  font-size:15px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink);
  display:block;
}
.side-item a:hover{color:var(--primary)}
.side-item span.side-sub{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}
.side-cta{
  background:var(--primary-soft);
  border:1px solid #CFE6E9;
  border-radius:var(--radius);
  padding:22px;
}
.side-cta h3{font-size:16px;font-weight:700;margin-bottom:10px}
.side-cta p{font-size:14px;color:#43646A;line-height:1.8;margin-bottom:16px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 84px}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
}
.related-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700}
.related-head p{font-size:14px;color:var(--muted);margin-top:8px}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,127,142,.3)}
.rel-thumb{
  position:relative;
  width:100%;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--bg);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
  margin-top:auto;
}
.rel-foot .rel-time{font-family:var(--mono);font-size:12.5px}

/* ---------- 窄幅 CTA 条 ---------- */
.band-cta{
  background:var(--primary-soft);
  border-top:1px solid #CFE6E9;
  border-bottom:1px solid #CFE6E9;
}
.band-cta .band-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:30px 0;
}
.band-cta h2{font-size:clamp(19px,2.2vw,23px);font-weight:700}
.band-cta p{font-size:14px;color:#43646A;margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-2);
  color:#C4D6D9;
  border-top:1px solid rgba(255,255,255,.12);
  padding:62px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:0;
}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-brand .logo-glyph{background:rgba(255,255,255,.08);color:#7FD3DC}
.footer-brand .logo-text{color:#fff;font-size:18px;font-weight:800}
.footer-brand .logo-text em{font-style:normal;color:#7FD3DC}
.footer-desc{font-size:14px;line-height:1.85;color:#9FB6BA;margin-bottom:14px}
.footer-kw{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:6px;
  background:rgba(127,211,220,.12);
  color:#7FD3DC;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:#9FB6BA}
.footer-links a:hover{color:#7FD3DC}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#9FB6BA}
.footer-info b{color:#D7E5E7;font-weight:600}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:#8AA3A7;
}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.25)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-main{max-width:100%;padding:40px 38px 36px}
  .article-aside{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .side-cta{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .footer-col:nth-child(odd){padding-left:0}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-desktop{display:none}
  .header-inner{height:68px;gap:16px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-wrap{padding:44px 0 72px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header-inner{height:64px}
  .logo-text{font-size:17px}
  .article-head-inner{padding:24px 0 32px}
  .breadcrumb .current{max-width:200px}
  .article-main{padding:26px 20px 26px;border-radius:14px}
  .article-body{font-size:16px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-aside{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .related{padding-bottom:64px}
  .band-cta .band-inner{flex-direction:column;align-items:flex-start;padding:26px 0}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-col{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.1);padding-top:26px}
  .footer-col:first-child{border-top:0;padding-top:0}
  .site-footer{padding-top:44px}
}
@media (max-width:520px){
  .header-actions .btn{display:none}
  .article-title{font-size:24px}
  .article-meta{gap:10px}
}

/* roulang page: category1 */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --radius:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-strong);}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:.015em;color:var(--ink);}
h1{font-size:clamp(28px,4.4vw,46px);line-height:1.25;font-weight:800;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;}
h3{font-size:19px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;color:var(--ink-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,127,142,.18);border-radius:8px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px -14px rgba(11,27,31,.35);}
.header-inner{display:flex;align-items:center;gap:28px;height:78px;transition:height .25s ease;}
.site-header.is-stuck .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:19px;}
.logo:hover{color:var(--ink);}
.logo-glyph{width:30px;height:30px;display:inline-flex;color:var(--primary);}
.logo-glyph svg{width:100%;height:100%;}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px;}
.nav-desktop{display:flex;align-items:center;gap:36px;margin-left:24px;flex:1;}
.nav-link{position:relative;color:var(--ink-2);font-size:15px;font-weight:500;padding:6px 0;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border:1px solid var(--line);background:var(--surface);border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:rgba(14,127,142,.35);}
.menu-toggle{display:none;}
.menu-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);position:relative;}
.menu-toggle span::after{content:"";position:absolute;left:0;top:6px;width:20px;height:1.5px;background:var(--ink);}

/* ---------- mobile panel ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:90;background:rgba(246,249,250,.98);
  display:none;flex-direction:column;padding:22px 20px 28px;
}
.mobile-panel.open{display:flex;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.panel-close{position:relative;}
.panel-close span{position:absolute;inset:0;margin:auto;width:18px;height:1.5px;background:var(--ink);transform:rotate(45deg);}
.panel-close span::after{content:"";position:absolute;left:0;top:0;width:18px;height:1.5px;background:var(--ink);transform:rotate(90deg);}
.mobile-nav{display:flex;flex-direction:column;margin-top:8px;}
.mobile-nav a{
  color:var(--ink-2);font-size:20px;font-weight:500;padding:18px 2px;border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--primary);font-weight:700;}
.mobile-panel-foot{margin-top:auto;padding-top:22px;}
.mobile-panel-foot .btn{width:100%;justify-content:center;}
.mobile-panel-foot p{margin-top:12px;font-size:13.5px;color:var(--muted);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink-2);}
.btn-outline:hover{border-color:rgba(14,127,142,.4);color:var(--primary);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-ghost{height:auto;padding:0;background:none;border:none;color:var(--primary);font-weight:600;border-bottom:1px solid rgba(14,127,142,.4);border-radius:0;}
.btn-ghost:hover{color:var(--primary-strong);border-bottom-color:var(--primary-strong);}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.btn.is-loading{opacity:.7;cursor:progress;}

/* ---------- page hero ---------- */
.page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 46px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--ink-2);}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;margin-bottom:16px;
  background:var(--primary-soft);color:var(--primary);border-radius:6px;font-size:13px;font-weight:600;
}
.page-hero-desc{max-width:720px;font-size:16.5px;color:var(--muted);margin-top:16px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line);}
.fact{display:flex;flex-direction:column;gap:2px;}
.fact b{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:22px;font-weight:700;color:var(--ink);}
.fact span{font-size:13px;color:var(--muted);}
.hero-deco{width:100%;color:var(--primary);opacity:.5;}

/* ---------- rail layout ---------- */
.section{padding:88px 0;}
.layout-rail{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start;}
.rail{position:sticky;top:104px;}
.rail-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:14px;}
.rail-nav{display:flex;flex-direction:column;border-left:1px solid var(--line);}
.rail-link{
  position:relative;padding:12px 0 12px 18px;font-size:15px;color:var(--muted);transition:color .2s ease;
}
.rail-link::before{
  content:"";position:absolute;left:-1px;top:14px;width:1px;height:calc(100% - 28px);background:transparent;transition:background .2s ease;
}
.rail-link::after{
  content:"";position:absolute;left:8px;top:50%;width:6px;height:6px;border-radius:50%;background:var(--line);transform:translateY(-50%);transition:background .2s ease;
}
.rail-link:hover{color:var(--ink);}
.rail-link.active{color:var(--ink);font-weight:700;}
.rail-link.active::after{background:var(--primary);}
.rail-link.active::before{background:var(--primary);}
.rail-note{
  margin-top:24px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  font-size:13.5px;color:var(--muted);line-height:1.75;
}
.rail-note b{display:block;color:var(--ink);font-size:14px;margin-bottom:4px;}

/* ---------- blocks ---------- */
.block{margin-bottom:72px;scroll-margin-top:100px;}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:30px;max-width:760px;}
.block-head h2{margin-bottom:12px;}
.block-head p{font-size:15.5px;color:var(--muted);}
.block-index{
  display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;margin-bottom:10px;
}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.card:hover{box-shadow:var(--shadow-2);border-color:rgba(14,127,142,.3);transform:translateY(-4px);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,27,31,0) 45%,rgba(11,27,31,.12) 100%);
}
.card-body{padding:22px 24px 24px;}
.card-title{font-size:19px;font-weight:700;line-height:1.5;margin-bottom:10px;}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;}
.tag-accent{background:var(--accent-soft);color:var(--accent);}
.meta-num{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}

/* ---------- steps ---------- */
.steps{border-top:1px solid var(--line);}
.step{display:flex;gap:26px;padding:26px 8px;border-bottom:1px solid var(--line);transition:background .2s ease;}
.step:hover{background:#FBFDFE;}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:26px;font-weight:700;line-height:1.2;
  color:transparent;-webkit-text-stroke:1px var(--accent);min-width:56px;
}
.step-body h3{margin-bottom:6px;}
.step-body p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);}
.data-table{width:100%;min-width:680px;border-collapse:collapse;font-size:14.5px;}
.data-table th{
  background:var(--primary-soft);color:var(--ink);text-align:left;font-weight:600;font-size:13.5px;
  padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);}
.data-table tbody tr:nth-child(even){background:#FBFDFE;}
.data-table tbody tr:last-child td{border-bottom:none;}
.state{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);}
.state::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
.state.wait{color:var(--accent);}
.state.wait::before{background:var(--accent);}

/* ---------- form ---------- */
.signup-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:28px;align-items:start;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 28px;box-shadow:var(--shadow-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field .req{color:var(--accent);margin-left:4px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#FBFDFE;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(14,127,142,.18);
}
.field.has-error input,.field.has-error textarea{border:1.5px solid var(--accent);}
.error-text{display:none;margin-top:6px;font-size:13px;color:var(--accent);}
.field.has-error .error-text{display:block;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}
.form-status{margin-top:14px;font-size:14px;color:var(--primary);display:none;}
.form-status.show{display:block;}
.side-list{border-top:1px solid var(--line);}
.side-list li{display:flex;gap:14px;padding:18px 4px;border-bottom:1px solid var(--line);}
.side-list b{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--accent);font-size:14px;min-width:28px;}
.side-list span{font-size:14.5px;color:var(--muted);}
.side-list strong{display:block;color:var(--ink);font-size:15.5px;font-weight:600;margin-bottom:2px;}

/* ---------- faq ---------- */
.faq{max-width:860px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:none;padding:20px 2px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-mark{position:relative;width:14px;height:14px;flex:0 0 14px;}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--primary);transition:transform .2s ease;}
.faq-mark::before{left:0;top:6.5px;width:14px;height:1px;}
.faq-mark::after{left:6.5px;top:0;width:1px;height:14px;}
.faq-item.open .faq-mark::after{transform:rotate(45deg);}
.faq-a{display:none;padding:0 0 22px 14px;border-left:2px solid var(--primary);background:var(--bg);padding:16px 18px 18px 18px;margin-bottom:18px;border-radius:0 10px 10px 0;}
.faq-item.open .faq-a{display:block;}
.faq-a p{font-size:15px;color:var(--muted);margin:0;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--primary-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:36px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:22px;margin-bottom:6px;}
.cta-inner p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-2);color:#CFDEE1;padding:62px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1);}
.footer-col:first-child{border-left:none;padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-brand .logo-glyph{color:#5CC7D4;}
.footer-brand .logo-text em{font-style:normal;color:#5CC7D4;margin-left:2px;}
.footer-desc{font-size:14px;color:#9FB5BA;line-height:1.8;margin-bottom:14px;}
.footer-kw{display:inline-flex;align-items:center;height:26px;padding:0 12px;border:1px solid rgba(92,199,212,.4);border-radius:6px;color:#5CC7D4;font-size:13px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#9FB5BA;font-size:14px;}
.footer-links a:hover{color:#5CC7D4;}
.footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;color:#9FB5BA;}
.footer-info b{color:#CFDEE1;font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8AA1A6;
}
.footer-bottom p{margin:0;color:#8AA1A6;font-size:13px;}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:#4A6A70;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-desktop{gap:24px;margin-left:8px;}
  .page-hero-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .hero-deco{max-width:220px;}
  .section{padding:72px 0;}
  .layout-rail{grid-template-columns:minmax(0,1fr);gap:28px;}
  .rail{position:sticky;top:72px;background:var(--bg);padding:10px 0 12px;border-bottom:1px solid var(--line);z-index:20;}
  .rail-title{display:none;}
  .rail-nav{flex-direction:row;gap:22px;border-left:none;overflow-x:auto;padding-bottom:2px;}
  .rail-link{padding:6px 0;white-space:nowrap;}
  .rail-link::before,.rail-link::after{display:none;}
  .rail-link.active{color:var(--primary);}
  .rail-note{display:none;}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
  .signup-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 0;}
  .footer-col:nth-child(3){border-left:none;padding-left:0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .nav-desktop{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
  .header-inner{height:68px;}
  .page-hero{padding:30px 0 34px;}
  .hero-facts{gap:18px;margin-top:20px;}
  .fact b{font-size:19px;}
  .section{padding:56px 0;}
  .grid-2{grid-template-columns:minmax(0,1fr);}
  .block{margin-bottom:52px;}
  .step{flex-direction:column;gap:8px;padding:20px 2px;}
  .step-num{font-size:22px;min-width:auto;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-col{padding:0;border-left:none;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;}
  .footer-col:first-child{border-top:none;padding-top:0;}
  .footer-bottom{gap:8px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .card-body{padding:18px 18px 20px;}
  .form-card{padding:20px 18px 22px;}
  .faq-q{font-size:16px;padding:18px 2px;}
  .btn{width:100%;}
  .header-actions .btn{width:auto;}
  .btn-ghost{width:auto;}
  .cta-inner .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --radius:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-strong);}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,127,142,.18);border-radius:8px;}

.container{max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:.01em;}
.section-head p{color:var(--muted);font-size:15px;max-width:620px;margin-top:8px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.06em;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.6;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);background:var(--primary-strong);}
.btn-line{border-color:var(--line);color:var(--ink);background:var(--surface);}
.btn-line:hover{border-color:rgba(14,127,142,.35);color:var(--primary-strong);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;
  border:0;background:transparent;padding:0;border-bottom:1px solid rgba(14,127,142,.4);
  border-radius:0;transition:border-color .2s ease,color .2s ease,gap .2s ease;
}
.btn-text:hover{color:var(--primary-strong);border-color:var(--primary-strong);gap:12px;}
.btn-round{border-radius:999px;}

/* ---------- 标签 / 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;line-height:1;}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-inline{font-family:var(--mono);font-size:12.5px;color:var(--muted);background:transparent;padding:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background-color:#FFFFFF;
  background-color:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,height .2s ease;
}
@supports ((-webkit-backdrop-filter:blur(6px)) or (backdrop-filter:blur(6px))){
  .site-header{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);}
}
.site-header.is-scrolled{box-shadow:0 5px 18px -14px rgba(11,27,31,.4);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:76px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:62px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:.01em;}
.logo:hover{color:var(--ink);}
.logo-glyph{display:inline-flex;width:28px;height:28px;color:var(--primary);}
.logo-glyph svg{width:100%;height:100%;}
.logo-text em{font-style:normal;color:var(--primary);}
.nav-desktop{display:flex;align-items:center;gap:34px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink);padding:6px 0;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.nav-link:hover{color:var(--primary-strong);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;display:none;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  transition:border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{border-color:rgba(14,127,142,.4);}
.menu-toggle span{position:relative;display:block;width:18px;height:1.5px;background:var(--ink);}
.menu-toggle span::before{content:"";position:absolute;left:0;top:-6px;width:18px;height:1.5px;background:var(--ink);}
.mobile-panel{
  position:fixed;inset:0;z-index:120;background:#F6F9FA;
  padding:22px 24px 32px;display:none;flex-direction:column;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel .panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.panel-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;position:relative;}
.panel-close::before,.panel-close::after{content:"";position:absolute;left:50%;top:50%;width:16px;height:1.5px;background:var(--ink);}
.panel-close::before{transform:translate(-50%,-50%) rotate(45deg);}
.panel-close::after{transform:translate(-50%,-50%) rotate(-45deg);}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{font-size:20px;font-weight:600;color:var(--ink);padding:18px 0;border-bottom:1px solid var(--line);}
.mobile-nav a.active{color:var(--primary);}
.panel-foot{margin-top:auto;padding-top:28px;display:flex;flex-direction:column;gap:14px;}
.panel-foot .panel-note{font-size:14px;color:var(--muted);}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13px;color:var(--muted);padding:22px 0 0;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{margin:0 8px;opacity:.6;}

/* ---------- 页面头部 ---------- */
.page-hero{padding:18px 0 24px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;padding:36px 40px;border-radius:20px;border:1px solid var(--line);background:
  linear-gradient(96deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 52%,rgba(227,242,244,.72) 100%),
  url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--shadow-1);
}
.page-hero h1{font-size:clamp(28px,4.4vw,44px);line-height:1.25;font-weight:800;letter-spacing:.01em;}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.9;color:#2A4348;max-width:640px;}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:13px;color:var(--muted);}
.hero-meta .dot-sep{width:4px;height:4px;border-radius:50%;background:var(--primary);opacity:.55;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-figure{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--primary-soft);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease;}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:13px;color:#fff;
  background:linear-gradient(180deg,rgba(11,27,31,0) 0%,rgba(11,27,31,.72) 100%);}
.hero-rule{display:flex;gap:6px;margin-top:26px;}
.hero-rule i{display:block;height:2px;background:var(--primary);opacity:.35;}
.hero-rule i:nth-child(1){width:52px;opacity:.9;}
.hero-rule i:nth-child(2){width:22px;}
.hero-rule i:nth-child(3){width:10px;}

/* ---------- 时间轴 ---------- */
.timeline-wrap{position:relative;}
.timeline{position:relative;max-width:1040px;margin:0 auto;padding:12px 0 4px;}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--line);transform:translateX(-50%);}
.tl-item{position:relative;padding:14px 0;}
.tl-dot{position:absolute;left:50%;top:44px;width:8px;height:8px;border-radius:50%;background:var(--primary);transform:translateX(-50%);box-shadow:0 0 0 6px var(--bg);z-index:2;}
.tl-card{
  width:calc(50% - 46px);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.tl-item:nth-child(odd) .tl-card{margin-right:auto;}
.tl-item:nth-child(even) .tl-card{margin-left:auto;}
.tl-card:hover{box-shadow:var(--shadow-2);border-color:rgba(14,127,142,.32);transform:translateY(-2px);}
.tl-card h3{font-size:19px;line-height:1.5;font-weight:600;margin:12px 0 10px;}
.tl-card p{font-size:15.5px;color:#395156;line-height:1.85;}
.tl-points{margin-top:14px;border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:8px;}
.tl-points li{position:relative;padding-left:16px;font-size:14px;color:var(--muted);line-height:1.75;}
.tl-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.55;}
.tl-stage{display:flex;align-items:center;gap:10px;}
.tl-stage .num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.04em;}

/* ---------- 数据参考带 ---------- */
.data-band{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:34px 36px;box-shadow:var(--shadow-1);}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.data-cell{padding:4px 26px;border-left:1px solid var(--line);}
.data-cell:first-child{border-left:0;padding-left:4px;}
.data-cell .k{font-size:13px;color:var(--muted);}
.data-cell .v{font-family:var(--mono);font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--ink);letter-spacing:.02em;line-height:1.3;margin-top:6px;}
.data-cell .v small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px;letter-spacing:0;}
.data-note{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);}

/* ---------- 适用场景编号清单 ---------- */
.scene-list{border-top:1px solid var(--line);}
.scene-row{display:grid;grid-template-columns:88px 1fr auto;align-items:center;gap:24px;padding:26px 6px;border-bottom:1px solid var(--line);transition:background-color .2s ease,padding .2s ease;}
.scene-row .idx{font-family:var(--mono);font-size:26px;font-weight:700;color:transparent;-webkit-text-stroke:1px var(--accent);letter-spacing:.04em;}
.scene-row h3{font-size:17.5px;font-weight:600;line-height:1.5;}
.scene-row p{font-size:14.5px;color:var(--muted);margin-top:6px;line-height:1.8;max-width:760px;}
.scene-row .arrow{color:var(--primary);font-size:18px;opacity:0;transform:translateX(-6px);transition:opacity .2s ease,transform .2s ease;}
.scene-row:hover{background:rgba(227,242,244,.45);}
.scene-row:hover .arrow{opacity:1;transform:translateX(0);}

/* ---------- 对照表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-1);}
table.cheat{width:100%;border-collapse:collapse;min-width:760px;font-size:15px;}
table.cheat th{background:var(--primary-soft);color:var(--ink);font-weight:600;text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);white-space:nowrap;}
table.cheat td{padding:15px 20px;border-bottom:1px solid var(--line);color:#395156;vertical-align:top;line-height:1.8;}
table.cheat tbody tr:nth-child(even){background:#FBFDFE;}
table.cheat tbody tr:hover{background:#F2F9FA;}
table.cheat tbody tr:last-child td{border-bottom:0;}
table.cheat td .badge{vertical-align:middle;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-q .sign{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .2s ease;}
.faq-q .sign::before,.faq-q .sign::after{content:"";position:absolute;background:var(--primary);}
.faq-q .sign::before{left:0;top:7px;width:16px;height:1.5px;}
.faq-q .sign::after{left:7px;top:0;width:1.5px;height:16px;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a-inner{background:var(--bg);border-left:2px solid var(--primary);padding:16px 20px 20px;margin:0 0 18px;font-size:15.5px;color:#395156;line-height:1.9;border-radius:0 10px 10px 0;}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:var(--primary-soft);border:1px solid rgba(14,127,142,.16);border-radius:var(--radius);
  min-height:108px;padding:26px 34px;display:flex;align-items:center;justify-content:space-between;gap:26px;
}
.cta-strip h2{font-size:clamp(19px,2.2vw,24px);font-weight:700;line-height:1.45;}
.cta-strip p{font-size:14.5px;color:#395156;margin-top:8px;max-width:680px;}
.cta-strip .cta-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-2);color:#C9DADB;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.14);margin-top:12px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;padding-bottom:44px;}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;}
.footer-brand:hover{color:#fff;}
.footer-brand .logo-glyph{color:#5FC8D4;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#9DB7B9;max-width:330px;}
.footer-kw{display:inline-flex;margin-top:16px;padding:4px 10px;border:1px solid rgba(255,255,255,.18);border-radius:6px;font-size:13px;color:#8FD3DA;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#AFC6C8;font-size:14.5px;}
.footer-links a:hover{color:#8FD3DA;}
.footer-info{display:flex;flex-direction:column;gap:11px;font-size:14.5px;color:#AFC6C8;}
.footer-info b{color:#E4EEEF;font-weight:600;}
.footer-bottom{display:flex;align-items:center;gap:14px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;font-size:13.5px;color:#8FA9AB;flex-wrap:wrap;}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:#4F757A;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-desktop{display:none;}
  .icon-btn{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:28px 26px;}
  .hero-figure{order:-1;}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:24px 0;}
  .data-cell{padding:4px 20px;}
  .data-cell:nth-child(3){border-left:0;padding-left:4px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 20px;}
  .footer-col:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .header-inner{height:66px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .header-actions .btn-sm{display:none;}
  .logo{font-size:17px;}
  .page-hero{padding:6px 0 12px;}
  .hero-grid{padding:22px 20px;border-radius:16px;}
  .hero-actions .btn{width:100%;}
  .timeline::before{left:8px;transform:none;}
  .tl-dot{left:8px;top:38px;transform:translateX(-50%);box-shadow:0 0 0 5px var(--bg);}
  .tl-card{width:auto;margin-left:30px !important;margin-right:0 !important;padding:20px;}
  .tl-item{padding:10px 0;}
  .data-band{padding:26px 20px;}
  .data-grid{grid-template-columns:1fr;gap:18px;}
  .data-cell{border-left:0;padding:0 0 18px;border-bottom:1px solid var(--line);}
  .data-cell:last-child{border-bottom:0;padding-bottom:0;}
  .scene-row{grid-template-columns:1fr auto;gap:14px;padding:20px 4px;}
  .scene-row .idx{grid-column:1 / -1;font-size:20px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:22px 20px;min-height:0;}
  .cta-strip .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-col{padding:0 0 22px;border-left:0;border-bottom:1px solid rgba(255,255,255,.1);}
  .footer-col:last-child{border-bottom:0;padding-bottom:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-bottom .dot{display:none;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .hero-lead{font-size:15.5px;}
  .btn{padding:0 18px;}
  .btn-lg{width:100%;}
  .faq-q{font-size:16px;padding:18px 2px;}
}

/* roulang page: category3 */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --radius:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --container:1240px;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-strong)}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:.015em;font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(14,127,142,.18);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:rgba(14,127,142,.45);color:var(--primary);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:0;padding:0;height:auto;border-bottom:1px solid var(--line);border-radius:0}
.btn-ghost:hover{color:var(--primary);border-bottom-color:var(--primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:10px}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 8px 20px -18px rgba(11,27,31,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .2s ease}
.site-header.is-stuck .header-inner{height:62px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-glyph{width:28px;height:28px;color:var(--primary);flex:0 0 auto}
.logo-glyph svg{width:100%;height:100%;display:block}
.logo-text{font-size:19px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px}
.nav-desktop{display:flex;align-items:center;gap:34px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;letter-spacing:.02em;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);position:relative;cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{border-color:rgba(14,127,142,.45)}
.menu-toggle{display:none}
.menu-toggle span,.menu-toggle span::after{
  content:"";position:absolute;left:11px;right:11px;height:1.5px;
  background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.menu-toggle span{top:20px}
.menu-toggle span::after{top:-7px;left:0;right:0}
.menu-toggle[aria-expanded="true"] span{transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{transform:rotate(-90deg) translateY(-7px);top:0}

/* 移动面板 */
.mobile-panel{
  position:fixed;inset:0;z-index:70;background:rgba(246,249,250,.99);
  padding:96px 24px 32px;display:none;flex-direction:column;
}
.mobile-panel.open{display:flex}
.mobile-panel a.m-link{
  font-size:20px;font-weight:600;color:var(--ink);
  padding:18px 4px;border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link.active{color:var(--primary)}
.mobile-panel .m-foot{margin-top:auto;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.mobile-panel .m-foot span{font-size:14px;color:var(--muted)}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:var(--muted);letter-spacing:.02em;margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}

/* ============ 页面头部 ============ */
.page-hero{padding:72px 0 84px;position:relative;overflow:hidden;background:var(--surface)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(11,27,31,.05) 0 1px,transparent 1px 140px);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero-copy h1{
  font-size:clamp(28px,4.4vw,46px);
  font-weight:800;line-height:1.25;letter-spacing:.015em;margin-bottom:20px;
}
.hero-lede{font-size:17px;line-height:1.95;color:var(--muted);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;font-size:13.5px;color:var(--muted)}
.hero-meta li{position:relative;padding-left:14px}
.hero-meta li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);
  box-shadow:var(--shadow-2);
}
.hero-visual::after{
  content:"";position:absolute;right:-14px;bottom:-14px;width:58%;height:58%;
  border-right:1px solid rgba(14,127,142,.4);border-bottom:1px solid rgba(14,127,142,.4);
  border-radius:0 0 var(--radius) 0;pointer-events:none;
}

/* ============ 通用板块头 ============ */
.section{padding:96px 0}
.section-alt{background:var(--surface)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:34px;
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  padding:4px 10px;border-radius:6px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700}
.section-note{font-size:14.5px;color:var(--muted);max-width:420px;line-height:1.8}

/* ============ 条目图墙 ============ */
.wall-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.wall-item{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:4/3;background:var(--ink-2);box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.wall-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .45s ease,filter .3s ease;
}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,27,31,0) 38%,rgba(11,27,31,.78) 100%);
  transition:background .3s ease;
}
.wall-body{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  display:flex;flex-direction:column;gap:6px;
}
.wall-tag{
  align-self:flex-start;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;
  color:#fff;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  padding:2px 9px;border-radius:6px;
}
.wall-title{color:#fff;font-size:17.5px;font-weight:700;line-height:1.5;letter-spacing:.02em}
.wall-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.wall-item:hover img{transform:scale(1.04)}
.wall-item:hover::after{background:linear-gradient(180deg,rgba(11,27,31,.1) 20%,rgba(11,27,31,.86) 100%)}
.wall-item:focus-visible{outline:3px solid rgba(14,127,142,.35);outline-offset:3px}

/* 分页 */
.pager{display:flex;align-items:center;gap:10px;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:34px;padding:0 10px;border-radius:8px;
  font-size:14px;font-family:var(--mono);color:var(--muted);
  border:1px solid var(--line);background:var(--surface);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.pager a:hover{border-color:var(--primary);color:var(--primary)}
.pager .is-current{
  background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700;
}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);overflow:hidden;
}
.metric{padding:28px 26px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric-num{
  display:block;font-family:var(--mono);font-size:32px;font-weight:700;
  color:var(--ink);line-height:1.2;letter-spacing:.01em;
}
.metric-num em{font-style:normal;color:var(--accent);font-size:18px;margin-left:3px}
.metric-label{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.metric-desc{display:block;margin-top:4px;font-size:13px;color:var(--muted);opacity:.85}

/* ============ 核对清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.check-col{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.check-col:hover{border-color:rgba(14,127,142,.3);box-shadow:var(--shadow-2)}
.check-col h3{
  font-size:19px;font-weight:600;padding-bottom:14px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.check-col h3::before{
  content:"";width:4px;height:18px;border-radius:2px;background:var(--primary);
}
.check-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);
  font-size:15.5px;color:var(--ink);line-height:1.8;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list .num{
  font-family:var(--mono);font-size:13.5px;font-weight:700;color:var(--accent);
  flex:0 0 auto;padding-top:3px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 48px 22px 0;font-size:17px;font-weight:600;line-height:1.7;
  color:var(--ink);transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:14px;top:50%;width:11px;height:1.5px;
  background:var(--muted);transform:translateY(-50%);transition:transform .2s ease,background-color .2s ease;
}
.faq-item summary::before{
  content:"";position:absolute;right:19px;top:50%;width:1.5px;height:11px;
  background:var(--muted);transform:translateY(-50%);transition:transform .2s ease,opacity .2s ease,background-color .2s ease;
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::before{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq-item[open] summary::after{background:var(--primary)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{
  background:var(--bg);border-left:2px solid var(--primary);
  padding:18px 22px;margin-bottom:20px;border-radius:0 10px 10px 0;
  font-size:15.5px;color:var(--muted);line-height:1.9;
}

/* ============ 窄幅 CTA ============ */
.cta-wrap{padding:0 0 96px}
.cta-band{
  background:var(--primary-soft);
  border:1px solid rgba(14,127,142,.18);
  border-radius:var(--radius);
  min-height:110px;padding:28px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band p{font-size:18px;font-weight:600;color:var(--ink);line-height:1.6;max-width:720px}
.cta-band .btn-text{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:var(--surface);color:var(--primary);font-weight:600;font-size:15.5px;
  border:1px solid rgba(14,127,142,.28);
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cta-band .btn-text:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.cta-band .btn-text::after{content:"→";transition:transform .2s ease}
.cta-band .btn-text:hover::after{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-2);color:#C8D6D9;padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0;
}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px}
.footer-brand .logo-glyph{color:#59C7D4;width:26px;height:26px}
.footer-brand .logo-text{font-size:18px;font-weight:800;color:#fff}
.footer-brand .logo-text em{font-style:normal;color:#59C7D4}
.footer-desc{font-size:14px;line-height:1.85;color:#9DB2B6;max-width:320px}
.footer-kw{
  display:inline-block;margin-top:14px;font-size:13px;color:#8FE0EA;
  border:1px solid rgba(143,224,234,.3);border-radius:6px;padding:3px 10px;
}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.footer-links,.footer-info{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:#9DB2B6;transition:color .2s ease}
.footer-links a:hover{color:#59C7D4}
.footer-info span{font-size:14.5px;color:#9DB2B6;line-height:1.7}
.footer-info b{color:#D7E4E6;font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#8FA5A9}
.footer-bottom .dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.3)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-desktop{gap:24px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-copy{order:1}
  .page-hero{padding:52px 0 64px}
  .section{padding:78px 0}
  .wall-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(3){border-left:0}
  .metric{border-top:1px solid var(--line)}
  .metric:nth-child(-n+2){border-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0 24px}
  .footer-col:nth-child(odd){border-left:0;padding-left:0}
  .footer-col:nth-child(even){padding-right:0}
}
@media (max-width:768px){
  body{font-size:16px}
  .nav-desktop{display:none}
  .menu-toggle{display:block}
  .header-actions .btn-sm{display:none}
  .header-inner{height:64px}
  .site-header.is-stuck .header-inner{height:58px}
  .page-hero{padding:40px 0 52px}
  .hero-lede{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .section-note{max-width:none}
  .wall-grid{gap:16px}
  .check-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px}
  .cta-band .btn-text{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col{border-left:0;border-top:1px solid rgba(255,255,255,.1);padding:26px 0 0}
  .footer-col:first-child{border-top:0;padding-top:0}
  .site-footer{padding:48px 0 24px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .wall-grid{grid-template-columns:1fr}
  .hero-visual::after{display:none}
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0!important;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0}
  .wall-title{font-size:16.5px}
  .hero-meta{flex-direction:column;gap:8px}
}

/* roulang page: category4 */
:root{
  --ink:#0B1B1F;
  --ink-2:#123036;
  --primary:#0E7F8E;
  --primary-strong:#0A6572;
  --primary-soft:#E3F2F4;
  --accent:#F05A28;
  --accent-soft:#FDE9E0;
  --line:#DCE6E8;
  --bg:#F6F9FA;
  --surface:#FFFFFF;
  --muted:#5A6E73;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(11,27,31,.06);
  --shadow-2:0 14px 30px -16px rgba(11,27,31,.22);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
h1{font-size:clamp(28px,4.4vw,46px);line-height:1.25;font-weight:800;letter-spacing:.015em;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:.015em;}
h3{font-size:19px;line-height:1.5;font-weight:600;letter-spacing:.01em;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
p{font-size:16.5px;line-height:1.9;}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-strong);}
button{font:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,127,142,.18);border-radius:8px;}

.container{max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;background:none;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-line{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-line:hover{border-color:rgba(14,127,142,.45);color:var(--primary);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.text-link{
  font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(14,127,142,.35);padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--primary);}
.text-link .arrow{display:inline-block;transition:transform .2s ease;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#F6F9FA;
  background:rgba(246,249,250,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px -14px rgba(11,27,31,.45);}
.header-inner{display:flex;align-items:center;height:78px;gap:28px;transition:height .2s ease;}
.site-header.is-stuck .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:19px;letter-spacing:.02em;}
.logo:hover{color:var(--ink);}
.logo-glyph{width:28px;height:28px;color:var(--primary);display:inline-flex;flex:none;}
.logo-glyph svg{width:100%;height:100%;}
.logo-text em{font-style:normal;color:var(--primary);}
.nav-desktop{display:flex;align-items:center;gap:34px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;letter-spacing:.01em;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);transition:width .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:6px;}
.menu-toggle{
  display:none;position:relative;width:40px;height:40px;border:0;background:transparent;cursor:pointer;
}
.menu-toggle span{position:absolute;left:9px;top:17px;width:22px;height:1.5px;background:var(--ink);border-radius:2px;}
.menu-toggle span::after{
  content:"";position:absolute;left:0;top:7px;width:22px;height:1.5px;background:var(--ink);border-radius:2px;
}
.menu-toggle:hover span,.menu-toggle:hover span::after{background:var(--primary);}

/* ---------- 移动端面板 ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:130;background:var(--bg);
  padding:22px 20px 28px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
body.panel-open .mobile-panel{opacity:1;visibility:visible;transform:none;}
body.panel-open{overflow:hidden;}
.mobile-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.panel-close{width:40px;height:40px;border:0;background:transparent;position:relative;cursor:pointer;}
.panel-close::before,.panel-close::after{
  content:"";position:absolute;left:9px;top:19px;width:22px;height:1.5px;background:var(--ink);border-radius:2px;
}
.panel-close::before{transform:rotate(45deg);}
.panel-close::after{transform:rotate(-45deg);}
.mobile-nav{display:flex;flex-direction:column;margin-top:8px;}
.mobile-nav a{
  font-size:20px;font-weight:600;color:var(--ink);padding:18px 2px;
  border-bottom:1px solid var(--line);letter-spacing:.015em;
}
.mobile-nav a:hover,.mobile-nav a.active{color:var(--primary);}
.mobile-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:14px;}
.mobile-foot .tip{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- 页面头部 ---------- */
.page-head{padding:34px 0 6px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.6;}
.head-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:center;margin-top:26px;}
.head-lead{margin-top:18px;font-size:17px;line-height:1.9;color:#3A5054;max-width:780px;}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
}
.tag.warm{background:var(--accent-soft);color:var(--accent);}
.head-deco{color:rgba(14,127,142,.28);}
.head-deco svg{width:100%;height:auto;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.08em;color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1.5px;background:var(--primary);display:inline-block;}

/* ---------- 问答区 ---------- */
.faq-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:56px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.side-figure{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--surface);}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.side-stats{margin-top:22px;border-top:1px solid var(--line);}
.side-stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);}
.side-stat .k{font-size:14px;color:var(--muted);}
.side-stat .v{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--ink);}
.side-note{margin-top:20px;font-size:13.5px;line-height:1.8;color:var(--muted);}

.faq-group{margin-bottom:52px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:baseline;gap:14px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.group-head h2{font-size:24px;}
.group-head .count{font-family:var(--mono);font-size:13.5px;color:var(--muted);}

.faq-list{border-bottom:1px solid var(--line);}
.faq-row{border-top:1px solid var(--line);}
.faq-row:first-child{border-top:0;}
.faq-row details{width:100%;}
.faq-row summary{
  display:grid;grid-template-columns:56px minmax(0,1fr) 24px;gap:18px;align-items:start;
  padding:22px 0;cursor:pointer;list-style:none;transition:background-color .2s ease;
}
.faq-row summary::-webkit-details-marker{display:none;}
.faq-row summary:hover{background:rgba(227,242,244,.42);}
.q-no{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent);padding-top:4px;letter-spacing:.04em;}
.q-title{font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.55;}
.q-brief{margin-top:7px;font-size:14.5px;color:var(--muted);line-height:1.75;}
.q-sign{position:relative;width:20px;height:20px;margin-top:5px;}
.q-sign::before,.q-sign::after{content:"";position:absolute;background:var(--primary);transition:transform .2s ease,opacity .2s ease;}
.q-sign::before{left:50%;top:2px;width:1.5px;height:16px;transform:translateX(-50%);}
.q-sign::after{top:50%;left:2px;height:1.5px;width:16px;transform:translateY(-50%);}
details[open] .q-sign::before{transform:translateX(-50%) rotate(90deg);opacity:0;}
.q-body{padding:0 24px 26px 74px;color:#33484D;font-size:15.5px;line-height:1.9;}
.q-body p+p{margin-top:12px;}
.q-body ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.q-body li{padding-left:16px;position:relative;font-size:15px;color:#3A5054;}
.q-body li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.75;}
.q-body strong{color:var(--ink);font-weight:600;}

/* ---------- 流程 ---------- */
.flow-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.flow-step{padding:0 26px;border-left:1px solid var(--line);}
.flow-step:first-child{border-left:0;padding-left:0;}
.flow-step:last-child{padding-right:0;}
.flow-no{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--accent);letter-spacing:.04em;}
.flow-step h3{margin-top:16px;}
.flow-step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);}
.rule-table{width:100%;border-collapse:collapse;min-width:720px;}
.rule-table th,.rule-table td{
  padding:16px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:top;
}
.rule-table th{
  background:var(--primary-soft);color:var(--ink);font-weight:700;font-size:14.5px;
  letter-spacing:.02em;white-space:nowrap;
}
.rule-table tbody tr:nth-child(even){background:#FBFDFE;}
.rule-table tbody tr:last-child td{border-bottom:0;}
.rule-table td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}
.rule-table td{color:#3A5054;line-height:1.75;}

/* ---------- 检查清单 ---------- */
.check-section{background:var(--ink-2);color:#E8F1F2;}
.check-section .eyebrow{color:#7FD3DE;}
.check-section .eyebrow::before{background:#7FD3DE;}
.check-section h2{color:#fff;}
.check-section .section-head p{color:rgba(232,241,242,.72);}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;}
.check-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding:20px 0;border-top:1px solid rgba(232,241,242,.16);}
.check-item .n{font-family:var(--mono);font-size:15px;font-weight:700;color:#7FD3DE;padding-top:3px;}
.check-item h3{font-size:16.5px;color:#fff;}
.check-item p{margin-top:8px;font-size:14.5px;line-height:1.8;color:rgba(232,241,242,.72);}

/* ---------- 窄幅 CTA ---------- */
.cta-band{
  background:var(--primary-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:30px 0;min-height:108px;}
.cta-inner h2{font-size:22px;}
.cta-inner p{margin-top:8px;font-size:14.5px;color:var(--muted);}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;padding:44px 0 8px;}
.pager-label{font-size:13.5px;color:var(--muted);margin-right:6px;letter-spacing:.06em;}
.pager-item{
  min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:600;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;background:transparent;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.pager-item:hover{color:var(--primary);border-color:rgba(14,127,142,.45);}
.pager-item.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;background:var(--ink-2);color:#D7E5E7;
  border-top:1px solid rgba(255,255,255,.08);padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 30px;border-left:1px solid rgba(255,255,255,.09);}
.footer-col:first-child{padding-left:0;border-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;}
.footer-brand .logo-glyph{color:#7FD3DE;}
.footer-brand .logo-text em{font-style:normal;color:#7FD3DE;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(215,229,231,.72);}
.footer-kw{
  display:inline-block;margin-top:16px;font-size:13px;color:#7FD3DE;
  border:1px solid rgba(127,211,222,.4);border-radius:6px;padding:3px 10px;
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:rgba(215,229,231,.78);font-size:14.5px;}
.footer-links a:hover{color:#7FD3DE;}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:rgba(215,229,231,.78);}
.footer-info b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(215,229,231,.6);line-height:1.7;}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:rgba(215,229,231,.4);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-desktop{display:none;}
  .menu-toggle{display:block;}
  .header-inner{height:68px;}
  .header-actions .btn{display:none;}
  .head-grid{grid-template-columns:1fr;gap:28px;}
  .head-deco{max-width:220px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-side{position:static;display:grid;grid-template-columns:200px minmax(0,1fr);gap:24px;align-items:start;}
  .side-stats{margin-top:0;}
  .side-note{margin-top:0;grid-column:2;}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:34px 0;}
  .flow-step:nth-child(3){border-left:0;padding-left:0;}
  .check-list{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px 0;}
  .footer-col{padding:0 22px;}
  .footer-col:nth-child(odd){padding-left:0;border-left:0;}
  .footer-col:nth-child(even){border-left:1px solid rgba(255,255,255,.09);}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-head{padding:24px 0 0;}
  .head-lead{font-size:16px;}
  .head-deco{display:none;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px;}
  .faq-side{grid-template-columns:1fr;}
  .side-note{grid-column:1;}
  .side-figure img{aspect-ratio:16/9;}
  .faq-row summary{grid-template-columns:38px minmax(0,1fr) 20px;gap:12px;padding:18px 0;}
  .q-title{font-size:16.5px;}
  .q-body{padding:0 0 22px 50px;font-size:15px;}
  .flow-grid{grid-template-columns:1fr;gap:0;}
  .flow-step{border-left:0;padding:22px 0;border-top:1px solid var(--line);}
  .flow-step:first-child{border-top:0;padding-top:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:16px;padding:26px 0;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{padding:24px 0;border-left:0;border-top:1px solid rgba(255,255,255,.09);}
  .footer-col:first-child{padding-top:0;border-top:0;}
  .site-footer{padding:44px 0 22px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .group-head h2{font-size:20px;}
  .rule-table th,.rule-table td{padding:13px 15px;font-size:14px;}
  .pager{flex-wrap:wrap;gap:8px;}
  .btn{height:44px;padding:0 20px;width:100%;}
  .btn.btn-sm{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}