/* roulang page: index */
:root{
  --bg-0:#05070E;
  --bg-1:#0A101E;
  --surface:rgba(255,255,255,.035);
  --surface-2:rgba(255,255,255,.055);
  --line:rgba(140,200,255,.14);
  --line-strong:rgba(140,200,255,.26);
  --primary:#12E6C8;
  --primary-deep:#0B8F7E;
  --secondary:#7B61FF;
  --accent:#FFC46B;
  --text-1:#EAF2FF;
  --text-2:#A9B7CF;
  --text-3:#6B7A93;
  --danger-line:rgba(255,90,120,.18);
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-card:0 16px 48px rgba(0,0,0,.45);
  --glow:0 10px 34px rgba(18,230,200,.30);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(140,200,255,.030) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,200,255,.030) 1px, transparent 1px);
  background-size:48px 48px;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{color:var(--text-1);letter-spacing:normal;line-height:1.25}
h1{font-weight:800;font-size:clamp(34px,5vw,58px);line-height:1.15}
h2{font-weight:700;font-size:clamp(26px,3.4vw,40px)}
h3{font-weight:700;font-size:20px}
p{font-size:15.5px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:1024px){.container{padding:0 32px}}

.section{padding:56px 0;position:relative;z-index:1}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1024px){.section{padding:104px 0}}
.section--alt{background:var(--bg-1)}
.divider-line{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(18,230,200,.45),transparent)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;transition:height .3s ease, background .3s ease, border-color .3s ease;
  background:linear-gradient(180deg, rgba(5,7,14,.92), rgba(5,7,14,.35) 70%, transparent);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:60px;
  background:rgba(5,7,14,.84);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--text-1);white-space:nowrap}
.brand .j9{color:var(--primary);text-shadow:0 0 14px rgba(18,230,200,.55)}
.brand-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary);flex:none}
.nav-links{display:none;align-items:center;gap:32px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;font-size:15px;color:var(--text-2);transition:color .2s ease;padding:4px 0}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:1px;
  background:var(--primary);transform:translateX(-50%);transition:width .22s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{width:100%}
.nav-link.active::before{
  content:"";position:absolute;left:50%;bottom:-9px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px var(--primary);transform:translateX(-50%);
}
.nav-actions{display:none;align-items:center;gap:12px}
@media(min-width:1024px){.nav-actions{display:flex}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  padding:12px 24px;cursor:pointer;border:none;transition:all .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#12E6C8,#0B8F7E);
  color:#04140F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 46px rgba(18,230,200,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:transparent;color:var(--text-1);border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(18,230,200,.08);color:var(--primary)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-sm{padding:8px 18px;font-size:14px;border-radius:999px}
.btn-lg{padding:15px 32px;font-size:16px}

.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:6px;
  width:42px;height:42px;background:transparent;border:1px solid var(--line);
  border-radius:10px;cursor:pointer;padding:0 10px;
}
.menu-toggle span{display:block;height:1.5px;background:var(--text-1);border-radius:2px;transition:.25s}
.menu-toggle:hover{border-color:var(--primary)}
.menu-toggle:hover span{background:var(--primary)}
@media(min-width:1024px){.menu-toggle{display:none}}

.mobile-panel{
  position:fixed;inset:0;z-index:79;background:rgba(5,7,14,.98);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:100px 28px 40px;display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .28s ease, transform .28s ease, visibility .28s;
}
.mobile-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-panel a{
  font-size:20px;font-weight:600;color:var(--text-1);padding:16px 0;
  border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px);
}
.mobile-panel.open a{animation:navIn .4s ease forwards}
.mobile-panel.open a:nth-child(1){animation-delay:.05s}
.mobile-panel.open a:nth-child(2){animation-delay:.1s}
.mobile-panel.open a:nth-child(3){animation-delay:.15s}
.mobile-panel.open a:nth-child(4){animation-delay:.2s}
.mobile-panel.open a:nth-child(5){animation-delay:.25s}
.mobile-panel .mobile-cta{margin-top:26px;border-bottom:none}
@keyframes navIn{to{opacity:1;transform:translateY(0)}}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:130px 0 64px;overflow:hidden;
  background-image:linear-gradient(180deg, rgba(5,7,14,.82) 0%, rgba(5,7,14,.94) 62%, var(--bg-0) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
@media(min-width:1024px){.hero{padding:168px 0 88px}}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 55% at 50% 0%, rgba(18,230,200,.12), transparent 70%);
}
.hero-grid{position:relative;z-index:2;display:grid;gap:44px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary);border:1px solid rgba(18,230,200,.35);background:rgba(18,230,200,.07);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{margin-bottom:20px}
.hero h1 .hl{
  background:linear-gradient(135deg,#12E6C8,#7B61FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px;line-height:1.85}
@media(min-width:768px){.hero-sub{font-size:18px}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/9;
}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.72}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg, rgba(18,230,200,.14), rgba(5,7,14,.65));
}
.hero-media-cap{
  position:absolute;left:20px;bottom:18px;right:20px;z-index:2;
  font-size:14px;color:var(--text-1);font-weight:600;
}

.data-bar{
  position:relative;z-index:2;margin-top:46px;
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
@media(min-width:768px){.data-bar{grid-template-columns:repeat(4,1fr)}}
.data-bar .cell{
  background:rgba(255,255,255,.04);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:20px 18px;text-align:center;
}
.data-bar .num{
  font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;
  font-size:24px;font-weight:700;color:var(--accent);letter-spacing:-.5px;
}
.data-bar .lbl{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 通用板块标题 ---------- */
.sec-head{margin-bottom:34px}
.sec-head.center{text-align:center;max-width:720px;margin-left:auto;margin-right:auto}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:#B7A9FF;
  border:1px solid rgba(123,97,255,.42);background:rgba(123,97,255,.10);
  padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
.sec-head h2{margin-bottom:12px}
.sec-lead{font-size:15.5px;color:var(--text-2);max-width:660px}
.sec-head.center .sec-lead{margin:0 auto}

/* ---------- 信任条 ---------- */
.trust-bar{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:20px 0;background:rgba(255,255,255,.015);
}
.trust-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 30px}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);
  filter:grayscale(1);opacity:.78;transition:.3s ease;
}
.trust-item i{color:var(--primary);font-size:14px}
.trust-item:hover{filter:grayscale(0);opacity:1;color:var(--text-1)}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;gap:20px}
@media(min-width:768px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.pain-grid{grid-template-columns:repeat(4,1fr)}}
.pain-card{
  background:var(--surface);border:1px solid var(--danger-line);border-radius:var(--r-card);
  padding:26px 22px;transition:.3s ease;height:100%;
}
.pain-card:hover{transform:translateY(-4px);border-color:rgba(255,90,120,.38);box-shadow:0 18px 44px rgba(0,0,0,.45)}
.pain-num{
  font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;
  font-size:13px;font-weight:700;color:var(--secondary);letter-spacing:1px;margin-bottom:14px;display:block;
}
.pain-card h3{font-size:17px;margin-bottom:10px}
.pain-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 方案 ---------- */
.sol-list{display:flex;flex-direction:column;gap:52px}
@media(min-width:1024px){.sol-list{gap:72px}}
.sol-row{display:grid;gap:26px;align-items:center}
@media(min-width:1024px){
  .sol-row{grid-template-columns:1fr 1fr;gap:56px}
  .sol-row.reverse .sol-media{order:2}
}
.sol-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);aspect-ratio:4/3;
}
.sol-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.sol-row:hover .sol-media img{transform:scale(1.03)}
.sol-body h3{font-size:22px;margin-bottom:14px}
.sol-body>p{font-size:15.5px;color:var(--text-2);margin-bottom:20px}
.sol-points{list-style:none;display:flex;flex-direction:column;gap:12px}
.sol-points li{display:flex;gap:10px;font-size:15px;color:var(--text-2);align-items:flex-start}
.sol-points i{color:var(--primary);margin-top:6px;font-size:13px;flex:none}

/* ---------- 成果 ---------- */
.stat-grid{display:grid;gap:18px;margin-bottom:34px}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-card{
  background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 22px;text-align:center;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:.3s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.stat-num{
  font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;
  font-size:32px;font-weight:700;color:var(--accent);line-height:1.2;
}
.stat-lbl{font-size:14px;color:var(--text-2);margin-top:8px}
.case-grid{display:grid;gap:20px}
@media(min-width:1024px){.case-grid{grid-template-columns:1.25fr 1fr}}
.case-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  min-height:230px;display:flex;align-items:flex-end;
}
.case-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:transform .55s ease}
.case-card:hover img{transform:scale(1.04)}
.case-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,7,14,.15), rgba(5,7,14,.92));
}
.case-body{position:relative;z-index:2;padding:26px}
.case-body h3{font-size:19px;margin-bottom:8px}
.case-body p{font-size:14.5px;color:var(--text-2)}

/* ---------- 资讯 / CMS ---------- */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.news-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:820px){.news-grid{grid-template-columns:repeat(2,1fr)}}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;transition:.3s ease;
}
.news-card:hover{border-color:var(--primary);box-shadow:0 18px 48px rgba(0,0,0,.5)}
.news-thumb{display:block;overflow:hidden;aspect-ratio:4/3}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:18px;line-height:1.5}
.news-title a{transition:color .2s ease}
.news-card:hover .news-title a{color:var(--primary)}
.news-desc{
  font-size:14.5px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.news-meta a{color:var(--primary);font-weight:600;font-size:13px}
.news-meta a:hover{text-decoration:underline}
@media(min-width:820px){
  .news-grid>.news-card:first-child{grid-column:1 / -1;flex-direction:row}
  .news-grid>.news-card:first-child .news-thumb{width:44%;flex:none;aspect-ratio:auto;min-height:260px}
  .news-grid>.news-card:first-child .news-body{padding:30px}
  .news-grid>.news-card:first-child .news-title{font-size:22px}
}
@media(max-width:819px){
  .news-grid>.news-card:first-child .news-thumb{aspect-ratio:16/9}
}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
  padding:3px 11px;border-radius:999px;line-height:1.6;width:fit-content;
}
.tag-violet{color:#B7A9FF;border:1px solid rgba(123,97,255,.42);background:rgba(123,97,255,.10)}
.tag-neon{color:var(--primary);border:1px solid rgba(18,230,200,.35);background:rgba(18,230,200,.08)}

.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-2);font-size:16px;font-weight:600}
.empty-state span{display:block;margin-top:8px;font-size:14px;color:var(--text-3)}

/* ---------- 证言 ---------- */
.testi-grid{display:grid;gap:20px}
@media(min-width:768px){.testi-grid{grid-template-columns:repeat(3,1fr)}}
.testi-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:.3s ease;display:flex;flex-direction:column;gap:16px;
}
.testi-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.testi-top{display:flex;align-items:center;gap:14px}
.testi-avatar{
  width:46px;height:46px;border-radius:50%;flex:none;
  background:linear-gradient(135deg, rgba(18,230,200,.30), rgba(123,97,255,.35));
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:var(--text-1);font-size:15px;
}
.testi-name{font-size:15px;font-weight:700;color:var(--text-1)}
.testi-role{font-size:13px;color:var(--text-3)}
.testi-text{font-size:14.8px;color:var(--text-2);line-height:1.85}
.testi-stars{color:var(--accent);font-size:13px;letter-spacing:2px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--primary);opacity:0;transition:opacity .25s ease;border-radius:3px;
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:22px 40px 22px 18px;font-size:17px;font-weight:700;color:var(--text-1);
  position:relative;transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.faq-q i{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:15px;color:var(--primary);transition:transform .3s ease;
}
.faq-item.open .faq-q i{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 18px}
.faq-item.open .faq-a{max-height:320px}
.faq-a p{padding:0 0 24px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-panel{
  border-radius:20px;border:1px solid rgba(18,230,200,.32);
  background:linear-gradient(135deg, rgba(18,230,200,.09), rgba(123,97,255,.07) 55%, rgba(255,255,255,.03));
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 0 70px rgba(18,230,200,.14);
  padding:34px 24px;
  display:grid;gap:34px;
}
@media(min-width:1024px){.cta-panel{grid-template-columns:1fr 1fr;padding:52px;gap:52px}}
.cta-panel h2{margin-bottom:14px}
.cta-panel .sec-lead{margin-bottom:24px}
.cta-points{list-style:none;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.cta-points i{color:var(--primary);margin-top:6px;font-size:13px}
.contact-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;gap:14px}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr}}
.contact-form input,
.contact-form select,
.contact-form textarea{
  width:100%;background:rgba(255,255,255,.045);border:1px solid var(--line);
  border-radius:12px;padding:13px 16px;font-size:15px;color:var(--text-1);
  transition:.25s ease;outline:none;appearance:none;
}
.contact-form textarea{resize:vertical;min-height:110px}
.contact-form select{background-image:linear-gradient(45deg,transparent 50%,#6B7A93 50%),linear-gradient(135deg,#6B7A93 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%, calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.contact-form select option{background:#0A101E;color:var(--text-1)}
.contact-form input::placeholder,
.contact-form textarea::placeholder{color:var(--text-3)}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,230,200,.16);
}
.contact-form .btn{margin-top:6px;width:100%}
@media(min-width:640px){.contact-form .btn{width:auto;align-self:flex-start;padding-left:38px;padding-right:38px}}
.form-hint{font-size:13px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);
  padding:56px 0 28px;position:relative;z-index:1;
}
@media(min-width:768px){.site-footer{padding:72px 0 30px}}
.footer-grid{display:grid;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-brand{font-size:18px;font-weight:800;color:var(--text-1);display:flex;align-items:center;gap:9px;margin-bottom:14px}
.footer-col h4{
  font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:2px;margin-bottom:16px;
}
.footer-col p,.footer-col li{font-size:14.5px;color:var(--text-2);line-height:1.9}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a:hover{color:var(--primary)}

@media(max-width:520px){
  .btn{padding:11px 20px;font-size:14.5px}
  .pain-card,.stat-card,.news-body,.testi-card{padding-left:20px;padding-right:20px}
  .hero{padding-top:112px}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A101E;
  --surface:rgba(255,255,255,.035);
  --line:rgba(140,200,255,.14);
  --primary:#12E6C8;
  --primary-deep:#0B8F7E;
  --secondary:#7B61FF;
  --accent:#FFC46B;
  --text-1:#EAF2FF;
  --text-2:#A9B7CF;
  --text-3:#6B7A93;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-card:0 16px 48px rgba(0,0,0,.45);
  --shadow-glow:0 10px 34px rgba(18,230,200,.30);
  --container:1200px;
  --mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(140,200,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,200,255,.032) 1px,transparent 1px);
  background-size:48px 48px;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:normal}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#12E6C8 0%,#0B8F7E 100%);
  color:#04120F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 46px rgba(18,230,200,.42)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(18,230,200,.08)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn:disabled,.btn.is-disabled{filter:saturate(.4);box-shadow:none;cursor:not-allowed}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,7,14,.74);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(5,7,14,.94);
  box-shadow:0 12px 34px rgba(0,0,0,.55);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text-1);
  font-size:18px;
  font-weight:800;
  letter-spacing:normal;
}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 12px rgba(18,230,200,.85);
}
.brand .j9{color:var(--primary);text-shadow:0 0 14px rgba(18,230,200,.55)}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
}
.nav-link{
  position:relative;
  padding:6px 0;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:0;
  height:1px;
  background:var(--primary);
  transition:left .2s ease,right .2s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{left:0;right:0;height:2px}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:transparent;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.menu-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:var(--text-1);
  border-radius:2px;
  position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:1.5px;
  background:var(--text-1);
  border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(6,9,18,.98);
  padding:16px 0 26px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:14px 4px;
  font-size:17px;
  color:var(--text-2);
  border-bottom:1px solid rgba(140,200,255,.08);
  opacity:0;
  transform:translateY(8px);
  animation:panelIn .35s ease forwards;
}
.mobile-panel a.active{color:var(--primary)}
@keyframes panelIn{to{opacity:1;transform:translateY(0)}}

/* ============ 面包屑 ============ */
.crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.crumb a{color:var(--text-3);transition:color .2s ease}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(140,200,255,.28)}
.crumb .current{color:var(--text-1)}

/* ============ Hero ============ */
.hero-cat{
  position:relative;
  margin-top:20px;
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  background-image:linear-gradient(110deg,rgba(5,7,14,.94) 0%,rgba(5,7,14,.82) 46%,rgba(5,7,14,.58) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-cat::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(720px 320px at 12% 0%,rgba(18,230,200,.16),transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:56px 48px 46px;
  max-width:840px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(123,97,255,.45);
  color:#C9BDFF;
  font-size:13px;
  letter-spacing:.02em;
  background:rgba(123,97,255,.10);
}
.hero-inner h1{
  margin-top:20px;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  font-weight:800;
  color:var(--text-1);
}
.hero-inner h1 em{
  font-style:normal;
  color:var(--primary);
  text-shadow:0 0 22px rgba(18,230,200,.45);
}
.hero-lead{
  margin-top:20px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin:0 48px 40px;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,.03);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.hero-stats .cell{
  padding:20px 22px;
  border-right:1px solid var(--line);
}
.hero-stats .cell:last-child{border-right:none}
.hero-stats .num{
  font-family:var(--mono);
  font-size:24px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.01em;
}
.hero-stats .label{
  margin-top:6px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 通用板块 ============ */
.section{padding:100px 0;position:relative}
.section-alt{
  background:var(--bg-1);
  border-top:1px solid rgba(140,200,255,.10);
  border-bottom:1px solid rgba(140,200,255,.10);
}
.section-head{max-width:820px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag{
  display:inline-block;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(123,97,255,.42);
  background:rgba(123,97,255,.10);
  color:#C9BDFF;
  font-size:13px;
  letter-spacing:.02em;
}
.section-head h2{
  margin-top:16px;
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.28;
  font-weight:700;
}
.section-head .lead{
  margin-top:16px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.9;
}

/* ============ 要点卡 ============ */
.point-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.point-card{
  position:relative;
  padding:28px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.point-card:hover{
  border-color:rgba(18,230,200,.55);
  transform:translateY(-4px);
  box-shadow:var(--shadow-card);
}
.point-card .idx{
  font-family:var(--mono);
  font-size:14px;
  color:var(--secondary);
  letter-spacing:.08em;
}
.point-card h3{
  margin-top:14px;
  font-size:19px;
  font-weight:700;
  line-height:1.5;
}
.point-card p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
}

/* ============ 目录区（锚点 + 卡片网格） ============ */
.catalog-layout{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:104px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  padding:22px 20px;
}
.anchor-nav h3{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--text-3);
  font-weight:600;
}
.anchor-nav ul{margin-top:14px}
.anchor-nav li + li{margin-top:2px}
.anchor-nav a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.anchor-nav a:hover{color:var(--text-1);background:rgba(18,230,200,.06)}
.anchor-nav a.active{
  color:var(--primary);
  background:rgba(18,230,200,.10);
  border-left-color:var(--primary);
}

.catalog-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.s-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.s-card:hover{
  border-color:rgba(18,230,200,.55);
  transform:translateY(-4px);
  box-shadow:var(--shadow-card);
}
.s-media{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:#080D18;
}
.s-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.s-card:hover .s-media img{transform:scale(1.03)}
.s-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.16) 0%,rgba(5,7,14,.72) 100%);
}
.s-num{
  position:absolute;
  top:14px;left:14px;
  z-index:2;
  font-family:var(--mono);
  font-size:12.5px;
  padding:5px 11px;
  border-radius:8px;
  border:1px solid rgba(123,97,255,.55);
  background:rgba(10,16,30,.78);
  color:#C9BDFF;
  letter-spacing:.08em;
}
.s-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.s-body h3{font-size:19px;line-height:1.5}
.s-body p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
  flex:1;
}
.s-link{
  margin-top:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.s-link .arrow{transition:transform .25s ease}
.s-card:hover .s-link .arrow{transform:translateX(4px)}

/* ============ 场景卡 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  padding:30px 26px;
  border:1px solid var(--line);
  border-left:3px solid rgba(18,230,200,.55);
  border-radius:var(--radius-card);
  background:var(--surface);
  transition:background .25s ease,transform .25s ease;
}
.scene-card:hover{background:rgba(18,230,200,.05);transform:translateY(-4px)}
.scene-card h3{font-size:18.5px;line-height:1.5}
.scene-card p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.scene-card ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.scene-card li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-2);
}
.scene-card li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px rgba(18,230,200,.7);
}

/* ============ 流程 ============ */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  padding:28px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
}
.flow-item::before{
  content:"";
  position:absolute;
  top:46px;right:-24px;
  width:24px;height:1px;
  background:linear-gradient(90deg,rgba(18,230,200,.6),rgba(18,230,200,0));
}
.flow-item:last-child::before{display:none}
.flow-num{
  font-family:var(--mono);
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.04em;
}
.flow-item h3{margin-top:14px;font-size:18px;line-height:1.5}
.flow-item p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-list{
  max-width:900px;
  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;
  padding:24px 4px 24px 0;
  background:none;
  border:none;
  color:var(--text-1);
  font-size:17px;
  font-weight:700;
  text-align:left;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  border:1px solid var(--line);
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item.open .faq-icon{border-color:var(--primary);background:rgba(18,230,200,.10)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a-inner{
  position:relative;
  padding:0 4px 26px 16px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  border-left:3px solid var(--primary);
  margin-left:0;
}
.faq-item.open .faq-q{color:var(--text-1)}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;
  border:1px solid rgba(18,230,200,.28);
  border-radius:24px;
  background:linear-gradient(120deg,rgba(10,16,30,.92) 0%,rgba(8,20,28,.86) 100%);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 24px 70px rgba(18,230,200,.14);
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(620px 280px at 88% 8%,rgba(18,230,200,.18),transparent 70%);
  pointer-events:none;
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  padding:54px 48px;
}
.cta-copy h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
.cta-copy p{margin-top:18px;font-size:15.5px;line-height:1.9;color:var(--text-2)}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--text-2);
}
.cta-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:10px;height:10px;
  border-radius:3px;
  border:1px solid var(--primary);
  background:rgba(18,230,200,.18);
}
.cta-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  align-content:start;
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-3)}
.input,.select,.textarea{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
  color:var(--text-1);
  font-size:15px;
  line-height:1.6;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.input::placeholder,.textarea::placeholder{color:var(--text-3)}
.select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236B7A93' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.input:focus,.select:focus,.textarea:focus{
  border-color:var(--primary);
  background:rgba(18,230,200,.05);
  box-shadow:0 0 0 3px rgba(18,230,200,.16);
}
.textarea{resize:vertical;min-height:104px}
.form-note{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--text-3);
}
.form-msg{
  grid-column:1 / -1;
  display:none;
  font-size:14px;
  color:var(--primary);
  border:1px solid rgba(18,230,200,.35);
  background:rgba(18,230,200,.08);
  border-radius:12px;
  padding:12px 16px;
}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--text-3);
  font-weight:600;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col li,.footer-col p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
}
.footer-col a{color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--primary)}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-brand .j9{color:#12E6C8;text-shadow:0 0 14px rgba(18,230,200,.55)}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(140,200,255,.10);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links{gap:22px}
  .nav-link{font-size:14.5px}
}
@media (max-width:1024px){
  .nav-links,.header-actions .btn-ghost{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .section{padding:84px 0}
  .catalog-layout{grid-template-columns:1fr;gap:28px}
  .anchor-nav{position:static;display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:16px}
  .anchor-nav h3{width:100%;margin-bottom:4px}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:8px;margin-top:0}
  .anchor-nav li + li{margin-top:0}
  .anchor-nav a{border-left:none;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:13.5px}
  .anchor-nav a.active{border-color:var(--primary)}
  .point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-item::before{display:none}
  .cta-grid{grid-template-columns:1fr;gap:36px;padding:44px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:62px}
  .brand{font-size:16px}
  .hero-inner{padding:40px 26px 34px}
  .hero-stats{
    grid-template-columns:repeat(2,1fr);
    margin:0 26px 30px;
  }
  .hero-stats .cell{border-right:none;border-bottom:1px solid var(--line)}
  .hero-stats .cell:nth-child(odd){border-right:1px solid var(--line)}
  .hero-stats .cell:nth-last-child(-n+2){border-bottom:none}
  .section{padding:64px 0}
  .section-head{margin-bottom:32px}
  .catalog-grid{grid-template-columns:1fr}
  .point-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:40px}
}
@media (max-width:520px){
  .hero-cat{border-radius:18px}
  .hero-inner{padding:34px 20px 28px}
  .hero-stats{margin:0 20px 26px;grid-template-columns:1fr}
  .hero-stats .cell{border-right:none !important;border-bottom:1px solid var(--line)}
  .hero-stats .cell:last-child{border-bottom:none}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .s-body{padding:20px 20px 22px}
  .cta-grid{padding:34px 20px}
  .faq-q{font-size:16px;padding:20px 0}
}

/* roulang page: article */
:root{
  --bg-0:#05070E;
  --bg-1:#0A101E;
  --surface:rgba(255,255,255,.035);
  --line:rgba(140,200,255,.14);
  --primary:#12E6C8;
  --primary-deep:#0B8F7E;
  --secondary:#7B61FF;
  --accent:#FFC46B;
  --text-1:#EAF2FF;
  --text-2:#A9B7CF;
  --text-3:#6B7A93;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 16px 48px rgba(0,0,0,.45);
  --shadow-glow:0 10px 34px rgba(18,230,200,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(140,200,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,200,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:normal}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.site-header,main,.site-footer{position:relative;z-index:1}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,7,14,.92);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .3s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:var(--text-1);
  text-decoration:none;white-space:nowrap;
}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 14px rgba(18,230,200,.8);flex:0 0 auto}
.brand .j9{color:var(--primary);text-shadow:0 0 14px rgba(18,230,200,.55)}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:32px;margin-left:auto}
}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  text-decoration:none;padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:1px;
  background:var(--primary);transition:left .25s ease,right .25s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{left:0;right:0}
.nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:4px;border-radius:4px}
.header-actions{display:none;align-items:center;gap:12px}
@media (min-width:1024px){.header-actions{display:flex}}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:6px;
  width:42px;height:42px;margin-left:auto;
  border:1px solid var(--line);border-radius:10px;
  background:rgba(255,255,255,.03);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;margin:0 auto;background:var(--text-1);transition:.25s ease}
.nav-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{
  display:none;flex-direction:column;
  padding:16px 20px 28px;
  background:rgba(5,7,14,.98);
  border-top:1px solid var(--line);
}
.mobile-panel.open{display:flex}
.mobile-panel a{
  color:var(--text-2);text-decoration:none;font-size:17px;
  padding:12px 0;border-bottom:1px solid rgba(140,200,255,.08);
  transition:color .2s ease;
}
.mobile-panel a:hover,.mobile-panel a.active{color:var(--primary)}
@media (min-width:1024px){.mobile-panel{display:none!important}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  padding:12px 22px;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{background:linear-gradient(135deg,#12E6C8,#0B8F7E);color:#03110F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px rgba(18,230,200,.42)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(18,230,200,.08);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 文章首屏 ---------- */
.article-hero{position:relative;padding:112px 0 0;overflow:hidden}
.article-hero::before{
  content:"";position:absolute;top:-140px;left:20%;width:760px;height:520px;
  background:radial-gradient(ellipse at center,rgba(18,230,200,.12),transparent 65%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);text-decoration:none;transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(107,122,147,.6)}
.breadcrumb .current{color:var(--text-1)}
.badge-violet{
  display:inline-flex;align-items:center;
  font-size:13px;padding:5px 13px;border-radius:999px;
  color:#BFB2FF;background:rgba(123,97,255,.14);border:1px solid rgba(123,97,255,.45);
}
.article-title{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.25;font-weight:800;color:var(--text-1);
  margin:18px 0 22px;max-width:960px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.article-meta em{font-style:normal;font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;color:var(--accent)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.55}
.hero-figure{
  position:relative;margin-top:34px;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:21/9;background:var(--bg-1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,14,.10),rgba(5,7,14,.72))}
@media (max-width:640px){.hero-figure{aspect-ratio:16/9}}

/* ---------- 正文区 ---------- */
.article-section{padding:48px 0 40px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;align-items:start}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 220px}}
.article-main{max-width:800px;width:100%;margin:0 auto}
.article-body{
  font-size:16px;line-height:1.9;color:var(--text-2);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;font-weight:700;
  color:var(--text-1);margin:46px 0 16px;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(18,230,200,.55);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--text-1);margin:32px 0 12px}
.article-body h4{font-size:17px;color:var(--text-1);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(18,230,200,.6);
}
.article-body ol{counter-reset:li}
.article-body ol > li{counter-increment:li}
.article-body ol > li::before{
  content:counter(li);
  position:absolute;left:0;top:2px;
  font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;
  font-size:13px;color:var(--secondary);font-weight:700;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  border-left:3px solid var(--primary);
  background:rgba(18,230,200,.06);
  border-radius:0 12px 12px 0;color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body strong{color:var(--text-1);font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#63F3DE}
.article-body img{border-radius:14px;margin:22px 0;border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:rgba(255,255,255,.05);color:var(--text-1);font-weight:700}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body tbody tr:hover{background:rgba(18,230,200,.05)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
@media (max-width:768px){
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .article-body h2{font-size:22px}
}
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  margin-top:48px;padding-top:26px;border-top:1px solid var(--line);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-size:13px;padding:6px 14px;border-radius:8px;text-decoration:none;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary)}
.share-group{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.share-btn{
  font-family:inherit;font-size:13px;padding:7px 15px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease;
}
.share-btn:hover{border-color:var(--primary);color:var(--primary)}
.share-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 侧栏目录 ---------- */
.article-aside{display:none}
@media (min-width:1024px){.article-aside{display:block}}
.toc{
  position:sticky;top:96px;
  padding:18px 16px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--surface);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.toc h4{font-size:13px;color:var(--text-3);letter-spacing:.08em;font-weight:600;margin-bottom:12px}
.toc-link{
  display:block;font-size:14px;line-height:1.5;color:var(--text-2);
  text-decoration:none;padding:7px 0 7px 12px;
  border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.toc-link:hover{color:var(--primary);border-left-color:var(--primary)}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--surface);
}
.empty-icon{
  width:54px;height:54px;margin:0 auto 20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);
  font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;font-size:22px;font-weight:800;
}
.empty-state h2{font-size:22px;color:var(--text-1);margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:26px}

/* ---------- 板块与相关阅读 ---------- */
.section{padding:72px 0}
@media (max-width:768px){.section{padding:48px 0}}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-head .pill{
  display:inline-block;font-size:12px;letter-spacing:.08em;
  color:#BFB2FF;background:rgba(123,97,255,.12);
  border:1px solid rgba(123,97,255,.45);
  padding:5px 13px;border-radius:999px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;margin-bottom:14px}
.sec-head p{font-size:15px;color:var(--text-2)}
.rel-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{
  display:flex;gap:16px;align-items:center;text-decoration:none;
  padding:16px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--surface);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.rel-card img{width:96px;height:72px;border-radius:12px;object-fit:cover;flex:0 0 auto}
.rel-card h3{font-size:16px;font-weight:700;color:var(--text-1);margin-bottom:6px;line-height:1.45}
.rel-card span{font-size:13px;color:var(--text-3)}
.back-row{margin-top:36px;display:flex;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:64px 0 28px;
  background:var(--bg-1);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--text-1);margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{font-size:14px;color:var(--text-3);margin-bottom:10px}
.footer-col a{color:var(--text-3);text-decoration:none;transition:color .2s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* roulang page: category2 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A101E;
  --surface:rgba(255,255,255,0.035);
  --line:rgba(140,200,255,0.14);
  --primary:#12E6C8;
  --primary-deep:#0B8F7E;
  --secondary:#7B61FF;
  --accent:#FFC46B;
  --text-1:#EAF2FF;
  --text-2:#A9B7CF;
  --text-3:#6B7A93;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 16px 48px rgba(0,0,0,.45);
  --shadow-glow:0 10px 34px rgba(18,230,200,.30);
  --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(140,200,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,200,255,.03) 1px, transparent 1px);
  background-size:48px 48px;
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.28;letter-spacing:normal;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background-color .3s ease,border-color .3s ease;
}
.site-header.scrolled{background:rgba(5,7,14,.94);border-bottom-color:rgba(140,200,255,.22);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.site-header.scrolled .header-inner{height:60px;transition:height .3s ease;}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:18px;font-weight:800;color:var(--text-1);letter-spacing:.2px;white-space:nowrap;
}
.brand .j9{color:var(--primary);text-shadow:0 0 14px rgba(18,230,200,.55);}
.brand-dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 12px rgba(18,230,200,.8);display:inline-block;flex:none;
}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:100%;height:1px;
  background:var(--primary);transform:translateX(-50%) scaleX(0);
  transform-origin:center;transition:transform .2s ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{transform:translateX(-50%) scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--text-1);background:transparent;
  transition:border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(18,230,200,.08);transform:translateY(-1px);}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 22px;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#03110F;font-weight:700;font-size:14.5px;
  box-shadow:var(--shadow-glow);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px rgba(18,230,200,.42);color:#03110F;}
.btn-primary:active{transform:scale(.98);}
.btn-primary[disabled]{filter:saturate(.4);box-shadow:none;cursor:not-allowed;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);
  border:1px solid var(--line);color:var(--text-1);background:transparent;font-weight:600;font-size:14.5px;
  transition:border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.btn-outline:hover{border-color:var(--primary);background:rgba(18,230,200,.08);transform:translateY(-2px);}
.btn-outline:active{transform:scale(.98);}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:6px;width:42px;height:42px;}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--text-1);margin:0 auto;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.8px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.8px) rotate(-45deg);}

@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .header-actions{display:none;}
  .nav-links{
    position:fixed;inset:0;z-index:55;
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:6px;padding:96px 28px;
    background:rgba(5,7,14,.98);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:none;}
  .nav-links .nav-link{font-size:22px;padding:10px 0;color:var(--text-1);}
  .nav-links .nav-link::after{display:none;}
  .nav-links .nav-link.active{color:var(--primary);}
}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:rgba(140,200,255,.3);}
.crumbs .current{color:var(--text-1);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 380px at 12% 0%, rgba(18,230,200,.16), transparent 68%),
    linear-gradient(180deg, rgba(5,7,14,.55) 0%, rgba(5,7,14,.94) 82%, var(--bg-0) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-body{padding:64px 0 56px;max-width:760px;}
@media (min-width:1024px){.hero-body{padding:78px 0 68px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(123,97,255,.45);
  background:rgba(123,97,255,.10);
  color:#CBC2FF;font-size:12.5px;letter-spacing:.4px;margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.16;font-weight:800;
  margin-bottom:20px;
}
.page-hero h1 .hl{color:var(--primary);text-shadow:0 0 18px rgba(18,230,200,.35);}
.hero-lead{font-size:16px;color:var(--text-2);max-width:640px;line-height:1.9;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line);}
.hero-meta .m-item{min-width:120px;}
.hero-meta .m-num{font-family:var(--mono);font-size:22px;color:var(--accent);font-weight:700;display:block;line-height:1.3;}
.hero-meta .m-label{font-size:13px;color:var(--text-3);}

/* ---------- Sections ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:100px 0;}}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:700px;margin-bottom:32px;}
@media (min-width:1024px){.section-head{margin-bottom:44px;}}
.tag-pill{
  display:inline-block;padding:5px 13px;border-radius:999px;
  border:1px solid rgba(123,97,255,.45);background:rgba(123,97,255,.10);
  color:#CBC2FF;font-size:12.5px;letter-spacing:.4px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,3.2vw,36px);line-height:1.25;margin-bottom:14px;}
.section-head .sub{font-size:15.5px;color:var(--text-2);line-height:1.85;max-width:620px;}
.center-head{text-align:center;margin-left:auto;margin-right:auto;}
.center-head .sub{margin-left:auto;margin-right:auto;}

/* ---------- Benefit cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:22px;}
@media (min-width:640px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}}
.benefit-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease,background-color .25s ease;
  overflow:hidden;
}
.benefit-card:hover{border-color:rgba(18,230,200,.55);transform:translateY(-4px);background:rgba(255,255,255,.05);}
.benefit-card .idx{
  font-family:var(--mono);font-size:13px;color:var(--secondary);
  border:1px solid rgba(123,97,255,.4);border-radius:8px;padding:2px 8px;display:inline-block;margin-bottom:16px;
}
.benefit-card h3{font-size:19px;margin-bottom:10px;}
.benefit-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.benefit-card .cover{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;margin-bottom:18px;
  filter:saturate(.85) brightness(.9);
}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:12px;}
.timeline::before{
  content:"";position:absolute;left:18px;top:6px;bottom:24px;width:1px;
  background:linear-gradient(180deg,rgba(18,230,200,.6),rgba(18,230,200,.06));
}
.tl-item{position:relative;padding-left:56px;padding-bottom:42px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:10px;top:7px;width:17px;height:17px;border-radius:50%;
  background:var(--bg-0);border:1px solid rgba(18,230,200,.65);
  box-shadow:0 0 0 5px rgba(18,230,200,.08);
}
.tl-node::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--primary);}
.tl-num{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:1px;display:block;margin-bottom:8px;}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);transition:border-color .25s ease,transform .25s ease;
}
.tl-card:hover{border-color:rgba(18,230,200,.5);transform:translateY(-3px);}
.tl-card h3{font-size:18px;margin-bottom:10px;}
.tl-card p{font-size:14.5px;color:var(--text-2);line-height:1.82;}
.tl-card .tl-tip{
  margin-top:14px;padding-top:14px;border-top:1px dashed rgba(140,200,255,.18);
  font-size:13px;color:var(--text-3);
}
.tl-card .tl-tip strong{color:var(--primary);font-weight:600;}
@media (min-width:1024px){
  .timeline::before{left:50%;transform:translateX(-50%);}
  .tl-item{width:50%;padding-left:0;padding-right:56px;text-align:right;}
  .tl-item .tl-card{text-align:left;}
  .tl-item .tl-num{text-align:right;}
  .tl-node{left:auto;right:-8.5px;top:9px;}
  .tl-item:nth-child(even){margin-left:50%;padding-left:56px;padding-right:0;text-align:left;}
  .tl-item:nth-child(even) .tl-num{text-align:left;}
  .tl-item:nth-child(even) .tl-node{left:-8.5px;right:auto;}
}

/* ---------- Progress strip ---------- */
.progress-panel{
  margin-top:8px;padding:34px 28px;border-radius:var(--radius-card);
  border:1px solid rgba(18,230,200,.28);
  background:linear-gradient(180deg,rgba(18,230,200,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 20px 60px rgba(0,0,0,.42);
}
.progress-title{font-size:15px;color:var(--text-1);font-weight:700;margin-bottom:18px;}
.progress-track{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px;}
.progress-track .step{
  flex:1 1 130px;min-width:120px;
  border-top:2px solid rgba(18,230,200,.28);
  padding-top:12px;font-size:13px;color:var(--text-3);
}
.progress-track .step.on{border-top-color:var(--primary);color:var(--text-1);}
.progress-track .step .s-num{font-family:var(--mono);display:block;font-size:12px;color:var(--text-3);margin-bottom:4px;}
.progress-track .step.on .s-num{color:var(--accent);}
.progress-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;text-align:left;
  font-size:17px;font-weight:700;color:var(--text-1);line-height:1.6;
  position:relative;transition:color .22s ease,padding-left .24s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .24s ease;
}
.faq-item.open .faq-q{padding-left:16px;color:var(--primary);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q .sign{flex:none;font-family:var(--mono);font-size:20px;color:var(--primary);line-height:1;margin-top:4px;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;padding-left:0;}
.faq-item.open .faq-a{padding-left:16px;}
.faq-a p{padding:0 0 24px;font-size:15px;color:var(--text-2);line-height:1.88;max-width:860px;}

/* ---------- CTA panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:20px;
  border:1px solid rgba(18,230,200,.3);
  background:linear-gradient(140deg,rgba(18,230,200,.10),rgba(123,97,255,.10) 55%,rgba(255,255,255,.02));
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 22px 70px rgba(0,0,0,.5),0 0 44px rgba(18,230,200,.14);
  padding:40px 28px;
}
@media (min-width:1024px){
  .cta-panel{padding:56px 48px;}
  .cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
}
.cta-panel h2{font-size:clamp(23px,3vw,34px);margin-bottom:16px;line-height:1.28;}
.cta-panel p{font-size:15px;color:var(--text-2);line-height:1.88;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-facts{display:grid;gap:14px;margin-top:28px;}
@media (min-width:1024px){.cta-facts{margin-top:0;}}
.fact-row{
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;border-radius:14px;
  border:1px solid var(--line);background:rgba(5,7,14,.42);
}
.fact-row .f-ico{
  flex:none;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,230,200,.12);border:1px solid rgba(18,230,200,.34);
  color:var(--primary);font-family:var(--mono);font-size:13px;
}
.fact-row strong{display:block;color:var(--text-1);font-size:14.5px;font-weight:600;}
.fact-row span{font-size:13px;color:var(--text-3);}

/* ---------- Quick links ---------- */
.quick-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.quick-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  font-size:14.5px;color:var(--text-1);
  transition:border-color .22s ease,transform .22s ease,background-color .22s ease;
}
.quick-link:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);background:rgba(18,230,200,.06);}
.quick-link .arrow{font-family:var(--mono);font-size:13px;color:var(--text-3);}
.quick-link:hover .arrow{color:var(--primary);}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:60px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;}}
.footer-brand{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:800;color:var(--text-1);margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:13px;font-weight:600;color:var(--text-1);
  letter-spacing:1.6px;margin-bottom:18px;
}
.footer-col ul li{font-size:14px;color:var(--text-3);margin-bottom:11px;line-height:1.7;}
.footer-col ul li a{color:var(--text-3);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- Motion ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A101E;
  --surface:rgba(255,255,255,.035);
  --line:rgba(140,200,255,.14);
  --primary:#12E6C8;
  --primary-deep:#0B8F7E;
  --secondary:#7B61FF;
  --accent:#FFC46B;
  --text-1:#EAF2FF;
  --text-2:#A9B7CF;
  --text-3:#6B7A93;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 16px 48px rgba(0,0,0,.45);
  --shadow-glow:0 10px 34px rgba(18,230,200,.30);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.85;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(140,200,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(140,200,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--text-1);margin:0;letter-spacing:normal;}
h1{font-weight:800;line-height:1.15;font-size:clamp(34px,5vw,58px);}
h2{font-weight:700;line-height:1.25;font-size:clamp(26px,3.4vw,40px);}
h3{font-weight:700;font-size:20px;line-height:1.45;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}
.mono{font-family:ui-monospace,'JetBrains Mono',SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{
  font-size:18px;font-weight:800;color:var(--text-1);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.brand .j9{color:var(--primary);text-shadow:0 0 14px rgba(18,230,200,.55);}
.brand-dot{
  width:8px;height:8px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 12px rgba(18,230,200,.9);display:inline-block;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 2px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:1px;
  background:var(--primary);transform:translateX(-50%);transition:width .2s ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{width:100%;background:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:transparent;cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:1.5px;background:var(--text-1);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:17px;}
.nav-toggle span:nth-child(2){top:25px;}
.nav-toggle.open span:nth-child(1){transform:translateY(4px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){transform:translateY(-4px) rotate(-45deg);}
.mobile-panel{
  display:none;position:fixed;inset:72px 0 0 0;background:rgba(5,7,14,.98);
  backdrop-filter:blur(18px);z-index:55;padding:32px 24px;overflow-y:auto;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;font-size:20px;font-weight:700;color:var(--text-1);
  padding:18px 4px;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(10px);animation:riseIn .35s ease forwards;
}
@keyframes riseIn{to{opacity:1;transform:translateY(0);}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px rgba(18,230,200,.42);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(18,230,200,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled{filter:saturate(.4);box-shadow:none;cursor:not-allowed;}
.link-more{
  color:var(--primary);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
}
.link-more:hover{color:var(--text-1);}

/* ---------- Section basics ---------- */
.section{padding:96px 0;position:relative;}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.divider-line{height:1px;background:linear-gradient(90deg,rgba(18,230,200,.55),rgba(18,230,200,0));}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;border:1px solid rgba(123,97,255,.5);
  color:#B7A8FF;font-size:13px;letter-spacing:.04em;margin-bottom:18px;
}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .lead{color:var(--text-2);font-size:15.5px;margin-top:18px;margin-bottom:0;}
.section-head h2 + .lead{margin-top:16px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:132px 0 88px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 420px at 22% 0%,rgba(18,230,200,.14),transparent 68%),
             linear-gradient(180deg,rgba(5,7,14,.86),rgba(5,7,14,.96));
}
.hero .container{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 8px;color:var(--text-3);}
.breadcrumb .current{color:var(--text-1);}
.hero h1{max-width:860px;margin-bottom:22px;}
.hero-sub{max-width:680px;font-size:17px;color:var(--text-2);margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px;}
.glass{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(140,200,255,.2);
  backdrop-filter:blur(18px);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;overflow:hidden;}
.data-strip .cell{padding:22px 24px;background:transparent;}
.data-strip .num{font-size:26px;font-weight:800;color:var(--accent);line-height:1.2;}
.data-strip .lbl{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.card:hover{border-color:rgba(18,230,200,.55);transform:translateY(-4px);}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}

/* ---------- Case wall ---------- */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease;
}
.wall-item:hover{border-color:rgba(18,230,200,.55);transform:translateY(-4px);}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.wall-item:hover img{transform:scale(1.04);}
.wall-item.tall{grid-row:span 2;}
.wall-media{position:relative;width:100%;height:100%;min-height:240px;}
.wall-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.15) 20%,rgba(5,7,14,.92) 100%);
}
.wall-body{position:absolute;left:0;right:0;bottom:0;padding:24px;}
.wall-body .tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:8px;
  border:1px solid rgba(123,97,255,.55);color:#B7A8FF;margin-bottom:10px;
}
.wall-body h3{font-size:18px;margin-bottom:8px;}
.wall-body p{font-size:14px;color:var(--text-2);margin:0;}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:16px;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:28px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(18,230,200,.6),rgba(140,200,255,.12));
}
.tl-item{position:relative;padding-left:76px;margin-bottom:36px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:20px;top:4px;width:17px;height:17px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);
  box-shadow:0 0 14px rgba(18,230,200,.65);
}
.tl-num{font-size:13px;color:var(--secondary);font-weight:700;letter-spacing:.06em;}
.tl-item h3{margin:6px 0 8px;}
.tl-item p{margin:0;font-size:15px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;font-size:17px;font-weight:700;color:var(--text-1);
  position:relative;transition:color .2s ease;
}
.faq-item.open .faq-q{padding-left:18px;}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  border-radius:2px;background:var(--primary);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{font-size:22px;color:var(--primary);line-height:1;flex:0 0 auto;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 0 22px 18px;margin:0;font-size:15px;color:var(--text-2);}

/* ---------- Form ---------- */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-3);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-btn);
  background:rgba(5,7,14,.7);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:108px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,230,200,.18);
}

/* ---------- CTA panel ---------- */
.cta-panel{
  border-radius:20px;padding:44px;
  background:linear-gradient(135deg,rgba(18,230,200,.09),rgba(123,97,255,.09));
  border:1px solid rgba(18,230,200,.35);
  box-shadow:0 0 60px rgba(18,230,200,.14);
  display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start;
}
.cta-list li{
  padding-left:22px;position:relative;margin-bottom:10px;font-size:15px;color:var(--text-2);
}
.cta-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(18,230,200,.7);
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{font-size:18px;font-weight:800;color:var(--text-1);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.85;}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--text-2);}
.footer-col ul li a{color:var(--text-2);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-actions .btn-ghost{display:none;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .wall{grid-template-columns:repeat(2,1fr);}
  .wall-item.tall{grid-row:span 1;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:76px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .data-strip{grid-template-columns:repeat(2,1fr);}
  .data-strip .cell{padding:18px;}
  .hero{padding:104px 0 64px;}
  .hero-sub{font-size:16px;}
  .form-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:62px;}
  .timeline::before{left:22px;}
  .tl-dot{left:14px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:520px){
  .wall{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-panel{padding:24px;}
  .section{padding:60px 0;}
}

/* roulang page: category3 */
:root{
    --bg-0:#05070E;
    --bg-1:#0A101E;
    --surface:rgba(255,255,255,0.035);
    --glass:rgba(255,255,255,0.05);
    --line:rgba(140,200,255,0.14);
    --line-strong:rgba(140,200,255,0.26);
    --primary:#12E6C8;
    --primary-deep:#0B8F7E;
    --secondary:#7B61FF;
    --accent:#FFC46B;
    --text-1:#EAF2FF;
    --text-2:#A9B7CF;
    --text-3:#6B7A93;
    --radius-card:16px;
    --radius-btn:12px;
    --shadow-card:0 16px 48px rgba(0,0,0,.45);
    --shadow-glow:0 10px 34px rgba(18,230,200,.30);
    --container:1200px;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background-color:var(--bg-0);
    color:var(--text-2);
    font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:normal;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      linear-gradient(rgba(140,200,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(140,200,255,.03) 1px, transparent 1px);
    background-size:48px 48px, 48px 48px;
  }
  .page-glow{
    position:absolute;
    top:-160px; left:50%;
    transform:translateX(-50%);
    width:1100px; height:620px;
    background:radial-gradient(ellipse at center, rgba(18,230,200,.12) 0%, rgba(18,230,200,0) 68%);
    pointer-events:none;
    z-index:0;
  }

  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; transition:color .22s ease, border-color .22s ease, background-color .22s ease, opacity .22s ease; }
  button{ font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
  input,select,textarea{ font:inherit; }

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding-left:32px;
    padding-right:32px;
    position:relative;
    z-index:1;
  }

  h1,h2,h3,h4{ color:var(--text-1); margin:0; letter-spacing:normal; font-weight:700; }
  h1{ font-size:clamp(34px,5vw,58px); line-height:1.15; font-weight:800; }
  h2{ font-size:clamp(26px,3.4vw,40px); line-height:1.25; font-weight:700; }
  h3{ font-size:20px; line-height:1.45; font-weight:700; }
  p{ margin:0 0 16px; }
  .mono{ font-family:ui-monospace,'JetBrains Mono',SFMono-Regular,Menlo,Consolas,monospace; font-variant-numeric:tabular-nums; }

  /* ============ HEADER / NAV ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(5,7,14,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:padding .28s ease, background-color .28s ease;
  }
  .site-header.is-scrolled{
    background:rgba(5,7,14,.95);
    box-shadow:0 10px 30px rgba(0,0,0,.5);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    height:72px;
    transition:height .28s ease;
  }
  .site-header.is-scrolled .header-inner{ height:60px; }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:800;
    color:var(--text-1);
    white-space:nowrap;
  }
  .brand-dot{
    width:9px; height:9px; border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 14px rgba(18,230,200,.85);
    flex:0 0 auto;
  }
  .brand .j9{
    color:var(--primary);
    text-shadow:0 0 14px rgba(18,230,200,.55);
  }

  .nav-links{
    display:flex;
    align-items:center;
    gap:32px;
  }
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--text-2);
    padding:6px 2px;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:50%; bottom:-2px;
    width:0; height:1px;
    background:var(--primary);
    transform:translateX(-50%);
    transition:width .22s ease;
  }
  .nav-link:hover{ color:var(--text-1); }
  .nav-link:hover::after{ width:100%; }
  .nav-link.active{ color:var(--text-1); }
  .nav-link.active::after{ width:100%; }
  .nav-link.active::before{
    content:"";
    position:absolute;
    left:50%; bottom:-13px;
    width:6px; height:6px;
    border-radius:50%;
    background:var(--primary);
    transform:translateX(-50%);
  }

  .header-cta{ display:flex; align-items:center; gap:12px; }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    padding:13px 22px;
    border-radius:var(--radius-btn);
    transition:transform .2s ease, box-shadow .24s ease, background-color .24s ease, border-color .24s ease, color .24s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(120deg, var(--primary) 0%, var(--primary-deep) 100%);
    color:#04120F;
    box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{
    transform:translateY(-2px);
    box-shadow:0 14px 44px rgba(18,230,200,.42);
  }
  .btn-primary:active{ transform:scale(.98); }
  .btn-ghost{
    background:transparent;
    border:1px solid var(--line-strong);
    color:var(--text-1);
  }
  .btn-ghost:hover{
    border-color:var(--primary);
    background:rgba(18,230,200,.08);
    transform:translateY(-2px);
  }
  .btn-ghost:active{ transform:scale(.98); }
  .btn-pill{ border-radius:999px; }
  .btn:focus-visible,
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:3px;
  }
  .btn-sm{ padding:10px 18px; font-size:14px; }

  .nav-toggle{
    display:none;
    width:44px; height:44px;
    border-radius:10px;
    border:1px solid var(--line);
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
  }
  .nav-toggle span{
    display:block;
    width:18px; height:1.5px;
    background:var(--text-1);
    transition:transform .24s ease, opacity .24s ease;
  }
  .nav-toggle.is-open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2){ opacity:0; }
  .nav-toggle.is-open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

  .mobile-panel{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(6,9,18,.98);
    padding:18px 0 26px;
  }
  .mobile-panel.is-open{ display:block; }
  .mobile-panel a{
    display:block;
    padding:14px 4px;
    font-size:18px;
    font-weight:600;
    color:var(--text-1);
    border-bottom:1px solid var(--line);
    opacity:0;
    transform:translateY(8px);
    animation:mFade .34s ease forwards;
  }
  .mobile-panel a:nth-child(1){ animation-delay:.04s; }
  .mobile-panel a:nth-child(2){ animation-delay:.09s; }
  .mobile-panel a:nth-child(3){ animation-delay:.14s; }
  .mobile-panel a:nth-child(4){ animation-delay:.19s; }
  .mobile-panel a:nth-child(5){ animation-delay:.24s; }
  .mobile-panel a.active{ color:var(--primary); }
  @keyframes mFade{ to{ opacity:1; transform:translateY(0); } }

  /* ============ HERO ============ */
  .hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .hero-bg{
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    opacity:.36;
    filter:saturate(.9);
  }
  .hero-mask{
    position:absolute;
    inset:0;
    background:linear-gradient(100deg, rgba(5,7,14,.96) 0%, rgba(5,7,14,.82) 45%, rgba(5,7,14,.62) 100%);
  }
  .hero-inner{
    position:relative;
    z-index:2;
    padding:64px 0 72px;
    max-width:820px;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:22px;
  }
  .breadcrumb a:hover{ color:var(--primary); }
  .breadcrumb .sep{ color:var(--line-strong); }
  .breadcrumb .current{ color:var(--text-1); }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--secondary);
    border:1px solid rgba(123,97,255,.42);
    background:rgba(123,97,255,.08);
    padding:5px 14px;
    border-radius:999px;
    margin-bottom:20px;
  }
  .lede{
    font-size:17px;
    color:var(--text-2);
    max-width:660px;
    margin:20px 0 30px;
  }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; }

  .stat-bar{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1px;
    margin-top:48px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--glass);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    overflow:hidden;
  }
  .stat-item{
    padding:22px 24px;
    background:rgba(5,7,14,.35);
  }
  .stat-num{
    font-family:ui-monospace,'JetBrains Mono',Menlo,Consolas,monospace;
    font-size:28px;
    font-weight:700;
    color:var(--accent);
    line-height:1.2;
    display:block;
  }
  .stat-label{
    font-size:13px;
    color:var(--text-3);
    margin-top:6px;
    display:block;
  }

  /* ============ SECTIONS ============ */
  section{ position:relative; }
  .section{ padding:96px 0; }
  .section-alt{ background:var(--bg-1); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .section-head{ max-width:720px; margin-bottom:44px; }
  .section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
  .tag{
    display:inline-block;
    font-size:12px;
    color:var(--secondary);
    border:1px solid rgba(123,97,255,.4);
    background:rgba(123,97,255,.08);
    padding:4px 12px;
    border-radius:999px;
    margin-bottom:16px;
    letter-spacing:.02em;
  }
  .section-head h2{ margin-bottom:16px; }
  .section-head p{ color:var(--text-2); font-size:16px; margin-bottom:0; max-width:640px; }
  .section-head.center p{ margin-left:auto; margin-right:auto; }

  .grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }

  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:28px;
    box-shadow:var(--shadow-card);
    transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
    position:relative;
    overflow:hidden;
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(18,230,200,.5);
    box-shadow:0 22px 56px rgba(0,0,0,.55);
  }
  .card h3{ margin-bottom:12px; }
  .card p{ font-size:15px; color:var(--text-2); margin-bottom:0; }
  .card-index{
    font-family:ui-monospace,'JetBrains Mono',Menlo,Consolas,monospace;
    font-size:13px;
    color:var(--secondary);
    display:block;
    margin-bottom:14px;
  }

  .feature-wide{
    display:grid;
    grid-template-columns:1.05fr 1fr;
    gap:0;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--surface);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    margin-bottom:24px;
  }
  .feature-wide .fw-media{
    position:relative;
    min-height:280px;
    background-image:url('/assets/images/coverpic/cover-3.png');
    background-size:cover;
    background-position:center;
    aspect-ratio:4/3;
  }
  .feature-wide .fw-media::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(90deg, rgba(5,7,14,.1), rgba(5,7,14,.55));
  }
  .feature-wide .fw-body{ padding:34px; display:flex; flex-direction:column; justify-content:center; }
  .fw-list{ list-style:none; margin:18px 0 0; padding:0; }
  .fw-list li{
    position:relative;
    padding-left:20px;
    font-size:15px;
    color:var(--text-2);
    margin-bottom:10px;
  }
  .fw-list li::before{
    content:"";
    position:absolute;
    left:0; top:11px;
    width:6px; height:6px;
    border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 10px rgba(18,230,200,.7);
  }

  /* ============ 对比表 ============ */
  .table-scroll{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    background:var(--surface);
    box-shadow:var(--shadow-card);
  }
  .table-inner{ overflow-x:auto; -webkit-overflow-scrolling:touch; }
  table.compare{
    width:100%;
    min-width:720px;
    border-collapse:collapse;
    font-size:15px;
  }
  table.compare thead th{
    background:rgba(5,7,14,.85);
    color:var(--text-1);
    font-size:14px;
    font-weight:700;
    text-align:left;
    padding:18px 22px;
    border-bottom:1px solid var(--line-strong);
    white-space:nowrap;
  }
  table.compare thead th.best{
    color:var(--primary);
    background:rgba(18,230,200,.07);
    border-bottom:1px solid rgba(18,230,200,.4);
  }
  table.compare tbody td{
    padding:18px 22px;
    border-bottom:1px solid var(--line);
    color:var(--text-2);
    vertical-align:top;
    line-height:1.75;
  }
  table.compare tbody tr:last-child td{ border-bottom:none; }
  table.compare tbody tr:hover td{ background:rgba(140,200,255,.035); }
  table.compare tbody td:first-child{
    color:var(--text-1);
    font-weight:700;
    white-space:nowrap;
  }
  table.compare tbody td.best{ background:rgba(18,230,200,.04); color:var(--text-1); }
  .tick{
    display:inline-flex;
    align-items:center;
    gap:8px;
  }
  .tick::before{
    content:"";
    width:14px; height:14px;
    flex:0 0 auto;
    border-radius:4px;
    background:rgba(18,230,200,.16);
    border:1px solid rgba(18,230,200,.6);
    background-image:linear-gradient(135deg, transparent 46%, var(--primary) 46%, var(--primary) 54%, transparent 54%);
  }
  .scroll-hint{ font-size:13px; color:var(--text-3); margin-top:12px; }

  /* ============ 步骤流程 ============ */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
    position:relative;
  }
  .steps::before{
    content:"";
    position:absolute;
    top:22px; left:8%;
    right:8%; height:1px;
    background:linear-gradient(90deg, rgba(18,230,200,0), rgba(18,230,200,.45), rgba(123,97,255,.4), rgba(18,230,200,0));
  }
  .step{ position:relative; padding-top:56px; }
  .step-node{
    position:absolute;
    top:8px; left:0;
    width:30px; height:30px;
    border-radius:50%;
    background:var(--bg-0);
    border:1px solid rgba(18,230,200,.6);
    color:var(--primary);
    font-family:ui-monospace,'JetBrains Mono',Menlo,Consolas,monospace;
    font-size:12px;
    display:flex; align-items:center; justify-content:center;
    box-shadow:0 0 0 6px rgba(18,230,200,.07);
  }
  .step h3{ font-size:18px; margin-bottom:10px; }
  .step p{ font-size:15px; margin-bottom:0; }

  /* ============ 场景卡 ============ */
  .scene{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
  }
  .scene-card{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--bg-1);
    overflow:hidden;
    transition:transform .24s ease, border-color .24s ease;
  }
  .scene-card:hover{ transform:translateY(-4px); border-color:rgba(18,230,200,.5); }
  .scene-card img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
  }
  .scene-body{ padding:24px; }
  .scene-body h3{ font-size:18px; margin-bottom:10px; }
  .scene-body p{ font-size:15px; margin-bottom:0; }
  .badge{
    display:inline-block;
    font-size:12px;
    color:var(--primary);
    border:1px solid rgba(18,230,200,.45);
    background:rgba(18,230,200,.08);
    padding:3px 10px;
    border-radius:8px;
    margin-bottom:12px;
  }

  /* ============ FAQ ============ */
  .faq-list{ border-top:1px solid var(--line); }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-q{
    width:100%;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    text-align:left;
    padding:24px 0 24px 0;
    font-size:17px;
    font-weight:700;
    color:var(--text-1);
    position:relative;
    transition:color .2s ease, padding-left .24s ease;
  }
  .faq-q::before{
    content:"";
    position:absolute;
    left:0; top:26px; bottom:26px;
    width:3px;
    border-radius:2px;
    background:var(--primary);
    opacity:0;
    transition:opacity .24s ease;
  }
  .faq-q:hover{ color:var(--primary); }
  .faq-item.is-open .faq-q{ color:var(--primary); padding-left:16px; }
  .faq-item.is-open .faq-q::before{ opacity:1; }
  .faq-icon{
    flex:0 0 auto;
    font-family:ui-monospace,Menlo,Consolas,monospace;
    font-size:20px;
    line-height:1;
    color:var(--primary);
    width:26px;
    text-align:center;
    margin-top:2px;
  }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .34s ease;
  }
  .faq-a-inner{
    padding:0 0 26px 0;
    font-size:15px;
    color:var(--text-2);
    max-width:820px;
  }
  .faq-item.is-open .faq-a-inner{ padding-left:16px; }

  /* ============ CTA ============ */
  .cta-panel{
    position:relative;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:44px;
    align-items:center;
    padding:48px;
    border-radius:20px;
    border:1px solid rgba(18,230,200,.34);
    background:linear-gradient(150deg, rgba(18,230,200,.10), rgba(123,97,255,.09) 62%, rgba(255,255,255,.03));
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:0 0 60px rgba(18,230,200,.14), var(--shadow-card);
    overflow:hidden;
  }
  .cta-panel h2{ margin-bottom:14px; }
  .cta-panel p{ color:var(--text-2); font-size:16px; margin-bottom:0; }
  .cta-form{
    background:rgba(5,7,14,.55);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:26px;
  }
  .field{ margin-bottom:16px; }
  .field label{
    display:block;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:7px;
  }
  .field input,
  .field select,
  .field textarea{
    width:100%;
    background:rgba(255,255,255,.03);
    border:1px solid var(--line);
    border-radius:10px;
    padding:12px 14px;
    font-size:15px;
    color:var(--text-1);
    transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
  }
  .field input::placeholder,
  .field textarea::placeholder{ color:var(--text-3); }
  .field select{ appearance:none; }
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(18,230,200,.18);
    background:rgba(18,230,200,.05);
  }
  .field textarea{ min-height:92px; resize:vertical; }
  .field-row{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
  .form-note{ font-size:13px; color:var(--text-3); margin:12px 0 0; }

  /* ============ FOOTER ============ */
  .site-footer{
    background:var(--bg-1);
    border-top:1px solid var(--line);
    padding:64px 0 28px;
    position:relative;
    z-index:1;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:44px;
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:17px;
    font-weight:800;
    color:var(--text-1);
    margin-bottom:16px;
  }
  .footer-col p{ font-size:14px; color:var(--text-3); line-height:1.8; margin:0; }
  .footer-col h4{
    font-size:13px;
    color:var(--text-3);
    font-weight:700;
    letter-spacing:.08em;
    margin-bottom:18px;
  }
  .footer-col ul{ list-style:none; margin:0; padding:0; }
  .footer-col ul li{ font-size:14px; color:var(--text-3); margin-bottom:12px; }
  .footer-col ul li a{ font-size:14px; color:var(--text-2); }
  .footer-col ul li a:hover{ color:var(--primary); }
  .footer-bottom{
    border-top:1px solid var(--line);
    padding-top:22px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-3);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .container{ padding-left:24px; padding-right:24px; }
    .nav-links{ display:none; }
    .header-cta .btn-ghost{ display:none; }
    .nav-toggle{ display:flex; }
    .section{ padding:76px 0; }
    .stat-bar{ grid-template-columns:repeat(2,1fr); }
    .grid-3, .scene{ grid-template-columns:repeat(2,1fr); }
    .steps{ grid-template-columns:repeat(2,1fr); }
    .steps::before{ display:none; }
    .step{ padding-top:52px; }
    .cta-panel{ grid-template-columns:1fr; padding:38px; gap:30px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
    .feature-wide{ grid-template-columns:1fr; }
    .feature-wide .fw-media{ aspect-ratio:16/9; min-height:auto; }
  }
  @media (max-width:768px){
    body{ font-size:15px; }
    .container{ padding-left:20px; padding-right:20px; }
    .section{ padding:56px 0; }
    .hero-inner{ padding:44px 0 52px; }
    .grid-3, .grid-2, .scene, .steps{ grid-template-columns:1fr; }
    .card{ padding:20px; }
    .feature-wide .fw-body{ padding:24px; }
    .cta-panel{ padding:26px; border-radius:16px; }
    .cta-form{ padding:20px; }
    .field-row{ grid-template-columns:1fr; }
    .footer-grid{ grid-template-columns:1fr; gap:28px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
    .stat-item{ padding:18px 18px; }
    .stat-num{ font-size:24px; }
  }
  @media (max-width:520px){
    h1{ font-size:30px; }
    .btn{ padding:12px 18px; font-size:14px; }
    .hero-actions{ flex-direction:column; align-items:stretch; }
    .hero-actions .btn{ width:100%; }
    .header-cta .btn-primary{ padding:10px 14px; font-size:13px; }
  }
  @media (prefers-reduced-motion:reduce){
    *{ animation-duration:.01ms !important; transition-duration:.01ms !important; }
  }