/* roulang page: index */
/* ==========================================================================
   米兰体育官网网页版 —— 设计系统
   配色推导：深靛夜蓝作页面基底（赛场夜灯），米兰红作品牌主色（竞技记忆），
   赛场青绿作数据与交互辅色，暖金仅用于少量徽章点缀，整体保持企业站的克制可信感。
   ========================================================================== */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --brand:#D9143C;
  --brand-deep:#A80E2E;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --shadow-hover:0 22px 56px rgba(0,0,0,.5);
  --maxw:1280px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}

*,*::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-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px),
    repeating-linear-gradient(118deg,transparent 0 54px,rgba(47,224,192,.028) 54px 55px);
  background-size:64px 64px,64px 64px,auto;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
::selection{background:rgba(217,20,60,.35);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#05080F}
::-webkit-scrollbar-thumb{background:rgba(147,164,189,.28);border-radius:999px;border:2px solid #05080F}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,192,.5)}

:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}

/* 布局基础 */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.container-narrow{width:100%;max-width:820px;margin:0 auto;padding:0 32px}
main{position:relative;z-index:1}
.section{padding:clamp(56px,8vw,112px) 0;position:relative}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);font-weight:600;margin-bottom:14px;
}
.section-label::before{content:"";width:22px;height:1px;background:var(--brand-2);opacity:.7}
.section-title{
  font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;
  letter-spacing:-.01em;margin:0 0 16px;color:var(--text-1);
}
.section-sub{max-width:66ch;color:var(--text-2);font-size:16px;margin:0 0 8px}
.text-balance{text-wrap:balance}

/* 玻璃拟态 */
.glass{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.glass-hover:hover{
  border-color:rgba(217,20,60,.3);
  box-shadow:var(--shadow-hover),0 0 32px rgba(217,20,60,.18),inset 0 1px 0 rgba(255,255,255,.1);
  transform:translateY(-2px);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.btn-primary{
  background:linear-gradient(135deg,#D9143C 0%,#A80E2E 100%);
  color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(217,20,60,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.18),0 12px 40px rgba(217,20,60,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,255,255,.1),0 6px 18px rgba(217,20,60,.3)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text-1);
  border-color:rgba(47,224,192,.45);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--brand-2);box-shadow:0 0 20px rgba(47,224,192,.25);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);box-shadow:0 0 12px rgba(47,224,192,.18)}
.btn-pill{border-radius:999px}
.btn-block{width:100%}

/* 标签 / 徽章 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  border:1px solid rgba(47,224,192,.35);color:var(--brand-2);
  background:rgba(47,224,192,.07);
}
.tag-accent{border-color:rgba(255,176,32,.4);color:var(--accent);background:rgba(255,176,32,.08)}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  font-size:13px;color:var(--text-1);
  border:1px solid rgba(47,224,192,.35);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.badge-pill::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .32s ease,backdrop-filter .32s ease,border-color .32s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;height:76px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(217,20,60,.28),rgba(47,224,192,.14));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.nav-center{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text-1);background:rgba(47,224,192,.1);box-shadow:inset 0 -2px 0 var(--brand-2)}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:210px;padding:10px 16px 10px 38px;
  border-radius:999px;font-size:14px;
  color:var(--text-1);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:border-color .22s ease,box-shadow .22s ease,width .28s ease;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,224,192,.16);width:240px}
.nav-search svg{position:absolute;left:14px;width:15px;height:15px;color:var(--text-3);pointer-events:none}
.nav-login{font-size:14.5px;color:var(--text-2);padding:8px 6px;transition:color .22s ease}
.nav-login:hover{color:var(--brand-2)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:transform .25s ease,background .25s ease}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.drawer-open .nav-toggle span{background:transparent}
body.drawer-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.drawer-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:76px 0 0 0;z-index:70;
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:26px 24px 40px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .26s ease,transform .26s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.mobile-drawer a{
  padding:14px 16px;border-radius:12px;font-size:16px;color:var(--text-1);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.mobile-drawer a.active{border-color:rgba(47,224,192,.5);color:var(--brand-2)}
.mobile-drawer .mobile-actions{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.mobile-search{position:relative;margin-bottom:10px}
.mobile-search input{
  width:100%;padding:13px 16px 13px 40px;border-radius:999px;font-size:15px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);
}
.mobile-search input::placeholder{color:var(--text-3)}
.mobile-search input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,224,192,.16)}
.mobile-search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-3)}

/* Hero */
.hero{position:relative;padding:clamp(48px,6vw,88px) 0 clamp(48px,6vw,84px);overflow:hidden}
.hero::after{
  content:"";position:absolute;top:-180px;right:-160px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(217,20,60,.20),transparent 66%);
  filter:blur(20px);pointer-events:none;z-index:0;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-title{
  font-size:clamp(28px,4.4vw,52px);line-height:1.15;font-weight:800;
  letter-spacing:-.01em;margin:12px 0 18px;color:#fff;text-wrap:balance;
}
.hero-title em{font-style:normal;color:var(--brand-2)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:56ch;margin:0 0 24px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-note{font-size:13.5px;color:var(--text-3)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line-strong);
  box-shadow:0 26px 64px rgba(0,0,0,.55);
}
.hero-media::before{
  content:"";position:absolute;left:26px;right:26px;bottom:-14px;height:32px;
  border-radius:999px;background:rgba(47,224,192,.16);filter:blur(22px);
}

/* 痛点卡 */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
.pain-card{padding:26px 24px}
.pain-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  border:1px solid rgba(47,224,192,.35);color:var(--brand-2);
  background:rgba(47,224,192,.07);margin-bottom:18px;
}
.pain-card h3{font-size:17.5px;font-weight:600;line-height:1.45;margin:0 0 10px;color:var(--text-1)}
.pain-card p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8}

/* 解决方案交错模块 */
.solution-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:38px 0;border-top:1px solid var(--line);
}
.solution-row:first-of-type{border-top:none}
.solution-row.reverse .solution-copy{order:2}
.solution-num{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1px rgba(47,224,192,.55);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.solution-copy h3{font-size:clamp(20px,2.2vw,25px);font-weight:700;margin:0 0 14px;color:var(--text-1)}
.solution-copy p{color:var(--text-2);font-size:15.5px;margin:0 0 18px}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15px;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:3px;background:var(--brand);box-shadow:0 0 10px rgba(217,20,60,.6);
}
.solution-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}

/* 功能区卡片网格 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.feature-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}
.feature-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.feature-body h3{font-size:17.5px;font-weight:600;margin:0;color:var(--text-1);transition:color .22s ease}
.feature-card:hover .feature-body h3{color:var(--brand-2)}
.feature-body p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8}
.feature-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-2);
  display:inline-flex;align-items:center;gap:6px;
}
.feature-link svg{transition:transform .22s ease}
.feature-card:hover .feature-link svg{transform:translateX(3px)}

/* 数据成果区 */
.stats-section{
  position:relative;
  background:linear-gradient(180deg,rgba(11,18,32,.86),rgba(7,11,20,.9));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats-section::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(47,224,192,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,224,192,.07) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse at 50% 40%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 20%,transparent 78%);
}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:42px}
.stat-card{padding:28px 24px;text-align:left}
.stat-num{
  font-size:clamp(30px,3.4vw,44px);font-weight:800;line-height:1.1;
  color:var(--brand-2);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:6px}
.stat-card p{font-size:14px;color:var(--text-2);margin:12px 0 0;line-height:1.75}

/* 资讯列表（CMS 循环区） */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-more-link{font-size:14.5px;font-weight:600;color:var(--brand-2);display:inline-flex;align-items:center;gap:6px}
.news-more-link:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.news-item{display:flex}
.news-link{display:flex;flex-direction:column;width:100%;overflow:hidden;border-radius:var(--radius-card)}
.news-cover{display:block;overflow:hidden;border-bottom:1px solid var(--line)}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.news-link:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:11px;flex:1}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;margin:0;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .22s ease;
}
.news-link:hover .news-title{color:var(--brand-2)}
.news-sum{
  font-size:14px;color:var(--text-2);margin:0;line-height:1.78;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.news-foot .news-detail{color:var(--brand-2);font-weight:600}
.news-empty{
  margin-top:40px;padding:56px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.news-empty p{margin:0;color:var(--text-2);font-size:15px}
.news-empty-icon{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  border:1px solid rgba(47,224,192,.35);color:var(--brand-2);background:rgba(47,224,192,.07);
}

/* 证言 */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.quote-card{padding:30px 26px;display:flex;flex-direction:column;gap:18px;position:relative}
.quote-card::before{
  content:"“";position:absolute;top:14px;right:24px;
  font-size:64px;line-height:1;color:rgba(47,224,192,.22);font-family:Georgia,serif;
}
.quote-card p{font-size:15.5px;color:var(--text-1);margin:0;line-height:1.85}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:auto}
.quote-avatar{
  width:40px;height:40px;border-radius:999px;flex-shrink:0;
  display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,rgba(217,20,60,.85),rgba(168,14,46,.9));
}
.quote-person span{font-size:13.5px;color:var(--text-2)}
.quote-person strong{display:block;font-size:14.5px;color:var(--text-1);font-weight:600}

/* FAQ */
.faq-list{margin-top:40px;display:flex;flex-direction:column;gap:14px}
.faq-item{border-radius:var(--radius-card);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:17px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;color:var(--brand-2);font-size:22px;line-height:1.2;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand-2)}
.faq-answer{padding:0 26px 24px;color:var(--text-2);font-size:15.5px;line-height:1.85}
.faq-answer p{margin:0}

/* CTA */
.cta-section{padding:clamp(56px,7vw,96px) 0}
.cta-box{
  position:relative;overflow:hidden;padding:clamp(34px,4.6vw,60px);
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
}
.cta-box::after{
  content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(47,224,192,.16),transparent 68%);pointer-events:none;
}
.cta-box h2{font-size:clamp(23px,2.8vw,34px);line-height:1.3;font-weight:700;margin:0 0 14px;color:#fff}
.cta-box p{color:var(--text-2);font-size:15.5px;margin:0 0 24px;max-width:52ch}
.cta-form{position:relative;z-index:1;display:flex;flex-direction:column;gap:14px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px}
.field input{
  width:100%;padding:13px 16px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,224,192,.16)}
.form-hint{font-size:12.5px;color:var(--text-3);margin:0}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-1);border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;margin:0;max-width:38ch}
.footer-col h4{
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-3);font-weight:600;margin:0 0 16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--text-2);transition:color .22s ease}
.footer-col a:hover{color:var(--brand-2)}
.footer-contact{font-size:14.5px;color:var(--text-2);margin:0 0 10px}
.footer-contact a{color:var(--brand-2)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand-2)}

/* 正文链接（内页通用，首页少量使用） */
.link-inline{
  color:var(--brand-2);text-decoration:underline;
  text-decoration-thickness:1px;text-underline-offset:4px;
  transition:text-decoration-thickness .2s ease,text-underline-offset .2s ease;
}
.link-inline:hover{text-decoration-thickness:2px;text-underline-offset:5px}

/* 响应式 */
@media (max-width:1279px){
  .pain-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-center,.nav-search,.nav-login{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .solution-row{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .solution-row.reverse .solution-copy{order:0}
  .feature-grid,.news-grid,.quote-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .cta-box{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:639px){
  .container,.container-narrow{padding:0 18px}
  .nav-wrap{height:68px;gap:12px}
  .mobile-drawer{inset:68px 0 0 0}
  .brand-text{font-size:15px}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .hero{padding-top:36px}
  .hero-actions .btn{width:100%}
  .pain-grid,.feature-grid,.news-grid,.quote-grid,.stats-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-item summary{padding:18px 18px;font-size:16px}
  .faq-answer{padding:0 18px 20px}
  .cta-box{padding:28px 20px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: article */
/* 配色推导：米兰的红黑竞技记忆 → 品牌红；赛场夜灯与速度 → 深靛夜蓝底 + 青绿交互色；企业站需可信克制 → 暖金仅作徽章点缀。 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.10);
  --brand:#D9143C;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--text-1);
  font-family:var(--font-sans);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(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 76%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 76%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
::selection{background:rgba(217,20,60,.42);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070B14}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,192,.45)}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px}
header,main,footer{position:relative;z-index:1}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(7,11,20,.72);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(217,20,60,.28),rgba(47,224,192,.16));
  border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-center{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  transition:color .2s,background .2s,box-shadow .2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.nav-link.active{
  color:var(--text-1);background:rgba(47,224,192,.10);
  box-shadow:inset 0 0 0 1px rgba(47,224,192,.35);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search input{
  width:210px;padding:9px 16px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-1);
  font-size:13.5px;outline:none;transition:border-color .25s,box-shadow .25s,width .25s;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,224,192,.18);width:238px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:0;cursor:pointer;
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,#D9143C,#A80E2E);
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(217,20,60,.35);
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.16),0 12px 40px rgba(217,20,60,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,255,255,.12),0 6px 18px rgba(217,20,60,.32)}
.btn-primary.btn-sm{padding:9px 18px;font-size:14px;border-radius:999px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:var(--r-btn);cursor:pointer;font-size:15px;
  color:var(--text-1);background:transparent;border:1px solid rgba(47,224,192,.45);
  transition:box-shadow .25s,border-color .25s,color .25s,transform .2s;
}
.btn-ghost:hover{border-color:var(--brand-2);box-shadow:0 0 20px rgba(47,224,192,.25);transform:translateY(-1px)}
.btn-ghost.btn-sm{padding:9px 16px;font-size:14px;border-radius:999px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{
  display:none;position:fixed;inset:74px 0 0 0;z-index:55;
  background:rgba(7,11,20,.97);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:24px 22px 40px;overflow-y:auto;
}
.nav-drawer.open{display:block;animation:drawerIn .22s ease}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.nav-drawer a.drawer-link{
  display:block;padding:14px 16px;border-radius:12px;font-size:16px;color:var(--text-1);
  border:1px solid transparent;
}
.nav-drawer a.drawer-link:hover{border-color:var(--line);background:var(--panel)}
.nav-drawer a.drawer-link.active{background:rgba(47,224,192,.10);box-shadow:inset 0 0 0 1px rgba(47,224,192,.35)}
.drawer-search{margin:6px 0 18px}
.drawer-search input{
  width:100%;padding:12px 18px;border-radius:999px;background:var(--panel);
  border:1px solid var(--line);color:var(--text-1);outline:none;
}
.drawer-search input:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,224,192,.18)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.drawer-actions .btn-primary,.drawer-actions .btn-ghost{width:100%}

/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.28}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.62) 0%,rgba(7,11,20,.88) 55%,var(--bg-0) 100%);
}
.article-hero .container{position:relative;z-index:2;padding-top:32px;padding-bottom:56px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--brand-2);
  background:rgba(47,224,192,.08);border:1px solid rgba(47,224,192,.32);
}
.article-hero h1{
  margin:18px 0 14px;font-size:clamp(28px,4.4vw,52px);line-height:1.15;
  font-weight:800;letter-spacing:-.01em;max-width:900px;
}
.article-lead{max-width:820px;color:var(--text-2);font-size:16.5px;line-height:1.85}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:13px;color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}
.article-meta strong{color:var(--text-1);font-weight:600}

/* ============ 布局 ============ */
.page-body{padding:56px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
}
.article-main{padding:38px 44px 46px;max-width:840px}
.section-label{
  display:inline-block;font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand-2);font-weight:600;
}
.article-body{font-size:17px;line-height:1.9;color:#D6DEEB;max-width:72ch}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:var(--text-1);
  margin:2.4em 0 .8em;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--text-1);margin:1.8em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--text-1);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand-2);font-weight:600}
.article-body a{
  color:var(--brand-2);text-decoration:underline;
  text-decoration-thickness:1px;text-underline-offset:3px;transition:text-decoration-thickness .15s;
}
.article-body a:hover{text-decoration-thickness:2px}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--brand-2);
  background:var(--panel);border-radius:12px;color:var(--text-2);font-size:16px;
}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;box-shadow:0 14px 38px rgba(0,0,0,.4)}
.article-body figure figcaption{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:-.6em}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border-radius:12px;overflow:hidden}
.article-body th{
  background:rgba(47,224,192,.09);color:var(--brand-2);text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--line);font-weight:600;
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.028)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;
  font-size:.92em;color:#FFD79A;
}
.article-body pre{
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow:auto;margin:1.4em 0;
}
.article-body pre code{background:none;padding:0;color:#E6EDF7}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:98px;display:flex;flex-direction:column;gap:18px}
.aside-card{padding:22px 22px 24px}
.aside-card h3{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:14px}
.aside-list li+li{margin-top:2px}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  transition:background .2s,color .2s;
}
.aside-list a:hover{background:rgba(255,255,255,.06);color:var(--brand-2)}
.aside-list a::after{content:"→";color:var(--text-3);font-size:13px}
.aside-list a:hover::after{color:var(--brand-2)}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.75;margin-top:12px}

/* ============ 空态 ============ */
.empty-state{
  padding:48px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
}
.empty-state .icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;
  background:rgba(47,224,192,.08);border:1px solid rgba(47,224,192,.28);color:var(--brand-2);
  font-size:22px;
}
.empty-state p{color:var(--text-2);font-size:15.5px;margin-bottom:18px}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-top:10px}
.section-head p{color:var(--text-2);font-size:15px;max-width:620px;margin-top:10px}
.link-more{color:var(--brand-2);font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(217,20,60,.32);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 22px 56px rgba(0,0,0,.5),0 0 32px rgba(217,20,60,.18)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--text-1);transition:color .2s}
.post-card:hover h3{color:var(--brand-2)}
.post-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);margin-top:auto;padding-top:6px}

/* ============ FAQ ============ */
.faq-section{padding:72px 0 0}
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--panel);
  overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.faq-item[open]{border-color:rgba(47,224,192,.35);box-shadow:0 0 26px rgba(47,224,192,.12)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;gap:14px;
  font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"+";flex:0 0 26px;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  color:var(--brand-2);background:rgba(47,224,192,.10);border:1px solid rgba(47,224,192,.30);
  font-size:15px;line-height:1;transition:transform .2s;
}
.faq-item[open] summary::before{content:"−";transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 22px 20px 62px;color:var(--text-2);font-size:15.5px;line-height:1.85}

/* ============ CTA ============ */
.cta-section{padding:80px 0 0}
.cta-box{
  position:relative;overflow:hidden;border-radius:24px;padding:56px 48px;
  border:1px solid rgba(47,224,192,.22);
  background:linear-gradient(135deg,rgba(217,20,60,.16),rgba(11,18,32,.9) 46%,rgba(47,224,192,.12));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 24px 64px rgba(0,0,0,.5);
}
.cta-box::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px);
  opacity:.6;
}
.cta-box .inner{position:relative;z-index:2;max-width:760px}
.cta-box h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;margin:12px 0 14px}
.cta-box p{color:var(--text-2);font-size:16px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,11,20,.95));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li+li{margin-top:10px}
.footer-col ul a{font-size:14.5px;color:var(--text-2);transition:color .2s}
.footer-col ul a:hover{color:var(--brand-2)}
.footer-contact{font-size:14.5px;color:var(--text-2);margin-bottom:10px;line-height:1.7}
.footer-contact a{color:var(--text-2)}
.footer-contact a:hover{color:var(--brand-2)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-grid > div:last-child{grid-column:1 / -1}
}
@media (max-width:1023px){
  .container{padding:0 22px}
  .nav-center{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:68px;gap:12px}
  .nav-drawer{inset:68px 0 0 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .article-main{padding:30px 26px 36px;max-width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-box{padding:44px 30px}
  .article-hero .container{padding-top:24px;padding-bottom:44px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 32px}
  .footer-grid > div:first-child{grid-column:1 / -1}
  .footer-grid > div:last-child{grid-column:1 / -1}
  .page-body{padding:36px 0 0}
  .related,.faq-section{padding-top:56px}
  .cta-section{padding-top:60px;padding-bottom:0}
  .site-footer{margin-top:70px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .brand-text{font-size:14.5px}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .article-main{padding:24px 18px 30px}
  .article-body{font-size:16px}
  .article-body h2{padding-left:10px;border-left-width:2px}
  .faq-item summary{padding:16px 16px;font-size:15.5px;gap:10px}
  .faq-item .faq-answer{padding:0 16px 18px 52px;font-size:15px}
  .cta-box{padding:34px 20px;border-radius:18px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
/* 配色推导：米兰对应红黑竞技记忆与城市克制感，体育对应赛场夜灯与速度，
   企业站要求可信不浮夸 —— 深靛夜蓝打底，米兰红作品牌主色，赛场青绿作数据与交互辅色，暖金仅作微量点缀。 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.10);
  --brand:#D9143C;
  --brand-deep:#A80E2E;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --glow-brand:0 0 32px rgba(217,20,60,.18);
  --glow-mint:0 0 20px rgba(47,224,192,.25);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(115deg,rgba(255,255,255,.020) 0 1px,transparent 1px 68px),
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:auto,64px 64px,64px 64px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px}
::selection{background:rgba(217,20,60,.4);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#080d18}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,192,.35)}

.site-header,main,.site-footer{position:relative;z-index:1}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.narrow{max-width:760px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(217,20,60,.22),rgba(47,224,192,.10));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-center{
  display:none;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{
  color:#fff;
  background:rgba(47,224,192,.12);
  box-shadow:inset 0 0 0 1px rgba(47,224,192,.35);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  transform:translateX(-50%);
  width:16px;height:2px;
  border-radius:2px;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(47,224,192,.6);
}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-box{
  display:none;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:rgba(47,224,192,.55);
  box-shadow:var(--glow-mint);
}
.search-box input{
  width:170px;
  background:transparent;
  border:0;
  outline:none;
  font-size:14px;
  color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3)}
.link-login{
  display:none;
  padding:8px 10px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .2s ease;
}
.link-login:hover{color:var(--brand-2)}
.menu-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--panel);
  border:1px solid var(--line);
  cursor:pointer;
}
.menu-toggle:hover{border-color:rgba(47,224,192,.4)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(217,20,60,.35);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,255,255,.16),0 12px 40px rgba(217,20,60,.5);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 0 0 1px rgba(255,255,255,.10),0 6px 16px rgba(217,20,60,.32);
}
.btn-ghost{
  background:var(--panel);
  color:var(--text-1);
  border-color:rgba(47,224,192,.4);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{
  border-color:var(--brand-2);
  color:#fff;
  box-shadow:var(--glow-mint);
  transform:translateY(-1px);
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-pill{border-radius:999px}
.header-cta{display:none}

/* 移动端抽屉 */
.mobile-drawer{
  display:none;
  padding:0 20px 24px;
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
}
.mobile-drawer.open{display:block}
.mobile-drawer .search-box{display:flex;width:100%;margin:14px 0 6px}
.mobile-drawer .search-box input{width:100%}
.mobile-drawer a.drawer-link{
  display:block;
  padding:13px 4px;
  font-size:15.5px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer a.drawer-link.active{color:var(--brand-2)}
.mobile-drawer .btn{width:100%;margin-top:16px}

@media(min-width:640px){
  .header-cta{display:inline-flex}
}
@media(min-width:1024px){
  .nav-center{display:flex}
  .search-box{display:flex}
  .link-login{display:inline-block}
  .menu-toggle{display:none}
  .mobile-drawer{display:none !important}
  .header-inner{min-height:78px}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 60px;
  background-image:
    linear-gradient(115deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.78) 46%,rgba(7,11,20,.62) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:36px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand-2);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--brand-2);
  box-shadow:0 0 8px rgba(47,224,192,.7);
}
h1{
  font-size:clamp(28px,4.4vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:62ch;
  margin-bottom:24px;
}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--brand-2);
  border:1px solid rgba(47,224,192,.35);
  background:rgba(47,224,192,.06);
}
.badge.gold{color:var(--accent);border-color:rgba(255,176,32,.35);background:rgba(255,176,32,.06)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative}
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  background:var(--bg-1);
  box-shadow:var(--shadow-card);
}
.media img{width:100%;height:100%;object-fit:cover}
.ratio-16-9{aspect-ratio:16/9}
.ratio-4-3{aspect-ratio:4/3}
.hero-media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:46%;
  background:linear-gradient(to top,rgba(7,11,20,.72),transparent);
  pointer-events:none;
}
@media(min-width:1024px){
  .hero{padding:78px 0 88px}
  .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1024px){.section{padding:112px 0}}
.section-label{
  font-size:12.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brand-2);
  margin-bottom:12px;
}
.section-title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  margin-bottom:14px;
}
.section-desc{
  color:var(--text-2);
  max-width:70ch;
  font-size:16px;
}
.section-head{margin-bottom:36px}
@media(min-width:768px){.section-head{margin-bottom:48px}}

/* ---------- 锚点 + 长列表 ---------- */
.layout-anchor{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
}
.anchor-nav{
  display:none;
}
@media(min-width:1024px){
  .layout-anchor{grid-template-columns:250px minmax(0,1fr);gap:56px}
  .anchor-nav{
    display:block;
    align-self:start;
    position:sticky;
    top:104px;
    padding:22px 20px;
    border-radius:var(--r-card);
    background:var(--panel);
    border:1px solid var(--line);
    backdrop-filter:blur(20px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  }
}
.anchor-nav h2{
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-3);
  margin-bottom:14px;
}
.anchor-nav a{
  display:block;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:10px;
  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(255,255,255,.05);
  border-left-color:var(--brand-2);
}
.entry-list{display:grid;gap:22px}
.entry{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:20px;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.entry:hover{
  transform:translateY(-2px);
  border-color:rgba(217,20,60,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card),var(--glow-brand);
}
.entry-index{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--brand-2);
  margin-bottom:8px;
}
.entry h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:10px;
}
.entry p{color:var(--text-2);font-size:15.5px}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14.5px;
  color:var(--brand-2);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:4px;
  transition:text-decoration-thickness .2s ease,color .2s ease;
}
.text-link:hover{text-decoration-thickness:2px}
@media(min-width:1024px){
  .entry{grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:28px;align-items:center}
  .entry.reverse{grid-template-columns:minmax(0,1fr) minmax(0,300px)}
  .entry.reverse .entry-media{order:2}
}

/* ---------- 数据卡 ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:18px;
}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-card{
  padding:24px 22px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.stat-card:hover{border-color:rgba(47,224,192,.32);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card),var(--glow-mint)}
.stat-icon{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  border:1px solid rgba(47,224,192,.3);
  color:var(--brand-2);
  margin-bottom:16px;
}
.stat-num{
  font-size:34px;
  font-weight:800;
  color:var(--brand-2);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  margin-bottom:6px;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.stat-card p{color:var(--text-2);font-size:14.5px;margin:0}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:18px}
@media(min-width:768px){.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.scene-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.scene-card{
  display:flex;
  flex-direction:column;
  padding:26px 24px;
  border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{
  transform:translateY(-2px);
  border-color:rgba(217,20,60,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card),var(--glow-brand);
}
.scene-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.scene-card p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tag{
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--brand-2);
  border:1px solid rgba(47,224,192,.28);
  background:rgba(47,224,192,.05);
}
.tag.gold{color:var(--accent);border-color:rgba(255,176,32,.3);background:rgba(255,176,32,.05)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:rgba(47,224,192,.3)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  font-size:17px;
  font-weight:500;
  color:var(--brand-2);
  border:1px solid rgba(47,224,192,.35);
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"−";background:rgba(47,224,192,.12)}
.faq-answer{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.8;
  animation:faqIn .2s ease;
}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  padding:40px 24px;
  background:
    linear-gradient(120deg,rgba(217,20,60,.18),rgba(47,224,192,.10)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
@media(min-width:768px){.cta-band{padding:56px 48px}}
.cta-inner{display:grid;gap:32px;grid-template-columns:minmax(0,1fr)}
@media(min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;gap:48px}}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-band p{color:var(--text-2);max-width:56ch}
.form-panel{
  padding:26px 24px;
  border-radius:var(--r-card);
  background:rgba(7,11,20,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.field{margin-bottom:16px}
.field label{
  display:block;
  font-size:13.5px;
  color:var(--text-2);
  margin-bottom:8px;
}
.field input{
  width:100%;
  height:46px;
  padding:0 14px;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-1);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{border-color:var(--brand-2);box-shadow:var(--glow-mint)}
.field-hint{font-size:12.5px;color:var(--text-3);margin-top:8px}
.form-panel .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,11,20,.95));
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14.5px;max-width:42ch}
.footer-col h4{
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-3);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--brand-2)}
.footer-contact{font-size:14px;color:var(--text-2);margin-bottom:10px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-2)}

@media(max-width:520px){
  .hero-actions .btn{width:100%}
  .entry{padding:18px}
}

/* roulang page: category2 */
/* ==========================================================================
   设计变量：深靛夜蓝为底、米兰红为主色、赛场青绿为交互辅色、暖金微量点缀
   ========================================================================== */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#0E1728;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#D9143C;
  --brand-dark:#A80E2E;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --shadow-lift:0 22px 56px rgba(0,0,0,.55);
  --container:1280px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}

/* ------------------------------ 基础 reset ------------------------------ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(115deg,rgba(255,255,255,.028) 0 1px,transparent 1px 26px),
    radial-gradient(circle at 18% 8%,rgba(217,20,60,.12),transparent 46%),
    radial-gradient(circle at 84% 6%,rgba(47,224,192,.10),transparent 48%);
  opacity:.9;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
p{margin:0 0 1.2em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text-1);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(217,20,60,.42);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#05080F;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(217,20,60,.55),rgba(47,224,192,.42));border-radius:999px;border:2px solid #05080F;}

/* ------------------------------ 容器与栅格 ------------------------------ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
  position:relative;
  z-index:1;
}
.container-narrow{max-width:880px;}
.section{padding:76px 0;position:relative;z-index:1;}
.section-tight{padding:56px 0;}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--brand-2);
  margin-bottom:14px;
  font-weight:600;
}
.section-label::before{
  content:"";
  width:22px;
  height:1px;
  background:linear-gradient(90deg,var(--brand-2),transparent);
}
.section-title{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;}
.section-sub{color:var(--text-2);font-size:15.5px;margin-top:14px;max-width:72ch;}
.section-head{margin-bottom:44px;}
.section-head--split{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;}

/* ------------------------------ 顶部导航 ------------------------------ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid var(--line-soft);
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.nav-scrolled{
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(217,20,60,.30),rgba(47,224,192,.14));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text-1);
  white-space:nowrap;
}
.nav-center{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:6px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.active{
  color:var(--text-1);
  background:rgba(47,224,192,.10);
  box-shadow:inset 0 0 0 1px rgba(47,224,192,.30);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),rgba(47,224,192,0));
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search input{
  width:214px;
  height:38px;
  padding:0 38px 0 34px;
  border-radius:999px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{
  outline:none;
  border-color:rgba(47,224,192,.65);
  box-shadow:0 0 0 3px rgba(47,224,192,.16);
  background:rgba(255,255,255,.07);
}
.nav-search .search-icon{
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
  width:15px;
  height:15px;
  color:var(--text-3);
  pointer-events:none;
}
.login-link{padding:0 10px;font-size:14.5px;}
.nav-toggle{
  display:none;
  width:40px;
  height:38px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text-1);
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--text-1);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--text-1);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 移动端抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  padding:18px 20px 26px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-search{margin-bottom:16px;}
.mobile-drawer .drawer-search input{width:100%;}
.mobile-links{display:flex;flex-direction:column;gap:2px;margin-bottom:18px;}
.mobile-links a{
  padding:11px 14px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
}
.mobile-links a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.mobile-links a.active{
  color:var(--text-1);
  background:rgba(47,224,192,.10);
  border-color:rgba(47,224,192,.30);
}
.drawer-actions{display:flex;flex-direction:column;gap:10px;}

/* ------------------------------ 按钮 ------------------------------ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  color:#fff;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(217,20,60,.35);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,255,255,.16),0 12px 40px rgba(217,20,60,.50);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,255,255,.12),0 6px 18px rgba(217,20,60,.32);}
.btn-ghost{
  color:var(--text-1);
  background:var(--panel);
  border:1px solid rgba(47,224,192,.45);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-ghost:hover{
  border-color:rgba(47,224,192,.85);
  box-shadow:0 0 20px rgba(47,224,192,.25),inset 0 1px 0 rgba(255,255,255,.10);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-pill{border-radius:999px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--brand-2);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:4px;
  transition:text-decoration-thickness .18s ease,color .18s ease;
}
.text-link:hover{text-decoration-thickness:2px;color:#7ff2dc;}

/* ------------------------------ Hero ------------------------------ */
.page-hero{
  position:relative;
  padding:64px 0 68px;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,20,.72),rgba(7,11,20,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center right;
  opacity:.85;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(115deg,rgba(255,255,255,.03) 0 1px,transparent 1px 34px);
  opacity:.6;
  pointer-events:none;
  z-index:0;
}
.page-hero .container{z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(47,224,192,.08);
  border:1px solid rgba(47,224,192,.28);
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--brand-2);
  font-weight:600;
  margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(28px,4.4vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:20ch;
}
.hero-lead{
  margin-top:18px;
  font-size:clamp(15.5px,1.5vw,18px);
  color:var(--text-2);
  max-width:58ch;
  line-height:1.8;
}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-1);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(47,224,192,.30);
  letter-spacing:.02em;
}
.badge .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(47,224,192,.8);
}
.badge-gold{border-color:rgba(255,176,32,.38);}
.badge-gold .dot{background:var(--accent);box-shadow:0 0 10px rgba(255,176,32,.75);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-figure{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-card);
}
.hero-figure img{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
  border-radius:var(--radius-img);
}
.hero-figure figcaption{
  padding:14px 18px 16px;
  font-size:13px;
  color:var(--text-2);
  border-top:1px solid var(--line-soft);
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-top:16px;
}
.hero-stat{
  padding:14px 16px;
  border-radius:14px;
  background:var(--panel);
  border:1px solid var(--line);
}
.hero-stat strong{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--brand-2);
  font-variant-numeric:tabular-nums;
}
.hero-stat span{font-size:12.5px;color:var(--text-3);}

/* ------------------------------ 筛选胶囊 ------------------------------ */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:18px 20px;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.filter-label{
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.12em;
  margin-right:4px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 15px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  cursor:default;
  user-select:none;
}
.chip.is-active{
  color:#0A0F1A;
  background:linear-gradient(140deg,var(--brand-2),#22b79c);
  border-color:transparent;
  font-weight:600;
}
.chip.is-disabled{opacity:.62;border-style:dashed;}
.filter-note{
  margin-left:auto;
  font-size:12.5px;
  color:var(--text-3);
}

/* ------------------------------ 卡片系统 ------------------------------ */
.card{
  position:relative;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.card:hover{
  border-color:rgba(217,20,60,.30);
  box-shadow:var(--shadow-lift),0 0 32px rgba(217,20,60,.18),inset 0 1px 0 rgba(255,255,255,.10);
  transform:translateY(-2px);
}
.card-media{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
  border-bottom:1px solid var(--line-soft);
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(47,224,192,.10);
  border:1px solid rgba(47,224,192,.30);
  color:var(--brand-2);
}
.card-icon svg{width:22px;height:22px;}
.card h3{font-size:19px;line-height:1.45;font-weight:600;}
.card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}
.card .card-link{margin-top:auto;padding-top:6px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-2);
  background:rgba(47,224,192,.09);
  border:1px solid rgba(47,224,192,.26);
  width:fit-content;
}
.tag-gold{
  color:var(--accent);
  background:rgba(255,176,32,.09);
  border-color:rgba(255,176,32,.28);
}
.module-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

/* 宽幅特写卡 */
.spotlight{
  margin-top:26px;
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(217,20,60,.10),rgba(255,255,255,.045) 45%,rgba(47,224,192,.08));
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
}
.spotlight figure{margin:0;position:relative;}
.spotlight img{
  width:100%;
  height:100%;
  min-height:280px;
  object-fit:cover;
}
.spotlight-body{
  padding:34px 34px 32px;
  display:flex;
  flex-direction:column;
  gap:14px;
  justify-content:center;
}
.spotlight-body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35;}
.spotlight-body p{color:var(--text-2);font-size:15px;margin:0;}
.spotlight-meta{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:6px;
  padding-top:16px;
  border-top:1px solid var(--line-soft);
}
.spotlight-meta div{font-size:13px;color:var(--text-3);}
.spotlight-meta strong{
  display:block;
  font-size:20px;
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
}

/* ------------------------------ 步骤流程 ------------------------------ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--radius-card);
  background:var(--bg-1);
  border:1px solid var(--line);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.step:hover{border-color:rgba(47,224,192,.36);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-size:13px;
  letter-spacing:.2em;
  color:var(--brand-2);
  font-weight:600;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17.5px;margin-bottom:8px;font-weight:600;}
.step p{margin:0;font-size:14px;color:var(--text-2);line-height:1.8;}

/* ------------------------------ 指标数据卡 ------------------------------ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  padding:34px 30px;
  border-radius:var(--radius-card);
  background:
    linear-gradient(180deg,rgba(47,224,192,.06),rgba(255,255,255,0)),
    var(--bg-1);
  border:1px solid var(--line);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:38px 38px,38px 38px;
}
.metric{padding:8px 4px;}
.metric strong{
  display:block;
  font-size:clamp(30px,3.6vw,42px);
  line-height:1.1;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
  letter-spacing:-.02em;
}
.metric strong em{font-style:normal;font-size:16px;color:var(--text-2);margin-left:4px;font-weight:600;}
.metric.accent strong{color:var(--brand);}
.metric span{display:block;margin-top:10px;font-size:13.5px;color:var(--text-2);}

/* ------------------------------ 适用场景（两列图文） ------------------------------ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene{
  display:flex;
  gap:20px;
  padding:24px;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.scene:hover{border-color:rgba(47,224,192,.34);box-shadow:0 0 28px rgba(47,224,192,.14);}
.scene img{
  width:132px;
  height:100px;
  flex:0 0 132px;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line-soft);
}
.scene h3{font-size:17.5px;margin-bottom:8px;font-weight:600;}
.scene p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ------------------------------ FAQ ------------------------------ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item[open]{border-color:rgba(47,224,192,.34);box-shadow:0 0 26px rgba(47,224,192,.12);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-mark{
  position:relative;
  width:22px;
  height:22px;
  flex:0 0 22px;
  border-radius:50%;
  border:1px solid rgba(47,224,192,.45);
}
.faq-item summary .faq-mark::before,
.faq-item summary .faq-mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  background:var(--brand-2);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-item summary .faq-mark::before{width:10px;height:1.6px;}
.faq-item summary .faq-mark::after{width:1.6px;height:10px;}
.faq-item[open] summary .faq-mark::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-answer{
  padding:0 24px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:76ch;
}
.faq-answer p{margin:0;}

/* ------------------------------ CTA ------------------------------ */
.cta-band{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(217,20,60,.22),rgba(11,18,32,.86) 46%,rgba(47,224,192,.16));
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.09);
  padding:46px 40px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-60px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,192,.24),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  align-items:center;
  justify-content:space-between;
}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);line-height:1.3;max-width:24ch;}
.cta-inner p{margin:12px 0 0;color:var(--text-2);font-size:15px;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ------------------------------ 页脚 ------------------------------ */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(7,11,20,.98));
  padding:56px 0 26px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:40ch;margin:0;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.10em;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease;
}
.footer-col ul a:hover{color:var(--brand-2);}
.footer-contact{font-size:14px;color:var(--text-2);margin:0 0 10px;line-height:1.8;}
.footer-contact a{color:var(--brand-2);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--brand-2);}
.footer-bottom a:hover{text-decoration:underline;}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width:1279px){
  .module-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .metrics{grid-template-columns:repeat(4,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-center{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .page-hero h1{max-width:26ch;}
  .module-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .spotlight{grid-template-columns:1fr;}
  .spotlight img{min-height:220px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:767px){
  .section{padding:58px 0;}
  .page-hero{padding:44px 0 52px;}
  .scene-grid{grid-template-columns:1fr;}
  .scene{flex-direction:column;}
  .scene img{width:100%;height:180px;flex:0 0 auto;}
  .cta-band{padding:34px 22px;}
  .filter-note{margin-left:0;width:100%;}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:639px){
  .module-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;gap:18px;padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
/* ===================================================================
   设计变量：底为深靛夜蓝，主色取米兰红，交互辅色取赛场青绿，
   暖金仅用于徽章点缀。整体保持企业站的克制与可读性。
   =================================================================== */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.05);
  --panel-2:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.10);
  --brand:#D9143C;
  --brand-deep:#A80E2E;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* 斜向赛道细纹，透明度极低，不干扰正文 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(115deg, rgba(255,255,255,.020) 0 1px, transparent 1px 48px);
}

img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}

::selection{background:rgba(217,20,60,.4);color:#fff}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070B14}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,192,.45)}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

.site-header,.site-footer,main{position:relative;z-index:2}

/* ---------------- 排版层级 ---------------- */
h1,.h1{
  font-size:clamp(28px,4.4vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
}
h2,.h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.005em;
}
h3,.h3{font-size:20px;line-height:1.5;font-weight:600}
.lead{font-size:17px;line-height:1.9;color:var(--text-2)}
p{color:var(--text-2)}
.section-label{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.18em;
  color:var(--brand-2);
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:14px;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{color:var(--text-1);margin-bottom:14px}

section{position:relative}
.py-section{padding:80px 0}
@media(min-width:768px){.py-section{padding:112px 0}}

.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------------- 导航 ---------------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.78);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;
  border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(47,224,192,.16),rgba(217,20,60,.22));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap}

.nav-center{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:12px;
  flex:1;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text-1);background:rgba(47,224,192,.10)}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),rgba(47,224,192,0));
}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  border-color:rgba(47,224,192,.6);
  box-shadow:0 0 0 3px rgba(47,224,192,.14);
}
.nav-search svg{flex-shrink:0;opacity:.7}
.nav-search input{
  background:transparent;border:0;outline:none;
  width:150px;font-size:14px;color:var(--text-1);
}
.nav-search input::placeholder{color:var(--text-3)}
.link-btn{
  font-size:14.5px;color:var(--text-2);
  padding:8px 10px;border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.link-btn:hover{color:var(--text-1);background:rgba(255,255,255,.05)}

.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--panel);
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.menu-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;
  background:var(--text-1);position:relative;
}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,11,20,.97);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  padding:24px;
  display:none;
}
.drawer.open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:22px;line-height:1;cursor:pointer;
}
.drawer nav{display:flex;flex-direction:column;gap:8px;margin-bottom:28px}
.drawer nav a{
  padding:14px 16px;border-radius:14px;
  background:var(--panel-2);border:1px solid var(--line);
  font-size:16px;
}
.drawer nav a.active{border-color:rgba(47,224,192,.5);color:var(--brand-2)}
.drawer .nav-search{width:100%;margin-bottom:16px}
.drawer .nav-search input{width:100%}
.drawer-actions{display:flex;flex-direction:column;gap:12px}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px}
.btn-sm{padding:10px 18px;font-size:14px}

.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(217,20,60,.35);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,255,255,.16),0 12px 40px rgba(217,20,60,.5);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,255,255,.12),0 6px 18px rgba(217,20,60,.32)}

.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(47,224,192,.38);
  color:var(--text-1);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{
  border-color:var(--brand-2);
  color:#fff;
  box-shadow:0 0 20px rgba(47,224,192,.25);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);box-shadow:none}

.btn-pill{border-radius:999px}
.btn-block{width:100%}

/* ---------------- 徽章 / 标签 ---------------- */
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--brand-2);
  border:1px solid rgba(47,224,192,.32);
  background:rgba(47,224,192,.06);
  letter-spacing:.02em;
}
.badge-gold{color:var(--accent);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.07)}
.tag{
  display:inline-block;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-2);
  background:rgba(47,224,192,.08);
  border:1px solid rgba(47,224,192,.24);
}

/* ---------------- Hero ---------------- */
.hero{padding:64px 0 72px;overflow:hidden}
@media(min-width:768px){.hero{padding:84px 0 96px}}
.hero-grid{display:grid;gap:48px;align-items:center}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:64px}
}
.hero-sub{font-size:18px;color:var(--text-2);margin-top:18px;max-width:52ch}
.hero-copy p.hero-sub{color:var(--text-2)}
.hero-note{font-size:13.5px;color:var(--text-3);margin-top:20px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}
@media(max-width:640px){.hero-actions .btn{width:100%}}

.hero-media{position:relative}
.hero-img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-float{
  position:absolute;
  left:-8px;bottom:-22px;
  background:rgba(11,18,32,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 18px;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  min-width:200px;
}
.hero-float .k{font-size:12px;color:var(--text-3);letter-spacing:.1em}
.hero-float .v{font-size:28px;font-weight:800;color:var(--brand-2);line-height:1.2;margin-top:2px}
@media(max-width:640px){
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto}
}

/* ---------------- 玻璃卡 ---------------- */
.glass{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.glass:hover{
  border-color:rgba(217,20,60,.30);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08),0 0 32px rgba(217,20,60,.18);
  transform:translateY(-2px);
}
.card-pad{padding:26px}
.card-ico{
  width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;
  border:1px solid rgba(47,224,192,.3);
  background:rgba(47,224,192,.07);
  margin-bottom:18px;
}
.card-ico svg{stroke:var(--brand-2)}
.card-title{margin-bottom:10px;color:var(--text-1)}
.card-text{font-size:15px;color:var(--text-2);line-height:1.85}
.card-media{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  margin-bottom:20px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;color:var(--brand-2);
  margin-top:16px;
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,gap .2s ease;
}
.text-link:hover{border-bottom-color:var(--brand-2);gap:10px}
a.inline-link{
  color:var(--brand-2);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:text-decoration-thickness .15s ease;
}
a.inline-link:hover{text-decoration-thickness:2px}

/* ---------------- 步骤轴 ---------------- */
.steps-layout{display:grid;gap:48px}
@media(min-width:1024px){
  .steps-layout{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:56px;align-items:start}
}
.timeline{position:relative}
.tl-item{position:relative;padding-left:66px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;left:21px;top:46px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(47,224,192,.5),rgba(47,224,192,.08));
}
.tl-item:last-child::before{display:none}
.tl-node{
  position:absolute;left:0;top:0;
  width:44px;height:44px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
  background:var(--bg-1);
  border:2px solid rgba(47,224,192,.55);
  box-shadow:0 0 18px rgba(47,224,192,.35),inset 0 1px 0 rgba(255,255,255,.08);
}
.tl-card{padding:22px 24px}
.tl-card h3{margin-bottom:8px;color:var(--text-1)}
.tl-card .card-text{font-size:15px}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:8px 16px;
  margin-top:14px;font-size:13px;color:var(--text-3);
}
.tl-meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);display:inline-block}

.side-stack{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.side-stack{position:sticky;top:100px}}
.stat-card{padding:22px 24px}
.stat-card .k{font-size:12.5px;letter-spacing:.12em;color:var(--text-3)}
.stat-card .v{
  font-size:38px;font-weight:800;line-height:1.15;margin:6px 0 4px;
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
}
.stat-card .v.brand{color:var(--brand)}
.stat-card .d{font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ---------------- 清单 ---------------- */
.check-list{display:flex;flex-direction:column;gap:14px}
.check-list li{
  display:flex;gap:12px;
  padding:14px 16px;
  border-radius:14px;
  background:var(--panel-2);
  border:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.check-list li svg{flex-shrink:0;margin-top:5px}
.check-list strong{color:var(--text-1);font-weight:600}

/* ---------------- 对照表 ---------------- */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--panel-2);
}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{
  text-align:left;
  padding:16px 20px;
  font-size:13px;letter-spacing:.1em;
  color:var(--brand-2);
  font-weight:600;
  background:rgba(255,255,255,.04);
}
tbody td{padding:16px 20px;color:var(--text-2);border-top:1px solid var(--line)}
tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
tbody td:first-child{color:var(--text-1);font-weight:600}

/* ---------------- FAQ ---------------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);
  border-radius:16px;
  background:var(--panel-2);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{
  border-color:rgba(47,224,192,.35);
  box-shadow:0 0 24px rgba(47,224,192,.10);
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-size:22px;line-height:1;
  color:var(--brand-2);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{
  padding:0 22px 20px;
  font-size:16px;line-height:1.8;color:var(--text-2);
  max-width:72ch;
}

/* ---------------- CTA ---------------- */
.cta-band{
  border:1px solid var(--line);
  border-radius:24px;
  padding:40px;
  background:
    radial-gradient(120% 160% at 88% 0%, rgba(47,224,192,.14), transparent 60%),
    radial-gradient(110% 150% at 0% 100%, rgba(217,20,60,.20), transparent 62%),
    var(--bg-1);
  box-shadow:var(--shadow-card);
  display:grid;gap:28px;
}
@media(min-width:900px){
  .cta-band{grid-template-columns:1.4fr 1fr;align-items:center;padding:52px}
}
.cta-band h2{margin-bottom:12px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:640px){
  .cta-band{padding:28px 22px}
  .cta-actions .btn{width:100%}
}

/* ---------------- 页脚 ---------------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:64px 0 28px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  gap:36px;
  grid-template-columns:1fr;
}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.35fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14.5px;color:var(--text-2);max-width:38ch;line-height:1.85}
.footer-col h4{
  font-size:14px;letter-spacing:.1em;
  color:var(--text-1);margin-bottom:16px;font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand-2)}
.footer-contact{font-size:14.5px;color:var(--text-2);margin-bottom:10px}
.footer-contact a{color:var(--brand-2)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ---------------- 响应式导航 ---------------- */
@media(max-width:1180px){
  .nav-search{display:none}
}
@media(max-width:1023px){
  .nav-center{display:none}
  .menu-toggle{display:flex}
  .header-inner{justify-content:space-between}
  .header-actions .link-btn{display:none}
}
@media(max-width:560px){
  .container{padding:0 18px}
  .brand-text{font-size:15px}
  .header-actions .btn-primary{display:none}
}
@media(max-width:640px){
  table,thead,tbody,tr,td,th{display:block}
  thead{display:none}
  tbody tr{
    border-top:1px solid var(--line);
    padding:14px 16px;
  }
  tbody td{border:0;padding:6px 0}
  tbody td:first-child{font-size:16px;margin-bottom:4px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
/* 设计变量：深靛夜蓝打底，米兰红作品牌主色，赛场青绿作数据与交互辅色，暖金仅少量点缀 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#D9143C;
  --brand-deep:#A80E2E;
  --brand-2:#2FE0C0;
  --accent:#FFB020;
  --text-1:#EAF0FA;
  --text-2:#93A4BD;
  --text-3:#64748B;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 18px 48px rgba(0,0,0,.45);
  --shadow-brand:0 0 0 1px rgba(255,255,255,.12), 0 10px 30px rgba(217,20,60,.35);
  --font-stack:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
}
*,*::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:
    radial-gradient(1100px 620px at 12% -8%, rgba(217,20,60,.16), transparent 62%),
    radial-gradient(900px 560px at 92% 4%, rgba(47,224,192,.10), transparent 60%),
    linear-gradient(180deg,#070B14 0%,#070B14 46%,#080D18 100%);
  color:var(--text-1);
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  min-height:100%;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease, border-color .18s ease, opacity .18s ease;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(217,20,60,.45);color:#fff;}
body::-webkit-scrollbar{width:11px;}
body::-webkit-scrollbar-track{background:#070B14;}
body::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(217,20,60,.7),rgba(47,224,192,.5));border-radius:999px;border:2px solid #070B14;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* 容器 */
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:28px;padding-right:28px;}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}
.container-narrow{max-width:920px;}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,0);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.72);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,rgba(217,20,60,.28),rgba(47,224,192,.16));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.nav-center{display:none;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text-1);background:rgba(47,224,192,.10);box-shadow:inset 0 0 0 1px rgba(47,224,192,.28);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-2),rgba(47,224,192,.2));
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  display:none;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.search-box:focus-within{border-color:rgba(47,224,192,.6);box-shadow:0 0 0 3px rgba(47,224,192,.14);background:var(--panel-strong);}
.search-box input{
  width:168px;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3);}
.btn-ghost-sm{
  display:none;padding:9px 14px;border-radius:var(--radius-btn);
  font-size:14px;color:var(--text-2);
}
.btn-ghost-sm:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);}
.nav-toggle span+span{margin-top:4px;}
.mobile-drawer{
  display:none;padding:18px 0 26px;
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.96);
  backdrop-filter:blur(20px);
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-link{display:block;padding:12px 14px;font-size:15.5px;}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;margin:12px 0 16px;
  padding:10px 14px;border-radius:999px;background:var(--panel);border:1px solid var(--line);
}
.mobile-drawer .drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;}
@media (min-width:1024px){
  .nav-center{display:flex;}
  .search-box{display:flex;}
  .btn-ghost-sm{display:inline-block;}
  .nav-toggle,.mobile-drawer{display:none !important;}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease, box-shadow .22s ease, border-color .2s ease, background-color .2s ease, color .2s ease;
}
.btn-primary{
  color:#fff;border-radius:999px;
  background:linear-gradient(135deg,#D9143C 0%, #A80E2E 100%);
  box-shadow:var(--shadow-brand);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.16), 0 12px 40px rgba(217,20,60,.5);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 6px 18px rgba(217,20,60,.34);}
.btn-primary-sm{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,#D9143C 0%, #A80E2E 100%);
  box-shadow:0 0 0 1px rgba(255,255,255,.12), 0 8px 22px rgba(217,20,60,.34);
  transition:transform .18s ease, box-shadow .22s ease;
}
.btn-primary-sm:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.16), 0 12px 32px rgba(217,20,60,.48);}
.btn-ghost{
  color:var(--text-1);border-radius:999px;
  background:var(--panel);border:1px solid rgba(47,224,192,.45);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(47,224,192,.9);box-shadow:0 0 20px rgba(47,224,192,.25);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-2);}
.link-arrow:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;}
.text-link{color:var(--brand-2);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;text-decoration-color:rgba(47,224,192,.45);}
.text-link:hover{text-decoration-thickness:2px;text-decoration-color:var(--brand-2);}

/* 玻璃卡片 */
.glass{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  transition:border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}
.card-hover:hover{
  transform:translateY(-2px);
  border-color:rgba(217,20,60,.30);
  box-shadow:var(--shadow-card), 0 0 32px rgba(217,20,60,.18), inset 0 1px 0 rgba(255,255,255,.08);
}

/* 通用排版 */
.sec{padding-top:64px;padding-bottom:64px;}
@media (min-width:768px){.sec{padding-top:88px;padding-bottom:88px;}}
@media (min-width:1024px){.sec{padding-top:104px;padding-bottom:104px;}}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brand-2);margin-bottom:14px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(28px,4.4vw,52px);line-height:1.15;font-weight:800;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
.lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:68ch;}
.muted{color:var(--text-2);font-size:14.5px;line-height:1.8;}
.tiny{color:var(--text-3);font-size:13px;line-height:1.7;}
.hr{height:1px;background:var(--line);border:0;margin:0;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  font-size:12.5px;letter-spacing:.04em;
  border:1px solid rgba(47,224,192,.38);
  color:#B9F4E8;background:rgba(47,224,192,.08);
}
.badge-gold{border-color:rgba(255,176,32,.4);color:#FFD79A;background:rgba(255,176,32,.08);}
.badge-red{border-color:rgba(217,20,60,.45);color:#FFB7C6;background:rgba(217,20,60,.10);}

/* Hero */
.hero{position:relative;padding-top:48px;padding-bottom:64px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg, rgba(255,255,255,.028) 0 1px, transparent 1px 14px);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-grid{position:relative;display:grid;gap:36px;align-items:center;}
.hero h1 .hl{
  background:linear-gradient(120deg,#FF6B88 0%, #D9143C 48%, #2FE0C0 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17.5px;line-height:1.7;color:var(--text-2);margin-top:16px;max-width:56ch;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-actions .btn{width:100%;}
.hero-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 26px 60px rgba(0,0,0,.55);
  aspect-ratio:16/9;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 0%, rgba(7,11,20,.62) 100%);
}
.hero-media-caption{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:12.5px;color:rgba(234,240,250,.78);letter-spacing:.04em;
}
@media (min-width:640px){.hero-actions .btn{width:auto;}}
@media (min-width:1024px){
  .hero{padding-top:64px;padding-bottom:88px;}
  .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:52px;}
}

/* 数据条 */
.stat-row{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:34px;}
.stat{
  padding:16px 18px;border-radius:14px;background:var(--panel);
  border:1px solid var(--line);backdrop-filter:blur(16px);
}
.stat b{display:block;font-size:30px;line-height:1.1;color:var(--brand-2);font-weight:800;}
.stat span{font-size:13px;color:var(--text-2);}
@media (min-width:1024px){.stat-row{grid-template-columns:repeat(4,minmax(0,1fr));}}

/* 网格 */
.grid-3{display:grid;gap:22px;grid-template-columns:minmax(0,1fr);}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}}
.grid-4{display:grid;gap:22px;grid-template-columns:minmax(0,1fr);}
@media (min-width:640px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1280px){.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}}

.card{padding:24px;}
.card h3{margin-bottom:10px;}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  border:1px solid rgba(47,224,192,.32);background:rgba(47,224,192,.08);
}

/* 对照表 */
.table-wrap{border-radius:var(--radius-card);border:1px solid var(--line);background:var(--panel);overflow:hidden;backdrop-filter:blur(18px);}
table.cmp{width:100%;border-collapse:collapse;}
table.cmp caption{text-align:left;padding:20px 22px 6px;color:var(--text-2);font-size:14px;}
table.cmp th{
  text-align:left;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand-2);font-weight:700;padding:16px 22px;
  background:rgba(255,255,255,.028);border-bottom:1px solid var(--line);
}
table.cmp td{padding:16px 22px;font-size:14.8px;line-height:1.75;color:var(--text-1);border-bottom:1px solid var(--line-soft);vertical-align:top;}
table.cmp tbody tr:nth-child(even) td{background:rgba(255,255,255,.022);}
table.cmp tbody tr:hover td{background:rgba(217,20,60,.06);}
table.cmp td.col-1{font-weight:600;}
table.cmp td.col-3{color:var(--text-2);font-size:14px;}
@media (max-width:767px){
  table.cmp,table.cmp tbody,table.cmp tr,table.cmp td{display:block;width:100%;}
  table.cmp thead{display:none;}
  table.cmp caption{padding:18px 16px 4px;}
  table.cmp tbody tr{
    margin:0 14px 14px;padding:6px 14px;
    border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);
  }
  table.cmp td{border-bottom:1px dashed rgba(255,255,255,.08);padding:11px 0;font-size:14.5px;background:none !important;}
  table.cmp td:last-child{border-bottom:0;}
  table.cmp td::before{
    content:attr(data-label);display:block;margin-bottom:4px;
    font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-2);
  }
}

/* 步骤轴 */
.steps{position:relative;padding-left:34px;}
.steps::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,rgba(47,224,192,.7),rgba(217,20,60,.4),transparent);}
.step{position:relative;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-34px;top:6px;width:22px;height:22px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #2FE0C0, rgba(47,224,192,.15) 62%, transparent 70%);
  box-shadow:0 0 18px rgba(47,224,192,.55);
}
.step-num{font-size:12.5px;letter-spacing:.16em;color:var(--brand-2);font-weight:700;}
.step h3{margin:6px 0 8px;font-size:19px;}

/* FAQ */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:var(--panel);
  backdrop-filter:blur(16px);overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(47,224,192,.34);box-shadow:0 0 26px rgba(47,224,192,.10);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 56px 18px 20px;position:relative;
  font-size:17px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-2);line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{padding:0 20px 20px;color:var(--text-2);font-size:16px;line-height:1.8;}
.faq-item summary:focus-visible{outline-offset:-3px;}

/* 表单 */
.form-grid{display:grid;gap:18px;grid-template-columns:minmax(0,1fr);}
@media (min-width:768px){.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));} .form-grid .span-2{grid-column:span 2;}}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);outline:none;font-size:15px;
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.field textarea{min-height:126px;resize:vertical;line-height:1.8;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(47,224,192,.65);box-shadow:0 0 0 3px rgba(47,224,192,.15);background:rgba(255,255,255,.07);
}
.field .err{display:none;margin-top:7px;font-size:12.8px;color:#FF7D92;}
.field.has-error input,.field.has-error textarea{border-color:rgba(255,125,146,.6);}
.field.has-error .err{display:block;}
.form-note{font-size:13px;color:var(--text-3);}

/* 场景卡横排 */
.scene-row{display:grid;gap:18px;}
.scene{
  display:grid;gap:16px;padding:18px;border-radius:16px;background:var(--panel);
  border:1px solid var(--line);align-items:center;
  transition:border-color .22s ease, transform .22s ease, box-shadow .22s ease;
}
.scene:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.32);box-shadow:0 0 28px rgba(47,224,192,.12);}
.scene img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);}
.scene h3{margin-bottom:8px;font-size:19px;}
@media (min-width:768px){
  .scene{grid-template-columns:180px minmax(0,1fr);gap:22px;}
  .scene img{aspect-ratio:4/3;}
}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  border:1px solid var(--line);
  background:linear-gradient(135deg, rgba(217,20,60,.18) 0%, rgba(11,18,32,.9) 46%, rgba(47,224,192,.14) 100%);
  padding:34px 24px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(150deg, rgba(255,255,255,.035) 0 1px, transparent 1px 16px);
  pointer-events:none;
}
@media (min-width:768px){.cta-band{padding:52px 48px;}}
.cta-inner{position:relative;display:grid;gap:26px;align-items:center;}
@media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);}}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn{width:100%;}
@media (min-width:640px){.cta-actions .btn{width:auto;}}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:22px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand-2);}
.crumb .sep{color:var(--text-3);}
.crumb .cur{color:var(--text-1);}

/* 页脚 */
.site-footer{
  margin-top:24px;border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(7,11,20,0));
  padding-top:56px;padding-bottom:28px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:minmax(0,1fr);}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:44ch;}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text-1);margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand-2);}
.footer-contact{font-size:14px;color:var(--text-2);margin:0 0 10px;}
.footer-contact a{color:var(--brand-2);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--brand-2);}