/* roulang page: index */
:root{
  --bg:#0a0c12;
  --bg-soft:#0e121b;
  --panel:#141926;
  --panel-2:#1a2133;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.18);
  --text:#eef1f8;
  --muted:#9aa5bd;
  --dim:#6d7891;
  --brand:#ff4d6d;
  --brand-soft:rgba(255,77,109,.14);
  --brand-2:#7b5cff;
  --accent:#2ee6c5;
  --grad:linear-gradient(135deg,#ff4d6d 0%,#7b5cff 100%);
  --r-xs:8px;--r-sm:12px;--r-md:18px;--r-lg:26px;--r-xl:34px;--r-pill:999px;
  --sh-sm:0 6px 18px rgba(0,0,0,.35);
  --sh-md:0 18px 44px rgba(0,0,0,.46);
  --sh-brand:0 14px 34px rgba(255,77,109,.30);
  --w:1180px;
  --gap:24px;
  --sec:clamp(58px,7.5vw,106px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.78;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(920px 520px at 10% -10%,rgba(255,77,109,.16),transparent 62%),
    radial-gradient(860px 540px at 92% 2%,rgba(123,92,255,.16),transparent 64%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.26;font-weight:800;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,77,109,.35);color:#fff}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,18,.84);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:17px;
  box-shadow:0 10px 24px rgba(255,77,109,.34);
}
.brand-text{font-weight:900;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.nav-checkbox{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link:active{transform:translateY(1px)}
.nav-link.is-active{
  color:#fff;background:var(--brand-soft);
  box-shadow:inset 0 0 0 1px rgba(255,77,109,.34);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:6px}
.search{
  display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.search:focus-within{border-color:rgba(255,77,109,.55);background:rgba(255,255,255,.08)}
.search svg{flex:0 0 auto;opacity:.6}
.search input{border:0;background:transparent;outline:none;width:148px;font-size:14px}
.search input::placeholder{color:var(--dim)}
.nav-toggle{
  display:none;width:44px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--line-2)}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-brand{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.09)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--muted);
}
.tag-brand{background:var(--brand-soft);border-color:rgba(255,77,109,.36);color:#ffb0be}
.tag-accent{background:rgba(46,230,197,.12);border-color:rgba(46,230,197,.32);color:#8ff3e0}

/* ============ 首屏 ============ */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(56px,7.5vw,104px) 0 clamp(44px,5.5vw,76px);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 420px at 80% 6%,rgba(123,92,255,.30),transparent 62%),
    radial-gradient(640px 380px at 6% 34%,rgba(255,77,109,.24),transparent 62%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.034) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.034) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(78% 62% at 46% 24%,#000,transparent 76%);
  mask-image:radial-gradient(78% 62% at 46% 24%,#000,transparent 76%);
}
.hero-inner{position:relative;z-index:2;max-width:940px}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.16;letter-spacing:-.02em;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  margin-top:22px;max-width:800px;color:var(--muted);font-size:clamp(15.5px,1.5vw,17px);
}
.hero-points{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px 22px;margin-top:30px;max-width:820px;
}
.hero-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:#d7dcea;
}
.hero-points li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:6px;
  background:var(--grad);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9.6 17.2 4.4 12l1.5-1.5 3.7 3.7 8.5-8.5L19.6 7z'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9.6 17.2 4.4 12l1.5-1.5 3.7 3.7 8.5-8.5L19.6 7z'/></svg>") center/contain no-repeat;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.trust-bar{
  display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:38px;padding-top:24px;
  border-top:1px dashed var(--line-2);
}
.trust-item{
  display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);
}
.trust-item i{
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(46,230,197,.14);flex:0 0 auto;
}

/* ============ 板块容器 ============ */
.section{padding:var(--sec) 0;position:relative}
.band-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:790px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);opacity:.8}
.sec-title{font-size:clamp(23px,2.9vw,35px)}
.sec-desc{margin-top:14px;color:var(--muted);font-size:15.5px}
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ============ 数据看板 ============ */
.stat-card{
  padding:28px 24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,var(--panel),rgba(20,25,38,.55));
  border:1px solid var(--line);box-shadow:var(--sh-sm);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(255,77,109,.4);box-shadow:var(--sh-md)}
.stat-value{
  display:inline-block;font-size:clamp(30px,3.6vw,42px);font-weight:900;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-unit{font-size:14px;color:var(--dim);margin-left:6px;font-weight:700}
.stat-label{margin-top:14px;font-size:15px;font-weight:700}
.stat-note{margin-top:6px;font-size:13.5px;color:var(--dim);line-height:1.7}

/* ============ 线路覆盖 ============ */
.region-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.region-card{
  padding:20px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:background .24s ease,border-color .24s ease,transform .24s ease;
}
.region-card:hover{background:rgba(255,255,255,.06);border-color:var(--line-2);transform:translateY(-3px)}
.region-name{font-size:15.5px;font-weight:800}
.region-meta{margin-top:8px;font-size:13.5px;color:var(--muted)}
.region-speed{margin-top:12px;font-size:13px;color:var(--accent);font-weight:700}

/* ============ 场景卡 ============ */
.scene-card{
  position:relative;padding:28px 24px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.scene-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
  background:var(--grad);opacity:.12;transition:opacity .28s ease;
}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--sh-md);border-color:rgba(123,92,255,.4)}
.scene-card:hover::after{opacity:.22}
.scene-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;font-size:14px;font-weight:900;
  background:var(--brand-soft);color:#ffb0be;border:1px solid rgba(255,77,109,.3);
}
.scene-title{margin-top:16px;font-size:17.5px}
.scene-text{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ============ 左右分栏 ============ */
.split{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:start}
.split-note{
  margin-top:20px;padding:18px 20px;border-radius:var(--r-md);
  background:rgba(46,230,197,.07);border:1px solid rgba(46,230,197,.22);
  font-size:14px;color:#a9f2e4;line-height:1.75;
}
.feature-list{display:grid;gap:12px}
.feature-item{
  display:flex;gap:16px;padding:18px 20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:background .24s ease,transform .24s ease;
}
.feature-item:hover{background:rgba(255,255,255,.07);transform:translateX(4px)}
.feature-idx{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:900;background:rgba(123,92,255,.18);color:#c3b5ff;
  border:1px solid rgba(123,92,255,.32);
}
.feature-title{font-size:15.5px;font-weight:800}
.feature-text{margin-top:6px;font-size:14px;color:var(--muted)}

/* ============ 频道矩阵 ============ */
.channel-card{
  display:flex;flex-direction:column;padding:30px 28px;border-radius:var(--r-lg);
  background:linear-gradient(165deg,var(--panel),rgba(20,25,38,.5));
  border:1px solid var(--line);position:relative;overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.channel-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);opacity:.85;
}
.channel-card:hover{transform:translateY(-6px);border-color:rgba(255,77,109,.4);box-shadow:var(--sh-md)}
.channel-title{margin-top:16px;font-size:20px}
.channel-desc{margin-top:12px;font-size:14.5px;color:var(--muted);flex:1}
.channel-link{
  margin-top:22px;display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:800;color:#ffb0be;
}
.channel-link::after{content:"→";transition:transform .24s ease}
.channel-card:hover .channel-link::after{transform:translateX(4px)}

/* ============ 内容类型 ============ */
.format-card{
  padding:24px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:background .24s ease,transform .24s ease,border-color .24s ease;
}
.format-card:hover{background:rgba(255,255,255,.07);transform:translateY(-4px);border-color:var(--line-2)}
.format-title{font-size:16px;font-weight:800}
.format-text{margin-top:9px;font-size:14px;color:var(--muted)}

/* ============ 对比 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{
  padding:28px 26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.compare-col.is-good{
  background:linear-gradient(165deg,rgba(255,77,109,.10),rgba(123,92,255,.10));
  border-color:rgba(255,77,109,.34);
}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.compare-title{font-size:18px}
.compare-list{margin-top:20px;display:grid;gap:13px}
.compare-item{display:flex;gap:11px;font-size:14.5px;color:var(--muted)}
.compare-item::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--dim);
}
.compare-col.is-good .compare-item{color:#e3e7f4}
.compare-col.is-good .compare-item::before{background:var(--brand);box-shadow:0 0 0 3px rgba(255,77,109,.18)}

/* ============ 里程碑 ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(255,77,109,.7),rgba(123,92,255,.55),transparent);
}
.timeline-item{position:relative;padding:0 0 26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:-27px;top:7px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(255,77,109,.14);
}
.timeline-title{font-size:16.5px;font-weight:800}
.timeline-text{margin-top:7px;font-size:14.5px;color:var(--muted)}
.timeline-stamp{margin-top:8px;font-size:12.5px;color:var(--dim);letter-spacing:.06em}

/* ============ 排行列表 ============ */
.rank-panel{
  border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(180deg,var(--panel),rgba(20,25,38,.45));
}
.rank-item{
  display:flex;align-items:center;gap:20px;padding:20px 26px;
  border-bottom:1px solid var(--line);transition:background .22s ease;
}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:rgba(255,255,255,.045)}
.rank-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:15px;font-weight:900;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--muted);
}
.rank-item:nth-child(1) .rank-no{background:var(--grad);color:#fff;border-color:transparent}
.rank-body{flex:1;min-width:0}
.rank-title{font-size:16px;font-weight:800}
.rank-meta{margin-top:6px;font-size:13px;color:var(--dim)}
.rank-tags{display:flex;gap:8px;flex-wrap:wrap;flex:0 0 auto}
.more-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-size:14.5px;font-weight:800;color:#ffb0be;
}
.more-link::after{content:"→";transition:transform .24s ease}
.more-link:hover::after{transform:translateX(5px)}

/* ============ 资讯 ============ */
.news-item{
  padding:24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:background .24s ease,transform .24s ease,border-color .24s ease;
}
.news-item:hover{background:rgba(255,255,255,.07);transform:translateY(-4px);border-color:var(--line-2)}
.news-date{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.news-title{margin-top:12px;font-size:16.5px}
.news-text{margin-top:10px;font-size:14px;color:var(--muted)}

/* ============ 保障条 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.guard-item{
  display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .24s ease,background .24s ease;
}
.guard-item:hover{border-color:rgba(46,230,197,.4);background:rgba(46,230,197,.06)}
.guard-mark{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-size:15px;font-weight:900;color:#8ff3e0;background:rgba(46,230,197,.13);
  border:1px solid rgba(46,230,197,.3);
}
.guard-title{font-size:15px;font-weight:800}
.guard-text{margin-top:3px;font-size:13px;color:var(--dim)}

/* ============ 口碑 ============ */
.voice-card{
  padding:28px 26px;border-radius:var(--r-lg);
  background:linear-gradient(165deg,var(--panel),rgba(20,25,38,.5));
  border:1px solid var(--line);display:flex;flex-direction:column;
  transition:transform .28s ease,box-shadow .28s ease;
}
.voice-card:hover{transform:translateY(-5px);box-shadow:var(--sh-md)}
.voice-text{font-size:15px;color:#dde2f0;flex:1}
.voice-who{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted)}

/* ============ 快速解答 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.quick-item{
  padding:24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-left:3px solid rgba(123,92,255,.7);
}
.quick-q{font-size:15.5px;font-weight:800}
.quick-a{margin-top:9px;font-size:14px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(255,255,255,.03);overflow:hidden;
  transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(255,77,109,.38);background:rgba(255,77,109,.06)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  font-size:15.5px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--brand);
  transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{background:rgba(255,255,255,.05)}
.faq-answer{padding:0 24px 22px;font-size:14.5px;color:var(--muted)}

/* ============ 转化区 ============ */
.join-panel{
  position:relative;overflow:hidden;
  padding:clamp(34px,4.4vw,56px);border-radius:var(--r-xl);
  background:linear-gradient(150deg,rgba(255,77,109,.16),rgba(123,92,255,.16));
  border:1px solid rgba(255,255,255,.14);
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.join-panel::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,197,.22),transparent 68%);pointer-events:none;
}
.join-title{font-size:clamp(22px,2.7vw,32px)}
.join-desc{margin-top:16px;font-size:15px;color:#dfe4f2}
.join-points{margin-top:22px;display:grid;gap:10px}
.join-points li{display:flex;gap:10px;font-size:14px;color:#d5dbeb}
.join-points li::before{content:"◆";color:var(--accent);font-size:11px;margin-top:6px}
.join-form{position:relative;z-index:2}
.join-row{display:flex;gap:12px;flex-wrap:wrap}
.join-input{
  flex:1 1 220px;min-width:0;padding:15px 20px;border-radius:var(--r-pill);
  background:rgba(10,12,18,.6);border:1px solid rgba(255,255,255,.22);
  color:var(--text);outline:none;font-size:15px;
  transition:border-color .22s ease,background .22s ease;
}
.join-input::placeholder{color:var(--dim)}
.join-input:focus{border-color:var(--brand);background:rgba(10,12,18,.8)}
.join-msg{margin-top:14px;font-size:13.5px;color:var(--muted);min-height:20px}
.join-msg.is-on{color:#8ff3e0}
.join-note{margin-top:16px;font-size:13px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:64px 0 30px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-desc{margin-top:16px;font-size:14px;color:var(--muted);max-width:330px}
.footer-domain{margin-top:16px;font-size:12.5px;color:var(--dim);letter-spacing:.04em}
.footer-col h4{font-size:14.5px;font-weight:800;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a:hover{color:var(--muted)}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .region-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:34px}
  .join-panel{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:960px){
  .header-inner{height:68px;gap:12px}
  .search{display:none}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:68px;margin:0;display:none;
    background:var(--panel);border-bottom:1px solid var(--line);
    padding:14px 24px 22px;box-shadow:var(--sh-md);
  }
  .nav-checkbox:checked ~ .nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{padding:13px 14px;border-radius:12px;font-size:15px}
  .header-tools{margin-left:auto}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero-points{grid-template-columns:1fr}
  .grid-2,.grid-3,.grid-4,.region-grid,.guard-grid,.quick-grid,.compare-grid{grid-template-columns:1fr}
  .rank-item{flex-wrap:wrap;gap:12px;padding:18px}
  .rank-tags{width:100%}
  .footer-top{grid-template-columns:1fr}
  .sec-head{margin-bottom:32px}
  .join-panel{padding:30px 22px}
  .btn-lg{padding:14px 26px;font-size:15px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px}
  .hero{padding-top:44px}
  .hero-actions .btn{width:100%}
  .trust-bar{gap:12px 18px}
  .compare-col,.scene-card,.voice-card{padding:22px 20px}
  .rank-panel{border-radius:var(--r-md)}
}

/* roulang page: category2 */
/* ===== roulang 设计系统：category2 ===== */
:root{
  --bg:#0a0c12;
  --bg-soft:#0e121b;
  --panel:#141926;
  --panel-2:#1a2133;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.18);
  --text:#eef1f8;
  --muted:#9aa5bd;
  --dim:#6d7891;
  --brand:#ff4d6d;
  --brand-soft:rgba(255,77,109,.14);
  --brand-2:#7b5cff;
  --accent:#2ee6c5;
  --grad:linear-gradient(135deg,#ff4d6d 0%,#7b5cff 100%);
  --r-xs:8px;--r-sm:12px;--r-md:18px;--r-lg:26px;--r-xl:34px;--r-pill:999px;
  --sh-sm:0 6px 18px rgba(0,0,0,.35);
  --sh-md:0 18px 44px rgba(0,0,0,.46);
  --sh-brand:0 14px 34px rgba(255,77,109,.30);
  --w:1180px;
  --gap:24px;
  --sec:clamp(58px,7.5vw,106px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.78;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(920px 520px at 10% -10%,rgba(255,77,109,.16),transparent 62%),
    radial-gradient(860px 540px at 92% 2%,rgba(123,92,255,.16),transparent 64%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid rgba(255,77,109,.72);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,18,.84);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:17px;
  box-shadow:0 10px 24px rgba(255,77,109,.34);
}
.brand-text{font-weight:900;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.nav-checkbox{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link:active{transform:translateY(1px)}
.nav-link.is-active{
  color:#fff;background:var(--brand-soft);
  box-shadow:inset 0 0 0 1px rgba(255,77,109,.34);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:6px}
.search{
  display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.search:focus-within{border-color:rgba(255,77,109,.55);background:rgba(255,255,255,.08)}
.search svg{flex:0 0 auto;opacity:.6}
.search input{border:0;background:transparent;outline:none;width:148px;font-size:14px}
.search input::placeholder{color:var(--dim)}
.nav-toggle{
  display:none;width:44px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--line-2)}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text)}

/* ===== 按钮 / 标签 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-brand{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.09)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--muted);
}
.tag-brand{background:var(--brand-soft);border-color:rgba(255,77,109,.36);color:#ffb0be}
.tag-accent{background:rgba(46,230,197,.12);border-color:rgba(46,230,197,.32);color:#8ff3e0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ===== 板块基础 ===== */
main{display:block}
.sec{padding:var(--sec) 0;border-bottom:1px solid var(--line);position:relative}
.sec-alt{background:linear-gradient(180deg,rgba(255,255,255,.022),transparent 70%)}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,48px)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.sec h2{font-size:clamp(23px,3vw,34px);line-height:1.28;letter-spacing:-.01em}
.sec-sub{margin-top:14px;color:var(--muted);font-size:15.5px}
.grid{display:grid;gap:var(--gap)}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-6{grid-template-columns:repeat(6,minmax(0,1fr))}

/* ===== 首屏 ===== */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(46px,6vw,92px) 0 clamp(46px,5.6vw,78px);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 440px at 82% 4%,rgba(123,92,255,.30),transparent 62%),
    radial-gradient(640px 400px at 4% 40%,rgba(255,77,109,.24),transparent 64%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(76% 60% at 46% 22%,#000,transparent 78%);
  mask-image:radial-gradient(76% 60% at 46% 22%,#000,transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:5fr 7fr;
  gap:clamp(26px,3.6vw,54px);align-items:center;
}
.hero-copy h1{
  margin-top:18px;
  font-size:clamp(29px,4.2vw,50px);
  line-height:1.16;letter-spacing:-.02em;
}
.hero-copy h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:20px;color:var(--muted);font-size:clamp(15px,1.5vw,16.5px);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-kpis{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 20px;margin-top:34px;max-width:520px;
}
.hero-kpis li{
  padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.hero-kpis li:hover{border-color:rgba(255,77,109,.36);background:rgba(255,255,255,.07);transform:translateY(-2px)}
.hero-kpis b{display:block;font-size:20px;font-weight:900;letter-spacing:-.01em}
.hero-kpis span{font-size:12.5px;color:var(--dim)}

.hero-visual{position:relative;transform:rotate(-1.5deg) translateY(-12px)}
.cover-frame{
  position:relative;border-radius:var(--r-xl);padding:16px;
  background:linear-gradient(160deg,#1b2236 0%,#10141f 72%);
  border:1px solid var(--line-2);box-shadow:var(--sh-md);
}
.cover-wall{
  display:grid;grid-template-columns:1.45fr 1fr;grid-template-rows:1.15fr .85fr;
  gap:12px;height:clamp(280px,34vw,380px);
}
.cover{
  position:relative;overflow:hidden;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--panel-2);
  transition:transform .25s ease,box-shadow .25s ease;
}
.cover:hover{transform:translateY(-3px);box-shadow:var(--sh-sm)}
.cover-main{grid-row:1 / span 2;background:linear-gradient(150deg,#ff4d6d 0%,#7b5cff 62%,#241a4d 100%)}
.cover-b{background:linear-gradient(140deg,#2ee6c5 0%,#1b4f5f 70%)}
.cover-c{background:linear-gradient(140deg,#7b5cff 0%,#2a1c58 72%)}
.cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(6,8,14,.78) 100%);
}
.cover-label{
  position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
  font-size:13px;font-weight:700;color:#fff;line-height:1.4;
}
.cover-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(8,10,16,.62);border:1px solid rgba(255,255,255,.26);color:#fff;
}
.cover-cta{
  position:absolute;z-index:3;left:26px;bottom:26px;
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:var(--r-pill);
  background:rgba(10,12,18,.72);border:1px solid rgba(255,255,255,.3);
  font-size:14px;font-weight:700;backdrop-filter:blur(8px);
  transition:background .2s ease,transform .2s ease;
}
.cover-cta:hover{background:rgba(255,77,109,.9);transform:translateY(-2px)}
.cover-cta i{
  width:0;height:0;border-style:solid;border-width:6px 0 6px 10px;
  border-color:transparent transparent transparent #fff;
}
.float-note{
  position:absolute;right:-10px;bottom:-22px;z-index:4;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(20,25,38,.94);border:1px solid var(--line-2);box-shadow:var(--sh-md);
  transform:rotate(1.5deg);min-width:190px;
}
.float-note b{display:block;font-size:19px;font-weight:900}
.float-note span{font-size:12.5px;color:var(--dim)}

/* ===== 指标看板 ===== */
.metric{
  padding:22px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(255,77,109,.34);background:var(--panel-2)}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.metric-name{font-size:13.5px;color:var(--muted);font-weight:600}
.metric-val{
  margin-top:12px;font-size:clamp(24px,3vw,32px);font-weight:900;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-note{margin-top:8px;font-size:13px;color:var(--dim)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(46,230,197,.14)}

/* ===== 频道矩阵 ===== */
.matrix-card{
  display:flex;flex-direction:column;gap:14px;padding:26px;border-radius:var(--r-lg);
  background:linear-gradient(170deg,var(--panel) 0%,#101623 100%);
  border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.matrix-card:hover{transform:translateY(-5px);border-color:rgba(255,77,109,.38);box-shadow:var(--sh-md)}
.matrix-card h3{font-size:17.5px;line-height:1.45}
.matrix-card p{color:var(--muted);font-size:14.5px}
.matrix-idx{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:15px;color:#fff;background:var(--grad);
}
.matrix-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--dim)}
.matrix-foot a{color:#ffb0be;font-weight:700;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.matrix-foot a:hover{color:#fff;border-color:rgba(255,255,255,.5)}
.matrix-more{display:flex;justify-content:center;margin-top:34px}

/* ===== 结果对比 ===== */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.compare-panel{
  padding:28px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--panel);transition:transform .24s ease,border-color .24s ease;
}
.compare-panel:hover{transform:translateY(-4px)}
.compare-panel.is-good{
  background:linear-gradient(165deg,rgba(255,77,109,.14) 0%,rgba(20,25,38,.9) 62%);
  border-color:rgba(255,77,109,.36);
}
.compare-panel h3{font-size:18px;display:flex;align-items:center;gap:10px}
.compare-list{margin-top:20px;display:grid;gap:12px}
.compare-list li{
  display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--muted);
  padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.09);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list b{color:var(--text);font-weight:700}
.mark{flex:0 0 auto;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;font-size:12px;font-weight:900;margin-top:3px}
.mark-yes{background:rgba(46,230,197,.16);color:#8ff3e0;border:1px solid rgba(46,230,197,.34)}
.mark-no{background:rgba(255,255,255,.06);color:var(--dim);border:1px solid var(--line)}

/* ===== 里程碑 ===== */
.milestone-layout{display:grid;grid-template-columns:5fr 7fr;gap:clamp(26px,3.6vw,54px);align-items:start}
.timeline{position:relative;padding-left:26px}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2),transparent);
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
}
.tl-item h3{font-size:16.5px}
.tl-item p{margin-top:6px;color:var(--muted);font-size:14.5px}
.tl-time{display:inline-block;margin-bottom:8px;font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.milestone-aside{
  padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(165deg,var(--panel-2) 0%,#101623 100%);
}
.milestone-aside h3{font-size:18px}
.milestone-aside p{margin-top:10px;color:var(--muted);font-size:14.5px}
.bar-list{margin-top:22px;display:grid;gap:16px}
.bar-item span{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted)}
.bar-track{margin-top:8px;height:7px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden}
.bar-fill{height:100%;border-radius:var(--r-pill);background:var(--grad)}

/* ===== 资讯列表 ===== */
.news-list{display:grid;gap:14px}
.news-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:20px 22px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.news-item:hover{transform:translateX(4px);border-color:rgba(123,92,255,.4);background:var(--panel-2)}
.news-date{
  font-size:12.5px;font-weight:700;color:var(--dim);min-width:78px;
}
.news-body h3{font-size:16px;line-height:1.5}
.news-body p{margin-top:6px;color:var(--muted);font-size:14px}
.news-side{display:flex;align-items:center;gap:10px}

/* ===== 平台保障 ===== */
.trust-card{
  padding:24px;border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(170deg,var(--panel) 0%,#101623 100%);
  transition:transform .24s ease,border-color .24s ease;
}
.trust-card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.36)}
.trust-ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:rgba(46,230,197,.12);border:1px solid rgba(46,230,197,.3);
  color:#8ff3e0;font-weight:900;font-size:16px;margin-bottom:16px;
}
.trust-card h3{font-size:16.5px}
.trust-card p{margin-top:9px;color:var(--muted);font-size:14.5px}
.voice-row{
  margin-top:34px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);
}
.voice{
  padding:22px;border-radius:var(--r-md);background:rgba(255,255,255,.035);
  border:1px solid var(--line);
}
.voice p{color:var(--text);font-size:14.5px}
.voice span{display:block;margin-top:12px;font-size:13px;color:var(--dim)}

/* ===== 快速解答 ===== */
.quick-card{
  padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(170deg,var(--panel-2) 0%,#0f141f 100%);
  transition:transform .24s ease,border-color .24s ease;
}
.quick-card:hover{transform:translateY(-4px);border-color:rgba(255,77,109,.34)}
.quick-q{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand)}
.quick-card h3{margin-top:12px;font-size:17px}
.quick-card p{margin-top:10px;color:var(--muted);font-size:14.5px}

/* ===== FAQ ===== */
.faq-wrap{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--panel);
  overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item[open]{border-color:rgba(255,77,109,.36);background:var(--panel-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:19px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:9px;
  display:grid;place-items:center;font-weight:900;font-size:16px;
  background:rgba(255,77,109,.14);color:#ffb0be;border:1px solid rgba(255,77,109,.3);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.8px}

/* ===== 转化区 ===== */
.join{
  position:relative;overflow:hidden;
  padding:clamp(48px,6vw,88px) 0;border-bottom:1px solid var(--line);
}
.join::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 420px at 22% 20%,rgba(255,77,109,.24),transparent 66%),
             radial-gradient(680px 400px at 88% 80%,rgba(123,92,255,.24),transparent 66%);
}
.join-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;
  gap:clamp(28px,4vw,60px);align-items:center;
}
.join h2{font-size:clamp(23px,3.2vw,36px);line-height:1.26}
.join p.lead{margin-top:16px;color:var(--muted);font-size:15.5px}
.join-points{margin-top:24px;display:grid;gap:11px}
.join-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted)}
.join-points li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;background:var(--grad)}
.join-form{
  padding:28px;border-radius:var(--r-xl);
  background:linear-gradient(165deg,rgba(26,33,51,.96) 0%,rgba(14,18,27,.96) 100%);
  border:1px solid var(--line-2);box-shadow:var(--sh-md);
}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:700;color:var(--muted)}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  outline:none;font-size:14.5px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--dim)}
.field input:focus,.field select:focus{
  border-color:rgba(255,77,109,.6);background:rgba(255,255,255,.08);
  box-shadow:0 0 0 4px rgba(255,77,109,.14);
}
.field select option{background:#141926;color:var(--text)}
.join-form .btn{width:100%}
.form-note{margin-top:14px;font-size:12.8px;color:var(--dim);text-align:center}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding-top:clamp(44px,5vw,72px)}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(22px,3vw,44px);
  padding-bottom:38px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{color:var(--muted);font-size:14.2px;max-width:360px}
.footer-domain{margin-top:12px;font-size:13px;color:var(--dim);letter-spacing:.03em}
.footer-col h4{font-size:14.5px;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:#fff;padding-left:5px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding:22px 0 30px;font-size:13.5px;color:var(--dim);
}
.footer-links{display:flex;gap:18px}
.footer-links a{color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:#fff}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-visual{transform:none;max-width:640px;margin:0 auto}
  .g-6{grid-template-columns:repeat(3,minmax(0,1fr))}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .milestone-layout{grid-template-columns:1fr}
  .join-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:860px){
  .nav{
    position:absolute;top:74px;left:0;right:0;
    background:rgba(10,12,18,.97);border-bottom:1px solid var(--line);
    backdrop-filter:blur(14px);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;padding:14px 20px 20px}
  .nav-link{padding:12px 14px;font-size:15px;border-radius:12px}
  .nav-toggle{display:flex}
  .search{display:none}
  .nav-checkbox:checked ~ .nav{max-height:320px}
  .news-item{grid-template-columns:1fr;gap:12px}
  .news-date{min-width:0}
  .voice-row{grid-template-columns:1fr}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .g-2,.g-3,.g-4,.g-6{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .hero-kpis{grid-template-columns:1fr 1fr;max-width:none}
  .cover-wall{height:300px}
  .float-note{position:static;transform:none;margin-top:14px;right:auto;bottom:auto}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .header-inner{height:66px;gap:12px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px}
  .nav{top:66px}
  .btn{padding:12px 20px;font-size:14.5px}
  .hero-actions .btn{width:100%}
  .hero-kpis{grid-template-columns:1fr}
  .cover-wall{grid-template-columns:1fr;grid-template-rows:1.2fr 1fr 1fr;height:auto}
  .cover{min-height:130px}
  .cover-main{grid-row:auto}
  .cover-cta{left:16px;bottom:16px;padding:10px 16px;font-size:13px}
  .sec-head{margin-bottom:26px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
  .join-form{padding:20px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
/* ================= roulang design system · category3 ================= */
:root{
  --bg:#0a0c12;
  --bg-soft:#0e121b;
  --panel:#141926;
  --panel-2:#1a2133;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.18);
  --text:#eef1f8;
  --muted:#9aa5bd;
  --dim:#6d7891;
  --brand:#ff4d6d;
  --brand-soft:rgba(255,77,109,.14);
  --brand-2:#7b5cff;
  --accent:#2ee6c5;
  --grad:linear-gradient(135deg,#ff4d6d 0%,#7b5cff 100%);
  --r-xs:8px;--r-sm:12px;--r-md:18px;--r-lg:26px;--r-xl:34px;--r-pill:999px;
  --sh-sm:0 6px 18px rgba(0,0,0,.35);
  --sh-md:0 18px 44px rgba(0,0,0,.46);
  --sh-brand:0 14px 34px rgba(255,77,109,.30);
  --w:1180px;
  --gap:24px;
  --sec:clamp(58px,7.5vw,106px);
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.78;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(920px 520px at 10% -10%,rgba(255,77,109,.16),transparent 62%),
    radial-gradient(860px 540px at 92% 2%,rgba(123,92,255,.16),transparent 64%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,77,109,.35)}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}
section[id],div[id]{scroll-margin-top:92px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,18,.84);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:17px;
  box-shadow:0 10px 24px rgba(255,77,109,.34);
}
.brand-text{font-weight:900;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.nav-checkbox{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link:active{transform:translateY(1px)}
.nav-link.is-active{color:#fff;background:var(--brand-soft);box-shadow:inset 0 0 0 1px rgba(255,77,109,.34)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:6px}
.search{
  display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.search:focus-within{border-color:rgba(255,77,109,.55);background:rgba(255,255,255,.08)}
.search svg{flex:0 0 auto;opacity:.6}
.search input{border:0;background:transparent;outline:none;width:148px;font-size:14px}
.search input::placeholder{color:var(--dim)}
.nav-toggle{
  display:none;width:44px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--line-2)}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text)}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-brand{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.09)}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--muted);
}
.tag-brand{background:var(--brand-soft);border-color:rgba(255,77,109,.36);color:#ffb0be}
.tag-accent{background:rgba(46,230,197,.12);border-color:rgba(46,230,197,.32);color:#8ff3e0}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;border-bottom:1px solid var(--line)}
.section:last-of-type{border-bottom:0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.sec-head .sec-title{font-size:clamp(22px,2.6vw,32px)}
.sec-head .sec-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:660px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}

/* ---------- 页首 ---------- */
.page-hero{position:relative;overflow:hidden;padding:clamp(48px,6vw,86px) 0 clamp(42px,5vw,68px);border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 420px at 86% 0%,rgba(123,92,255,.30),transparent 64%),
    radial-gradient(620px 360px at 4% 36%,rgba(255,77,109,.22),transparent 64%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.034) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.034) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(78% 62% at 44% 22%,#000,transparent 76%);
  mask-image:radial-gradient(78% 62% at 44% 22%,#000,transparent 76%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--muted);transition:color .2s ease}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:10px;opacity:.6}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:start}
.hero-copy h1{font-size:clamp(27px,3.9vw,46px);line-height:1.18;margin-top:18px}
.hero-copy h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:20px;color:var(--muted);font-size:clamp(15px,1.4vw,16.5px);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.fact{display:flex;flex-direction:column;gap:2px}
.fact b{font-size:20px;font-weight:900;letter-spacing:-.01em}
.fact span{font-size:13px;color:var(--dim)}

/* 热度面板 */
.heat-panel{
  background:linear-gradient(180deg,var(--panel) 0%,rgba(20,25,38,.72) 100%);
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-md);
}
.heat-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.heat-head h2{font-size:16.5px}
.heat-head span{font-size:12.5px;color:var(--dim)}
.heat-row{margin-bottom:16px}
.heat-row:last-child{margin-bottom:0}
.heat-meta{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);margin-bottom:7px}
.heat-meta b{color:var(--text);font-weight:700}
.heat-bar{height:7px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);overflow:hidden}
.heat-bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad)}
.heat-bar i.alt{background:linear-gradient(135deg,#2ee6c5 0%,#7b5cff 100%)}
.heat-foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim)}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.metric-card{
  position:relative;overflow:hidden;padding:26px 24px 24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.metric-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--grad);opacity:.85}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--sh-md)}
.metric-label{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px}
.metric-label i{color:var(--brand);font-size:13px}
.metric-value{margin-top:12px;font-size:clamp(26px,3vw,36px);font-weight:900;letter-spacing:-.02em}
.metric-value small{font-size:14px;font-weight:600;color:var(--dim);margin-left:4px}
.metric-note{margin-top:10px;font-size:13.5px;color:var(--dim)}

/* ---------- 专题矩阵 ---------- */
.topic-card{
  height:100%;padding:28px 24px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-md);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.topic-card:hover{transform:translateY(-5px);border-color:rgba(255,77,109,.4);box-shadow:0 22px 48px rgba(0,0,0,.5);background:var(--panel-2)}
.topic-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid rgba(255,77,109,.3);color:#ff8ea3;font-size:17px;
}
.topic-card h3{font-size:18px}
.topic-card p{color:var(--muted);font-size:14.5px;flex:1 1 auto}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 对比 ---------- */
.compare-wrap{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,3vw,40px)}
.compare-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-bottom:34px}
.compare-cell{border-left:2px solid var(--line-2);padding-left:16px}
.compare-cell b{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:900;letter-spacing:-.02em}
.compare-cell span{font-size:13.5px;color:var(--dim)}
.compare-rows{display:flex;flex-direction:column;gap:16px}
.compare-row{display:grid;grid-template-columns:120px minmax(0,1fr) 76px 84px;align-items:center;gap:16px}
.compare-row .c-label{font-size:14.5px;color:var(--muted)}
.compare-row .c-bar{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);overflow:hidden}
.compare-row .c-bar i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,#7b5cff,#ff4d6d)}
.compare-row .c-now{font-size:14.5px;font-weight:700;text-align:right}
.compare-row .c-delta{font-size:13px;font-weight:700;text-align:right;color:var(--accent)}
.compare-row .c-delta.down{color:#ff8ea3}

/* ---------- 里程碑 ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--brand-2),transparent)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-30px;top:7px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--brand);box-shadow:0 0 0 4px rgba(255,77,109,.14)}
.tl-item h3{font-size:17px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tl-item p{margin-top:8px;color:var(--muted);font-size:14.5px;max-width:720px}

/* ---------- 资讯列表 ---------- */
.news-list{display:flex;flex-direction:column}
.news-item{
  display:grid;grid-template-columns:96px minmax(0,1fr) auto;gap:20px;align-items:start;
  padding:22px 6px;border-top:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease;
}
.news-item:last-child{border-bottom:1px solid var(--line)}
.news-item:hover{background:rgba(255,255,255,.03);padding-left:14px}
.news-date{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.04em;padding-top:3px}
.news-item h3{font-size:16.5px}
.news-item p{margin-top:7px;color:var(--muted);font-size:14px}
.news-badge{align-self:center}

/* ---------- 平台保障 ---------- */
.trust-card{
  height:100%;padding:26px 24px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(20,25,38,.9),rgba(14,18,27,.9));
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.trust-card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.trust-card i{font-size:18px;color:var(--accent)}
.trust-card h3{margin-top:14px;font-size:17px}
.trust-card p{margin-top:9px;color:var(--muted);font-size:14.5px}

/* ---------- 快速解答 ---------- */
.qa-card{
  height:100%;padding:24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:background .25s ease,border-color .25s ease;
}
.qa-card:hover{background:rgba(255,255,255,.055);border-color:var(--line-2)}
.qa-card h3{font-size:16px;display:flex;gap:10px;align-items:flex-start}
.qa-card h3 i{color:var(--brand);font-size:14px;margin-top:5px}
.qa-card p{margin-top:10px;color:var(--muted);font-size:14.5px}
.voice-strip{
  margin-top:26px;display:flex;gap:16px;align-items:flex-start;
  padding:22px 24px;border-radius:var(--r-md);
  background:linear-gradient(135deg,rgba(255,77,109,.12),rgba(123,92,255,.12));
  border:1px solid var(--line-2);
}
.voice-strip i{color:var(--brand);font-size:18px;margin-top:4px}
.voice-strip p{color:var(--text);font-size:15px}
.voice-strip span{display:block;margin-top:8px;font-size:13px;color:var(--dim)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--panel);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(255,77,109,.36);background:var(--panel-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:700;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#ffb0be}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.5px}

/* ---------- 订阅转化 ---------- */
.join-wrap{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);border:1px solid var(--line-2);
  background:linear-gradient(135deg,rgba(255,77,109,.16) 0%,rgba(123,92,255,.18) 100%),var(--panel);
  padding:clamp(30px,4vw,56px);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:42px;align-items:center;
}
.join-wrap::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,197,.24),transparent 68%);
}
.join-copy{position:relative;z-index:2}
.join-copy h2{font-size:clamp(22px,2.8vw,32px)}
.join-copy p{margin-top:14px;color:var(--muted);font-size:15px;max-width:520px}
.join-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.join-form{position:relative;z-index:2;background:rgba(10,12,18,.6);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);outline:none;
  font-size:14.5px;transition:border-color .2s ease,background .2s ease;
}
.field input::placeholder{color:var(--dim)}
.field input:focus,.field select:focus{border-color:rgba(255,77,109,.6);background:rgba(255,255,255,.09)}
.field select option{background:#141926;color:var(--text)}
.join-form .btn{width:100%}
.form-hint{margin-top:12px;font-size:12.5px;color:var(--dim);text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:clamp(44px,5vw,72px) 0 30px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{color:var(--muted);font-size:14.5px;max-width:360px}
.footer-domain{margin-top:14px;font-size:13px;color:var(--dim);letter-spacing:.04em}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--brand);padding-left:4px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13.5px;color:var(--dim)}
.footer-links{display:flex;gap:20px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .join-wrap{grid-template-columns:1fr;gap:30px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:980px){
  .nav-toggle{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:74px;margin-left:0;
    background:rgba(12,15,23,.98);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .32s ease;
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .nav-checkbox:checked ~ .nav{max-height:340px}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;padding:12px 24px 20px}
  .nav-link{display:block;padding:13px 14px;font-size:15px}
  .search{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .metric-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr 1fr;gap:18px}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:14px 0;border-bottom:1px solid var(--line)}
  .compare-row .c-now,.compare-row .c-delta{text-align:left}
  .news-item{grid-template-columns:1fr;gap:10px}
  .news-badge{justify-self:start}
  .header-inner{height:66px;gap:12px}
  .nav{top:66px}
  .brand-text{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .voice-strip{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .compare-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .tl-item h3{font-size:16px}
  .metric-card,.topic-card,.trust-card,.qa-card{padding:22px 18px}
  .heat-panel{padding:22px 18px}
}

/* roulang page: category1 */
/* ===== roulang | 日逼紧一区 · 设计系统（与首页保持一致） ===== */
:root{
  --bg:#0a0c12;
  --bg-soft:#0e121b;
  --panel:#141926;
  --panel-2:#1a2133;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.18);
  --text:#eef1f8;
  --muted:#9aa5bd;
  --dim:#6d7891;
  --brand:#ff4d6d;
  --brand-soft:rgba(255,77,109,.14);
  --brand-2:#7b5cff;
  --accent:#2ee6c5;
  --grad:linear-gradient(135deg,#ff4d6d 0%,#7b5cff 100%);
  --r-xs:8px;--r-sm:12px;--r-md:18px;--r-lg:26px;--r-xl:34px;--r-pill:999px;
  --sh-sm:0 6px 18px rgba(0,0,0,.35);
  --sh-md:0 18px 44px rgba(0,0,0,.46);
  --sh-brand:0 14px 34px rgba(255,77,109,.30);
  --w:1180px;
  --gap:24px;
  --sec:clamp(58px,7.5vw,106px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.78;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(920px 520px at 10% -10%,rgba(255,77,109,.16),transparent 62%),
    radial-gradient(860px 540px at 92% 2%,rgba(123,92,255,.16),transparent 64%);
  background-repeat:no-repeat;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(255,77,109,.36);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}
.anchor{display:block;height:0;position:relative;top:-84px}
main{display:block}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,18,.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:17px;
  box-shadow:0 10px 24px rgba(255,77,109,.34);
}
.brand-text{font-weight:900;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.nav-checkbox{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link:active{transform:translateY(1px)}
.nav-link.is-active{
  color:#fff;background:var(--brand-soft);
  box-shadow:inset 0 0 0 1px rgba(255,77,109,.34);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:6px}
.search{
  display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.search:focus-within{border-color:rgba(255,77,109,.55);background:rgba(255,255,255,.08)}
.search svg{flex:0 0 auto;opacity:.6}
.search input{border:0;background:transparent;outline:none;width:148px;font-size:14px}
.search input::placeholder{color:var(--dim)}
.nav-toggle{
  display:none;width:44px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--line-2)}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-brand{background:var(--grad);color:#fff;box-shadow:var(--sh-brand)}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.09);color:#fff}
.btn-brand:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);transform:translateY(-2px);color:var(--text)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}

/* ===== 标签 / 徽章 ===== */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--muted);
}
.tag-brand{background:var(--brand-soft);border-color:rgba(255,77,109,.36);color:#ffb0be}
.tag-accent{background:rgba(46,230,197,.12);border-color:rgba(46,230,197,.32);color:#8ff3e0}
.tag-plain{background:rgba(123,92,255,.12);border-color:rgba(123,92,255,.3);color:#c6b8ff}

/* ===== 分类页首屏（图标矩阵 + 状态条 + 短标题） ===== */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(46px,6vw,88px) 0 clamp(40px,5vw,68px);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(700px 400px at 82% 4%,rgba(123,92,255,.30),transparent 62%),
    radial-gradient(620px 360px at 4% 36%,rgba(255,77,109,.22),transparent 62%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(80% 62% at 44% 22%,#000,transparent 76%);
  mask-image:radial-gradient(80% 62% at 44% 22%,#000,transparent 76%);
}
.page-hero .container{position:relative;z-index:2}
.status-bar{
  display:inline-flex;flex-wrap:wrap;align-items:center;gap:9px 14px;
  padding:8px 17px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.status-bar .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(46,230,197,.16);
}
.status-bar .sep{width:1px;height:12px;background:var(--line-2)}
.status-bar b{color:var(--text);font-weight:700}
.page-hero h1{
  margin-top:22px;max-width:900px;
  font-size:clamp(29px,4.4vw,48px);line-height:1.16;letter-spacing:-.02em;
}
.page-hero h1 em{
  font-style:normal;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:20px;max-width:790px;color:var(--muted);font-size:clamp(15.5px,1.5vw,17px)}
.icon-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin-top:34px;max-width:1000px;
}
.icon-cell{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.058),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease,background .22s ease;
}
.icon-cell:hover{border-color:rgba(255,77,109,.42);transform:translateY(-3px);background:rgba(255,255,255,.075)}
.icon-cell .ic{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);color:#ffb0be;border:1px solid rgba(255,77,109,.26);
}
.icon-cell span{font-size:14px;font-weight:600;letter-spacing:.01em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* ===== 板块通用 ===== */
.sec{padding:var(--sec) 0;border-bottom:1px solid var(--line)}
main > .sec:last-child{border-bottom:0}
.sec-head{max-width:780px;margin-bottom:clamp(26px,3.4vw,44px)}
.sec-title{margin-top:14px;font-size:clamp(23px,2.9vw,34px)}
.sec-desc{margin-top:14px;color:var(--muted);font-size:15.5px}
.sec-side{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;flex-wrap:wrap}

/* ===== 指标看板 ===== */
.metric-card{
  height:100%;padding:24px 20px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--panel),var(--bg-soft));
  border:1px solid var(--line);box-shadow:var(--sh-sm);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--sh-md)}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.metric-ico{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--accent);
}
.metric-num{margin-top:18px;font-size:clamp(26px,3.4vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.1}
.metric-num small{font-size:14px;font-weight:700;color:var(--muted);margin-left:4px}
.metric-label{margin-top:10px;font-size:14px;color:var(--muted)}
.metric-bar{margin-top:16px;height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:inherit;background:var(--grad)}
.metric-bar.accent i{background:linear-gradient(90deg,#2ee6c5,#7b5cff)}
.board-note{
  margin-top:22px;padding:18px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.035);border:1px dashed var(--line-2);
  color:var(--muted);font-size:14.5px;
}
.board-note b{color:var(--text)}

/* ===== 频道矩阵 ===== */
.channel-card{
  display:flex;flex-direction:column;height:100%;
  padding:26px 24px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease,background .26s ease;
}
a.channel-card:hover{transform:translateY(-5px);border-color:rgba(255,77,109,.44);box-shadow:var(--sh-md);background:var(--panel-2)}
a.channel-card:hover .channel-more{gap:10px;color:#ffc2cd}
.channel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.channel-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:#ffb0be;border:1px solid rgba(255,77,109,.28);
}
.channel-idx{font-size:12.5px;font-weight:800;color:var(--dim);letter-spacing:.14em}
.channel-card h3{margin-top:18px;font-size:19px}
.channel-card p{margin-top:10px;color:var(--muted);font-size:14.5px;flex:1 1 auto}
.channel-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.channel-more{
  margin-top:18px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:#ffb0be;transition:gap .22s ease,color .22s ease;
}

/* ===== 结果对比 ===== */
.compare-card{
  height:100%;padding:28px 26px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
}
.compare-before{background:var(--bg-soft)}
.compare-after{
  background:linear-gradient(160deg,rgba(255,77,109,.13),rgba(123,92,255,.09)),var(--panel);
  border-color:rgba(255,77,109,.3);
}
.compare-card h3{font-size:19px}
.compare-card .compare-kicker{
  font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--dim);text-transform:uppercase;
}
.check-list{margin-top:18px;display:grid;gap:12px}
.check-list li{display:flex;gap:11px;font-size:14.5px;color:var(--muted);line-height:1.7}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--dim);
}
.compare-after .check-list li::before{background:var(--accent);box-shadow:0 0 0 4px rgba(46,230,197,.14)}
.compare-after .check-list li{color:#cfd6e6}

/* ===== 里程碑 ===== */
.timeline{position:relative;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(255,77,109,.55),rgba(123,92,255,.4),transparent);
}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(255,77,109,.12);
}
.timeline-time{font-size:12.5px;font-weight:800;color:#ffb0be;letter-spacing:.08em}
.timeline-body h3{margin-top:8px;font-size:18px}
.timeline-body p{margin-top:8px;color:var(--muted);font-size:14.5px}
.side-panel{
  height:100%;padding:26px 24px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);
}
.side-panel h3{font-size:17px}
.stat-rows{margin-top:18px;display:grid;gap:14px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;font-size:14.5px;color:var(--muted)}
.stat-row b{font-size:20px;color:var(--text);font-weight:900;letter-spacing:-.01em}
.side-panel .divider{height:1px;background:var(--line);margin:22px 0}

/* ===== 更新动态列表 ===== */
.news-list{display:grid;gap:14px}
.news-item{
  display:grid;grid-template-columns:104px minmax(0,1fr) auto;
  gap:22px;align-items:center;
  padding:20px 24px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.news-item:hover{border-color:var(--line-2);background:var(--panel-2);transform:translateX(4px)}
.news-day{font-size:19px;font-weight:900;letter-spacing:-.01em}
.news-tag{display:inline-block;margin-top:6px;font-size:12.5px;color:var(--muted)}
.news-item h3{font-size:16.5px}
.news-item p{margin-top:7px;font-size:14px;color:var(--muted)}
.news-meta{font-size:13px;color:var(--dim);white-space:nowrap;text-align:right}
.list-more{margin-top:26px}

/* ===== 平台保障 ===== */
.trust-card{
  height:100%;padding:26px 24px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  border-top:3px solid rgba(255,77,109,.5);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.trust-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-top-color:var(--accent)}
.trust-card h3{margin-top:16px;font-size:17.5px}
.trust-card p{margin-top:10px;color:var(--muted);font-size:14.5px}
.trust-ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:rgba(46,230,197,.12);border:1px solid rgba(46,230,197,.3);color:#8ff3e0;
}
.trust-card:nth-child(odd) .trust-ico{background:var(--brand-soft);border-color:rgba(255,77,109,.3);color:#ffb0be}

/* ===== 快速解答 ===== */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.quick-card{
  padding:24px 22px;border-radius:var(--r-md);
  background:var(--panel-2);border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease;
}
.quick-card:hover{border-color:rgba(46,230,197,.36);transform:translateY(-3px)}
.quick-q{font-size:15.5px;font-weight:800}
.quick-a{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--panel);
  overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item[open]{border-color:rgba(255,77,109,.38);background:var(--panel-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:var(--brand);
  transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.5px}

/* ===== 转化区 ===== */
.cta-panel{
  position:relative;overflow:hidden;
  padding:clamp(30px,4vw,54px);border-radius:var(--r-xl);
  background:linear-gradient(135deg,rgba(255,77,109,.17),rgba(123,92,255,.15)),var(--panel);
  border:1px solid var(--line-2);box-shadow:var(--sh-md);
}
.cta-panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,109,.28),transparent 68%);
  pointer-events:none;
}
.cta-panel .container,.cta-inner{position:relative;z-index:2}
.cta-title{font-size:clamp(23px,2.9vw,33px)}
.cta-desc{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:560px}
.cta-facts{margin-top:24px;display:grid;gap:11px}
.cta-facts li{display:flex;gap:10px;font-size:14.5px;color:#cfd6e6}
.cta-facts li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(46,230,197,.14);
}
.sub-form{
  padding:26px 24px;border-radius:var(--r-lg);
  background:rgba(10,12,18,.66);border:1px solid var(--line);
  display:grid;gap:14px;
}
.field{display:grid;gap:8px}
.field label{font-size:13px;font-weight:600;color:var(--muted)}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,#9aa5bd 50%),linear-gradient(135deg,#9aa5bd 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder{color:var(--dim)}
.field input:focus,.field select:focus{
  border-color:rgba(255,77,109,.6);box-shadow:0 0 0 3px rgba(255,77,109,.16);background:rgba(255,255,255,.08);
}
.sub-form .btn{width:100%}
.form-note{font-size:12.5px;color:var(--dim);line-height:1.65}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:0;padding:clamp(46px,5.5vw,72px) 0 30px;
  background:var(--bg-soft);border-top:1px solid var(--line);
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:34px;padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-desc{margin-top:16px;color:var(--muted);font-size:14.5px;max-width:420px}
.footer-domain{margin-top:14px;font-size:13px;color:var(--dim);letter-spacing:.04em}
.footer-col h4{font-size:15px;font-weight:800}
.footer-col ul{margin-top:16px;display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:#ffb0be;padding-left:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:24px;color:var(--dim);font-size:13.5px;
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:#ffb0be}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .icon-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-top > div:first-child{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .search{display:none}
  .nav{
    position:absolute;left:0;right:0;top:74px;z-index:70;
    display:none;margin-left:0;padding:14px 24px 22px;
    background:rgba(10,12,18,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 46px rgba(0,0,0,.5);
  }
  .nav-checkbox:checked ~ .nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-link{display:block;padding:13px 16px;font-size:15px}
  .header-tools{margin-left:auto}
  .news-item{grid-template-columns:88px minmax(0,1fr);gap:16px}
  .news-meta{grid-column:2;text-align:left;margin-top:2px}
}
@media (max-width:768px){
  .header-inner{height:66px;gap:12px}
  .nav{top:66px}
  .page-hero{padding-top:38px}
  .hero-actions .btn{flex:1 1 220px}
  .quick-grid{grid-template-columns:1fr}
  .timeline{padding-left:26px}
  .timeline-item::before{left:-26px}
  .compare-card,.metric-card,.channel-card,.trust-card,.side-panel{padding:22px 20px}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px}
  .footer-top > div:first-child{grid-column:1 / -1}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .icon-grid{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:10px;padding:18px 18px}
  .news-meta{grid-column:1}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .status-bar{font-size:12.5px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}