/* roulang page: index */
:root{
  --bg:#05060d;
  --bg-2:#080c18;
  --panel:rgba(20,29,55,.62);
  --panel-2:rgba(14,21,42,.85);
  --panel-solid:#0e152b;
  --border:rgba(122,160,255,.16);
  --border-strong:rgba(122,160,255,.32);
  --text:#eaf0ff;
  --muted:#93a1c4;
  --muted-2:#6c7ba0;
  --primary:#4f7cff;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --gold:#ffc76b;
  --radius-l:24px;
  --radius-m:16px;
  --radius-s:10px;
  --shadow:0 18px 44px rgba(2,6,20,.6);
  --glow:0 0 26px rgba(79,124,255,.42);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(79,124,255,.20),transparent 62%),
    radial-gradient(760px 480px at 88% 4%,rgba(34,211,238,.14),transparent 60%),
    radial-gradient(700px 520px at 60% 100%,rgba(139,92,246,.13),transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
::selection{background:rgba(79,124,255,.4);color:#fff}
.container{width:min(var(--container),92%);margin:0 auto;position:relative;z-index:2}
.section{padding:76px 0;position:relative}
.section-tight{padding:34px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(10,16,36,0),rgba(13,21,44,.72) 22%,rgba(13,21,44,.72) 78%,rgba(10,16,36,0));
  border-top:1px solid rgba(122,160,255,.08);
  border-bottom:1px solid rgba(122,160,255,.08);
}
.glass{
  background:var(--panel);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow);
}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.06em;
  color:#b9d4ff;
  background:rgba(79,124,255,.12);
  border:1px solid rgba(79,124,255,.28);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h2.title{font-size:clamp(24px,3.2vw,34px);line-height:1.35;letter-spacing:.01em;font-weight:700}
h2.title em{font-style:normal;color:#8fb4ff}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
.section-head.center p{margin-left:auto;margin-right:auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(120deg,#4f7cff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 22px rgba(79,124,255,.5);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(79,124,255,.78)}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 16px rgba(79,124,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-strong);
  color:#dce7ff;
}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.1);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,#ffc76b,#ff9a3c);
  color:#2a1600;
  box-shadow:0 0 22px rgba(255,181,86,.38);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(255,181,86,.6)}
.btn-sm{padding:9px 18px;font-size:14px}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--border-strong);
  color:#c6d8ff;background:rgba(79,124,255,.1);
}
.badge-live{color:#ffd9d9;background:rgba(255,86,86,.14);border-color:rgba(255,86,86,.4)}
.badge-live::before{content:"";width:7px;height:7px;border-radius:50%;background:#ff5b5b;box-shadow:0 0 10px #ff5b5b;animation:pulse 1.6s infinite}
.badge-gold{color:#ffe0ad;background:rgba(255,199,107,.13);border-color:rgba(255,199,107,.4)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.tag{
  display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:14px;color:#bed0f5;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  transition:.24s;
}
.tag:hover{color:#fff;border-color:var(--cyan);background:rgba(34,211,238,.12);transform:translateY(-2px)}

/* 头部与抽屉导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:rgba(5,7,14,.78);
  border-bottom:1px solid rgba(122,160,255,.12);
}
.header-inner{
  width:min(var(--container),92%);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  height:70px;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:19px;color:#04101f;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
  box-shadow:0 0 20px rgba(79,124,255,.55);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text span{color:var(--muted-2);font-size:12px;font-weight:500;display:block;line-height:1.2;letter-spacing:.08em}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.04);
  display:grid;place-items:center;gap:5px;align-content:center;
  transition:.25s;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#cfe0ff;transition:.28s}
.menu-toggle:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.3)}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{position:fixed;inset:0;z-index:95;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;background:rgba(3,6,14,.72);
  backdrop-filter:blur(6px);opacity:0;transition:opacity .35s ease;
}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;
  width:min(430px,100%);
  background:linear-gradient(180deg,#0a1024,#05080f);
  border-left:1px solid var(--border);
  transform:translateX(100%);
  transition:transform .4s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  padding:26px 26px 30px;
  overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--border-strong);
  display:grid;place-items:center;color:#cfe0ff;font-size:18px;line-height:1;transition:.24s;
}
.drawer-close:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.1)}
.drawer-note{color:var(--muted);font-size:13.5px;line-height:1.8;padding:14px 16px;border-radius:var(--radius-m);background:rgba(79,124,255,.08);border:1px solid var(--border);margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;
  padding:17px 6px;
  border-bottom:1px solid rgba(122,160,255,.12);
  color:var(--muted);font-size:16.5px;font-weight:600;
  transition:.24s;
}
.drawer-nav a .idx{font-size:12px;color:var(--muted-2);font-weight:700;letter-spacing:.1em;width:22px}
.drawer-nav a .arrow{margin-left:auto;font-size:14px;opacity:0;transform:translateX(-6px);transition:.24s;color:var(--cyan)}
.drawer-nav a:hover,.drawer-nav a.active{color:#fff;padding-left:12px}
.drawer-nav a:hover .arrow,.drawer-nav a.active .arrow{opacity:1;transform:translateX(0)}
.drawer-nav a.active{background:linear-gradient(90deg,rgba(79,124,255,.16),transparent);border-radius:12px;border-bottom-color:transparent}
.drawer-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}
.drawer-foot small{color:var(--muted-2);font-size:12.5px;text-align:center;letter-spacing:.02em}

/* Hero */
.hero{padding-bottom:20px;position:relative}
.hero-banner{
  position:relative;height:210px;overflow:hidden;
  border-radius:0 0 var(--radius-l) var(--radius-l);
  background:linear-gradient(120deg,#0b1430,#132a5c 40%,#0a2540 70%,#131a3f);
  border-bottom:1px solid var(--border);
}
.hero-banner .grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,170,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.12) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 40%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 20%,transparent 78%);
}
.hero-banner .orb{
  position:absolute;border-radius:50%;filter:blur(38px);opacity:.75;
}
.hero-banner .orb.a{width:280px;height:280px;background:rgba(79,124,255,.6);top:-90px;left:8%}
.hero-banner .orb.b{width:240px;height:240px;background:rgba(34,211,238,.45);bottom:-120px;right:18%}
.hero-banner .orb.c{width:200px;height:200px;background:rgba(139,92,246,.45);top:20px;right:36%}
.hero-banner .live-tag{
  position:absolute;left:max(4%,calc((100% - var(--container)) / 2));
  bottom:20px;display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(8,12,26,.7);border:1px solid rgba(255,86,86,.45);color:#ffd9d9;
  backdrop-filter:blur(8px);
}
.hero-banner .live-tag i{width:7px;height:7px;border-radius:50%;background:#ff5b5b;box-shadow:0 0 10px #ff5b5b;animation:pulse 1.6s infinite}
.hero-body{padding-top:0}
.creator-card{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  margin-top:-52px;
  padding:22px 26px;
  border-radius:var(--radius-l);
  background:rgba(11,17,36,.86);
  backdrop-filter:blur(18px);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.avatar{
  width:86px;height:86px;border-radius:26px;flex-shrink:0;
  display:grid;place-items:center;
  font-size:34px;font-weight:800;color:#04101f;
  background:linear-gradient(135deg,#4f7cff,#22d3ee 60%,#8b5cf6);
  box-shadow:0 0 34px rgba(79,124,255,.6);
  border:3px solid rgba(5,7,14,.9);
}
.creator-meta{flex:1;min-width:240px}
.creator-name{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}
.verify{
  font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px;
  color:#0b1020;background:linear-gradient(120deg,#22d3ee,#4f7cff);
}
.creator-meta p{color:var(--muted);font-size:14px;margin-top:4px}
.stat-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.stat-badge{
  padding:7px 14px;border-radius:12px;font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--border);
}
.stat-badge b{color:#fff;font-size:15px;margin-right:4px}
.creator-actions{display:flex;gap:12px;flex-wrap:wrap}
.follow-btn.following{background:rgba(34,211,238,.14);color:#bff2ff;box-shadow:none;border:1px solid rgba(34,211,238,.5)}
.hero-title{
  margin-top:38px;
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.28;font-weight:800;letter-spacing:.01em;
  max-width:15em;
}
.hero-title em{font-style:normal;background:linear-gradient(120deg,#7fb0ff,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:16px;font-size:18px;color:#bcd0f7;font-weight:600}
.hero-intro{margin-top:20px;max-width:820px;color:var(--muted);font-size:15.5px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;
}
.metric{padding:18px 20px;border-radius:var(--radius-m);background:rgba(255,255,255,.035);border:1px solid var(--border)}
.metric b{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:.01em}
.metric span{font-size:13px;color:var(--muted)}

/* 倒计时 */
.count-bar{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  padding:26px 30px;
  border-color:rgba(255,199,107,.28);
  background:linear-gradient(120deg,rgba(255,199,107,.08),rgba(20,29,55,.7));
}
.count-info{flex:1;min-width:280px}
.count-info h2{font-size:21px;font-weight:800;margin-top:10px}
.count-info p{color:var(--muted);font-size:14.5px;margin-top:8px}
.count-info p b{color:var(--gold);font-size:17px}
.count-right{display:flex;flex-direction:column;gap:14px;align-items:flex-end}
.clock{display:flex;gap:10px}
.clock-unit{
  min-width:64px;text-align:center;padding:10px 8px;border-radius:14px;
  background:rgba(6,10,22,.78);border:1px solid var(--border-strong);
  box-shadow:inset 0 0 20px rgba(79,124,255,.14);
}
.clock-unit span{display:block;font-size:22px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.clock-unit em{font-style:normal;font-size:12px;color:var(--muted-2)}
.count-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.quota{height:6px;border-radius:6px;background:rgba(255,255,255,.07);margin-top:18px;overflow:hidden}
.quota span{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#ffc76b,#ff7a59);box-shadow:0 0 16px rgba(255,150,90,.6)}
.quota-note{margin-top:10px;font-size:13px;color:var(--muted-2)}

/* 活动亮点 */
.hl-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.hl-card{
  padding:26px;border-radius:var(--radius-l);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;gap:10px;
}
.hl-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:0 20px 42px rgba(2,6,20,.62),0 0 24px rgba(79,124,255,.18)}
.hl-card h3{font-size:17.5px;font-weight:700}
.hl-card p{font-size:14.5px;color:var(--muted)}
.hl-icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-size:19px;color:#04101f;font-weight:800;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
  box-shadow:0 0 18px rgba(79,124,255,.45);
}
.hl-card.feature{grid-column:span 3;background:linear-gradient(135deg,rgba(79,124,255,.18),rgba(20,29,55,.72));border-color:rgba(79,124,255,.34)}
.hl-card.span2{grid-column:span 2}
.hl-card .hl-stat{margin-top:auto;font-size:13px;color:#9fe8ff;letter-spacing:.02em}

/* 权益 */
.benefit-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.benefit{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px;border-radius:var(--radius-m);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
  transition:.28s;
}
.benefit:hover{background:rgba(79,124,255,.1);border-color:var(--border-strong);transform:translateY(-3px)}
.benefit .dot{
  width:32px;height:32px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
  font-size:14px;font-weight:800;color:#04101f;background:linear-gradient(135deg,#22d3ee,#4f7cff);
}
.benefit h4{font-size:15.5px;font-weight:700}
.benefit p{font-size:13.5px;color:var(--muted);margin-top:4px}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.step{
  position:relative;padding:26px 20px 22px;border-radius:var(--radius-m);
  background:var(--panel-2);border:1px solid var(--border);
  transition:.3s;
}
.step:hover{border-color:var(--border-strong);transform:translateY(-4px)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:18px;
  font-size:13px;font-weight:800;letter-spacing:.08em;color:#04101f;
  padding:4px 10px;border-radius:999px;
  background:linear-gradient(120deg,#4f7cff,#22d3ee);
  box-shadow:0 0 16px rgba(79,124,255,.5);
}
.step h3{font-size:16px;font-weight:700;margin-top:10px}
.step p{font-size:13.5px;color:var(--muted);margin-top:8px}

/* 奖励阶梯 */
.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reward{
  padding:28px 24px;border-radius:var(--radius-l);
  background:linear-gradient(180deg,rgba(20,29,55,.78),rgba(11,17,36,.9));
  border:1px solid var(--border);
  position:relative;overflow:hidden;
  transition:.3s;
}
.reward::after{
  content:"";position:absolute;top:-60px;right:-40px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,124,255,.35),transparent 66%);
}
.reward:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 22px 46px rgba(2,6,20,.6)}
.reward h3{font-size:18px;font-weight:800;position:relative}
.reward .reward-value{font-size:30px;font-weight:800;margin:12px 0 6px;position:relative;background:linear-gradient(120deg,#ffc76b,#ff9a3c);-webkit-background-clip:text;background-clip:text;color:transparent}
.reward p{font-size:14px;color:var(--muted);position:relative}
.reward ul{margin-top:16px;display:flex;flex-direction:column;gap:9px;position:relative}
.reward li{font-size:13.5px;color:#c3d3f2;display:flex;gap:9px;align-items:flex-start}
.reward li::before{content:"◆";color:var(--cyan);font-size:10px;line-height:1.9}

/* 专题与频道 */
.topic-wall{display:flex;flex-wrap:wrap;gap:11px}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.channel-card{
  padding:24px;border-radius:var(--radius-l);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(14px);
  display:flex;flex-direction:column;gap:10px;
  transition:.3s;
}
.channel-card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.45);box-shadow:0 20px 44px rgba(2,6,20,.6),0 0 26px rgba(34,211,238,.16)}
.channel-card .ch-idx{font-size:12px;letter-spacing:.14em;color:var(--muted-2);font-weight:700}
.channel-card h3{font-size:18px;font-weight:800}
.channel-card p{font-size:14px;color:var(--muted)}
.channel-card .ch-link{margin-top:8px;font-size:14px;font-weight:700;color:#8fe6ff;display:inline-flex;align-items:center;gap:6px}
.channel-card .ch-link::after{content:"→";transition:.24s}
.channel-card:hover .ch-link::after{transform:translateX(4px)}
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}

/* 横滑轨 */
.rail{display:flex;gap:18px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(79,124,255,.6);border-radius:6px}
.rail-card{
  flex:0 0 292px;scroll-snap-align:start;
  border-radius:var(--radius-l);overflow:hidden;
  background:var(--panel-2);border:1px solid var(--border);
  transition:.3s;
}
.rail-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 20px 40px rgba(2,6,20,.6)}
.rail-thumb{height:156px;position:relative;display:grid;place-items:center;overflow:hidden}
.rail-thumb.t1{background:linear-gradient(135deg,#1b3a8f,#22d3ee)}
.rail-thumb.t2{background:linear-gradient(135deg,#4b2a8f,#8b5cf6)}
.rail-thumb.t3{background:linear-gradient(135deg,#0f4f6b,#22d3ee)}
.rail-thumb.t4{background:linear-gradient(135deg,#7a3a1f,#ffc76b)}
.rail-thumb.t5{background:linear-gradient(135deg,#153a63,#4f7cff)}
.rail-thumb.t6{background:linear-gradient(135deg,#3a1f5c,#ff7ac6)}
.rail-thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 20%,rgba(255,255,255,.28),transparent 58%)}
.rail-thumb b{position:relative;font-size:15px;font-weight:800;color:#04101f;background:rgba(255,255,255,.82);padding:6px 14px;border-radius:999px;z-index:2}
.rail-body{padding:18px 20px 22px}
.rail-body h3{font-size:16px;font-weight:700}
.rail-body p{font-size:13.5px;color:var(--muted);margin-top:8px}
.rail-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;font-size:12.5px;color:var(--muted-2)}

/* 数据看板 */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi{
  padding:24px;border-radius:var(--radius-l);
  background:linear-gradient(180deg,rgba(20,29,55,.7),rgba(10,16,34,.9));
  border:1px solid var(--border);position:relative;overflow:hidden;
}
.kpi::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,#4f7cff,#22d3ee)}
.kpi b{font-size:32px;font-weight:800;letter-spacing:-.01em;display:block;color:#fff}
.kpi span{font-size:13.5px;color:var(--muted)}
.kpi .trend{margin-top:12px;font-size:12.5px;color:#7ff0c4;display:inline-flex;align-items:center;gap:6px}
.bar-chart{display:flex;align-items:flex-end;gap:12px;height:150px;margin-top:32px;padding:0 4px}
.bar-chart .bar{flex:1;border-radius:10px 10px 4px 4px;background:linear-gradient(180deg,#4f7cff,rgba(79,124,255,.22));position:relative;transition:.4s}
.bar-chart .bar:hover{background:linear-gradient(180deg,#22d3ee,rgba(34,211,238,.22))}
.bar-chart .bar span{position:absolute;bottom:-26px;left:50%;transform:translateX(-50%);font-size:12px;color:var(--muted-2);white-space:nowrap}

/* 时间轴 */
.timeline{position:relative;padding-left:30px;margin-top:10px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,rgba(79,124,255,.9),rgba(34,211,238,.15))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-30px;top:8px;width:16px;height:16px;border-radius:50%;background:#0a1024;border:2px solid var(--cyan);box-shadow:0 0 12px rgba(34,211,238,.7)}
.tl-item .tl-time{font-size:12.5px;color:#8fe6ff;letter-spacing:.05em;font-weight:700}
.tl-item h3{font-size:16.5px;font-weight:700;margin-top:6px}
.tl-item p{font-size:14px;color:var(--muted);margin-top:6px}

/* 保障 */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.guard{
  display:flex;gap:14px;align-items:center;
  padding:20px;border-radius:var(--radius-m);
  background:rgba(255,255,255,.03);border:1px solid var(--border);
  transition:.28s;
}
.guard:hover{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.07)}
.guard .g-ico{
  width:40px;height:40px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#bff2ff;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.35);
}
.guard h4{font-size:15px;font-weight:700}
.guard p{font-size:13px;color:var(--muted);margin-top:3px}

/* 口碑 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.voice{
  padding:24px;border-radius:var(--radius-l);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(12px);
  display:flex;flex-direction:column;gap:14px;
  transition:.3s;
}
.voice:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.voice .stars{color:var(--gold);letter-spacing:.18em;font-size:14px}
.voice p{font-size:14.5px;color:#d3defa}
.voice-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.voice-avatar{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;color:#04101f;font-size:15px;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
}
.voice-user b{font-size:14px;display:block}
.voice-user span{font-size:12.5px;color:var(--muted-2)}

/* 榜单 */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:16px 20px;border-radius:var(--radius-m);
  background:rgba(255,255,255,.035);border:1px solid var(--border);
  transition:.28s;
}
.rank-item:hover{background:rgba(79,124,255,.1);border-color:var(--border-strong);transform:translateX(4px)}
.rank-no{
  width:34px;height:34px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#cfe0ff;background:rgba(79,124,255,.14);border:1px solid var(--border-strong);
}
.rank-item:nth-child(1) .rank-no{color:#2a1600;background:linear-gradient(135deg,#ffc76b,#ff9a3c);border-color:transparent}
.rank-item:nth-child(2) .rank-no{color:#0b1020;background:linear-gradient(135deg,#dfe8ff,#a9bbe6);border-color:transparent}
.rank-item:nth-child(3) .rank-no{color:#2a1600;background:linear-gradient(135deg,#ffb27a,#d98b52);border-color:transparent}
.rank-item h3{font-size:15.5px;font-weight:700}
.rank-item p{font-size:13px;color:var(--muted);margin-top:2px}
.rank-item .rank-val{margin-left:auto;font-size:14px;font-weight:800;color:#8fe6ff;white-space:nowrap}

/* 资讯 */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.news-item{
  padding:22px;border-radius:var(--radius-m);
  background:var(--panel-2);border:1px solid var(--border);
  transition:.28s;
}
.news-item:hover{border-color:var(--border-strong);transform:translateY(-3px)}
.news-item .n-date{font-size:12.5px;color:var(--muted-2);letter-spacing:.04em}
.news-item h3{font-size:16.5px;font-weight:700;margin-top:8px}
.news-item p{font-size:14px;color:var(--muted);margin-top:8px}

/* 对比 */
.compare{
  border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--border);background:var(--panel-2);
}
.compare-row{display:grid;grid-template-columns:1.3fr 1fr 1fr;align-items:center}
.compare-row + .compare-row{border-top:1px solid rgba(122,160,255,.12)}
.compare-row > div{padding:18px 22px;font-size:14.5px}
.compare-head{background:rgba(79,124,255,.14);font-weight:700;color:#dce7ff}
.compare-row .col-a{color:#c9ffef}
.compare-row .col-b{color:var(--muted)}
.compare-row .col-a::before{content:"✓ ";color:#5ef0b8}
.compare-row .col-b::before{content:"— ";color:var(--muted-2)}

/* 报名 */
.join-wrap{
  display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;
  padding:38px;border-radius:var(--radius-l);
  background:linear-gradient(125deg,rgba(79,124,255,.16),rgba(11,17,36,.92) 58%);
  border:1px solid rgba(79,124,255,.32);
  box-shadow:var(--shadow),0 0 40px rgba(79,124,255,.14);
}
.join-left h2{font-size:clamp(23px,3vw,31px);font-weight:800;line-height:1.35}
.join-left p{color:var(--muted);font-size:15px;margin-top:14px}
.join-points{margin-top:22px;display:flex;flex-direction:column;gap:11px}
.join-points li{font-size:14.5px;color:#c9d8f7;display:flex;gap:10px;align-items:flex-start}
.join-points li::before{content:"●";color:var(--cyan);font-size:9px;line-height:2.2}
.join-form{display:grid;gap:14px;padding:26px;border-radius:var(--radius-l);background:rgba(6,10,22,.72);border:1px solid var(--border)}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13px;color:var(--muted)}
.field input,.field select{
  padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border-strong);
  color:#fff;font-size:14.5px;transition:.24s;
}
.field input::placeholder{color:#59678c}
.field input:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16);background:rgba(34,211,238,.06)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.privacy{font-size:12.5px;color:var(--muted-2);line-height:1.7}
.form-tip{font-size:13.5px;color:#7ff0c4;display:none}
.form-tip.show{display:block}

/* 页脚 */
.site-footer{
  margin-top:40px;background:#04060c;
  border-top:1px solid rgba(122,160,255,.14);
  padding:58px 0 28px;position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
.footer-brand b{font-size:17px;font-weight:800}
.footer-desc{font-size:13.5px;color:var(--muted);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:#dce7ff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:var(--muted);transition:.22s}
.footer-col a:hover{color:#8fe6ff;padding-left:4px}
.footer-bottom{
  margin-top:42px;padding-top:22px;
  border-top:1px solid rgba(122,160,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:var(--muted-2);
}
.footer-bottom span{letter-spacing:.02em}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:62px 0}
  .hl-grid{grid-template-columns:repeat(4,1fr)}
  .hl-card.feature{grid-column:span 4}
  .hl-card.span2{grid-column:span 2}
  .steps{grid-template-columns:repeat(3,1fr);gap:22px 16px}
  .benefit-list,.guard-grid,.voice-grid,.channel-grid,.reward-grid{grid-template-columns:repeat(2,1fr)}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .join-wrap{grid-template-columns:1fr;gap:26px}
  .hero-metrics{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .header-inner{height:64px}
  .header-cta{display:none}
  .hero-banner{height:160px}
  .creator-card{gap:16px;padding:20px;margin-top:-42px}
  .avatar{width:70px;height:70px;border-radius:22px;font-size:27px}
  .creator-actions{width:100%}
  .creator-actions .btn{flex:1}
  .section{padding:52px 0}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .hl-card.feature,.hl-card.span2{grid-column:span 2}
  .steps{grid-template-columns:repeat(2,1fr)}
  .benefit-list,.guard-grid,.voice-grid,.channel-grid,.reward-grid,.news-list{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1.1fr 1fr 1fr}
  .compare-row > div{padding:14px 14px;font-size:13px}
  .count-bar{padding:22px}
  .count-right{align-items:flex-start;width:100%}
  .count-actions{justify-content:flex-start}
  .clock-unit{min-width:56px}
  .clock-unit span{font-size:19px}
  .form-row{grid-template-columns:1fr}
  .bar-chart{height:120px;gap:8px}
  .bar-chart .bar span{font-size:11px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .brand-text{font-size:17px}
  .brand-text span{display:none}
  .hero-title{font-size:26px}
  .hero-sub{font-size:16px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:12px}
  .metric b{font-size:20px}
  .hl-grid{grid-template-columns:1fr}
  .hl-card.feature,.hl-card.span2{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .kpi-grid{grid-template-columns:1fr}
  .rail-card{flex:0 0 84%}
  .compare-row{grid-template-columns:1fr;gap:0}
  .compare-row > div{padding:12px 16px}
  .compare-head{display:none}
  .compare-row > div::before{font-weight:700;color:var(--muted-2);display:block;font-size:11.5px;letter-spacing:.06em;margin-bottom:2px}
  .compare-row > div:nth-child(1)::before{content:"对比项"}
  .compare-row > div:nth-child(2)::before{content:"啪啪小视频创作通道"}
  .compare-row > div:nth-child(3)::before{content:"普通发布方式"}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .join-wrap{padding:24px}
  .clock{gap:7px}
  .clock-unit{min-width:50px;padding:8px 4px}
}

/* roulang page: category3 */
:root{
 --bg:#05060d;
 --bg-2:#080c18;
 --panel:rgba(20,29,55,.62);
 --panel-2:rgba(14,21,42,.85);
 --panel-solid:#0e152b;
 --border:rgba(122,160,255,.16);
 --border-strong:rgba(122,160,255,.32);
 --text:#eaf0ff;
 --muted:#93a1c4;
 --muted-2:#6c7ba0;
 --primary:#4f7cff;
 --cyan:#22d3ee;
 --violet:#8b5cf6;
 --gold:#ffc76b;
 --radius-l:24px;
 --radius-m:16px;
 --radius-s:10px;
 --shadow:0 18px 44px rgba(2,6,20,.6);
 --glow:0 0 26px rgba(79,124,255,.42);
 --container:1200px;
}
/* roulang page: category3 */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--bg);
 color:var(--text);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(900px 520px at 12% -6%,rgba(79,124,255,.20),transparent 62%),
 radial-gradient(760px 480px at 88% 4%,rgba(34,211,238,.14),transparent 60%),
 radial-gradient(700px 520px at 60% 100%,rgba(139,92,246,.13),transparent 62%);
 pointer-events:none;
 z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:min(var(--container),92%);margin:0 auto;position:relative;z-index:2}
.section{padding:76px 0;position:relative}
.section-tight{padding:36px 0}
.section-alt{
 background:linear-gradient(180deg,rgba(10,16,36,0),rgba(13,21,44,.72) 22%,rgba(13,21,44,.72) 78%,rgba(10,16,36,0));
 border-top:1px solid rgba(122,160,255,.08);
 border-bottom:1px solid rgba(122,160,255,.08);
}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 font-size:13px;letter-spacing:.06em;
 color:#b9d4ff;
 background:rgba(79,124,255,.12);
 border:1px solid rgba(79,124,255,.28);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h2.title{font-size:clamp(24px,3.2vw,34px);line-height:1.35;letter-spacing:.01em;font-weight:700;margin:0}
h2.title em{font-style:normal;color:#8fb4ff}
.section-head p{margin:14px 0 0;color:var(--muted);font-size:15.5px}
.section-head.center p{margin-left:auto;margin-right:auto}
h3{font-size:18px;line-height:1.5;margin:0;font-weight:700}
p{margin:0}
/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;border-radius:999px;
 font-size:15px;font-weight:600;line-height:1;
 transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
 white-space:nowrap;
}
.btn-glow{background:linear-gradient(120deg,#4f7cff,#22d3ee);color:#04101f;box-shadow:0 0 22px rgba(79,124,255,.5)}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(79,124,255,.78)}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 16px rgba(79,124,255,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border:1px solid var(--border-strong);color:#dce7ff}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-gold{background:linear-gradient(120deg,#ffc76b,#ff9a3c);color:#2a1600;box-shadow:0 0 22px rgba(255,181,86,.38)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(255,181,86,.6)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
/* 徽章与标签 */
.badge{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:600;letter-spacing:.02em;
 border:1px solid var(--border-strong);
 color:#c6d8ff;background:rgba(79,124,255,.1);
}
.badge-live{color:#ffd9d9;background:rgba(255,86,86,.14);border-color:rgba(255,86,86,.4)}
.badge-live::before{content:"";width:7px;height:7px;border-radius:50%;background:#ff5b5b;box-shadow:0 0 10px #ff5b5b;animation:pulse 1.6s infinite}
.badge-gold{color:#ffe0ad;background:rgba(255,199,107,.13);border-color:rgba(255,199,107,.4)}
.badge-cyan{color:#b6f4ff;background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.38)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.tag{
 display:inline-block;padding:8px 16px;border-radius:999px;
 font-size:14px;color:#bed0f5;
 background:rgba(255,255,255,.04);
 border:1px solid var(--border);
 transition:.24s;
}
.tag:hover{color:#fff;border-color:var(--cyan);background:rgba(34,211,238,.12);transform:translateY(-2px)}
/* 头部 */
.site-header{
 position:sticky;top:0;z-index:80;
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 background:rgba(5,7,14,.78);
 border-bottom:1px solid rgba(122,160,255,.12);
}
.header-inner{
 width:min(var(--container),92%);margin:0 auto;
 display:flex;align-items:center;justify-content:space-between;
 height:70px;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:12px;
 display:grid;place-items:center;
 font-weight:800;font-size:19px;color:#04101f;
 background:linear-gradient(135deg,#4f7cff,#22d3ee);
 box-shadow:0 0 20px rgba(79,124,255,.55);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text span{color:var(--muted-2);font-size:12px;font-weight:500;display:block;line-height:1.2;letter-spacing:.08em}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
 width:44px;height:44px;border-radius:14px;
 border:1px solid var(--border-strong);
 background:rgba(255,255,255,.04);
 display:grid;place-items:center;gap:5px;align-content:center;
 transition:.25s;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#cfe0ff;transition:.28s}
.menu-toggle:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.3)}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* 抽屉导航 */
.drawer{position:fixed;inset:0;z-index:95;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{
 position:absolute;inset:0;background:rgba(3,6,14,.74);
 backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
 opacity:0;transition:opacity .35s ease;
}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
 position:absolute;top:0;right:0;height:100%;
 width:min(430px,100%);
 background:linear-gradient(180deg,rgba(11,17,36,.98),rgba(6,10,22,.99));
 border-left:1px solid var(--border-strong);
 box-shadow:-26px 0 60px rgba(2,6,20,.7);
 padding:22px;
 display:flex;flex-direction:column;gap:20px;
 overflow-y:auto;
 transform:translateX(102%);
 transition:transform .38s cubic-bezier(.22,.8,.28,1);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px}
.drawer-close{
 width:40px;height:40px;border-radius:12px;font-size:22px;line-height:1;
 border:1px solid var(--border-strong);color:#cfe0ff;
 background:rgba(255,255,255,.04);
 transition:.24s;
}
.drawer-close:hover{border-color:var(--cyan);background:rgba(34,211,238,.12)}
.drawer-nav{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.drawer-link{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:14px 16px;border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:rgba(255,255,255,.03);
 font-size:16px;font-weight:600;color:#dfe8ff;
 transition:.24s;
}
.drawer-link span{font-size:12.5px;font-weight:500;color:var(--muted-2)}
.drawer-link:hover{border-color:var(--cyan);background:rgba(34,211,238,.1);transform:translateX(-3px)}
.drawer-link.active{
 border-color:rgba(79,124,255,.55);
 background:linear-gradient(120deg,rgba(79,124,255,.24),rgba(34,211,238,.12));
 box-shadow:var(--glow);
}
.drawer-note{color:var(--muted-2);font-size:13px;line-height:1.7;border-top:1px dashed rgba(122,160,255,.2);padding-top:16px}
/* Hero */
.hero-cat{padding:70px 0 56px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:center}
.hero-cat h1{
 font-size:clamp(27px,4vw,44px);
 line-height:1.28;
 margin:0 0 18px;
 font-weight:800;
 letter-spacing:.01em;
}
.hero-cat h1 em{
 font-style:normal;
 background:linear-gradient(120deg,#8fb4ff,#22d3ee);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:16px;max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.glass{
 background:var(--panel);
 border:1px solid var(--border);
 border-radius:var(--radius-l);
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
.invite-card{padding:26px}
.invite-card .card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.invite-card .count{
 font-size:38px;font-weight:800;line-height:1.1;
 background:linear-gradient(120deg,#8fb4ff,#22d3ee);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.invite-card .count small{font-size:15px;font-weight:600;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.progress{height:12px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin:16px 0 10px}
.progress-bar{height:100%;border-radius:999px;background:linear-gradient(90deg,#4f7cff,#22d3ee);box-shadow:0 0 18px rgba(34,211,238,.55);animation:fill 1.6s ease both}
@keyframes fill{from{width:0}}
.progress-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted-2)}
.reward-note{
 margin-top:18px;padding:14px 16px;border-radius:var(--radius-m);
 border:1px dashed rgba(255,199,107,.4);
 background:rgba(255,199,107,.08);
 color:#ffe3b3;font-size:14px;
 display:flex;gap:10px;align-items:flex-start;
}
.reward-note i{color:var(--gold);margin-top:3px}
.invite-card .btn{margin-top:18px}
.mini-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:9px}
.mini-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted)}
.mini-list i{color:var(--cyan);font-size:12px}
/* 数据速览 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
 padding:22px;
 border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:linear-gradient(180deg,rgba(20,29,55,.7),rgba(11,17,36,.7));
 transition:.28s;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.stat-card b{display:block;font-size:30px;font-weight:800;line-height:1.2;color:#eaf0ff}
.stat-card b span{font-size:15px;color:var(--cyan);margin-left:4px}
.stat-card p{font-size:13.5px;color:var(--muted-2);margin-top:6px}
/* 权益阶梯 */
.ladder{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:8px}
.tier{
 padding:22px 18px;border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:rgba(255,255,255,.03);
 display:flex;flex-direction:column;gap:12px;
 transition:.28s;
}
.tier:hover{border-color:var(--border-strong);transform:translateY(-4px)}
.tier .tier-num{
 font-size:13px;color:var(--muted-2);letter-spacing:.06em;
}
.tier b{font-size:17px}
.tier ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.tier li{font-size:13.5px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.tier li i{color:var(--primary);margin-top:5px;font-size:10px}
.tier.active{
 border-color:rgba(79,124,255,.6);
 background:linear-gradient(180deg,rgba(79,124,255,.2),rgba(34,211,238,.08));
 box-shadow:var(--glow);
}
.tier.active li i{color:var(--cyan)}
.reward-preview{
 margin-top:26px;padding:22px;border-radius:var(--radius-l);
 border:1px solid var(--border);
 background:var(--panel-2);
 display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.reward-preview .rp-item{display:flex;gap:12px;align-items:flex-start}
.reward-preview i{color:var(--gold);font-size:18px;margin-top:3px}
.reward-preview b{font-size:15px;display:block}
.reward-preview p{font-size:13.5px;color:var(--muted-2);margin-top:4px}
/* 能力卡 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature{
 padding:24px;border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:linear-gradient(180deg,rgba(20,29,55,.62),rgba(11,17,36,.62));
 transition:.28s;
}
.feature:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.feature .ico{
 width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
 font-size:18px;color:#04101f;
 background:linear-gradient(135deg,#4f7cff,#22d3ee);
 box-shadow:0 0 18px rgba(79,124,255,.42);
 margin-bottom:16px;
}
.feature h3{font-size:16.5px;margin-bottom:8px}
.feature p{font-size:14px;color:var(--muted)}
/* 频道矩阵 */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel{
 position:relative;overflow:hidden;
 padding:26px;border-radius:var(--radius-l);
 border:1px solid var(--border);
 background:var(--panel-2);
 transition:.3s;
 display:flex;flex-direction:column;gap:12px;
}
.channel::after{
 content:"";position:absolute;inset:auto -30% -60% auto;width:220px;height:220px;border-radius:50%;
 background:radial-gradient(circle,rgba(79,124,255,.35),transparent 66%);
 transition:.35s;
}
.channel:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.channel:hover::after{transform:scale(1.2)}
.channel h3{font-size:19px}
.channel p{font-size:14px;color:var(--muted);position:relative;z-index:1}
.channel .channel-foot{margin-top:auto;display:flex;align-items:center;gap:8px;color:#a9c4ff;font-size:14px;font-weight:600}
.channel.cur{border-color:rgba(34,211,238,.5);box-shadow:0 0 22px rgba(34,211,238,.16)}
/* 排行榜 */
.rank-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start}
.rank-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.rank-item{
 display:flex;align-items:center;gap:16px;
 padding:16px 18px;border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:rgba(255,255,255,.03);
 transition:.26s;
}
.rank-item:hover{border-color:var(--border-strong);background:rgba(79,124,255,.1);transform:translateX(4px)}
.rank-no{
 width:34px;height:34px;border-radius:11px;flex:0 0 34px;
 display:grid;place-items:center;font-weight:800;font-size:14px;
 background:rgba(255,255,255,.06);color:#c6d8ff;
}
.rank-item:nth-child(1) .rank-no{background:linear-gradient(135deg,#ffc76b,#ff9a3c);color:#2a1600}
.rank-item:nth-child(2) .rank-no{background:linear-gradient(135deg,#cfd9ff,#8fa3d6);color:#101833}
.rank-item:nth-child(3) .rank-no{background:linear-gradient(135deg,#f0a884,#c9744d);color:#2a1100}
.rank-main{flex:1;min-width:0}
.rank-main b{font-size:15.5px;display:block}
.rank-main span{font-size:13px;color:var(--muted-2)}
.rank-val{font-size:16px;font-weight:700;color:#9fd8ff;white-space:nowrap}
.rank-side{padding:24px;border-radius:var(--radius-l);border:1px solid var(--border);background:var(--panel)}
.rank-side h3{font-size:17px;margin-bottom:12px}
.rank-side ul{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.rank-side li{font-size:14px;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.rank-side li i{color:var(--violet);margin-top:5px;font-size:11px}
/* 口碑 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.voice{
 padding:24px;border-radius:var(--radius-m);
 border:1px solid var(--border);
 background:linear-gradient(180deg,rgba(20,29,55,.66),rgba(11,17,36,.66));
 transition:.28s;
 display:flex;flex-direction:column;gap:16px;
}
.voice:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.voice p{font-size:14.5px;color:#d6e1ff}
.voice-foot{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
 width:42px;height:42px;border-radius:50%;flex:0 0 42px;
 display:grid;place-items:center;font-weight:800;color:#04101f;
 background:linear-gradient(135deg,#4f7cff,#22d3ee);
}
.voice-foot b{font-size:14.5px;display:block}
.voice-foot span{font-size:12.5px;color:var(--muted-2)}
.guard-band{
 margin-top:24px;padding:20px 24px;border-radius:var(--radius-m);
 border:1px solid var(--border-strong);
 background:linear-gradient(120deg,rgba(79,124,255,.14),rgba(34,211,238,.08));
 display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.guard-band p{font-size:14px;color:#cfdcff;display:flex;gap:10px;align-items:center}
.guard-band i{color:var(--cyan)}
/* 动态 */
.news-list{list-style:none;padding:0;margin:0;display:grid;gap:2px}
.news-item{
 display:flex;gap:20px;align-items:flex-start;
 padding:20px 4px;border-bottom:1px solid rgba(122,160,255,.12);
 transition:.26s;
}
.news-item:hover{padding-left:10px;border-color:var(--border-strong)}
.news-date{
 flex:0 0 92px;font-size:13px;color:var(--muted-2);letter-spacing:.04em;padding-top:3px;
}
.news-body b{font-size:16px;display:block;margin-bottom:6px}
.news-body p{font-size:14px;color:var(--muted)}
/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{
 border:1px solid var(--border);
 border-radius:var(--radius-m);
 background:rgba(255,255,255,.03);
 overflow:hidden;
 transition:.26s;
}
.faq-item[open]{border-color:var(--border-strong);background:rgba(79,124,255,.08)}
.faq-item summary{
 cursor:pointer;list-style:none;
 padding:18px 22px;
 font-size:15.5px;font-weight:600;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
 font-size:12px;color:var(--cyan);transition:.3s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted)}
/* CTA */
.cta-band{
 padding:46px 40px;border-radius:var(--radius-l);
 border:1px solid rgba(79,124,255,.36);
 background:
 radial-gradient(600px 240px at 12% 0%,rgba(79,124,255,.28),transparent 66%),
 radial-gradient(520px 240px at 88% 100%,rgba(34,211,238,.2),transparent 66%),
 rgba(11,17,36,.9);
 box-shadow:var(--shadow);
 display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);margin:0 0 12px}
.cta-band p{color:var(--muted);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* 页脚 */
.site-footer{
 border-top:1px solid rgba(122,160,255,.14);
 background:linear-gradient(180deg,rgba(8,12,24,.4),rgba(4,6,13,.96));
 padding:54px 0 26px;
 margin-top:20px;
 position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-desc{color:var(--muted);font-size:14px;margin-top:14px;max-width:330px}
.footer-col h4{font-size:15px;margin:0 0 14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:.24s}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{
 margin-top:40px;padding-top:20px;
 border-top:1px solid rgba(122,160,255,.12);
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 font-size:13px;color:var(--muted-2);
}
/* 响应式 */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px}
 .stats-grid{grid-template-columns:repeat(2,1fr)}
 .ladder{grid-template-columns:repeat(2,1fr)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .channel-grid,.voice-grid{grid-template-columns:1fr 1fr}
 .rank-wrap{grid-template-columns:1fr}
 .reward-preview{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
 .section{padding:58px 0}
 .site-header .header-inner{height:64px}
 .channel-grid,.voice-grid{grid-template-columns:1fr}
 .cta-band{padding:34px 24px}
 .news-item{flex-direction:column;gap:8px}
 .news-date{flex:0 0 auto;padding-top:0}
 .brand-text{font-size:17px}
}
@media (max-width:520px){
 .brand-text span{display:none}
 .header-cta{display:none}
 .stats-grid,.ladder,.grid-4{grid-template-columns:1fr}
 .hero-cat{padding:48px 0 40px}
 .hero-actions .btn{width:100%}
 .cta-actions{width:100%}
 .cta-actions .btn{width:100%}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
/* ============================================================
   啪啪小视频 · 设计系统（与首页一致）
   ============================================================ */
:root{
  --bg:#05060d;
  --bg-2:#080c18;
  --panel:rgba(20,29,55,.62);
  --panel-2:rgba(14,21,42,.85);
  --panel-solid:#0e152b;
  --border:rgba(122,160,255,.16);
  --border-strong:rgba(122,160,255,.32);
  --text:#eaf0ff;
  --muted:#93a1c4;
  --muted-2:#6c7ba0;
  --primary:#4f7cff;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --gold:#ffc76b;
  --radius-l:24px;
  --radius-m:16px;
  --radius-s:10px;
  --shadow:0 18px 44px rgba(2,6,20,.6);
  --glow:0 0 26px rgba(79,124,255,.42);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(79,124,255,.20),transparent 62%),
    radial-gradient(760px 480px at 88% 4%,rgba(34,211,238,.14),transparent 60%),
    radial-gradient(700px 520px at 60% 100%,rgba(139,92,246,.13),transparent 62%);
  pointer-events:none;
  z-index:0;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(79,124,255,.45);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}
.container{width:min(var(--container),92%);margin:0 auto;position:relative;z-index:2}

/* ---------- 板块与标题 ---------- */
.section{padding:76px 0;position:relative}
.section-tight{padding:40px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(10,16,36,0),rgba(13,21,44,.72) 22%,rgba(13,21,44,.72) 78%,rgba(10,16,36,0));
  border-top:1px solid rgba(122,160,255,.08);
  border-bottom:1px solid rgba(122,160,255,.08);
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.06em;
  color:#b9d4ff;
  background:rgba(79,124,255,.12);
  border:1px solid rgba(79,124,255,.28);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h2.title{font-size:clamp(24px,3.2vw,34px);line-height:1.35;letter-spacing:.01em;font-weight:700}
h2.title em{font-style:normal;color:#8fb4ff}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
.section-head.center p{margin-left:auto;margin-right:auto}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(122,160,255,.28),transparent);margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
  text-decoration:none;
}
.btn-glow{
  background:linear-gradient(120deg,#4f7cff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 22px rgba(79,124,255,.5);
  border:0;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(79,124,255,.78);color:#04101f}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 16px rgba(79,124,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-strong);
  color:#dce7ff;
}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.1);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(120deg,#ffc76b,#ff9a3c);
  color:#2a1600;
  box-shadow:0 0 22px rgba(255,181,86,.38);
  border:0;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(255,181,86,.6);color:#2a1600}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;line-height:1.6;
  border:1px solid var(--border-strong);
  color:#c6d8ff;background:rgba(79,124,255,.1);
}
.badge-live{color:#ffd9d9;background:rgba(255,86,86,.14);border-color:rgba(255,86,86,.4)}
.badge-live::before{content:"";width:7px;height:7px;border-radius:50%;background:#ff5b5b;box-shadow:0 0 10px #ff5b5b;animation:pulse 1.6s infinite}
.badge-gold{color:#ffe0ad;background:rgba(255,199,107,.13);border-color:rgba(255,199,107,.4)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.tag{
  display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:14px;color:#bed0f5;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  transition:.24s;
}
.tag:hover{color:#fff;border-color:var(--cyan);background:rgba(34,211,238,.12);transform:translateY(-2px)}

/* ---------- 头部与抽屉导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:rgba(5,7,14,.78);
  border-bottom:1px solid rgba(122,160,255,.12);
}
.header-inner{
  width:min(var(--container),92%);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  height:70px;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:19px;color:#04101f;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
  box-shadow:0 0 20px rgba(79,124,255,.55);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand-text span{color:var(--muted-2);font-size:12px;font-weight:500;display:block;line-height:1.2;letter-spacing:.08em}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.04);
  display:grid;place-items:center;gap:5px;align-content:center;
  transition:.25s;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#cfe0ff;transition:.28s}
.menu-toggle:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.3)}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{position:fixed;inset:0;z-index:95;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;background:rgba(3,6,14,.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;transition:opacity .35s ease;
}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;
  width:min(430px,100%);
  background:linear-gradient(180deg,rgba(14,21,42,.98),rgba(8,12,24,.98));
  border-left:1px solid var(--border-strong);
  box-shadow:-24px 0 60px rgba(2,6,20,.7);
  padding:26px 26px 34px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .38s cubic-bezier(.22,.68,.24,1);
  display:flex;flex-direction:column;gap:22px;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:14px;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase}
.drawer-close{
  width:38px;height:38px;border-radius:12px;
  border:1px solid var(--border);
  display:grid;place-items:center;font-size:20px;line-height:1;color:#cfe0ff;
  transition:.24s;
}
.drawer-close:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.12)}
.drawer-label{font-size:13px;color:var(--muted-2);letter-spacing:.1em;margin-bottom:4px}
.drawer-nav{display:flex;flex-direction:column;gap:10px}
.drawer-link{
  display:flex;align-items:center;gap:14px;
  padding:15px 16px;border-radius:var(--radius-m);
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  transition:.26s;
}
.drawer-link .num{font-size:13px;font-weight:700;color:var(--muted-2);letter-spacing:.06em}
.drawer-link .txt{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.4}
.drawer-link .txt em{font-style:normal;font-size:13px;font-weight:400;color:var(--muted);margin-top:3px}
.drawer-link:hover{border-color:var(--cyan);background:rgba(34,211,238,.1);transform:translateX(-3px)}
.drawer-link.active{
  border-color:rgba(79,124,255,.55);
  background:linear-gradient(120deg,rgba(79,124,255,.22),rgba(34,211,238,.12));
  box-shadow:var(--glow);
}
.drawer-link.active .num{color:#9dc0ff}
.drawer-quick{display:flex;flex-wrap:wrap;gap:9px}
.drawer-quick a{
  font-size:13.5px;padding:7px 13px;border-radius:999px;
  border:1px solid var(--border);color:#bed0f5;background:rgba(255,255,255,.03);transition:.24s;
}
.drawer-quick a:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.12)}
.drawer-foot{
  margin-top:auto;padding-top:18px;border-top:1px solid var(--border);
  font-size:13px;color:var(--muted-2);line-height:1.9;
}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted-2);margin-bottom:22px}
.crumbs a{color:var(--muted);transition:.22s}
.crumbs a:hover{color:var(--cyan)}
.crumbs .cur{color:#c6d8ff}

/* ---------- 首屏 ---------- */
.hero{padding:54px 0 70px;position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
  width:900px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,124,255,.22),transparent 68%);
  pointer-events:none;z-index:1;
}
.hero-title{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.24;font-weight:800;letter-spacing:.01em;
  margin:6px 0 18px;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#8fb4ff,#22d3ee 62%,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--muted);font-size:16.5px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 34px}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:620px}
.hero-facts li{
  padding:14px 16px;border-radius:var(--radius-m);
  border:1px solid var(--border);background:rgba(255,255,255,.03);
}
.hero-facts b{display:block;font-size:22px;font-weight:800;color:#9dc0ff;letter-spacing:.02em}
.hero-facts span{font-size:13px;color:var(--muted);line-height:1.6;display:block;margin-top:4px}

/* 玻璃面板 */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:26px;
}
.panel::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(150deg,rgba(255,255,255,.09),transparent 42%);
}
.hero-panel{padding:28px 26px 24px}
.hero-panel h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:6px}
.hero-panel h3 i{color:var(--cyan)}
.hero-panel .panel-note{font-size:13px;color:var(--muted-2);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:11px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14.5px;color:#d3ddf7;
  padding:10px 12px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.035);
  border:1px solid rgba(122,160,255,.1);
  transition:.24s;
}
.check-list li:hover{border-color:var(--border-strong);background:rgba(79,124,255,.1)}
.check-list i{color:var(--cyan);font-size:13px;margin-top:5px}
.panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed rgba(122,160,255,.24);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);
}

/* ---------- 标签墙 ---------- */
.tag-wall{display:flex;flex-wrap:wrap;gap:12px}
.tag-wall .tag{font-size:14.5px;padding:10px 20px}

/* ---------- 技巧卡片（bento） ---------- */
.tile{
  position:relative;height:100%;
  border-radius:var(--radius-l);
  border:1px solid var(--border);
  background:var(--panel);
  padding:26px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  overflow:hidden;
}
.tile:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 24px 50px rgba(2,6,20,.66),var(--glow)}
.tile-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#04101f;margin-bottom:18px;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
  box-shadow:0 0 20px rgba(79,124,255,.42);
}
.tile-icon.alt{background:linear-gradient(135deg,#8b5cf6,#4f7cff)}
.tile-icon.gold{background:linear-gradient(135deg,#ffc76b,#ff9a3c)}
.tile h3{font-size:19px;font-weight:700;margin-bottom:10px}
.tile p{font-size:14.5px;color:var(--muted)}
.tile .mini-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.tile .mini-list li{
  font-size:14px;color:#cdd9f5;padding-left:16px;position:relative;
}
.tile .mini-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.8);
}
.tile-feature{
  background:linear-gradient(150deg,rgba(79,124,255,.22),rgba(14,21,42,.9));
  border-color:rgba(122,160,255,.34);
}
.tile-feature h3{font-size:23px}
.tile-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- 参数速查表 ---------- */
.table-wrap{
  border-radius:var(--radius-l);
  border:1px solid var(--border);
  background:var(--panel-2);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto}
table.param{width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px}
table.param thead th{
  text-align:left;padding:16px 20px;
  font-size:13px;letter-spacing:.08em;color:#a9bde8;font-weight:600;
  background:rgba(79,124,255,.14);
  border-bottom:1px solid var(--border-strong);
  white-space:nowrap;
}
table.param tbody td{
  padding:15px 20px;color:#d3ddf7;
  border-bottom:1px solid rgba(122,160,255,.1);
}
table.param tbody tr{transition:background .24s}
table.param tbody tr:hover{background:rgba(79,124,255,.08)}
table.param tbody tr:last-child td{border-bottom:0}
table.param td:first-child{font-weight:700;color:#eaf0ff}
.cell-flag{display:inline-flex;align-items:center;gap:7px}
.cell-flag b{color:#8fe6f6;font-weight:700}
.table-tip{
  padding:14px 20px;font-size:13.5px;color:var(--muted);
  border-top:1px solid rgba(122,160,255,.14);
  background:rgba(8,12,24,.6);
}

/* ---------- 场景实拍方案 ---------- */
.scene-item{
  height:100%;
  display:flex;gap:18px;align-items:flex-start;
  padding:22px;border-radius:var(--radius-m);
  border:1px solid var(--border);
  background:rgba(255,255,255,.035);
  transition:.28s;
}
.scene-item:hover{border-color:var(--border-strong);background:rgba(79,124,255,.1);transform:translateY(-4px)}
.scene-no{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  color:#9dc0ff;background:rgba(79,124,255,.14);border:1px solid rgba(79,124,255,.32);
}
.scene-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.scene-item p{font-size:14.5px;color:var(--muted)}

/* ---------- 器材搭配 ---------- */
.gear{
  height:100%;padding:24px;border-radius:var(--radius-l);
  border:1px solid var(--border);
  background:linear-gradient(180deg,rgba(20,29,55,.7),rgba(10,16,36,.7));
  transition:.28s;
}
.gear:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.45);box-shadow:0 22px 46px rgba(2,6,20,.6)}
.gear i{font-size:22px;color:var(--cyan);margin-bottom:14px;display:block}
.gear h3{font-size:17px;font-weight:700;margin-bottom:8px}
.gear p{font-size:14px;color:var(--muted)}
.gear .badge{margin-top:14px}

/* ---------- 误区对比 ---------- */
.compare{
  padding:24px;border-radius:var(--radius-m);height:100%;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
}
.compare.bad{border-color:rgba(255,106,106,.28);background:rgba(255,86,86,.06)}
.compare.good{border-color:rgba(34,211,238,.3);background:rgba(34,211,238,.06)}
.compare h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:9px;margin-bottom:16px}
.compare.bad h3 i{color:#ff8484}
.compare.good h3 i{color:#4fe3f6}
.compare li{
  font-size:14.5px;color:#d3ddf7;padding:11px 0 11px 16px;position:relative;
  border-bottom:1px dashed rgba(122,160,255,.16);
}
.compare li:last-child{border-bottom:0;padding-bottom:0}
.compare li::before{
  content:"";position:absolute;left:0;top:20px;width:6px;height:6px;border-radius:50%;
}
.compare.bad li::before{background:#ff6b6b}
.compare.good li::before{background:var(--cyan)}

/* ---------- 创作者反馈 ---------- */
.voice{
  height:100%;padding:26px;border-radius:var(--radius-l);
  border:1px solid var(--border);
  background:var(--panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:.28s;
}
.voice:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 22px 46px rgba(2,6,20,.6)}
.voice .quote{font-size:15px;color:#dbe4fb;line-height:1.85}
.voice .who{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--border)}
.voice .avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;color:#04101f;background:linear-gradient(135deg,#4f7cff,#22d3ee);
}
.voice .who b{display:block;font-size:15px}
.voice .who span{font-size:13px;color:var(--muted-2)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px}
.faq details{
  border-radius:var(--radius-m);
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  padding:0;
  overflow:hidden;
  transition:.26s;
}
.faq details[open]{border-color:var(--border-strong);background:rgba(79,124,255,.09)}
.faq summary{
  cursor:pointer;list-style:none;
  padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;color:var(--cyan);line-height:1;transition:transform .26s;
}
.faq details[open] summary::after{content:"−";transform:rotate(180deg)}
.faq summary:hover{color:#fff}
.faq .answer{padding:0 22px 20px;font-size:14.5px;color:var(--muted)}

/* ---------- 转化区 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-l);
  border:1px solid rgba(122,160,255,.3);
  background:linear-gradient(135deg,rgba(79,124,255,.24),rgba(34,211,238,.12) 55%,rgba(139,92,246,.2));
  padding:44px;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.28),transparent 66%);
}
.cta-band h2{font-size:clamp(23px,3vw,32px);font-weight:800;line-height:1.35;margin-bottom:12px}
.cta-band p{color:#cdd9f5;font-size:15px;max-width:640px}
.join-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:2}
.join-form input{
  flex:1 1 260px;min-width:0;
  padding:13px 18px;border-radius:999px;
  background:rgba(5,7,14,.6);
  border:1px solid var(--border-strong);
  color:var(--text);font-size:15px;
  transition:.24s;
}
.join-form input::placeholder{color:var(--muted-2)}
.join-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16);outline:none}
.cta-note{font-size:13px;color:#b9c8ec;margin-top:14px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:2;
  margin-top:10px;
  padding:58px 0 26px;
  border-top:1px solid rgba(122,160,255,.14);
  background:linear-gradient(180deg,rgba(8,12,24,.4),rgba(5,6,13,.96));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
.footer-brand b{font-size:18px;font-weight:800}
.footer-desc{font-size:14px;color:var(--muted);max-width:330px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;color:#dfe8ff}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:.22s}
.footer-col a:hover{color:var(--cyan);padding-left:3px}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(122,160,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted-2);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:60px 0}
  .hero{padding:42px 0 56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:34px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:48px 0}
  .header-inner{height:64px}
  .header-cta{display:none}
  .brand-text{font-size:17px}
  .hero-title{font-size:clamp(26px,7vw,36px)}
  .hero-facts{grid-template-columns:1fr 1fr}
  .hero-actions{gap:10px}
  .btn{padding:11px 20px;font-size:14.5px}
  .panel,.tile,.gear,.voice{padding:20px}
  .cta-band{padding:26px 20px;border-radius:var(--radius-m)}
  .scene-item{flex-direction:column;gap:12px}
  .table-tip{font-size:12.5px}
}
@media (max-width:520px){
  .hero-facts{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .join-form input{flex:1 1 100%}
  .join-form .btn{width:100%}
  .tag-wall .tag{font-size:13.5px;padding:9px 16px}
  .drawer-panel{padding:20px 18px 26px}
  .compare h3{font-size:15px}
}

/* roulang page: category1 */
:root{
  --bg:#05060d;
  --bg-2:#080c18;
  --panel:rgba(20,29,55,.62);
  --panel-2:rgba(14,21,42,.85);
  --panel-solid:#0e152b;
  --border:rgba(122,160,255,.16);
  --border-strong:rgba(122,160,255,.32);
  --text:#eaf0ff;
  --muted:#93a1c4;
  --muted-2:#6c7ba0;
  --primary:#4f7cff;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --gold:#ffc76b;
  --radius-l:24px;
  --radius-m:16px;
  --radius-s:10px;
  --shadow:0 18px 44px rgba(2,6,20,.6);
  --glow:0 0 26px rgba(79,124,255,.42);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(79,124,255,.20),transparent 62%),
    radial-gradient(760px 480px at 88% 4%,rgba(34,211,238,.14),transparent 60%),
    radial-gradient(700px 520px at 60% 100%,rgba(139,92,246,.13),transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:min(var(--container),92%);margin:0 auto;position:relative;z-index:2}
.section{padding:76px 0;position:relative}
.section-tight{padding:34px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(10,16,36,0),rgba(13,21,44,.72) 22%,rgba(13,21,44,.72) 78%,rgba(10,16,36,0));
  border-top:1px solid rgba(122,160,255,.08);
  border-bottom:1px solid rgba(122,160,255,.08);
}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.06em;
  color:#b9d4ff;
  background:rgba(79,124,255,.12);
  border:1px solid rgba(79,124,255,.28);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h2.title{font-size:clamp(24px,3.2vw,34px);line-height:1.35;letter-spacing:.01em;font-weight:700}
h2.title em{font-style:normal;color:#8fb4ff}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
.section-head.center p{margin-left:auto;margin-right:auto}
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-glow{background:linear-gradient(120deg,#4f7cff,#22d3ee);color:#04101f;box-shadow:0 0 22px rgba(79,124,255,.5)}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(79,124,255,.78)}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 16px rgba(79,124,255,.5)}
.btn-ghost{background:rgba(255,255,255,.04);border:1px solid var(--border-strong);color:#dce7ff}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.1);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,#ffc76b,#ff9a3c);color:#2a1600;box-shadow:0 0 22px rgba(255,181,86,.38)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(255,181,86,.6)}
.btn-sm{padding:9px 18px;font-size:14px}
/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--border-strong);
  color:#c6d8ff;background:rgba(79,124,255,.1);
}
.badge-live{color:#ffd9d9;background:rgba(255,86,86,.14);border-color:rgba(255,86,86,.4)}
.badge-live::before{content:"";width:7px;height:7px;border-radius:50%;background:#ff5b5b;box-shadow:0 0 10px #ff5b5b;animation:pulse 1.6s infinite}
.badge-gold{color:#ffe0ad;background:rgba(255,199,107,.13);border-color:rgba(255,199,107,.4)}
.badge-cyan{color:#b6f2ff;background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.36)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}
.tag{
  display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:14px;color:#bed0f5;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  transition:.24s;
}
.tag:hover{color:#fff;border-color:var(--cyan);background:rgba(34,211,238,.12);transform:translateY(-2px)}
/* 头部与抽屉导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:rgba(5,7,14,.78);
  border-bottom:1px solid rgba(122,160,255,.12);
}
.header-inner{
  width:min(var(--container),92%);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  height:70px;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:19px;color:#04101f;
  background:linear-gradient(135deg,#4f7cff,#22d3ee);
  box-shadow:0 0 20px rgba(79,124,255,.55);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;line-height:1.15}
.brand-text span{color:var(--muted-2);font-size:12px;font-weight:500;display:block;line-height:1.2;letter-spacing:.08em}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.04);
  display:grid;place-items:center;gap:5px;align-content:center;
  transition:.25s;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#cfe0ff;transition:.28s}
.menu-toggle:hover{border-color:var(--cyan);box-shadow:0 0 18px rgba(34,211,238,.3)}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{position:fixed;inset:0;z-index:95;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(3,6,14,.72);backdrop-filter:blur(6px);opacity:0;transition:opacity .35s ease}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;
  width:min(430px,100%);
  background:linear-gradient(180deg,rgba(10,15,32,.985),rgba(6,9,20,.985));
  border-left:1px solid var(--border);
  box-shadow:-24px 0 60px rgba(2,6,20,.7);
  padding:24px;
  display:flex;flex-direction:column;gap:20px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .42s cubic-bezier(.22,.8,.25,1);
}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px}
.drawer-head .brand-text{font-size:17px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--border);background:rgba(255,255,255,.04);
  display:grid;place-items:center;font-size:18px;color:#cfe0ff;transition:.24s;
}
.drawer-close:hover{border-color:var(--cyan);color:#fff;background:rgba(34,211,238,.12)}
.drawer-label{font-size:12.5px;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase}
.drawer-nav{display:grid;gap:8px}
.drawer-link{
  display:flex;flex-direction:column;gap:4px;
  padding:15px 18px;border-radius:var(--radius-m);
  border:1px solid transparent;transition:.26s;
}
.drawer-link b{font-size:17px;font-weight:700}
.drawer-link span{font-size:13px;color:var(--muted-2)}
.drawer-link:hover{background:rgba(79,124,255,.1);border-color:var(--border-strong);transform:translateX(-4px)}
.drawer-link.active{background:linear-gradient(120deg,rgba(79,124,255,.22),rgba(34,211,238,.1));border-color:var(--border-strong);box-shadow:0 0 22px rgba(79,124,255,.18)}
.drawer-link.active b{color:#a9c7ff}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--border);display:grid;gap:12px}
.drawer-note{font-size:13px;color:var(--muted-2)}
/* 首屏 */
.hero{padding:60px 0 46px;position:relative}
.hero-main{max-width:900px}
.hero h1{font-size:clamp(29px,4.4vw,48px);line-height:1.24;letter-spacing:-.01em;font-weight:800}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#7fa7ff,#22d3ee 58%,#8b5cf6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;color:var(--muted);font-size:16.5px;max-width:820px}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{margin-top:34px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.hero-stats li{
  padding:15px 17px;border-radius:var(--radius-m);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(10px);
  transition:.28s;
}
.hero-stats li:hover{border-color:var(--border-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
.hero-stats b{display:block;font-size:21px;font-weight:800;color:#fff;line-height:1.3}
.hero-stats span{font-size:12.5px;color:var(--muted-2)}
/* 路线图 */
.roadmap{
  margin-top:40px;padding:26px 26px 30px;
  border-radius:var(--radius-l);
  background:var(--panel-2);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.roadmap-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.roadmap-head h2{font-size:18px}
.roadmap-head p{font-size:13.5px;color:var(--muted-2);margin-top:4px}
.roadmap-track{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.roadmap-track::before{
  content:"";position:absolute;left:6px;right:6px;top:9px;height:2px;
  background:linear-gradient(90deg,rgba(79,124,255,.7),rgba(34,211,238,.55),rgba(139,92,246,.35));
  opacity:.45;
}
.node{position:relative;padding-top:32px}
.node::before{
  content:"";position:absolute;top:2px;left:0;
  width:16px;height:16px;border-radius:50%;
  background:#0b1224;border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(79,124,255,.12);
}
.node.done::before{background:var(--primary);box-shadow:0 0 0 4px rgba(79,124,255,.18)}
.node.current::before{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 16px var(--cyan)}
.node.soon::before{border-color:var(--violet);background:#0b1224}
.node .ver{font-size:12.5px;letter-spacing:.08em;color:#9fb6e6;font-weight:700}
.node h3{font-size:16px;margin-top:6px}
.node p{font-size:13.5px;color:var(--muted);margin-top:8px}
.node .state{margin-top:12px;display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}
.node.current .state{color:#b6f2ff;border-color:rgba(34,211,238,.36);background:rgba(34,211,238,.1)}
/* 订阅条 */
.subscribe-band{
  margin-top:22px;padding:24px 26px;
  border-radius:var(--radius-l);
  background:linear-gradient(120deg,rgba(79,124,255,.18),rgba(34,211,238,.08) 62%,rgba(139,92,246,.12));
  border:1px solid var(--border-strong);
  display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:center;
}
.subscribe-band h3{font-size:18px}
.subscribe-band p{font-size:14px;color:#c3d3f5;margin-top:8px}
.subscribe-form{display:flex;flex-wrap:wrap;gap:10px}
.subscribe-form input{
  flex:1 1 200px;min-width:0;
  padding:13px 18px;border-radius:999px;
  background:rgba(6,10,22,.72);
  border:1px solid var(--border-strong);
  outline:none;transition:.26s;
}
.subscribe-form input::placeholder{color:var(--muted-2)}
.subscribe-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.form-note{flex:1 1 100%;font-size:13px;color:var(--cyan);opacity:0;transition:opacity .3s}
.form-note.show{opacity:1}
/* 拍摄场景 */
.scene-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.scene-card{
  grid-column:span 2;
  padding:18px;border-radius:var(--radius-l);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(12px);
  transition:.3s;
}
.scene-card:nth-child(1),.scene-card:nth-child(2){grid-column:span 3}
.scene-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.cover{
  height:150px;border-radius:var(--radius-m);
  border:1px solid var(--border);
  background:
    radial-gradient(120% 90% at 18% 10%,var(--g1,rgba(79,124,255,.55)),transparent 62%),
    radial-gradient(120% 100% at 88% 92%,var(--g2,rgba(34,211,238,.35)),transparent 66%),
    linear-gradient(150deg,#0b1226,#131c38);
  position:relative;overflow:hidden;
}
.cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 46%,rgba(4,8,18,.72));
}
.cover .play{
  position:absolute;left:14px;bottom:12px;z-index:2;
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(4,8,18,.6);border:1px solid rgba(255,255,255,.28);
  color:#e8f1ff;font-size:12px;backdrop-filter:blur(6px);
}
.scene-card h3{font-size:17px;margin-top:16px}
.scene-card p{font-size:14px;color:var(--muted);margin-top:8px}
.chip-row{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;padding:4px 11px;border-radius:999px;color:#bed0f5;background:rgba(255,255,255,.05);border:1px solid var(--border)}
/* 剪辑能力分组 */
.ability-wrap{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}
.ability-aside{position:sticky;top:96px}
.ability-aside h2{font-size:24px;line-height:1.4}
.ability-aside p{font-size:14.5px;color:var(--muted);margin-top:12px}
.ability-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.ability-list{display:grid;gap:14px}
.ability-row{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  padding:20px 22px;border-radius:var(--radius-m);
  background:var(--panel);border:1px solid var(--border);
  transition:.28s;
}
.ability-row:hover{border-color:var(--border-strong);transform:translateX(5px);box-shadow:var(--shadow)}
.ability-index{
  font-size:20px;font-weight:800;
  background:linear-gradient(120deg,#7fa7ff,#22d3ee);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ability-row h3{font-size:16.5px}
.ability-row p{font-size:13.8px;color:var(--muted);margin-top:6px}
.ability-row .chip-row{margin-top:0;justify-content:flex-end;max-width:230px}
/* 参数规格 */
.spec-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;align-items:center}
.spec-text h2{font-size:clamp(23px,3vw,32px);line-height:1.4}
.spec-text p{color:var(--muted);font-size:15px;margin-top:14px}
.spec-panel{
  padding:26px;border-radius:var(--radius-l);
  background:var(--panel-solid);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.spec-item{padding:15px 16px;border-radius:var(--radius-m);background:rgba(255,255,255,.03);border:1px solid var(--border);transition:.26s}
.spec-item:hover{border-color:var(--border-strong);background:rgba(79,124,255,.08)}
.spec-item dt{font-size:12.5px;color:var(--muted-2);letter-spacing:.04em}
.spec-item dd{margin:6px 0 0;font-size:15.5px;font-weight:700;color:#e6eeff}
/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-step{
  padding:24px 20px;border-radius:var(--radius-m);
  background:var(--panel-2);border:1px solid var(--border);
  position:relative;transition:.28s;
}
.flow-step:hover{border-color:var(--border-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.flow-step .num{
  font-size:13px;font-weight:800;letter-spacing:.12em;color:#8fb4ff;
}
.flow-step h3{font-size:16.5px;margin-top:10px}
.flow-step p{font-size:13.8px;color:var(--muted);margin-top:8px}
.flow-step::after{
  content:"";position:absolute;right:-10px;top:34px;width:10px;height:2px;
  background:linear-gradient(90deg,rgba(79,124,255,.7),transparent);
}
.flow-step:last-child::after{display:none}
/* 素材轨道 */
.rail{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(228px,1fr);
  gap:18px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;
}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:rgba(79,124,255,.35);border-radius:999px}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:999px}
.rail-card{scroll-snap-align:start;padding:16px;border-radius:var(--radius-m);background:var(--panel);border:1px solid var(--border);transition:.28s}
.rail-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.rail-card .cover{height:210px}
.rail-card h3{font-size:15.5px;margin-top:14px}
.rail-card p{font-size:13.5px;color:var(--muted);margin-top:6px}
.rail-meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted-2)}
/* 案例 */
.case-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:18px}
.case-card{
  padding:26px;border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(20,29,55,.72),rgba(12,18,38,.86));
  border:1px solid var(--border);
  display:flex;flex-direction:column;gap:16px;
  transition:.3s;
}
.case-card:hover{border-color:var(--border-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.case-card blockquote{margin:0;font-size:15.5px;line-height:1.8;color:#dbe6ff}
.case-card .who{font-size:13.5px;color:var(--muted-2)}
.case-data{display:flex;flex-wrap:wrap;gap:20px;margin-top:auto;padding-top:16px;border-top:1px solid var(--border)}
.case-data b{display:block;font-size:19px;color:#fff;font-weight:800}
.case-data span{font-size:12.5px;color:var(--muted-2)}
/* 频道矩阵 */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
  display:block;padding:26px;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(18,26,50,.85),rgba(11,17,36,.9));
  border:1px solid var(--border);
  transition:.3s;
}
.channel-card:hover{border-color:var(--border-strong);transform:translateY(-5px);box-shadow:var(--shadow)}
.channel-card h3{font-size:19px;margin-top:14px}
.channel-card p{font-size:14px;color:var(--muted);margin-top:10px}
.channel-card .more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:#9fc4ff}
.channel-card.active{border-color:rgba(34,211,238,.42);box-shadow:0 0 26px rgba(34,211,238,.16)}
/* FAQ */
.faq-list{display:grid;gap:12px}
.faq{
  border:1px solid var(--border);border-radius:var(--radius-m);
  background:var(--panel);padding:0 20px;transition:.28s;
}
.faq[open]{border-color:var(--border-strong);background:var(--panel-2)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 0;font-size:16px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;font-weight:400;color:#8fb4ff;
  transition:transform .28s ease;line-height:1;
}
.faq[open] summary::after{transform:rotate(45deg);color:var(--cyan)}
.faq p{padding:0 0 20px;font-size:14.5px;color:var(--muted)}
/* 收口 */
.cta-band{
  padding:42px;border-radius:var(--radius-l);
  border:1px solid var(--border-strong);
  background:
    radial-gradient(600px 220px at 16% 0,rgba(79,124,255,.28),transparent 66%),
    radial-gradient(500px 240px at 92% 100%,rgba(139,92,246,.2),transparent 70%),
    linear-gradient(120deg,rgba(14,21,42,.95),rgba(9,14,30,.95));
  display:grid;grid-template-columns:1.5fr 1fr;gap:26px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.9vw,30px);line-height:1.4}
.cta-band p{color:var(--muted);font-size:15px;margin-top:12px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
/* 页脚 */
.site-footer{
  margin-top:26px;padding:56px 0 26px;
  border-top:1px solid rgba(122,160,255,.12);
  background:linear-gradient(180deg,rgba(5,7,14,0),rgba(9,14,30,.9));
  position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;font-size:17px}
.footer-desc{color:var(--muted);font-size:14.5px;max-width:330px}
.footer-col h4{font-size:15px;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14.5px;transition:.24s;position:relative}
.footer-col a:hover{color:#fff}
.footer-col a::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:linear-gradient(90deg,var(--primary),var(--cyan));transition:width .26s}
.footer-col a:hover::after{width:100%}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(122,160,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--muted-2);font-size:13px;
}
/* 响应式 */
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .roadmap-track{grid-template-columns:repeat(2,1fr);gap:22px}
  .roadmap-track::before{display:none}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card,.scene-card:nth-child(1),.scene-card:nth-child(2){grid-column:span 1}
  .ability-wrap{grid-template-columns:1fr;gap:24px}
  .ability-aside{position:static}
  .ability-row{grid-template-columns:44px 1fr;gap:14px}
  .ability-row .chip-row{grid-column:1 / -1;justify-content:flex-start;max-width:none}
  .spec-wrap{grid-template-columns:1fr;gap:26px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-step::after{display:none}
  .case-grid{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;gap:22px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .header-inner{height:64px}
  .header-cta{display:none}
  .drawer-panel{width:100%}
  .hero{padding:44px 0 34px}
  .hero-lead{font-size:15.5px}
  .subscribe-band{grid-template-columns:1fr;padding:22px}
  .scene-grid{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .section{padding:52px 0}
  .hero h1{font-size:27px}
  .hero-stats{grid-template-columns:1fr}
  .roadmap{padding:20px}
  .scene-card,.case-card,.channel-card,.spec-panel{padding:18px}
  .btn{padding:11px 20px;font-size:14.5px}
  .rail{grid-auto-columns:minmax(200px,1fr)}
  .rail-card .cover{height:180px}
}

/* 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}