/* roulang page: index */
:root{
  --bg:#f7f5fb;
  --surface:#ffffff;
  --surface-2:#f1ecfa;
  --ink:#16121f;
  --ink-2:#585168;
  --ink-3:#8c85a0;
  --brand:#7c3aed;
  --brand-2:#ec4899;
  --brand-soft:rgba(124,58,237,.09);
  --brand-soft-2:rgba(236,72,153,.10);
  --line:rgba(22,18,31,.09);
  --line-strong:rgba(22,18,31,.16);
  --radius:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-1:0 10px 30px -18px rgba(22,18,31,.35);
  --shadow-2:0 34px 60px -34px rgba(124,58,237,.55);
  --grad:linear-gradient(120deg,#7c3aed 0%,#b13ac9 52%,#ec4899 100%);
  --container:1180px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;line-height:1.3;letter-spacing:-.2px}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(124,58,237,.45);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0;position:relative}
.section-tight{padding:48px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.7vw,33px);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:15.6px;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);background:var(--brand-soft);
  padding:7px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:11px}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,245,251,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.3px}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
  box-shadow:0 10px 22px -12px rgba(124,58,237,.9);
}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;gap:36px}
.nav-menu a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
  background:var(--grad);border-radius:2px;transform:translateX(-50%);
  transition:width .3s ease;
}
.nav-menu a:hover,.nav-menu a.is-active{color:var(--ink)}
.nav-menu a:hover::after,.nav-menu a.is-active::after{width:100%}
.nav-cta{margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;padding:0;place-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:2px auto;transition:.25s}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;transition:all .28s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 18px 34px -18px rgba(124,58,237,.95)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 24px 42px -18px rgba(124,58,237,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-soft{background:var(--brand-soft);color:var(--brand)}
.btn-soft:hover{background:var(--brand);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);
}
.badge-hot{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(236,72,153,.9)}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-2)}
.tag{display:inline-block;padding:4px 11px;border-radius:8px;font-size:12.5px;background:var(--surface-2);color:var(--ink-2);margin:0 6px 6px 0}

/* ===== Hero ===== */
.hero{padding:70px 0 30px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(124,58,237,.22),rgba(236,72,153,.10) 55%,transparent 72%);
  filter:blur(6px);pointer-events:none;
}
.hero-inner{position:relative;max-width:820px}
.hero h1{font-size:clamp(29px,4.3vw,50px);line-height:1.2;margin:20px 0 18px;letter-spacing:-1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:720px;margin-bottom:8px}
.hero-sub{font-size:15px;color:var(--ink-3);margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;font-size:13.5px;color:var(--ink-3)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note i{color:var(--brand)}

/* ===== 档位对比 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;display:flex;flex-direction:column;position:relative;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-1);border-color:var(--line-strong)}
.plan.is-featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--shadow-2);transform:translateY(-10px);
}
.plan.is-featured:hover{transform:translateY(-14px)}
.plan-flag{position:absolute;top:-13px;left:26px}
.plan h3{font-size:18px;margin:6px 0 8px}
.plan-desc{font-size:14px;color:var(--ink-2);min-height:44px;margin-bottom:16px}
.plan-price{display:flex;align-items:baseline;gap:8px;margin-bottom:18px}
.plan-price b{font-size:30px;letter-spacing:-1px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.plan-price span{font-size:13px;color:var(--ink-3)}
.plan ul{margin-bottom:24px;flex:1}
.plan li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:var(--ink-2);padding:7px 0;border-top:1px dashed var(--line)}
.plan li:first-child{border-top:0}
.plan li i{color:var(--brand);font-size:12px;margin-top:6px}

/* ===== 保障条 ===== */
.band{
  background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:30px 0}
.band-item{display:flex;gap:14px;align-items:center}
.band-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;
}
.band-item b{display:block;font-size:14.5px}
.band-item span{font-size:13px;color:var(--ink-3)}

/* ===== 价值三连 ===== */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{
  background:var(--surface);border-radius:var(--radius);padding:30px 26px;
  border:1px solid var(--line);transition:.3s ease;position:relative;overflow:hidden;
}
.value-card::after{
  content:"";position:absolute;inset:auto -30px -40px auto;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,58,237,.12),transparent 70%);
}
.value-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-1);border-color:transparent}
.value-card h3{font-size:17.5px;margin-bottom:10px}
.value-card p{font-size:14.6px;color:var(--ink-2);margin:0}
.value-num{font-size:12.5px;font-weight:800;color:var(--brand);letter-spacing:.14em;margin-bottom:14px;display:block}

/* ===== 左右分栏 ===== */
.split{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:start}
.feed-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);padding:8px 0}
.feed-item{display:flex;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line);transition:background .25s ease}
.feed-item:last-child{border-bottom:0}
.feed-item:hover{background:var(--brand-soft)}
.feed-thumb{
  width:64px;height:64px;flex:0 0 64px;border-radius:16px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:19px;
}
.feed-item:nth-child(2) .feed-thumb{background:linear-gradient(135deg,#f59e0b,#ec4899)}
.feed-item:nth-child(3) .feed-thumb{background:linear-gradient(135deg,#0ea5e9,#7c3aed)}
.feed-item:nth-child(4) .feed-thumb{background:linear-gradient(135deg,#14b8a6,#6366f1)}
.feed-body h4{font-size:15.5px;margin-bottom:5px}
.feed-body p{font-size:13.8px;color:var(--ink-2);margin:0 0 7px}
.feed-meta{font-size:12.5px;color:var(--ink-3);display:flex;gap:14px;flex-wrap:wrap}
.rank-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);padding:24px}
.rank-card h3{font-size:16.5px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.rank-card h3 i{color:var(--brand-2)}
.rank-list li{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14.2px;color:var(--ink-2)}
.rank-list li:last-child{border-bottom:0}
.rank-no{
  width:22px;height:22px;flex:0 0 22px;border-radius:7px;background:var(--surface-2);
  color:var(--ink-2);font-size:12px;font-weight:700;display:grid;place-items:center;
}
.rank-list li:nth-child(1) .rank-no,.rank-list li:nth-child(2) .rank-no,.rank-list li:nth-child(3) .rank-no{background:var(--grad);color:#fff}
.rank-name{flex:1}
.rank-val{font-size:12.5px;color:var(--ink-3)}

/* ===== 合集目录 ===== */
.collection-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.collection-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 22px;transition:.3s ease;display:flex;flex-direction:column;
}
.collection-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-1);border-color:transparent}
.collection-card h3{font-size:16px;margin-bottom:8px}
.collection-card p{font-size:13.8px;color:var(--ink-2);flex:1;margin-bottom:16px}
.collection-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.collection-foot a{color:var(--brand);font-weight:600}

/* ===== 分类入口墙 ===== */
.cat-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  position:relative;border-radius:var(--radius);padding:34px 30px;color:#fff;overflow:hidden;
  background:linear-gradient(135deg,#2c1a55,#5b21b6);
  transition:transform .32s ease,box-shadow .32s ease;
}
.cat-card:nth-child(2){background:linear-gradient(135deg,#4c1d95,#be185d)}
.cat-card:nth-child(3){background:linear-gradient(135deg,#831843,#7c3aed)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);color:#fff}
.cat-card::after{
  content:"";position:absolute;right:-50px;bottom:-60px;width:180px;height:180px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cat-card h3{font-size:19px;color:#fff;margin-bottom:10px;position:relative}
.cat-card p{font-size:14.2px;color:rgba(255,255,255,.82);position:relative;margin-bottom:18px}
.cat-card .cat-meta{position:relative;font-size:13px;color:rgba(255,255,255,.75);display:flex;gap:16px;flex-wrap:wrap}
.cat-arrow{
  position:relative;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff;
}
.cat-card:hover .cat-arrow i{transform:translateX(4px)}
.cat-arrow i{transition:transform .3s ease}

/* ===== 最新动态 ===== */
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.latest-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s ease}
.latest-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-1)}
.latest-cover{height:132px;background:var(--grad);position:relative;display:flex;align-items:flex-end;padding:14px}
.latest-card:nth-child(2) .latest-cover{background:linear-gradient(135deg,#f59e0b,#ec4899)}
.latest-card:nth-child(3) .latest-cover{background:linear-gradient(135deg,#0ea5e9,#7c3aed)}
.latest-card:nth-child(4) .latest-cover{background:linear-gradient(135deg,#14b8a6,#6366f1)}
.latest-card:nth-child(5) .latest-cover{background:linear-gradient(135deg,#db2777,#7c3aed)}
.latest-card:nth-child(6) .latest-cover{background:linear-gradient(135deg,#4338ca,#0891b2)}
.latest-body{padding:20px 22px 24px}
.latest-body h3{font-size:16px;margin-bottom:8px}
.latest-body p{font-size:13.8px;color:var(--ink-2);margin-bottom:14px}
.latest-meta{font-size:12.5px;color:var(--ink-3);display:flex;gap:14px}

/* ===== 数据深色区 ===== */
.section-dark{background:linear-gradient(135deg,#1b1030 0%,#3b1170 55%,#7c1d63 100%);color:#fff}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.data-cell{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-md);padding:26px 24px;transition:.3s ease;
}
.data-cell:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.data-cell b{display:block;font-size:32px;letter-spacing:-1px;margin-bottom:6px;
  background:linear-gradient(120deg,#fff,#f9a8d4);-webkit-background-clip:text;background-clip:text;color:transparent}
.data-cell span{font-size:13.8px;color:rgba(255,255,255,.72)}

/* ===== 场景矩阵 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scene-card{
  display:flex;gap:20px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;transition:.3s ease;
}
.scene-card:hover{border-color:transparent;box-shadow:var(--shadow-1);transform:translateY(-4px)}
.scene-icon{
  width:52px;height:52px;flex:0 0 52px;border-radius:16px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:19px;
}
.scene-card h3{font-size:16.5px;margin-bottom:8px}
.scene-card p{font-size:14.2px;color:var(--ink-2);margin:0}

/* ===== 评价墙 ===== */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.voice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;transition:.3s ease;
}
.voice-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-1)}
.voice-stars{color:#f59e0b;font-size:13px;margin-bottom:14px;letter-spacing:2px}
.voice-card p{font-size:14.4px;color:var(--ink-2);margin-bottom:18px}
.voice-user{display:flex;align-items:center;gap:12px}
.voice-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.voice-user b{font-size:14px;display:block}
.voice-user span{font-size:12.5px;color:var(--ink-3)}

/* ===== 创作者横滑 ===== */
.creator-row{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory}
.creator-row::-webkit-scrollbar{height:6px}
.creator-row::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px}
.creator-card{
  flex:0 0 250px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px;text-align:left;transition:.3s ease;
}
.creator-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-1)}
.creator-avatar{
  width:56px;height:56px;border-radius:18px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;margin-bottom:16px;
}
.creator-card h3{font-size:16px;margin-bottom:6px}
.creator-role{font-size:12.5px;color:var(--brand);font-weight:600;margin-bottom:10px;display:block}
.creator-card p{font-size:13.6px;color:var(--ink-2);margin:0}

/* ===== 流程 ===== */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.flow-step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px 20px;transition:.3s ease}
.flow-step:hover{border-color:transparent;box-shadow:var(--shadow-1);transform:translateY(-4px)}
.flow-no{
  width:32px;height:32px;border-radius:11px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:14px;
}
.flow-step h3{font-size:15px;margin-bottom:8px}
.flow-step p{font-size:13.4px;color:var(--ink-2);margin:0}

/* ===== 合作 / 媒体 ===== */
.partner-wrap{display:flex;flex-wrap:wrap;gap:14px}
.partner-chip{
  display:inline-flex;align-items:center;gap:9px;padding:12px 20px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--ink-2);
  transition:.3s ease;
}
.partner-chip i{color:var(--brand);font-size:13px}
.partner-chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-3px)}

/* ===== 订阅 App ===== */
.app-panel{
  background:var(--surface);border-radius:28px;border:1px solid var(--line);
  padding:48px 44px;display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center;
  box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.app-panel::before{
  content:"";position:absolute;top:-120px;right:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.18),transparent 70%);
}
.app-panel h2{font-size:clamp(21px,2.4vw,29px);margin-bottom:14px;position:relative}
.app-panel p{font-size:15px;color:var(--ink-2);position:relative}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;position:relative}
.sub-form input{
  flex:1 1 200px;padding:14px 20px;border-radius:999px;border:1px solid var(--line-strong);
  background:var(--bg);font-size:14.5px;transition:.25s ease;
}
.sub-form input:focus{border-color:var(--brand);background:#fff;outline:none;box-shadow:0 0 0 4px var(--brand-soft)}
.form-tip{font-size:12.5px;color:var(--ink-3);margin-top:14px;position:relative}
.app-side{display:grid;gap:14px;position:relative}
.app-side-item{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--radius-md);
  background:var(--bg);border:1px solid var(--line);
}
.app-side-item i{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:14px}
.app-side-item b{font-size:14.5px;display:block}
.app-side-item span{font-size:12.8px;color:var(--ink-3)}

/* ===== 收口 CTA ===== */
.closing{background:linear-gradient(135deg,#1d1033,#4c1d95 55%,#9d174d);color:#fff;text-align:center}
.closing h2{color:#fff;font-size:clamp(23px,3vw,36px);margin-bottom:16px}
.closing p{color:rgba(255,255,255,.78);max-width:660px;margin:0 auto 30px;font-size:15.6px}
.closing .btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.closing .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.closing-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:#120d1d;color:rgba(255,255,255,.68);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text{background:linear-gradient(120deg,#c4b5fd,#f9a8d4);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer-brand p{font-size:13.6px;color:rgba(255,255,255,.55);max-width:330px}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px;font-size:13.6px;color:rgba(255,255,255,.58)}
.footer-col a:hover{color:#f9a8d4}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:12.8px;color:rgba(255,255,255,.42)}
.footer-bottom .domain{font-family:ui-monospace,Menlo,monospace;letter-spacing:.02em}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .plan-grid,.value-grid,.voice-grid,.latest-grid{grid-template-columns:repeat(3,1fr)}
  .collection-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:900px){
  .nav-menu{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:#fff;flex-direction:column;align-items:flex-start;gap:2px;
    padding:14px 24px 22px;border-bottom:1px solid var(--line);
    box-shadow:0 26px 44px -30px rgba(22,18,31,.55);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:11px 0;width:100%;font-size:15.5px}
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .split{grid-template-columns:1fr}
  .plan-grid,.value-grid,.voice-grid,.latest-grid,.cat-wall,.scene-grid{grid-template-columns:repeat(2,1fr)}
  .app-panel{grid-template-columns:1fr;padding:36px 28px;gap:30px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .band-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .hero{padding:48px 0 20px}
  .plan-grid,.value-grid,.voice-grid,.latest-grid,.cat-wall,.scene-grid,.collection-grid,.flow-grid,.data-grid,.band-grid{grid-template-columns:1fr}
  .plan.is-featured{transform:none}
  .plan.is-featured:hover{transform:translateY(-4px)}
  .feed-item{padding:16px 18px}
  .feed-thumb{width:52px;height:52px;flex:0 0 52px;border-radius:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .closing-actions .btn{width:100%}
  .scene-card{flex-direction:column;gap:14px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
 --bg:#f7f5fb;
 --surface:#ffffff;
 --surface-2:#f1ecfa;
 --ink:#16121f;
 --ink-2:#585168;
 --ink-3:#8c85a0;
 --brand:#7c3aed;
 --brand-2:#ec4899;
 --brand-soft:rgba(124,58,237,.09);
 --brand-soft-2:rgba(236,72,153,.10);
 --line:rgba(22,18,31,.09);
 --line-strong:rgba(22,18,31,.16);
 --radius:22px;
 --radius-md:16px;
 --radius-sm:10px;
 --shadow-1:0 10px 30px -18px rgba(22,18,31,.35);
 --shadow-2:0 34px 60px -34px rgba(124,58,237,.55);
 --grad:linear-gradient(120deg,#7c3aed 0%,#b13ac9 52%,#ec4899 100%);
 --container:1180px;
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
body,p,ul,ol,li,h1,h2,h3,h4,h5,h6,table{margin:0;padding:0}
ul,ol{list-style:none;margin-left:0}
h1,h2,h3,h4{font-weight:800;line-height:1.28;letter-spacing:-.4px;color:var(--ink);margin:0 0 14px}
p{margin:0 0 14px}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease}
a:hover{color:var(--brand)}
button{font:inherit;cursor:pointer;background:none;border:0}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:74px 0;position:relative}
.section-tight{padding:50px 0}
.section-alt{background:linear-gradient(180deg,rgba(241,236,250,.72),rgba(247,245,251,0))}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.7vw,33px);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:15.6px;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
 color:var(--brand);background:var(--brand-soft);
 padding:7px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:11px}
.muted{color:var(--ink-3);font-size:14px}

/* ===== 导航 ===== */
.site-header{
 position:sticky;top:0;z-index:70;
 background:rgba(247,245,251,.86);
 backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.3px}
.brand-mark{
 width:34px;height:34px;border-radius:11px;background:var(--grad);
 color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
 box-shadow:0 10px 22px -12px rgba(124,58,237,.9);
}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;gap:36px}
.nav-menu a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ink-2);font-weight:500}
.nav-menu a::after{
 content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
 background:var(--grad);border-radius:2px;transform:translateX(-50%);
 transition:width .3s ease;
}
.nav-menu a:hover,.nav-menu a.is-active{color:var(--ink)}
.nav-menu a:hover::after,.nav-menu a.is-active::after{width:100%}
.nav-cta{margin-left:auto}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
 border-radius:12px;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:3px auto;transition:.25s}

/* ===== 按钮 ===== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;transition:all .28s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 18px 34px -18px rgba(124,58,237,.95)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 24px 42px -18px rgba(124,58,237,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-soft{background:var(--brand-soft);color:var(--brand)}
.btn-soft:hover{background:var(--brand);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{color:var(--brand-2);transform:translateY(-2px)}

/* ===== 徽章 / 标签 ===== */
.badge{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand);
}
.badge-hot{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(236,72,153,.9)}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-2)}
.tag{display:inline-block;padding:4px 11px;border-radius:8px;font-size:12.5px;background:var(--surface-2);color:var(--ink-2);margin:0 6px 6px 0}

/* ===== Hero 拼团 ===== */
.hero{padding:68px 0 34px;position:relative;overflow:hidden}
.hero::before{
 content:"";position:absolute;top:-190px;right:-150px;width:540px;height:540px;border-radius:50%;
 background:radial-gradient(circle at 30% 30%,rgba(124,58,237,.22),rgba(236,72,153,.10) 55%,transparent 72%);
 filter:blur(6px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:start}
.hero h1{font-size:clamp(28px,4.1vw,48px);line-height:1.2;margin:18px 0 18px;letter-spacing:-1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:640px;margin-bottom:12px}
.hero-sub{font-size:15px;color:var(--ink-3);max-width:610px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;font-size:13.5px;color:var(--ink-3)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note i{color:var(--brand)}

.group-card{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-1);
}
.group-card::before{
 content:"";position:absolute;left:28px;right:28px;top:0;height:3px;border-radius:0 0 6px 6px;background:var(--grad);
}
.group-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.group-deadline{font-size:12.8px;color:var(--ink-3)}
.group-card h3{font-size:19px;margin-bottom:8px}
.group-card > p{font-size:14.6px;color:var(--ink-2)}
.group-metric{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin:18px 0 10px}
.group-metric b{font-size:26px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.group-metric span{font-size:13.4px;color:var(--ink-3)}
.progress{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.progress span{display:block;height:100%;width:0;border-radius:999px;background:var(--grad);transition:width 1.2s cubic-bezier(.4,0,.2,1)}
.group-left{font-size:13.6px;color:var(--ink-2);margin:12px 0 20px}
.group-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.group-points{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line-strong);display:grid;gap:9px}
.group-points li{display:flex;align-items:center;gap:9px;font-size:13.8px;color:var(--ink-2)}
.group-points i{color:var(--brand-2);font-size:12px}

/* ===== 成团阶梯 ===== */
.tier-list{display:grid;gap:18px}
.tier{
 display:grid;grid-template-columns:74px 1fr auto;gap:22px;align-items:center;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
 padding:22px 26px;box-shadow:var(--shadow-1);transition:transform .28s ease,box-shadow .28s ease;
}
.tier:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.tier-num{
 width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:16px;text-align:center;line-height:1.15;
}
.tier-body b{display:block;font-size:16.5px;margin-bottom:5px}
.tier-body p{font-size:14.2px;color:var(--ink-2);margin:0 0 12px}
.tier-bar{height:7px;border-radius:999px;background:var(--surface-2);overflow:hidden;max-width:420px}
.tier-bar span{display:block;height:100%;border-radius:999px;background:var(--grad)}
.tier-state{font-size:12.8px;font-weight:700;padding:7px 14px;border-radius:999px;white-space:nowrap}
.tier-state.ok{background:rgba(124,58,237,.10);color:var(--brand)}
.tier-state.ing{background:var(--brand-soft-2);color:#c02c86}
.tier-state.wait{background:var(--surface-2);color:var(--ink-3)}

/* ===== 通用卡片 ===== */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-1);height:100%;
 transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
 display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.card-icon{
 width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
 background:var(--grad);color:#fff;font-size:18px;margin-bottom:18px;
 box-shadow:0 14px 26px -16px rgba(124,58,237,.95);
}
.card-icon.alt{background:var(--brand-soft);color:var(--brand);box-shadow:none}
.card h3{font-size:17.5px;margin-bottom:10px}
.card p{font-size:14.6px;color:var(--ink-2);margin-bottom:14px}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13.4px;color:var(--ink-3)}
.card-foot i{color:var(--brand)}
.card-list{display:grid;gap:9px;margin-top:2px}
.card-list li{font-size:14px;color:var(--ink-2);display:flex;gap:9px;align-items:flex-start}
.card-list i{color:var(--brand);font-size:12px;margin-top:6px}

/* ===== 场景 ===== */
.scene{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-1);height:100%;position:relative;overflow:hidden;
 transition:transform .3s ease,box-shadow .3s ease;
}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.scene::after{
 content:"";position:absolute;right:-40px;bottom:-40px;width:140px;height:140px;border-radius:50%;
 background:var(--brand-soft-2);
}
.scene h3{font-size:17px;position:relative;z-index:1}
.scene p{font-size:14.4px;color:var(--ink-2);position:relative;z-index:1}
.scene-meta{position:relative;z-index:1;display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* ===== 封面预览墙 ===== */
.cover-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cover{
 position:relative;border-radius:var(--radius-md);overflow:hidden;aspect-ratio:16/10;
 display:flex;align-items:flex-end;padding:18px;color:#fff;box-shadow:var(--shadow-1);
 transition:transform .3s ease,box-shadow .3s ease;cursor:default;
}
.cover:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.cover-bg{position:absolute;inset:0;background:linear-gradient(140deg,var(--g1,#7c3aed),var(--g2,#ec4899))}
.cover-bg::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(10,6,20,0) 35%,rgba(10,6,20,.76) 100%);
}
.cover-body{position:relative;z-index:2}
.cover-body b{display:block;font-size:15.4px;font-weight:700}
.cover-body span{font-size:12.6px;opacity:.82}
.cover-pill{
 position:absolute;top:14px;left:14px;z-index:2;
 font-size:11.8px;font-weight:700;letter-spacing:.06em;
 background:rgba(255,255,255,.22);backdrop-filter:blur(8px);
 padding:5px 11px;border-radius:999px;color:#fff;
}
.cover-dur{
 position:absolute;top:14px;right:14px;z-index:2;font-size:11.8px;font-weight:700;
 background:rgba(10,6,20,.5);padding:5px 10px;border-radius:8px;color:#fff;
}

/* ===== 数据条 ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
 padding:22px;box-shadow:var(--shadow-1);transition:transform .28s ease;
}
.stat:hover{transform:translateY(-3px)}
.stat b{display:block;font-size:27px;line-height:1.2;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13.6px;color:var(--ink-3)}
.praise-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:20px}
.praise{
 background:var(--surface-2);border-radius:var(--radius-md);padding:20px 22px;
 border:1px solid var(--line);font-size:14.4px;color:var(--ink-2);
}
.praise b{display:block;color:var(--ink);font-size:14.6px;margin-bottom:6px}

/* ===== 评价墙 ===== */
.quote-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-1);height:100%;display:flex;flex-direction:column;
 transition:transform .3s ease,box-shadow .3s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.quote-mark{font-size:26px;color:var(--brand-soft-2);margin-bottom:10px;line-height:1}
.quote-card p{font-size:14.8px;color:var(--ink-2);flex:1}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-strong)}
.avatar{
 width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;
 display:grid;place-items:center;font-weight:700;font-size:15px;flex:none;
}
.quote-who b{display:block;font-size:14.6px}
.quote-who span{font-size:12.8px;color:var(--ink-3)}

/* ===== 资讯列表 ===== */
.news-list{border-top:1px solid var(--line)}
.news-item{
 display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
 padding:22px 4px;border-bottom:1px solid var(--line);transition:background .25s ease,padding .25s ease;
}
.news-item:hover{background:rgba(124,58,237,.035)}
.news-date{
 font-size:13px;font-weight:700;color:var(--brand);background:var(--brand-soft);
 border-radius:10px;padding:8px 10px;text-align:center;
}
.news-body b{display:block;font-size:16px;margin-bottom:5px}
.news-body p{font-size:14.2px;color:var(--ink-2);margin:0}
.news-more{font-size:13.4px;color:var(--ink-3);display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.news-item:hover .news-more{color:var(--brand)}

/* ===== CTA ===== */
.cta-band{
 background:var(--grad);border-radius:var(--radius);padding:48px;
 color:#fff;display:grid;grid-template-columns:1.5fr 1fr;gap:34px;align-items:center;
 box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.cta-band::before{
 content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
 background:rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15.2px;margin:0;max-width:620px}
.cta-side{position:relative;z-index:1;display:grid;gap:12px}
.cta-side .btn{width:100%}
.cta-hint{font-size:13px;color:rgba(255,255,255,.78);text-align:center}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
 padding:0 22px;margin-bottom:14px;transition:box-shadow .28s ease,border-color .28s ease;
}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:var(--line-strong)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:20px 0;font-weight:700;font-size:16.4px;
 display:flex;align-items:center;justify-content:space-between;gap:18px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:400;color:var(--brand);line-height:1;transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 0 22px;font-size:14.8px;color:var(--ink-2);max-width:780px}

/* ===== 页脚 ===== */
.site-footer{background:#16121f;color:rgba(255,255,255,.72);margin-top:56px;padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px;color:#fff}
.site-footer .brand-text{background:none;-webkit-text-fill-color:#fff;color:#fff}
.site-footer .brand-mark{box-shadow:none}
.footer-brand p{font-size:14.2px;color:rgba(255,255,255,.6);max-width:340px;margin:0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:0}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14.2px;color:rgba(255,255,255,.62);transition:color .25s ease}
.footer-col a:hover{color:#fff}
.footer-col li:hover{color:rgba(255,255,255,.86)}
.footer-bottom{
 margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
 display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13.2px;color:rgba(255,255,255,.5);margin:0}
.footer-bottom .domain{letter-spacing:.04em;color:rgba(255,255,255,.42)}

/* ===== 响应式 ===== */
@media (max-width:1080px){
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
 .praise-row{grid-template-columns:1fr}
 .cover-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-band{grid-template-columns:1fr;padding:38px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
 .nav-toggle{display:grid}
 .nav-menu{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  flex-direction:column;align-items:stretch;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:8px 20px;box-shadow:var(--shadow-2);display:none;
 }
 .nav-menu.is-open{display:flex}
 .nav-menu li{width:100%}
 .nav-menu a{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:15.4px}
 .nav-menu li:last-child a{border-bottom:0}
 .nav-menu a::after{display:none}
 .nav-cta{margin-left:0;padding:10px 16px;font-size:13.5px}
}
@media (max-width:768px){
 .section{padding:56px 0}
 .tier{grid-template-columns:1fr;gap:14px;padding:22px}
 .tier-num{width:52px;height:52px;border-radius:14px;font-size:15px}
 .tier-state{justify-self:start}
 .news-item{grid-template-columns:1fr;gap:10px;padding:20px 4px}
 .news-date{width:fit-content}
 .news-more{font-size:13px}
}
@media (max-width:600px){
 .container{padding:0 18px}
 .cover-grid{grid-template-columns:1fr}
 .stat-strip{grid-template-columns:1fr}
 .group-actions{grid-template-columns:1fr}
 .cta-band{padding:30px 24px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .hero{padding:48px 0 24px}
 .btn{padding:13px 22px;font-size:14.6px}
}
@media (max-width:520px){
 .nav-cta{display:none}
 .hero-note{gap:12px}
 .hero-note span{font-size:13px}
}

/* roulang page: category3 */
:root{
 --bg:#f7f5fb;
 --surface:#ffffff;
 --surface-2:#f1ecfa;
 --ink:#16121f;
 --ink-2:#585168;
 --ink-3:#8c85a0;
 --brand:#7c3aed;
 --brand-2:#ec4899;
 --brand-soft:rgba(124,58,237,.09);
 --brand-soft-2:rgba(236,72,153,.10);
 --line:rgba(22,18,31,.09);
 --line-strong:rgba(22,18,31,.16);
 --radius:22px;
 --radius-md:16px;
 --radius-sm:10px;
 --shadow-1:0 10px 30px -18px rgba(22,18,31,.35);
 --shadow-2:0 34px 60px -34px rgba(124,58,237,.55);
 --grad:linear-gradient(120deg,#7c3aed 0%,#b13ac9 52%,#ec4899 100%);
 --container:1180px;
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand)}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:750;letter-spacing:-.4px}
p{margin:0 0 12px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0;position:relative}
.section-tight{padding:44px 0}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.7vw,33px);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:15.6px;margin:0}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
 color:var(--brand);background:var(--brand-soft);
 padding:7px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:11px}
.divider{height:1px;background:var(--line);margin:0}

/* ===== 导航 ===== */
.site-header{
 position:sticky;top:0;z-index:70;
 background:rgba(247,245,251,.86);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.3px}
.brand-mark{
 width:34px;height:34px;border-radius:11px;background:var(--grad);
 color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
 box-shadow:0 10px 22px -12px rgba(124,58,237,.9);
}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;gap:36px}
.nav-menu a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ink-2);font-weight:500}
.nav-menu a::after{
 content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
 background:var(--grad);border-radius:2px;transform:translateX(-50%);
 transition:width .3s ease;
}
.nav-menu a:hover,.nav-menu a.is-active{color:var(--ink)}
.nav-menu a:hover::after,.nav-menu a.is-active::after{width:100%}
.nav-cta{margin-left:auto}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
 border-radius:12px;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:4px auto;transition:.25s}

/* ===== 按钮 ===== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;transition:all .28s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 18px 34px -18px rgba(124,58,237,.95)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 24px 42px -18px rgba(124,58,237,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-soft{background:var(--brand-soft);color:var(--brand)}
.btn-soft:hover{background:var(--brand);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn-light{background:#fff;color:#3b1d64}
.btn-light:hover{color:#7c3aed;transform:translateY(-2px)}

/* ===== 徽章 / 标签 ===== */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand)}
.badge-hot{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(236,72,153,.9)}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-2)}
.tag{display:inline-block;padding:4px 11px;border-radius:8px;font-size:12.5px;background:var(--surface-2);color:var(--ink-2);margin:0 6px 6px 0}

/* ===== Hero ===== */
.hero{padding:56px 0 26px;position:relative;overflow:hidden}
.hero::before{
 content:"";position:absolute;top:-190px;right:-150px;width:540px;height:540px;border-radius:50%;
 background:radial-gradient(circle at 30% 30%,rgba(124,58,237,.24),rgba(236,72,153,.10) 55%,transparent 72%);
 filter:blur(6px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:start}
.burst{
 display:inline-flex;align-items:center;gap:9px;
 background:var(--grad);color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;
 padding:9px 18px;border-radius:999px;transform:rotate(-2deg);
 box-shadow:0 16px 30px -16px rgba(236,72,153,.95);
}
.burst i{font-size:11px}
.hero h1{font-size:clamp(28px,3.9vw,46px);line-height:1.22;margin:20px 0 16px;letter-spacing:-1.1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.8px;color:var(--ink-2);max-width:640px;margin-bottom:16px}
.limited{
 display:flex;align-items:center;gap:11px;flex-wrap:wrap;
 font-size:14px;color:var(--ink-2);
 background:var(--brand-soft-2);border:1px dashed rgba(236,72,153,.45);
 padding:11px 16px;border-radius:14px;margin-bottom:24px;max-width:640px;
}
.limited b{color:var(--brand-2);font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-size:13.5px;color:var(--ink-3)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note i{color:var(--brand)}
.hero-panel{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-2);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-head h3{font-size:16.5px}
.mini-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:20px}
.mini-stat{background:var(--surface-2);border-radius:var(--radius-sm);padding:12px 14px}
.mini-stat b{display:block;font-size:21px;line-height:1.4;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mini-stat span{font-size:12.5px;color:var(--ink-3)}
.rank-list li{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px dashed var(--line)}
.rank-list li:first-child{border-top:0}
.rank-num{
 width:24px;height:24px;flex:none;border-radius:8px;background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;font-size:12.5px;font-weight:700;
}
.rank-list li b{font-size:14.4px;font-weight:600}
.rank-list li span{margin-left:auto;font-size:12.5px;color:var(--ink-3);white-space:nowrap}

/* ===== 数据条 ===== */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 28px;box-shadow:var(--shadow-1);
}
.stat-strip .stat b{display:block;font-size:27px;line-height:1.35;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-strip .stat span{font-size:13.4px;color:var(--ink-3)}

/* ===== Tabs 专题分组 ===== */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tab-btn{
 padding:10px 20px;border-radius:999px;border:1px solid var(--line-strong);
 background:var(--surface);color:var(--ink-2);font-size:14.5px;font-weight:600;transition:all .25s ease;
}
.tab-btn:hover{border-color:var(--brand);color:var(--brand)}
.tab-btn.is-on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 14px 28px -16px rgba(124,58,237,.95)}
.tab-panel{display:none}
.tab-panel.is-on{display:block}
.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.theme-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease;
}
.theme-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2);border-color:transparent}
.theme-cover{height:146px;position:relative;display:flex;align-items:flex-end;padding:16px;color:#fff}
.theme-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,18,31,0) 30%,rgba(22,18,31,.55) 100%)}
.theme-cover .badge-hot{position:absolute;top:14px;left:14px}
.theme-cover strong{position:relative;font-size:16.5px;letter-spacing:-.2px}
.cover-a{background:linear-gradient(135deg,#7c3aed,#b13ac9)}
.cover-b{background:linear-gradient(135deg,#5b21b6,#ec4899)}
.cover-c{background:linear-gradient(135deg,#9333ea,#f472b6)}
.cover-d{background:linear-gradient(135deg,#4c1d95,#a855f7)}
.theme-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.theme-body p{font-size:14.3px;color:var(--ink-2);margin-bottom:14px}
.theme-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.8px;color:var(--ink-3);padding-top:12px;border-top:1px dashed var(--line)}

/* ===== 场景 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;transition:all .3s ease;
}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.scene-icon{
 width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);font-size:17px;margin-bottom:16px;
}
.scene-card h3{font-size:16.5px;margin-bottom:8px}
.scene-card p{font-size:14.2px;color:var(--ink-2);margin:0}

/* ===== 演示 ===== */
.demo-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.demo-list li{display:flex;gap:13px;padding:12px 0;border-bottom:1px dashed var(--line)}
.demo-list li:last-child{border-bottom:0}
.demo-list i{color:var(--brand);margin-top:7px;font-size:13px}
.demo-list b{display:block;font-size:15.4px;font-weight:650}
.demo-list span{font-size:13.8px;color:var(--ink-2)}
.demo-frame{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-2);
}
.demo-top{display:flex;align-items:center;gap:8px;padding:13px 18px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.demo-top span{width:9px;height:9px;border-radius:50%;background:var(--line-strong)}
.demo-top em{margin-left:10px;font-style:normal;font-size:12.8px;color:var(--ink-3)}
.demo-body{padding:20px;display:grid;gap:14px}
.demo-hero{height:118px;border-radius:var(--radius-md);background:linear-gradient(135deg,#7c3aed,#b13ac9 55%,#ec4899);position:relative}
.demo-hero::after{content:"";position:absolute;left:18px;bottom:18px;width:120px;height:10px;border-radius:999px;background:rgba(255,255,255,.75)}
.demo-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.demo-thumb{height:78px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--line)}
.demo-thumb.is-alt{background:linear-gradient(135deg,rgba(124,58,237,.18),rgba(236,72,153,.18))}
.demo-bar{display:flex;gap:8px;flex-wrap:wrap}
.demo-bar i{height:20px;border-radius:999px;background:var(--surface-2);flex:none}
.demo-bar i:nth-child(1){width:78px}
.demo-bar i:nth-child(2){width:56px}
.demo-bar i:nth-child(3){width:96px}

/* ===== 精选合集 ===== */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pick-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;display:flex;flex-direction:column;transition:all .3s ease;
}
.pick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.pick-card h3{font-size:18px;margin:14px 0 10px}
.pick-card p{font-size:14.4px;color:var(--ink-2)}
.pick-data{display:flex;gap:22px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--line)}
.pick-data div b{display:block;font-size:18px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.pick-data div span{font-size:12.4px;color:var(--ink-3)}

/* ===== 套餐 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:30px 26px;display:flex;flex-direction:column;transition:all .3s ease;
}
.plan:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.plan h3{font-size:19px}
.plan .price{font-size:34px;font-weight:780;letter-spacing:-1px;margin:14px 0 6px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.plan .price small{font-size:14px;font-weight:500;color:var(--ink-3);-webkit-text-fill-color:var(--ink-3);margin-left:4px}
.plan-desc{font-size:13.8px;color:var(--ink-3);margin-bottom:18px}
.plan-list{margin:0 0 22px;padding-top:6px;border-top:1px dashed var(--line)}
.plan-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;font-size:14.3px;color:var(--ink-2)}
.plan-list i{color:var(--brand);font-size:12px;margin-top:7px}
.plan .btn{margin-top:auto}
.plan.is-featured{
 border:2px solid transparent;background-color:#fff;
 background-image:linear-gradient(#fff,#fff),var(--grad);
 background-origin:border-box;background-clip:padding-box,border-box;
 box-shadow:var(--shadow-2);transform:translateY(-10px);
}
.plan.is-featured:hover{transform:translateY(-14px)}
.plan-flag{position:absolute;top:-13px;right:24px;background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:999px}

/* ===== 评价墙 ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 24px 22px;display:flex;flex-direction:column;gap:14px;transition:all .3s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.quote-card p{font-size:14.6px;color:var(--ink-2);margin:0}
.quote-user{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line)}
.avatar{
 width:36px;height:36px;border-radius:12px;display:grid;place-items:center;flex:none;
 background:var(--grad);color:#fff;font-size:14px;font-weight:700;
}
.quote-user b{font-size:14.2px;display:block}
.quote-user span{font-size:12.5px;color:var(--ink-3)}
.stars{color:#f59e0b;font-size:12.5px;letter-spacing:2px}

/* ===== 资讯列表 ===== */
.news-list{border-top:1px solid var(--line)}
.news-item{
 display:grid;grid-template-columns:96px 1fr auto;gap:22px;align-items:center;
 padding:20px 0;border-bottom:1px solid var(--line);transition:all .25s ease;
}
.news-item:hover{padding-left:8px}
.news-date{font-size:13.2px;color:var(--ink-3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.news-item h3{font-size:16.4px;margin-bottom:6px}
.news-item p{font-size:13.9px;color:var(--ink-2);margin:0}
.news-item i{color:var(--brand);font-size:13px}

/* ===== CTA ===== */
.cta-band{
 position:relative;overflow:hidden;border-radius:26px;
 background:linear-gradient(120deg,#2a1246 0%,#5b21b6 48%,#be185d 100%);
 color:#fff;padding:52px 46px;box-shadow:var(--shadow-2);
}
.cta-band::after{
 content:"";position:absolute;right:-120px;top:-120px;width:400px;height:400px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.7vw,31px);margin-bottom:14px;color:#fff}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.2px;margin-bottom:0}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
 flex:1 1 200px;min-width:0;padding:14px 18px;border-radius:999px;
 border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);color:#fff;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.2)}
.cta-tip{margin-top:14px;font-size:12.8px;color:rgba(255,255,255,.62)}

/* ===== 页脚 ===== */
.site-footer{background:#150f22;color:rgba(255,255,255,.72);padding:62px 0 26px;margin-top:24px;position:relative;overflow:hidden}
.site-footer::before{
 content:"";position:absolute;top:-170px;left:50%;transform:translateX(-50%);
 width:660px;height:330px;background:radial-gradient(ellipse at center,rgba(124,58,237,.38),transparent 70%);
 filter:blur(10px);
}
.footer-grid{
 position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
 padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand p{margin-top:16px;font-size:13.8px;color:rgba(255,255,255,.6);max-width:340px}
.footer-brand .brand-text{background:linear-gradient(120deg,#c4b5fd,#f9a8d4);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul li{font-size:14px;color:rgba(255,255,255,.62);padding:6px 0}
.footer-col ul li a{color:rgba(255,255,255,.62)}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{
 position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
 padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0}
.domain{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em}

/* ===== 响应式 ===== */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px}
 .stat-strip{grid-template-columns:repeat(2,1fr)}
 .theme-grid{grid-template-columns:repeat(2,1fr)}
 .scene-grid{grid-template-columns:repeat(2,1fr)}
 .demo-grid{grid-template-columns:1fr;gap:30px}
 .pick-grid{grid-template-columns:1fr}
 .plan-grid{grid-template-columns:1fr}
 .plan.is-featured{transform:none}
 .plan.is-featured:hover{transform:translateY(-4px)}
 .quote-grid{grid-template-columns:repeat(2,1fr)}
 .cta-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
 .nav-toggle{display:grid;order:3}
 .nav-menu{
  display:none;position:absolute;top:78px;left:0;right:0;
  flex-direction:column;align-items:flex-start;gap:4px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:14px 18px;box-shadow:var(--shadow-2);
 }
 .nav-menu.is-open{display:flex}
 .nav-menu li{width:100%}
 .nav-menu a{display:block;width:100%;padding:11px 2px;font-size:15.5px}
 .nav-menu a::after{display:none}
 .nav-menu a.is-active{color:var(--brand)}
 .nav-cta{margin-left:auto}
}
@media (max-width:768px){
 .container{padding:0 20px}
 .section{padding:52px 0}
 .section-tight{padding:34px 0}
 .theme-grid{grid-template-columns:1fr}
 .scene-grid{grid-template-columns:1fr}
 .quote-grid{grid-template-columns:1fr}
 .stat-strip{padding:22px;gap:16px}
 .news-item{grid-template-columns:1fr auto;gap:12px}
 .news-date{grid-column:1/-1}
 .cta-band{padding:38px 26px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
 .hero{padding:38px 0 18px}
 .hero h1{font-size:26px;letter-spacing:-.6px}
 .hero-actions .btn{width:100%}
 .nav-cta{display:none}
 .mini-stats{grid-template-columns:1fr 1fr}
 .stat-strip{grid-template-columns:1fr 1fr}
 .stat-strip .stat b{font-size:23px}
 .demo-row{grid-template-columns:1fr 1fr}
 .rank-list li span{display:none}
}

/* roulang page: category1 */
/* ================= 设计系统 · 人人干人妻 ================= */
:root{
 --bg:#f7f5fb;
 --surface:#ffffff;
 --surface-2:#f1ecfa;
 --ink:#16121f;
 --ink-2:#585168;
 --ink-3:#8c85a0;
 --brand:#7c3aed;
 --brand-2:#ec4899;
 --brand-soft:rgba(124,58,237,.09);
 --brand-soft-2:rgba(236,72,153,.10);
 --line:rgba(22,18,31,.09);
 --line-strong:rgba(22,18,31,.16);
 --radius:22px;
 --radius-md:16px;
 --radius-sm:10px;
 --shadow-1:0 10px 30px -18px rgba(22,18,31,.35);
 --shadow-2:0 34px 60px -34px rgba(124,58,237,.55);
 --grad:linear-gradient(120deg,#7c3aed 0%,#b13ac9 52%,#ec4899 100%);
 --container:1180px;
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand)}
a:focus-visible,button:focus-visible,summary:focus-visible,.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.26;letter-spacing:-.4px;font-weight:800;color:var(--ink)}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
main{display:block}
/* 板块 */
.section{padding:76px 0;position:relative}
.section-tight{padding:50px 0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.7vw,33px);margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:15.6px;margin:0}
.section-head.split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.section-head.split>div{max-width:720px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
 color:var(--brand);background:var(--brand-soft);
 padding:7px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:11px}
.muted{color:var(--ink-2)}
/* ================= 导航 ================= */
.site-header{
 position:sticky;top:0;z-index:70;
 background:rgba(247,245,251,.86);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.3px}
.brand-mark{
 width:34px;height:34px;border-radius:11px;background:var(--grad);
 color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;
 box-shadow:0 10px 22px -12px rgba(124,58,237,.9);
}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;gap:36px}
.nav-menu a{
 position:relative;display:inline-block;padding:6px 0;
 font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-menu a::after{
 content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
 background:var(--grad);border-radius:2px;transform:translateX(-50%);
 transition:width .3s ease;
}
.nav-menu a:hover,.nav-menu a.is-active{color:var(--ink)}
.nav-menu a:hover::after,.nav-menu a.is-active::after{width:100%}
.nav-cta{margin-left:auto}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
 border-radius:12px;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:3px auto;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
/* ================= 按钮 ================= */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
 border:1px solid transparent;transition:all .28s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 18px 34px -18px rgba(124,58,237,.95)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 24px 42px -18px rgba(124,58,237,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-soft{background:var(--brand-soft);color:var(--brand)}
.btn-soft:hover{background:var(--brand);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
/* ================= 徽章 / 标签 ================= */
.badge{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand);
}
.badge-hot{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(236,72,153,.9)}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-2)}
.tag{display:inline-block;padding:4px 11px;border-radius:8px;font-size:12.5px;background:var(--surface-2);color:var(--ink-2);margin:0 6px 6px 0}
/* ================= 首屏 · 前后对比 ================= */
.hero{padding:66px 0 30px;position:relative;overflow:hidden}
.hero::before{
 content:"";position:absolute;top:-190px;right:-140px;width:540px;height:540px;border-radius:50%;
 background:radial-gradient(circle at 30% 30%,rgba(124,58,237,.22),rgba(236,72,153,.10) 55%,transparent 72%);
 filter:blur(6px);pointer-events:none;
}
.hero-inner{position:relative;max-width:860px}
.hero h1{font-size:clamp(28px,4.2vw,48px);line-height:1.2;margin:20px 0 18px;letter-spacing:-1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:740px;margin-bottom:10px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:26px}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;font-size:13.5px;color:var(--ink-3)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note i{color:var(--brand)}
.compare{position:relative;display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch;margin-top:48px}
.compare-card{border-radius:var(--radius);padding:28px 26px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease}
.compare-card:hover{transform:translateY(-4px)}
.compare-before{background:linear-gradient(180deg,#f3f0f8,#fff)}
.compare-after{background:linear-gradient(180deg,#f8f2ff,#fff);box-shadow:var(--shadow-2);position:relative;overflow:hidden}
.compare-after::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.compare-label{display:inline-flex;align-items:center;gap:8px;font-size:12.4px;font-weight:700;letter-spacing:.1em;padding:5px 12px;border-radius:999px;margin-bottom:16px}
.compare-before .compare-label{background:rgba(22,18,31,.06);color:var(--ink-3)}
.compare-after .compare-label{background:var(--brand-soft);color:var(--brand)}
.compare-card h3{font-size:19px;margin-bottom:14px}
.compare-list li{display:flex;gap:11px;font-size:14.6px;color:var(--ink-2);padding:7px 0}
.compare-list i{margin-top:5px;font-size:12.5px}
.compare-before .compare-list i{color:#ef4444}
.compare-after .compare-list i{color:#14b8a6}
.compare-arrow{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--brand)}
.compare-arrow i{width:46px;height:46px;border-radius:50%;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;box-shadow:var(--shadow-1)}
.compare-arrow span{font-size:12px;color:var(--ink-3);letter-spacing:.14em}
/* ================= 数据条 ================= */
.stat-band{
 display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
 padding:30px 28px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);box-shadow:var(--shadow-1);
}
.stat b{display:block;font-size:28px;font-weight:800;line-height:1.3;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13.8px;color:var(--ink-2)}
.stat+.stat{border-left:1px solid var(--line);padding-left:20px}
/* ================= 频道矩阵 ================= */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.matrix-card{
 position:relative;display:flex;flex-direction:column;gap:12px;overflow:hidden;
 padding:28px 26px;border-radius:var(--radius);border:1px solid var(--line);
 background:var(--surface);box-shadow:var(--shadow-1);
 transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.matrix-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);opacity:.85}
.matrix-card:hover{transform:translateY(-5px);border-color:transparent;box-shadow:var(--shadow-2)}
.matrix-card .badge{align-self:flex-start}
.matrix-card h3{font-size:19px}
.matrix-card p{font-size:14.6px;color:var(--ink-2);margin:0}
.matrix-go{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:8px}
/* ================= 频道卡片 ================= */
.card-grid{margin-bottom:-24px}
.card-grid>.cell{margin-bottom:24px;display:flex}
.channel-card{
 width:100%;display:flex;flex-direction:column;overflow:hidden;padding:0;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease;
}
.channel-card:hover{transform:translateY(-6px);box-shadow:0 28px 50px -30px rgba(124,58,237,.6)}
.channel-cover{position:relative;height:156px;display:flex;align-items:flex-end;padding:14px;overflow:hidden}
.channel-cover::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(circle at 76% 20%,rgba(255,255,255,.34),transparent 58%),
            linear-gradient(180deg,rgba(22,18,31,0) 35%,rgba(22,18,31,.55));
}
.cv-1{background:linear-gradient(135deg,#7c3aed,#b13ac9)}
.cv-2{background:linear-gradient(135deg,#6d28d9,#ec4899)}
.cv-3{background:linear-gradient(135deg,#9333ea,#f472b6)}
.cv-4{background:linear-gradient(135deg,#4c1d95,#a855f7)}
.cv-5{background:linear-gradient(135deg,#c026d3,#7c3aed)}
.cv-6{background:linear-gradient(135deg,#db2777,#8b5cf6)}
.channel-cover .badge{position:relative;z-index:2;background:rgba(255,255,255,.92);color:var(--brand)}
.channel-play{
 position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);
 width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--brand);
 display:grid;place-items:center;z-index:3;font-size:15px;
 box-shadow:0 16px 30px -16px rgba(0,0,0,.55);transition:transform .3s ease,background .3s ease;
}
.channel-card:hover .channel-play{transform:translate(-50%,-50%) scale(1.09);background:#fff}
.channel-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px}
.channel-body h3{font-size:17.4px}
.channel-body p{font-size:14.4px;color:var(--ink-2);margin:0}
.channel-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:auto;padding-top:6px;font-size:12.8px;color:var(--ink-3)}
.channel-meta span{display:inline-flex;align-items:center;gap:6px}
.channel-meta i{color:var(--brand)}
.grid-foot{margin-top:34px;text-align:center}
/* ================= 使用场景 ================= */
.scene-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.scene-intro h2{font-size:clamp(21px,2.5vw,30px);margin-bottom:14px}
.scene-intro p{color:var(--ink-2);font-size:15.4px}
.scene-intro .tag{margin-top:6px}
.scene-list{display:grid;gap:16px}
.scene-item{
 display:flex;gap:18px;padding:22px;border-radius:var(--radius-md);
 background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);
 transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.scene-item:hover{transform:translateX(5px);border-color:rgba(124,58,237,.45);box-shadow:var(--shadow-2)}
.scene-icon{
 width:46px;height:46px;flex:0 0 auto;border-radius:14px;
 background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:17px;
}
.scene-item h3{font-size:16.6px;margin-bottom:7px}
.scene-item p{font-size:14.3px;color:var(--ink-2);margin:0}
.scene-item small{display:inline-block;margin-top:8px;font-size:12.6px;color:var(--ink-3)}
/* ================= 深色演示区 ================= */
.band-dark{
 background:linear-gradient(150deg,#1a1430 0%,#241436 55%,#2c1030 100%);
 color:#fff;border:none;
}
.band-dark h2,.band-dark h3{color:#fff}
.band-dark .section-head p,.band-dark p{color:rgba(255,255,255,.7)}
.band-dark .eyebrow{background:rgba(255,255,255,.12);color:#f3d9ff}
.demo-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.player-frame{
 padding:16px;border-radius:26px;
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
 backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.player-topbar{display:flex;gap:7px;margin-bottom:12px}
.player-topbar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.28)}
.player-canvas{
 position:relative;min-height:252px;border-radius:18px;overflow:hidden;
 background:linear-gradient(140deg,#7c3aed 0%,#b13ac9 55%,#ec4899 100%);
 display:grid;place-items:center;
}
.player-canvas::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 72% 22%,rgba(255,255,255,.32),transparent 62%)}
.player-play{
 position:relative;z-index:3;width:64px;height:64px;border-radius:50%;
 background:rgba(255,255,255,.94);color:var(--brand);display:grid;place-items:center;font-size:20px;
 box-shadow:0 22px 44px -20px rgba(0,0,0,.65);transition:transform .3s ease;
}
.player-play:hover{transform:scale(1.07)}
.player-badge{position:absolute;right:16px;top:14px;z-index:3}
.player-meta{position:absolute;left:18px;bottom:16px;z-index:3}
.player-meta b{display:block;font-size:15px;color:#fff}
.player-meta span{font-size:12.6px;color:rgba(255,255,255,.78)}
.player-bar{height:6px;border-radius:99px;background:rgba(255,255,255,.16);margin-top:14px;overflow:hidden}
.player-bar i{display:block;height:100%;width:62%;background:var(--grad)}
.player-tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.player-tags .tag{background:rgba(255,255,255,.12);color:rgba(255,255,255,.86);margin:0}
.demo-list{display:grid;gap:14px}
.demo-item{
 display:flex;gap:16px;padding:18px 20px;border-radius:var(--radius-md);
 border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);
 transition:background .3s ease,transform .3s ease;
}
.demo-item:hover{background:rgba(255,255,255,.09);transform:translateY(-3px)}
.demo-num{width:34px;height:34px;flex:0 0 auto;border-radius:11px;background:rgba(255,255,255,.14);display:grid;place-items:center;font-size:14px;font-weight:800;color:#fff}
.demo-item h3{font-size:15.8px;margin-bottom:6px}
.demo-item p{font-size:14px;margin:0}
/* ================= 案例与口碑 ================= */
.case-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:36px}
.case-stat{padding:26px 22px;text-align:center;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .3s ease}
.case-stat:hover{transform:translateY(-4px)}
.case-stat b{display:block;font-size:30px;font-weight:800;line-height:1.25;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.case-stat span{font-size:13.8px;color:var(--ink-2)}
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.voice{display:flex;flex-direction:column;gap:14px;padding:24px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease}
.voice:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.voice .stars{color:#f59e0b;font-size:12.6px;letter-spacing:2px}
.voice p{font-size:14.8px;color:var(--ink-2);margin:0}
.voice-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;flex:0 0 auto}
.voice-user b{display:block;font-size:14px}
.voice-user span{font-size:12.6px;color:var(--ink-3)}
/* ================= 套餐 ================= */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{
 display:flex;flex-direction:column;gap:16px;padding:30px 26px;
 border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);
 box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease;
}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow-2)}
.plan h3{font-size:18.6px}
.plan .plan-desc{font-size:14.2px;color:var(--ink-3);margin:0}
.plan-price{display:flex;align-items:flex-end;gap:6px}
.plan-price b{font-size:34px;line-height:1;font-weight:800;letter-spacing:-1px}
.plan-price span{font-size:13.4px;color:var(--ink-3);padding-bottom:4px}
.plan ul{display:grid;gap:2px}
.plan ul li{display:flex;gap:10px;font-size:14.4px;color:var(--ink-2);padding:8px 0;border-bottom:1px dashed var(--line)}
.plan ul li i{color:var(--brand);margin-top:6px;font-size:12px}
.plan .btn{margin-top:auto}
.plan.is-featured{
 border:2px solid transparent;
 background-image:linear-gradient(#fff,#fff),var(--grad);
 background-origin:border-box;background-clip:padding-box,border-box;
 box-shadow:var(--shadow-2);transform:translateY(-10px);
}
.plan.is-featured:hover{transform:translateY(-14px)}
/* ================= 资讯列表 ================= */
.news-list{border-top:1px solid var(--line)}
.news-item{
 display:grid;grid-template-columns:118px 1fr auto;gap:24px;align-items:center;
 padding:22px 4px;border-bottom:1px solid var(--line);
 transition:background .3s ease,padding .3s ease;
}
.news-item:hover{background:linear-gradient(90deg,var(--brand-soft),transparent);padding-left:16px}
.news-date{font-size:13.4px;color:var(--ink-3);letter-spacing:.04em}
.news-item h3{font-size:16.4px;margin-bottom:6px}
.news-item p{font-size:14px;color:var(--ink-2);margin:0}
.news-tag{font-size:12.6px;font-weight:600;color:var(--brand);background:var(--brand-soft);padding:5px 12px;border-radius:999px;white-space:nowrap}
/* ================= FAQ + 收口 ================= */
.faq-wrap{max-width:860px;margin:0 auto 40px;display:grid;gap:14px}
.faq-item{
 padding:18px 22px;border-radius:var(--radius-md);
 background:var(--surface);border:1px solid var(--line);transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item[open]{border-color:rgba(124,58,237,.45);box-shadow:var(--shadow-1)}
.faq-item summary{
 cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-weight:700;font-size:15.6px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--brand);transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{margin:12px 0 0;font-size:14.6px;color:var(--ink-2)}
.cta-panel{
 position:relative;overflow:hidden;border-radius:28px;padding:52px 46px;
 background:var(--grad);color:#fff;box-shadow:var(--shadow-2);
}
.cta-panel::after{content:"";position:absolute;right:-90px;top:-90px;width:330px;height:330px;border-radius:50%;background:rgba(255,255,255,.16)}
.cta-panel h2{position:relative;color:#fff;font-size:clamp(22px,2.8vw,32px);margin-bottom:14px}
.cta-panel p{position:relative;color:rgba(255,255,255,.92);max-width:640px;font-size:15.4px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-panel .btn-primary{background:#fff;color:var(--brand);box-shadow:0 20px 40px -22px rgba(0,0,0,.55)}
.cta-panel .btn-primary:hover{color:var(--brand);transform:translateY(-2px)}
.cta-panel .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.cta-panel .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.cta-note{position:relative;margin-top:18px;font-size:13.4px;color:rgba(255,255,255,.8)}
/* ================= 页脚 ================= */
.site-footer{background:#141020;color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer .brand-text{background:none;-webkit-text-fill-color:#fff;color:#fff}
.site-footer .brand-mark{box-shadow:none}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.82;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:10px}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
 margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom p{margin:0}
.footer-bottom .domain{letter-spacing:.04em}
/* ================= 响应式 ================= */
@media (max-width:1024px){
 .nav-menu{gap:24px}
 .compare{grid-template-columns:1fr auto 1fr;gap:16px}
 .scene-wrap{gap:30px}
 .demo-wrap{gap:30px}
 .plan-grid{grid-template-columns:1fr 1fr}
 .plan.is-featured{transform:none}
 .plan.is-featured:hover{transform:translateY(-6px)}
 .voice-grid{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
 .nav-toggle{display:grid}
 .nav-menu{
  position:absolute;left:0;right:0;top:calc(100% + 12px);
  flex-direction:column;align-items:stretch;gap:4px;display:none;
  padding:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);box-shadow:0 24px 48px -28px rgba(22,18,31,.6);
 }
 .nav-menu.is-open{display:flex}
 .nav-menu li{width:100%}
 .nav-menu a{display:block;width:100%;padding:11px 12px;border-radius:10px;font-size:15px}
 .nav-menu a::after{display:none}
 .nav-menu a:hover,.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand)}
 .compare{grid-template-columns:1fr}
 .compare-arrow{flex-direction:row;padding:6px 0}
 .compare-arrow i{transform:rotate(90deg)}
 .stat-band{grid-template-columns:1fr 1fr;gap:22px}
 .stat+.stat{border-left:0;padding-left:0}
 .matrix-grid{grid-template-columns:1fr}
 .scene-wrap{grid-template-columns:1fr}
 .demo-wrap{grid-template-columns:1fr}
 .case-strip{grid-template-columns:1fr}
 .news-item{grid-template-columns:1fr;gap:10px}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .section{padding:56px 0}
 .section-tight{padding:40px 0}
 .hero{padding:48px 0 20px}
 .hero-lead{font-size:16px}
 .plan-grid{grid-template-columns:1fr}
 .voice-grid{grid-template-columns:1fr}
 .cta-panel{padding:38px 24px;border-radius:22px}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .channel-cover{height:140px}
}
@media (max-width:520px){
 .nav-cta{display:none}
 .brand{font-size:16.4px}
 .brand-mark{width:31px;height:31px;border-radius:10px;font-size:14px}
 .hero h1{letter-spacing:-.5px}
 .hero-actions .btn{width:100%}
 .stat-band{grid-template-columns:1fr}
 .stat b{font-size:25px}
 .card-grid>.cell{margin-bottom:18px}
 .compare-card{padding:22px 20px}
}