/* ============================================================
   豚豚剧 tuntunjuy.cn —— 「深海放映湾」主题
   深海夜 #081221 · 云白 #f5f8fc · 品牌蓝 #3b6ef5 · 珊瑚粉 #ff6289
   深海波浪 + 气泡浮点 + 圆润卡 + 下潜楼层导览 + 分组章节 + 单侧气泡轴 + 多设备环绕
   圆角语言 12-22px
   ============================================================ */
:root{
  --ink:#081221;
  --ink2:#0d1a2e;
  --ink3:#142338;
  --paper:#f5f8fc;
  --paper2:#e9eff8;
  --blu:#3b6ef5;
  --blu-d:#2a55d4;
  --blu-l:#6f97ff;
  --coral:#ff6289;
  --coral-d:#e0426b;
  --coral-l:#ff8aa6;
  --txt:#1e2a3d;
  --line:rgba(8,18,33,.14);
  --line-d:rgba(245,248,252,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--txt);background:var(--paper);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:700;border-radius:12px;transition:transform .18s,box-shadow .18s,background .18s;white-space:nowrap;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-pri{background:var(--blu);color:#fff;box-shadow:0 12px 26px rgba(59,110,245,.32)}
.btn-pri:hover{background:var(--blu-l)}
.btn-line{background:transparent;color:#eaf0fb;border-color:rgba(234,240,251,.45)}
.btn-line:hover{border-color:var(--coral);color:var(--coral-l)}
.btn-lg{padding:13px 32px;font-size:16px}
.btn-xl{padding:17px 46px;font-size:19px}

/* ---------- 头部 ---------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(8,18,33,.97);backdrop-filter:blur(8px);border-bottom:3px solid var(--blu)}
.hd-in{display:flex;align-items:center;gap:24px;height:66px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand img{border-radius:12px}
.brand-t{display:flex;flex-direction:column;line-height:1.2}
.brand-t strong{font-size:20px;letter-spacing:1px}
.brand-t small{font-size:10px;letter-spacing:2px;color:rgba(245,248,252,.58)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 11px;font-size:14px;color:rgba(245,248,252,.78);border-bottom:2px solid transparent}
.nav a:hover{color:#fff}
.nav a.on{color:var(--blu-l);border-bottom-color:var(--blu-l)}
.hd-cta{padding:9px 22px;font-size:14px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;margin-left:14px;padding:6px}
.burger span{width:24px;height:2px;background:#fff;transition:.25s}

/* ---------- 区块通用 ---------- */
.sec{padding:82px 0}
.sec-paper{background:var(--paper)}
.sec-paper2{background:var(--paper2)}
.sec-ink{background:var(--ink);color:var(--paper);border-top:4px solid var(--blu)}
.sec-ink#faq{border-top-color:var(--coral)}
.sec-h{max-width:760px;margin-bottom:42px}
.sec-ink .sec-h{margin-left:auto;margin-right:auto;text-align:center}
.kick{font-size:12px;letter-spacing:3px;font-weight:700;color:var(--blu-d);margin-bottom:14px;display:flex;align-items:center;gap:10px;text-transform:uppercase}
.sec-ink .kick{justify-content:center;color:var(--blu-l)}
.sec-h h2{font-size:32px;line-height:1.35;letter-spacing:.5px;color:var(--ink)}
.sec-ink .sec-h h2{color:#fff}
.sec-p{margin-top:12px;color:#647084;font-size:15.5px}
.sec-ink .sec-p{color:rgba(245,248,252,.66)}

/* ---------- 英雄区 · 深海放映湾 ---------- */
.hero{background:radial-gradient(760px 460px at 86% 4%,rgba(59,110,245,.22),transparent 62%),radial-gradient(560px 420px at 0% 100%,rgba(255,98,137,.16),transparent 60%),var(--ink);color:var(--paper);padding:74px 0;position:relative;overflow:hidden;border-bottom:4px solid var(--coral)}
.hero::after{content:"";position:absolute;left:-130px;bottom:-120px;width:440px;height:440px;border-radius:50%;border:1px solid rgba(111,151,255,.14);box-shadow:0 0 0 70px rgba(59,110,245,.05),0 0 0 140px rgba(255,98,137,.035);pointer-events:none}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;position:relative}
.hero h1{font-size:70px;line-height:1.06;letter-spacing:4px;color:#fff;margin:18px 0 16px;position:relative;display:inline-block}
.hero h1::after{content:"";position:absolute;left:0;bottom:-6px;width:68px;height:5px;background:linear-gradient(90deg,var(--blu),var(--coral));border-radius:3px}
.hero-slogan{font-size:23px;font-weight:700;color:#eef3fb;margin-bottom:20px}
.hero-slogan i{font-style:normal;color:var(--coral-l)}
.kick-lab{background:var(--blu);color:#fff;font-style:normal;font-size:11px;letter-spacing:2px;padding:3px 10px;border-radius:8px}
.lead{color:rgba(245,248,252,.72);font-size:15.5px;max-width:560px}
.hero-acts{display:flex;gap:16px;margin:28px 0 20px;flex-wrap:wrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.hero-tags li{font-size:13px;padding:4px 13px;border:1px solid rgba(111,151,255,.42);border-radius:20px;color:var(--blu-l)}
.hero-note{font-size:13px;color:rgba(245,248,252,.6);display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(255,98,137,.2);flex:0 0 auto}

/* 深海放映湾视觉 */
.hero-r{position:relative}
.bay{position:relative;height:482px;border-radius:28px;background:linear-gradient(165deg,#10233c 0%,#081221 100%);border:3px solid var(--blu);overflow:hidden;box-shadow:0 32px 64px rgba(0,0,0,.5)}
.bay-wave{position:absolute;top:0;left:0;width:100%;height:54px}
.bay-main{position:absolute;left:50%;top:62px;transform:translateX(-50%);width:212px;border-radius:18px;overflow:hidden;border:3px solid #fff;box-shadow:0 22px 46px rgba(0,0,0,.5);z-index:2}
.bay-mini{position:absolute;left:14px;bottom:16px;width:124px;border-radius:16px;overflow:hidden;border:3px solid var(--coral);transform:rotate(-5deg);box-shadow:0 18px 36px rgba(0,0,0,.44);z-index:3}
.bub{position:absolute;border-radius:50%;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.9),rgba(111,151,255,.3) 55%,rgba(111,151,255,.05) 100%);border:1px solid rgba(111,151,255,.45);animation:bubfloat 6s ease-in-out infinite}
.bub-a{width:26px;height:26px;right:32px;top:74px}
.bub-b{width:16px;height:16px;right:66px;top:152px;animation-delay:1.2s}
.bub-c{width:34px;height:34px;right:46px;bottom:118px;animation-delay:.6s}
.bub-d{width:12px;height:12px;left:158px;top:40px;animation-delay:2s}
@keyframes bubfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.chip{position:absolute;font-size:12.5px;font-weight:700;padding:8px 14px;border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 14px 30px rgba(0,0,0,.34);z-index:4}
.chip b{color:var(--blu-d)}
.chip-a{left:0;top:-6px}
.chip-b{right:0;bottom:20px;background:var(--coral);color:#fff}

/* ---------- 片库频道 ---------- */
.chans{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;grid-auto-rows:minmax(150px,auto);gap:1px;background:var(--ink);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.ch-tile{background:#fff;padding:22px 20px;position:relative;transition:background .2s}
.ch-tile b{display:block;font-size:15px;margin-bottom:8px;letter-spacing:.5px;color:var(--ink)}
.ch-tile p{font-size:13.6px;color:#5f6a7c;line-height:1.7}
.ch-no{position:absolute;top:12px;right:16px;font-size:28px;font-weight:800;color:rgba(8,18,33,.08);letter-spacing:-1px}
.ch-big{grid-row:span 2;background:linear-gradient(160deg,#fff 0%,#e7effa 100%);padding:28px 24px}
.ch-big b{font-size:20px}
.ch-big p{font-size:14.2px;color:#54606f;max-width:94%}
.ch-big .ch-no{font-size:40px}
.ch-fig{display:inline-block;margin-top:16px;font-size:12px;font-weight:700;letter-spacing:1px;color:#fff;background:var(--blu);padding:4px 12px;border-radius:10px}
.ch-coral{background:var(--coral);color:#fff}
.ch-coral b{color:#fff}
.ch-coral p{color:rgba(255,255,255,.88)}
.ch-coral .ch-no{color:rgba(255,255,255,.24)}

/* ---------- 本周热榜 ---------- */
.rk{display:grid;grid-template-columns:1.5fr 1fr;gap:24px}
.rk-top{position:relative;grid-row:span 2;display:grid;grid-template-columns:140px 1fr;gap:20px;padding:24px;border:2px solid var(--blu);border-radius:16px;background:var(--ink2);box-shadow:0 22px 50px rgba(0,0,0,.42)}
.no1{position:absolute;top:-13px;left:20px;background:var(--coral);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:1px;padding:5px 13px;border-radius:10px}
.rk-poster{position:relative;border-radius:12px;overflow:hidden;align-self:start;border:1px solid var(--line-d)}
.stamp{position:absolute;bottom:8px;right:8px;font-style:normal;font-size:11px;font-weight:700;color:#fff;background:rgba(59,110,245,.95);padding:3px 9px;border-radius:8px}
.rk-info h3{font-size:20px;color:#fff;margin-bottom:6px}
.rk-info h3 small{font-size:12px;font-weight:400;color:var(--blu-l);margin-left:8px}
.rk-meta{font-size:13px;color:rgba(245,248,252,.6);margin-bottom:10px}
.rk-score{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}
.rk-score b{font-size:34px;color:var(--coral);line-height:1}
.rk-score span{font-size:12.5px;color:rgba(245,248,252,.6)}
.rk-desc{font-size:14px;color:rgba(245,248,252,.78)}
.rk-tag{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--blu-l);border-left:3px solid var(--blu-l);padding-left:10px}
.rk-shot{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px;border-radius:16px;background:var(--ink2);border:1px solid var(--line-d)}
.ph-shot{border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.rk-shot .ph-shot{width:170px;border-color:var(--line-d)}
.rk-shot p{font-size:12.5px;color:rgba(245,248,252,.6)}
.rk-list{border-radius:16px;background:var(--ink2);border:1px solid var(--line-d);padding:8px 20px}
.rk-list li{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line-d)}
.rk-list li:last-child{border-bottom:0}
.rl-no{font-size:15px;font-weight:800;color:var(--blu-l);flex:0 0 26px}
.rk-list li div{flex:1;min-width:0}
.rk-list li b{display:block;font-size:14.6px;color:#fff;font-weight:600}
.rk-list li em{font-style:normal;font-size:12.3px;color:rgba(245,248,252,.52)}
.rk-list li strong{font-size:16px;color:var(--coral)}

/* ---------- 数字绸带 ---------- */
.ribbon{background:linear-gradient(135deg,var(--coral) 0%,#ff7a9c 55%,var(--coral) 100%);color:#fff;padding:34px 0;position:relative;border-top:4px solid var(--blu);border-bottom:4px solid var(--blu)}
.ribbon::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,.07) 0 10px,transparent 10px 20px);pointer-events:none}
.ribbon-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;text-align:center}
.rb-i b{font-size:38px;font-weight:800;line-height:1;letter-spacing:-1px}
.rb-i i{font-style:normal;font-size:16px;font-weight:700;margin-left:3px}
.rb-i span{display:block;font-size:13.4px;margin-top:8px;color:rgba(255,255,255,.9)}

/* ---------- 内容分区 ---------- */
.zones{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.zone{padding:22px;border-radius:14px;background:#fff;border:1px solid var(--line);position:relative}
.zone h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:9px;color:var(--ink)}
.z-ico{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:700;flex:0 0 auto;color:#fff}
.z1 .z-ico{background:var(--blu)}
.z2 .z-ico{background:var(--coral)}
.z3 .z-ico{background:var(--ink)}
.z4 .z-ico{background:var(--blu-d)}
.zone p{font-size:14px;color:#5f6a7c;line-height:1.72}
.z-new{margin-top:14px;display:grid;grid-template-columns:1fr 240px;gap:26px;align-items:center;padding:26px;border-radius:16px;background:linear-gradient(135deg,var(--ink) 0%,var(--blu-d) 100%);color:var(--paper);border-left:5px solid var(--coral);box-shadow:0 16px 38px rgba(8,18,33,.28)}
.zn-tag{display:inline-block;font-size:11.5px;letter-spacing:2px;font-weight:700;color:var(--coral-l);border:1px solid rgba(255,138,166,.5);padding:3px 11px;border-radius:8px;margin-bottom:14px}
.z-new h3{font-size:20px;color:#fff;margin-bottom:10px}
.z-new p{font-size:14.2px;color:rgba(245,248,252,.78);margin-bottom:18px}
.zn-r img{border-radius:12px;border:1px solid var(--line-d)}

/* ---------- 精选专题 ---------- */
.tps{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:start}
.tps-l{display:flex;flex-direction:column;gap:14px}
.tp-i{display:grid;grid-template-columns:112px 1fr;gap:18px;padding:16px;border-radius:14px;background:var(--paper2);border-left:4px solid var(--blu);align-items:center}
.tp-i:nth-child(2){border-left-color:var(--coral)}
.tp-i:nth-child(3){border-left-color:var(--ink)}
.tp-img{border-radius:10px;overflow:hidden}
.tp-no{font-size:11.5px;font-weight:800;letter-spacing:2px;color:var(--blu-d)}
.tp-t h3{font-size:17px;margin:5px 0 6px;color:var(--ink)}
.tp-t p{font-size:13.8px;color:#5f6a7c;line-height:1.7}
.tps-r{display:flex;flex-direction:column;align-items:center;gap:10px;padding:20px;border-radius:16px;background:var(--ink);color:var(--paper)}
.tps-r .ph-shot{width:180px;border-color:var(--line-d)}
.tps-cap{font-size:12.5px;color:rgba(245,248,252,.6)}

/* ---------- 应用画面长卷 ---------- */
.reel{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rl-f{border-radius:14px;overflow:hidden;background:var(--ink2);border:1px solid var(--line-d)}
.rl-f figcaption{display:flex;align-items:center;gap:9px;padding:10px 13px;border-bottom:2px solid var(--blu);background:rgba(255,255,255,.03)}
.rl-f:nth-child(2n) figcaption{border-bottom-color:var(--coral)}
.rl-f figcaption b{font-size:11.5px;letter-spacing:1.5px;color:var(--blu-l)}
.rl-f:nth-child(2n) figcaption b{color:var(--coral-l)}
.rl-f figcaption span{font-size:12.5px;color:rgba(245,248,252,.68)}
.rl-f img{width:100%}

/* ---------- 功能四格 ---------- */
.funcs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.fn-i{padding:22px 20px;border-radius:14px;background:#fff;border:1px solid var(--line);border-top:4px solid var(--blu);position:relative}
.fn-i:nth-child(odd){border-top-color:var(--coral)}
.fn-no{font-size:11.5px;font-weight:800;letter-spacing:2px;color:var(--blu-d)}
.fn-i:nth-child(odd) .fn-no{color:var(--coral-d)}
.fn-i h3{font-size:16.5px;margin:8px 0 8px;color:var(--ink)}
.fn-i p{font-size:13.8px;color:#5f6a7c;line-height:1.72}

/* ---------- 上手四步 · 下潜深度导览（GUIDE 范式 H） ---------- */
.floors{position:relative;display:flex;flex-direction:column;gap:16px;max-width:940px;margin:0 auto;padding-left:60px}
.floors::before{content:"";position:absolute;left:22px;top:20px;bottom:20px;width:2px;background:repeating-linear-gradient(180deg,rgba(59,110,245,.55) 0 7px,transparent 7px 14px)}
.fl{position:relative;display:grid;grid-template-columns:118px 1fr auto;gap:20px;align-items:center;padding:20px 24px;border-radius:16px;background:#fff;border:1px solid var(--line);border-left:5px solid var(--blu);box-shadow:0 14px 30px rgba(8,18,33,.07)}
.fl:nth-child(even){border-left-color:var(--coral)}
.fl::before{content:"";position:absolute;left:-46px;top:50%;margin-top:-9px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--blu);box-shadow:0 0 0 4px rgba(59,110,245,.14)}
.fl:nth-child(even)::before{border-color:var(--coral);box-shadow:0 0 0 4px rgba(255,98,137,.14)}
.fl-no b{display:block;font-size:32px;font-weight:800;color:var(--blu);line-height:1;letter-spacing:-1px}
.fl:nth-child(even) .fl-no b{color:var(--coral)}
.fl-depth{font-size:12px;font-weight:700;color:#7b8698;letter-spacing:1px}
.fl-t h3{font-size:18px;margin-bottom:7px;color:var(--ink)}
.fl-t p{font-size:14px;color:#5b6472;line-height:1.72}
.fl-tag{font-size:12.5px;font-weight:700;color:#fff;background:var(--blu);padding:5px 14px;border-radius:20px;white-space:nowrap}
.fl:nth-child(even) .fl-tag{background:var(--coral)}

/* ---------- 常见疑问 · 分组章节折叠（FAQ 范式 J） ---------- */
.faq-groups{display:flex;flex-direction:column;gap:18px;max-width:940px;margin:0 auto}
.fgroup{background:var(--ink2);border:1px solid var(--line-d);border-radius:16px;overflow:hidden;transition:border-color .25s}
.fgroup.open{border-color:rgba(59,110,245,.5)}
.fg-head{display:flex;align-items:center;gap:16px;width:100%;padding:20px 24px;background:transparent;border:0;color:#fff;text-align:left}
.fg-no{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--blu);color:#fff;font-size:15px;font-weight:800;display:grid;place-items:center}
.fgroup:nth-child(2) .fg-no{background:var(--coral)}
.fgroup:nth-child(3) .fg-no{background:var(--ink3);border:1px solid var(--line-d)}
.fg-head h3{font-size:18px;font-weight:700;flex:1;color:#fff}
.fg-cnt{font-size:12px;color:rgba(245,248,252,.55);border:1px solid var(--line-d);padding:3px 10px;border-radius:20px}
.fg-arw{flex:0 0 auto;font-size:22px;font-weight:800;color:var(--blu-l);transition:transform .35s}
.fgroup.open .fg-arw{transform:rotate(135deg);color:var(--coral-l)}
.fg-body{max-height:0;overflow:hidden;transition:max-height .45s ease;border-top:1px dashed var(--line-d)}
.fgroup.open .fg-body{max-height:1400px}
.qa{border-bottom:1px solid var(--line-d)}
.qa:last-child{border-bottom:0}
.qa-q{display:flex;align-items:center;gap:12px;width:100%;padding:16px 24px;background:transparent;border:0;color:#fff;text-align:left}
.qa-q h4{font-size:15.5px;font-weight:600;flex:1;color:rgba(245,248,252,.92)}
.qa-fold{flex:0 0 auto;font-size:19px;font-weight:800;color:var(--blu-l);transition:transform .35s}
.qa.open .qa-fold{transform:rotate(45deg);color:var(--coral-l)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.qa-a p{font-size:14px;color:rgba(245,248,252,.78);line-height:1.78;padding:0 24px 18px 48px;border-top:1px dashed rgba(245,248,252,.12);padding-top:14px}

/* ---------- 观众留言 · 单侧气泡轴（NOTES 范式 I） ---------- */
.naxis{position:relative;max-width:900px;margin:0 auto;padding-left:56px}
.naxis::before{content:"";position:absolute;left:18px;top:10px;bottom:64px;width:2px;background:linear-gradient(180deg,var(--blu),var(--coral))}
.ax-i{position:relative;margin-bottom:20px}
.ax-dot{position:absolute;left:-46px;top:24px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--blu);box-shadow:0 0 0 4px rgba(59,110,245,.16)}
.ax-i:nth-child(even) .ax-dot{border-color:var(--coral);box-shadow:0 0 0 4px rgba(255,98,137,.16)}
.ax-bub{padding:18px 22px;border-radius:6px 18px 18px 18px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--blu);box-shadow:0 12px 28px rgba(8,18,33,.07)}
.ax-i:nth-child(even) .ax-bub{border-left-color:var(--coral)}
.ax-top{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.ax-top b{font-size:14.5px;color:var(--ink)}
.ax-top i{font-style:normal;font-size:12.5px;color:var(--coral);letter-spacing:1px}
.ax-bub p{font-size:14px;color:#525c6b;line-height:1.75}
.ax-time{display:block;margin-top:10px;font-size:12px;color:#8b95a5}
.naxis-note{margin-top:10px;font-size:12.4px;color:#7b8698}

/* ---------- 下载 · 多设备环绕（GET 范式 E） ---------- */
.sec-get{background:radial-gradient(760px 420px at 50% 0%,rgba(59,110,245,.32),transparent 62%),var(--ink);color:var(--paper);padding:86px 0;position:relative;overflow:hidden}
.get-h{max-width:760px;margin:0 auto 46px;text-align:center}
.get-h .kick{justify-content:center;color:var(--blu-l)}
.get-h h2{font-size:32px;color:#fff;line-height:1.35}
.get-p{margin-top:12px;color:rgba(245,248,252,.66);font-size:15.5px}
.mockups{display:flex;align-items:flex-end;justify-content:center;gap:26px;margin-bottom:44px}
.mock{display:flex;flex-direction:column;align-items:center;gap:12px}
.mock-frame{position:relative;border-radius:22px;overflow:hidden;border:4px solid rgba(255,255,255,.9);box-shadow:0 26px 54px rgba(0,0,0,.5)}
.mock-frame::after{content:"";position:absolute;top:8px;left:50%;margin-left:-24px;width:48px;height:5px;border-radius:3px;background:rgba(8,18,33,.5)}
.mock-l .mock-frame{width:150px;transform:rotate(-6deg)}
.mock-r .mock-frame{width:150px;transform:rotate(6deg)}
.mock-c .mock-frame{width:196px;border-color:var(--blu);box-shadow:0 34px 66px rgba(59,110,245,.42)}
.mock-cap{font-size:12.5px;color:rgba(245,248,252,.66)}
.get-card{max-width:640px;margin:0 auto;background:#fff;color:var(--ink);border-radius:18px;padding:34px 36px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;box-shadow:0 30px 64px rgba(8,18,33,.42);border-top:5px solid var(--blu)}
.get-logo{border-radius:16px;box-shadow:0 12px 26px rgba(8,18,33,.18)}
.get-card h3{font-size:30px;letter-spacing:2px}
.get-s{font-size:14px;color:#5b6472}
.get-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.get-tags span{font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:20px;border:1px solid rgba(59,110,245,.4);color:var(--blu-d)}
.get-links{text-align:center;font-size:13.5px;color:rgba(245,248,252,.72);margin-top:22px}
.get-upd{text-align:center;font-size:12.4px;color:rgba(245,248,252,.42);margin-top:10px}

/* ---------- 页脚 ---------- */
.ft{background:var(--ink);color:var(--paper);border-top:4px solid var(--blu)}
.ft-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:56px 24px 40px;max-width:1180px;margin:0 auto}
.ft-brand p{font-size:13.8px;color:rgba(245,248,252,.62);margin-top:16px;line-height:1.78}
.ft-col h4{font-size:14.5px;margin-bottom:16px;color:#fff}
.ft-col li{margin-bottom:10px}
.ft-col a{font-size:13.8px;color:rgba(245,248,252,.64)}
.ft-col a:hover{color:var(--blu-l)}
.ft-b{border-top:1px solid var(--line-d)}
.ft-b .wrap{padding:20px 24px 26px;text-align:center}
.ft-icp{font-size:13px;color:rgba(245,248,252,.56);margin-bottom:8px}
.ft-copy{font-size:13px;color:rgba(245,248,252,.46)}

/* ---------- 悬浮 / 返回顶部 ---------- */
.backtop{position:fixed;right:24px;bottom:24px;z-index:70;width:44px;height:44px;border-radius:12px;border:0;background:var(--ink3);color:var(--blu-l);font-size:19px;box-shadow:0 10px 24px rgba(8,18,33,.45);opacity:0;pointer-events:none;transition:opacity .25s,transform .15s}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{transform:translateY(-2px)}

/* ---------- 入场动画 ---------- */
.io{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.io.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .hero-in{grid-template-columns:1fr;gap:44px}
  .hero-r{order:2}
  .hero::after{display:none}
  .bay{height:440px}
  .rk{grid-template-columns:1fr}
  .rk-top{grid-row:auto}
  .tps{grid-template-columns:1fr}
  .reel{grid-template-columns:repeat(2,1fr)}
  .funcs{grid-template-columns:repeat(2,1fr)}
  .chans{grid-template-columns:repeat(2,1fr)}
  .ch-big{grid-row:span 1}
  .fl{grid-template-columns:96px 1fr}
  .ft-in{grid-template-columns:1fr 1fr;gap:26px}
}
@media(max-width:768px){
  .wrap{padding:0 18px}
  .nav{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;background:var(--ink);padding:12px 18px;gap:2px;border-bottom:3px solid var(--blu)}
  .nav.open{display:flex}
  .nav a{padding:11px 4px;border-bottom:1px solid var(--line-d)}
  .nav a.on{border-bottom-color:var(--blu-l)}
  .burger{display:flex}
  .hd-cta{display:none}
  .hero{padding:50px 0}
  .hero h1{font-size:42px;letter-spacing:2px}
  .hero-slogan{font-size:19px}
  .bay{height:392px}
  .bay-main{width:168px;top:56px}
  .bay-mini{width:104px;left:10px;bottom:14px}
  .chip{font-size:11.5px;padding:6px 11px}
  .chip-a{left:0;top:-4px}
  .chip-b{right:0;bottom:14px}
  .sec{padding:56px 0}
  .sec-h h2{font-size:24px}
  .chans{grid-template-columns:1fr}
  .ch-big{grid-row:span 1}
  .rb-i b{font-size:30px}
  .zones{grid-template-columns:1fr}
  .z-new{grid-template-columns:1fr;gap:20px}
  .tp-i{grid-template-columns:92px 1fr;gap:14px}
  .floors{padding-left:44px}
  .floors::before{left:14px}
  .fl{grid-template-columns:1fr;gap:12px;padding:18px 20px}
  .fl::before{left:-38px;top:22px;margin-top:0}
  .fl-no{display:flex;align-items:baseline;gap:10px}
  .fl-tag{justify-self:start}
  .fg-head{padding:16px 18px;gap:12px}
  .fg-no{width:38px;height:38px;font-size:14px}
  .fg-head h3{font-size:16px}
  .qa-q{padding:15px 18px}
  .qa-q h4{font-size:14.8px}
  .qa-a p{padding:0 18px 16px 18px}
  .naxis{padding-left:44px}
  .naxis::before{left:13px}
  .ax-dot{left:-38px;top:22px}
  .ax-bub{padding:15px 18px}
  .mockups{gap:12px}
  .mock-l .mock-frame,.mock-r .mock-frame{width:96px;border-width:3px}
  .mock-c .mock-frame{width:132px;border-width:3px}
  .mock-frame{border-radius:16px}
  .get-card{padding:26px 20px}
  .get-card h3{font-size:24px}
  .btn-xl{padding:15px 28px;font-size:17px}
  .ft-in{grid-template-columns:1fr;padding:40px 18px 30px}
  .backtop{right:18px;bottom:24px;width:40px;height:40px}
}
@media(max-width:420px){
  .reel{grid-template-columns:1fr}
  .funcs{grid-template-columns:1fr}
  .mock-l,.mock-r{display:none}
}