/* 汽水音乐 仿官网·深色 neon 绿主题（母版 https://qishui.douyin.com）。品牌色由 BaseLayout 内联 :root 提供。 */
*{box-sizing:border-box;margin:0;padding:0}
:root{--brand:#27fd41;--brand2:#24fdcf;--brand3:#d2fb46;--ink:#0b0b0d;--panel:#15161a;--panel2:#1c1e24;--line:#2a2c33;--tx:#f4f5f7;--mut:#9aa0ab;--mut2:#6c727d}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--tx);background:var(--ink);line-height:1.74;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{line-height:1.22;letter-spacing:-.01em}
section{position:relative}

/* ---------- 顶栏 ---------- */
.site-hd{position:sticky;top:0;z-index:30;background:rgba(11,11,13,.82);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:22px;height:62px}
.brand{display:flex;align-items:center}
.brand img{height:30px;width:auto}
.nav{display:flex;gap:24px;margin-left:14px;flex:1;flex-wrap:wrap}
.nav a{color:var(--mut);font-size:15px;font-weight:500}
.nav a:hover{color:var(--tx);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 20px;border-radius:999px;background:var(--brand);color:#06210c;font-weight:700;font-size:15px;box-shadow:0 6px 22px rgba(39,253,65,.28)}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn.ghost{background:transparent;color:var(--tx);border:1px solid var(--line);box-shadow:none}

/* ---------- Hero（官网两栏：左文案+下载，右设备样机） ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(1100px 540px at 12% -8%,rgba(39,253,65,.16),transparent 60%),radial-gradient(900px 520px at 96% 6%,rgba(36,253,207,.12),transparent 62%),linear-gradient(180deg,#0c0d10,#0b0b0d);z-index:-1}
.hero-in{display:grid;grid-template-columns:1.04fr 1.1fr;gap:40px;align-items:center;padding:64px 0 56px}
.hero-logo{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.hero-logo .ic{width:46px;height:46px;flex:none}
.hero-logo b{font-size:34px;font-weight:800;letter-spacing:.02em}
.hero h1{font-size:40px;font-weight:800;margin:6px 0 14px;background:linear-gradient(92deg,#fff 30%,var(--brand) 130%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:17px;color:var(--mut);max-width:30em;margin-bottom:24px}
.dlbtns{display:flex;flex-wrap:wrap;gap:12px}
.dlbtn{display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:14px;background:var(--panel2);border:1px solid var(--line);color:var(--tx);font-weight:600;font-size:15px;min-width:150px}
.dlbtn:hover{text-decoration:none;border-color:var(--brand);background:#202329}
.dlbtn.primary{background:var(--brand);color:#06210c;border-color:transparent;box-shadow:0 8px 26px rgba(39,253,65,.26)}
.dlbtn img,.dlbtn svg{width:20px;height:20px}
.dlnote{margin-top:16px;color:var(--mut2);font-size:13px;display:flex;gap:18px;flex-wrap:wrap}
.dlnote a{color:var(--mut)}
.hero-media{position:relative}
.devframe{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.devframe img{width:100%;display:block}

/* ---------- 通用区块 ---------- */
.section{padding:46px 0;border-top:1px solid var(--line)}
.section.alt{background:linear-gradient(180deg,#0e0f13,#0b0b0d)}
.eyebrow{color:var(--brand);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.section h2{font-size:25px;margin:0 0 6px}
.section h3{font-size:19px;margin:24px 0 4px;color:#eef0f3}
.lead{color:var(--mut);max-width:60em;margin:4px 0 8px}
p{margin:10px 0;color:#d7dae0}
.answer{margin:8px 0 12px;padding:13px 16px;border-left:3px solid var(--brand);background:rgba(39,253,65,.06);border-radius:0 10px 10px 0;color:#eaf6ec;font-size:15.5px}
.muted{color:var(--mut)}

/* ---------- 卡片栅格 ---------- */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}
.card h3{margin:6px 0 6px;font-size:17px}
.card p{font-size:14.5px;color:var(--mut);margin:4px 0}
.card .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:rgba(39,253,65,.12);color:var(--brand);margin-bottom:6px}
.featimg{border-radius:14px;border:1px solid var(--line);overflow:hidden;margin:8px 0}

/* ---------- 步骤/要点 ---------- */
.steps{counter-reset:s;display:grid;gap:14px;margin:14px 0}
.step{position:relative;padding:14px 16px 14px 56px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:14px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#06210c;font-weight:800;display:grid;place-items:center}
.step b{display:block;margin-bottom:2px}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0}
.chip{padding:6px 13px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);color:var(--mut);font-size:13.5px}

/* ---------- 对比表 ---------- */
.cmp{width:100%;border-collapse:collapse;margin:14px 0;font-size:14.5px;overflow:hidden;border-radius:12px;border:1px solid var(--line)}
.cmp th,.cmp td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left}
.cmp thead th{background:var(--panel2);color:var(--tx);font-weight:700}
.cmp tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.cmp td:first-child{color:var(--tx);font-weight:600}
.ok{color:var(--brand);font-weight:700}
.no{color:#ff6b6b}

/* ---------- FAQ ---------- */
.faq{margin:10px 0}
.faq details{border:1px solid var(--line);border-radius:13px;background:var(--panel);margin:9px 0;overflow:hidden}
.faq summary{cursor:pointer;padding:14px 18px;font-weight:600;color:#eef0f3;list-style:none;position:relative;padding-right:42px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:12px;color:var(--brand);font-size:20px;font-weight:700}
.faq details[open] summary::after{content:"\2212"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq p{padding:13px 18px 16px;margin:0;color:var(--mut);font-size:14.5px}

/* ---------- 源/面包屑/相关 ---------- */
.crumb{font-size:13px;color:var(--mut2);padding:16px 0 0}
.crumb a{color:var(--mut)}
.sources{margin:16px 0 6px;font-size:13.5px;color:var(--mut2);border-top:1px dashed var(--line);padding-top:14px}
.sources a{color:var(--mut)}
.related{display:flex;flex-wrap:wrap;gap:8px 16px;margin:14px 0}
.related a{color:var(--mut)}

/* ---------- 工具箱 ---------- */
.toolbox{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;margin:14px 0}
.toolbox label{display:block;font-size:13px;color:var(--mut);margin:12px 0 5px}
.toolbox select,.toolbox input{width:100%;padding:11px 13px;border-radius:11px;border:1px solid var(--line);background:var(--ink);color:var(--tx);font-size:15px}
.tb-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tb-out{margin-top:18px;padding:18px;border-radius:14px;background:linear-gradient(180deg,rgba(39,253,65,.1),rgba(39,253,65,.03));border:1px solid rgba(39,253,65,.3)}
.tb-out .big{font-size:30px;font-weight:800;color:var(--brand)}
.tb-out .row{display:flex;justify-content:space-between;padding:5px 0;color:var(--mut);font-size:14px;border-top:1px dashed var(--line)}

/* ---------- 页脚 ---------- */
.site-ft{border-top:1px solid var(--line);background:#0a0a0c;padding:38px 0 30px;margin-top:18px}
.ftgrid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ftbrand{display:flex;gap:13px;align-items:flex-start}
.ftbrand strong{font-size:18px}
.ftslogan{color:var(--mut2);font-size:13.5px;margin-top:3px}
.ftnav{max-width:60%}
.ftnav a{color:var(--mut);font-size:14px}
.ftbottom{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.ftbottom small{color:var(--mut2);font-size:12.5px}

/* ---------- RTL（ar fa he ur）：镜像非对称元素，排版别乱 ---------- */
[dir="rtl"] body{text-align:right}
[dir="rtl"] .answer{border-left:0;border-right:3px solid var(--brand);border-radius:10px 0 0 10px}
[dir="rtl"] .step{padding:14px 56px 14px 16px}
[dir="rtl"] .step::before{left:auto;right:14px}
[dir="rtl"] .faq summary{padding-right:18px;padding-left:42px}
[dir="rtl"] .faq summary::after{right:auto;left:18px}
[dir="rtl"] .sources,[dir="rtl"] .cmp th,[dir="rtl"] .cmp td{text-align:right}
[dir="rtl"] .crumb{direction:rtl}
[dir="rtl"] .dlbtn,[dir="rtl"] .btn{direction:rtl}

/* ---------- 响应式 ---------- */
@media(max-width:860px){
  .hero-in{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .hero h1{font-size:30px}.hero-logo b{font-size:27px}
  .g3,.g4,.g2{grid-template-columns:1fr}
  .tb-row{grid-template-columns:1fr}
  .nav{display:none}
  .ftnav{max-width:100%}
}