/* 搭友搭官网设计系统
 * 版式与数值取自 getsteps.app 实测（Tailwind neutral 色阶、圆角、字号、容器宽），
 * 强调色换成我们 App 图标的紫。由 tools/site/build.py 生成的页面共用这一份。
 * 改这里就是改全站，别在单页里另起一套。 */

@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal; font-weight: 400 700; font-display: swap;
  src: url('/assets/bricolage-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Tailwind neutral —— getsteps 全站就这一套灰 */
  --n-50:#fafafa; --n-100:#f5f5f5; --n-200:#e5e5e5; --n-300:#d4d4d4; --n-400:#a3a3a3;
  --n-500:#737373; --n-600:#525252; --n-700:#404040; --n-800:#262626; --n-900:#171717; --n-950:#0a0a0a;
  --paper:#ffffff;
  /* 强调色：图标紫。--accent 给大字/图形/按钮底（4.08:1），正文链接走 --accent-ink（5.74:1） */
  --accent:#706EED; --accent-ink:#5654D8; --accent-hover:#5F5DDE;
  --accent-50:#F5F4FE; --accent-100:#ECEBFD; --accent-200:#DCDAFB;   /* getsteps 的桃色底，换成同明度的淡紫 */
  --star:#C97C05;
  --ok:#15803d; --ok-bg:#f0fdf4; --ok-line:#bbf7d0;
  --info:#1d4ed8; --info-bg:#eff6ff; --info-line:#bfdbfe;
  --warn:#a16207; --warn-bg:#fefce8; --warn-line:#fde68a;
  --radius-sm:8px; --radius:12px; --radius-lg:16px; --radius-xl:24px;
  --shadow-card: 0 1px 2px rgba(0,0,0,.04);
  --font: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --n-50:#111113; --n-100:#18181b; --n-200:#27272a; --n-300:#3f3f46; --n-400:#71717a;
    --n-500:#a1a1aa; --n-600:#b4b4bb; --n-700:#d4d4d8; --n-800:#e4e4e7; --n-900:#f4f4f5; --n-950:#fafafa;
    --paper:#0a0a0b;
    --accent:#8F8DF5; --accent-ink:#A7A5F8; --accent-hover:#A09EF7;
    --accent-50:#16152a; --accent-100:#1c1b36; --accent-200:#2a2850;
    --star:#F5A524;
    --ok:#4ade80; --ok-bg:#0f1f15; --ok-line:#14532d;
    --info:#93c5fd; --info-bg:#0f172a; --info-line:#1e3a8a;
    --warn:#fcd34d; --warn-bg:#1f1a0b; --warn-line:#713f12;
  }
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
html, body { overflow-x:hidden; max-width:100%; }
body { font-family:var(--font); background:var(--paper); color:var(--n-900); font-size:16px; line-height:1.6;
       -webkit-font-smoothing:antialiased; overflow-wrap:break-word; }
img, svg { display:block; max-width:100%; height:auto; }
a { color:inherit; text-decoration:none; }
button, input, select { font:inherit; color:inherit; }
:where(a, button, input, select, summary):focus-visible { outline:2px solid var(--accent-ink); outline-offset:3px; border-radius:6px; }

.container { max-width:1152px; margin:0 auto; padding:0 24px; }
.container-4xl { max-width:896px; margin:0 auto; padding:0 24px; }
.container-3xl { max-width:768px; margin:0 auto; padding:0 24px; }
.center { text-align:center; }
.muted { color:var(--n-500); }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }

/* ---------------- 顶栏 ---------------- */
.site-header { position:sticky; top:0; z-index:50; background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:saturate(180%) blur(14px); -webkit-backdrop-filter:saturate(180%) blur(14px); border-bottom:1px solid var(--n-200); }
.site-header .bar { height:64px; display:flex; align-items:center; justify-content:space-between; gap:16px; max-width:1280px; margin:0 auto; padding:0 24px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:600; font-size:16px; letter-spacing:-.01em; white-space:nowrap; }
.brand img { width:30px; height:30px; border-radius:8px; outline:1px solid rgba(0,0,0,.06); outline-offset:-1px; }
.nav { display:flex; align-items:center; gap:28px; font-size:14px; color:var(--n-600); }
.nav a:hover, .nav a[aria-current="page"] { color:var(--n-900); }
.btn-dark { display:inline-flex; align-items:center; gap:6px; height:40px; padding:0 18px; border-radius:999px; background:var(--n-900); color:var(--paper);
  font-size:14px; font-weight:500; white-space:nowrap; transition:opacity .15s; }
.btn-dark:hover { opacity:.85; }
@media (max-width:720px){ .nav .hide-sm { display:none; } .nav { gap:18px; } }

/* ---------------- 通用字号（取自 getsteps 实测） ---------------- */
.h-display { font-size:clamp(38px,5.4vw,60px); line-height:1.05; font-weight:500; letter-spacing:-.025em; }
.h-page { font-size:clamp(32px,4.4vw,48px); line-height:1.1; font-weight:700; letter-spacing:-.02em; }
.h-section { font-size:clamp(26px,3vw,36px); line-height:1.15; font-weight:500; letter-spacing:-.02em; }
.h-sub { font-size:20px; line-height:1.4; font-weight:600; letter-spacing:-.01em; }
.lede { font-size:clamp(16px,1.6vw,18px); line-height:1.65; color:var(--n-600); }
.eyebrow { font-size:14px; letter-spacing:.3em; text-transform:uppercase; font-weight:500; }

/* ---------------- 按钮 / 徽章 / 星级 ---------------- */
.appstore { display:inline-block; transition:transform .15s, opacity .15s; }
.appstore:hover { transform:translateY(-1px); opacity:.88; }
.appstore img { height:48px; width:auto; }
.appstore.lg img { height:54px; }
.rating { display:flex; align-items:center; justify-content:center; gap:8px; font-size:14px; color:var(--n-500); flex-wrap:wrap; }
.stars { color:var(--star); letter-spacing:.06em; font-size:14px; }
.dot-sep::before { content:"·"; margin-right:8px; color:var(--n-300); }
.btn-accent { display:inline-flex; align-items:center; justify-content:center; gap:6px; height:44px; padding:0 20px; border-radius:var(--radius);
  background:var(--accent); color:#fff; font-size:15px; font-weight:600; border:0; cursor:pointer; transition:background .15s; }
.btn-accent:hover { background:var(--accent-hover); }
.btn-outline { display:inline-flex; align-items:center; justify-content:center; height:40px; padding:0 16px; border-radius:999px;
  border:1px solid var(--n-200); background:var(--paper); font-size:14px; font-weight:500; }
.btn-outline:hover { border-color:var(--n-400); }
.pill-tag { display:inline-flex; align-items:center; gap:6px; padding:4px 12px; border-radius:999px; border:1px solid var(--n-200);
  font-size:12px; font-weight:500; color:var(--n-500); background:var(--paper); }
.pill-tag svg { width:13px; height:13px; }
.chip { display:inline-flex; align-items:center; gap:8px; padding:8px 14px; border-radius:var(--radius); border:1px solid var(--n-200);
  background:var(--paper); font-size:14px; color:var(--n-700); }
.chip svg { width:15px; height:15px; color:var(--n-500); }
.chip.accent { background:var(--accent-50); border-color:var(--accent-200); color:var(--accent-ink); }
.chip-row { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; max-width:640px; margin:0 auto; }   /* getsteps 的标签块收在窄栏里折两行，不拉满整条 */
.chip.pill { border-radius:999px; padding:6px 14px; }

/* ---------------- 首页：Hero ---------------- */
.hero { padding:96px 0 88px; text-align:center; }
.hero-icon { width:96px; height:96px; margin:0 auto 20px; border-radius:22px;
  box-shadow:0 20px 40px -14px rgba(20,18,60,.32), 0 3px 10px -3px rgba(20,18,60,.14); outline:1px solid rgba(0,0,0,.08); outline-offset:-1px; }
.hero-name { font-size:15px; color:var(--n-500); margin-bottom:16px; }
.hero h1 em { font-style:normal; color:var(--accent); display:block; }
/* 首屏标题第一行「饮食・运动・恢复，」是 9 个全宽字：375 宽手机上 38px 放不下，会从「恢复」中间断开。
   窄屏按「一行放下 9 个字」收字号（24px 两侧留白），宽屏仍是 .h-display 那档；首屏文案字数变了这里的 9 跟着改 */
.hero h1 { font-size:min(clamp(38px,5.4vw,60px), calc((100vw - 48px) / 9)); }
.hero .lede { max-width:580px; margin:22px auto 0; }
.hero .appstore { margin-top:32px; }
.hero .rating { margin-top:18px; }

/* ---------------- 首页：黑色反差带 ---------------- */
.band-dark { background:#000; color:#fff; padding:96px 0; }
@media (prefers-color-scheme: dark){ .band-dark { background:#15151F; } }   /* 深色页上反差带要比页面亮，才还是一块 */
.band-dark .eyebrow { color:rgba(255,255,255,.8); text-align:center; }
.laurel-proof { display:flex; align-items:center; justify-content:center; gap:clamp(10px,2.5vw,22px); }
.laurel-proof svg { width:clamp(34px,5vw,58px); height:auto; color:rgba(255,255,255,.55); flex:none; }
.laurel-proof svg.r { transform:scaleX(-1); }
.laurel-proof .num { font-size:clamp(50px,7.6vw,92px); font-weight:500; letter-spacing:-.04em; line-height:1; text-align:center; }
.laurel-proof .cap { margin-top:12px; text-align:center; color:rgba(255,255,255,.7); font-size:15px; letter-spacing:.18em; }
.band-dark .rating { margin-top:22px; color:rgba(255,255,255,.62); }
.band-dark .rating .stars { color:#F5A524; }
.band-dark .dot-sep::before { color:rgba(255,255,255,.3); }
.dark-cards { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:56px; }
@media (max-width:980px){ .dark-cards { grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .dark-cards { grid-template-columns:1fr; } }
.dark-card { background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.1); border-radius:var(--radius-lg); padding:24px; }
.dark-card .k { font-size:clamp(28px,3vw,34px); font-weight:500; letter-spacing:-.03em; line-height:1.1; }
.dark-card .k small { font-size:.5em; color:rgba(255,255,255,.6); margin-left:4px; letter-spacing:0; }
.dark-card h3 { font-size:16px; font-weight:500; margin-top:14px; }
.dark-card p { font-size:14px; color:rgba(255,255,255,.6); margin-top:6px; line-height:1.6; }

/* ---------------- 首页：功能聚焦（手机外框） ---------------- */
.feature { padding:56px 0; }
.feature:first-of-type { padding-top:112px; }
.feature .row { display:grid; grid-template-columns:1fr 1fr; align-items:center; gap:64px; max-width:960px; margin:0 auto; }
.feature.flip .copy { order:2; }
@media (max-width:820px){ .feature .row { grid-template-columns:1fr; gap:36px; } .feature.flip .copy { order:0; } }
.feature .copy { max-width:420px; }
.feature .copy .pill-tag { margin-bottom:16px; }
.feature .copy h2 { margin-bottom:16px; }
.feature .copy p { font-size:17px; line-height:1.7; color:var(--n-600); }
.feature .shot { display:flex; justify-content:center; }

/* 手机：图里已经是用户导出的真机外框（透明底），网页不再画框、不加阴影——9-19 用户嫌 CSS 画的黑框丑 */
.device { width:min(280px, 72vw); }
.device img { display:block; width:100%; height:auto; }
.device.sm { width:min(230px, 60vw); }

/* ---------------- 首页：回顾类（淡紫渐变底）/ 其他网格 ---------------- */
.band-wash { background:linear-gradient(to bottom, var(--accent-50), var(--paper)); padding:96px 0 88px; }
.band-gray { background:var(--n-50); padding:96px 0; }
.sec-head { text-align:center; max-width:640px; margin:0 auto 44px; }
.sec-head .pill-tag { margin-bottom:16px; }
.sec-head p { margin-top:12px; color:var(--n-600); font-size:17px; }
.grid3 { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; max-width:896px; margin:0 auto; }
@media (max-width:820px){ .grid3 { grid-template-columns:repeat(2,1fr); } }
@media (max-width:540px){ .grid3 { grid-template-columns:1fr; } }
.card { background:var(--paper); border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:24px; }
.card.c { text-align:center; }
.card .ico { width:22px; height:22px; color:var(--n-900); margin-bottom:14px; }
.card.c .ico { margin:0 auto 14px; }
.card h3 { font-size:16px; font-weight:600; letter-spacing:-.01em; }
.card p { font-size:14px; color:var(--n-600); margin-top:6px; line-height:1.6; }
.label-caps { text-align:center; font-size:13px; letter-spacing:.2em; color:var(--n-400); font-weight:500; margin:56px 0 16px; }

/* ---------------- 结尾 CTA ---------------- */
.cta { padding:112px 0; text-align:center; }
.cta h2 { font-size:clamp(28px,3.4vw,36px); font-weight:500; letter-spacing:-.02em; margin-bottom:28px; }
.cta h2 em { font-style:normal; color:var(--accent); }
.cta .note { margin-top:18px; font-size:14px; color:var(--n-500); }

/* ---------------- 页脚（白底五栏） ---------------- */
.site-footer { border-top:1px solid var(--n-200); padding:48px 0 56px; font-size:14px; }
.foot-grid { display:grid; grid-template-columns:1.3fr repeat(4,1fr); gap:32px; max-width:1152px; margin:0 auto; padding:0 24px; }
@media (max-width:900px){ .foot-grid { grid-template-columns:repeat(2,1fr); } .foot-brand { grid-column:1/-1; } }
.foot-brand .brand { font-size:17px; margin-bottom:12px; }
.foot-brand p { color:var(--n-600); line-height:1.6; }
.foot-brand .fine { color:var(--n-500); margin-top:10px; font-size:13px; }
.foot-col h4 { font-size:14px; font-weight:600; margin-bottom:14px; color:var(--n-900); }
.foot-col a { display:block; color:var(--n-700); padding:5px 0; }
.foot-col a:hover { color:var(--n-900); }
.foot-col .appstore { margin-top:12px; }
.foot-col .appstore img { height:40px; }
.foot-legal { max-width:1152px; margin:40px auto 0; padding:20px 24px 0; border-top:1px solid var(--n-200); color:var(--n-500); font-size:12.5px; display:flex; flex-wrap:wrap; gap:6px 18px; }

/* ---------------- 工具页 ---------------- */
.page-head { padding:64px 0 40px; text-align:center; }
.page-head .lede { max-width:620px; margin:16px auto 0; }
.page-head .intro { max-width:640px; margin:28px auto 0; font-size:15px; color:var(--n-600); line-height:1.75; }
.crumbs { font-size:13px; color:var(--n-500); display:flex; gap:8px; justify-content:center; flex-wrap:wrap; margin-bottom:18px; }
.crumbs a:hover { color:var(--n-900); }
.crumbs span[aria-hidden] { color:var(--n-300); }
.tool-group-title { font-size:20px; font-weight:600; margin:8px 0 18px; }
.tool-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
@media (max-width:900px){ .tool-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .tool-grid { grid-template-columns:1fr; } }
.tool-card { display:block; background:var(--accent-50); border:1px solid var(--accent-200); border-radius:var(--radius-lg); padding:22px; transition:transform .15s, box-shadow .15s; }
.tool-card:hover { transform:translateY(-2px); box-shadow:0 10px 24px -14px rgba(60,50,160,.35); }
.tool-card .emo { font-size:24px; line-height:1; margin-bottom:14px; }
.tool-card h3 { font-size:18px; font-weight:600; letter-spacing:-.01em; }
.tool-card p { font-size:14px; color:var(--n-600); margin-top:6px; line-height:1.55; }
.tool-card.plain { background:var(--paper); border-color:var(--n-200); display:flex; gap:14px; align-items:flex-start; }
.tool-card.plain .emo { margin:2px 0 0; font-size:20px; }
.tool-card.plain h3 { font-size:16px; }
.tools-all { background:var(--n-50); padding:56px 0 72px; margin-top:64px; }
.tool-grid.two { grid-template-columns:repeat(2,1fr); }
@media (max-width:640px){ .tool-grid.two { grid-template-columns:1fr; } }

.calc { max-width:576px; margin:0 auto; background:var(--paper); border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:24px; }
.calc h2 { font-size:18px; font-weight:600; margin-bottom:18px; }
.field { margin-bottom:18px; }
.field > .lab { display:flex; justify-content:space-between; align-items:center; font-size:14px; font-weight:500; margin-bottom:8px; color:var(--n-800); }
.field .hint { font-size:12.5px; color:var(--n-500); margin-top:6px; line-height:1.5; }
.seg { display:grid; grid-auto-flow:column; grid-auto-columns:1fr; gap:8px; }
.seg.wrap { grid-auto-flow:row; grid-template-columns:repeat(auto-fill,minmax(120px,1fr)); }
.seg button { height:40px; border-radius:var(--radius); border:0; background:var(--n-100); font-size:14px; font-weight:500; color:var(--n-700); cursor:pointer; padding:0 8px; line-height:1.2; }
.seg button:hover { background:var(--n-200); }
.seg button[aria-pressed="true"] { background:var(--accent); color:#fff; }
.seg.tall button { height:auto; min-height:44px; padding:8px; }
.seg.tall button small { display:block; font-size:11.5px; font-weight:400; opacity:.75; margin-top:2px; }
.inp { position:relative; max-width:260px; }
.inp input, .inp select { width:100%; height:54px; border-radius:var(--radius-sm); border:1px solid var(--n-200); background:var(--n-100); padding:0 64px 0 16px; font-size:18px; }
.inp select { padding-right:16px; appearance:auto; }
.inp input:focus, .inp select:focus { outline:2px solid var(--accent); outline-offset:0; border-color:transparent; background:var(--paper); }
.inp .unit { position:absolute; right:16px; top:50%; transform:translateY(-50%); color:var(--n-500); font-size:14px; pointer-events:none; }
.calc .btn-accent { width:100%; height:48px; margin-top:6px; }
.err { color:#b91c1c; font-size:13px; margin-top:6px; }

.result { margin-top:22px; border-radius:var(--radius-lg); background:var(--accent-50); border:1px solid var(--accent-200); padding:22px; }
.result[hidden] { display:none; }
.result .qa { font-size:12px; letter-spacing:.14em; color:var(--accent-ink); font-weight:600; }
.result .big { font-size:clamp(40px,7vw,56px); font-weight:600; letter-spacing:-.03em; line-height:1.05; margin-top:6px; }
.result .big small { font-size:.36em; font-weight:500; color:var(--n-600); margin-left:6px; letter-spacing:0; }
.result .sub { font-size:14px; color:var(--n-600); margin-top:8px; line-height:1.6; }
.kv { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-top:16px; }
.kv > div { background:var(--paper); border:1px solid var(--n-200); border-radius:var(--radius); padding:12px; }
.kv .k { font-size:12px; color:var(--n-500); }
.kv .v { font-size:20px; font-weight:600; letter-spacing:-.02em; margin-top:2px; }
.kv .v small { font-size:12px; color:var(--n-500); font-weight:400; margin-left:2px; }
.note-box { margin-top:14px; border-radius:var(--radius); padding:12px 14px; font-size:13.5px; line-height:1.6; }
.note-box.warn { background:var(--warn-bg); border:1px solid var(--warn-line); color:var(--warn); }
.note-box.block { background:#fef2f2; border:1px solid #fecaca; color:#b91c1c; }
@media (prefers-color-scheme: dark){ .note-box.block { background:#2a1111; border-color:#7f1d1d; color:#fca5a5; } }
.table-wrap { overflow-x:auto; margin-top:12px; }
table.t { width:100%; border-collapse:collapse; font-size:14px; }
table.t th, table.t td { text-align:left; padding:10px 8px; border-bottom:1px solid var(--n-200); white-space:nowrap; }
table.t th { font-weight:600; color:var(--n-800); }
table.t td { color:var(--n-700); }
table.t tr.hl td { background:var(--accent-50); color:var(--n-900); font-weight:600; }

.tool-below { background:var(--n-50); padding:56px 0; margin-top:56px; }
.panel { max-width:576px; margin:0 auto 20px; background:var(--paper); border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:24px; }
.panel h2 { font-size:18px; font-weight:600; margin-bottom:12px; }
.panel h3 { font-size:14px; font-weight:600; margin:20px 0 10px; }
.panel > p { font-size:14.5px; color:var(--n-600); line-height:1.7; }
.faq details { border-bottom:1px solid var(--n-100); }
.faq summary { cursor:pointer; list-style:none; padding:10px 0; font-weight:500; font-size:15px; display:flex; gap:10px; align-items:baseline; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::before { content:"▶"; font-size:10px; color:var(--n-500); transition:transform .15s; }
.faq details[open] summary::before { transform:rotate(90deg); }
.faq details p { padding:0 0 14px 20px; font-size:14px; color:var(--n-600); line-height:1.7; }
.steps-list { list-style:none; display:grid; gap:14px; margin-top:14px; }
.steps-list li { display:grid; grid-template-columns:28px 1fr; gap:12px; }
.steps-list .n { width:28px; height:28px; border-radius:50%; background:var(--accent); color:#fff; font-size:12px; font-weight:600; display:grid; place-items:center; }
.steps-list b { font-size:15px; font-weight:600; display:block; }
.steps-list span { font-size:14px; color:var(--n-600); line-height:1.6; }
.link-chips { display:flex; flex-wrap:wrap; gap:8px; }
.link-chips a { padding:6px 12px; border-radius:var(--radius-sm); background:var(--n-100); font-size:13.5px; color:var(--n-700); }
.link-chips a:hover { background:var(--n-200); color:var(--n-900); }

/* ---------------- 人群页 ---------------- */
.for-hero { padding:80px 0 64px; text-align:center; }
.for-hero .hero-icon { width:88px; height:88px; }
.for-hero h1 { font-size:clamp(34px,5vw,52px); font-weight:500; letter-spacing:-.025em; line-height:1.1; }
.for-hero .lede { max-width:560px; margin:18px auto 0; }
.for-hero .rating { margin-top:18px; }
.for-hero .appstore { margin-top:22px; }
.prose-band { background:var(--n-50); padding:56px 0; }
.prose-band p { max-width:720px; margin:0 auto; font-size:17px; line-height:1.85; color:var(--n-700); }
.pain { max-width:576px; margin:56px auto; background:var(--n-50); border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:24px; }
.pain h2 { font-size:20px; font-weight:600; margin-bottom:14px; }
.pain li { list-style:none; display:grid; grid-template-columns:20px 1fr; gap:8px; font-size:15px; color:var(--n-700); padding:6px 0; line-height:1.6; }
.pain li::before { content:"✓"; color:var(--accent); font-weight:700; }
.shots-row { display:flex; gap:28px; justify-content:center; flex-wrap:wrap; }

/* ---------------- 文档（Mintlify 式三栏） ---------------- */
.docs-top { position:sticky; top:0; z-index:50; background:color-mix(in srgb, var(--paper) 90%, transparent); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); border-bottom:1px solid var(--n-200); }
.docs-top .bar { height:64px; display:flex; align-items:center; gap:20px; padding:0 24px; max-width:1440px; margin:0 auto; }
.docs-search { flex:1; max-width:420px; margin:0 auto; position:relative; }
.docs-search input { width:100%; height:38px; border-radius:999px; border:1px solid var(--n-200); background:var(--n-50); padding:0 64px 0 38px; font-size:14px; }
.docs-search svg { position:absolute; left:13px; top:50%; transform:translateY(-50%); width:15px; height:15px; color:var(--n-400); }
.docs-search kbd { position:absolute; right:12px; top:50%; transform:translateY(-50%); font-size:11px; color:var(--n-500); border:1px solid var(--n-200); border-radius:6px; padding:1px 6px; font-family:var(--font); background:var(--paper); }
.docs-results { position:absolute; left:0; right:0; top:44px; background:var(--paper); border:1px solid var(--n-200); border-radius:var(--radius); box-shadow:0 18px 40px -18px rgba(0,0,0,.3); padding:6px; max-height:360px; overflow:auto; }
.docs-results a { display:block; padding:8px 10px; border-radius:8px; font-size:14px; }
.docs-results a small { display:block; color:var(--n-500); font-size:12px; }
.docs-results a:hover, .docs-results a.on { background:var(--accent-50); }
.docs-top .right { display:flex; align-items:center; gap:18px; font-size:14px; color:var(--n-600); }
.btn-accent-sm { display:inline-flex; align-items:center; gap:4px; height:34px; padding:0 14px; border-radius:999px; background:var(--accent); color:#fff; font-size:14px; font-weight:500; }
.docs-tabs { max-width:1440px; margin:0 auto; padding:0 24px; height:44px; display:flex; align-items:flex-end; gap:24px; font-size:14px; }
.docs-tabs a { padding-bottom:10px; border-bottom:2px solid transparent; color:var(--n-600); }
.docs-tabs a.on { border-color:var(--accent); color:var(--n-900); font-weight:600; }
.docs-shell { display:grid; grid-template-columns:260px minmax(0,1fr) 220px; gap:40px; max-width:1440px; margin:0 auto; padding:0 24px; }
@media (max-width:1180px){ .docs-shell { grid-template-columns:240px minmax(0,1fr); } .docs-toc { display:none; } }
@media (max-width:820px){ .docs-shell { grid-template-columns:1fr; } .docs-side { display:none; } .docs-side.open { display:block; } .docs-menu-btn { display:inline-flex !important; } }
.docs-side { position:sticky; top:108px; align-self:start; max-height:calc(100vh - 120px); overflow:auto; padding:24px 0 40px; font-size:14px; }
.docs-side .grp { font-size:13px; font-weight:600; color:var(--n-900); margin:22px 0 6px 10px; }
.docs-side a { display:flex; align-items:center; gap:10px; padding:6px 10px; border-radius:8px; color:var(--n-600); }
.docs-side a:hover { color:var(--n-900); background:var(--n-50); }
.docs-side a.on { background:var(--accent-50); color:var(--accent-ink); font-weight:500; }
.docs-side .ext svg { width:16px; height:16px; color:var(--n-400); }
.docs-main { padding:36px 0 80px; max-width:720px; }
.docs-main .kicker { font-size:14px; font-weight:500; color:var(--accent-ink); }
.docs-main h1 { font-size:32px; font-weight:600; letter-spacing:-.02em; margin-top:6px; line-height:1.2; }
.docs-main .desc { font-size:17px; color:var(--n-600); margin-top:8px; }
.docs-title-row { display:flex; align-items:flex-start; justify-content:space-between; gap:16px; }
.copy-btn { flex:none; display:inline-flex; align-items:center; gap:6px; height:32px; padding:0 12px; border-radius:8px; border:1px solid var(--n-200); background:var(--paper); font-size:13px; color:var(--n-700); cursor:pointer; margin-top:10px; }
.copy-btn svg { width:14px; height:14px; }
.prose { margin-top:28px; font-size:15.5px; line-height:1.8; color:var(--n-700); }
.prose h2 { font-size:22px; font-weight:600; color:var(--n-900); margin:40px 0 12px; letter-spacing:-.01em; scroll-margin-top:120px; }
.prose h3 { font-size:17px; font-weight:600; color:var(--n-900); margin:28px 0 8px; scroll-margin-top:120px; }
.prose p { margin:12px 0; }
.prose ul, .prose ol { margin:12px 0 12px 22px; }
.prose li { margin:6px 0; }
.prose b, .prose strong { color:var(--n-900); font-weight:600; }
.prose a { color:var(--accent-ink); text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:1px; }
.prose .member { font-style:normal; font-size:12.5px; color:var(--accent-ink); background:var(--accent-50); border:1px solid var(--accent-200); border-radius:999px; padding:1px 8px; margin-left:6px; white-space:nowrap; }
.callout { display:grid; grid-template-columns:20px 1fr; gap:10px; border-radius:var(--radius); padding:14px 16px; margin:18px 0; font-size:14.5px; line-height:1.7; }
.callout svg { width:18px; height:18px; margin-top:3px; }
.callout.info { background:var(--info-bg); border:1px solid var(--info-line); color:var(--info); }
.callout.tip { background:var(--ok-bg); border:1px solid var(--ok-line); color:var(--ok); }
.callout.warn { background:var(--warn-bg); border:1px solid var(--warn-line); color:var(--warn); }
.callout b { color:inherit; }
.frame { margin:22px 0; border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:8px; background:var(--n-50); }
.frame .stage { border-radius:12px; background:linear-gradient(160deg, var(--accent-100), var(--accent-50) 60%, var(--paper)); padding:36px 0; display:flex; justify-content:center; }
.frame figcaption { text-align:center; font-size:13px; color:var(--n-500); padding:10px 8px 4px; }
.doc-cards { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin:18px 0; }
.doc-cards.three { grid-template-columns:repeat(3,1fr); }
@media (max-width:760px){ .doc-cards, .doc-cards.three { grid-template-columns:1fr; } }
.doc-card { display:block; border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:18px; transition:border-color .15s; text-decoration:none !important; }
.doc-card:hover { border-color:var(--accent-200); }
.doc-card svg { width:22px; height:22px; color:var(--accent); margin-bottom:12px; }
.doc-card b { display:block; font-size:15.5px; color:var(--n-900); }
.doc-card span { display:block; font-size:14px; color:var(--n-600); margin-top:4px; line-height:1.55; }
.pager { display:flex; justify-content:space-between; gap:12px; margin-top:56px; padding-top:24px; border-top:1px solid var(--n-200); font-size:14px; }
.pager a { color:var(--n-700); display:flex; flex-direction:column; gap:2px; }
.pager a small { color:var(--n-500); font-size:12px; }
.pager a:hover { color:var(--accent-ink); }
.pager .next { text-align:right; margin-left:auto; }
.docs-toc { position:sticky; top:108px; align-self:start; padding:36px 0; font-size:13.5px; }
.docs-toc .t { display:flex; align-items:center; gap:6px; font-weight:500; color:var(--n-900); margin-bottom:10px; }
.docs-toc .t svg { width:14px; height:14px; }
.docs-toc a { display:block; padding:5px 0; color:var(--n-500); }
.docs-toc a.sub { padding-left:12px; }
.docs-toc a.on { color:var(--accent-ink); font-weight:500; }
.docs-foot { border-top:1px solid var(--n-200); margin-top:40px; padding-top:20px; display:flex; justify-content:space-between; font-size:13px; color:var(--n-500); }
@media (max-width:820px){
  .docs-top .bar { gap:10px; padding:0 14px; }
  .docs-top .brand span, .docs-top .hide-sm, .docs-search kbd { display:none; }
  .docs-top .brand { font-size:0; gap:0; }
  .docs-search { min-width:0; margin:0; }
  .docs-search input { padding-right:12px; }
  .docs-tabs { padding:0 14px; }
  .docs-shell { padding:0 18px; }
  .docs-side.open { position:static; max-height:none; border-bottom:1px solid var(--n-200); margin-bottom:8px; }
}
.docs-menu-btn, .btn-accent-sm { white-space:nowrap; flex:none; }
.docs-menu-btn { display:none; align-items:center; gap:6px; font-size:14px; color:var(--n-700); background:none; border:1px solid var(--n-200); border-radius:8px; height:34px; padding:0 10px; cursor:pointer; }

/* ---------------- 关于 / 媒体 ---------------- */
.narrow-page { max-width:896px; margin:0 auto; padding:64px 24px 24px; }
.narrow-page h1 { font-size:clamp(32px,4vw,40px); font-weight:500; letter-spacing:-.02em; }
.narrow-page .lede { margin-top:10px; }
.narrow-page h2 { font-size:20px; font-weight:600; margin:44px 0 14px; }
.narrow-page p { font-size:16px; color:var(--n-700); line-height:1.8; margin:12px 0; }
.stat3 { display:grid; grid-template-columns:repeat(3,1fr); border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:28px 12px; margin:48px 0; text-align:center; }
@media (max-width:560px){ .stat3 { grid-template-columns:1fr; gap:18px; } }
.stat3 .k { font-size:34px; font-weight:500; letter-spacing:-.03em; }
.stat3 .c { font-size:14px; color:var(--n-500); margin-top:2px; }
.facts { list-style:none; border-top:1px solid var(--n-200); }
.facts li { display:grid; grid-template-columns:150px 1fr; gap:16px; padding:12px 0; border-bottom:1px solid var(--n-200); font-size:14.5px; }
.facts li span:first-child { color:var(--n-500); }
@media (max-width:560px){ .facts li { grid-template-columns:1fr; gap:2px; } }
.kit { display:flex; justify-content:space-between; align-items:center; gap:18px; border:1px solid var(--n-200); border-radius:var(--radius-lg); padding:22px 24px; margin:18px 0; flex-wrap:wrap; }
.kit h3 { font-size:18px; font-weight:600; }
.kit p { margin:4px 0 0; font-size:14px; color:var(--n-600); }
.swatches { display:flex; gap:12px; flex-wrap:wrap; margin-top:14px; }
.swatch { width:120px; border:1px solid var(--n-200); border-radius:var(--radius); overflow:hidden; font-size:12.5px; }
.swatch i { display:block; height:56px; }
.swatch div { padding:8px 10px; color:var(--n-700); }
.swatch code { color:var(--n-500); font-size:12px; }

/* ---------------- 入场（JS 起得来才藏） ---------------- */
.js .reveal { opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1); }
.js .reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ html { scroll-behavior:auto; } .js .reveal { opacity:1; transform:none; transition:none; } }