/* ==========================================================================
   Quay · 官网样式
   设计语言取自 Quay 启动页：深色底 + 主题色可切换 + 浏览器式标签 / 玻璃面
   全部手写，无第三方库、无外链字体。
   ========================================================================== */

/* ---------- 令牌 ---------- */
:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;

  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  --bg: #0a0c10;
  --bg-2: #0e1218;
  --surface: #12161d;
  --surface-2: #171c25;
  --surface-3: #1d2431;
  --border: #232a36;
  --border-2: #313a4a;
  --text: #eef1f6;
  --text-2: #a3adbd;
  --text-3: #6d7787;
  --text-inv: #0a0c10;

  --accent: #1a56db;
  --accent-2: color-mix(in srgb, var(--accent) 62%, #ffffff);
  --accent-soft: color-mix(in srgb, var(--accent) 16%, transparent);
  --accent-line: color-mix(in srgb, var(--accent) 42%, transparent);

  --ok: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 18px 40px -22px rgba(0, 0, 0, .9);
  --shadow-lg: 0 40px 90px -40px rgba(0, 0, 0, .95);

  --maxw: 1180px;
}

:root[data-accent="blue"]   { --accent: #1a56db; }
:root[data-accent="purple"] { --accent: #7c3aed; }
:root[data-accent="green"]  { --accent: #0f9d58; }
:root[data-accent="orange"] { --accent: #ea7317; }
:root[data-accent="red"]    { --accent: #d9382c; }

:root[data-theme="light"] {
  --bg: #f7f8fb;
  --bg-2: #ffffff;
  --surface: #ffffff;
  --surface-2: #f4f6fa;
  --surface-3: #eceff5;
  --border: #e3e7ef;
  --border-2: #d3d9e4;
  --text: #14181f;
  --text-2: #4c5668;
  --text-3: #8a94a6;
  --text-inv: #ffffff;
  --accent-2: color-mix(in srgb, var(--accent) 88%, #000000);
  --accent-soft: color-mix(in srgb, var(--accent) 10%, transparent);
  --accent-line: color-mix(in srgb, var(--accent) 30%, transparent);
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);
  --shadow-md: 0 18px 40px -26px rgba(16, 24, 40, .35);
  --shadow-lg: 0 40px 90px -44px rgba(16, 24, 40, .45);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

h1, h2, h3, h4 { margin: 0; line-height: 1.12; letter-spacing: -.022em; font-weight: 700; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }

code, .mono { font-family: var(--mono); }

/* 背景：细网格 + 顶部光晕 */
.bg-fx {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 520px at 78% -8%, var(--accent-soft), transparent 70%),
    radial-gradient(700px 460px at 6% 4%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 72%),
    var(--bg);
}
.bg-fx::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--text) 4%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--text) 4%, transparent) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
  opacity: .5;
}
.noise {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: min(100% - 48px, var(--maxw)); margin-inline: auto; }
.wrap-narrow { width: min(100% - 48px, 820px); margin-inline: auto; }

/* ---------- 顶部导航 ---------- */
.hd {
  position: sticky; top: 0; z-index: 60;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s;
}
.hd.stuck {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--border);
}
.hd-in {
  display: flex; align-items: center; gap: 22px;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: 0 8px 22px -10px color-mix(in srgb, var(--accent) 90%, transparent);
  letter-spacing: -.02em;
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.1; }
.brand-txt b { font-size: 15px; letter-spacing: -.01em; }
.brand-txt span { font-family: var(--mono); font-size: 9.5px; letter-spacing: .18em; color: var(--text-3); text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: 10px; }
.nav a {
  position: relative; padding: 8px 13px; border-radius: 9px; font-size: 14px; color: var(--text-2);
  transition: color .2s, background .2s;
}
.nav a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }
.nav a[aria-current="page"] { color: var(--text); }
.nav a[aria-current="page"]::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 3px; height: 2px;
  background: var(--accent); border-radius: 2px;
}

.hd-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.accents { display: flex; gap: 6px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 999px; background: color-mix(in srgb, var(--surface) 70%, transparent); }
.accents button {
  width: 11px; height: 11px; border-radius: 50%; border: 0; padding: 0; cursor: pointer;
  background: var(--c); opacity: .55; transition: opacity .2s, transform .2s;
}
.accents button:hover { opacity: 1; transform: scale(1.15); }
.accents button[aria-pressed="true"] { opacity: 1; box-shadow: 0 0 0 2px var(--bg), 0 0 0 3.5px var(--c); }

.icon-btn {
  width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px;
  border: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 70%, transparent);
  cursor: pointer; transition: border-color .2s, background .2s, color .2s;
}
.icon-btn:hover { border-color: var(--border-2); color: var(--accent-2); }
.icon-btn svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px; justify-content: center;
  height: 44px; padding: 0 20px; border-radius: 12px; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .2s var(--ease-out), background .2s, border-color .2s, box-shadow .3s;
  will-change: transform;
}
.btn svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 12px 30px -14px color-mix(in srgb, var(--accent) 95%, transparent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -16px color-mix(in srgb, var(--accent) 95%, transparent); }
.btn-ghost {
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  border-color: var(--border); color: var(--text);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--border-2); transform: translateY(-2px); }
.btn-sm { height: 38px; padding: 0 15px; font-size: 13px; border-radius: 10px; }

/* ---------- 通用段落 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent-2);
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: var(--accent-line); }

.sec { padding: 22px 0; }
.sec-h { display: flex; align-items: end; justify-content: space-between; gap: 32px; flex-wrap: wrap; margin-bottom: 34px; }
.sec-h h2 { font-size: clamp(26px, 3.4vw, 40px); }
.sec-h p { max-width: 460px; color: var(--text-2); font-size: 15px; }

.hr { height: 1px; background: var(--border); border: 0; margin: 0; }

/* ---------- Hero ---------- */
.hero { padding: 62px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 6px 12px 6px 8px;
  border: 1px solid var(--border); border-radius: 999px; background: color-mix(in srgb, var(--surface) 70%, transparent);
  font-size: 12.5px; color: var(--text-2);
}
.hero-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent); }
.hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(38px, 5.6vw, 68px);
  font-weight: 800; letter-spacing: -.035em; line-height: 1.06;
}
.hero h1 em {
  font-style: normal; color: var(--accent-2);
  position: relative; white-space: nowrap;
}
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .06em; height: .09em;
  background: var(--accent); opacity: .5; border-radius: 2px; z-index: -1;
}
.hero-lead { max-width: 520px; color: var(--text-2); font-size: 16px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 22px; }
.hero-meta { display: flex; gap: 18px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.hero-meta li { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--text-3); }
.hero-meta li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); opacity: .7; }

/* 浏览器式 Mock */
.mock {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}
.mock::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(150deg, color-mix(in srgb, #fff 6%, transparent), transparent 38%);
}
.mock-bar { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-2) 80%, transparent); }
.mock-dots { display: flex; gap: 6px; }
.mock-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--border-2); }
.mock-dots i:first-child { background: color-mix(in srgb, var(--danger) 72%, transparent); }
.mock-dots i:nth-child(2) { background: color-mix(in srgb, var(--warn) 72%, transparent); }
.mock-dots i:nth-child(3) { background: color-mix(in srgb, var(--ok) 68%, transparent); }
.mock-tabs { display: flex; gap: 4px; margin-left: 6px; }
.mock-tab { font-size: 11.5px; color: var(--text-3); padding: 4px 10px; border-radius: 7px; }
.mock-tab.on { background: var(--surface-3); color: var(--text); }
.mock-body { padding: 26px 22px 22px; }

.mock-logo { display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.mock-logo b {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-size: 21px; font-weight: 800;
  box-shadow: 0 10px 26px -12px color-mix(in srgb, var(--accent) 95%, transparent);
}
.mock-search {
  display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 16px;
  border: 1px solid var(--border-2); border-radius: 999px; background: var(--bg);
  box-shadow: var(--shadow-sm);
}
.mock-search svg { width: 16px; height: 16px; stroke: var(--text-3); fill: none; stroke-width: 2; flex: none; }
.mock-search .q { font-size: 13.5px; color: var(--text); white-space: nowrap; overflow: hidden; }
.mock-search .caret { width: 1.5px; height: 15px; background: var(--accent); animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.mock-engines { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0 16px; }
.mock-engines span {
  font-size: 11px; padding: 4px 10px; border-radius: 999px; color: var(--text-3);
  border: 1px solid var(--border);
}
.mock-engines span.on { color: #fff; background: var(--accent); border-color: transparent; }

.mock-rows { display: grid; gap: 6px; }
.mock-row {
  display: flex; align-items: center; gap: 11px; padding: 9px 11px; border-radius: 10px;
  border: 1px solid transparent; transition: background .2s, border-color .2s;
}
.mock-row:hover { background: var(--surface-2); border-color: var(--border); }
.mock-row .ic { width: 26px; height: 26px; border-radius: 7px; background: var(--accent-soft); flex: none; display: grid; place-items: center; }
.mock-row .ic::before { content: ""; width: 11px; height: 13px; border: 1.6px solid var(--accent-2); border-radius: 2px; }
.mock-row b { display: block; font-size: 12.5px; font-weight: 600; }
.mock-row small { display: block; font-size: 10.5px; color: var(--text-3); font-family: var(--mono); }
.mock-row .ms { margin-left: auto; font-family: var(--mono); font-size: 10.5px; color: var(--ok); }

/* 悬浮小卡 */
.float-card {
  position: absolute; right: -14px; bottom: 54px; z-index: 3;
  display: flex; align-items: center; gap: 10px; padding: 11px 14px;
  border-radius: 13px; border: 1px solid var(--border); background: color-mix(in srgb, var(--surface-2) 92%, transparent);
  box-shadow: var(--shadow-md); backdrop-filter: blur(10px);
  animation: bob 5.5s ease-in-out infinite;
}
@keyframes bob { 50% { transform: translateY(-9px); } }
.float-card .fd { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.float-card small { font-size: 10.5px; color: var(--text-3); font-family: var(--mono); }
.float-card b { font-size: 12.5px; }

/* ---------- 统计条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-top: 12px; }
.stat { background: color-mix(in srgb, var(--surface) 88%, transparent); padding: 22px 20px; }
.stat b { display: block; font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.03em; }
.stat b i { font-style: normal; font-size: .55em; color: var(--accent-2); margin-left: 2px; }
.stat span { font-size: 12px; color: var(--text-3); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.card {
  position: relative; padding: 26px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 86%, transparent);
  transition: transform .35s var(--ease-out), border-color .3s, background .3s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(420px 220px at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 70%);
  transition: opacity .35s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-2); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { font-size: 13.5px; color: var(--text-2); }
.card .kicker { font-family: var(--mono); font-size: 10.5px; letter-spacing: .18em; color: var(--text-3); text-transform: uppercase; margin-bottom: 14px; }

.i-box { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; margin-bottom: 16px; background: var(--accent-soft); border: 1px solid var(--accent-line); }
.i-box svg { width: 19px; height: 19px; stroke: var(--accent-2); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.span-3 { grid-column: span 3; }
.span-2 { grid-column: span 2; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }

/* ---------- 工作流 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.flow-step { padding: 26px 22px; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 84%, transparent); position: relative; }
.flow-step:last-child { border-right: 0; }
.flow-step .n { font-family: var(--mono); font-size: 11px; color: var(--accent-2); letter-spacing: .12em; }
.flow-step h4 { font-size: 15px; margin: 12px 0 6px; }
.flow-step p { font-size: 12.5px; color: var(--text-3); }

/* ---------- 引擎滚动带 ---------- */
.marquee { overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 15px 0; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-in { display: flex; gap: 44px; width: max-content; animation: slide 32s linear infinite; }
.marquee:hover .marquee-in { animation-play-state: paused; }
.marquee span { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--text-3); white-space: nowrap; }
.marquee span b { color: var(--accent-2); font-weight: 600; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background:
    radial-gradient(700px 300px at 15% 0%, var(--accent-soft), transparent 70%),
    color-mix(in srgb, var(--surface) 90%, transparent);
  padding: 54px; text-align: center;
}
.cta h2 { font-size: clamp(26px, 3.6vw, 40px); }
.cta p { color: var(--text-2); margin: 14px auto 26px; max-width: 520px; }
.cta .btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- 页头（内页） ---------- */
.page-hd { padding: 54px 0 30px; }
.page-hd h1 { font-size: clamp(32px, 4.8vw, 54px); font-weight: 800; letter-spacing: -.035em; margin: 16px 0 14px; }
.page-hd p { max-width: 620px; color: var(--text-2); font-size: 15.5px; }

/* ---------- 功能页：交替行 ---------- */
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; padding: 44px 0; border-top: 1px solid var(--border); }
.row:first-of-type { border-top: 0; }
.row.rev .visual { order: 2; }
.row h3 { font-size: clamp(20px, 2.4vw, 27px); margin-bottom: 12px; }
.row p { color: var(--text-2); font-size: 14.5px; }
.row ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.row li { display: flex; gap: 10px; font-size: 13.5px; color: var(--text-2); }
.row li::before { content: ""; width: 15px; height: 15px; flex: none; margin-top: 3px; border-radius: 50%; background: var(--accent-soft); border: 1px solid var(--accent-line); }
.visual {
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden;
  background: color-mix(in srgb, var(--surface) 88%, transparent); box-shadow: var(--shadow-md);
}
.visual-bar { display: flex; align-items: center; gap: 8px; padding: 10px 13px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-2) 76%, transparent); }
.visual-bar span { font-family: var(--mono); font-size: 10.5px; color: var(--text-3); }
.visual-body { padding: 20px; }

/* 结果列表 */
.res { display: grid; gap: 7px; }
.res-i { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 9px; border: 1px solid transparent; }
.res-i.on { background: var(--surface-2); border-color: var(--border); }
.res-i .f { width: 24px; height: 24px; border-radius: 6px; background: var(--accent-soft); flex: none; }
.res-i b { font-size: 12px; font-weight: 600; }
.res-i small { font-size: 10px; color: var(--text-3); font-family: var(--mono); }

/* 标签 / 徽标 */
.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px;
  font-size: 11.5px; font-weight: 600; background: var(--accent-soft); color: var(--accent-2);
  border: 1px solid var(--accent-line);
}
.tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; color: var(--text-3); text-transform: uppercase; }

/* ---------- 下载页 ---------- */
.dl-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: start; }
.dl-card {
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}
.dl-card.primary { border-color: var(--accent-line); box-shadow: 0 0 0 1px var(--accent-line), var(--shadow-md); }
.dl-card h3 { font-size: 20px; display: flex; align-items: center; gap: 10px; }
.dl-meta { display: flex; gap: 18px; flex-wrap: wrap; margin: 18px 0 22px; }
.dl-meta div { font-size: 12px; color: var(--text-3); }
.dl-meta b { display: block; font-size: 14px; color: var(--text); font-family: var(--mono); }
.dl-note { font-size: 12.5px; color: var(--text-3); margin-top: 14px; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 18px; }
.steps li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; counter-increment: s; }
.steps li::before {
  content: counter(s, decimal-leading-zero); font-family: var(--mono); font-size: 12px;
  color: var(--accent-2); width: 30px; height: 30px; display: grid; place-items: center;
  border: 1px solid var(--accent-line); border-radius: 9px; background: var(--accent-soft);
}
.steps li b { display: block; font-size: 14px; }
.steps li span { font-size: 13px; color: var(--text-3); }

.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, .table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.table th { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); font-weight: 500; }
.table td:first-child { color: var(--text); }
.table td { color: var(--text-2); }

pre.code {
  margin: 0; padding: 18px; border-radius: var(--radius); overflow-x: auto;
  border: 1px solid var(--border); background: var(--bg-2);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.75; color: var(--text-2);
}
pre.code .c { color: var(--text-3); }
pre.code .k { color: var(--accent-2); }

/* ---------- 项目页 ---------- */
.proj-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.proj {
  display: block; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  transition: transform .3s var(--ease-out), border-color .3s;
}
.proj:hover { transform: translateY(-4px); border-color: var(--border-2); }
.proj-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.proj-ic { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); border: 1px solid var(--accent-line); }
.proj-ic svg { width: 19px; height: 19px; stroke: var(--accent-2); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.proj h3 { font-size: 17px; margin-bottom: 8px; }
.proj p { font-size: 13px; color: var(--text-2); }
.proj .go { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 12.5px; color: var(--accent-2); font-family: var(--mono); }
.proj .go::after { content: "→"; transition: transform .2s; }
.proj:hover .go::after { transform: translateX(4px); }

/* ---------- 页脚 ---------- */
.ft { border-top: 1px solid var(--border); margin-top: 60px; padding: 40px 0 34px; }
.ft-in { display: flex; align-items: start; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.ft-brand b { font-size: 15px; }
.ft-brand p { font-size: 12.5px; color: var(--text-3); margin-top: 6px; max-width: 300px; }
.ft-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.ft-col h5 { margin: 0 0 10px; font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); font-weight: 500; }
.ft-col a { display: block; font-size: 13px; color: var(--text-2); padding: 3px 0; transition: color .2s; }
.ft-col a:hover { color: var(--accent-2); }
.ft-btm { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--text-3); font-family: var(--mono); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .06s; }
.reveal[data-d="2"] { transition-delay: .12s; }
.reveal[data-d="3"] { transition-delay: .18s; }
.reveal[data-d="4"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-top: 40px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .bento { grid-template-columns: repeat(4, 1fr); }
  .span-3, .span-4, .span-6 { grid-column: span 4; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow-step:nth-child(2) { border-right: 0; }
  .flow-step:nth-child(1), .flow-step:nth-child(2) { border-bottom: 1px solid var(--border); }
  .row { grid-template-columns: 1fr; gap: 28px; }
  .row.rev .visual { order: 0; }
  .dl-grid { grid-template-columns: 1fr; }
  .proj-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .accents { display: none; }
  .wrap, .wrap-narrow { width: min(100% - 32px, var(--maxw)); }
  .hero h1 { font-size: clamp(32px, 9vw, 44px); }
  .stats { grid-template-columns: 1fr 1fr; }
  .bento { grid-template-columns: 1fr; }
  .span-2, .span-3, .span-4, .span-6 { grid-column: span 1; }
  .flow { grid-template-columns: 1fr; }
  .flow-step { border-right: 0; border-bottom: 1px solid var(--border); }
  .float-card { display: none; }
  .cta { padding: 34px 22px; }
  .ft-in { flex-direction: column; }
  .ft-cols { gap: 32px; }
}

/* ---------- 移动端菜单 ---------- */
.menu-btn { display: none; }
@media (max-width: 720px) {
  .menu-btn { display: grid; }
  .nav {
    position: fixed; inset: 76px 16px auto; display: none; flex-direction: column;
    align-items: stretch; gap: 2px; padding: 10px;
    border: 1px solid var(--border); border-radius: 16px;
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    backdrop-filter: blur(18px); box-shadow: var(--shadow-lg); z-index: 70;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; font-size: 15px; }
  .nav a[aria-current="page"]::after { display: none; }
  .nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-2); }
}