/* ============================================================
   InhoDrama 官网样式 — 深色品牌风（橙→品红渐变）
   ============================================================ */
:root {
  --bg: #0b0b10;
  --bg-soft: #101017;
  --surface: rgba(255, 255, 255, .04);
  --surface-hover: rgba(255, 255, 255, .07);
  --line: rgba(255, 255, 255, .09);
  --line-soft: rgba(255, 255, 255, .06);
  --text: #f2f2f6;
  --text-sub: #a6a6b4;
  --text-dim: #74747f;
  --orange: #ff8a3c;
  --pink: #ee2b6c;
  --grad: linear-gradient(135deg, #ff8a3c, #ee2b6c);
  --glow: 0 10px 40px rgba(238, 43, 108, .35);
  --radius: 16px;
  --nav-h: 64px;
  --font: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI",
          "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "Cascadia Code", Consolas, "JetBrains Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
section[id], main[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

::selection { background: rgba(238, 43, 108, .45); }

/* 细滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-thumb { background: #2a2a35; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a48; }

/* ---------------- 渐变文字 ---------------- */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; line-height: 1;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 48px rgba(238, 43, 108, .5); }
.btn-outline {
  background: var(--surface); color: var(--text);
  border-color: var(--line);
}
.btn-outline:hover { background: var(--surface-hover); border-color: rgba(255, 255, 255, .2); transform: translateY(-2px); }
.btn-ghost {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line);
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero-cta.center { justify-content: center; }

/* ---------------- 顶部导航 ---------------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(11, 11, 16, .55);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease;
}
.nav.scrolled { background: rgba(11, 11, 16, .82); border-bottom-color: var(--line-soft); }
.nav-inner {
  max-width: 1140px; margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo { border-radius: 8px; box-shadow: 0 2px 12px rgba(238, 43, 108, .35); }
.brand-name { font-size: 19px; font-weight: 700; letter-spacing: .2px; }
.brand-name b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links > a:not(.btn) {
  font-size: 14.5px; color: var(--text-sub); font-weight: 500;
  transition: color .2s ease; position: relative;
}
.nav-links > a:not(.btn):hover { color: var(--text); }
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav-burger span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ---------------- 语言切换 ---------------- */
.lang-switch {
  display: inline-flex; align-items: center; flex: none;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: 3px; gap: 2px;
}
.lang-switch a {
  font-size: 12.5px; font-weight: 600; color: var(--text-sub);
  padding: 5px 11px; border-radius: 999px; line-height: 1;
  transition: color .2s ease, background .2s ease;
}
.lang-switch a:hover { color: var(--text); }
.lang-switch a.on { background: var(--grad); color: #fff; }

/* ---------------- Hero ---------------- */
.hero { position: relative; padding: calc(var(--nav-h) + 72px) 0 40px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.glow { position: absolute; border-radius: 50%; filter: blur(90px); }
.glow-1 {
  width: 560px; height: 560px; top: -180px; right: -80px;
  background: radial-gradient(circle, rgba(238, 43, 108, .28), transparent 65%);
}
.glow-2 {
  width: 460px; height: 460px; bottom: -120px; left: -140px;
  background: radial-gradient(circle, rgba(255, 138, 60, .16), transparent 65%);
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
}
.hero-inner {
  position: relative;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center;
}
.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; color: var(--text-sub);
  padding: 6px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
}
.badge-grad {
  color: #fff; font-weight: 600; border: 0;
  background: var(--grad);
  box-shadow: 0 4px 18px rgba(238, 43, 108, .35);
}
.hero h1 {
  font-size: clamp(40px, 5.6vw, 64px);
  line-height: 1.14; font-weight: 800; letter-spacing: -1px;
}
.hero-sub {
  margin-top: 22px; max-width: 560px;
  font-size: 17px; color: var(--text-sub);
}
.hero-sub b { color: var(--text); font-weight: 600; }
.cmd-chip {
  margin-top: 30px;
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 10px 12px 18px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line); border-radius: 12px;
  font-family: var(--mono); font-size: 14px;
}
.cmd-prompt { color: var(--orange); font-weight: 700; }
.cmd-chip code { color: #e8e8ef; }
.copy-btn {
  margin-left: auto;
  background: rgba(255, 255, 255, .08); color: var(--text-sub);
  border: 1px solid var(--line); border-radius: 8px;
  font-size: 12.5px; padding: 6px 12px; cursor: pointer;
  font-family: var(--font); font-weight: 500;
  transition: .2s;
}
.copy-btn:hover { color: #fff; background: rgba(238, 43, 108, .5); border-color: transparent; }
.copy-btn.done { color: #5bdb8b; background: rgba(91, 219, 139, .12); border-color: transparent; }
.hero-meta {
  display: flex; gap: 10px 22px; flex-wrap: wrap; list-style: none;
  margin-top: 26px; font-size: 13.5px; color: var(--text-dim);
}
.hero-meta li { display: flex; align-items: center; gap: 7px; }
.hero-meta li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--grad); flex: none;
}

/* Hero 手机视觉 */
.hero-visual { position: relative; display: flex; justify-content: center; min-height: 560px; align-items: center; }
.hero-glow {
  position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(238, 43, 108, .32), rgba(255, 138, 60, .12) 55%, transparent 70%);
  filter: blur(50px);
}
.phone {
  width: 272px; border-radius: 34px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .65), 0 0 0 1px rgba(255, 255, 255, .07);
  animation: float 6s ease-in-out infinite;
}
.phone-back {
  position: absolute; right: 6%; top: 6%;
  width: 232px; transform: rotate(9deg); opacity: .82;
  animation-delay: -3s;
}
.phone-front { position: relative; z-index: 2; transform: rotate(-4deg); }
@keyframes float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -14px; }
}
@media (prefers-reduced-motion: reduce) {
  .phone { animation: none; }
  html { scroll-behavior: auto; }
}

/* Hero 数据条 */
.hero-stats {
  position: relative; margin-top: 64px;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
  border-top: 1px solid var(--line-soft); padding-top: 34px;
}
.stat { text-align: center; }
.stat b {
  font-size: 38px; font-weight: 800; line-height: 1.1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { display: block; margin-top: 4px; font-size: 13.5px; color: var(--text-dim); }

/* ---------------- 区块通用 ---------------- */
.section { padding: 108px 0; position: relative; }
.section-alt {
  background:
    radial-gradient(ellipse 60% 50% at 80% 0%, rgba(238, 43, 108, .07), transparent),
    var(--bg-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.sec-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.sec-tag {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--orange); margin-bottom: 14px;
  padding: 5px 14px; border-radius: 999px;
  background: rgba(255, 138, 60, .1); border: 1px solid rgba(255, 138, 60, .25);
}
.sec-head h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; letter-spacing: -.5px; }
.sec-head p { margin-top: 12px; color: var(--text-sub); font-size: 16px; }

/* ---------------- 特性卡片 ---------------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px 26px;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(238, 43, 108, .1), transparent 60%);
  opacity: 0; transition: opacity .3s ease; pointer-events: none;
}
.card:hover { transform: translateY(-5px); border-color: rgba(238, 43, 108, .4); background: var(--surface-hover); }
.card:hover::before { opacity: 1; }
.card-icon {
  width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(255, 138, 60, .16), rgba(238, 43, 108, .16));
  border: 1px solid rgba(238, 43, 108, .3);
  color: var(--orange);
}
.card-icon svg { width: 23px; height: 23px; }
.card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 9px; }
.card p { font-size: 14.5px; color: var(--text-sub); }

/* ---------------- 媒体源 ---------------- */
.source-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.source-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .3s ease, border-color .3s ease;
}
.source-card:hover { transform: translateY(-5px); border-color: rgba(255, 138, 60, .45); }
.source-head { display: flex; align-items: center; gap: 13px; }
.source-icon {
  width: 42px; height: 42px; flex: none; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad); color: #fff;
  box-shadow: 0 4px 16px rgba(238, 43, 108, .3);
}
.source-icon svg { width: 21px; height: 21px; }
.source-card h3 { font-size: 17.5px; font-weight: 700; }
.source-card p { font-size: 14.5px; color: var(--text-sub); flex: 1; }
.source-code {
  font-family: var(--mono); font-size: 13px;
  color: #ffb59a; background: rgba(255, 138, 60, .07);
  border: 1px solid rgba(255, 138, 60, .2); border-radius: 9px;
  padding: 9px 13px; overflow-x: auto; white-space: nowrap;
}

/* ---------------- 全端 ---------------- */
.client-row {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 52px; align-items: center;
  margin-bottom: 92px;
}
.client-row:last-child { margin-bottom: 0; }
.client-row-rev .client-shot { order: 2; }
.client-copy h3 { font-size: 24px; font-weight: 800; margin-bottom: 18px; }
.chip {
  vertical-align: 3px; margin-left: 10px;
  font-size: 12px; font-weight: 600; letter-spacing: .5px;
  color: var(--pink); background: rgba(238, 43, 108, .12);
  border: 1px solid rgba(238, 43, 108, .35);
  padding: 4px 11px; border-radius: 999px;
}
.ticks { list-style: none; display: grid; gap: 12px; margin-bottom: 24px; }
.ticks li {
  position: relative; padding-left: 30px;
  font-size: 15px; color: var(--text-sub);
}
.ticks li b { color: var(--text); font-weight: 600; }
.ticks li code { font-size: 13px; color: #ffb59a; background: rgba(255, 138, 60, .08); padding: 2px 7px; border-radius: 6px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 17px; height: 17px; border-radius: 50%;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12l5 5L20 7'/%3E%3C/svg%3E"),
    linear-gradient(135deg, #ff8a3c, #ee2b6c);
  background-size: 10px 10px, 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
}

/* 浏览器窗口 mockup */
.client-shot { min-width: 0; }
.browser-shot {
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
  background: #14141c;
}
.browser-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px; background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid var(--line-soft);
}
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3a48; }
.browser-bar i:nth-child(1) { background: #ff5f57; }
.browser-bar i:nth-child(2) { background: #febc2e; }
.browser-bar i:nth-child(3) { background: #28c840; }
.browser-url {
  margin-left: 10px; flex: 1; max-width: 340px;
  font-family: var(--mono); font-size: 12px; color: var(--text-dim);
  background: rgba(0, 0, 0, .35); border-radius: 7px; padding: 5px 12px;
}
.browser-shot img { width: 100%; }

/* 安卓双机 */
.phones-duo { position: relative; display: flex; justify-content: center; padding: 20px 0; }
.phones-duo .phone { width: 236px; animation: none; border-radius: 28px; }
.phones-duo .phone-a { transform: rotate(-5deg) translateY(10px); z-index: 2; }
.phones-duo .phone-b { transform: rotate(6deg) translate(-8px, 26px); opacity: .85; margin-left: -60px; }

/* 桌面窗口 mockup */
.window-shot {
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
  background: #14141c;
}
.window-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px; background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid var(--line-soft);
}
.window-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3a48; }
.window-bar i:nth-child(1) { background: #ff5f57; }
.window-bar i:nth-child(2) { background: #febc2e; }
.window-bar i:nth-child(3) { background: #28c840; }
.window-bar span { margin-left: 8px; font-size: 12.5px; color: var(--text-dim); }
.window-body {
  display: grid; place-items: center; gap: 16px; padding: 66px 20px;
  background:
    radial-gradient(ellipse 70% 90% at 50% 0%, rgba(238, 43, 108, .14), transparent),
    linear-gradient(160deg, #1a1225, #12101c 60%);
  text-align: center;
}
.window-body img { border-radius: 16px; box-shadow: 0 10px 34px rgba(238, 43, 108, .35); }
.window-body p { font-size: 17px; font-weight: 700; }
.window-body small { color: var(--text-dim); font-weight: 400; font-size: 13px; }

/* ---------------- 演示视频 ---------------- */
.video-frame {
  max-width: 920px; margin: 0 auto;
  border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 34px 90px rgba(0, 0, 0, .6), 0 0 80px rgba(238, 43, 108, .12);
  background: #000;
}
.video-frame video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #000; }

/* ---------------- 快速开始 ---------------- */
.qs-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.qs-steps { list-style: none; display: grid; gap: 30px; counter-reset: step; }
.qs-steps li { display: flex; gap: 18px; }
.qs-num {
  flex: none; width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  font-weight: 800; font-size: 17px; color: #fff;
  background: var(--grad); box-shadow: 0 4px 16px rgba(238, 43, 108, .35);
}
.qs-steps h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.qs-steps p { font-size: 14.5px; color: var(--text-sub); margin-bottom: 10px; }
.qs-steps code.inline {
  font-size: 13px; color: #ffb59a; background: rgba(255, 138, 60, .08);
  padding: 2px 7px; border-radius: 6px;
}
.cmd-line {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 13px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 8px 10px 14px; overflow-x: auto;
}
.cmd-line code { color: #e8e8ef; white-space: nowrap; }
.cmd-line .copy-btn { flex: none; }

/* 终端 mockup */
.terminal {
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  background: #0d0d13;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
}
.terminal-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px; background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid var(--line-soft);
}
.terminal-bar i { width: 11px; height: 11px; border-radius: 50%; }
.terminal-bar i:nth-child(1) { background: #ff5f57; }
.terminal-bar i:nth-child(2) { background: #febc2e; }
.terminal-bar i:nth-child(3) { background: #28c840; }
.terminal-bar span { margin-left: 8px; font-size: 12.5px; color: var(--text-dim); font-family: var(--mono); }
.terminal pre {
  padding: 22px 24px 26px; overflow-x: auto;
  font-family: var(--mono); font-size: 13.5px; line-height: 2;
  color: #d8d8e2;
}
.t-p { color: var(--orange); font-weight: 700; }
.t-dim { color: var(--text-dim); }
.t-ok { color: #5bdb8b; }
.t-key { color: #7fb3ff; }
.t-str { color: #ffb59a; }
.qs-note {
  margin-top: 40px; text-align: center;
  font-size: 14px; color: var(--text-dim);
}
.qs-note a { color: var(--orange); }
.qs-note a:hover { text-decoration: underline; }

/* ---------------- 技术栈 ---------------- */
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.tech-col {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 26px;
}
.tech-col h4 { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip-l {
  font-size: 13px; font-weight: 500; color: var(--text-sub);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; transition: .2s;
}
.chip-l:hover { color: #fff; border-color: rgba(238, 43, 108, .5); background: rgba(238, 43, 108, .1); }

/* ---------------- 文档卡片 ---------------- */
.doc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.doc-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
  display: flex; flex-direction: column; gap: 8px;
}
.doc-card:hover { transform: translateY(-5px); border-color: rgba(238, 43, 108, .45); background: var(--surface-hover); }
.doc-card h3 { font-size: 16.5px; font-weight: 700; display: flex; align-items: center; justify-content: space-between; }
.doc-card h3::after {
  content: "↗"; font-size: 15px; color: var(--orange);
  transition: transform .25s ease;
}
.doc-card:hover h3::after { transform: translate(3px, -3px); }
.doc-card p { font-size: 13.8px; color: var(--text-sub); }

/* ---------------- 页尾 CTA ---------------- */
.cta-band { padding: 96px 0 110px; overflow: hidden; position: relative; }
.cta-band::before {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 720px; height: 480px; transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(238, 43, 108, .16), transparent 65%);
  filter: blur(60px); pointer-events: none;
}
.cta-inner { position: relative; text-align: center; display: grid; justify-items: center; gap: 26px; }
.cta-inner img { border-radius: 16px; box-shadow: 0 10px 40px rgba(238, 43, 108, .4); }
.cta-inner h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; letter-spacing: -.5px; }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--line-soft); background: #08080c; padding: 64px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px;
  padding-bottom: 48px;
}
.footer-brand p { margin-top: 16px; font-size: 14px; color: var(--text-dim); }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.footer-col a {
  display: block; font-size: 14px; color: var(--text-sub);
  padding: 5px 0; transition: color .2s;
}
.footer-col a:hover { color: var(--orange); }
.footer-note { font-size: 13px; color: var(--text-dim); line-height: 1.8; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  border-top: 1px solid var(--line-soft);
  padding: 22px 24px; font-size: 13px; color: var(--text-dim);
}
.footer-bottom a:hover { color: var(--orange); }

/* ---------------- 入场动画 ---------------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------------- 响应式 ---------------- */
.m-only { display: none; }
@media (max-width: 1024px) {
  .feature-grid, .doc-grid { grid-template-columns: repeat(2, 1fr); }
  .client-row { grid-template-columns: 1fr; gap: 34px; }
  .client-row-rev .client-shot { order: 0; }
  .client-copy { max-width: 640px; }
  .qs-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: 0; margin-top: 10px; }
  .hero { padding-top: calc(var(--nav-h) + 48px); }
}
@media (max-width: 680px) {
  .m-only { display: block; }
  .section { padding: 72px 0; }
  .feature-grid, .source-grid, .doc-grid, .tech-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 22px 8px; }
  .stat b { font-size: 30px; }
  .hero-stats .stat:nth-child(n+4) { display: none; }
  .phone { width: 216px; }
  .phone-back { display: none; }
  .phones-duo .phone { width: 172px; }
  .phones-duo .phone-b { margin-left: -50px; }
  .window-body { padding: 48px 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cmd-chip { font-size: 12.5px; }
  .cmd-line code { font-size: 12px; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(11, 11, 16, .97); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links > a:not(.btn) { padding: 13px 0; border-bottom: 1px solid var(--line-soft); font-size: 15px; }
  .nav-links .btn { margin-top: 14px; justify-content: center; }
  .nav-burger { display: flex; }
  .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; }
  .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}