/* GGZip 官网 —— 苹果产品页风格。浅色 / 深色跟随系统，也可以手动切换；颜色全部是变量。 */

:root {
  --bg: #fbfbfd;
  --bg-alt: #f5f5f7;
  --card: #ffffff;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --text-3: #86868b;
  --line: rgba(0, 0, 0, 0.1);
  --line-soft: rgba(0, 0, 0, 0.06);
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-soft: rgba(0, 113, 227, 0.1);
  --on-accent: #ffffff;
  --link: #0066cc;
  --gold: #b07d12;
  --ok: #1d8f4e;
  --ro: #a35d00;
  --nav-bg: rgba(255, 255, 255, 0.7);
  --nav-border: rgba(0, 0, 0, 0.08);
  --nav-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.18);
  --shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.22), 0 18px 36px -18px rgba(0, 0, 0, 0.18);
  --shadow-sm: 0 10px 30px -12px rgba(0, 0, 0, 0.18);
  --win-edge: 0 0 0 1px rgba(0, 0, 0, 0.08);
  --hero-bg:
    radial-gradient(45% 55% at 12% 18%, rgba(255, 196, 140, 0.45), transparent 70%),
    radial-gradient(40% 50% at 88% 12%, rgba(150, 190, 255, 0.5), transparent 70%),
    radial-gradient(55% 60% at 70% 85%, rgba(214, 170, 255, 0.4), transparent 70%),
    radial-gradient(50% 50% at 20% 90%, rgba(140, 220, 210, 0.35), transparent 70%);
  --wall:
    radial-gradient(70% 90% at 0% 0%, #ffcf9e 0%, transparent 60%),
    radial-gradient(60% 80% at 100% 10%, #9fc2ff 0%, transparent 62%),
    radial-gradient(80% 80% at 80% 100%, #d7a8ff 0%, transparent 60%),
    radial-gradient(60% 70% at 10% 100%, #8fe0d4 0%, transparent 60%),
    linear-gradient(135deg, #f6e9ff, #e3efff);
  --menubar: rgba(255, 255, 255, 0.45);
  --menubar-ink: rgba(0, 0, 0, 0.55);
  --dock: rgba(255, 255, 255, 0.4);
  --menu-bg: rgba(246, 246, 248, 0.88);
  --menu-hl: #0a84ff;
  --pg-bg: #ffffff;
  --pg-bar: #f6f6f8;
  --pg-alt: #f5f5f7;
  --pg-sel: #0a84ff;
  --pg-sel-ink: #ffffff;
  --page: #ffffff;
  --page-line: #e5e5ea;
  --tag: rgba(0, 0, 0, 0.16);
  --keycap-top: #ffffff;
  --keycap-side: #d2d2d7;
  color-scheme: light;
}

/* 深色：跟随系统（用户没手动选浅色时） */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --bg-alt: #0f0f11;
    --card: #1c1c1e;
    --text: #f5f5f7;
    --text-2: #a1a1a6;
    --text-3: #8d8d93;
    --line: rgba(255, 255, 255, 0.14);
    --line-soft: rgba(255, 255, 255, 0.08);
    --accent: #0a84ff;
    --accent-hover: #2b95ff;
    --accent-soft: rgba(10, 132, 255, 0.18);
    --link: #2997ff;
    --gold: #e3b341;
    --ok: #30d158;
    --ro: #ffb340;
    --nav-bg: rgba(30, 30, 32, 0.68);
    --nav-border: rgba(255, 255, 255, 0.1);
    --nav-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.7);
    --shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.06);
    --shadow-sm: 0 10px 30px -12px rgba(0, 0, 0, 0.8);
    --win-edge: 0 0 0 1px rgba(255, 255, 255, 0.1);
    --hero-bg:
      radial-gradient(45% 55% at 12% 18%, rgba(255, 140, 80, 0.2), transparent 70%),
      radial-gradient(40% 50% at 88% 12%, rgba(60, 110, 255, 0.3), transparent 70%),
      radial-gradient(55% 60% at 70% 85%, rgba(150, 70, 255, 0.24), transparent 70%),
      radial-gradient(50% 50% at 20% 90%, rgba(40, 170, 160, 0.18), transparent 70%);
    --wall:
      radial-gradient(70% 90% at 0% 0%, #7a3b2e 0%, transparent 60%),
      radial-gradient(60% 80% at 100% 10%, #1f3f8f 0%, transparent 62%),
      radial-gradient(80% 80% at 80% 100%, #4b237a 0%, transparent 60%),
      radial-gradient(60% 70% at 10% 100%, #0f5a57 0%, transparent 60%),
      linear-gradient(135deg, #15132a, #0b1530);
    --menubar: rgba(0, 0, 0, 0.35);
    --menubar-ink: rgba(255, 255, 255, 0.7);
    --dock: rgba(40, 40, 46, 0.45);
    --menu-bg: rgba(40, 40, 44, 0.88);
    --pg-bg: #1e1e20;
    --pg-bar: #2a2a2d;
    --pg-alt: #242427;
    --page: #2c2c2e;
    --page-line: #3a3a3c;
    --tag: rgba(255, 255, 255, 0.18);
    --keycap-top: #3a3a3d;
    --keycap-side: #1a1a1c;
    color-scheme: dark;
  }
}

/* 深色：用户手动选择 */
:root[data-theme="dark"] {
  --bg: #000000;
  --bg-alt: #0f0f11;
  --card: #1c1c1e;
  --text: #f5f5f7;
  --text-2: #a1a1a6;
  --text-3: #8d8d93;
  --line: rgba(255, 255, 255, 0.14);
  --line-soft: rgba(255, 255, 255, 0.08);
  --accent: #0a84ff;
  --accent-hover: #2b95ff;
  --accent-soft: rgba(10, 132, 255, 0.18);
  --link: #2997ff;
  --gold: #e3b341;
  --ok: #30d158;
  --ro: #ffb340;
  --nav-bg: rgba(30, 30, 32, 0.68);
  --nav-border: rgba(255, 255, 255, 0.1);
  --nav-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.7);
  --shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.06);
  --shadow-sm: 0 10px 30px -12px rgba(0, 0, 0, 0.8);
  --win-edge: 0 0 0 1px rgba(255, 255, 255, 0.1);
  --hero-bg:
    radial-gradient(45% 55% at 12% 18%, rgba(255, 140, 80, 0.2), transparent 70%),
    radial-gradient(40% 50% at 88% 12%, rgba(60, 110, 255, 0.3), transparent 70%),
    radial-gradient(55% 60% at 70% 85%, rgba(150, 70, 255, 0.24), transparent 70%),
    radial-gradient(50% 50% at 20% 90%, rgba(40, 170, 160, 0.18), transparent 70%);
  --wall:
    radial-gradient(70% 90% at 0% 0%, #7a3b2e 0%, transparent 60%),
    radial-gradient(60% 80% at 100% 10%, #1f3f8f 0%, transparent 62%),
    radial-gradient(80% 80% at 80% 100%, #4b237a 0%, transparent 60%),
    radial-gradient(60% 70% at 10% 100%, #0f5a57 0%, transparent 60%),
    linear-gradient(135deg, #15132a, #0b1530);
  --menubar: rgba(0, 0, 0, 0.35);
  --menubar-ink: rgba(255, 255, 255, 0.7);
  --dock: rgba(40, 40, 46, 0.45);
  --menu-bg: rgba(40, 40, 44, 0.88);
  --pg-bg: #1e1e20;
  --pg-bar: #2a2a2d;
  --pg-alt: #242427;
  --page: #2c2c2e;
  --page-line: #3a3a3c;
  --tag: rgba(255, 255, 255, 0.18);
  --keycap-top: #3a3a3d;
  --keycap-side: #1a1a1c;
  color-scheme: dark;
}

/* 英文文案替换完之前先不显示（boot.js 加、main.js 去掉） */
.i18n-pending body { visibility: hidden; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: clip;
}
:lang(en) body, body:lang(en) { letter-spacing: -0.015em; }

img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 70%, transparent); outline-offset: 2px; border-radius: 8px; }

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
}
.skip:focus { top: 16px; }

/* ---------- 悬浮胶囊导航 ---------- */
.nav {
  position: fixed;
  top: 12px;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 0 16px;
  pointer-events: none;
}
.nav-pill {
  pointer-events: auto;
  max-width: 1080px;
  margin: 0 auto;
  height: 56px;
  padding: 0 10px 0 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-radius: 999px;
  background: var(--nav-bg);
  border: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  transition: box-shadow 0.3s ease, background-color 0.4s ease;
}
.nav.scrolled .nav-pill { box-shadow: var(--nav-shadow), 0 1px 0 var(--line-soft); }
.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 650;
  font-size: 18px;
  flex: none;
}
.nav-brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 4px; margin: 0 auto; }
.nav-links a {
  color: var(--text);
  opacity: 0.78;
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}
.nav-links a:hover { opacity: 1; text-decoration: none; background: var(--line-soft); }
.nav-actions { display: flex; align-items: center; gap: 6px; flex: none; }

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  opacity: 0.85;
  transition: background-color 0.2s ease, opacity 0.2s ease;
}
.icon-btn:hover { opacity: 1; background: var(--line-soft); }
.icon-btn svg { width: 19px; height: 19px; }
.lang-label { font-size: 13px; font-weight: 650; }
.theme-toggle svg { display: none; }
:root:not([data-theme]) .theme-toggle .i-auto,
:root[data-theme="light"] .theme-toggle .i-light,
:root[data-theme="dark"] .theme-toggle .i-dark { display: block; }
.menu-toggle { display: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 980px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 17px;
  font-weight: 550;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn:active { transform: scale(0.97); }
.btn svg { width: 20px; height: 20px; }
.btn-small { padding: 7px 16px; font-size: 14px; }
.btn-large {
  padding: 15px 30px;
  font-size: 18px;
  box-shadow: 0 12px 30px -10px color-mix(in srgb, var(--accent) 70%, transparent);
}

.link-arrow { font-size: 18px; }
.link-arrow::after { content: " ›"; }

/* ---------- 进场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.9s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- 通用标题 ---------- */
.eyebrow {
  color: var(--gold);
  font-size: 16px;
  font-weight: 650;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head .eyebrow { justify-content: center; }
.section-head h2,
.story-head h2 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  font-weight: 700;
  margin-bottom: 16px;
}
.section-head p { color: var(--text-2); font-size: clamp(17px, 2vw, 20px); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  padding: 132px 16px 40px;
  text-align: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--hero-bg);
  z-index: -1;
  filter: blur(10px);
}
.hero-text { max-width: 760px; margin: 0 auto; }
.hero-icon {
  margin: 0 auto 18px;
  width: 128px;
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.25));
}
.hero-title {
  font-size: clamp(52px, 9vw, 88px);
  font-weight: 750;
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.hero-tagline {
  margin-top: 8px;
  font-size: clamp(26px, 4.4vw, 42px);
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.hero-sub {
  margin: 16px auto 0;
  max-width: 620px;
  font-size: clamp(17px, 2.1vw, 20px);
  color: var(--text-2);
}
.hero-cta {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}
.hero-meta { margin-top: 16px; color: var(--text-3); font-size: 13px; line-height: 1.7; }
.hero-meta a { color: inherit; }
.hero-meta a:hover { color: var(--accent); }
.hero-text .reveal:nth-child(2) { transition-delay: 0.06s; }
.hero-text .reveal:nth-child(3) { transition-delay: 0.12s; }
.hero-text .reveal:nth-child(4) { transition-delay: 0.18s; }
.hero-text .reveal:nth-child(5) { transition-delay: 0.24s; }
.hero-text .reveal:nth-child(6) { transition-delay: 0.3s; }

/* 首屏合成图：主窗口 + 简介面板 + 快速查看，叠放、错位、轻微倾斜 */
.hero-visual {
  position: relative;
  max-width: 1120px;
  margin: 56px auto 0;
  aspect-ratio: 1120 / 620;
  transition-delay: 0.3s;
}
.comp { position: absolute; }
.comp img, .crop-info { border-radius: 14px; box-shadow: var(--shadow), var(--win-edge); }
.comp-main { left: 14%; top: 0; width: 70%; }
.comp-info { right: 1%; top: 16%; width: 23%; transform: rotate(2.5deg); }
.comp-ql { left: 1%; top: 42%; width: 36%; transform: rotate(-3deg); }
.crop-info {
  position: relative;
  aspect-ratio: 790 / 954;
  overflow: hidden;
  background: var(--card);
}
.crop-info img {
  position: absolute;
  max-width: none;
  width: 227.85%;
  left: -63.92%;
  top: -10.27%;
  border-radius: 0;
  box-shadow: none;
}
.hero-visual.in .comp-info { animation: float-a 9s ease-in-out 1s infinite; }
.hero-visual.in .comp-ql { animation: float-b 10s ease-in-out 1.4s infinite; }
@keyframes float-a { 50% { transform: rotate(2.5deg) translateY(-10px); } }
@keyframes float-b { 50% { transform: rotate(-3deg) translateY(8px); } }

/* ---------- 一句话 + 视频 ---------- */
.intro { padding: 96px 16px 110px; }
.statement {
  max-width: 980px;
  margin: 0 auto 72px;
  font-size: clamp(28px, 4.8vw, 54px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.statement .muted { color: var(--text-3); }
.desk {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  border-radius: 32px;
  overflow: hidden;
  padding: 7% 7% 9%;
  box-shadow: var(--shadow);
  isolation: isolate;
}
.wallpaper { position: absolute; inset: 0; background: var(--wall); z-index: -1; }
.desk-menubar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 26px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 16px;
  background: var(--menubar);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--menubar-ink);
  font-size: 12px;
  font-weight: 600;
}
.mb-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--menubar-ink); }
.mb-bar { width: 52px; height: 6px; border-radius: 3px; background: var(--menubar-ink); opacity: 0.6; }
.mb-bar.short { width: 30px; }
.mb-spacer { flex: 1; }
.desk-window {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.5), var(--win-edge);
  aspect-ratio: 16 / 9;
  background: var(--bg-alt);
}
.desk-window video { width: 100%; height: 100%; object-fit: cover; }
.desk-dock {
  position: absolute;
  left: 50%;
  bottom: 2.2%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 22px;
  background: var(--dock);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}
.desk-dock i, .desk-dock img { width: 40px; height: 40px; border-radius: 10px; }
.desk-dock i { background: linear-gradient(160deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.25)); }
.video-toggle {
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 0;
  cursor: pointer;
  color: #fff;
  background: rgba(30, 30, 32, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.desk-window:hover .video-toggle,
.video-toggle:focus-visible,
.video-toggle.paused { opacity: 1; }
.video-toggle svg { width: 18px; height: 18px; }
.video-toggle .i-play { display: none; }
.video-toggle.paused .i-play { display: block; }
.video-toggle.paused .i-pause { display: none; }
.caption { text-align: center; color: var(--text-3); font-size: 14px; margin-top: 18px; }

/* ---------- 叙事式功能（sticky） ---------- */
.story { padding: 40px 16px 80px; }
.story-head { max-width: 1180px; margin: 0 auto 24px; }
.story-body {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 56px;
}
.story-steps { grid-column: 1; grid-row: 1; }
.story-stage {
  grid-column: 2;
  grid-row: 1;
  position: sticky;
  top: calc(50vh - min(34vw, 560px) * 0.4);
  align-self: start;
  aspect-ratio: 5 / 4;
  border-radius: 28px;
  overflow: hidden;
  isolation: isolate;
  box-shadow: var(--shadow-sm);
}
.step {
  min-height: 78vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0.28;
  transition: opacity 0.5s ease;
}
.step.is-active { opacity: 1; }
.step h3 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 16px;
}
.step p:not(.eyebrow) { color: var(--text-2); font-size: 19px; max-width: 30em; }
.step-no {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.visual {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 7%;
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  transition: opacity 0.55s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  pointer-events: none;
}
.visual.is-active { opacity: 1; transform: none; }
.visual .win {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.5), var(--win-edge);
}
.visual .win-narrow { width: 86%; }
.visual[data-step="1"] { display: block; }
.visual .win-back { position: absolute; left: 7%; top: 12%; width: 80%; filter: saturate(0.8) brightness(0.92); }
.visual .win-ql { position: absolute; right: 6%; bottom: 10%; width: 62%; transform: translateY(30px) scale(0.92); opacity: 0; transition: transform 0.6s 0.25s cubic-bezier(0.2, 0.8, 0.2, 1.1), opacity 0.4s 0.25s ease; }
.visual.is-active .win-ql { transform: none; opacity: 1; }
.key-hint {
  position: absolute;
  left: 12%;
  bottom: 12%;
  width: 120px;
  height: 46px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 22px;
  color: var(--text-2);
  background: var(--keycap-top);
  box-shadow: 0 4px 0 var(--keycap-side), 0 10px 24px -8px rgba(0, 0, 0, 0.4);
}
.visual.is-active .key-hint { animation: key-press 2.4s ease-in-out 0.2s infinite; }
@keyframes key-press { 0%, 30%, 100% { transform: none; } 15% { transform: translateY(3px); box-shadow: 0 1px 0 var(--keycap-side), 0 6px 14px -8px rgba(0, 0, 0, 0.4); } }

.stage-dots {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  list-style: none;
  margin: 0;
  padding: 8px 6px;
  display: grid;
  gap: 7px;
  border-radius: 999px;
  background: var(--menubar);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.stage-dots li { width: 6px; height: 6px; border-radius: 3px; background: var(--menubar-ink); opacity: 0.35; transition: height 0.3s ease, opacity 0.3s ease; }
.stage-dots li.on { height: 18px; opacity: 0.9; }

/* 用途预设（HTML 画的示意） */
.mock-sheet {
  width: 88%;
  max-width: 520px;
  padding: 22px;
  border-radius: 20px;
  background: var(--menu-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.5), var(--win-edge);
  font-size: 14px;
}
.ms-title { font-weight: 650; font-size: 16px; margin-bottom: 14px; }
.ms-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 16px; }
.ms-card {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 14px 6px 12px;
  border-radius: 14px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--line);
  text-align: center;
  line-height: 1.25;
}
.ms-card svg { width: 30px; height: 30px; color: var(--text-2); }
.ms-card b { font-size: 13px; font-weight: 600; }
.ms-card small { color: var(--text-3); font-size: 12px; }
.ms-card.on { box-shadow: inset 0 0 0 2px var(--accent); background: var(--accent-soft); }
.ms-card.on svg { color: var(--accent); }
.visual.is-active .ms-card { animation: pick 6s ease-in-out infinite; }
.visual.is-active .ms-card:nth-child(2) { animation-delay: 2s; }
.visual.is-active .ms-card:nth-child(3) { animation-delay: 4s; }
@keyframes pick { 0%, 30%, 100% { transform: none; } 12% { transform: translateY(-4px); } }
.ms-rows { border-radius: 12px; background: var(--card); padding: 0 14px; }
.ms-rows div { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
.ms-rows div:last-child { border-bottom: 0; }
.ms-rows span:last-child { color: var(--text-2); }
.ms-switch { width: 38px; height: 22px; border-radius: 11px; background: #34c759; position: relative; }
.ms-switch::after { content: ""; position: absolute; right: 2px; top: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; }
.ms-buttons { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.ms-buttons span { padding: 6px 16px; border-radius: 999px; background: var(--card); box-shadow: inset 0 0 0 1px var(--line); }
.ms-buttons .primary { background: var(--accent); color: var(--on-accent); box-shadow: none; }

/* Finder 右键菜单示意 */
.menu-mock { position: relative; width: 88%; height: 78%; font-size: 14px; }
.menu-files { display: grid; gap: 6px; width: 210px; }
.mock-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--text);
  background: var(--menu-bg);
}
.mock-file.sel { background: var(--menu-hl); color: #fff; }
.mock-folder, .mock-doc { width: 22px; height: 18px; border-radius: 4px; flex: none; }
.mock-folder { background: linear-gradient(#6cc0ff, #2d9bf0); }
.mock-doc { width: 16px; height: 20px; background: #fff; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15); border-radius: 2px; }
.menu, .submenu {
  position: absolute;
  padding: 6px;
  border-radius: 14px;
  background: var(--menu-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--line);
}
.menu { left: 30%; top: 30%; width: 190px; }
.submenu { left: 178px; top: 108px; width: 210px; }
.menu-item { padding: 4px 10px; border-radius: 7px; position: relative; white-space: nowrap; }
.menu-item.on { background: var(--line); }
.menu-item.has-sub::after { content: "›"; position: absolute; right: 10px; color: var(--text-3); }
.menu-item.hl { background: var(--menu-hl); color: #fff; }
.menu-sep { height: 1px; background: var(--line); margin: 5px 10px; }

/* ---------- 可交互演示 ---------- */
.playground { padding: 110px 16px; background: var(--bg-alt); transition: background-color 0.4s ease; }
.pg-wrap {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 32px;
  align-items: center;
}
.pg-window {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: var(--pg-bg);
  box-shadow: var(--shadow), var(--win-edge);
  font-size: 14px;
  display: flex;
  flex-direction: column;
  height: 460px;
}
.pg-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--pg-bar);
  border-bottom: 1px solid var(--line-soft);
}
.pg-lights { display: flex; gap: 7px; padding-right: 4px; }
.pg-lights i { width: 12px; height: 12px; border-radius: 50%; background: #ff5f57; }
.pg-lights i:nth-child(2) { background: #febc2e; }
.pg-lights i:nth-child(3) { background: #28c840; }
.pg-tb, .pg-views button {
  border: 0;
  background: transparent;
  width: 32px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--text-2);
  padding: 0;
}
.pg-tb:hover:not(:disabled), .pg-views button:hover { background: var(--line-soft); color: var(--text); }
.pg-tb:disabled { opacity: 0.35; cursor: default; }
.pg-tb svg, .pg-views svg { width: 17px; height: 17px; }
.pg-title { display: grid; line-height: 1.2; min-width: 0; margin-right: auto; }
.pg-title b { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pg-title small { color: var(--text-3); font-size: 11.5px; }
.pg-views { display: flex; gap: 2px; padding: 2px; border-radius: 10px; background: var(--line-soft); }
.pg-views button[aria-pressed="true"] { background: var(--card); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15); }
.pg-search {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 210px;
  padding: 0 10px;
  height: 32px;
  border-radius: 999px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--text-3);
}
.pg-search:focus-within { box-shadow: inset 0 0 0 2px var(--accent); }
.pg-search svg { width: 15px; height: 15px; flex: none; }
.pg-search input {
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  width: 100%;
  min-width: 0;
}
.pg-body { flex: 1; overflow: auto; position: relative; }
.pg-empty { padding: 60px 20px; text-align: center; color: var(--text-3); }
.it {
  border: 0;
  background: transparent;
  cursor: default;
  text-align: left;
  font: inherit;
  color: var(--text);
  padding: 0;
}
.it:focus-visible { outline-offset: -2px; }
.it svg { width: 22px; height: 22px; flex: none; }

/* 列表 */
.pg-head, .it.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 90px minmax(0, 0.6fr);
  gap: 12px;
  align-items: center;
  padding: 0 14px;
}
.pg-head { height: 30px; font-size: 12px; color: var(--text-3); border-bottom: 1px solid var(--line-soft); position: sticky; top: 0; background: var(--pg-bg); }
.it.row { width: 100%; height: 34px; border-radius: 0; }
.it.row:nth-of-type(even) { background: var(--pg-alt); }
.it.row .nm { display: flex; align-items: center; gap: 8px; min-width: 0; }
.it.row .nm span, .it.row .kd { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.it.row .sz { text-align: right; color: var(--text-2); font-variant-numeric: tabular-nums; }
.it.row .kd { color: var(--text-2); }
.it.on, .it.row.on { background: var(--pg-sel); color: var(--pg-sel-ink); }
.it.on .sz, .it.on .kd, .it.on .loc { color: var(--pg-sel-ink); opacity: 0.85; }

/* 图标 */
.pg-icons { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 6px; padding: 16px; }
.it.cell { display: grid; justify-items: center; gap: 6px; padding: 10px 6px; border-radius: 10px; text-align: center; }
.it.cell svg { width: 60px; height: 60px; }
.it.cell .ic { padding: 4px; border-radius: 8px; }
.it.cell .nm { font-size: 12.5px; line-height: 1.25; padding: 1px 6px; border-radius: 5px; word-break: break-all; }
.it.cell .loc { font-size: 11px; color: var(--text-3); }
.it.cell.on { background: transparent; color: var(--text); }
.it.cell.on .ic { background: var(--line-soft); }
.it.cell.on .nm { background: var(--pg-sel); color: var(--pg-sel-ink); }
.it.cell.on .loc { color: var(--text-3); }

/* 分栏 */
.pg-cols { display: flex; height: 100%; overflow-x: auto; }
.col { flex: 0 0 200px; border-right: 1px solid var(--line-soft); padding: 6px; display: flex; flex-direction: column; gap: 1px; overflow-y: auto; }
.it.crow { display: flex; align-items: center; gap: 8px; height: 30px; padding: 0 8px; border-radius: 6px; width: 100%; }
.it.crow span { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.it.crow svg { width: 20px; height: 20px; }
.chev { font-style: normal; color: var(--text-3); }
.it.crow.inpath { background: var(--line); }
.it.on .chev { color: var(--pg-sel-ink); }
.col-pv { flex: 1 0 220px; align-items: center; justify-content: center; text-align: center; gap: 4px; padding: 16px; border-right: 0; }
.col-pv small { color: var(--text-3); font-size: 12px; }
.mini-pv { width: 160px; margin-bottom: 8px; }
.mini-pv .pv-page { font-size: 7px; padding: 10px; }

.pg-path {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 14px;
  font-size: 12px;
  color: var(--text-2);
  border-top: 1px solid var(--line-soft);
  background: var(--pg-bar);
}
.pg-path .crumbs { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pg-path i { font-style: normal; color: var(--text-3); margin: 0 2px; }
.pg-path .count { color: var(--text-3); flex: none; }

/* 预览 */
.pg-preview {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.pg-preview.show { opacity: 1; }
.pg-preview[hidden] { display: none; }
.pv-card {
  width: min(440px, 100%);
  border-radius: 16px;
  overflow: hidden;
  background: var(--menu-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 30px 70px -10px rgba(0, 0, 0, 0.55), var(--win-edge);
  transform: scale(0.9);
  transition: transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
.pg-preview.show .pv-card { transform: none; }
.pv-bar { display: flex; align-items: center; gap: 8px; padding: 8px 10px; font-size: 13px; }
.pv-bar b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pv-close { width: 26px; height: 26px; border-radius: 50%; border: 0; background: var(--line-soft); cursor: pointer; display: grid; place-items: center; padding: 0; flex: none; }
.pv-close svg { width: 13px; height: 13px; }
.pv-content { padding: 0 12px 12px; }
.pv-img { aspect-ratio: 4 / 3; border-radius: 10px; position: relative; overflow: hidden; }
.pv-img i { position: absolute; right: 18%; top: 18%; width: 16%; aspect-ratio: 1; border-radius: 50%; background: rgba(255, 255, 255, 0.75); }
.pv-img::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 38%; background: rgba(0, 0, 0, 0.18); clip-path: polygon(0 60%, 25% 10%, 45% 55%, 65% 25%, 100% 70%, 100% 100%, 0 100%); }
.pv-video { aspect-ratio: 16 / 10; border-radius: 10px; background: linear-gradient(160deg, #1b4f8a, #39a0c8 60%, #f1d39a); display: grid; place-items: center; color: #fff; position: relative; }
.pv-video span { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; background: rgba(0, 0, 0, 0.35); font-size: 20px; padding-left: 4px; }
.pv-video small { position: absolute; right: 10px; bottom: 8px; font-size: 11px; }
.pv-page {
  aspect-ratio: 3 / 4;
  max-height: 320px;
  margin: 0 auto;
  background: var(--page);
  color: var(--text);
  border-radius: 6px;
  box-shadow: 0 0 0 1px var(--page-line);
  padding: 22px;
  font-size: 12px;
  line-height: 1.6;
  text-align: left;
  overflow: hidden;
}
.pv-page b { display: block; font-size: 1.35em; margin-bottom: 0.8em; }
.pv-page p { padding: 0.3em 0; border-bottom: 1px solid var(--page-line); }
.pv-txt { white-space: pre-wrap; font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.pv-sheet { aspect-ratio: auto; padding: 12px; }
.pv-sheet table { width: 100%; border-collapse: collapse; }
.pv-sheet th, .pv-sheet td { border: 1px solid var(--page-line); padding: 4px 6px; text-align: left; }
.pv-sheet th { background: color-mix(in srgb, #34c759 18%, transparent); }
.pv-folder { display: grid; justify-items: center; gap: 6px; padding: 20px; color: var(--text-2); }
.pv-folder svg { width: 96px; height: 96px; }
.col-pv .pv-folder svg { width: 64px; height: 64px; }

/* 空格键帽 */
.pg-side { display: grid; justify-items: center; gap: 14px; text-align: center; }
.keycap {
  width: 200px;
  height: 64px;
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  background: var(--keycap-top);
  color: var(--text-2);
  font-size: 15px;
  font-weight: 550;
  box-shadow: 0 5px 0 var(--keycap-side), 0 14px 30px -10px rgba(0, 0, 0, 0.35), inset 0 0 0 1px var(--line-soft);
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}
.keycap:hover { color: var(--text); }
.keycap:active, .keycap.down {
  transform: translateY(4px);
  box-shadow: 0 1px 0 var(--keycap-side), 0 6px 14px -8px rgba(0, 0, 0, 0.35), inset 0 0 0 1px var(--line-soft);
}
.pg-hint { color: var(--text-2); font-size: 14px; }
.pg-hint.flash { animation: flash 0.9s ease; }
@keyframes flash { 30% { color: var(--accent); transform: scale(1.04); } }
.pg-tip { color: var(--text-3); font-size: 13px; }

/* ---------- 更多细节 ---------- */
.tiles { padding: 110px 16px; }
.tiles-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.tile, .sec-card {
  background: var(--card);
  border-radius: 24px;
  padding: 30px 28px;
  box-shadow: inset 0 0 0 1px var(--line-soft);
  transition: background-color 0.4s ease, transform 0.4s ease;
}
.tile:hover, .sec-card:hover { transform: translateY(-3px); }
.tile h3, .sec-card h3 { font-size: 21px; font-weight: 700; margin-bottom: 8px; }
.tile p, .sec-card p { color: var(--text-2); font-size: 16px; }
.tile-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  margin-bottom: 20px;
}
.tile-icon svg { width: 28px; height: 28px; }
.tiles .tile { background: var(--bg-alt); box-shadow: none; }

/* ---------- 格式 ---------- */
.formats { position: relative; padding: 110px 16px; overflow: hidden; background: var(--bg-alt); transition: background-color 0.4s ease; }
.tag-cloud { position: absolute; inset: 0; pointer-events: none; }
.tag-cloud span {
  position: absolute;
  font: 600 15px ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--tag);
  white-space: nowrap;
  animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate(14px, -18px); } }
.formats-card {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 64px 48px 48px;
  border-radius: 32px;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--line-soft);
}
.formats-card .section-head { margin-bottom: 36px; }
.format-icons {
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px 28px;
}
.format-icons li { display: grid; justify-items: center; gap: 6px; font-weight: 600; font-size: 14px; color: var(--text-2); }
.format-icons img { width: 80px; filter: drop-shadow(0 10px 16px rgba(0, 0, 0, 0.18)); transition: transform 0.3s ease; }
.format-icons li:hover img { transform: translateY(-6px) scale(1.04); }
.format-table { overflow-x: auto; }
.format-table table { margin: 0 auto; border-collapse: collapse; width: 100%; text-align: left; font-size: 15px; }
.format-table th, .format-table td { padding: 13px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.format-table thead th { color: var(--text-3); font-weight: 500; font-size: 13px; }
.format-table tbody th { font-weight: 650; white-space: nowrap; }
.format-table .y { color: var(--ok); }
.format-table .r { color: var(--ro); }
.format-table .n { color: var(--text-3); }
.table-note { color: var(--text-3); font-size: 13px; margin-top: 14px; text-align: center; }

/* ---------- 安全 ---------- */
.security { padding: 120px 16px; }
.sec-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.sec-card { background: var(--bg-alt); box-shadow: none; }
.sec-wide { grid-column: span 2; }
.sec-card .tile-icon { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }

/* ---------- 常见问题 ---------- */
.faq { padding: 110px 16px; background: var(--bg-alt); transition: background-color 0.4s ease; }
.faq-list { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 40px 20px 4px;
  font-size: 18px;
  font-weight: 600;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.25s ease;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { padding: 0 40px 22px 4px; color: var(--text-2); }

/* ---------- 下载 ---------- */
.download {
  position: relative;
  text-align: center;
  padding: 120px 16px;
  overflow: hidden;
  isolation: isolate;
}
.download::before { content: ""; position: absolute; inset: 0; background: var(--hero-bg); z-index: -1; filter: blur(10px); }
.download img { margin: 0 auto 24px; filter: drop-shadow(0 16px 26px rgba(0, 0, 0, 0.25)); }
.download h2 { font-size: clamp(36px, 5.4vw, 60px); font-weight: 700; }
.download > p { color: var(--text-2); font-size: 19px; margin-top: 14px; }
.download .hero-meta { font-size: 13px; color: var(--text-3); }
.download .dl-note { font-size: 14px; margin-top: 8px; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); padding: 48px 16px 28px; font-size: 13px; color: var(--text-2); }
.footer-inner, .footer-bottom { max-width: 1080px; margin: 0 auto; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-brand { display: grid; gap: 10px; max-width: 300px; }
.footer-brand .nav-brand { font-size: 17px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, minmax(110px, auto)); gap: 32px 56px; }
.footer-cols div { display: grid; gap: 8px; align-content: start; }
.footer-cols h4 { font-size: 13px; font-weight: 650; color: var(--text); margin-bottom: 2px; }
.footer-cols a { color: var(--text-2); }
.footer-cols a:hover { color: var(--text); }
.footer-bottom { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--text-3); font-size: 12px; }

/* ---------- 子页面（更新日志、隐私、许可） ---------- */
.doc { max-width: 760px; margin: 0 auto; padding: 140px 16px 100px; }
.doc h1 { font-size: clamp(38px, 6vw, 56px); font-weight: 700; line-height: 1.08; margin-bottom: 12px; }
.doc .lead { color: var(--text-2); font-size: 19px; margin-bottom: 44px; }
.doc h2 { font-size: 26px; font-weight: 700; margin: 44px 0 14px; }
.doc h3 { font-size: 18px; font-weight: 650; margin: 26px 0 8px; }
.doc p, .doc li { color: var(--text-2); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 1.2em; margin: 8px 0 0; display: grid; gap: 6px; }
.doc code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.9em; background: var(--line-soft); padding: 1px 6px; border-radius: 6px; }
.release { padding: 28px; border-radius: 24px; background: var(--bg-alt); }
.release + .release { margin-top: 24px; }
.release-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.release-head h2 { margin: 0; }
.release-head .badge { font-size: 12px; font-weight: 650; color: var(--accent); background: var(--accent-soft); padding: 2px 10px; border-radius: 999px; }
.release-head time { color: var(--text-3); font-size: 14px; }
.release h3:first-of-type { margin-top: 18px; }
.callout { margin-top: 28px; padding: 18px 20px; border-radius: 16px; background: var(--accent-soft); color: var(--text); }

/* ---------- 窄屏 ---------- */
@media (max-width: 1000px) {
  .nav-links a { padding: 6px 8px; font-size: 13px; }
}
@media (max-width: 860px) {
  .menu-toggle { display: grid; }
  .nav-dl { display: none; }
  .nav-pill { position: relative; gap: 8px; }
  .nav-actions { margin-left: auto; }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: grid;
    gap: 2px;
    padding: 8px;
    border-radius: 22px;
    background: var(--nav-bg);
    border: 1px solid var(--nav-border);
    box-shadow: var(--nav-shadow);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  }
  .nav.open .nav-links { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { font-size: 16px; padding: 10px 14px; border-radius: 14px; }

  .hero { padding-top: 112px; }
  .br-wide { display: none; }
  .hero-visual { margin-top: 40px; aspect-ratio: 1 / 0.82; }
  .comp-main { left: 4%; width: 92%; }
  .comp-info { right: 0; top: 34%; width: 34%; }
  .comp-ql { left: 0; top: 52%; width: 52%; }

  .desk { border-radius: 20px; padding: 9% 4% 16%; }
  .desk-dock { gap: 6px; padding: 6px 8px; border-radius: 16px; }
  .desk-dock i, .desk-dock img { width: 28px; height: 28px; border-radius: 7px; }

  /* 手机：画面吸在导航下面，文字在下面滚过 */
  .story-body { grid-template-columns: minmax(0, 1fr); gap: 0; }
  /* 向上画一块背景色，挡住从画面上方滚过去的文字 */
  .story-stage { grid-column: 1; top: 80px; z-index: 2; border-radius: 20px; aspect-ratio: 4 / 3; box-shadow: 0 -100px 0 24px var(--bg); }
  .story-steps { grid-row: 2; position: relative; z-index: 1; }
  .step { min-height: 70vh; justify-content: flex-start; padding-top: 32px; }
  .step p:not(.eyebrow) { font-size: 17px; }
  .menu-mock { font-size: 12px; }
  .menu-files { width: 160px; }
  .menu { left: 18%; top: 34%; width: 150px; }
  .submenu { left: 110px; top: 92px; width: 170px; }
  .mock-sheet { padding: 14px; font-size: 12px; }
  .ms-card { padding: 10px 4px; }
  .ms-card svg { width: 22px; height: 22px; }
  .ms-card b { font-size: 11px; }
  .ms-rows div { padding: 6px 0; }
  .ms-buttons { display: none; }
  .ms-title { font-size: 14px; margin-bottom: 10px; }

  .pg-wrap { grid-template-columns: minmax(0, 1fr); }
  .pg-side { grid-row: 1; }
  .tiles-grid, .sec-grid { grid-template-columns: minmax(0, 1fr); }
  .sec-wide { grid-column: auto; }
  .formats-card { padding: 44px 20px 32px; border-radius: 24px; }
}
@media (max-width: 600px) {
  .pg-window { height: 440px; }
  .pg-toolbar { flex-wrap: wrap; row-gap: 8px; }
  .pg-search { order: 5; width: 100%; }
  .pg-head, .it.row { grid-template-columns: minmax(0, 1fr) 64px; }
  .pg-head span:nth-child(3), .it.row .kd { display: none; }
  .col { flex-basis: 150px; }
  .col-pv { flex-basis: 170px; }
  .mini-pv { width: 120px; }
  .format-icons img { width: 60px; }
  /* 手机：表格改成一行一张小卡片，每格上面写列名（列名由 main.js 填进 data-label） */
  .format-table thead { display: none; }
  .format-table tbody tr { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px 12px; padding: 14px 2px; border-bottom: 1px solid var(--line); }
  .format-table tbody th { grid-column: 1 / -1; border: 0; padding: 0 0 4px; font-size: 16px; white-space: normal; }
  .format-table td { border: 0; padding: 0; font-size: 13.5px; }
  .format-table td::before { content: attr(data-label); display: block; color: var(--text-3); font-size: 11.5px; margin-bottom: 2px; }
  .footer-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; width: 100%; }
  .key-hint { width: 84px; height: 34px; font-size: 16px; }
  .release { padding: 22px 18px; border-radius: 20px; }
}

/* 减弱动态：去掉进场、漂浮、自动动画 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .visual, .visual .win-ql, .step, .pv-card, .pg-preview { transition: none; }
  .visual { transform: none; }
  .hero-visual.in .comp-info, .hero-visual.in .comp-ql,
  .tag-cloud span, .visual.is-active .key-hint, .visual.is-active .ms-card { animation: none; }
}