/* ============================================================
   RMFlashTool 介绍页样式
   配色沿用工具本体 theme.slint：白底 / 蓝 #2563EB / 石板灰文字
   风格：柔和、克制、留白，动效丝滑
   ============================================================ */

:root {
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --bg-card: #ffffff;
  --bg-hover: #f3f4f6;

  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-glow: #3b82f6;
  --purple: #7c3aed;
  --magenta: #ec4899;

  --success: #16a34a;
  --warning: #d97706;
  --error: #dc2626;

  --text: #1e293b;
  --text-dim: #475569;
  --text-muted: #94a3b8;

  --border: #e2e8f0;
  --border-soft: #eef2f7;

  --shadow-sm: 0 1px 2px rgba(30, 41, 59, .04), 0 2px 8px rgba(30, 41, 59, .04);
  --shadow-md: 0 6px 20px rgba(30, 41, 59, .06), 0 2px 6px rgba(30, 41, 59, .04);
  --shadow-lg: 0 24px 60px rgba(37, 99, 235, .12), 0 8px 24px rgba(30, 41, 59, .06);

  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-soft: cubic-bezier(.4, 0, .2, 1);
  --ease-jelly: cubic-bezier(.34, 1.56, .64, 1);
  --ease-spring: cubic-bezier(.3, 1.35, .4, 1);

  --maxw: 1160px;
  --nav-h: 68px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

body {
  font-family: "MiSans", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC",
    "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.25; letter-spacing: -.01em; }
a { color: inherit; text-decoration: none; }
strong { color: var(--text); font-weight: 600; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 24px;
  padding: 0 clamp(18px, 4vw, 48px);
  background: rgba(255, 255, 255, .72);
  backdrop-filter: saturate(170%) blur(14px);
  -webkit-backdrop-filter: saturate(170%) blur(14px);
  border-bottom: 1px solid transparent;
  box-shadow: inset 0 -1px 0 rgba(255,255,255,.5);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}
.nav.scrolled { border-bottom-color: var(--border-soft); box-shadow: 0 4px 18px rgba(30,41,59,.06), inset 0 1px 0 rgba(255,255,255,.7); background: rgba(255,255,255,.82); }

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 10px; color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-glow));
  box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
}
.brand-name { font-size: 17px; letter-spacing: -.02em; }

.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a {
  position: relative; padding: 8px 14px; border-radius: 999px;
  font-size: 14.5px; color: var(--text-dim); font-weight: 500;
  transition: color .25s var(--ease), background .25s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--bg-hover); }

.nav-cta {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-glow));
  box-shadow: 0 8px 18px rgba(37, 99, 235, .28);
  transition: transform .35s var(--ease-spring), box-shadow .35s var(--ease);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(37, 99, 235, .34); }
.nav-cta svg { transition: transform .35s var(--ease-spring); }
.nav-cta:hover svg { transform: translateX(3px); }

.nav-toggle { display: none; margin-left: auto; width: 42px; height: 42px;
  background: none; border: 1px solid var(--border); border-radius: 12px; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 18px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 通用容器与标题 ---------- */
section { padding: clamp(64px, 9vw, 128px) clamp(18px, 4vw, 48px); }
.section-head { max-width: 780px; margin: 0 auto clamp(40px, 6vw, 64px); text-align: center; }
.section-head h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 600; margin: 14px 0 16px; }
.section-lead { color: var(--text-dim); font-size: clamp(15px, 1.6vw, 17px); }

.tag {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: .02em;
  color: var(--blue-dark); background: #eff4ff; border: 1px solid #dbe6ff;
}
.tag-star { color: var(--purple); background: #f5f0ff; border-color: #e6dbff; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  padding-top: calc(var(--nav-h) + clamp(36px, 7vw, 84px));
  display: grid; align-content: center;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: clamp(28px, 4.5vw, 64px);
  max-width: 1260px; margin: 0 auto;
}
.hero-inner { max-width: 560px; }
.eyebrow { color: var(--blue-dark); font-weight: 600; font-size: 14px; letter-spacing: .04em; }
.hero-title { font-size: clamp(38px, 6.4vw, 68px); font-weight: 600; margin: 16px 0 20px; letter-spacing: -.03em; }
.grad {
  background: linear-gradient(110deg, var(--blue) 10%, var(--purple) 55%, var(--magenta) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 200% auto; animation: shine 7s ease-in-out infinite alternate;
}
@keyframes shine { from { background-position: 0% center; } to { background-position: 200% center; } }
.hero-sub { color: var(--text-dim); font-size: clamp(15px, 1.7vw, 18px); max-width: 560px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 40px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .35s var(--ease-spring), box-shadow .35s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-glow));
  box-shadow: 0 10px 26px rgba(37, 99, 235, .3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(37, 99, 235, .36); }
.btn-primary svg { transition: transform .35s var(--ease-spring); }
.btn-primary:hover svg { transform: translateX(4px); }
.btn-ghost { color: var(--text); background: #fff; border-color: var(--border); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--blue); color: var(--blue-dark); }

.hero-stats { display: flex; flex-wrap: wrap; gap: clamp(20px, 4vw, 44px); }
.stat { display: flex; flex-direction: column; }
.stat-num { font-size: clamp(24px, 3.2vw, 34px); font-weight: 700; color: var(--text);
  font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.stat-label { font-size: 13.5px; color: var(--text-muted); }

/* Hero 视觉：真实主界面截图（液态玻璃展框，放大占满） */
.hero-visual { display: flex; align-items: center; justify-content: center; width: 100%; margin: 0; perspective: 1700px;
  animation: heroShotIn 1s var(--ease-jelly) both; }
@keyframes heroShotIn {
  from { opacity: 0; transform: translateY(28px) scale(.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.shot-frame {
  position: relative; width: 100%; border-radius: var(--r-lg); overflow: hidden; padding: 12px;
  background: linear-gradient(150deg, #ffffff 0%, #eef2fc 100%);
  border: 1px solid rgba(255,255,255,.95);
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,1), inset 0 0 0 1px rgba(226,232,240,.5);
  transition: transform .5s var(--ease-spring);
}
.shot-frame::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 2;
  background: linear-gradient(120deg, rgba(255,255,255,.32) 0%, rgba(255,255,255,.07) 15%, transparent 24%); opacity: .6; }
.shot-frame:hover { transform: translateY(-6px); }
.shot-frame img { position: relative; z-index: 1; display: block; width: 100%; height: auto; border-radius: 14px; box-shadow: 0 10px 26px rgba(30,41,59,.12); }
.dot-live { width: 8px; height: 8px; border-radius: 50%; background: var(--success);
  box-shadow: 0 0 0 0 rgba(22,163,74,.5); animation: pulse 2s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(22,163,74,.45)} 70%{box-shadow:0 0 0 8px rgba(22,163,74,0)} 100%{box-shadow:0 0 0 0 rgba(22,163,74,0)} }

.scroll-hint { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--border); border-radius: 999px; }
.scroll-hint span { position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; border-radius: 99px;
  background: var(--blue); transform: translateX(-50%); animation: scrolldot 1.8s var(--ease-soft) infinite; }
@keyframes scrolldot { 0%{opacity:0; transform:translate(-50%,0)} 30%{opacity:1} 100%{opacity:0; transform:translate(-50%,14px)} }

/* ---------- 投屏特色 ---------- */
.mirror { background: linear-gradient(180deg, #fff, var(--bg-soft) 55%, #fff); }
.mirror-grid { max-width: var(--maxw); margin: 0 auto; display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 80px); align-items: center; }

.mirror-visual { position: relative; display: flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 340px; }
.phone { position: relative; width: 168px; height: 340px; border-radius: 30px; background: #0f172a;
  padding: 10px; box-shadow: var(--shadow-lg); flex: none;
  animation: phoneFloat 6s var(--ease-soft) infinite; }
@keyframes phoneFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
.phone-notch { position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 16px; background: #0f172a; border-radius: 0 0 12px 12px; z-index: 2; }
.phone-screen { position: relative; width: 100%; height: 100%; border-radius: 22px; overflow: hidden;
  background: linear-gradient(160deg, #dbeafe, #ede9fe 60%, #fce7f3); }
.ps-status { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px 6px;
  font-size: 11px; font-weight: 700; color: var(--blue-dark); }
.ps-time { color: var(--text-dim); }
.ps-apps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 16px; }
.ps-apps i { aspect-ratio: 1; border-radius: 14px; background: rgba(255,255,255,.72);
  box-shadow: var(--shadow-sm); }
.ps-apps i:nth-child(odd) { background: rgba(255,255,255,.9); }
.ps-dock { position: absolute; bottom: 14px; left: 12px; right: 12px; display: flex; justify-content: space-around;
  padding: 10px; background: rgba(255,255,255,.72); border-radius: 18px; }
.ps-dock i { width: 30px; height: 30px; border-radius: 10px; background: rgba(255,255,255,.95); box-shadow: var(--shadow-sm); }
.cast-beam { position: absolute; inset: 0; background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,.5) 50%, transparent 60%);
  transform: translateX(-100%); animation: sweep 3.4s var(--ease) infinite; }
@keyframes sweep { 0%{transform:translateX(-100%)} 60%,100%{transform:translateX(100%)} }

.cast-link { flex: none; }
.beam-line { animation: dash 1.2s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -24; } }

.mini-monitor { flex: none; display: flex; flex-direction: column; align-items: center; }
.mm-screen { width: 210px; height: 132px; border-radius: 14px; border: 3px solid #0f172a;
  background: linear-gradient(160deg, #eff4ff, #f5f0ff); display: flex; align-items: center; justify-content: center;
  gap: 8px; font-size: 12.5px; font-weight: 600; color: var(--blue-dark); box-shadow: var(--shadow-lg);
  animation: phoneFloat 6.5s var(--ease-soft) infinite; }
.mm-stand { width: 60px; height: 12px; background: #0f172a; border-radius: 0 0 8px 8px; margin-top: 2px; }

.mirror-points { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.mp { position: relative; padding: 24px; border-radius: 20px; overflow: hidden;
  background: linear-gradient(155deg, #ffffff 0%, #f4f7ff 100%);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: 0 10px 24px rgba(30,41,59,.07), inset 0 1px 0 rgba(255,255,255,1), inset 0 0 0 1px rgba(226,232,240,.55);
  transition: transform .4s var(--ease-spring), box-shadow .4s var(--ease); }
.mp::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,.22) 22%, transparent 42%); opacity: .7; }
.mp > * { position: relative; z-index: 1; }
.mp:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(37,99,235,.14), inset 0 1px 0 rgba(255,255,255,1), inset 0 0 0 1px rgba(219,230,255,.8); }
/* 液态玻璃 emoji 徽章（静态、无持续动画，轻量） */
.mp-ic { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 14px;
  border-radius: 18px; font-size: 27px; line-height: 1;
  background: linear-gradient(150deg, #ffffff, #e9eeff);
  border: 1px solid rgba(255,255,255,.95);
  box-shadow: 0 8px 18px rgba(37,99,235,.15), inset 0 2px 2px rgba(255,255,255,1), inset 0 -6px 12px rgba(37,99,235,.06);
  filter: drop-shadow(0 3px 4px rgba(30,41,59,.1));
  transition: transform .45s var(--ease-jelly); }
.mp:hover .mp-ic { transform: translateY(-3px) rotate(-5deg) scale(1.08); }
.mp h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 6px; }
.mp p { font-size: 14px; color: var(--text-dim); }

/* ---------- 功能分类 ---------- */
.features { max-width: none; position: relative; overflow: hidden; }
/* 区块光晕缓慢漂移（单元素、仅 transform/opacity，轻量） */
.feat-glow { position: absolute; top: 8%; left: 6%; width: 420px; height: 420px; pointer-events: none;
  background: radial-gradient(circle, rgba(59,130,246,.10), rgba(124,58,237,.05) 55%, transparent 70%);
  animation: featureGlowDrift 10s ease-in-out infinite alternate; will-change: transform, opacity; }
@keyframes featureGlowDrift {
  from { transform: translate(0, 0) scale(1); opacity: .55; }
  to   { transform: translate(18%, 12%) scale(1.15); opacity: 1; }
}
.filter-bar { max-width: var(--maxw); margin: 0 auto 36px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip { padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; cursor: pointer;
  color: var(--text-dim); background: linear-gradient(150deg, #ffffff, #f1f4ff);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: inset 0 1px 0 rgba(255,255,255,1), inset 0 0 0 1px rgba(226,232,240,.6), 0 3px 8px rgba(30,41,59,.05);
  transition: color .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), transform .35s var(--ease-spring); }
.chip:hover { transform: translateY(-2px); border-color: var(--blue); color: var(--blue-dark); }
.chip.active { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-glow));
  border-color: transparent; box-shadow: 0 8px 18px rgba(37, 99, 235, .26); }

.feature-grid { max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
/* 液态玻璃卡片（不用 backdrop-filter，靠渐变+高光，手机也不卡） */
.f-card { position: relative; padding: 26px; border-radius: 22px;
  background: linear-gradient(155deg, #ffffff 0%, #f4f7ff 100%);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow:
    0 10px 26px rgba(30,41,59,.07),
    inset 0 1px 0 rgba(255,255,255,1),
    inset 0 0 0 1px rgba(226,232,240,.55);
  transition: transform .45s var(--ease-spring), box-shadow .45s var(--ease);
  overflow: hidden; }
/* 顶部斜向镜面高光条 */
.f-card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,.25) 20%, transparent 40%);
  opacity: .7; }
.f-card::before { content: ""; position: absolute; inset: 0; opacity: 0; z-index: 1;
  background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 0%), rgba(37,99,235,.08), transparent 55%);
  transition: opacity .4s var(--ease); pointer-events: none; }
.f-card:hover { transform: translateY(-6px); box-shadow: 0 20px 44px rgba(37,99,235,.14), inset 0 1px 0 rgba(255,255,255,1), inset 0 0 0 1px rgba(219,230,255,.8); }
.f-card:hover::before { opacity: 1; }
.f-card > * { position: relative; z-index: 2; }
.f-card.is-hidden { display: none; }
.f-card.filtering { animation: cardIn .6s var(--ease-jelly) both; }
@keyframes cardIn { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }

.f-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.f-ic { flex: none; width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  color: var(--blue-dark); background: #eff4ff; }
.f-ic svg { width: 24px; height: 24px; }
.f-cat { font-size: 12px; font-weight: 600; color: var(--text-muted); letter-spacing: .02em; }
.f-title { font-size: 18px; font-weight: 600; }
.f-desc { font-size: 14px; color: var(--text-dim); margin-bottom: 14px; }
.f-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.f-list li { position: relative; padding-left: 22px; font-size: 13.5px; color: var(--text-dim); }
.f-list li::before { content: ""; position: absolute; left: 4px; top: 8px; width: 8px; height: 8px; border-radius: 3px;
  background: linear-gradient(135deg, var(--blue), var(--blue-glow)); }
.f-card[data-cat="mirror"] .f-ic { color: var(--purple); background: #f5f0ff; }
.f-card[data-cat="mirror"] .f-list li::before { background: linear-gradient(135deg, var(--purple), var(--magenta)); }
.f-card[data-cat="security"] .f-ic { color: var(--success); background: #ecfdf3; }

/* ---------- 结尾 CTA ---------- */
.cta-final { max-width: var(--maxw); margin: 0 auto; }
.cta-card { text-align: center; padding: clamp(40px, 7vw, 72px) clamp(24px, 5vw, 64px);
  border-radius: var(--r-lg); color: #fff; position: relative; overflow: hidden;
  background: linear-gradient(130deg, var(--blue-dark), var(--blue) 45%, var(--purple));
  box-shadow: 0 30px 70px rgba(37, 99, 235, .3); }
.cta-card::after { content: ""; position: absolute; top: -60%; right: -10%; width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,.18), transparent 60%); animation: float2 18s var(--ease-soft) infinite; }
.cta-card h2 { font-size: clamp(24px, 3.6vw, 36px); font-weight: 600; margin-bottom: 12px; position: relative; }
.cta-card p { color: rgba(255,255,255,.86); margin-bottom: 26px; position: relative; }
.cta-card .btn-primary { position: relative; color: var(--blue-dark); background: #fff; box-shadow: 0 12px 28px rgba(0,0,0,.18); }
.cta-card .btn-primary:hover { transform: translateY(-2px); }

/* ---------- 页脚 ---------- */
.footer { padding: 40px clamp(18px, 4vw, 48px); border-top: 1px solid var(--border-soft); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 14px; }
.footer-note { color: var(--text-muted); font-size: 13.5px; }

/* ---------- 滚动揭示动画 ----------
   JS 双向渐隐渐显：进入视口 Q 弹渐显，离开视口渐隐，全浏览器一致生效 */
.reveal { opacity: 0; transform: translateY(28px) scale(.94); transition: opacity .5s ease-out, transform .8s var(--ease-jelly); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- 响应式 ---------- */
@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero-inner { max-width: none; margin: 0 auto; }
  .hero-sub { margin-inline: auto; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-visual { margin-top: 8px; }
  .shot-frame { transform: none; animation: none; }
  .shot-frame:hover { transform: translateY(-4px); }
  .mirror-grid { grid-template-columns: 1fr; }
  .mirror-visual { order: 2; }
}
@media (max-width: 720px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav.open { height: auto; flex-wrap: wrap; padding-bottom: 14px; }
  .nav.open .nav-links { display: flex; flex-direction: column; width: 100%; margin: 8px 0 0; }
  .nav.open .nav-links a { padding: 12px 14px; }
  .nav.open .nav-cta { display: inline-flex; width: 100%; justify-content: center; margin: 8px 0 0; }
  .mirror-points { grid-template-columns: 1fr; }
  .mirror-visual { flex-direction: column; }
  .cast-link svg { transform: rotate(90deg); }
}

/* ---------- 尊重减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-visual { opacity: 1; }
}