/* ============================================================
   爱点名 · 官网设计系统
   与 App (Expo / NativeWind) 同源：Material 3 token + 胶囊语言
   ============================================================ */

:root {
  /* — 色彩（与 app/tailwind.config.js 完全一致） — */
  --primary: #a13f20;
  --primary-container: #f77e5b;
  --on-primary: #ffffff;
  --on-primary-container: #6c1a00;
  --secondary: #4e6073;
  --secondary-container: #cfe2f9;
  --tertiary: #7a4f71;
  --background: #faf9f6;
  --on-background: #1a1c1a;
  --surface: #faf9f6;
  --on-surface: #1a1c1a;
  --surface-variant: #e3e2e0;
  --on-surface-variant: #554241;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f4f3f1;
  --surface-container: #efeeeb;
  --surface-container-high: #e9e8e5;
  --surface-container-highest: #e3e2e0;
  --outline: #887271;
  --outline-variant: #dbc0bf;
  --error: #ba1a1a;

  --font-sans: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei",
    "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC",
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.25, 1);

  --shadow-card: 0 4px 20px rgba(26, 28, 26, 0.06);
  --shadow-lift: 0 20px 44px -14px rgba(26, 28, 26, 0.14);
  --shadow-primary: 0 4px 12px rgba(161, 63, 32, 0.22);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--on-background);
  line-height: 1.7;
  font-size: 15.5px;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; cursor: pointer; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }

::selection { background: rgba(247, 126, 91, 0.28); }

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

.tnum { font-variant-numeric: tabular-nums; }

/* — 环境背景：暖色柔光 + 细点阵（克制） — */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(560px 420px at 8% 12%, rgba(247, 126, 91, 0.09), transparent 70%),
    radial-gradient(640px 480px at 94% 88%, rgba(78, 96, 115, 0.06), transparent 70%);
}

.ambient-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(136, 114, 113, 0.16) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 20%, transparent 75%);
}

/* ============ 导航 ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(136, 114, 113, 0.12);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

.brand-logo { width: 32px; height: 32px; }

.brand small {
  font-weight: 500;
  color: var(--on-surface-variant);
  font-size: 0.75rem;
  margin-left: 2px;
  letter-spacing: 0.04em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.nav-links a {
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active { color: var(--primary); }

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width 0.35s var(--ease-out-expo);
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* 右上角下载按钮（图标式，始终可见） */
.nav-cta {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(136, 114, 113, 0.16);
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.2s var(--ease-out-expo);
}

.nav-cta:hover {
  border-color: rgba(136, 114, 113, 0.4);
  background: rgba(161, 63, 32, 0.06);
}

.nav-cta:active { transform: scale(0.94); }
.nav-cta svg { width: 18px; height: 18px; }

/* 汉堡按钮（仅移动端） */
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(136, 114, 113, 0.16);
  background: var(--surface-container-lowest);
  align-items: center;
  justify-content: center;
  color: var(--on-background);
  flex-shrink: 0;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.nav-burger:hover { border-color: rgba(136, 114, 113, 0.4); }
.nav-burger svg { width: 20px; height: 20px; }

/* 移动端下拉菜单 */
.nav-dropdown { display: none; }

@keyframes drop-in {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ 下载按钮组（Hero 与 CTA 共用同一组件） ============ */
.dl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.dl-btn {
  flex: 1 1 160px;
  max-width: 196px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 12px;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 0.22s var(--ease-out-expo), box-shadow 0.25s ease,
    background 0.25s ease, border-color 0.25s ease;
}

/* 按钮 + 下方版本小字（纵向组） */
.dl-item {
  flex: 1 1 160px;
  max-width: 196px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.dl-item .dl-btn {
  flex: none;
  width: 100%;
  max-width: none;
}

.dl-sub {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  text-align: center;
}

.dl-btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-primary);
}

.dl-btn-primary:hover {
  background: #8d371b;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(161, 63, 32, 0.3);
}

.dl-btn-primary:active { transform: translateY(0) scale(0.98); }

.dl-btn-secondary {
  background: var(--surface-container-low);
  color: var(--on-surface);
  border: 1px solid rgba(136, 114, 113, 0.18);
}

.dl-btn-secondary[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ============ 通用 reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.85s var(--ease-out-expo), transform 0.85s var(--ease-out-expo);
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ 区块头（编辑式左对齐） ============ */
.section { padding: 44px 0; }

.section-head { max-width: 620px; margin-bottom: 34px; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.14em;
  margin-bottom: 14px;
}

.section-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.section-title {
  font-size: clamp(1.625rem, 3.6vw, 2.375rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.section-desc {
  margin-top: 14px;
  color: var(--on-surface-variant);
  font-size: 1rem;
  line-height: 1.8;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 56px 0 72px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--surface-container-low);
  border: 1px solid rgba(136, 114, 113, 0.13);
  color: var(--on-surface-variant);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.125rem, 5.6vw, 3.625rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.015em;
}

.hero-title .accent { color: var(--primary); position: relative; white-space: nowrap; }

.hero-title .accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.24em;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(247, 126, 91, 0.4), rgba(247, 126, 91, 0.08));
  z-index: -1;
  opacity: 0;
  animation: accent-in 0.7s ease forwards;
  animation-delay: 1.4s;
}

@keyframes accent-in { to { opacity: 1; } }

/* 逐字温情入场 */
.hero-title .ch {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.32em);
  filter: blur(5px);
  animation: ch-in 0.8s var(--ease-out-expo) forwards;
  animation-delay: calc(0.25s + var(--i) * 0.09s);
}

@keyframes ch-in {
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.hero-subtitle {
  margin-top: 22px;
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  color: var(--on-surface-variant);
  max-width: 500px;
  line-height: 1.85;
}

.hero-subtitle strong { color: var(--on-background); font-weight: 700; }

.hero-actions {
  margin-top: 34px;
}

/* — Hero 右侧视觉 — */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 440px;
}

.hero-visual .ripple {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(219, 192, 191, 0.55);
  pointer-events: none;
}

.hero-visual .ripple.r1 { width: 380px; height: 380px; }
.hero-visual .ripple.r2 { width: 510px; height: 510px; border-style: dashed; opacity: 0.6; }

.hero-visual .glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 126, 91, 0.2), transparent 68%);
  animation: breathe 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.75; }
  50% { transform: scale(1.08); opacity: 1; }
}

/* ============ App 任务卡片复刻（1:1 还原 TaskCard.tsx） ============ */
.card-preview {
  position: relative;
  width: 300px;
  z-index: 2;
  animation: card-float 7s ease-in-out infinite;
}

@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

.card-stack { position: relative; width: 100%; }

.card-stack::before,
.card-stack::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 26px;
  border-radius: 12px;
  background: var(--surface-container-high);
  z-index: 0;
}

.card-stack::before { top: -10px; transform: scale(0.94); opacity: 0.4; }
.card-stack::after { top: -5px; transform: scale(0.97); opacity: 0.62; }

.task-card {
  position: relative;
  z-index: 1;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: border-glow 2.5s ease-in-out infinite;
}

/* 与 App 一致：border 0.15→0.28，辉光克制 */
@keyframes border-glow {
  0%, 100% { box-shadow: var(--shadow-card), 0 0 0 1px rgba(161, 63, 32, 0.15); }
  50% { box-shadow: var(--shadow-card), 0 3px 8px rgba(161, 63, 32, 0.05), 0 0 0 1px rgba(161, 63, 32, 0.28); }
}

.task-card-status {
  padding: 12px 14px 0;
  display: flex;
  justify-content: flex-end;
}

.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(161, 63, 32, 0.08);
  color: var(--primary);
  font-size: 0.6875rem;
  font-weight: 700;
}

.status-tag .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

.task-card-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4px 18px 12px;
  gap: 12px;
}

.task-avatar-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  padding: 2.5px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  flex-shrink: 0;
}

.task-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(255, 248, 246, 0.96);
  border: 2px solid #fff;
  display: grid;
  place-items: center;
  color: var(--primary);
  font-weight: 800;
  font-size: 1.375rem;
}

.task-names {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--on-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.task-names .arrow { color: var(--secondary); opacity: 0.45; font-weight: 500; }

.task-time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--secondary);
  opacity: 0.8;
  margin-top: -7px;
}

.task-time svg { width: 12px; height: 12px; }

.task-content {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  background: rgba(233, 232, 229, 0.45);
  border: 1px solid rgba(136, 114, 113, 0.08);
}

.task-content p {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--on-surface);
  line-height: 1.65;
}

/* 语音气泡：圆形播放钮 + 声波竖条（STATIC_BARS 与 App 一致） */
.voice-bubble {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 14px;
  background: var(--surface-container-low);
}

.voice-play {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.voice-play svg { width: 15px; height: 15px; color: #fff; margin-left: 2px; }

.voice-bars {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 3px;
  height: 22px;
}

.voice-bars i {
  width: 3px;
  border-radius: 1.5px;
  background: rgba(161, 63, 32, 0.35);
}

.voice-bars.live i {
  background: var(--primary);
  transform-origin: bottom;
  animation: wave-bar 0.6s ease-in-out infinite alternate;
}

/* 播放按钮可点击 */
button.voice-play {
  cursor: pointer;
  transition: transform 0.2s var(--ease-out-expo), background 0.25s ease;
}

button.voice-play:hover { transform: scale(1.08); }
button.voice-play:active { transform: scale(0.96); }

.voice-bars.live i:nth-child(2) { animation-delay: 0.1s; }
.voice-bars.live i:nth-child(3) { animation-delay: 0.2s; }
.voice-bars.live i:nth-child(4) { animation-delay: 0.3s; }
.voice-bars.live i:nth-child(5) { animation-delay: 0.4s; }
.voice-bars.live i:nth-child(6) { animation-delay: 0.15s; }
.voice-bars.live i:nth-child(7) { animation-delay: 0.35s; }
.voice-bars.live i:nth-child(8) { animation-delay: 0.25s; }

@keyframes wave-bar {
  from { transform: scaleY(0.3); }
  to { transform: scaleY(1); }
}

.voice-duration {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary);
  flex-shrink: 0;
}

.ai-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(161, 63, 32, 0.08), rgba(247, 126, 91, 0.1));
  border: 1px solid rgba(161, 63, 32, 0.12);
  color: var(--primary);
  font-size: 0.6875rem;
  font-weight: 700;
}

.task-voice-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.task-voice-row .voice-bubble { flex: 1; min-width: 0; }

.task-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 0 14px 10px;
}

.task-btn-primary {
  flex: 1;
  height: 42px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: var(--shadow-primary);
}

.task-btn-primary svg { width: 16px; height: 16px; }

.task-btn-secondary {
  height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--surface-container-low);
  color: var(--secondary);
  font-size: 0.8125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 5px;
}

.task-btn-secondary svg { width: 14px; height: 14px; }

.task-card-footer {
  padding: 9px;
  border-top: 1px solid rgba(136, 114, 113, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 0.6875rem;
  color: var(--secondary);
  opacity: 0.7;
}

/* — 卡片交互态（前端演示） — */
.task-card.done { animation: none; }

.status-tag.is-done {
  background: var(--surface-container);
  color: var(--secondary);
}

.task-btn-primary { cursor: pointer; transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, transform 0.2s var(--ease-out-expo); }
.task-btn-primary:not(.confirmed):hover { background: #8d371b; }

.task-btn-primary.confirmed {
  background: var(--surface-container);
  color: var(--secondary);
  box-shadow: none;
  cursor: default;
}

.task-btn-primary.confirmed svg { color: var(--primary); }

.task-btn-secondary { cursor: pointer; transition: background 0.25s ease, color 0.25s ease; }
.task-btn-secondary:hover { background: var(--surface-container-high); }
.task-btn-secondary.active { background: rgba(161, 63, 32, 0.1); color: var(--primary); }

/* 对勾描边动画 */
.check-draw {
  stroke-dasharray: 26;
  stroke-dashoffset: 26;
  animation: check-draw 0.5s var(--ease-out-expo) 0.05s forwards;
}

@keyframes check-draw { to { stroke-dashoffset: 0; } }

/* 回复输入区 */
.task-reply {
  width: 100%;
  padding: 0 14px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease-out-expo), opacity 0.3s ease;
}

.task-reply.open {
  max-height: 220px;
  opacity: 1;
  padding: 0 14px 12px;
}

.reply-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-container-low);
  border: 1px solid rgba(136, 114, 113, 0.16);
  border-radius: 999px;
  padding: 5px 6px 5px 16px;
}

.reply-box:focus-within { border-color: rgba(161, 63, 32, 0.4); }

.reply-box input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  outline: none;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--on-surface);
}

.reply-box input::placeholder { color: var(--on-surface-variant); opacity: 0.6; }

.reply-send {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform 0.2s var(--ease-out-expo), opacity 0.2s ease;
}

.reply-send:hover { transform: scale(1.08); }
.reply-send:disabled { opacity: 0.35; transform: none; cursor: default; }
.reply-send svg { width: 15px; height: 15px; }

/* 已发送气泡 */
.reply-sent { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; }

.reply-sent .bubble {
  max-width: 100%;
  background: var(--primary);
  color: #fff;
  border-radius: 14px;
  border-bottom-right-radius: 5px;
  padding: 9px 14px;
  font-size: 0.875rem;
  line-height: 1.6;
  word-break: break-word;
  animation: bubble-in 0.45s var(--ease-out-expo);
}

@keyframes bubble-in {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

.reply-sent .sent-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.6875rem;
  color: var(--secondary);
}

.reply-sent .sent-meta .sent-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.reply-sent .sent-meta .sent-tag svg { width: 12px; height: 12px; color: var(--primary); }

.reply-again {
  font-size: 0.6875rem;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.reply-again:hover { text-decoration: underline; }

/* — 漂浮小卡（克制，仅 2 枚） — */
.float-card {
  position: absolute;
  padding: 11px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 12px 32px rgba(26, 28, 26, 0.1);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--on-background);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
}

.float-card svg { width: 17px; height: 17px; color: var(--primary); flex-shrink: 0; }

.float-card.a { top: 58px; right: -6px; animation: float-y 5s ease-in-out infinite; }
.float-card.b { bottom: 64px; left: -14px; animation: float-y 6.5s ease-in-out infinite reverse; }

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* ============ 引言条（声波 + 一句话） ============ */
.quote-strip {
  padding: 34px 0;
  border-top: 1px solid rgba(136, 114, 113, 0.1);
  border-bottom: 1px solid rgba(136, 114, 113, 0.1);
}

.quote-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  flex-wrap: wrap;
  text-align: center;
}

.quote-text {
  font-size: clamp(1.0625rem, 2.2vw, 1.375rem);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.quote-text em { font-style: normal; color: var(--primary); }

.wave-deco {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
  flex-shrink: 0;
}

.wave-deco i {
  width: 3px;
  border-radius: 1.5px;
  background: rgba(161, 63, 32, 0.3);
}

/* ============ 时间线（一天的点名） ============ */
.timeline { position: relative; max-width: 760px; }

.tl-item {
  display: grid;
  grid-template-columns: 92px 28px 1fr;
  gap: 0 18px;
  position: relative;
  padding-bottom: 30px;
}

.tl-item:last-child { padding-bottom: 0; }

.tl-time {
  text-align: right;
  padding-top: 14px;
}

.tl-time .t {
  display: block;
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.tl-time .p {
  display: block;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  margin-top: 2px;
}

.tl-rail { position: relative; display: flex; justify-content: center; }

.tl-rail::before {
  content: "";
  position: absolute;
  top: 34px;
  bottom: -8px;
  width: 0;
  border-left: 2px dashed rgba(136, 114, 113, 0.25);
}

.tl-item:last-child .tl-rail::before { display: none; }

.tl-rail .node {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--background);
  border: 3px solid var(--primary);
  flex-shrink: 0;
}

.tl-item.is-wait .tl-rail .node { border-color: rgba(136, 114, 113, 0.45); }

.tl-card {
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-card);
  padding: 16px 20px 15px;
  transition: transform 0.35s var(--ease-out-expo), box-shadow 0.35s ease;
}

.tl-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.tl-item.is-live .tl-card {
  animation: border-glow 2.5s ease-in-out infinite;
}

.tl-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.tl-names {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 800;
  font-size: 0.9375rem;
  min-width: 0;
  flex: 1;
}

.tl-names > span:not(.arrow):not(.mini-avatar) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 状态标签防换行 */
.status-tag,
.st,
.tl-voice,
.ai-chip {
  white-space: nowrap;
  flex-shrink: 0;
}

.tl-names .mini-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 800;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.tl-names .arrow { color: var(--secondary); opacity: 0.45; font-weight: 500; }

.tl-text {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--on-surface);
}

.tl-foot {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* 状态胶囊（与 App 四态一致） */
.st {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
}

.st svg { width: 12px; height: 12px; }

.st-done { background: var(--surface-container); color: var(--secondary); }
.st-live { background: rgba(161, 63, 32, 0.08); color: var(--primary); }
.st-wait { background: var(--surface-container); color: var(--on-surface-variant); }

.st-live .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

.tl-voice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 6px;
  border-radius: 999px;
  background: var(--surface-container-low);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary);
}

.tl-voice .vp {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.tl-voice .vp svg { width: 9px; height: 9px; color: #fff; margin-left: 1px; }

.tl-voice .vb { display: flex; align-items: center; gap: 2.5px; height: 14px; }
.tl-voice .vb i { width: 2.5px; border-radius: 1px; background: rgba(161, 63, 32, 0.35); }

/* ============ 功能网格 ============ */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.feature-card {
  position: relative;
  padding: 22px 22px 20px;
  border-radius: 20px;
  background: var(--surface-container-lowest);
  border: 1px solid var(--surface-variant);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s ease, border-color 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--outline-variant);
}

.feature-card .num {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 0.8125rem;
  font-weight: 800;
  color: rgba(161, 63, 32, 0.3);
  letter-spacing: 0.08em;
}

.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: rgba(161, 63, 32, 0.08);
  color: var(--primary);
}

.feature-icon svg { width: 21px; height: 21px; }

.feature-title {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.feature-text {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

/* ============ 流程 ============ */
.how-section {
  background: linear-gradient(180deg, transparent, rgba(161, 63, 32, 0.03), transparent);
}

.how-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  counter-reset: step;
  position: relative;
}

.how-card {
  position: relative;
  padding: 24px 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-card);
}

.how-card::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.2px rgba(161, 63, 32, 0.25);
}

.how-icon {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  box-shadow: var(--shadow-primary);
}

.how-icon svg { width: 21px; height: 21px; }

.how-title { font-size: 1.0625rem; font-weight: 800; margin-bottom: 6px; }

.how-text {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* ============ 下载 CTA ============ */
.cta { padding: 72px 0 96px; }

.cta-panel {
  position: relative;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
  padding: 72px 32px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}

.cta-panel .ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(219, 192, 191, 0.7);
  pointer-events: none;
}

.cta-panel .ring.a { width: 220px; height: 220px; top: -90px; left: -70px; }
.cta-panel .ring.b { width: 180px; height: 180px; bottom: -80px; right: -50px; }

.cta-logo { width: 64px; height: 64px; margin: 0 auto 22px; }

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.cta-desc {
  margin: 16px auto 36px;
  max-width: 480px;
  color: var(--on-surface-variant);
  font-size: 1rem;
  line-height: 1.8;
}

.cta-actions .dl-actions { justify-content: center; }

/* ============ 页脚 ============ */
.footer {
  border-top: 1px solid rgba(136, 114, 113, 0.12);
  padding: 30px 0 38px;
  color: var(--on-surface-variant);
  font-size: 0.8125rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--on-background); font-size: 0.9375rem; }
.footer-brand svg { width: 24px; height: 24px; }
.footer-brand small { font-weight: 500; color: var(--on-surface-variant); }

.footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer-links a { transition: color 0.25s ease; }
.footer-links a:hover { color: var(--primary); }

.footer-copy { margin-top: 10px; opacity: 0.7; }

.footer-icp {
  margin-top: 12px;
  font-size: 0.75rem;
  opacity: 0.75;
}

.footer-icp a { transition: color 0.25s ease; }
.footer-icp a:hover { color: var(--primary); opacity: 1; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer-links a { transition: color 0.25s ease; }
.footer-links a:hover { color: var(--primary); }

/* ============================================================
   功能页（features.html）专属
   ============================================================ */

.page-head { padding: 64px 0 8px; }

.page-head .section-title { max-width: 640px; }
.page-head .section-desc { max-width: 560px; }

.toc-chips {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.toc-chips a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface-container-low);
  border: 1px solid rgba(136, 114, 113, 0.14);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  transition: all 0.25s ease;
}

.toc-chips a:hover {
  background: rgba(161, 63, 32, 0.08);
  border-color: rgba(161, 63, 32, 0.2);
  color: var(--primary);
}

.toc-chips .n { font-size: 0.6875rem; font-weight: 800; color: rgba(161, 63, 32, 0.45); }

/* 左右分栏区块 */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.feat-points { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }

.feat-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.feat-points li svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.feat-points li strong { color: var(--on-background); }

/* 演示卡片（通用玻璃容器） */
.demo-card {
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.demo-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-surface-variant);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

/* 声音资产行 */
.voice-asset {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface-container-low);
}

.voice-asset + .voice-asset { margin-top: 12px; }

.voice-asset .va-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.voice-asset .va-icon svg { width: 18px; height: 18px; color: #fff; }

.voice-asset .va-body { flex: 1; min-width: 0; }

.voice-asset .va-name {
  font-size: 0.9375rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.voice-asset .va-meta { font-size: 0.75rem; color: var(--on-surface-variant); margin-top: 2px; }

.voice-asset .va-bars { display: flex; align-items: center; gap: 2.5px; height: 18px; flex-shrink: 0; }
.voice-asset .va-bars i { width: 2.5px; border-radius: 1px; background: rgba(161, 63, 32, 0.3); }

/* 方言网格（与 DialectPicker 胶囊一致） */
.dialect-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dialect-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  background: rgba(247, 126, 91, 0.14);
  border: 1px solid rgba(161, 63, 32, 0.18);
  color: var(--primary);
}

.dialect-chip.default {
  background: var(--surface-container);
  border-color: rgba(136, 114, 113, 0.12);
  color: var(--secondary);
}

/* 对比卡（AI 文案润色） */
.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: stretch;
}

.compare-panel {
  border-radius: 16px;
  padding: 20px;
}

.compare-panel .cp-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-before {
  background: var(--surface-container);
  border: 1px solid rgba(136, 114, 113, 0.1);
}

.compare-before .cp-label { color: var(--on-surface-variant); }
.compare-before p { font-size: 0.9375rem; color: var(--on-surface-variant); line-height: 1.7; }

.compare-after {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(161, 63, 32, 0.14);
  box-shadow: var(--shadow-card);
}

.compare-after .cp-label { color: var(--primary); }
.compare-after p { font-size: 1rem; font-weight: 700; color: var(--on-surface); line-height: 1.75; }

.compare-arrow {
  display: grid;
  place-items: center;
  color: var(--primary);
}

.compare-arrow svg { width: 26px; height: 26px; }

/* 频率胶囊 */
.freq-row { display: flex; flex-wrap: wrap; gap: 10px; }

.freq-chip {
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
  background: var(--surface-container-low);
  border: 1px solid rgba(136, 114, 113, 0.14);
  color: var(--on-surface-variant);
}

.freq-chip.on {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}

/* 聊天演示 */
.chat-demo { display: flex; flex-direction: column; gap: 14px; }

.chat-row { display: flex; }
.chat-row.in { justify-content: flex-start; }
.chat-row.out { justify-content: flex-end; }

.chat-bubble {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.875rem;
  line-height: 1.65;
}

.chat-row.in .chat-bubble {
  background: var(--surface-container-low);
  border-bottom-left-radius: 6px;
  color: var(--on-surface);
}

.chat-row.out .chat-bubble {
  background: var(--primary);
  border-bottom-right-radius: 6px;
  color: #fff;
  font-weight: 600;
}

.chat-ack {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(161, 63, 32, 0.08);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 700;
}

.chat-ack svg { width: 15px; height: 15px; }

/* 双通道卡 */
.duo-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }

.duo-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  border-radius: 18px;
  background: var(--surface-container-lowest);
  border: 1px solid var(--surface-variant);
}

.duo-card .d-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(161, 63, 32, 0.08);
  color: var(--primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.duo-card .d-icon svg { width: 21px; height: 21px; }

.duo-card h4 { font-size: 1rem; font-weight: 800; margin-bottom: 6px; }
.duo-card p { font-size: 0.875rem; color: var(--on-surface-variant); line-height: 1.7; }

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .section { padding: 68px 0; }
  .section-head { margin-bottom: 44px; }
  .hero { padding: 88px 0 104px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .how-list { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .duo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: center; }
  .nav-right { gap: 28px; }
}

@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: 40px; }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr 1fr; gap: 64px; }
  .split.reverse > .split-visual { order: -1; }
  .compare { grid-template-columns: 1fr 48px 1fr; gap: 0; }
}

@media (max-width: 959px) {
  .hero-visual { min-height: 420px; }
  .float-card.b { left: 0; }
  .compare-arrow svg { transform: rotate(90deg); }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-burger { display: inline-flex; }
  .nav-cta { width: 38px; height: 38px; }

  .nav-dropdown {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(250, 249, 246, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(136, 114, 113, 0.12);
    padding: 8px 4vw 14px;
    box-shadow: 0 20px 40px -18px rgba(26, 28, 26, 0.15);
    animation: drop-in 0.28s var(--ease-out-expo);
  }

  .nav-dropdown[hidden] { display: none; }

  .nav-dropdown a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 12px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--on-surface-variant);
    border-radius: 12px;
  }

  .nav-dropdown a:hover,
  .nav-dropdown a.active {
    color: var(--primary);
    background: rgba(161, 63, 32, 0.06);
  }

  .nav-dropdown a + a { margin-top: 2px; }

  .tl-item { grid-template-columns: 64px 24px 1fr; gap: 0 12px; }
  .tl-time .t { font-size: 1.0625rem; }
  .float-card.a { right: 0; }
  .card-preview { width: 270px; }
  .hero-visual .ripple.r2 { display: none; }
  .cta-panel { padding: 52px 22px; }
}

@media (max-width: 400px) {
  .card-preview { width: 250px; }
  .btn { padding: 0 20px; }
}

/* ============ 无障碍 ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}