/* ============================================================
   出门透气 · 官网样式
   架构：Ant Design v5 Design Token 规范（令牌层 → 组件层）
   品牌色板：呼吸橙 #FF6622（与注册商标一致）· 晨雾米白打底
   ============================================================ */

/* ============================================================
   1. Design Tokens（Ant Design v5 命名规范）
   ============================================================ */
:root {
  /* ── Brand / Primary ── */
  --colorPrimary: #FF6622;
  --colorPrimaryHover: #FF8A4D;
  --colorPrimaryActive: #E05514;
  --colorPrimaryBg: #FFE9DC;
  --colorPrimaryBgHover: #FFD8C2;
  --colorPrimaryBorder: #FFB28A;

  /* ── Neutral Text ── */
  --colorText: #2B2622;
  --colorTextSecondary: #5F564E;
  --colorTextTertiary: #8A8178;
  --colorTextQuaternary: #B5ACA2;

  /* ── Neutral Background ── */
  --colorBgLayout: #FAF7F2;
  --colorBgContainer: #FFFFFF;
  --colorBgMask: rgba(20, 17, 16, 0.55);
  --colorNightBg: #141110;
  --colorNightCard: #241F1C;
  --colorNightText: #FFF8F2;
  --colorNightTextTertiary: #9B8F84;
  --colorNightBorder: #3D352F;
  --colorNightBody: #E8DFD6;

  /* ── Borders ── */
  --colorBorder: #E8E1D6;
  --colorBorderSecondary: #EFEAE3;

  /* ── Radius ── */
  --borderRadiusSM: 10px;
  --borderRadius: 14px;
  --borderRadiusLG: 20px;
  --borderRadiusXL: 28px;

  /* ── Typography ── */
  --fontSizeSM: 13px;
  --fontSize: 16px;
  --fontSizeLG: 18px;
  --fontSizeXL: 20px;
  --fontSizeHeading3: 22px;
  --fontSizeHeading2: clamp(30px, 4.2vw, 44px);
  --fontSizeHeading1: clamp(44px, 7vw, 76px);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Helvetica Neue", "Roboto", "PingFang SC", sans-serif;

  /* ── Shadows ── */
  --boxShadowTertiary: 0 1px 2px rgba(45, 32, 20, 0.05), 0 8px 24px rgba(45, 32, 20, 0.06);
  --boxShadow: 0 2px 6px rgba(45, 32, 20, 0.06), 0 20px 48px rgba(45, 32, 20, 0.12);
  --boxShadowGlow: 0 10px 28px rgba(255, 102, 34, 0.30);

  /* ── Motion ── */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --fast: 0.15s;
  --dur: 0.3s;

  /* ── Layout ── */
  --nav-h: 72px;

  /* ============================================================
     旧令牌别名（HTML 内联样式 / 历史规则兼容层，勿在新代码使用）
     ============================================================ */
  --primary: var(--colorPrimary);
  --primary-light: var(--colorPrimaryHover);
  --primary-pressed: var(--colorPrimaryActive);
  --primary-tint: var(--colorPrimaryBg);
  --primary-tint-strong: var(--colorPrimaryBgHover);
  --bg-page: var(--colorBgLayout);
  --surface: var(--colorBgContainer);
  --surface-muted: #F3EEE6;
  --surface-hover: #F6F1E9;
  --bg-dark: var(--colorNightBg);
  --text-primary: var(--colorText);
  --text-secondary: var(--colorTextSecondary);
  --text-hint: var(--colorTextTertiary);
  --text-faint: var(--colorTextQuaternary);
  --text-on-dark: var(--colorNightText);
  --border: var(--colorBorderSecondary);
  --border-strong: var(--colorBorder);
  --night-bg: var(--colorNightBg);
  --night-card: var(--colorNightCard);
  --night-border: var(--colorNightBorder);
  --night-hint: var(--colorNightTextTertiary);
  --night-body: var(--colorNightBody);
  --shadow-card: var(--boxShadowTertiary);
  --shadow-lg: var(--boxShadow);
  --radius-md: var(--borderRadius);
  --radius-lg: var(--borderRadiusLG);
  --radius-round: 999px;
}

/* ============================================================
   2. Reset / Base
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* 裁掉装饰元素造成的 1-5px 横向溢出；clip 不产生滚动容器 */
html, body { overflow-x: hidden; overflow-x: clip; }
body {
  font-family: var(--font);
  color: var(--colorText);
  background: var(--colorBgLayout);
  font-size: var(--fontSize);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--nav-h);
}
img { max-width: 100%; display: block; }
h1, h2, h3, .step__title, .safety-card b, .float-card b, .about-card b, .principle b, .compare__head, .belief { text-wrap: balance; }
p, li { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; }
::selection { background: var(--colorPrimaryBgHover); }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--colorPrimary); outline-offset: 3px; border-radius: 6px; }
accent-color { color: var(--colorPrimary); }

.container { width: min(1200px, 100% - 48px); margin-inline: auto; }
.section { padding: 80px 0; }
.section[id], #how { scroll-margin-top: calc(var(--nav-h) + 16px); }
.section__head { max-width: 680px; margin-bottom: 44px; }
.section__head--center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: 0.16em;
  color: var(--colorPrimary);
  margin-bottom: 14px;
}
.section__title {
  font-size: var(--fontSizeHeading2);
  font-weight: 800; line-height: 1.25; letter-spacing: 0.01em;
  margin-bottom: 14px;
}
.section__desc { font-size: var(--fontSize); color: var(--colorTextSecondary); }

@media (min-width: 960px) { .section { padding: 104px 0; } }

/* ============================================================
   3. Button（Ant：primary / default / text + 尺寸 sm lg）
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px;
  padding: 14px 30px;
  font-size: var(--fontSize); font-weight: 600; line-height: 1.2;
  cursor: pointer; border: none;
  transition: background var(--fast) ease, transform var(--fast) ease,
    border-color var(--fast) ease, color var(--fast) ease, box-shadow var(--fast) ease;
}
.btn:active { transform: scale(0.98); }
.btn--primary {
  background: var(--colorPrimary); color: #fff;
  box-shadow: var(--boxShadowGlow);
}
.btn--primary:hover { background: var(--colorPrimaryHover); transform: translateY(-1px); }
.btn--ghost {
  background: transparent; color: var(--colorPrimary);
  border: 1.5px solid var(--colorPrimaryBorder);
}
.btn--ghost:hover { background: var(--colorPrimaryBg); border-color: var(--colorPrimary); }
.btn--lg { padding: 17px 40px; font-size: var(--fontSizeLG); }
.btn--sm { padding: 10px 22px; font-size: 14.5px; }
.btn--on-dark { background: var(--colorPrimary); color: #fff; }
.btn--on-dark:hover { background: var(--colorPrimaryHover); }
.btn.is-placeholder, a.is-placeholder { opacity: 0.75; }

/* ============================================================
   4. Header（玻璃拟态吸顶导航）
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(250, 247, 242, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(232, 225, 214, 0.6);
}
.nav__inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 19px; font-weight: 800; letter-spacing: 0.02em;
}
.nav__logo { height: 30px; width: auto; display: block; }
.nav__links { display: none; align-items: center; gap: 34px; }
.nav__link {
  font-size: 15px; color: var(--colorTextSecondary);
  transition: color var(--fast) ease;
}
.nav__link:hover { color: var(--colorText); }
.nav__link.is-active { color: var(--colorPrimary); font-weight: 600; }
.nav__right { display: flex; align-items: center; gap: 12px; }

.nav__burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; padding: 0 9px;
  background: none; border: none; cursor: pointer; border-radius: var(--borderRadiusSM);
}
.nav__burger span {
  display: block; height: 2px; border-radius: 2px;
  background: var(--colorText);
  transition: transform var(--fast) ease, opacity var(--fast) ease;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__sheet {
  display: none;
  position: absolute; top: var(--nav-h); left: 0; right: 0;
  background: rgba(250, 247, 242, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--colorBorderSecondary);
  padding: 8px 20px 16px;
}
.nav--open .nav__sheet { display: block; }
.nav__sheet a {
  display: block; padding: 13px 4px;
  font-size: 16px; color: var(--colorText);
  border-bottom: 1px solid var(--colorBorderSecondary);
}
.nav__sheet a.is-active { color: var(--colorPrimary); font-weight: 600; }

@media (min-width: 860px) {
  .nav__links { display: inline-flex; }
  .nav__burger, .nav__sheet { display: none !important; }
}

/* ============================================================
   5. Hero（Slogan 直接开屏 + 手机样机 + 玻璃浮动卡）
   ============================================================ */
.hero {
  background:
    radial-gradient(120% 70% at 100% 0%, rgba(255, 138, 77, 0.16) 0%, rgba(255, 138, 77, 0) 55%),
    radial-gradient(100% 60% at 0% 0%, rgba(255, 205, 158, 0.12) 0%, rgba(255, 205, 158, 0) 50%),
    var(--colorBgLayout);
  overflow: hidden;
}
.hero__inner {
  display: grid; gap: 48px;
  padding: 48px 0 88px;
  align-items: center;
}
/* 桌面双列：顶部对齐——slogan 必须是第一视觉，不做垂直居中垫高 */
@media (min-width: 960px) {
  .hero__inner { grid-template-columns: 1.05fr 0.95fr; padding: 48px 0 104px; gap: 36px; align-items: start; }
}
.hero__title {
  font-size: var(--fontSizeHeading1);
  font-weight: 900; line-height: 1.06; letter-spacing: 0.01em;
  margin-bottom: 22px;
}
/* slogan 全句墨色（原版；渐变/橙色强调均已试用并废止） */
.hero__title-accent { color: inherit; }
.hero__sub {
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700; color: var(--colorPrimary);
  margin-bottom: 18px;
}
.hero__desc {
  font-size: var(--fontSize); color: var(--colorTextSecondary);
  max-width: 30em; margin-bottom: 36px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero__stores {
  margin-top: 24px;
  font-size: 13px; color: var(--colorTextTertiary);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.hero__stores i {
  font-style: normal;
  border: 1px solid var(--colorBorder); border-radius: 8px;
  padding: 3px 10px; background: var(--colorBgContainer);
}

/* Hero 视觉 */
.hero__visual { position: relative; display: flex; flex-direction: column; align-items: center; }
.hero__glow {
  position: absolute; inset: -8% -12%;
  background: radial-gradient(60% 55% at 50% 42%, rgba(255, 138, 77, 0.22) 0%, rgba(255, 138, 77, 0) 70%);
  pointer-events: none;
}
.phone {
  position: relative;
  /* 自适应：高度跟随截图真实比例（约 3:7），不锁死 9/19；上限约束总高 */
  width: min(280px, 78vw);
  max-height: min(616px, 86vh);
  border-radius: 34px;
  background: #1c1815;
  padding: 10px;
  box-shadow: var(--boxShadow), 0 30px 60px rgba(89, 62, 38, 0.18);
}
.phone__screen {
  width: 100%;
  border-radius: 24px;
  overflow: hidden;
  background: var(--colorBgLayout);
}
/* 真实 App 截图：图片自身决定高度，宽 100% 填充，零裁切 */
.phone__shot { width: 100%; height: auto; object-fit: contain; display: block; }

.float-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  width: min(440px, 100%);
  margin-top: -26px;
  position: relative; z-index: 2;
}
.float-card {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 14px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  text-align: center;
}
.float-card svg { width: 20px; height: 20px; color: var(--colorPrimary); }
.float-card b { font-size: 12.5px; font-weight: 700; line-height: 1.3; }
.float-card small { font-size: 11px; color: var(--colorTextTertiary); line-height: 1.45; text-wrap: pretty; }

/* ============================================================
   6. 四个紧绷时刻（四卡等宽并列——时序关系，不做主次 Bento）
   ============================================================ */
.moments { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.moment-card {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 22px 22px 24px;
  display: flex; flex-direction: column; gap: 12px;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.moment-card:hover { transform: translateY(-4px); box-shadow: var(--boxShadow); }
.moment-card__photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border-radius: var(--borderRadius);
  margin-bottom: 4px;
  filter: saturate(0.92) sepia(0.06);
  transition: transform var(--dur) var(--ease-out);
}
.moment-card:hover .moment-card__photo { transform: scale(1.03); }
.moment-card__time {
  font-size: 12.5px; font-weight: 700; color: var(--colorPrimary);
  letter-spacing: 0.06em;
}
.moment-card__quote { font-size: 16px; line-height: 1.65; }
.moment-card__scene { font-size: 12.5px; color: var(--colorTextTertiary); margin-top: auto; }

.section__tail {
  margin-top: 32px; text-align: center;
  font-size: 17px; color: var(--colorTextSecondary);
}
.section__tail b { color: var(--colorText); }

@media (max-width: 960px) {
  .moments { grid-template-columns: 1fr; }
}

/* ============================================================
   7. 活在未来 · 回到当下
   ============================================================ */
.now-list {
  max-width: 620px; margin: 0 auto 36px;
  display: grid; gap: 14px;
}
.now-list p {
  display: flex; gap: 12px; align-items: baseline;
  font-size: 16.5px; line-height: 1.75; color: var(--colorTextSecondary);
}
.now-list p::before {
  content: ""; flex-shrink: 0;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--colorPrimary); transform: translateY(-2px);
}
.now-resolve { max-width: 640px; margin: 0 auto; text-align: center; }
.now-lead { font-size: 17.5px; line-height: 1.85; color: var(--colorText); }
.now-sub { margin-top: 14px; font-size: 15.5px; color: var(--colorTextSecondary); line-height: 1.8; }
.now-tail { margin-top: 28px; font-size: 19px; }
.now-tail b { color: var(--colorPrimaryActive); }

/* ============================================================
   8. 玩法五步
   ============================================================ */
.steps { display: grid; gap: 16px; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.step {
  position: relative;
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.step:hover { transform: translateY(-4px); box-shadow: var(--boxShadow); }
.step__media { position: relative; }
.step__photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) sepia(0.06);
  transition: transform var(--dur) var(--ease-out);
}
.step:hover .step__photo { transform: scale(1.04); }
.step__num {
  position: absolute; top: 12px; left: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(250, 247, 242, 0.92); color: var(--colorPrimary);
  font-family: var(--font-num); font-weight: 700; font-size: 15px;
  box-shadow: 0 2px 8px rgba(20, 17, 16, 0.18);
}
.step__body { padding: 18px 20px 22px; }
.step__title { font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
.step__note {
  display: inline-block; margin-left: 8px; padding: 2px 9px;
  font-size: 11px; font-weight: 600; color: var(--colorPrimaryActive);
  background: var(--colorPrimaryBg); border-radius: 999px;
  vertical-align: 2px; white-space: nowrap;
}
.step__desc { font-size: 13.5px; color: var(--colorTextSecondary); line-height: 1.65; }
@media (min-width: 960px) {
  .step:not(:last-child)::after {
    content: "";
    position: absolute; top: 27px; right: -13px;
    width: 10px; height: 2px;
    background: var(--colorBorder);
  }
}

/* ============================================================
   9. 是什么 / 不是什么（Ant Card 双栏）
   ============================================================ */
.compare { display: grid; gap: 20px; }
@media (min-width: 760px) { .compare { grid-template-columns: 1fr 1fr; } }
.compare__col {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  overflow: hidden;
}
.compare__head { padding: 16px 24px; font-size: 16px; font-weight: 800; }
.compare__col--yes .compare__head { background: var(--colorPrimaryBg); color: var(--colorPrimaryActive); }
.compare__col--no .compare__head { background: #F3EEE6; color: var(--colorTextSecondary); }
.compare__col ul { padding: 10px 24px 18px; }
.compare__col li {
  display: flex; gap: 12px; align-items: baseline;
  padding: 11px 0; font-size: 15.5px;
  border-bottom: 1px solid var(--colorBorderSecondary);
}
.compare__col li:last-child { border-bottom: none; }
.compare__mark { font-family: var(--font-num); font-weight: 800; flex-shrink: 0; }
.compare__col--yes .compare__mark { color: var(--colorPrimary); }
.compare__col--no .compare__mark { color: var(--colorTextQuaternary); }

/* ============================================================
   10. 安全
   ============================================================ */
.safety { display: grid; gap: 16px; }
@media (min-width: 640px) { .safety { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .safety { grid-template-columns: repeat(4, 1fr); } }
.safety-card {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 26px 22px;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.safety-card:hover { transform: translateY(-4px); box-shadow: var(--boxShadow); }
.safety-card svg { width: 26px; height: 26px; color: var(--colorPrimary); margin-bottom: 14px; }
.safety-card b { display: block; font-size: 16px; margin-bottom: 7px; }
.safety-card p { font-size: 13.5px; color: var(--colorTextSecondary); line-height: 1.7; }

/* ============================================================
   11. 夜色金句
   ============================================================ */
.night {
  position: relative;
  background: var(--colorNightBg);
  color: var(--colorNightText);
  overflow: hidden;
}
.night::before {
  content: "";
  position: absolute; inset: 0;
  background: url("../img/scenes/night-band-city.jpg") center / cover no-repeat;
  opacity: 0.42;
}
.night::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20, 17, 16, 0.62) 0%, rgba(20, 17, 16, 0.28) 45%, rgba(20, 17, 16, 0.78) 100%);
}
.night .container { position: relative; z-index: 1; }
.night__quote {
  text-align: center;
  font-size: clamp(24px, 3.8vw, 34px);
  font-weight: 700; line-height: 1.55;
  max-width: 24em; margin-inline: auto;
}
.night__quote::before {
  content: "";
  display: block; width: 36px; height: 3px; border-radius: 2px;
  background: var(--colorPrimary);
  margin: 0 auto 26px;
}
.night__quote-line {
  text-align: center;
  margin-top: 14px;
  font-size: 15px; color: var(--colorNightBody); letter-spacing: 0.06em;
}
.night__quote-sub {
  text-align: center;
  margin-top: 18px;
  font-size: 15px; color: var(--colorNightTextTertiary);
}

/* ============================================================
   12. 底部转化（CTA · 恢复原浅色版式：米白底 + 橙色标题，2026-09-14 渐变面板经用户复审刺眼废止）
   ============================================================ */
.cta-band { padding: 96px 0 120px; text-align: center; }
.cta-panel {
  position: relative; overflow: hidden;
  border-radius: var(--borderRadiusXL);
  padding: 72px 40px;
  text-align: center;
  background: var(--colorPrimaryBg);
  box-shadow: var(--boxShadowTertiary);
}
.cta-panel::before { display: none; }
.cta-panel > * { position: relative; }
.cta-band__title {
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 900; margin-bottom: 14px;
  color: var(--colorText);
}
.cta-band__sub { color: var(--colorTextSecondary); font-size: 17px; margin-bottom: 34px; }
.cta-band__btns { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cta-panel .btn--primary { background: var(--colorPrimary); color: #fff; box-shadow: var(--boxShadowGlow); }
.cta-panel .btn--primary:hover { background: var(--colorPrimaryHover); transform: translateY(-1px); }
.cta-panel .btn--ghost { color: var(--colorPrimary); border-color: var(--colorPrimaryBorder); }
.cta-panel .btn--ghost:hover { background: #fff; border-color: var(--colorPrimary); }

/* ============================================================
   13. 下载中心
   ============================================================ */
.dl-grid { display: grid; gap: 20px; margin-bottom: 20px; }
@media (min-width: 760px) { .dl-grid { grid-template-columns: 1fr 1fr; } }
.dl-card {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 30px 28px;
  display: flex; align-items: center; gap: 20px;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.dl-card:hover { transform: translateY(-3px); box-shadow: var(--boxShadow); }
.dl-card__icon {
  width: 60px; height: 60px; flex-shrink: 0;
  border-radius: 18px;
  background: var(--colorPrimaryBg);
  display: flex; align-items: center; justify-content: center;
  color: var(--colorPrimary);
}
.dl-card__icon svg { width: 28px; height: 28px; }
.dl-card__body { flex: 1; min-width: 0; }
.dl-card__body b { display: block; font-size: 18px; margin-bottom: 4px; }
.dl-card__body span { font-size: 13.5px; color: var(--colorTextTertiary); }
.dl-card__arrow { color: var(--colorPrimary); flex-shrink: 0; }

.dl-mp {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 30px 28px;
  display: grid; gap: 20px; align-items: center;
  margin-bottom: 16px;
}
@media (min-width: 760px) { .dl-mp { grid-template-columns: 1fr auto; } }
.qr-placeholder {
  width: 128px; height: 128px;
  border: 2px dashed var(--colorBorder);
  border-radius: var(--borderRadius);
  display: flex; align-items: center; justify-content: center;
  background: #F3EEE6;
}
.qr-placeholder img { width: 52px; height: auto; opacity: 0.55; }
.dl-note { font-size: 13px; color: var(--colorTextTertiary); padding: 0 4px 8px; }

.faq { display: grid; gap: 16px; margin-top: 44px; }
@media (min-width: 640px) { .faq { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .faq { grid-template-columns: repeat(4, 1fr); } }
.faq-item {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 24px 22px;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.faq-item:hover { transform: translateY(-3px); box-shadow: var(--boxShadow); }
.faq-item svg { width: 20px; height: 20px; color: var(--colorPrimary); margin-bottom: 12px; }
.faq-item b { display: block; font-size: 15.5px; margin-bottom: 8px; line-height: 1.45; }
.faq-item p { font-size: 13.5px; color: var(--colorTextSecondary); line-height: 1.7; }

/* ============================================================
   14. 关于页
   ============================================================ */
.about-hero { text-align: center; padding: 96px 0 28px; }
@media (min-width: 860px) { .about-hero { padding: 120px 0 36px; } }
.about-lede {
  max-width: 640px; margin: 0 auto;
  font-size: 17px; color: var(--colorTextSecondary); line-height: 1.9;
}
.about-cards { display: grid; gap: 20px; }
@media (min-width: 760px) { .about-cards { grid-template-columns: 1fr 1fr; } }
.about-card {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 34px 32px;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.about-card:hover { transform: translateY(-3px); box-shadow: var(--boxShadow); }
.about-card b { display: block; font-size: 18px; margin-bottom: 12px; }
.about-card p { font-size: 15px; color: var(--colorTextSecondary); line-height: 1.85; }

.positioning-band {
  margin-top: 56px;
  text-align: center;
  background: var(--colorPrimaryBg);
  border-radius: var(--borderRadiusXL);
  padding: 40px 24px;
}
.positioning-band b { font-size: clamp(18px, 2.8vw, 24px); color: var(--colorPrimaryActive); }

.principles { border-top: 1px solid var(--colorBorderSecondary); }
.principle {
  display: grid; gap: 4px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--colorBorderSecondary);
}
@media (min-width: 760px) {
  .principle { grid-template-columns: 5fr 7fr; gap: 24px; align-items: baseline; }
}
.principle b { font-size: 16px; }
.principle span { font-size: 14.5px; color: var(--colorTextSecondary); line-height: 1.7; }

.beliefs { display: grid; gap: 14px; }
@media (min-width: 640px) { .beliefs { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .beliefs { grid-template-columns: repeat(3, 1fr); } }
.belief {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  padding: 22px 24px;
  font-size: 15px; line-height: 1.7;
  box-shadow: var(--boxShadowTertiary);
}
.belief i {
  font-style: normal;
  font-family: var(--font-num); font-weight: 800;
  color: var(--colorPrimary); margin-right: 8px;
}
.promise-list { display: grid; gap: 12px; max-width: 720px; }
.promise-list li {
  display: flex; gap: 12px; align-items: baseline;
  font-size: 15.5px; line-height: 1.75;
}
.promise-list li::before {
  content: "";
  flex-shrink: 0;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--colorPrimary);
  transform: translateY(-2px);
}

.contact-block {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 32px 30px;
  display: grid; gap: 18px;
}
@media (min-width: 760px) { .contact-block { grid-template-columns: 1fr 1fr; } }
.contact-block div b { display: block; font-size: 14px; color: var(--colorTextTertiary); margin-bottom: 6px; }
.contact-block div span { font-size: 15.5px; }

/* ============================================================
   15. 法律页
   ============================================================ */
.legal-page { padding: 64px 0 96px; }
.legal-page article {
  background: var(--colorBgContainer);
  border: 1px solid var(--colorBorderSecondary);
  border-radius: var(--borderRadiusLG);
  box-shadow: var(--boxShadowTertiary);
  padding: 36px 28px;
}
@media (min-width: 760px) { .legal-page article { padding: 52px 60px; } }
.legal-page h1 { font-size: clamp(24px, 3.6vw, 34px); margin-bottom: 10px; }
.legal-meta { font-size: 13px; color: var(--colorTextTertiary); margin-bottom: 36px; }
.legal-page h2 {
  font-size: 18px; margin: 36px 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--colorPrimary);
  line-height: 1.4;
}
.legal-page p {
  font-size: 14.5px; color: var(--colorTextSecondary);
  line-height: 1.9; margin-bottom: 10px;
}

/* ============================================================
   16. Footer
   ============================================================ */
.footer {
  background: var(--colorNightBg);
  color: var(--colorNightBody);
  padding: 72px 0 36px;
  margin-top: 48px;
}
.footer__grid { display: grid; gap: 36px; margin-bottom: 44px; }
@media (min-width: 760px) { .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; } }
.footer__brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 800; color: var(--colorNightText);
}
.footer__logo { height: 36px; width: auto; display: block; }
.footer__slogan { margin-top: 14px; font-size: 13.5px; color: var(--colorNightTextTertiary); }
.footer__col b {
  display: block; font-size: 13px; letter-spacing: 0.1em;
  color: var(--colorNightTextTertiary); margin-bottom: 14px;
}
.footer__col a {
  display: block; padding: 5px 0;
  font-size: 14px; color: var(--colorNightBody);
  opacity: 0.85; transition: opacity var(--fast) ease, color var(--fast) ease;
}
.footer__col a:hover { opacity: 1; color: var(--colorPrimaryHover); }
.footer__bottom {
  border-top: 1px solid var(--colorNightBorder);
  padding-top: 24px;
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  align-items: center; justify-content: space-between;
  font-size: 12.5px; color: var(--colorNightTextTertiary);
}
.footer__beian { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer__beian a { color: var(--colorNightTextTertiary); }
.footer__beian a:hover { color: var(--colorPrimaryHover); }

/* ============================================================
   17. 404
   ============================================================ */
.notfound { text-align: center; padding: 120px 0 140px; }
.notfound h1 { font-size: clamp(26px, 5vw, 40px); margin: 28px 0 12px; }
.notfound p { color: var(--colorTextSecondary); margin-bottom: 34px; }
.notfound-logo { width: 96px; height: auto; display: block; margin: 0 auto; }

/* ============================================================
   18. 进场动效 / Toast
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .moment-card:hover, .step:hover, .safety-card:hover, .about-card:hover, .faq-item:hover, .dl-card:hover { transform: none; }
}

.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(16px);
  background: var(--colorNightCard); color: var(--colorNightText);
  font-size: 13.5px;
  padding: 12px 22px; border-radius: 999px;
  box-shadow: var(--boxShadow);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur) ease, transform var(--dur) var(--ease-out);
  z-index: 200;
  max-width: min(86vw, 420px); text-align: center;
}
.toast.is-show { opacity: 1; transform: translateX(-50%) translateY(0); }