/* ============================================================
   安心相遇 · 官网重构设计系统
   暖调品牌粉 + 奶油底色 + 衬线标题，柔和、克制、可信赖
   ============================================================ */

:root {
  --brand: #F04A78;
  --brand-light: #FF6B9D;
  --brand-deep: #D63868;
  --brand-soft: #FFE3EC;
  --blush: #FFF3F6;
  --cream: #FFFBF9;
  --ink: #2B1B22;
  --ink-soft: #57434C;
  --muted: #8B7A81;
  --line: rgba(240, 74, 120, 0.12);
  --card-shadow: 0 2px 6px rgba(43, 27, 34, 0.04), 0 16px 40px rgba(240, 74, 120, 0.06);
  --card-shadow-hover: 0 6px 16px rgba(43, 27, 34, 0.06), 0 24px 56px rgba(240, 74, 120, 0.14);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --sans: -apple-system, "SF Pro", "SF Pro Display", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --radius-lg: 24px;
  --radius-md: 18px;
  --nav-h: 68px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.wrap-narrow { max-width: 780px; }

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; position: relative; }
.section--blush { background: var(--blush); }
.section--cream { background: var(--cream); }

.sec-head { text-align: center; margin-bottom: 56px; }
.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.sec-eyebrow::before,
.sec-eyebrow::after {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand-light));
}
.sec-eyebrow::after {
  background: linear-gradient(90deg, var(--brand-light), transparent);
}
.sec-title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  color: var(--ink);
}
.sec-sub {
  margin: 0 auto;
  max-width: 560px;
  font-size: 17px;
  color: var(--muted);
}

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.nav.is-scrolled {
  background: rgba(255, 251, 249, 0.82);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(43, 27, 34, 0.06), 0 8px 24px rgba(43, 27, 34, 0.05);
}
.nav-inner {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  color: #fff;
  transition: color 0.3s ease;
}
.nav-brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: 0 2px 8px rgba(43, 27, 34, 0.15);
}
.nav.is-scrolled .nav-brand { color: var(--ink); }
.nav-links {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 15px;
}
.nav-links a {
  color: rgba(255, 255, 255, 0.88);
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:hover { color: #fff; }
.nav.is-scrolled .nav-links a { color: var(--ink-soft); }
.nav.is-scrolled .nav-links a:hover { color: var(--brand); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 4px 14px rgba(43, 27, 34, 0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease, color 0.3s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(43, 27, 34, 0.2); }
.nav.is-scrolled .nav-cta {
  background: linear-gradient(135deg, var(--brand-light), var(--brand));
  color: #fff;
  box-shadow: 0 6px 16px rgba(240, 74, 120, 0.35);
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-inner { gap: 12px; }
  .nav-cta { margin-left: auto; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(255, 255, 255, 0.22), transparent 60%),
    radial-gradient(700px 460px at 85% 80%, rgba(214, 56, 104, 0.55), transparent 65%),
    linear-gradient(150deg, #FF7FA8 0%, var(--brand-light) 38%, var(--brand) 72%, var(--brand-deep) 100%);
}
.hero::before {
  /* 细腻噪点，柔化渐变 */
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.hero-glow--a {
  width: 420px; height: 420px;
  top: -120px; left: -100px;
  background: rgba(255, 255, 255, 0.28);
  animation: drift 14s ease-in-out infinite alternate;
}
.hero-glow--b {
  width: 520px; height: 520px;
  bottom: -160px; right: -140px;
  background: rgba(255, 210, 226, 0.32);
  animation: drift 18s ease-in-out infinite alternate-reverse;
}
@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(40px, 30px) scale(1.08); }
}
.hero-hearts { position: absolute; inset: 0; pointer-events: none; }
.hero-hearts span {
  position: absolute;
  opacity: 0.22;
  animation: floatHeart 9s ease-in-out infinite;
}
.hero-hearts span img { display: block; width: 100%; height: auto; }
.hero-hearts span:nth-child(1) { top: 18%; left: 12%; width: 44px; animation-delay: 0s; }
.hero-hearts span:nth-child(2) { top: 30%; right: 14%; width: 28px; animation-delay: 1.6s; }
.hero-hearts span:nth-child(3) { bottom: 26%; left: 20%; width: 22px; animation-delay: 3.1s; }
.hero-hearts span:nth-child(4) { bottom: 34%; right: 22%; width: 36px; animation-delay: 2.2s; }
.hero-hearts span:nth-child(5) { top: 55%; left: 7%; width: 18px; animation-delay: 4s; }
@keyframes floatHeart {
  0%, 100% { transform: translateY(0) rotate(-4deg); }
  50% { transform: translateY(-18px) rotate(5deg); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: calc(var(--nav-h) + 20px) 24px 120px;
}
.hero-logo {
  display: block;
  width: clamp(170px, 26vw, 240px);
  margin: 0 auto 16px;
  filter: drop-shadow(0 12px 32px rgba(150, 20, 60, 0.35));
  animation: heroRise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  font-size: 13.5px;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  animation: heroRise 0.9s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.03em;
  margin: 0 0 20px;
  text-shadow: 0 4px 24px rgba(150, 20, 60, 0.25);
  animation: heroRise 0.9s 0.16s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-title em {
  font-style: normal;
  position: relative;
  white-space: nowrap;
}
.hero-title em::after {
  content: "";
  position: absolute;
  left: 2%;
  right: 2%;
  bottom: 0.08em;
  height: 0.28em;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  z-index: -1;
}
.hero-sub {
  font-size: clamp(17px, 2.4vw, 20px);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 40px;
  animation: heroRise 0.9s 0.24s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 34px;
  animation: heroRise 0.9s 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes heroRise {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 34px;
  border-radius: 999px;
  font-size: 16.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn:active { transform: scale(0.97); }
.btn--hero {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 10px 28px rgba(150, 20, 60, 0.35);
}
.btn--hero:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(150, 20, 60, 0.42); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.24); transform: translateY(-2px); }
.btn--primary {
  background: linear-gradient(135deg, var(--brand-light), var(--brand));
  color: #fff;
  box-shadow: 0 10px 26px rgba(240, 74, 120, 0.32);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(240, 74, 120, 0.42); }

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 26px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  animation: heroRise 0.9s 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 7px; }
.hero-trust svg { width: 15px; height: 15px; flex: none; }

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  line-height: 0;
  z-index: 1;
}
.hero-wave svg { width: 100%; height: clamp(60px, 9vw, 120px); display: block; }

/* ---------- 视频区块 ---------- */
.video-frame {
  position: relative;
  max-width: 840px;
  margin: 0 auto;
}
.video-frame::before {
  content: "";
  position: absolute;
  inset: -26px;
  border-radius: 36px;
  background: linear-gradient(135deg, rgba(255, 107, 157, 0.18), rgba(240, 74, 120, 0.05));
  z-index: 0;
}
.video-shell {
  position: relative;
  z-index: 1;
  border-radius: 28px;
  overflow: hidden;
  background: #141014;
  box-shadow: 0 24px 64px rgba(43, 27, 34, 0.18);
  aspect-ratio: 16 / 9;
}
.video-shell video { width: 100%; height: 100%; object-fit: contain; display: block; }

/* ---------- 社区入口横幅 ---------- */
.banner {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  padding: clamp(40px, 6vw, 64px);
  background:
    radial-gradient(420px 260px at 88% 20%, rgba(255, 255, 255, 0.25), transparent 65%),
    linear-gradient(120deg, var(--brand-light), var(--brand) 70%, var(--brand-deep));
  color: #fff;
  box-shadow: 0 24px 56px rgba(240, 74, 120, 0.28);
}
.banner::after {
  content: "❤";
  position: absolute;
  right: clamp(16px, 5vw, 60px);
  bottom: -30px;
  font-size: 150px;
  color: rgba(255, 255, 255, 0.1);
  transform: rotate(-12deg);
  pointer-events: none;
}
.banner-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.banner h2 {
  font-family: var(--serif);
  font-size: clamp(24px, 3.4vw, 32px);
  margin: 0 0 10px;
}
.banner p {
  margin: 0;
  max-width: 520px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
}
.btn--banner {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 10px 24px rgba(150, 20, 60, 0.3);
  flex: none;
}
.btn--banner:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(150, 20, 60, 0.4); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) {
  .grid--3 { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .grid--5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid--5 { grid-template-columns: 1fr; }
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--card-shadow);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(240, 74, 120, 0.22);
}
.card h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--ink);
}
.card p { margin: 0; font-size: 15.5px; color: var(--muted); }

.card--center { text-align: center; }
.card--row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.chip {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex: none;
  margin-bottom: 18px;
}
.card--row .chip { margin-bottom: 0; width: 50px; height: 50px; }
.chip svg { width: 25px; height: 25px; }
.chip--pink { background: linear-gradient(135deg, #FFE9F0, #FFD6E3); color: var(--brand); }
.chip--blue { background: linear-gradient(135deg, #E7F1FF, #D3E5FF); color: #0A84FF; }
.chip--orange { background: linear-gradient(135deg, #FFF1E4, #FFE1C7); color: #F26B1D; }
.chip--green { background: linear-gradient(135deg, #E6F9EE, #CDF2DD); color: #1FA45B; }
.chip--red { background: linear-gradient(135deg, #FFEAEA, #FFD9D9); color: #E23E3E; }
.chip--purple { background: linear-gradient(135deg, #F3EBFF, #E7D9FF); color: #8A4FE8; }

/* 安全机制小卡 */
.safety-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 18px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}
.safety-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(240, 74, 120, 0.22);
}
.safety-card .chip { width: 56px; height: 56px; border-radius: 18px; margin-bottom: 16px; }
.safety-card .chip svg { width: 27px; height: 27px; }
.safety-card h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
.safety-card p { margin: 0; font-size: 13.5px; line-height: 1.7; color: var(--muted); }

/* ---------- 扫码区块 ---------- */
.qr-card {
  display: flex;
  align-items: center;
  gap: clamp(36px, 6vw, 72px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: clamp(36px, 6vw, 60px);
  box-shadow: var(--card-shadow);
}
.qr-text { flex: 1; min-width: 260px; }
.qr-text .sec-eyebrow { margin-bottom: 12px; }
.qr-text .sec-eyebrow::before { display: none; }
.qr-text h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.6vw, 34px);
  margin: 0 0 12px;
}
.qr-text > p { margin: 0 0 26px; color: var(--muted); font-size: 16px; }
.qr-steps { display: flex; flex-direction: column; gap: 14px; margin: 0; padding: 0; list-style: none; }
.qr-steps li { display: flex; align-items: center; gap: 14px; font-size: 15.5px; color: var(--ink-soft); }
.qr-steps b {
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--brand);
  background: var(--brand-soft);
  font-weight: 700;
}
.qr-visual { flex: none; position: relative; }
.qr-visual::before {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(255, 107, 157, 0.2), rgba(240, 74, 120, 0.06));
  transform: rotate(3deg);
}
.qr-img {
  position: relative;
  width: clamp(190px, 26vw, 230px);
  height: clamp(190px, 26vw, 230px);
  padding: 12px;
  background: #fff;
  border-radius: 26px;
  box-shadow: 0 20px 48px rgba(240, 74, 120, 0.22);
}
.qr-img img { width: 100%; height: 100%; object-fit: contain; border-radius: 16px; display: block; }
@media (max-width: 760px) {
  .qr-card { flex-direction: column; text-align: center; }
  .qr-text .sec-eyebrow { justify-content: center; }
  .qr-text .sec-eyebrow::after { display: none; }
  .qr-steps li { justify-content: center; }
}

/* ---------- FAQ ---------- */
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0;
  margin-bottom: 14px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item[open] { border-color: rgba(240, 74, 120, 0.28); box-shadow: var(--card-shadow-hover); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--brand); }
.faq-icon {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), background 0.3s ease, color 0.3s ease;
}
.faq-icon svg { width: 14px; height: 14px; }
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--brand); color: #fff; }
.faq-body { padding: 0 26px 24px; margin: 0; font-size: 15.5px; color: var(--muted); }

/* ---------- 页脚 ---------- */
.footer {
  background: linear-gradient(180deg, #241820, #1B1117);
  color: #fff;
  padding: 72px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; text-align: center; } }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
@media (max-width: 560px) { .footer-brand { justify-content: center; } }
.footer-brand img { width: 42px; height: 42px; border-radius: 11px; }
.footer-brand span { font-family: var(--serif); font-weight: 700; font-size: 21px; }
.footer-slogan { margin: 0; font-size: 14px; color: rgba(255, 255, 255, 0.5); }
.footer h4 {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; font-size: 14.5px; }
@media (max-width: 560px) { .footer-links { align-items: center; } }
.footer-links a { color: rgba(255, 255, 255, 0.72); transition: color 0.2s ease; }
.footer-links a:hover { color: #fff; }
.social-row { display: flex; gap: 12px; }
@media (max-width: 560px) { .social-row { justify-content: center; } }
.social-row a {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, transform 0.25s ease;
  position: relative;
}
.social-row a:hover { background: rgba(255, 255, 255, 0.16); transform: translateY(-2px); }
.social-row a img { width: 24px; height: 24px; display: block; position: relative; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 28px;
  text-align: center;
}
.record-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 22px; }
.record-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease;
}
.record-link:hover { color: #fff; }
.record-icon { width: 15px; height: 15px; object-fit: contain; flex: 0 0 15px; }
.copyright { margin: 12px 0 0; font-size: 12px; color: rgba(255, 255, 255, 0.35); }

/* ---------- 滚动渐显 ---------- */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--d, 0s);
}
.reveal.reveal-pending { opacity: 0; transform: translateY(28px); }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-logo, .hero-pill, .hero-title, .hero-sub, .hero-actions, .hero-trust { animation: none; }
  .hero-glow--a, .hero-glow--b, .hero-hearts span { animation: none; }
}

/* ---------- 移动端间距 ---------- */
@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .sec-head { margin-bottom: 40px; }
  .hero-content { padding-bottom: 100px; }
  .card { padding: 26px 22px; }
  .video-frame::before { inset: -18px 0; }
}