:root {
  --primary: #ff4d6d;
  --primary-dark: #e63956;
  --primary-soft: #fff0f3;
  --accent: #ff8fa3;
  --gold: #f6b73c;
  --gold-deep: #d99a2b;
  --ink: #2b2233;
  --muted: #8a8290;
  --bg: #fff;
  --bg-alt: #fff7f9;
  --line: #f0e6ea;
  --shadow: 0 10px 30px rgba(255, 77, 109, 0.12);
  --shadow-lg: 0 20px 50px rgba(255, 77, 109, 0.18);
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; }
.container { width: min(1140px, 92%); margin: 0 auto; }

/* 按钮 */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 60%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg); animation: shine 3.5s infinite;
}
@keyframes shine { 0% { left: -80%; } 45%, 100% { left: 130%; } }
.btn-primary:hover { box-shadow: 0 14px 34px rgba(255,77,109,.32); transform: translateY(-1px); }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-soft); transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.18); color: #fff; border: 1px solid rgba(255,255,255,.5); padding: 8px 18px; }
.btn-ghost:hover { background: rgba(255,255,255,.3); }
.btn-block { width: 100%; padding: 14px; font-size: 16px; margin-top: 8px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* 顶部导航 */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 14px rgba(255, 77, 109, .05);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-img { width: 44px; height: 44px; object-fit: contain; filter: drop-shadow(0 3px 6px rgba(255,77,109,.25)); }
.logo-text { font-weight: 800; font-size: 20px; letter-spacing: 1px; color: var(--ink); }
.logo-text em { font-style: normal; color: var(--primary); }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--ink); font-weight: 500; position: relative; }
.nav-links a:hover { color: var(--primary); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--gold)); transition: width .2s; border-radius: 2px;
}
.nav-links a:hover::after { width: 100%; }

/* Hero */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, #ffe3ea 0%, transparent 60%),
    radial-gradient(700px 380px at -10% 110%, #ffeede 0%, transparent 55%),
    linear-gradient(135deg, #fff0f3 0%, #ffe9f0 100%);
  padding: 64px 0 78px;
  overflow: hidden;
  position: relative;
}
/* 漂浮爱心动效 */
.hero-hearts span {
  position: absolute; bottom: -40px; color: rgba(255, 77, 109, .18);
  animation: floatUp linear infinite; user-select: none;
}
.hero-hearts span:nth-child(1) { left: 6%;  font-size: 26px; animation-duration: 11s; }
.hero-hearts span:nth-child(2) { left: 18%; font-size: 16px; animation-duration: 14s; animation-delay: 2s; }
.hero-hearts span:nth-child(3) { left: 32%; font-size: 20px; animation-duration: 12s; animation-delay: 5s; }
.hero-hearts span:nth-child(4) { left: 47%; font-size: 14px; animation-duration: 16s; animation-delay: 1s; }
.hero-hearts span:nth-child(5) { left: 60%; font-size: 24px; animation-duration: 13s; animation-delay: 3s; }
.hero-hearts span:nth-child(6) { left: 72%; font-size: 15px; animation-duration: 15s; animation-delay: 6s; }
.hero-hearts span:nth-child(7) { left: 84%; font-size: 22px; animation-duration: 12s; animation-delay: 4s; }
.hero-hearts span:nth-child(8) { left: 93%; font-size: 18px; animation-duration: 17s; animation-delay: 2.5s; }
@keyframes floatUp {
  0%   { transform: translateY(0) rotate(0deg); opacity: 0; }
  12%  { opacity: 1; }
  85%  { opacity: .8; }
  100% { transform: translateY(-78vh) rotate(28deg); opacity: 0; }
}

.hero-inner { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; position: relative; z-index: 1; }
.hero-text { flex: 1 1 460px; }
.hero-slogan-en { letter-spacing: 3px; color: var(--gold-deep); font-weight: 700; font-size: 14px; }
.hero-title { font-size: 62px; line-height: 1.05; font-weight: 800; margin: 10px 0 14px; color: var(--ink); }
.hero-title span {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--muted); font-size: 18px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; margin-bottom: 36px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stats strong { display: block; font-size: 30px; color: var(--primary-dark); font-weight: 800; }
.hero-stats span { color: var(--muted); font-size: 13px; }

.hero-card {
  flex: 0 0 320px; background: #fff; border-radius: 26px; padding: 22px;
  box-shadow: var(--shadow-lg); text-align: center; position: relative;
  border: 1px solid rgba(255, 143, 163, .25);
}
.hero-card::before {
  content: "❤"; position: absolute; top: -18px; right: -14px; font-size: 34px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow); animation: beat 1.6s ease-in-out infinite;
}
@keyframes beat {
  0%, 100% { transform: scale(1); }
  12% { transform: scale(1.15); }
  24% { transform: scale(1); }
  36% { transform: scale(1.1); }
  48% { transform: scale(1); }
}
.hero-logo { width: 58px; height: 58px; margin: -60px auto 6px; filter: drop-shadow(0 4px 10px rgba(246,183,60,.4)); }
.hero-card-tag { display: inline-block; background: var(--primary-soft); color: var(--primary); font-weight: 700; font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 14px; }
.hero-card-photo { height: 280px; border-radius: 16px; background: linear-gradient(135deg,#ffd6e0,#ffe9c7) center/cover no-repeat; }
.hero-card-tip { color: var(--muted); font-size: 13px; margin-top: 12px; }

/* 通用 section */
.section { padding: 70px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; margin-bottom: 40px; }
.section-badge {
  display: inline-block; font-size: 12px; letter-spacing: 2px; font-weight: 700;
  color: var(--gold-deep); background: linear-gradient(135deg, #fff6e3, #ffeadb);
  padding: 5px 16px; border-radius: 999px; margin-bottom: 12px;
  border: 1px solid #ffe3c2;
}
.section-head h2 { font-size: 34px; font-weight: 800; position: relative; display: inline-block; padding-bottom: 16px; }
.section-head h2::after {
  content: "❤"; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  color: var(--primary); font-size: 15px;
}
.section-head h2::before {
  content: ""; position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%);
  width: 56px; height: 2.5px; border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
}
.section-head p { color: var(--muted); margin-top: 10px; }

/* 筛选 */
.filter-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 30px; flex-wrap: wrap; }
.tab {
  padding: 10px 24px; border-radius: 999px; border: 1.5px solid var(--line);
  background: #fff; color: var(--muted); font-weight: 600; cursor: pointer;
  transition: all .18s ease;
}
.tab:hover { border-color: var(--accent); color: var(--primary); }
.tab.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; border-color: transparent; box-shadow: 0 8px 20px rgba(255,77,109,.25);
}
.grid-tip { text-align: center; color: #c9bfce; font-size: 13px; margin-top: 26px; }

/* 嘉宾网格 */
.guest-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 24px; }
.loading, .empty { grid-column: 1/-1; text-align: center; color: var(--muted); padding: 40px; }
.guest-card {
  background: #fff; border-radius: 20px; overflow: hidden;
  box-shadow: 0 8px 22px rgba(0,0,0,.07);
  cursor: pointer; transition: transform .2s ease, box-shadow .2s ease;
  border: 1px solid var(--line);
}
.guest-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.guest-photo { height: 260px; background: #f3eef1 center/cover no-repeat; position: relative; transition: transform .3s ease; }
.guest-card:hover .guest-photo { transform: scale(1.03); }
.guest-photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(43,34,51,.35));
  opacity: 0; transition: opacity .25s;
}
.guest-card:hover .guest-photo::after { opacity: 1; }
.guest-gender {
  position: absolute; top: 12px; left: 12px; font-size: 12px; font-weight: 700; color: #fff;
  padding: 4px 11px; border-radius: 999px; backdrop-filter: blur(4px); z-index: 1;
}
.guest-gender.female { background: rgba(255,77,109,.88); }
.guest-gender.male { background: rgba(64,140,255,.88); }
.guest-info { padding: 15px 17px 19px; position: relative; }
.guest-info::before {
  content: "❤"; position: absolute; right: 16px; top: 14px; color: #ffd6e0; font-size: 16px;
  transition: color .2s, transform .2s;
}
.guest-card:hover .guest-info::before { color: var(--primary); transform: scale(1.25); }
.guest-name { font-size: 18px; font-weight: 800; }
.guest-meta { color: var(--muted); font-size: 13px; margin: 4px 0 8px; }
.guest-intro { font-size: 13px; color: #5a5360; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 服务保障 */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.feature-card {
  background: #fff; border-radius: 20px; padding: 30px 24px; text-align: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.05); border: 1px solid var(--line);
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature-ico {
  width: 66px; height: 66px; margin: 0 auto 16px; border-radius: 20px;
  display: flex; align-items: center; justify-content: center; font-size: 30px;
  background: linear-gradient(135deg, #fff0f3, #ffe7d9);
  box-shadow: inset 0 0 0 1px rgba(255,143,163,.25);
}
.feature-card h3 { font-size: 17px; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 13.5px; }

/* 申请表单 */
.apply-wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: start; }
.apply-form {
  background: #fff; padding: 30px; border-radius: 22px;
  box-shadow: 0 8px 24px rgba(0,0,0,.06); border: 1px solid var(--line);
  border-top: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--primary), var(--gold)) 1;
}
.form-row { margin-bottom: 16px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.req { color: var(--primary); }
.hint { color: var(--muted); font-weight: 400; font-size: 12px; }
.form-row input[type=text], .form-row input[type=tel], .form-row input[type=number], .form-row textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; font-size: 15px; font-family: inherit;
  transition: border-color .15s, box-shadow .15s; background: #fffdfb;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,77,109,.1); }
.form-row textarea { resize: vertical; }
.radio-group { display: flex; gap: 22px; padding-top: 4px; }
.radio { font-weight: 500; cursor: pointer; display: flex; align-items: center; gap: 6px; }
.radio input { accent-color: var(--primary); }
.code-row { display: flex; gap: 12px; align-items: flex-end; }
.code-input { flex: 1; }
.photo-preview { margin-top: 10px; display: none; }
.photo-preview img { max-height: 120px; border-radius: 12px; border: 1px solid var(--line); }
.form-tip { margin-top: 12px; font-size: 14px; min-height: 20px; }
.form-tip.ok { color: #2e9e5b; }
.form-tip.err { color: var(--primary-dark); }
input[type=file] { font-size: 14px; }

.apply-side {
  background: linear-gradient(160deg, #fff0f3, #ffe7ef 60%, #fff2e3);
  padding: 28px; border-radius: 22px; position: relative; overflow: hidden;
}
.apply-side::after {
  content: "❤"; position: absolute; right: -14px; bottom: -20px; font-size: 110px;
  color: rgba(255,77,109,.08); transform: rotate(-12deg);
}
.apply-side-logo { width: 54px; height: 54px; margin-bottom: 10px; filter: drop-shadow(0 3px 8px rgba(246,183,60,.35)); }
.apply-side h3 { margin-bottom: 14px; color: var(--primary-dark); font-size: 18px; }
.apply-side ul { list-style: none; position: relative; z-index: 1; }
.apply-side li { position: relative; padding-left: 24px; margin-bottom: 12px; color: #5a5360; font-size: 14px; }
.apply-side li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: #fff; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  width: 17px; height: 17px; border-radius: 50%; font-size: 11px;
  display: flex; align-items: center; justify-content: center;
}
.apply-side-contact {
  margin-top: 20px; background: rgba(255,255,255,.85); border-radius: 14px;
  padding: 14px 18px; text-align: center; position: relative; z-index: 1;
}
.apply-side-contact p { font-size: 12px; color: var(--muted); }
.apply-side-contact strong { display: block; font-size: 22px; color: var(--primary-dark); letter-spacing: 1px; }
.apply-side-contact span { font-size: 13px; color: var(--muted); }

/* 关于我们 */
.about-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.about-logo { width: 84px; height: 84px; margin: 0 auto 18px; filter: drop-shadow(0 6px 16px rgba(246,183,60,.4)); }
.about-text h2 { font-size: 30px; font-weight: 800; margin-bottom: 16px; }
.about-text p { color: #5a5360; margin-bottom: 14px; }
.about-tags { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.about-tags span {
  background: #fff; color: var(--primary); font-weight: 600; padding: 9px 20px;
  border-radius: 999px; box-shadow: 0 4px 12px rgba(255,77,109,.1); border: 1px solid #ffdbe3;
}

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.contact-card {
  background: #fff; border-radius: 20px; padding: 28px; text-align: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.05); border: 1px solid var(--line);
  transition: transform .2s ease, box-shadow .2s ease;
}
.contact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.contact-ico {
  width: 58px; height: 58px; margin: 0 auto 12px; border-radius: 50%;
  background: linear-gradient(135deg, #fff0f3, #ffe7d9);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.contact-card h3 { font-size: 14px; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.contact-card p { font-size: 17px; font-weight: 700; }
.contact-card a { color: var(--primary-dark); }

/* 页脚 */
.site-footer { background: linear-gradient(135deg, #2b2233, #3a2836); color: #cfc7d6; padding: 42px 0; }
.footer-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.footer-brand img { width: 52px; height: 52px; object-fit: contain; filter: drop-shadow(0 3px 8px rgba(0,0,0,.4)); }
.footer-name { color: #fff; font-weight: 800; font-size: 18px; }
.footer-slogan { color: #ffb3c2; font-weight: 600; font-size: 14px; }
.site-footer > .container > p { color: #9a92a3; font-size: 13px; }

/* 弹窗 */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal[hidden] { display: none; }
.modal-mask { position: absolute; inset: 0; background: rgba(43,34,51,.55); backdrop-filter: blur(3px); }
.modal-box { position: relative; background: #fff; border-radius: 22px; width: min(440px, 92%); max-height: 86vh; overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.modal-close { position: absolute; top: 12px; right: 16px; background: none; border: none; font-size: 28px; color: #fff; cursor: pointer; z-index: 2; text-shadow: 0 1px 4px rgba(0,0,0,.4); }
.modal-body img { width: 100%; height: 360px; object-fit: cover; border-radius: 22px 22px 0 0; }
.modal-body .m-content { padding: 22px; }
.modal-body h3 { font-size: 22px; margin-bottom: 6px; }
.modal-body .m-meta { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.modal-body .m-intro { color: #5a5360; line-height: 1.8; }

/* 响应式 */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero-title { font-size: 46px; }
  .hero-inner { justify-content: center; text-align: center; }
  .hero-stats { justify-content: center; }
  .hero-card { flex-basis: 300px; }
  .hero-logo { margin-top: -74px; }
  .apply-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .hero-stats { gap: 20px; }
  .form-row.two { grid-template-columns: 1fr; }
  .hero-title { font-size: 40px; }
}

/* ==================== 导航增强 ==================== */
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none; background: var(--primary-soft); color: var(--primary);
  border: none; font-size: 20px; width: 42px; height: 42px; border-radius: 12px; cursor: pointer;
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: flex; position: absolute; top: 70px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff;
    box-shadow: 0 12px 30px rgba(255,77,109,.15); padding: 8px 0;
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { max-height: 380px; }
  .nav-links a { padding: 14px 24px; border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .nav-admin { display: none; }
}

/* ==================== 宣传视频 ==================== */
.promo-section {
  background:
    radial-gradient(700px 340px at 15% 0%, #ffe9ef 0%, transparent 60%),
    linear-gradient(180deg, #fff 0%, #fff7f9 100%);
}
.promo-wrap { display: grid; grid-template-columns: 360px 1fr; gap: 44px; align-items: center; }
.promo-phone {
  position: relative; border-radius: 30px; overflow: hidden; padding: 10px;
  background: linear-gradient(150deg, var(--primary), var(--gold));
  box-shadow: 0 24px 60px rgba(255,77,109,.32);
}
.promo-video { width: 100%; display: block; border-radius: 22px; background: #2b2233; aspect-ratio: 1/1; object-fit: cover; }
.promo-overlay {
  position: absolute; inset: 10px; border-radius: 22px;
  background: linear-gradient(180deg, rgba(43,34,51,.15), rgba(43,34,51,.55));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; color: #fff; cursor: pointer; transition: opacity .3s;
}
.promo-overlay.hide { opacity: 0; pointer-events: none; }
.promo-overlay p { font-weight: 600; letter-spacing: 1px; }
.promo-play {
  width: 76px; height: 76px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,.92); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(0,0,0,.3); animation: pulse 2s infinite;
}
.promo-play svg { margin-left: 4px; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,255,255,.6); }
  70% { box-shadow: 0 0 0 22px rgba(255,255,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); }
}
.promo-side h3 { font-size: 26px; font-weight: 800; margin-bottom: 14px; }
.promo-side > p { color: #5a5360; margin-bottom: 20px; }
.promo-points { list-style: none; margin-bottom: 26px; }
.promo-points li {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px; margin-bottom: 10px;
  background: #fff; border-radius: 14px; box-shadow: 0 4px 14px rgba(255,77,109,.07);
  border: 1px solid var(--line); font-size: 14.5px;
}
.promo-points li span { font-size: 18px; }
.promo-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.promo-controls { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.ctrl-btn {
  background: #fff; border: 1.5px solid var(--line); color: var(--ink);
  padding: 8px 16px; border-radius: 999px; cursor: pointer; font-size: 13.5px; font-weight: 600;
  transition: all .18s;
}
.ctrl-btn:hover { border-color: var(--primary); color: var(--primary); }
.ctrl-bgm.on {
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-color: transparent;
  box-shadow: 0 6px 16px rgba(255,77,109,.25);
}
.volume-row { display: flex; align-items: center; gap: 12px; margin-top: 14px; max-width: 320px; }
.volume-row input[type=range] {
  flex: 1; accent-color: var(--primary); height: 4px; cursor: pointer;
}
.vol-val { font-size: 13px; color: var(--muted); min-width: 28px; text-align: right; }
@media (max-width: 860px) {
  .promo-wrap { grid-template-columns: 1fr; gap: 28px; }
  .promo-phone { max-width: 340px; margin: 0 auto; }
}

/* ==================== 滚动揭示动画 ==================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }

/* ==================== 图片灯箱 ==================== */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(20,14,24,.9);
  display: flex; align-items: center; justify-content: center; padding: 24px;
  animation: fadeIn .25s ease;
}
.lightbox[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.lightbox-close {
  position: absolute; top: 20px; right: 26px; background: none; border: none;
  color: #fff; font-size: 38px; cursor: pointer; line-height: 1;
}

/* ==================== 返回顶部 ==================== */
.back-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 60;
  width: 48px; height: 48px; border-radius: 50%; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  font-size: 20px; box-shadow: 0 10px 26px rgba(255,77,109,.4);
  opacity: 0; transform: translateY(16px); pointer-events: none; transition: all .3s;
}
.back-top.show { opacity: 1; transform: none; pointer-events: auto; }
.back-top:hover { transform: translateY(-3px); }

/* 嘉宾卡片可点击提示 */
.guest-card:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }


/* ==================== 修复：hidden 属性优先级 ==================== */
[hidden] { display: none !important; }