:root {
  --bg: #070708;
  --bg-soft: #0f0f12;
  --panel: rgba(18, 18, 22, .82);
  --panel-strong: #141216;
  --text: #f7efe1;
  --muted: #c8b99d;
  --muted-2: #9f927b;
  --gold: #e4b865;
  --gold-soft: #ffe1a0;
  --red: #7f1b18;
  --red-soft: #bc3d30;
  --line: rgba(228, 184, 101, .22);
  --shadow: 0 22px 70px rgba(0, 0, 0, .42);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% -5%, rgba(228, 184, 101, .18), transparent 30rem),
    radial-gradient(circle at 8% 10%, rgba(127, 27, 24, .28), transparent 28rem),
    linear-gradient(180deg, #050506 0%, #0a0a0c 44%, #110b0b 100%);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.72;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

ul {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

.container {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  z-index: 999;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--gold);
  color: #120b07;
}

.skip-link:focus {
  left: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(228, 184, 101, .16);
  background: rgba(6, 6, 8, .78);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(255, 225, 160, .45);
  border-radius: 16px;
  background:
    radial-gradient(circle at 65% 25%, rgba(255, 225, 160, .42), transparent 40%),
    linear-gradient(135deg, #26120f, #0b0b0e);
  color: var(--gold-soft);
  box-shadow: 0 12px 34px rgba(228, 184, 101, .16);
}

.brand-text {
  font-size: 22px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border: 1px solid rgba(228, 184, 101, .14);
  border-radius: 999px;
  background: rgba(255, 255, 255, .03);
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: .2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  background: linear-gradient(135deg, rgba(228, 184, 101, .22), rgba(127, 27, 24, .22));
  color: var(--gold-soft);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .04);
  color: var(--text);
  padding: 10px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px 0;
  border-radius: 2px;
  background: var(--gold-soft);
}

.nav-toggle em {
  display: none;
}

.hero {
  position: relative;
  padding: 86px 0 60px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -8% auto;
  height: 520px;
  background:
    radial-gradient(circle at 70% 10%, rgba(228, 184, 101, .25), transparent 26rem),
    radial-gradient(circle at 18% 30%, rgba(188, 61, 48, .18), transparent 22rem);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  align-items: center;
  gap: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(228, 184, 101, .08);
  color: var(--gold-soft);
  font-size: 14px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--gold);
  box-shadow: 0 0 18px var(--gold);
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(42px, 6vw, 74px);
  letter-spacing: -.05em;
}

.hero h1 span,
.section-title span {
  color: var(--gold-soft);
}

.hero-copy {
  max-width: 640px;
  margin-top: 22px;
  font-size: 18px;
}

.hero-actions,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, #f4cc79, #af6f2d);
  color: #140c06;
  box-shadow: 0 18px 46px rgba(228, 184, 101, .22);
}

.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, .04);
  color: var(--gold-soft);
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: 34px;
  border: 1px solid rgba(228, 184, 101, .28);
  box-shadow: var(--shadow);
}

.hero-card {
  position: absolute;
  right: 22px;
  bottom: 22px;
  max-width: 320px;
  padding: 18px;
  border: 1px solid rgba(255, 225, 160, .22);
  border-radius: 22px;
  background: rgba(7, 7, 8, .76);
  backdrop-filter: blur(16px);
}

.hero-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--gold-soft);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.stat {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .035);
}

.stat strong {
  display: block;
  font-size: 26px;
  color: var(--gold-soft);
}

.stat span {
  color: var(--muted-2);
  font-size: 14px;
}

.section {
  padding: 72px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-title {
  max-width: 760px;
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -.03em;
}

.section-lead {
  max-width: 640px;
  font-size: 16px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card-grid.four {
  grid-template-columns: repeat(4, 1fr);
}

.card,
.feature-card,
.topic-card,
.feedback-card,
.faq-item,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 16px 48px rgba(0, 0, 0, .22);
}

.card {
  overflow: hidden;
}

.media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: #0c0c0f;
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease, filter .35s ease;
}

.play-badge {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: .25s ease;
  background: rgba(0, 0, 0, .28);
}

.play-badge::before {
  content: "播放";
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  border: 1px solid rgba(255, 225, 160, .62);
  border-radius: 50%;
  background: rgba(7, 7, 8, .72);
  color: var(--gold-soft);
  font-weight: 800;
}

.card:hover .media img {
  transform: scale(1.04);
  filter: saturate(1.14);
}

.card:hover .play-badge {
  opacity: 1;
}

.card-body {
  padding: 20px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid rgba(228, 184, 101, .18);
  border-radius: 999px;
  background: rgba(228, 184, 101, .08);
  color: var(--gold-soft);
  font-size: 12px;
}

.rating {
  margin-left: auto;
  color: var(--gold-soft);
  font-weight: 700;
}

.card h3,
.feature-card h3,
.topic-card h3,
.feedback-card h3,
.contact-card h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.card p,
.feature-card p,
.topic-card p,
.feedback-card p,
.contact-card p {
  font-size: 15px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-card {
  padding: 24px;
}

.feature-icon {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(228, 184, 101, .28), rgba(127, 27, 24, .28));
  color: var(--gold-soft);
  font-weight: 800;
}

.split {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  align-items: center;
  gap: 34px;
}

.split-visual img {
  border: 1px solid var(--line);
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(228, 184, 101, .08), rgba(127, 27, 24, .08)),
    rgba(255, 255, 255, .035);
}

.check-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--gold-soft);
  font-weight: 800;
}

.nav-blocks {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.nav-block {
  min-height: 116px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255,255,255,.04), rgba(228,184,101,.06));
  color: var(--muted);
  transition: .2s ease;
}

.nav-block strong {
  display: block;
  margin-bottom: 6px;
  color: var(--gold-soft);
}

.nav-block:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 225, 160, .42);
}

.topic-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.topic-card {
  overflow: hidden;
}

.topic-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.topic-card .topic-content {
  padding: 22px;
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feedback-card {
  padding: 24px;
}

.feedback-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.feedback-head img {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.feedback-head strong {
  color: var(--gold-soft);
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 22px;
}

.faq-item h3 {
  font-size: 18px;
}

.page-hero {
  padding: 76px 0 40px;
  border-bottom: 1px solid rgba(228, 184, 101, .14);
  background:
    radial-gradient(circle at 76% 0%, rgba(228, 184, 101, .18), transparent 30rem),
    radial-gradient(circle at 16% 30%, rgba(127, 27, 24, .2), transparent 24rem);
}

.page-hero h1 {
  max-width: 900px;
  font-size: clamp(38px, 5vw, 66px);
  letter-spacing: -.04em;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted-2);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--gold-soft);
}

.filter-bar,
.calendar-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-bar span,
.calendar-list span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.03);
}

.timeline {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.035);
}

.timeline-item time {
  color: var(--gold-soft);
  font-weight: 800;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.contact-card {
  padding: 26px;
}

.form-shell {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.form-shell label {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.form-shell input,
.form-shell textarea,
.form-shell select {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid rgba(228, 184, 101, .22);
  border-radius: 14px;
  background: rgba(255, 255, 255, .04);
  color: var(--text);
  font: inherit;
}

.form-shell textarea {
  min-height: 120px;
  resize: vertical;
}

.form-shell small {
  color: var(--muted-2);
}

.site-footer {
  margin-top: 56px;
  padding: 56px 0 24px;
  border-top: 1px solid rgba(228, 184, 101, .16);
  background: #060607;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .8fr .9fr;
  gap: 34px;
}

.footer-brand {
  margin-bottom: 18px;
}

.site-footer h2 {
  margin-bottom: 14px;
  font-size: 18px;
  color: var(--gold-soft);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--gold-soft);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(228, 184, 101, .10);
}

.back-top {
  color: var(--gold-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: .55s ease;
}

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

@media (max-width: 1080px) {
  .site-nav {
    gap: 0;
  }

  .site-nav a {
    padding: 9px 10px;
  }

  .card-grid.four,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav-blocks {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 28px, var(--max));
  }

  .header-inner {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    left: 14px;
    right: 14px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border-radius: 22px;
    padding: 12px;
    background: rgba(8, 8, 10, .96);
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 14px;
  }

  .hero {
    padding: 44px 0 34px;
  }

  .hero-card {
    position: static;
    margin-top: 14px;
  }

  .stats,
  .card-grid,
  .card-grid.four,
  .feature-grid,
  .topic-row,
  .feedback-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .section-head {
    display: block;
  }

  .nav-blocks {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: start;
  }
}

@media (max-width: 520px) {
  .brand-text {
    font-size: 19px;
  }

  .hero h1,
  .page-hero h1 {
    letter-spacing: -.035em;
  }

  .hero-actions,
  .action-row {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .nav-blocks {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 22px;
  }

  .card-body {
    padding: 18px;
  }
}