:root {
  --champagne: #f7f2e8;
  --champagne-deep: #efe6d4;
  --ivory: #fcfaf5;
  --gold: #b8934a;
  --gold-light: #d8bb7f;
  --gold-deep: #8a6a2e;
  --ink: #2b2418;
  --ink-soft: #5c5344;
  --ink-mute: #8d8474;
  --line: rgba(184, 147, 74, 0.28);
  --line-soft: rgba(184, 147, 74, 0.14);
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --shadow-soft: 0 24px 60px -32px rgba(74, 58, 28, 0.35);
  --shadow-card: 0 18px 44px -28px rgba(74, 58, 28, 0.32);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --radius: 3px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(216, 187, 127, 0.18), transparent 60%),
    radial-gradient(900px 520px at -5% 20%, rgba(239, 230, 212, 0.9), transparent 55%),
    var(--champagne);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 0.6em;
}

p {
  margin: 0 0 1.1em;
  color: var(--ink-soft);
}

a {
  color: var(--gold-deep);
  text-decoration: none;
  transition: color 0.4s var(--ease);
}

a:hover {
  color: var(--gold);
}

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

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.text-accent {
  color: var(--gold-deep);
  font-family: var(--serif);
  font-style: italic;
  letter-spacing: 0.08em;
}

.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

.seo-description {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--ink-mute);
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  letter-spacing: 0.05em;
}

/* ============ 布局 ============ */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  position: relative;
  padding: 120px 0;
}

.section + .section {
  padding-top: 40px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 26px;
}

.section-label::before {
  content: "";
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-label::after {
  content: "❋";
  font-size: 0.62rem;
  color: var(--gold-light);
  letter-spacing: 0;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 26px;
  position: relative;
  color: var(--ink);
}

.section-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 1px;
  background: var(--gold);
  margin-top: 22px;
  opacity: 0.7;
}

.text-center .section-title::after,
.section-title.text-center::after {
  margin-left: auto;
  margin-right: auto;
}

.section-desc {
  max-width: 660px;
  font-size: 1rem;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
  line-height: 2;
}

.text-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ============ 导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 250, 245, 0.86);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.header-inner {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--serif);
  font-size: 1.24rem;
  letter-spacing: 0.22em;
  color: var(--ink);
  white-space: nowrap;
}

.logo-icon {
  width: 42px;
  height: 42px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold-deep);
  font-family: var(--serif);
  font-size: 0.9rem;
  letter-spacing: 0;
  background: radial-gradient(circle at 30% 25%, #fffdf7, var(--champagne-deep));
  box-shadow: inset 0 0 0 4px rgba(252, 250, 245, 0.9), 0 6px 18px -12px rgba(138, 106, 46, 0.6);
}

.logo-icon::before {
  content: "萬";
  font-weight: 500;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  margin-left: auto;
}

.main-nav a {
  position: relative;
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  padding: 6px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transform: translateX(-50%);
  transition: width 0.45s var(--ease);
}

.main-nav a:hover {
  color: var(--gold-deep);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 26px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(252, 250, 245, 0.9), rgba(239, 230, 212, 0.9));
  font-family: var(--serif);
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
  transition: all 0.45s var(--ease);
  white-space: nowrap;
}

.nav-cta::after {
  content: "→";
  font-size: 0.8rem;
  transition: transform 0.45s var(--ease);
}

.nav-cta:hover {
  background: var(--gold-deep);
  color: var(--ivory);
  box-shadow: 0 14px 30px -18px rgba(138, 106, 46, 0.9);
}

.nav-cta:hover::after {
  transform: translateX(4px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: border-color 0.4s var(--ease);
}

.menu-toggle::before,
.menu-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1px;
  background: var(--gold-deep);
  transform: translateX(-50%);
  transition: transform 0.4s var(--ease);
}

.menu-toggle::before { top: 18px; }
.menu-toggle::after { bottom: 18px; }

.menu-toggle:hover {
  border-color: var(--gold);
}

/* ============ 首页 Hero ============ */
.hero {
  position: relative;
  padding: 130px 0 110px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 600px at 78% 20%, rgba(216, 187, 127, 0.16), transparent 65%),
    radial-gradient(500px 400px at 15% 80%, rgba(239, 230, 212, 0.75), transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  top: 60px;
  right: 8%;
  width: 1px;
  height: 220px;
  background: linear-gradient(180deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: var(--serif);
  font-size: 0.8rem;
  letter-spacing: 0.4em;
  color: var(--gold-deep);
  margin-bottom: 34px;
  padding: 8px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(252, 250, 245, 0.6);
}

.hero-eyebrow::before {
  content: "◆";
  font-size: 0.5rem;
  color: var(--gold);
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: 0.08em;
  margin-bottom: 30px;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold-deep);
  position: relative;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 8px;
  background: linear-gradient(90deg, rgba(216, 187, 127, 0.45), transparent);
  z-index: -1;
}

.hero p {
  font-size: 1.05rem;
  max-width: 520px;
  line-height: 2.1;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 44px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
}

.hero-image {
  position: absolute;
  top: 90px;
  right: -40px;
  width: 46%;
  max-width: 560px;
  aspect-ratio: 4 / 5;
  border-radius: 2px;
  background:
    linear-gradient(150deg, rgba(252, 250, 245, 0.4), rgba(239, 230, 212, 0.2)),
    radial-gradient(circle at 70% 30%, rgba(216, 187, 127, 0.4), transparent 55%),
    linear-gradient(200deg, var(--champagne-deep), var(--ivory));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  z-index: 1;
}

.hero-image::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid var(--line-soft);
  border-radius: 1px;
}

.hero-image::after {
  content: "❖";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 5rem;
  color: rgba(184, 147, 74, 0.28);
  font-family: var(--serif);
}

/* ============ 按钮 ============ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 40px;
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.5s var(--ease);
  overflow: hidden;
  background: transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-deep), #a8843d 55%, var(--gold));
  color: var(--ivory);
  box-shadow: 0 18px 40px -22px rgba(138, 106, 46, 0.9);
}

.btn-primary::after {
  content: "→";
  font-size: 0.85rem;
  transition: transform 0.5s var(--ease);
}

.btn-primary:hover {
  color: var(--ivory);
  box-shadow: 0 26px 52px -24px rgba(138, 106, 46, 0.95);
  transform: translateY(-2px);
}

.btn-primary:hover::after {
  transform: translateX(6px);
}

.btn-outline {
  color: var(--gold-deep);
  border-color: var(--gold);
  background: rgba(252, 250, 245, 0.4);
}

.btn-outline:hover {
  background: var(--champagne-deep);
  color: var(--gold-deep);
  border-color: var(--gold-deep);
  transform: translateY(-2px);
}

/* ============ 卡片 ============ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 64px;
}

.category-card {
  position: relative;
  padding: 48px 36px 40px;
  background: linear-gradient(170deg, rgba(252, 250, 245, 0.96), rgba(247, 242, 232, 0.96));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: transform 0.55s var(--ease), box-shadow 0.55s var(--ease), border-color 0.55s var(--ease);
  overflow: hidden;
}

.category-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.6s var(--ease);
}

.category-card::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 130px;
  height: 130px;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  transition: transform 0.6s var(--ease);
}

.category-card:hover {
  transform: translateY(-8px);
  border-color: var(--line);
  box-shadow: 0 32px 64px -32px rgba(74, 58, 28, 0.45);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.category-card:hover::after {
  transform: scale(1.15);
}

.card-icon {
  width: 62px;
  height: 62px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  color: var(--gold-deep);
  font-family: var(--serif);
  font-size: 1.5rem;
  background: radial-gradient(circle at 30% 20%, #fffdf8, var(--champagne-deep));
  box-shadow: inset 0 0 0 5px rgba(252, 250, 245, 0.85);
  position: relative;
  z-index: 2;
}

.category-card h3 {
  font-size: 1.3rem;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.category-card p {
  font-size: 0.94rem;
  line-height: 1.95;
  color: var(--ink-mute);
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
  position: relative;
  z-index: 2;
}

.card-link::after {
  content: "→";
  transition: transform 0.45s var(--ease);
}

.card-link:hover::after {
  transform: translateX(6px);
}

/* ============ 特性 ============ */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  padding: 40px 0;
}

.feature-block:nth-child(even) .feature-image {
  order: 2;
}

.feature-image {
  position: relative;
  aspect-ratio: 5 / 6;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 30% 25%, rgba(216, 187, 127, 0.35), transparent 50%),
    linear-gradient(160deg, var(--ivory), var(--champagne-deep));
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.feature-image::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid var(--line-soft);
}

.feature-image::after {
  content: "✧";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  color: rgba(184, 147, 74, 0.3);
}

.feature-text .section-label {
  margin-bottom: 20px;
}

.feature-text h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.feature-text p {
  color: var(--ink-soft);
  line-height: 2.05;
  margin-bottom: 32px;
}

.feature-list {
  display: grid;
  gap: 18px;
}

.feature-list li {
  position: relative;
  padding-left: 36px;
  font-size: 0.96rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  line-height: 1.9;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 18px;
  height: 1px;
  background: var(--gold);
}

.feature-list li::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 0.42em;
  width: 5px;
  height: 5px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  transform: rotate(45deg);
}

/* ============ 数据 ============ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0 auto;
  padding: 64px 40px;
  background: linear-gradient(150deg, rgba(252, 250, 245, 0.92), rgba(239, 230, 212, 0.75));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  box-shadow: var(--shadow-soft);
}

.stat-item {
  position: relative;
  text-align: center;
  padding: 0 24px;
}

.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12%;
  bottom: 12%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line), transparent);
}

.stat-number {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--gold-deep);
  line-height: 1.1;
  margin-bottom: 14px;
}

.stat-number::after {
  content: "°";
  font-size: 0.5em;
  vertical-align: super;
  color: var(--gold-light);
  margin-left: 2px;
}

.stat-label {
  display: block;
  font-family: var(--serif);
  font-size: 0.85rem;
  letter-spacing: 0.24em;
  color: var(--ink-mute);
}

/* ============ 内容墙 ============ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
  margin-top: 56px;
}

.content-wall-item {
  position: relative;
  background: rgba(252, 250, 245, 0.9);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
  display: flex;
  flex-direction: column;
}

.content-wall-item::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, var(--gold-light), var(--gold), var(--gold-light));
  opacity: 0.55;
  transition: opacity 0.5s var(--ease);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  border-color: var(--line);
  box-shadow: var(--shadow-card);
}

.content-wall-item:hover::before {
  opacity: 1;
}

.content-wall-body {
  padding: 36px 34px 38px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.content-wall-body .section-label {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  margin-bottom: 18px;
}

.content-wall-body h3 {
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  line-height: 1.55;
  margin-bottom: 14px;
}

.content-wall-body p {
  font-size: 0.92rem;
  color: var(--ink-mute);
  line-height: 1.95;
  margin-bottom: 24px;
}

.content-wall-body .card-link {
  margin-top: auto;
}

/* ============ 问答 ============ */
.faq-list {
  max-width: 840px;
  margin: 56px auto 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.faq-item {
  border-bottom: 1px solid var(--line-soft);
  padding: 0;
  transition: background 0.5s var(--ease);
}

.faq-item:hover {
  background: rgba(252, 250, 245, 0.55);
}

.faq-question {
  position: relative;
  padding: 30px 64px 30px 8px;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: color 0.4s var(--ease);
}

.faq-question::before {
  content: "Q";
  font-size: 0.72rem;
  color: var(--gold-deep);
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0;
  background: rgba(252, 250, 245, 0.9);
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-family: var(--serif);
  color: var(--gold);
  transition: transform 0.45s var(--ease);
}

.faq-item:hover .faq-question::after {
  transform: translateY(-50%) rotate(90deg);
}

.faq-answer {
  padding: 0 64px 32px 58px;
  font-size: 0.94rem;
  line-height: 2;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}

/* ============ 横幅 ============ */
.cta-banner {
  position: relative;
  margin: 90px auto;
  padding: 84px 48px;
  text-align: center;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(700px 340px at 50% 0%, rgba(216, 187, 127, 0.22), transparent 70%),
    linear-gradient(165deg, rgba(252, 250, 245, 0.95), rgba(239, 230, 212, 0.9));
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.cta-banner::before,
.cta-banner::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
}

.cta-banner::before {
  top: -90px;
  left: -90px;
}

.cta-banner::after {
  bottom: -90px;
  right: -90px;
}

.cta-banner .section-label {
  justify-content: center;
  margin-bottom: 22px;
}

.cta-banner h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.cta-banner p {
  max-width: 560px;
  margin: 0 auto 38px;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
}

/* ============ 页脚 ============ */
.site-footer {
  position: relative;
  margin-top: 60px;
  padding: 90px 0 0;
  background:
    radial-gradient(800px 400px at 20% 0%, rgba(216, 187, 127, 0.14), transparent 65%),
    linear-gradient(180deg, rgba(239, 230, 212, 0.55), rgba(247, 242, 232, 0.95));
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 64px;
}

.footer-brand .logo {
  margin-bottom: 24px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 2.05;
  color: var(--ink-mute);
  max-width: 300px;
  letter-spacing: 0.05em;
}

.footer-col h4 {
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0.24em;
  color: var(--ink);
  margin-bottom: 26px;
  position: relative;
  padding-bottom: 16px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 1px;
  background: var(--gold);
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col li,
.footer-col a {
  font-size: 0.9rem;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  transition: color 0.4s var(--ease), padding-left 0.4s var(--ease);
}

.footer-col a:hover {
  color: var(--gold-deep);
  padding-left: 6px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

.footer-bottom a {
  color: var(--ink-mute);
}

.footer-bottom a:hover {
  color: var(--gold-deep);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .header-inner,
  .container {
    padding-left: 28px;
    padding-right: 28px;
  }

  .main-nav {
    gap: 26px;
  }

  .hero-image {
    width: 42%;
    right: -20px;
    opacity: 0.85;
  }

  .feature-block {
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 88px 0;
  }

  .section + .section {
    padding-top: 24px;
  }

  .header-inner {
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .main-nav,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .hero {
    padding: 90px 0 70px;
  }

  .hero-image {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    max-width: 480px;
    aspect-ratio: 4 / 3;
    margin: 56px auto 0;
    opacity: 1;
  }

  .hero-content {
    max-width: 100%;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .feature-block:nth-child(even) .feature-image {
    order: 0;
  }

  .feature-image {
    aspect-ratio: 4 / 3;
    max-width: 520px;
    margin: 0 auto;
    width: 100%;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: 48px 20px;
    row-gap: 40px;
  }

  .stat-item + .stat-item::before {
    display: none;
  }

  .stat-item:nth-child(even)::before {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    top: 10%;
    bottom: 10%;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--line), transparent);
  }

  .cta-banner {
    padding: 64px 28px;
    margin: 64px auto;
  }

  .faq-question {
    padding: 24px 48px 24px 4px;
    font-size: 1rem;
  }

  .faq-answer {
    padding: 0 16px 26px 52px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .container,
  .header-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .section {
    padding: 68px 0;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .logo {
    font-size: 1.05rem;
    letter-spacing: 0.14em;
    gap: 10px;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 0.8rem;
  }

  .hero h1 {
    font-size: 2.1rem;
    letter-spacing: 0.06em;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-top: 44px;
  }

  .category-card {
    padding: 38px 26px 34px;
  }

  .content-wall {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    padding: 40px 8px;
  }

  .stat-item {
    padding: 0 12px;
  }

  .cta-banner {
    padding: 52px 22px;
    margin: 48px auto;
  }

  .site-footer {
    padding-top: 64px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 24px;
    padding-bottom: 44px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}