/* ============================================
   亿万28 - 紫金奢华 · 几何装饰设计系统
   风格：暖白基底 + 紫罗兰渐变 + 琥珀金点缀
   ============================================ */

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #FFFBF8;
  color: #1E1B2E;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   排版基础
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: #1A1423;
}

p { margin-bottom: 0.8rem; }

a { color: #7C3AED; transition: color 0.2s ease; }
a:hover { color: #6D28D9; }

::selection {
  background: #7C3AED;
  color: #fff;
}

/* ============================================
   核心布局
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section:nth-child(even) {
  background: #F8F5FF;
}

/* 几何装饰背景 — 每个section右上方装饰圆 */
.section::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.section:nth-child(even)::before {
  background: radial-gradient(circle, rgba(245,158,11,0.05) 0%, transparent 70%);
}

.section > * { position: relative; z-index: 1; }

/* ============================================
   导航 — 固定顶部 · 紫晶质感
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 251, 248, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(124, 58, 237, 0.10);
  transition: background 0.3s ease;
}

.site-header.scrolled {
  background: rgba(255, 251, 248, 0.98);
  box-shadow: 0 4px 30px rgba(124, 58, 237, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: #1A1423;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  background: linear-gradient(135deg, #7C3AED, #A78BFA);
  color: #fff;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
  position: relative;
}

.logo-icon::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: linear-gradient(135deg, #F59E0B, #FCD34D);
  z-index: -1;
  opacity: 0.4;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: #4B3B6B;
  transition: all 0.25s ease;
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #7C3AED, #A78BFA);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.main-nav a:hover { color: #7C3AED; }
.main-nav a:hover::after { width: 100%; }

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 10px !important;
  background: linear-gradient(135deg, #7C3AED, #9B6DFF) !important;
  color: #fff !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.25);
  transition: all 0.3s ease !important;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124, 58, 237, 0.35) !important;
  color: #fff !important;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
}

.menu-toggle span {
  width: 24px;
  height: 2.5px;
  background: #4B3B6B;
  border-radius: 4px;
  transition: 0.3s ease;
}

/* ============================================
   Hero — 紫金交织
   ============================================ */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #FFFBF8 0%, #F8F5FF 40%, #FFF5E6 100%);
}

.hero::before {
  content: '28';
  position: absolute;
  right: 5%;
  top: 15%;
  font-size: 28vw;
  font-weight: 900;
  color: rgba(124, 58, 237, 0.04);
  line-height: 1;
  pointer-events: none;
  letter-spacing: -0.05em;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 2px solid rgba(245, 158, 11, 0.10);
  pointer-events: none;
}

.hero-content {
  max-width: 680px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(245,158,11,0.12), rgba(245,158,11,0.04));
  color: #B45309;
  border: 1px solid rgba(245,158,11,0.15);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.1;
  margin-bottom: 20px;
  color: #1A1423;
  letter-spacing: -0.5px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #7C3AED, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: #6B5E7E;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero装饰图形 */
.hero-image {
  position: absolute;
  right: 2%;
  top: 50%;
  transform: translateY(-50%);
  width: 42%;
  max-width: 520px;
  z-index: 1;
  pointer-events: none;
}

.hero-image .geo-shape {
  position: relative;
  width: 100%;
  padding-bottom: 80%;
}

.hero-image .geo-shape::before {
  content: '';
  position: absolute;
  top: 10%;
  right: 10%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(167,139,250,0.06));
  border: 2px solid rgba(124,58,237,0.10);
}

.hero-image .geo-shape::after {
  content: '';
  position: absolute;
  bottom: 15%;
  left: 5%;
  width: 120px;
  height: 120px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(245,158,11,0.10), rgba(252,211,77,0.04));
  border: 2px solid rgba(245,158,11,0.12);
  transform: rotate(30deg);
}

.hero-image .geo-diamond {
  position: absolute;
  top: 25%;
  left: 20%;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #7C3AED, #A78BFA);
  transform: rotate(45deg);
  border-radius: 8px;
  opacity: 0.15;
}

.hero-image .geo-circle {
  position: absolute;
  bottom: 25%;
  right: 15%;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #F59E0B, #FCD34D);
  opacity: 0.2;
}

/* ============================================
   按钮系统
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #7C3AED, #9B6DFF);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(124, 58, 237, 0.35);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #6D28D9, #7C3AED);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary:hover::before { opacity: 1; }

.btn-primary span { position: relative; z-index: 1; }

.btn-outline {
  background: transparent;
  border: 2px solid #D1C4E9;
  color: #4B3B6B;
}

.btn-outline:hover {
  border-color: #7C3AED;
  color: #7C3AED;
  background: rgba(124, 58, 237, 0.04);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  color: #fff;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
}

.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(245, 158, 11, 0.35);
}

/* ============================================
   标签 / 标题区
   ============================================ */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  color: #7C3AED;
  text-transform: uppercase;
  background: rgba(124, 58, 237, 0.06);
  padding: 4px 16px;
  border-radius: 20px;
  border: 1px solid rgba(124, 58, 237, 0.08);
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 16px;
  color: #1A1423;
  letter-spacing: -0.3px;
}

.section-title .gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title .purple {
  background: linear-gradient(135deg, #7C3AED, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  max-width: 600px;
  color: #6B5E7E;
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.7;
}

/* ============================================
   卡片网格 — 紫边金点
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: 16px;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid rgba(124, 58, 237, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7C3AED, #A78BFA, #F59E0B);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.category-card:hover::before { opacity: 1; }

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.10);
  border-color: rgba(124, 58, 237, 0.15);
}

.category-card::after {
  content: '◆';
  position: absolute;
  bottom: 16px;
  right: 20px;
  font-size: 1.4rem;
  color: rgba(124, 58, 237, 0.06);
  font-weight: 300;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(167,139,250,0.04));
  color: #7C3AED;
  position: relative;
}

.card-icon .emoji { position: relative; z-index: 1; }

.category-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #1A1423;
}

.category-card p {
  font-size: 0.875rem;
  color: #6B5E7E;
  margin-bottom: 16px;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: #7C3AED;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.card-link:hover { gap: 8px; color: #6D28D9; }

/* ============================================
   特性块 — 图文交错
   ============================================ */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, rgba(124,58,237,0.04), rgba(245,158,11,0.04));
  border: 1px solid rgba(124,58,237,0.06);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-image .placeholder-graphic {
  width: 100%;
  padding-bottom: 70%;
  position: relative;
  background: linear-gradient(160deg, rgba(124,58,237,0.04), rgba(245,158,11,0.04));
}

.feature-image .placeholder-graphic::before {
  content: '◆';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  font-size: 6rem;
  color: rgba(124,58,237,0.06);
}

.feature-image .placeholder-graphic::after {
  content: '●';
  position: absolute;
  top: 30%;
  right: 20%;
  font-size: 3rem;
  color: rgba(245,158,11,0.06);
}

.feature-image img { width: 100%; height: 100%; object-fit: cover; }

.feature-text {
  padding: 0;
}

.feature-text h3 {
  font-size: 1.5rem;
  margin-bottom: 14px;
  color: #1A1423;
}

.feature-text p {
  color: #6B5E7E;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.feature-list {
  list-style: none;
  margin-top: 8px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #4B3B6B;
  font-size: 0.9rem;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: #F59E0B;
  font-size: 0.85rem;
}

/* ============================================
   数据条 — 大数字
   ============================================ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 32px 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(124, 58, 237, 0.06);
  transition: all 0.3s ease;
  position: relative;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124, 58, 237, 0.08);
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, #7C3AED, #F59E0B);
  border-radius: 3px;
  opacity: 0.3;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #7C3AED, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-number.gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.875rem;
  color: #6B5E7E;
  margin-top: 8px;
  font-weight: 500;
}

/* ============================================
   内容墙 — 图文卡片
   ============================================ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(124, 58, 237, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.10);
  border-color: rgba(124, 58, 237, 0.12);
}

.content-wall-item .card-thumb {
  width: 100%;
  height: 210px;
  object-fit: cover;
  background: linear-gradient(160deg, rgba(124,58,237,0.06), rgba(245,158,11,0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.content-wall-item .card-thumb .placeholder-icon {
  font-size: 3rem;
  opacity: 0.15;
}

.content-wall-item img { width: 100%; height: 210px; object-fit: cover; display: block; }

.content-wall-body {
  padding: 24px 22px 26px;
}

.content-wall-body .meta {
  font-size: 0.75rem;
  color: #9A8AB0;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  font-weight: 600;
}

.content-wall-body h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: #1A1423;
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.875rem;
  color: #6B5E7E;
  margin-bottom: 0;
}

.content-wall-body .read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #7C3AED;
  text-decoration: none;
  transition: gap 0.3s ease;
}

.content-wall-body .read-more:hover { gap: 8px; }

/* ============================================
   FAQ — 手风琴
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(124, 58, 237, 0.08);
  border-radius: 14px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(124, 58, 237, 0.15);
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.04);
}

.faq-item.open {
  border-color: rgba(124, 58, 237, 0.15);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.06);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #1A1423;
  transition: color 0.3s ease;
  user-select: none;
}

.faq-item.open .faq-question {
  color: #7C3AED;
}

.faq-item .faq-question .toggle-icon {
  font-size: 1.2rem;
  color: #9A8AB0;
  transition: transform 0.3s ease;
  display: inline-block;
}

.faq-item.open .faq-question .toggle-icon {
  transform: rotate(45deg);
  color: #7C3AED;
}

.faq-item .faq-answer {
  padding: 0 24px 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  color: #6B5E7E;
  font-size: 0.9rem;
  line-height: 1.7;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open .faq-answer {
  padding: 0 24px 20px;
  max-height: 300px;
  opacity: 1;
}

/* ============================================
   CTA横幅 — 紫金渐变
   ============================================ */
.cta-banner {
  padding: 64px 32px;
  text-align: center;
  border-radius: 20px;
  background: linear-gradient(135deg, #7C3AED, #6D28D9, #5B21B6);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,0.12), transparent 60%);
  pointer-events: none;
}

.cta-banner::after {
  content: '◆';
  position: absolute;
  bottom: 20px;
  left: 30px;
  font-size: 4rem;
  color: rgba(255,255,255,0.03);
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 14px;
  position: relative;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto 28px;
  font-size: 1rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #7C3AED;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.cta-banner .btn-gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  color: #fff;
  box-shadow: 0 4px 20px rgba(245,158,11,0.3);
}

.cta-banner .btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(245,158,11,0.4);
}

/* ============================================
   页脚 — 深紫底蕴
   ============================================ */
.site-footer {
  padding: 64px 0 28px;
  background: #1A1423;
  color: rgba(255,255,255,0.7);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7C3AED, #F59E0B, #7C3AED);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-col ul a:hover {
  color: #F59E0B;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

/* ============================================
   工具类
   ============================================ */
.text-accent {
  color: #7C3AED;
}

.text-gold {
  background: linear-gradient(135deg, #D97706, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: #6B5E7E;
  font-size: 0.95rem;
  line-height: 1.7;
}

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

/* 金色装饰线 */
.gold-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #D97706, #F59E0B);
  border-radius: 3px;
  margin: 0 auto 16px;
}

/* 紫色装饰点 */
.dot-grid {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}

.dot-grid span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D1C4E9;
}

.dot-grid span:nth-child(2) { background: #7C3AED; }
.dot-grid span:nth-child(3) { background: #F59E0B; }

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.8rem; }
  .hero-image { width: 35%; }
  .section-title { font-size: 1.9rem; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .hero-image { display: none; }
  .hero::before { font-size: 40vw; right: -10%; top: 5%; }

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

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-number { font-size: 2rem; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(255, 251, 248, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px 28px;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
    border-bottom: 1px solid rgba(124,58,237,0.06);
  }

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

  .menu-toggle { display: flex; }

  .section { padding: 60px 0; }
  .section-title { font-size: 1.6rem; }
  .cards-grid { gap: 20px; }

  .content-wall { gap: 20px; }

  .cta-banner { padding: 48px 24px; }
  .cta-banner h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn { width: 100%; justify-content: center; }

  .hero h1 { font-size: 1.8rem; }
  .hero-eyebrow { font-size: 0.7rem; padding: 4px 12px; }

  .section-title { font-size: 1.4rem; }
  .stat-item { padding: 24px 16px; }

  .feature-block { gap: 28px; }

  .faq-item .faq-question { font-size: 0.85rem; padding: 14px 16px; }
  .faq-item .faq-answer { font-size: 0.8rem; }

  .site-footer { padding: 40px 0 20px; }
  .footer-brand p { max-width: 100%; }
}

/* ============================================
   额外装饰 — 几何光晕
   ============================================ */
.geo-glow {
  position: relative;
}

.geo-glow::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.03), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* 卡片内小装饰 */
.card-corner {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 24px;
  height: 24px;
  border-top: 2px solid rgba(124,58,237,0.08);
  border-right: 2px solid rgba(124,58,237,0.08);
  border-radius: 0 6px 0 0;
  pointer-events: none;
}

/* 大号数字装饰（用于特定区块） */
.number-accent {
  font-size: 8rem;
  font-weight: 900;
  line-height: 0.8;
  color: rgba(124,58,237,0.04);
  position: absolute;
  right: 20px;
  bottom: 10px;
  pointer-events: none;
  letter-spacing: -0.04em;
  z-index: 0;
}

/* ============================================
   平滑滚动 & 动画基础
   ============================================ */
html {
  scroll-behavior: smooth;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.float-anim {
  animation: float 6s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(124,58,237,0.1); }
  50% { box-shadow: 0 0 40px rgba(124,58,237,0.2); }
}

.pulse-glow {
  animation: pulse-glow 3s ease-in-out infinite;
}