```css
/* ═══════════════════════════════════════════════════════════════
   jmcomic · 漫笔绘心，一页一界 — Comic Ink Design System
   一页一界 · 漫笔筑境
   ═══════════════════════════════════════════════════════════════ */

:root {
  --paper: #FAF6EE;
  --paper-light: #FFFDF8;
  --paper-deep: #F3EDE2;
  --ink: #2B2823;
  --ink-soft: rgba(43, 40, 35, 0.72);
  --ink-faint: rgba(43, 40, 35, 0.42);
  --vermilion: #E85D4A;
  --vermilion-deep: #C94432;
  --vermilion-soft: rgba(232, 93, 74, 0.14);
  --indigo: #3A5BA0;
  --indigo-soft: rgba(58, 91, 160, 0.12);
  --gold: #D4A853;
  --gold-soft: rgba(212, 168, 83, 0.22);
  --teal: #2A9D8F;
  --teal-soft: rgba(42, 157, 143, 0.12);
  --shadow-subtle: 0 2px 12px rgba(43, 40, 35, 0.05);
  --shadow-float: 0 10px 32px rgba(43, 40, 35, 0.1);
  --shadow-offset: 6px 6px 0 rgba(43, 40, 35, 0.1);
  --shadow-offset-sm: 3px 3px 0 rgba(43, 40, 35, 0.12);
  --border-radius-comic: 12px 20px 12px 20px;
}

/* 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-color: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 滚动条 · 手绘质感 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--vermilion), var(--gold));
  border-radius: 8px;
  border: 2px solid var(--paper);
}

::selection {
  background: var(--gold);
  color: var(--ink);
  text-shadow: none;
}

/* ═══════════════ 核心布局 ═══════════════ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--paper-deep);
  background-image:
    radial-gradient(circle, rgba(212, 168, 83, 0.08) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
}

/* ═══════════════ 导航 · 固定顶部 ═══════════════ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 246, 238, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid rgba(43, 40, 35, 0.08);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.8px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo:hover {
  transform: rotate(-2deg) scale(1.02);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px 16px 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  background: linear-gradient(135deg, var(--vermilion), var(--gold));
  color: #fff;
  box-shadow: var(--shadow-offset-sm);
  position: relative;
  overflow: hidden;
}

.logo-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.35) 1px, transparent 1px);
  background-size: 6px 6px;
  opacity: 0.5;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color 0.25s ease;
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.3px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold));
  border-radius: 4px;
  transition: width 0.35s cubic-bezier(0.65, 0.05, 0.36, 1);
}

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

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 10px 18px 10px 18px;
  color: #fff !important;
  font-weight: 700 !important;
  background: linear-gradient(135deg, var(--vermilion), var(--vermilion-deep));
  box-shadow: var(--shadow-offset-sm);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px) rotate(-1deg);
  box-shadow: 4px 4px 0 rgba(43, 40, 35, 0.16);
  color: #fff !important;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1.5px solid var(--ink);
  background: var(--paper-light);
  font-size: 1.2rem;
  font-weight: 800;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  box-shadow: var(--shadow-offset-sm);
  transition: all 0.2s ease;
}

.menu-toggle:hover {
  background: var(--vermilion);
  color: #fff;
  border-color: var(--vermilion);
}

.menu-toggle.open {
  background: var(--vermilion);
  color: #fff;
  border-color: var(--vermilion);
}

/* ═══════════════ Hero ═══════════════ */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 140px 0 100px;
  background:
    radial-gradient(ellipse at 88% 15%, rgba(232, 93, 74, 0.13) 0%, transparent 42%),
    radial-gradient(ellipse at 8% 85%, rgba(58, 91, 160, 0.1) 0%, transparent 38%),
    radial-gradient(ellipse at 45% 60%, rgba(212, 168, 83, 0.07) 0%, transparent 30%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background-image: radial-gradient(circle, rgba(232, 93, 74, 0.14) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent 90%);
  mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent 90%);
  pointer-events: none;
}

.hero::after {
  content: '漫';
  position: absolute;
  bottom: 12%;
  right: 6%;
  font-size: 16rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(232, 93, 74, 0.12);
  font-family: serif;
  pointer-events: none;
  transform: rotate(18deg);
}

.hero-content {
  max-width: 740px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  padding: 6px 18px;
  border-radius: 8px 14px 8px 14px;
  margin-bottom: 22px;
  background: linear-gradient(135deg, var(--vermilion), var(--vermilion-deep));
  color: #fff;
  box-shadow: var(--shadow-offset-sm);
  transform: rotate(-2deg);
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.4rem, 4.8vw, 3.9rem);
  line-height: 1.15;
  margin-bottom: 22px;
  font-weight: 900;
  letter-spacing: -1.5px;
  color: var(--ink);
  text-wrap: balance;
}

.hero h1 span {
  color: var(--vermilion);
  position: relative;
  display: inline-block;
}

.hero h1 span::after {
  content: '';
  position: absolute;
  bottom: 0.04em;
  left: 0;
  width: 100%;
  height: 0.14em;
  background: var(--gold-soft);
  z-index: -1;
  border-radius: 2px;
}

.hero p {
  font-size: 1.12rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.hero-image {
  border-radius: 20px 34px 20px 34px;
  overflow: hidden;
  box-shadow: var(--shadow-offset), 0 20px 60px rgba(43, 40, 35, 0.16);
  position: relative;
  transform: rotate(1.2deg);
  border: 3px solid var(--ink);
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(43,40,35,0.18), transparent 40%);
  z-index: 1;
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-image:hover img {
  transform: scale(1.03);
}

/* ═══════════════ 按钮 ═══════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 12px 20px 12px 20px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--vermilion), var(--vermilion-deep));
  box-shadow: var(--shadow-offset);
}

.btn-primary:hover {
  transform: translate(-2px, -3px) rotate(-1deg);
  box-shadow: 8px 8px 0 rgba(43, 40, 35, 0.14);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: var(--shadow-offset-sm);
  background-color: var(--paper-light);
}

.btn-outline:hover {
  transform: translate(-2px, -3px) rotate(1deg);
  box-shadow: 5px 5px 0 rgba(43, 40, 35, 0.16);
  border-color: var(--vermilion);
  color: var(--vermilion);
}

/* ═══════════════ 标签 / 标题 ═══════════════ */
.section-label {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 2.5px;
  margin-bottom: 14px;
  padding: 4px 16px;
  border-radius: 20px;
  background: var(--vermilion-soft);
  color: var(--vermilion-deep);
  text-transform: uppercase;
  position: relative;
}

.section-label::before {
  content: '✦';
  margin-right: 6px;
  font-size: 0.7rem;
  color: var(--gold);
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 16px;
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.25;
  color: var(--ink);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 70px;
  height: 4px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold), transparent);
  border-radius: 4px;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  line-height: 1.85;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

/* ═══════════════ 卡片网格 ═══════════════ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}

.category-card {
  border-radius: 16px 28px 16px 28px;
  padding: 30px 28px;
  background: var(--paper-light);
  border: 1.5px solid rgba(43, 40, 35, 0.07);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s cubic-bezier(0.65, 0.05, 0.36, 1);
}

.category-card::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-image: radial-gradient(circle, rgba(212, 168, 83, 0.15) 1.5px, transparent 1.5px);
  background-size: 8px 8px;
  transition: transform 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px) rotate(-0.8deg);
  box-shadow: var(--shadow-float), var(--shadow-offset-sm);
  border-color: var(--vermilion);
}

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

.category-card:hover::after {
  transform: scale(1.3) rotate(20deg);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px 22px 14px 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--vermilion-soft);
  color: var(--vermilion-deep);
  box-shadow: var(--shadow-offset-sm);
  transition: all 0.35s ease;
}

.category-card:nth-child(2) .card-icon {
  background: var(--indigo-soft);
  color: var(--indigo);
}

.category-card:nth-child(3) .card-icon {
  background: var(--gold-soft);
  color: #a07c2e;
}

.category-card:nth-child(4) .card-icon {
  background: var(--teal-soft);
  color: var(--teal);
}

.category-card:hover .card-icon {
  transform: scale(1.12) rotate(-6deg);
}

.card-link {
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--vermilion);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  transition: gap 0.25s ease;
}

.card-link::after {
  content: '→';
  transition: transform 0.25s ease;
}

.card-link:hover {
  gap: 10px;
  color: var(--vermilion-deep);
}

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

.feature-image {
  border-radius: 18px 30px 18px 30px;
  overflow: hidden;
  box-shadow: var(--shadow-float);
  border: 2px solid rgba(43, 40, 35, 0.08);
  transform: rotate(-1.5deg);
  position: relative;
  background: var(--paper-light);
}

.feature-image::after {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background-image: radial-gradient(circle, var(--gold) 2px, transparent 2px);
  background-size: 8px 8px;
  opacity: 0.5;
  border-radius: 50%;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.feature-image:hover img {
  transform: scale(1.04) rotate(0.5deg);
}

.feature-text {
  padding: 8px 0;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.6px;
  line-height: 1.3;
}

.feature-text p {
  color: var(--ink-soft);
  opacity: 0.8;
  margin-bottom: 20px;
  line-height: 1.8;
}

.feature-list {
  list-style: none;
  margin-top: 12px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--ink);
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--teal);
  background: var(--teal-soft);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.feature-block:nth-of-type(even) .feature-image {
  transform: rotate(1.5deg);
  order: 2;
}

/* ═══════════════ 数据条 ═══════════════ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 34px 24px;
  border-radius: 16px 28px 16px 28px;
  background: var(--paper-light);
  border: 1.5px solid rgba(43, 40, 35, 0.07);
  box-shadow: var(--shadow-subtle);
  position: relative;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px;
}

.stat-item:nth-child(1)::before { background: var(--vermilion); }
.stat-item:nth-child(2)::before { background: var(--indigo); }
.stat-item:nth-child(3)::before { background: var(--gold); }
.stat-item:nth-child(4)::before { background: var(--teal); }

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float), var(--shadow-offset-sm);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1;
  background: linear-gradient(135deg, var(--vermilion), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.stat-item:nth-child(2) .stat-number {
  background: linear-gradient(135deg, var(--indigo), var(--teal));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item:nth-child(3) .stat-number {
  background: linear-gradient(135deg, #b8860b, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item:nth-child(4) .stat-number {
  background: linear-gradient(135deg, var(--teal), var(--indigo));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-number::after {
  content: '+';
  font-size: 1.6rem;
  margin-left: 2px;
  vertical-align: top;
  opacity: 0.7;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.62;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--ink-soft);
}

/* ═══════════════ 内容墙 ═══════════════ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}

.content-wall-item {
  border-radius: 14px 26px 14px 26px;
  overflow: hidden;
  background: var(--paper-light);
  border: 1.5px solid rgba(43, 40, 35, 0.06);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-subtle);
  position: relative;
}

.content-wall-item:nth-child(even) {
  border-radius: 26px 14px 26px 14px;
  transform: translateY(6px);
}

.content-wall-item:nth-child(3n) {
  border-radius: 20px 12px 24px 12px;
  transform: rotate(0.6deg);
}

.content-wall-item:hover {
  transform: translateY(-6px) rotate(-0.5deg);
  box-shadow: var(--shadow-float), var(--shadow-offset-sm);
  border-color: rgba(232, 93, 74, 0.5);
}

.content-wall-item:nth-child(even):hover {
  transform: translateY(-6px) rotate(0.5deg);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

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

.content-wall-body h3 {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.content-wall-body p {
  font-size: 0.88rem;
  color: var(--ink-soft);
  opacity: 0.65;
  line-height: 1.6;
}

.content-wall-body .card-link {
  margin-top: 12px;
  font-size: 0.82rem;
}

/* ═══════════════ FAQ ═══════════════ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1.5px solid rgba(43, 40, 35, 0.08);
  border-radius: 14px 24px 14px 24px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--paper-light);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-subtle);
}

.faq-item:hover {
  border-color: rgba(232, 93, 74, 0.4);
  transform: translateX(4px);
}

.faq-item.open {
  border-color: var(--vermilion);
  box-shadow: var(--shadow-float);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.02rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--ink);
  transition: color 0.2s ease;
  position: relative;
}

.faq-item .faq-question::before {
  content: attr(data-index);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--vermilion);
  background: var(--vermilion-soft);
  padding: 2px 8px;
  border-radius: 10px;
  margin-right: 4px;
  flex-shrink: 0;
}

.faq-item .faq-question::after {
  content: '＋';
  font-weight: 300;
  font-size: 1.4rem;
  color: var(--vermilion);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item.open .faq-question::after {
  content: '×';
  transform: rotate(180deg);
  font-weight: 700;
}

.faq-item.open .faq-question {
  color: var(--vermilion-deep);
}

.faq-item .faq-answer {
  padding: 0 26px 22px;
  display: none;
  opacity: 0.7;
  color: var(--ink-soft);
  line-height: 1.85;
  border-top: 1px dashed rgba(43, 40, 35, 0.1);
  margin-top: -2px;
  padding-top: 16px;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeInUp 0.4s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* ═══════════════ CTA 横幅 ═══════════════ */
.cta-banner {
  padding: 70px 40px;
  text-align: center;
  border-radius: 20px 36px 20px 36px;
  color: #fff;
  background:
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.18) 0%, transparent 35%),
    radial-gradient(circle at 15% 85%, rgba(255,255,255,0.1) 0%, transparent 30%),
    linear-gradient(135deg, var(--vermilion), var(--vermilion-deep));
  box-shadow: var(--shadow-offset), var(--shadow-float);
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(43, 40, 35, 0.15);
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.25) 1.5px, transparent 1.5px);
  background-size: 20px 20px;
  opacity: 0.3;
  pointer-events: none;
}

.cta-banner::after {
  content: '✦';
  position: absolute;
  top: 24px;
  left: 36px;
  font-size: 1.6rem;
  color: var(--gold);
  transform: rotate(20deg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(20deg); }
  50% { transform: translateY(-10px) rotate(25deg); }
}

.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
  text-shadow: 2px 2px 0 rgba(43, 40, 35, 0.2);
  position: relative;
  z-index: 1;
}

.cta-banner p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.cta-banner .btn-primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.25);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translate(-2px, -3px);
  box-shadow: 6px 6px 0 rgba(255, 255, 255, 0.28);
}

/* ═══════════════ 页脚 ═══════════════ */
.site-footer {
  padding: 72px 0 28px;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(43, 40, 35, 0.015) 0px,
      rgba(43, 40, 35, 0.015) 1px,
      transparent 1px,
      transparent 8px
    ),
    var(--paper-deep);
  border-top: 1px solid rgba(43, 40, 35, 0.08);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold), var(--indigo), var(--teal));
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 300px;
}

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

.footer-brand p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  opacity: 0.7;
  line-height: 1.8;
  margin-top: 14px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--ink);
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold));
  border-radius: 4px;
}

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

.footer-col ul li {
  padding: 6px 0;
}

.footer-col ul li a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.9rem;
  transition: all 0.2s ease;
  padding: 2px 0;
  display: inline-block;
}

.footer-col ul li a:hover {
  color: var(--vermilion);
  transform: translateX(4px);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(43, 40, 35, 0.1);
  margin-top: 8px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

.footer-bottom a {
  color: var(--vermilion);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* ═══════════════ 工具类 ═══════════════ */
.text-accent {
  color: var(--vermilion);
  font-weight: 800;
}

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

.text-center .section-title::after,
.text-center.section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 52px;
  opacity: 0.7;
  text-align: center;
  line-height: 1.85;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

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

/* 装饰性分区分隔线 */
.section-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--vermilion), var(--gold));
  border-radius: 4px;
  margin: 0 auto 40px;
}

/* Halo 效果:选中态 */
.hero h1::selection,
.section-title::selection {
  background: var(--gold);
  color: var(--ink);
}

/* 背景光晕装饰 */
.decorative-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

/* 照片圆标装饰 */
.photo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--paper-light);
  border-radius: 30px;
  padding: 8px 18px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: var(--shadow-offset-sm);
  color: var(--ink);
}

/* ═══════════════ 响应式 ═══════════════ */
@media (max-width: 992px) {
  .feature-block {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 110px 0 70px;
  }

  .hero::after {
    font-size: 9rem;
    opacity: 0.4;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

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

  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(250, 246, 238, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    border-bottom: 1px solid rgba(43, 40, 35, 0.1);
    box-shadow: var(--shadow-float);
  }

  .main-nav.open {
    display: flex;
    animation: slideDown 0.3s ease both;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .main-nav a {
    font-size: 1.02rem;
    padding: 8px 0;
    width: 100%;
  }

  .nav-cta {
    width: auto;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-buttons {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .section {
    padding: 70px 0;
  }

  .cta-banner {
    padding: 48px 28px;
  }

  .cta-banner h2 {
    font-size: 1.7rem;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
    gap: 18px;
  }

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

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .hero h1 {
    font-size: 1.9rem;
    letter-spacing: -0.5px;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

  .main-nav {
    top: 64px;
  }

  .container {
    padding: 0 18px;
  }

  .section {
    padding: 56px 0;
  }

  .stat-number {
    font-size: 2rem;
  }

  .cta-banner {
    padding: 40px 20px;
    border-radius: 14px 28px 14px 28px;
  }

  .cta-banner::after {
    display: none;
  }
}

/* 动效开启时 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}