/* ==========================================================================
   本子漫画 · benzimanhuaz.com.cn
   墨染纸页 · 漫衍乾坤
   Design System — "Ink Scroll / 墨卷"
   宣纸肌理 × 漫画分镜 × 朱砂印章
   ========================================================================== */

:root {
  --paper: #FBF7EE;
  --paper-deep: #F1E8D7;
  --paper-card: #FFFDF8;
  --ink: #2F3E42;
  --ink-soft: #6B7B80;
  --ink-faint: #9AA8AC;
  --vermilion: #E85D3A;
  --vermilion-deep: #C94427;
  --vermilion-pale: rgba(232, 93, 58, 0.08);
  --matcha: #94A389;
  --matcha-deep: #6E8066;
  --border-warm: #E4D8C0;
  --border-ink: #2F3E42;
  --shadow-manga: 6px 6px 0 rgba(47, 62, 66, 0.14);
  --shadow-soft: 0 8px 32px rgba(47, 62, 66, 0.08);
  --shadow-float: 0 16px 44px rgba(47, 62, 66, 0.14);
}

/* ==========================================================================
   基础重置
   ========================================================================== */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  overflow-x: hidden;
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background-image:
    radial-gradient(circle at 12% 90%, rgba(232, 93, 58, 0.05) 0%, transparent 32%),
    radial-gradient(circle at 88% 8%, rgba(148, 163, 137, 0.06) 0%, transparent 28%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 998;
  opacity: 0.025;
  background-image: repeating-radial-gradient(
    circle at 30% 50%,
    rgba(47, 62, 66, 0.18) 0px 0.5px,
    transparent 0.5px 1.6px
  );
}

::selection {
  background: var(--vermilion);
  color: var(--paper);
}

::-webkit-scrollbar {
  width: 11px;
}

::-webkit-scrollbar-track {
  background: var(--paper-deep);
}

::-webkit-scrollbar-thumb {
  background: #C8B493;
  border-radius: 8px;
  border: 3px solid var(--paper-deep);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--vermilion);
}

/* ==========================================================================
   核心布局
   ========================================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--paper-deep);
}

.section::before {
  content: attr(data-section-num);
  position: absolute;
  top: 28px;
  right: 4%;
  font-size: 4.5rem;
  font-weight: 900;
  color: rgba(47, 62, 66, 0.04);
  letter-spacing: -4px;
  line-height: 1;
  user-select: none;
  pointer-events: none;
}

/* ==========================================================================
   导航 — 固定顶部
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 247, 238, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-warm);
  transition: box-shadow 0.3s ease;
}

.site-header:hover {
  box-shadow: 0 2px 20px rgba(47, 62, 66, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: 0.06em;
  transition: color 0.2s ease;
}

.logo:hover {
  color: var(--vermilion);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 900;
  background: var(--vermilion);
  color: var(--paper);
  box-shadow: inset 0 0 0 2px var(--paper), inset 0 0 0 3.5px var(--vermilion-deep);
  transform: rotate(-3deg);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(6deg) scale(1.05);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.04em;
  position: relative;
  padding: 4px 2px;
  transition: color 0.25s ease;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--vermilion);
  transition: width 0.35s cubic-bezier(0.19, 1, 0.22, 1);
  border-radius: 2px;
}

.main-nav a:not(.nav-cta):hover {
  color: var(--vermilion);
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 8px 22px;
  border-radius: 100px;
  background: var(--vermilion);
  color: var(--paper) !important;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 3px 3px 0 rgba(232, 93, 58, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(232, 93, 58, 0.4);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1.5px solid var(--border-warm);
  border-radius: 10px;
  background: transparent;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  z-index: 1001;
}

.menu-toggle::before,
.menu-toggle::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.3s ease;
}

.menu-toggle::before {
  transform: translateY(-5px);
}

.menu-toggle::after {
  transform: translateY(5px);
}

.menu-toggle.open::before {
  transform: rotate(45deg);
}

.menu-toggle.open::after {
  transform: rotate(-45deg);
}

/* ==========================================================================
   首页 Hero
   ========================================================================== */

.hero {
  min-height: 82vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 64px;
  overflow: hidden;
  background: linear-gradient(
    to right,
    var(--paper) 0%,
    var(--paper) 45%,
    rgba(241, 232, 215, 0.55) 100%
  );
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -4%;
  width: 48%;
  height: 65%;
  background-image: radial-gradient(circle, rgba(47, 62, 66, 0.055) 1.2px, transparent 1.2px);
  background-size: 15px 15px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 10%, transparent 68%);
  mask-image: radial-gradient(ellipse at center, black 10%, transparent 68%);
  pointer-events: none;
}

.hero::after {
  content: '漫';
  position: absolute;
  right: 5%;
  bottom: 6%;
  font-size: clamp(4rem, 8vw, 7.5rem);
  font-weight: 900;
  color: rgba(232, 93, 58, 0.07);
  transform: rotate(8deg);
  line-height: 1;
  pointer-events: none;
  letter-spacing: 0;
  border: 5px solid rgba(232, 93, 58, 0.05);
  padding: 0.08em 0.15em;
  border-radius: 6px;
}

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

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 16px 5px 10px;
  border-radius: 100px;
  background: var(--vermilion-pale);
  color: var(--vermilion-deep);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  border: 1px solid rgba(232, 93, 58, 0.16);
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: var(--vermilion);
  box-shadow: inset 0 0 0 2px var(--paper);
}

.hero h1 {
  font-size: clamp(2.75rem, 6.2vw, 4.9rem);
  line-height: 1.1;
  margin-bottom: 18px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--ink);
}

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

.hero h1 .text-accent::under {
  content: '';
  position: absolute;
}

.hero h1 .text-accent::after {
  content: '';
  position: absolute;
  left: -2%;
  bottom: 0.04em;
  width: 104%;
  height: 0.16em;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 10' preserveAspectRatio='none'%3E%3Cpath d='M0,6 C25,2 50,9 75,5 C85,3 95,5 100,4' fill='none' stroke='%23E85D3A' stroke-width='2.5' opacity='0.35'/%3E%3C/svg%3E") repeat-x top center / 40px 100%;
}

.hero p {
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: 34px;
  line-height: 1.85;
}

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

.hero-image {
  border-radius: 16px;
  overflow: hidden;
  border: 2.5px solid var(--border-ink);
  box-shadow: var(--shadow-manga);
  background: var(--paper-card);
  position: relative;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1.5px solid var(--border-warm);
  border-radius: 10px;
  pointer-events: none;
  z-index: 2;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.92) sepia(0.05);
  transition: transform 0.5s ease;
}

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

/* ==========================================================================
   按钮
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
  letter-spacing: 0.03em;
}

.btn-primary {
  background: var(--vermilion);
  color: var(--paper);
  box-shadow: 4px 4px 0 rgba(232, 93, 58, 0.35);
}

.btn-primary:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(232, 93, 58, 0.35);
  background: var(--vermilion-deep);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  box-shadow: 3px 3px 0 rgba(47, 62, 66, 0.12);
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 rgba(47, 62, 66, 0.12);
}

/* ==========================================================================
   标签 / 标题
   ========================================================================== */

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--vermilion-deep);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-label::before {
  content: '';
  width: 22px;
  height: 4px;
  background: var(--vermilion);
  border-radius: 3px;
  box-shadow: 0 0 0 2px var(--paper), 0 0 0 3.5px var(--vermilion);
}

.section-label::after {
  content: '卷';
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-left: 4px;
  letter-spacing: 0;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.35rem);
  margin-bottom: 12px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.25;
}

.section-desc {
  max-width: 620px;
  color: var(--ink-soft);
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.8;
}

/* ==========================================================================
   卡片网格
   ========================================================================== */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  background: var(--paper-card);
  border-radius: 14px;
  padding: 30px 26px 26px;
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-manga);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.28s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: attr(data-index);
  position: absolute;
  top: -12px;
  right: -8px;
  font-size: 4.8rem;
  font-weight: 900;
  color: rgba(47, 62, 66, 0.045);
  letter-spacing: -4px;
  line-height: 1;
  pointer-events: none;
}

.category-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 34px;
  height: 34px;
  background-repeat: no-repeat;
  background-image:
    linear-gradient(45deg, transparent 49%, var(--border-warm) 50%, var(--border-warm) 54%, transparent 55%),
    linear-gradient(45deg, transparent 45%, var(--border-warm) 46%, var(--border-warm) 50%, transparent 51%);
  background-size: 12px 12px;
  opacity: 0.4;
}

.category-card:hover {
  transform: translate(-3px, -3px) rotate(-0.5deg);
  box-shadow: 9px 9px 0 rgba(232, 93, 58, 0.18), 0 20px 40px rgba(47, 62, 66, 0.1);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background-color: var(--vermilion-pale);
  background-image: radial-gradient(circle, rgba(47, 62, 66, 0.08) 0.8px, transparent 0.8px);
  background-size: 7px 7px;
  border: 1.5px solid rgba(232, 93, 58, 0.2);
  color: var(--vermilion-deep);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.category-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 18px;
  line-height: 1.7;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--vermilion-deep);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.04em;
  transition: gap 0.2s ease;
}

.card-link::after {
  content: '⟶';
  font-size: 1rem;
  transition: transform 0.25s ease;
}

.card-link:hover {
  gap: 10px;
}

/* ==========================================================================
   特性块
   ========================================================================== */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  border: 2.5px solid var(--border-ink);
  box-shadow: var(--shadow-manga);
  background: var(--paper-card);
  position: relative;
}

.feature-image::after {
  content: 'GENRE';
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: var(--vermilion);
  color: var(--paper);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  padding: 4px 12px;
  border-radius: 4px;
  z-index: 2;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-text {
  padding: 0;
}

.feature-text .section-label {
  margin-bottom: 10px;
}

.feature-text .section-title {
  margin-bottom: 14px;
}

.feature-text p {
  color: var(--ink-soft);
  margin-bottom: 24px;
  line-height: 1.8;
}

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

.feature-list li {
  padding: 9px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px dashed var(--border-warm);
  transition: padding-left 0.25s ease;
}

.feature-list li:hover {
  padding-left: 8px;
}

.feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--matcha);
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 900;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.4);
  content: '✓';
  line-height: 1;
}

/* ==========================================================================
   数据条
   ========================================================================== */

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

.stat-item {
  padding: 30px 20px;
  border-radius: 16px;
  background: var(--paper-card);
  border: 1.5px solid var(--border-warm);
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: var(--vermilion);
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--vermilion);
  transition: width 0.3s ease;
  border-radius: 3px;
}

.stat-item:hover::after {
  width: 60%;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.stat-number em {
  font-style: normal;
  color: var(--vermilion);
  font-size: 0.6em;
  vertical-align: super;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   内容墙
   ========================================================================== */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 20px;
}

.content-wall-item {
  border-radius: 14px;
  overflow: hidden;
  background: var(--paper-card);
  border: 2px solid var(--border-ink);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.28s ease;
  position: relative;
}

.content-wall-item:hover {
  transform: translate(-2px, -2px) rotate(-0.4deg);
  box-shadow: 8px 8px 0 rgba(232, 93, 58, 0.15), 0 18px 40px rgba(47, 62, 66, 0.1);
}

.content-wall-item img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid var(--border-ink);
  transition: transform 0.4s ease;
}

.content-wall-item:hover img {
  transform: scale(1.03);
}

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

.content-wall-body h3 {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--ink);
  line-height: 1.4;
}

.content-wall-body p {
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 12px;
}

.content-wall-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--matcha);
  color: var(--paper);
  letter-spacing: 0.06em;
  margin-top: 6px;
}

.content-wall-item:nth-child(even) .content-wall-tag {
  background: var(--vermilion);
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1.5px solid var(--border-warm);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--paper-card);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(232, 93, 58, 0.5);
}

.faq-item.open {
  border-color: var(--vermilion);
  box-shadow: 4px 4px 0 rgba(232, 93, 58, 0.12);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  font-size: 0.98rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--ink);
  letter-spacing: 0.02em;
  user-select: none;
}

.faq-item .faq-question::before {
  content: '問';
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: var(--vermilion);
  color: var(--paper);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 800;
  margin-right: 4px;
  box-shadow: 2px 2px 0 rgba(232, 93, 58, 0.3);
}

.faq-item .faq-question::after {
  content: '⌄';
  font-size: 1.2rem;
  color: var(--ink-faint);
  transition: transform 0.3s ease;
  margin-left: auto;
}

.faq-item.open .faq-question::after {
  transform: rotate(180deg);
  color: var(--vermilion);
}

.faq-item .faq-answer {
  padding: 0 22px 20px 60px;
  display: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.8;
  position: relative;
}

.faq-item .faq-answer::before {
  content: '答';
  position: absolute;
  left: 22px;
  top: 2px;
  width: 26px;
  height: 26px;
  background: var(--matcha);
  color: var(--paper);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 800;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFade 0.35s ease;
}

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   CTA 横幅
   ========================================================================== */

.cta-banner {
  padding: 64px 30px;
  text-align: center;
  border-radius: 20px;
  background: var(--vermilion);
  color: var(--paper);
  position: relative;
  overflow: hidden;
  box-shadow: 8px 8px 0 rgba(232, 93, 58, 0.18);
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 30%),
    radial-gradient(circle, rgba(255, 255, 255, 0.05) 1.5px, transparent 1.5px);
  background-size: auto, 18px 18px;
  pointer-events: none;
}

.cta-banner::after {
  content: '漫';
  position: absolute;
  right: 2%;
  bottom: -10%;
  font-size: 12rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.04);
  transform: rotate(10deg);
  line-height: 1;
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--paper);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  color: rgba(251, 247, 238, 0.8);
  margin-bottom: 28px;
  font-size: 1rem;
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary {
  background: var(--paper);
  color: var(--vermilion-deep);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.12);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  background: var(--paper);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   页脚
   ========================================================================== */

.site-footer {
  padding: 60px 0 28px;
  background: var(--paper-deep);
  border-top: 2px solid var(--border-warm);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--vermilion) 20%, var(--vermilion) 80%, transparent);
  opacity: 0.3;
}

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

.footer-brand {
  padding-right: 20px;
}

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

.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 18px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.08em;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 26px;
  height: 2px;
  background: var(--vermilion);
  border-radius: 2px;
}

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

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.87rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col ul a:hover {
  color: var(--vermilion);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(47, 62, 66, 0.08);
  margin-top: 20px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

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

/* ==========================================================================
   工具类
   ========================================================================== */

.text-accent {
  color: var(--vermilion);
  font-weight: 700;
}

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

.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.8;
}

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

/* ==========================================================================
   补充示例装饰类
   ========================================================================== */

.halftone-dots {
  background-image: radial-gradient(circle, rgba(47, 62, 66, 0.07) 1px, transparent 1px);
  background-size: 12px 12px;
}

.manga-panel {
  border: 2.5px solid var(--border-ink);
  border-radius: 12px;
  background: var(--paper-card);
  box-shadow: var(--shadow-manga);
  position: relative;
}

.manga-panel::after {
  content: '';
  position: absolute;
  inset: 7px;
  border: 1.5px solid var(--border-warm);
  border-radius: 8px;
  pointer-events: none;
}

.stamp-red {
  display: inline-block;
  padding: 0.12em 0.24em;
  background: var(--vermilion);
  color: var(--paper);
  font-weight: 900;
  font-size: 0.72rem;
  line-height: 1.4;
  border-radius: 4px;
  transform: rotate(-5deg);
  box-shadow: inset 0 0 0 2px var(--paper), inset 0 0 0 3px var(--vermilion-deep);
  letter-spacing: 0.12em;
  margin-left: 8px;
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 992px) {
  .hero {
    min-height: 70vh;
    padding: 100px 0 48px;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.5rem);
  }

  .hero::after {
    font-size: 5rem;
    right: 4%;
    bottom: 10%;
  }

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

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

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

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

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

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

  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-warm);
    box-shadow: 0 16px 32px rgba(47, 62, 66, 0.08);
    animation: navSlideDown 0.3s ease;
  }

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

  @keyframes navSlideDown {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 40px;
  }

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

  .hero h1 {
    font-size: clamp(2.2rem, 7vw, 3.2rem);
  }

  .hero p {
    font-size: 0.98rem;
  }

  .hero .hero-image {
    margin-top: 32px;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .section-title {
    font-size: 1.6rem;
  }

  .section::before {
    font-size: 3.2rem;
    top: 18px;
    right: 6%;
  }
}

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .logo {
    font-size: 1.05rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .hero {
    padding: 88px 0 32px;
  }

  .hero h1 {
    font-size: 2rem;
    line-height: 1.2;
  }

  .hero-eyebrow {
    font-size: 0.76rem;
  }

  .hero::after {
    font-size: 3.4rem;
    right: 3%;
    bottom: 12%;
  }

  .hero::before {
    width: 70%;
  }

  .stats-bar {
    gap: 12px;
  }

  .stat-item {
    padding: 20px 14px;
  }

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

  .section {
    padding: 48px 0;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .section-desc {
    margin-bottom: 28px;
  }

  .cta-banner {
    padding: 48px 20px;
    border-radius: 14px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }

  .content-wall-item img {
    height: 180px;
  }

  .card-icon {
    width: 46px;
    height: 46px;
    font-size: 1.2rem;
  }
}

/* ==========================================================================
   动画增强
   ========================================================================== */

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

.hero-image {
  animation: floatSlow 5s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hero-image {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}