```css
/* =====================================================
   黑料网不打烊 · 真相不掉线
   Visual System: Neo-Brutalist Editorial Zine
   ===================================================== */

:root {
  --paper: #FFFDF7;
  --paper-alt: #F2ECE2;
  --ink: #1B1F23;
  --coral: #FF5D45;
  --teal: #0E9494;
  --yellow: #FFD45E;
  --header-h: 68px;
  --border: 2px solid var(--ink);
  --hard-shadow: 6px 6px 0 var(--ink);
}

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

::selection {
  background: var(--coral);
  color: #fff;
}

::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--paper);
  border-left: 2px solid var(--ink);
}
::-webkit-scrollbar-thumb {
  background: var(--teal);
  border: 2px solid var(--ink);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(27, 31, 35, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 31, 35, 0.04) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

@keyframes float-drift {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-10px) rotate(1.5deg); }
}

@keyframes blink-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255, 93, 69, 0.45); }
  50% { opacity: 0.6; box-shadow: 0 0 0 8px rgba(255, 93, 69, 0); }
}

@keyframes pressIn {
  0% { transform: translate(0, 0); box-shadow: 4px 4px 0 var(--ink); }
  100% { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--ink); }
}

/* ---------- 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-color: var(--paper-alt);
  border-top: 2px dashed rgba(27, 31, 35, 0.12);
  border-bottom: 2px dashed rgba(27, 31, 35, 0.12);
}

/* ---------- 导航 ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 253, 247, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--ink);
  box-shadow: 0 2px 0 rgba(27, 31, 35, 0.06);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.5px;
  line-height: 1;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border-radius: 0;
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-6deg);
  animation: float-drift 4s ease-in-out infinite;
  color: var(--ink);
  font-weight: 900;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  padding: 8px 14px;
  border: 2px solid transparent;
  display: inline-block;
  transition: all 0.2s ease;
  position: relative;
}

.main-nav a:not(.nav-cta):hover {
  border-color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transform: translate(-2px, -2px);
  background: rgba(255, 212, 94, 0.25);
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 10px 22px !important;
  background: var(--coral);
  color: #fff !important;
  border: 2px solid var(--ink) !important;
  border-radius: 0;
  box-shadow: 3px 3px 0 var(--ink);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.82rem !important;
  letter-spacing: 0.5px;
}

.nav-cta:hover {
  animation: pressIn 0.15s ease forwards;
  background: var(--coral);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  background: var(--yellow);
  border: 2px solid var(--ink);
  border-radius: 0;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink);
  color: var(--ink);
  transition: all 0.2s;
}

.menu-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}

/* ---------- 首页 Hero ---------- */

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '爆料';
  position: absolute;
  top: 90px;
  right: 3%;
  font-size: clamp(5rem, 12vw, 9rem);
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 2px rgba(27, 31, 35, 0.12);
  pointer-events: none;
  z-index: 1;
  transform: rotate(10deg);
  letter-spacing: -4px;
  line-height: 1;
}

.hero::after {
  content: '随时更新';
  position: absolute;
  bottom: 40px;
  right: 10%;
  font-size: 0.85rem;
  font-weight: 800;
  background: var(--yellow);
  border: 2px solid var(--ink);
  padding: 6px 16px;
  transform: rotate(-4deg);
  box-shadow: 3px 3px 0 var(--ink);
  letter-spacing: 2px;
  z-index: 1;
  color: var(--ink);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
}

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

.hero-content h1 {
  font-size: clamp(2.8rem, 6vw, 4.4rem);
  line-height: 1.12;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -2.5px;
  position: relative;
}

.hero-content h1 .text-accent {
  color: var(--coral);
  position: relative;
  display: inline-block;
  font-style: italic;
  letter-spacing: -1px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 6px 18px;
  background: var(--teal);
  color: #fff;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  margin-bottom: 22px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transform: rotate(-2deg);
  position: relative;
}

.hero-eyebrow::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--coral);
  border-radius: 50%;
  margin-left: 8px;
  animation: blink-dot 1.5s infinite;
}

.hero p {
  font-size: 1.12rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-image {
  border: var(--border);
  border-radius: 0;
  overflow: hidden;
  box-shadow: 10px 10px 0 var(--ink);
  position: relative;
  transform: rotate(2deg);
  background: var(--paper-alt);
}

.hero-image::before {
  content: '24h 在线';
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--coral);
  color: #fff;
  padding: 6px 18px;
  font-weight: 800;
  font-size: 0.82rem;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  z-index: 3;
  transform: rotate(3deg);
  letter-spacing: 1px;
}

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 93, 69, 0.18), transparent 45%);
  pointer-events: none;
  z-index: 2;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: contrast(1.05) saturate(1.1);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 0;
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid var(--ink);
  text-decoration: none;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  position: relative;
}

.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 5px 5px 0 var(--ink);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--ink);
  background: #ff6a52;
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
}

.btn-outline:hover {
  background: var(--yellow);
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--ink);
}

.btn-outline:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

/* ---------- 标签/标题 ---------- */

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 2.5px;
  margin-bottom: 16px;
  color: var(--ink);
  background: var(--yellow);
  padding: 5px 14px;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  text-transform: uppercase;
  transform: rotate(-1deg);
  position: relative;
}

.section-label::before {
  content: '● ';
  color: var(--coral);
}

.section-title {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  margin-bottom: 16px;
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.2;
  position: relative;
}

.section-desc {
  max-width: 600px;
  opacity: 0.72;
  margin-bottom: 44px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---------- 卡片网格 ---------- */

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

.category-card {
  border: var(--border);
  border-radius: 0;
  padding: 30px 28px 26px;
  background: #fff;
  transition: all 0.2s ease;
  position: relative;
  box-shadow: none;
}

.category-card::before {
  content: '◆';
  position: absolute;
  top: 14px;
  right: 18px;
  font-size: 14px;
  color: var(--coral);
  opacity: 0.55;
  transition: opacity 0.2s, transform 0.3s;
}

.category-card:nth-child(3n+1) {
  transform: rotate(-0.4deg);
}

.category-card:nth-child(3n+2) {
  transform: rotate(0.4deg);
}

.category-card:nth-child(3n+3) {
  transform: rotate(-0.2deg);
}

.category-card:hover {
  transform: rotate(-0.8deg) translate(-4px, -4px);
  box-shadow: 10px 10px 0 var(--ink);
  background: var(--paper);
}

.category-card:hover::before {
  opacity: 1;
  transform: rotate(180deg) scale(1.3);
  color: var(--teal);
}

.card-icon {
  width: 52px;
  height: 52px;
  border: 2px solid var(--ink);
  background: var(--teal);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  font-weight: 900;
  transform: rotate(-5deg);
  box-shadow: 3px 3px 0 var(--ink);
  transition: all 0.2s;
}

.category-card:hover .card-icon {
  transform: rotate(5deg) scale(1.1);
  background: var(--coral);
}

.card-link {
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--teal);
  position: relative;
  display: inline-block;
  margin-top: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card-link::after {
  content: ' →';
  transition: transform 0.2s;
  display: inline-block;
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* ---------- 特性块 ---------- */

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

.feature-image {
  border: var(--border);
  border-radius: 0;
  overflow: hidden;
  box-shadow: 8px 8px 0 var(--ink);
  position: relative;
  transform: rotate(-1.5deg);
  background: var(--paper-alt);
}

.feature-image::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 30px;
  width: 100px;
  height: 26px;
  background: rgba(255, 212, 94, 0.75);
  border-left: 2px solid var(--ink);
  border-right: 2px solid var(--ink);
  transform: rotate(-3deg);
  z-index: 3;
  box-shadow: 2px 2px 0 rgba(27, 31, 35, 0.3);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(14, 148, 148, 0.12), transparent 50%);
  pointer-events: none;
}

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

.feature-text {
  position: relative;
}

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

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.feature-text p {
  opacity: 0.72;
  line-height: 1.7;
  margin-bottom: 24px;
}

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

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  border-bottom: 1px dashed rgba(27, 31, 35, 0.2);
  font-size: 0.95rem;
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--ink);
  background: var(--yellow);
  border: 1.5px solid var(--ink);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.8rem;
  box-shadow: 2px 2px 0 var(--ink);
}

/* ---------- 数据条 ---------- */

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

.stat-item {
  padding: 30px 20px;
  border: var(--border);
  border-radius: 0;
  background: #fff;
  position: relative;
  transition: all 0.2s ease;
  cursor: default;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 56px;
  height: 14px;
  background: rgba(255, 212, 94, 0.75);
  border-left: 1.5px solid var(--ink);
  border-right: 1.5px solid var(--ink);
  opacity: 0;
  transition: opacity 0.2s;
}

.stat-item::after {
  content: '●';
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 8px;
  color: var(--coral);
}

.stat-item:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--ink);
  background: var(--paper);
}

.stat-item:hover::before {
  opacity: 1;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--coral);
  letter-spacing: -1px;
  line-height: 1.1;
  display: inline-block;
  position: relative;
}

.stat-number::after {
  content: '+';
  font-size: 1.2rem;
  vertical-align: top;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.65;
  margin-top: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ---------- 内容墙 ---------- */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border: var(--border);
  border-radius: 0;
  overflow: hidden;
  background: #fff;
  transition: all 0.2s ease;
  position: relative;
}

.content-wall-item:nth-child(3n+1) {
  transform: rotate(-0.6deg);
}

.content-wall-item:nth-child(3n+2) {
  transform: rotate(0.5deg);
}

.content-wall-item:nth-child(3n) {
  transform: rotate(-0.3deg);
}

.content-wall-item:hover {
  transform: rotate(-1deg) translateY(-6px);
  box-shadow: 10px 10px 0 var(--ink);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 2px solid var(--ink);
  display: block;
  transition: transform 0.4s ease;
}

.content-wall-item:hover img {
  transform: scale(1.04);
}

.content-wall-body {
  padding: 22px;
  font-weight: 600;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  line-height: 1.45;
  margin-bottom: 8px;
}

.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.68;
  line-height: 1.6;
  font-weight: 400;
}

.content-wall-body .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--coral);
  border: 1.5px solid var(--coral);
  padding: 3px 10px;
  margin-top: 12px;
  background: rgba(255, 93, 69, 0.08);
}

/* ---------- FAQ ---------- */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: var(--border);
  border-radius: 0;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: all 0.2s ease;
}

.faq-item:hover {
  box-shadow: 4px 4px 0 var(--ink);
  transform: translate(-2px, -2px);
}

.faq-item.open {
  background: rgba(255, 212, 94, 0.35);
  box-shadow: 5px 5px 0 var(--ink);
  transform: translate(-2px, -2px);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  gap: 16px;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 900;
  transition: all 0.25s ease;
  color: var(--teal);
  line-height: 1;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(135deg);
  color: var(--coral);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.78;
  line-height: 1.7;
  border-top: 1.5px dashed rgba(27, 31, 35, 0.2);
  padding-top: 14px;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ---------- CTA横幅 ---------- */

.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border: var(--border);
  border-radius: 0;
  background: var(--teal);
  box-shadow: 10px 10px 0 var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
  transform: rotate(-0.3deg);
}

.cta-banner::before {
  content: '▲';
  position: absolute;
  top: 8px;
  left: 24px;
  font-size: 70px;
  opacity: 0.12;
  transform: rotate(18deg);
  line-height: 1;
}

.cta-banner::after {
  content: '●';
  position: absolute;
  bottom: -30px;
  right: 30px;
  font-size: 90px;
  opacity: 0.1;
  line-height: 1;
}

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -1px;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 28px;
  font-size: 1.05rem;
  position: relative;
  z-index: 2;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn-primary {
  background: var(--yellow);
  color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  border: 2px solid var(--ink);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  background: #fff;
  box-shadow: 7px 7px 0 var(--ink);
}

.cta-banner .btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

/* ---------- 页脚 ---------- */

.site-footer {
  padding: 70px 0 30px;
  background: #fff;
  border-top: 4px solid var(--ink);
  position: relative;
  margin-top: 40px;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 200px;
  height: 24px;
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  z-index: 2;
}

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

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

.footer-brand .logo {
  color: var(--ink);
  margin-bottom: 18px;
}

.footer-brand .logo-icon {
  background: var(--teal);
  color: #fff;
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  animation: none;
}

.footer-brand p {
  opacity: 0.6;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-brand .social-links {
  display: flex;
  gap: 10px;
}

.footer-brand .social-links a {
  width: 36px;
  height: 36px;
  border: 2px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  transition: all 0.2s;
  font-weight: 700;
}

.footer-brand .social-links a:hover {
  background: var(--coral);
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 var(--ink);
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--teal);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--coral);
}

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

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

.footer-col a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  opacity: 0.7;
  transition: all 0.2s;
  display: inline-block;
  font-weight: 500;
}

.footer-col a:hover {
  opacity: 1;
  color: var(--coral);
  transform: translateX(5px);
}

.footer-bottom {
  border-top: 2px dashed rgba(27, 31, 35, 0.15);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.55;
  font-weight: 500;
}

/* ---------- 工具类 ---------- */

.text-accent {
  color: var(--coral);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.72;
  font-size: 1.02rem;
  line-height: 1.7;
}

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

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

/* ---------- 响应式 ---------- */

@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero {
    padding-top: calc(var(--header-h) + 30px);
    padding-bottom: 30px;
  }

  .hero-image {
    transform: rotate(1deg);
    max-width: 100%;
  }

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

  .feature-block {
    gap: 40px;
  }

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

  .footer-brand {
    grid-column: span 3;
    padding-right: 0;
  }
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .feature-image {
    transform: none;
  }

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

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

  .footer-brand {
    grid-column: span 2;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--paper);
    padding: 24px;
    border-bottom: 2px solid var(--ink);
    box-shadow: 0 6px 0 rgba(27, 31, 35, 0.1);
    gap: 10px;
    z-index: 999;
  }

  .main-nav.open a:not(.nav-cta) {
    padding: 14px 16px;
    border: 2px solid var(--ink);
    background: #fff;
    font-size: 1rem;
  }

  .main-nav.open a:not(.nav-cta):hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink);
  }

  .main-nav.open .nav-cta {
    padding: 14px 16px;
    text-align: center;
  }

  .section {
    padding: 70px 0;
  }

  .hero::before {
    font-size: 5rem;
    top: auto;
    bottom: 20px;
  }

  .hero::after {
    display: none;
  }
}

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

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

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

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

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

  .hero-content h1 {
    font-size: 2.2rem;
    letter-spacing: -1.5px;
  }

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

  .cta-banner {
    padding: 48px 16px;
  }

  .stat-item {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .content-wall-body {
    padding: 16px;
  }
}