/* ============================================================
   黑料在线观看 — 视觉设计系统
   风格：#LimePress 编辑部亮色系 / 奶油纸感 + 青柠冲击
   主色：奶油 #FAF7EE ｜ 墨青 #12312E ｜ 青柠 #C7F04A ｜ 珊瑚 #FF5B32
   ============================================================ */

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

:root {
  --cream: #FAF7EE;
  --cream-deep: #F2EDDF;
  --mint: #E9F1DC;
  --paper: #FFFFFF;
  --ink: #12312E;
  --ink-soft: #46615C;
  --ink-fade: #7E948F;
  --lime: #C7F04A;
  --lime-deep: #A9D722;
  --coral: #FF5B32;
  --sky: #4FB6E8;
  --lilac: #B9A6F2;
  --line: rgba(18, 49, 46, 0.12);
  --line-strong: rgba(18, 49, 46, 0.25);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-xs: 0 2px 8px -4px rgba(18, 49, 46, 0.25);
  --shadow-md: 0 18px 40px -26px rgba(18, 49, 46, 0.55);
  --shadow-lift: 0 26px 50px -30px rgba(18, 49, 46, 0.6);
}

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--cream);
  background-image:
    radial-gradient(rgba(18, 49, 46, 0.055) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--lime); color: var(--ink); }

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

a { color: inherit; }

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

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

.section:nth-child(even) {
  background: var(--mint);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section:nth-child(even)::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(18, 49, 46, 0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

/* 导航 — 固定顶部 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 247, 238, 0.92);
  backdrop-filter: blur(10px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}

.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: 8px;
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: inherit;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px 8px 8px 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--lime);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  transform: rotate(-6deg);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s;
  box-shadow: 2px 2px 0 var(--ink);
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: 0.2s;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.02em;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: var(--lime);
  border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.65, 0, 0.35, 1);
}

.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { width: 100%; }

.nav-cta {
  padding: 9px 20px;
  border-radius: 999px;
  color: var(--lime) !important;
  font-weight: 600;
  background: var(--ink);
  border: 1.5px solid var(--ink);
  box-shadow: 3px 3px 0 var(--lime-deep);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

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

.nav-cta:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--lime-deep);
  background: #1A423E;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1.5px solid var(--ink);
  background: var(--lime);
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
}

/* 首页 Hero */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 132px 0 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -180px;
  right: -160px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(199, 240, 74, 0.75), rgba(199, 240, 74, 0) 68%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -220px;
  left: -180px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle at 60% 40%, rgba(79, 182, 232, 0.35), rgba(79, 182, 232, 0) 70%);
  pointer-events: none;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
  background: var(--lime);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  letter-spacing: 0.14em;
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-1.2deg);
}

.hero h1 {
  font-size: clamp(2.2rem, 5.6vw, 3.6rem);
  line-height: 1.12;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -0.035em;
  word-break: break-word;
}

.hero h1 em,
.hero h1 strong {
  font-style: normal;
  font-weight: 900;
  background: linear-gradient(transparent 58%, var(--lime) 58%, var(--lime) 92%, transparent 92%);
  padding: 0 0.12em;
  color: var(--ink);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 32px;
  color: var(--ink-soft);
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1.5px solid var(--ink);
  box-shadow: 10px 10px 0 var(--lime), var(--shadow-md);
  margin-top: 48px;
  background: var(--paper);
}

.hero-image img {
  width: 100%;
  height: auto;
  transition: transform 0.7s 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: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: 0.2s;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  position: relative;
}

.btn-primary {
  color: var(--lime);
  background: var(--ink);
  border: 1.5px solid var(--ink);
  box-shadow: 4px 4px 0 var(--lime-deep);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--lime-deep);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--lime-deep);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--coral);
  border-color: var(--ink);
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
  color: var(--coral);
  text-transform: uppercase;
  position: relative;
  padding-left: 26px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translateY(-50%) rotate(45deg);
  background: var(--lime);
  border: 1.5px solid var(--ink);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  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: 24px;
}

.category-card {
  border-radius: var(--radius);
  padding: 28px;
  border: 1.5px solid var(--line-strong);
  transition: 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--paper);
  position: relative;
  overflow: hidden;
}

.category-card::after {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(199, 240, 74, 0.35);
  transition: transform 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px) rotate(-0.6deg);
  box-shadow: 8px 8px 0 var(--ink), var(--shadow-md);
  border-color: var(--ink);
}

.category-card:hover::after { transform: scale(1.5); }

.category-card h3 {
  font-size: 1.12rem;
  margin-bottom: 8px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.category-card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.3rem;
  background: var(--lime);
  border: 1.5px solid var(--ink);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  position: relative;
  z-index: 2;
}

.cards-grid .category-card:nth-child(4n+2) .card-icon { background: var(--coral); color: #fff; }
.cards-grid .category-card:nth-child(4n+3) .card-icon { background: var(--sky); color: #fff; }
.cards-grid .category-card:nth-child(4n+4) .card-icon { background: var(--lilac); color: var(--ink); }

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 2px solid var(--coral);
  padding-bottom: 2px;
  transition: 0.2s;
}

.card-link:hover {
  color: var(--coral);
  border-bottom-color: var(--ink);
}

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1.5px solid var(--ink);
  box-shadow: -10px 10px 0 var(--coral);
  background: var(--paper);
}

.feature-image img {
  width: 100%;
  height: auto;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.feature-text { }

.feature-text h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.feature-text p {
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.feature-list { list-style: none; }

.feature-list li {
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  font-size: 0.72rem;
}

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

.stat-item {
  padding: 24px;
  border-radius: var(--radius);
  border: 1.5px solid var(--line-strong);
  background: var(--paper);
  transition: 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--lime);
}

.stats-bar .stat-item:nth-child(2)::before { background: var(--coral); }
.stats-bar .stat-item:nth-child(3)::before { background: var(--sky); }
.stats-bar .stat-item:nth-child(4)::before { background: var(--lilac); }

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 6px 6px 0 var(--ink);
  border-color: var(--ink);
}

.stat-number {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.1;
  font-feature-settings: 'tnum';
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 6px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1.5px solid var(--line-strong);
  transition: 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--paper);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 8px 8px 0 var(--ink), var(--shadow-md);
  border-color: var(--ink);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  filter: saturate(1.06);
}

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

.content-wall-body {
  padding: 20px;
  border-top: 1.5px solid var(--line);
}

.content-wall-body h3 {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.content-wall-body p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  opacity: 0.85;
}

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

.faq-item {
  border: 1.5px solid var(--line-strong);
  border-radius: 10px;
  margin-bottom: 8px;
  overflow: hidden;
  cursor: pointer;
  background: var(--paper);
  transition: 0.22s ease;
}

.faq-item:hover {
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--lime);
}

.faq-item .faq-question {
  padding: 16px 20px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  letter-spacing: 0.01em;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 20px 16px;
  display: none;
  opacity: 0.7;
  color: var(--ink-soft);
  font-size: 0.95rem;
  border-top: 1px dashed var(--line-strong);
  margin-top: 0;
  padding-top: 14px;
}

.faq-item.open {
  background: var(--cream);
  border-color: var(--ink);
  box-shadow: 5px 5px 0 var(--lime);
}

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

/* CTA横幅 */
.cta-banner {
  padding: 56px 24px;
  text-align: center;
  border-radius: var(--radius);
  color: var(--ink);
  background: linear-gradient(120deg, #C7F04A 0%, #E4F7A6 42%, #9FE7C6 100%);
  border: 1.5px solid var(--ink);
  box-shadow: 10px 10px 0 var(--ink);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px dashed rgba(18, 49, 46, 0.28);
}

.cta-banner h2 {
  color: var(--ink);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: var(--ink-soft);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: var(--ink);
  color: var(--lime);
  box-shadow: 4px 4px 0 rgba(18, 49, 46, 0.35);
  position: relative;
  z-index: 1;
}

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

/* 页脚 */
.site-footer {
  padding: 56px 0 28px;
  background: var(--cream-deep);
  border-top: 1.5px solid var(--line-strong);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--lime) 0 40px,
    var(--coral) 40px 80px,
    var(--sky) 80px 120px,
    var(--lilac) 120px 160px
  );
  opacity: 0.85;
}

.site-footer .container { }

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

.footer-brand { }

.footer-brand .logo { margin-bottom: 12px; }

.footer-brand p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  max-width: 300px;
  opacity: 0.85;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
  color: var(--ink);
}

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

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

.footer-col a {
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--ink-soft);
  transition: 0.2s;
  border-bottom: 1px solid transparent;
}

.footer-col a:hover {
  color: var(--ink);
  border-bottom-color: var(--coral);
}

.footer-bottom {
  border-top: 1px solid var(--line-strong);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-soft);
  opacity: 0.8;
}

/* 工具类 */
.text-accent {
  color: var(--coral);
  font-weight: 700;
}

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

.text-center .section-label { padding-left: 26px; }

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: var(--ink-soft);
}

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

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .feature-block { grid-template-columns: 1fr; gap: 36px; }
  .feature-image { box-shadow: -6px 6px 0 var(--coral); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--cream);
    padding: 20px 24px 28px;
    border-bottom: 1.5px solid var(--ink);
    box-shadow: 0 20px 40px -24px rgba(18, 49, 46, 0.5);
    gap: 18px;
  }
  .hero { padding: 108px 0 56px; }
  .hero-image { box-shadow: 6px 6px 0 var(--lime); }
  .cta-banner { box-shadow: 6px 6px 0 var(--ink); padding: 44px 20px; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .hero-buttons .btn { justify-content: center; }
  .hero-eyebrow { font-size: 0.78rem; }
}

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