```css
/* ==========================================================================
   黑料官网 · 新大鱼 — style.css
   风格：深色霓虹渐变 + 毛玻璃卡片 + 柔和圆角
   适配：PC / 平板 / 手机 全响应式
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --brand: #e94560;
  --brand-light: #ff6b81;
  --brand-dark: #c9304a;
  --brand-2: #0f3460;
  --accent: #00d9ff;
  --accent-2: #7b5cff;
  --dark: #1a1a2e;
  --dark-2: #16213e;
  --light: #f5f6fa;
  --text: #2c2c34;
  --muted: #6b6b76;
  --card: #ffffff;
  --card-glass: rgba(255, 255, 255, 0.72);
  --border: #e6e7ee;
  --border-glass: rgba(255, 255, 255, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 10px 30px rgba(26, 26, 46, 0.1);
  --shadow-lg: 0 20px 50px rgba(26, 26, 46, 0.16);
  --shadow-brand: 0 8px 24px rgba(233, 69, 96, 0.35);
  --gradient-brand: linear-gradient(135deg, #e94560 0%, #7b5cff 55%, #00d9ff 100%);
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #0f3460 45%, #3a1c4a 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.55));
  --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ---------- 暗色模式 ---------- */
body.dark {
  --light: #0d0d16;
  --text: #e8e8f0;
  --muted: #9a9aae;
  --card: #1a1a2c;
  --card-glass: rgba(26, 26, 44, 0.6);
  --border: #2a2a40;
  --border-glass: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
  --gradient-card: linear-gradient(145deg, rgba(30,30,50,0.85), rgba(20,20,36,0.6));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--light);
  background-image: radial-gradient(
      circle at 15% 0%,
      rgba(233, 69, 96, 0.06),
      transparent 45%
    ),
    radial-gradient(circle at 90% 30%, rgba(0, 217, 255, 0.05), transparent 40%);
  background-attachment: fixed;
  line-height: 1.8;
  font-size: 16px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

body.dark {
  background-image: radial-gradient(
      circle at 15% 0%,
      rgba(233, 69, 96, 0.12),
      transparent 45%
    ),
    radial-gradient(circle at 90% 30%, rgba(0, 217, 255, 0.08), transparent 40%);
}

/* ---------- 链接 ---------- */
a {
  color: var(--brand);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  color: var(--brand-light);
  text-decoration: none;
}

/* ---------- 图片 ---------- */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 选中文本 ---------- */
::selection {
  background: var(--brand);
  color: #fff;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--brand), var(--accent-2));
  border-radius: 10px;
  border: 2px solid var(--light);
}

body.dark ::-webkit-scrollbar-thumb {
  border-color: #0d0d16;
}

/* ==========================================================================
   顶部导航
   ========================================================================== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.82);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  transition: background var(--transition), box-shadow var(--transition);
}

.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.logo:hover {
  color: #fff;
}

.logo svg {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  transition: transform var(--transition), box-shadow var(--transition);
  filter: drop-shadow(0 4px 10px rgba(233, 69, 96, 0.5));
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.08);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.25);
}

.logo span {
  background: linear-gradient(90deg, #fff 0%, #ffd6de 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 主导航 */
nav.main-nav ul {
  display: flex;
  gap: 4px;
  list-style: none;
  flex-wrap: wrap;
}

nav.main-nav a {
  color: rgba(232, 232, 240, 0.85);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 20px;
  position: relative;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

nav.main-nav a:hover {
  color: #fff;
  background: rgba(233, 69, 96, 0.18);
}

nav.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--transition);
}

nav.main-nav a:hover::after {
  width: 60%;
}

/* 顶部工具区 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 22px;
  padding: 4px 6px 4px 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color var(--transition), background var(--transition),
    box-shadow var(--transition);
}

.search-box:focus-within {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.2);
}

body.dark .search-box {
  background: rgba(255, 255, 255, 0.06);
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  color: #fff;
  width: 120px;
  font-size: 14px;
  font-family: var(--font);
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.search-box button {
  background: var(--gradient-brand);
  border: none;
  cursor: pointer;
  color: #fff;
  font-size: 13px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.search-box button:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-brand);
}

/* 图标按钮 */
.icon-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  transition: background var(--transition), border-color var(--transition),
    transform var(--transition);
  white-space: nowrap;
}

.icon-btn:hover {
  background: rgba(233, 69, 96, 0.25);
  border-color: var(--brand);
  transform: translateY(-1px);
}

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 20px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: rgba(233, 69, 96, 0.25);
}

/* ==========================================================================
   Hero 区域 — 渐变 Banner
   ========================================================================== */
.hero {
  position: relative;
  background: var(--gradient-hero);
  color: #fff;
  padding: 72px 20px 80px;
  overflow: hidden;
  isolation: isolate;
}

/* 装饰光斑 */
.hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.45), transparent 65%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: -1;
  animation: floatGlow 12s ease-in-out infinite alternate;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -200px;
  left: -140px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.32), transparent 65%);
  border-radius: 50%;
  filter: blur(50px);
  z-index: -1;
  animation: floatGlow 15s ease-in-out infinite alternate-reverse;
}

@keyframes floatGlow {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(40px, 30px) scale(1.15);
  }
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.35;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero h1 .kw {
  background: linear-gradient(90deg, #ff6b81 0%, #ffd6de 50%, #00d9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  display: inline-block;
}

.hero p {
  font-size: 16px;
  color: rgba(214, 214, 224, 0.92);
  margin-bottom: 28px;
  max-width: 560px;
  line-height: 1.9;
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 28px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  font-family: var(--font);
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition), color var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.35) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.btn:hover::before {
  transform: translateX(120%);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-brand);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(233, 69, 96, 0.5);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.25);
}

/* 轮播 */
.slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(11, 11, 20, 0.55);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  min-height: 268px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.slider::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(233, 69, 96, 0.12),
    transparent 55%,
    rgba(0, 217, 255, 0.1)
  );
  pointer-events: none;
}

.slide {
  display: none;
  padding: 32px 30px 44px;
  color: #fff;
  animation: slideFade 0.55s ease;
  position: relative;
  z-index: 1;
}

.slide.active {
  display: block;
}

@keyframes slideFade {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide h3 {
  font-size: 21px;
  margin-bottom: 12px;
  color: #fff;
  font-weight: 700;
  line-height: 1.5;
}

.slide p {
  color: rgba(207, 207, 224, 0.9);
  font-size: 15px;
  line-height: 1.85;
  margin: 0;
}

.slide .tag {
  display: inline-block;
  background: rgba(233, 69, 96, 0.22);
  color: #ff8fa3;
  padding: 4px 14px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  border: 1px solid rgba(233, 69, 96, 0.35);
  letter-spacing: 0.5px;
}

.slider-dots {
  position: absolute;
  bottom: 16px;
  right: 20px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

.slider-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: all var(--transition);
}

.slider-dots span:hover {
  background: rgba(255, 255, 255, 0.6);
}

.slider-dots span.active {
  background: var(--brand);
  width: 24px;
  border-radius: 5px;
  box-shadow: 0 0 12px rgba(233, 69, 96, 0.7);
}

/* ==========================================================================
   通用布局
   ========================================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 64px 0;
  position: relative;
}

section h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  margin-bottom: 10px;
  color: var(--text);
  position: relative;
  padding-left: 18px;
  font-weight: 800;
  letter-spacing: -0.3px;
  line-height: 1.4;
}

section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 6px;
  border-radius: 4px;
  background: var(--gradient-brand);
  box-shadow: 0 0 14px rgba(233, 69, 96, 0.5);
}

section .sub {
  color: var(--muted);
  margin-bottom: 32px;
  font-size: 15px;
  padding-left: 18px;
  line-height: 1.7;
}

/* 网格 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ==========================================================================
   卡片 — 毛玻璃 + 圆角
   ========================================================================== */
.card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: 3px 3px 0 0;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(233, 69, 96, 0.35);
}

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

.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 700;
  line-height: 1.5;
}

.card h4 {
  font-size: 15px;
  margin: 16px 0 6px;
  color: var(--brand-2);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card h4::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}

body.dark .card h4 {
  color: var(--brand-light);
}

.card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.card ul {
  list-style: none;
}

/* ==========================================================================
   统计数据
   ========================================================================== */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.stat {
  text-align: center;
  background: var(--gradient-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 28px 16px;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.stat::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 120%,
    rgba(233, 69, 96, 0.15),
    transparent 70%
  );
  pointer-events: none;
}

.stat:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.4);
}

.stat .num {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat .lbl {
  color: var(--muted);
  font-size: 14px;
  margin-top: 6px;
}

/* ==========================================================================
   时间线
   ========================================================================== */
.timeline {
  position: relative;
  padding-left: 32px;
  border-left: 2px solid var(--border);
}

.timeline::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--brand) 0%,
    var(--accent-2) 50%,
    var(--accent) 100%
  );
  border-radius: 2px;
  opacity: 0.6;
}

.timeline-item {
  margin-bottom: 28px;
  position: relative;
  padding: 4px 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -40px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--brand);
  border: 3px solid var(--light);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.25);
  transition: transform var(--transition), box-shadow var(--transition);
  z-index: 1;
}

body.dark .timeline-item::before {
  border-color: #0d0d16;
}

.timeline-item:hover::before {
  transform: scale(1.3);
  box-shadow: 0 0 0 6px rgba(233, 69, 96, 0.3);
}

.timeline-item h4 {
  font-size: 16px;
  margin-bottom: 4px;
  color: var(--text);
  font-weight: 700;
}

.timeline-item span {
  display: inline-block;
  font-size: 13px;
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.timeline-item p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ==========================================================================
   FAQ 手风琴
   ========================================================================== */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  background: var(--card);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition),
    transform var(--transition);
}

.faq-item:hover {
  border-color: rgba(233, 69, 96, 0.4);
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  border-color: var(--brand);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.1);
}

.faq-q {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  color: var(--text);
  transition: color var(--transition), background var(--transition);
  user-select: none;
}

.faq-q:hover {
  color: var(--brand);
  background: rgba(233, 69, 96, 0.04);
}

.faq-q .arrow {
  transition: transform var(--transition), color var(--transition);
  color: var(--brand);
  font-size: 14px;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(233, 69, 96, 0.1);
}

.faq-item.open .arrow {
  transform: rotate(180deg);
  background: var(--brand);
  color: #fff;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
    padding 0.4s ease;
  padding: 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.faq-item.open .faq-a {
  max-height: 800px;
  padding-bottom: 20px;
}

/* ==========================================================================
   文章列表
   ========================================================================== */
.article-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.article-card {
  background: var(--gradient-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.35);
}

.article-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 700;
  line-height: 1.55;
  transition: color var(--transition);
}

.article-card:hover h3 {
  color: var(--brand);
}

.article-card .meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.article-card .meta::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}

.article-card p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.85;
  flex-grow: 1;
}

.article-card a {
  font-size: 14px;
  font-weight: 600;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 0;
  position: relative;
}

.article-card a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transition: width var(--transition);
}

.article-card a:hover::after {
  width: 100%;
}

/* ==========================================================================
   步骤流程
   ========================================================================== */
.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding: 22px 24px 22px 76px;
  background: var(--gradient-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  margin-bottom: 16px;
  counter-increment: step;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.step:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.35);
}

.step::before {
  content: counter(step);
  position: absolute;
  left: 22px;
  top: 22px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: var(--shadow-brand);
  transition: transform var(--transition);
}

.step:hover::before {
  transform: scale(1.1) rotate(-8deg);
}

.step h4 {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--text);
  font-weight: 700;
}

.step p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

/* ==========================================================================
   联系区域
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.contact-info p {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.contact-info strong {
  color: var(--text);
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   面包屑 / 锚点导航
   ========================================================================== */
.breadcrumb {
  font-size: 14px;
  color: var(--muted);
  padding: 20px 0 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}

.breadcrumb a {
  color: var(--muted);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--brand);
}

.breadcrumb span {
  margin: 0 8px;
  opacity: 0.6;
}

.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
  padding-bottom: 8px;
}

.anchor-nav a {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 14px;
  color: var(--muted);
  transition: all var(--transition);
  white-space: nowrap;
}

.anchor-nav a:hover {
  color: #fff;
  background: var(--gradient-brand);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-brand);
}

/* ==========================================================================
   页脚
   ========================================================================== */
footer.site-footer {
  background: linear-gradient(180deg, var(--dark) 0%, #0f0f1a 100%);
  color: #c8c8d4;
  padding: 60px 0 28px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

footer.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
}

footer.site-footer::after {
  content: "";
  position: absolute;
  bottom: -200px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.14), transparent 65%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}

footer h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

footer ul {
  list-style: none;
}

footer li {
  margin-bottom: 10px;
  font-size: 14px;
}

footer a {
  color: #c8c8d4;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-block;
}

footer a:hover {
  color: var(--brand-light);
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 24px 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: #8a8a9a;
  text-align: center;
  position: relative;
  z-index: 1;
  line-height: 1.9;
}

.footer-bottom a {
  color: #8a8a9a;
}

.footer-bottom a:hover {
  color: var(--brand-light);
}

/* ==========================================================================
   返回顶部
   ========================================================================== */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: none;
  z-index: 900;
  box-shadow: var(--shadow-brand);
  transition: transform var(--transition), box-shadow var(--transition);
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.back-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 14px 32px rgba(233, 69, 96, 0.55);
}

.back-top:active {
  transform: translateY(-2px) scale(1.02);
}

/* ==========================================================================
   滚动动画
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.7s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* 卡片交错动画 */
.reveal .card,
.reveal .article-card,
.reveal .step,
.reveal .stat,
.reveal .timeline-item,
.reveal .faq-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease,
    box-shadow var(--transition), border-color var(--transition);
}

.reveal.visible .card,
.reveal.visible .article-card,
.reveal.visible .step,
.reveal.visible .stat,
.reveal.visible .timeline-item,
.reveal.visible .faq-item {
  opacity: 1;
  transform: translateY(0);
}

.reveal.visible .card:nth-child(1),
.reveal.visible .article-card:nth-child(1),
.reveal.visible .step:nth-child(1),
.reveal.visible .stat:nth-child(1),
.reveal.visible .timeline-item:nth-child(1) {
  transition-delay: 0.05s;
}
.reveal.visible .card:nth-child(2),
.reveal.visible .article-card:nth-child(2),
.reveal.visible .step:nth-child(2),
.reveal.visible .stat:nth-child(2),
.reveal.visible .timeline-item:nth-child(2) {
  transition-delay: 0.12s;
}
.reveal.visible .card:nth-child(3),
.reveal.visible .article-card:nth-child(3),
.reveal.visible .step:nth-child(3),
.reveal.visible .stat:nth-child(3),
.reveal.visible .timeline-item:nth-child(3) {
  transition-delay: 0.19s;
}
.reveal.visible .card:nth-child(4),
.reveal.visible .article-card:nth-child(4),
.reveal.visible .step:nth-child(4),
.reveal.visible .stat:nth-child(4),
.reveal.visible .timeline-item:nth-child(4) {
  transition-delay: 0.26s;
}
.reveal.visible .card:nth-child(5),
.reveal.visible .article-card:nth-child(5),
.reveal.visible .step:nth-child(5),
.reveal.visible .timeline-item:nth-child(5) {
  transition-delay: 0.33s;
}
.reveal.visible .card:nth-child(6),
.reveal.visible .article-card:nth-child(6),
.reveal.visible .step:nth-child(6),
.reveal.visible .timeline-item:nth-child(6) {
  transition-delay: 0.4s;
}
.reveal.visible .article-card:nth-child(7),
.reveal.visible .step:nth-child(7),
.reveal.visible .timeline-item:nth-child(7) {
  transition-delay: 0.47s;
}
.reveal.visible .article-card:nth-child(8),
.reveal.visible .timeline-item:nth-child(8) {
  transition-delay: 0.54s;
}
.reveal.visible .article-card:nth-child(9) {
  transition-delay: 0.61s;
}
.reveal.visible .article-card:nth-child(10) {
  transition-delay: 0.68s;
}

/* ==========================================================================
   响应式 — 平板
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-wrap {
    height: 60px;
  }

  nav.main-nav ul {
    gap: 0;
  }

  nav.main-nav a {
    padding: 7px 9px;
    font-size: 13px;
  }

  .search-box input {
    width: 90px;
  }

  .hero {
    padding: 56px 20px 64px;
  }

  .hero-inner {
    gap: 32px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 28px;
  }

  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }

  .footer-grid > div:last-child ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
  }
}

/* ==========================================================================
   响应式 — 手机横屏 / 小平板
   ========================================================================== */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .grid-3,
  .grid-2,
  .article-list,
  .contact-grid,
  .stat-row {
    grid-template-columns: 1fr;
  }

  nav.main-nav {
    display: none;
  }

  nav.main-nav.open {
    display: block;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
    animation: menuSlide 0.3s ease;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

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

  nav.main-nav.open ul {
    flex-direction: column;
    gap: 4px;
  }

  nav.main-nav.open a {
    display: block;
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 10px;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .search-box {
    display: none;
  }

  .hero h1 {
    font-size: 26px;
  }

  .hero p {
    font-size: 15px;
  }

  section {
    padding: 48px 0;
  }

  .stat-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

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

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }

  .footer-grid > div:last-child ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
  }

  .step {
    padding: 20px 18px 20px 68px;
  }

  .step::before {
    left: 18px;
    top: 20px;
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

/* ==========================================================================
   响应式 — 手机竖屏
   ========================================================================== */
@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .nav-wrap {
    height: 56px;
    padding: 0 14px;
    gap: 8px;
  }

  .logo {
    font-size: 17px;
    gap: 8px;
  }

  .logo svg {
    width: 30px;
    height: 30px;
    border-radius: 8px;
  }

  .icon-btn {
    padding: 5px 10px;
    font-size: 12px;
  }

  .menu-toggle {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  nav.main-nav.open {
    top: 56px;
    max-height: calc(100vh - 56px);
  }

  .hero {
    padding: 44px 16px 52px;
  }

  .hero h1 {
    font-size: 23px;
    margin-bottom: 14px;
  }

  .hero p {
    font-size: 14px;
    margin-bottom: 22px;
  }

  .hero-cta {
    gap: 10px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 14px;
    flex: 1;
    min-width: 140px;
  }

  .slider {
    min-height: 240px;
    border-radius: var(--radius);
  }

  .slide {
    padding: 26px 22px 40px;
  }

  .slide h3 {
    font-size: 18px;
  }

  .slide p {
    font-size: 14px;
  }

  .container {
    padding: 0 16px;
  }

  section {
    padding: 40px 0;
  }

  section h2 {
    font-size: 21px;
    padding-left: 14px;
  }

  section h2::before {
    width: 5px;
    top: 6px;
    bottom: 6px;
  }

  section .sub {
    font-size: 14px;
    padding-left: 14px;
    margin-bottom: 24px;
  }

  .card {
    padding: 20px;
    border-radius: var(--radius-sm);
  }

  .card h3 {
    font-size: 16px;
  }

  .card p {
    font-size: 14px;
  }

  .stat {
    padding: 20px 12px;
  }

  .stat .num {
    font-size: 26px;
  }

  .stat .lbl {
    font-size: 13px;
  }

  .timeline {
    padding-left: 24px;
  }

  .timeline-item::before {
    left: -32px;
    width: 12px;
    height: 12px;
  }

  .timeline-item h4 {
    font-size: 15px;
  }

  .timeline-item p {
    font-size: 14px;
  }

  .faq-q {
    padding: 15px 16px;
    font-size: 15px;
  }

  .faq-a {
    padding: 0 16px;
    font-size: 14px;
  }

  .faq-item.open .faq-a {
    padding-bottom: 16px;
  }

  .article-card {
    padding: 18px;
  }

  .article-card h3 {
    font-size: 16px;
  }

  .article-card p {
    font-size: 13px;
  }

  .step {
    padding: 18px 16px 18px 62px;
    margin-bottom: 12px;
  }

  .step::before {
    left: 16px;
    top: 18px;
    width: 30px;
    height: 30px;
    font-size: 14px;
  }

  .step h4 {
    font-size: 15px;
  }

  .step p {
    font-size: 14px;
  }

  .contact-info p {
    font-size: 14px;
    margin-bottom: 10px;
  }

  .anchor-nav {
    gap: 8px;
  }

  .anchor-nav a {
    padding: 6px 12px;
    font-size: 13px;
  }

  .breadcrumb {
    font-size: 13px;
    padding: 14px 0 10px;
  }

  footer.site-footer {
    padding: 44px 0 20px;
    margin-top: 28px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .footer-grid > div:first-child,
  .footer-grid > div:last-child {
    grid-column: auto;
  }

  .footer-grid > div:last-child ul {
    display: block;
  }

  footer h4 {
    font-size: 15px;
    margin-bottom: 14px;
  }

  footer li {
    font-size: 13px;
    margin-bottom: 8px;
  }

  .footer-bottom {
    margin-top: 28px;
    padding: 20px 16px 0;
    font-size: 12px;
  }

  .back-top {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
    font-size: 18px;
  }
}

/* ==========================================================================
   超小屏
   ========================================================================== */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 20px;
  }

  .btn {
    min-width: 100%;
  }

  .stat-row {
    grid-template-columns: 1fr;
  }

  .logo span {
    font-size: 15px;
  }
}

/* ==========================================================================
   无障碍 & 减弱动效
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .reveal .card,
  .reveal .article-card,
  .reveal .step,
  .reveal .stat,
  .reveal .timeline-item,
  .reveal .faq-item {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* 键盘焦点可见 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
.faq-q:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 打印优化 */
@media print {
  header.site-header,
  .back-top,
  .slider-dots,
  .hero-cta,
  .anchor-nav {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .card,
  .article-card,
  .stat,
  .step {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }

  .reveal,
  .reveal .card,
  .reveal .article-card,
  .reveal .step,
  .reveal .stat,
  .reveal .timeline-item,
  .reveal .faq-item {
    opacity: 1 !important;
    transform: none !important;
  }

  .faq-a {
    max-height: none !important;
    padding-bottom: 16px !important;
  }
}
```