/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #e63946;
  --primary-dark: #b71c2c;
  --primary-light: #ff5c66;
  --accent: #f4a261;
  --accent-2: #ffd166;
  --bg-dark: #0f0a0c;
  --bg-dark-2: #1a1114;
  --bg-card: #22181b;
  --bg-card-hover: #2d2023;
  --text-light: #ffffff;
  --text-muted: #c4b1b6;
  --text-dim: #8f7a80;
  --border-light: rgba(255,255,255,0.08);
  --border-dark: rgba(255,255,255,0.05);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-lg: 0 18px 50px rgba(0,0,0,0.45);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-hover: 0 14px 42px rgba(230,57,70,0.22);
  --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
  --container-max: 1240px;
  --header-height: 74px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 10, 12, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-light);
  height: var(--header-height);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(15, 10, 12, 0.96);
  box-shadow: 0 6px 30px rgba(0,0,0,0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 4px 16px rgba(230,57,70,0.4);
  letter-spacing: 0;
}

.brand-name {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-light);
  white-space: nowrap;
}

.brand-name em {
  font-style: normal;
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  position: relative;
}

.main-nav a:hover {
  color: var(--text-light);
  background: rgba(255,255,255,0.06);
}

.main-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  box-shadow: 0 4px 16px rgba(230,57,70,0.35);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border-light);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat fixed;
  padding: 120px 20px 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,10,12,0.8) 0%, rgba(15,10,12,0.5) 45%, rgba(15,10,12,0.92) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  border-radius: 40px;
  background: rgba(230,57,70,0.18);
  border: 1px solid rgba(230,57,70,0.35);
  color: #ffb3b8;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: 2px;
  text-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 46px;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  box-shadow: 0 6px 24px rgba(230,57,70,0.38);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 34px rgba(230,57,70,0.5);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(230,57,70,0.3);
}

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: var(--text-light);
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.3);
  transform: translateY(-3px);
}

.btn-ghost:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 70px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.stat-pill {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 16px 30px;
  backdrop-filter: blur(10px);
  text-align: center;
  min-width: 150px;
  transition: var(--transition);
}

.stat-pill:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 1px;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 28px;
  height: 46px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-indicator::after {
  content: '';
  width: 4px;
  height: 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.7);
  animation: scrollDot 2s ease infinite;
}

@keyframes scrollDot {
  0% { opacity: 1; transform: translateY(0); }
  60% { opacity: 0.4; transform: translateY(12px); }
  100% { opacity: 0; transform: translateY(0); }
}

/* ===== 通用 section ===== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(230,57,70,0.12);
  border: 1px solid rgba(230,57,70,0.22);
  border-radius: 30px;
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}

.section-head.left {
  text-align: left;
  margin-left: 0;
}

/* ===== 特性卡片 ===== */
.features {
  position: relative;
}

.features::after {
  content: '';
  position: absolute;
  right: -100px;
  top: 20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(230,57,70,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230,57,70,0.25);
}

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

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(230,57,70,0.18) 0%, rgba(230,57,70,0.08) 100%);
  border: 1px solid rgba(230,57,70,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--primary-light);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== 分类卡片 ===== */
.cats-section {
  background: linear-gradient(180deg, var(--bg-dark-2) 0%, var(--bg-dark) 100%);
}

.cats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.cat-card {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  transition: var(--transition);
  display: block;
}

.cat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230,57,70,0.3);
}

.cat-card-img {
  height: 190px;
  position: relative;
  overflow: hidden;
}

.cat-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.cat-card:hover .cat-card-img img {
  transform: scale(1.08);
}

.cat-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(15,10,12,0.85) 100%);
}

.cat-card-body {
  padding: 20px 22px 24px;
}

.cat-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.cat-card-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

.cat-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  transition: all 0.25s ease;
}

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

/* ===== 最新内容列表 ===== */
.post-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.post-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230,57,70,0.2);
}

.post-media {
  display: block;
  height: 170px;
  position: relative;
  overflow: hidden;
}

.post-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .post-media img {
  transform: scale(1.05);
}

.post-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15,10,12,0.6) 100%);
}

.post-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  background: rgba(230,57,70,0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  backdrop-filter: blur(4px);
}

.post-info {
  padding: 18px 20px 20px;
}

.post-info h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 44px;
}

.post-info h3 a:hover {
  color: var(--primary-light);
}

.post-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 12px;
}

.post-meta i {
  font-style: normal;
  font-size: 13px;
  color: var(--accent);
}

.empty-tip {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(255,255,255,0.12);
  color: var(--text-muted);
  font-size: 16px;
  letter-spacing: 1px;
}

/* ===== 统计数字 ===== */
.stats-section {
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat fixed;
  position: relative;
  padding: 90px 0;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 10, 12, 0.88);
}

.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-6px);
}

.stat-num {
  font-size: 42px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  font-size: 15px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ===== 精选内容 ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.featured-card {
  border-radius: 22px;
  overflow: hidden;
  position: relative;
  height: 340px;
  cursor: pointer;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.featured-card:first-child {
  grid-column: span 1;
}

.featured-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(15,10,12,0.9) 100%);
  transition: var(--transition);
}

.featured-card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.featured-card:hover::after {
  background: linear-gradient(180deg, transparent 10%, rgba(15,10,12,0.95) 100%);
}

.featured-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 26px;
  z-index: 2;
}

.featured-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.featured-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}

.featured-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 用户评价 ===== */
.testimonials {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
}

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

.testi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  position: relative;
  transition: var(--transition);
}

.testi-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(230,57,70,0.2);
}

.testi-quote {
  font-size: 46px;
  line-height: 1;
  color: var(--primary);
  opacity: 0.4;
  font-family: Georgia, serif;
  position: absolute;
  top: 20px;
  right: 24px;
}

.testi-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
  margin-bottom: 22px;
  padding-top: 10px;
}

.testi-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 16px;
}

.testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testi-user span {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

.testi-stars {
  color: var(--accent-2);
  font-size: 14px;
  letter-spacing: 2px;
  margin-left: auto;
}

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

.faq-item {
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: rgba(255,255,255,0.02);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(230,57,70,0.2);
}

.faq-item summary {
  padding: 22px 28px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 26px;
  color: var(--primary);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq-answer {
  padding: 0 28px 22px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}

.faq-item[open] {
  background: var(--bg-card);
  box-shadow: var(--shadow-md);
}

/* ===== CTA ===== */
.cta-section {
  background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat fixed;
  padding: 110px 0;
  text-align: center;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 10, 12, 0.82);
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}

.cta-content .btn {
  font-size: 18px;
  padding: 16px 46px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0a0607;
  padding: 64px 0 0;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  max-width: 320px;
  margin-top: 16px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.5;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-light);
  transform: translateX(3px);
}

.footer-links a:hover::before {
  opacity: 1;
  background: var(--accent);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-dim);
  font-size: 13px;
}

.footer-bottom .copyright a {
  color: var(--text-muted);
}

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

.footer-tip {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

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

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(15,10,12,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 8px;
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    backdrop-filter: blur(20px);
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .main-nav a {
    width: 100%;
    padding: 14px 18px;
    font-size: 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 16px 60px;
    background-attachment: scroll;
  }

  .hero-stats {
    gap: 12px;
    margin-top: 50px;
  }

  .stat-pill {
    min-width: 130px;
    padding: 14px 20px;
  }

  .section {
    padding: 70px 0;
  }

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

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

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

  .featured-card {
    height: 300px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 34px;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-num {
    font-size: 30px;
  }

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

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

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

/* roulang page: article */
:root {
  --bg: #0a0a11;
  --bg-soft: #10101a;
  --surface: #151521;
  --surface-hover: #1d1d2c;
  --border: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.16);
  --primary: #ff3d5a;
  --primary-hover: #ff6480;
  --primary-soft: rgba(255,61,90,.14);
  --gold: #ffc861;
  --text: #f4f4fa;
  --text-weak: #a6a6ba;
  --text-mute: #71718a;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-1: 0 6px 24px rgba(0,0,0,.45);
  --shadow-2: 0 22px 70px rgba(0,0,0,.55);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --transition: .28s cubic-bezier(.4,0,.2,1);
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input, select, textarea { font-family: inherit; }
.container {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 28px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10,10,17,.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #ff7a5c);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(255,61,90,.4);
}
.brand-name {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--text);
  white-space: nowrap;
}
.brand-name em {
  font-style: normal;
  color: var(--primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  padding: 9px 17px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-weak);
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}
.main-nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,.06);
}
.main-nav a.active {
  color: #fff;
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 1px rgba(255,61,90,.35);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color var(--transition);
}
.nav-toggle:hover { border-color: var(--border-strong); }
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.article-hero {
  position: relative;
  padding: 88px 0 72px;
  background: linear-gradient(180deg, rgba(10,10,17,.55), rgba(10,10,17,.98)), url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.article-hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 30px;
}
.breadcrumb a {
  color: var(--text-weak);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--text-mute); }
.breadcrumb-current { color: var(--text); }
.article-headline {
  max-width: 900px;
}
.article-eyebrow {
  display: inline-block;
  padding: 7px 20px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid rgba(255,61,90,.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.article-title {
  font-size: clamp(28px, 4.6vw, 46px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.5px;
  color: #fff;
  margin-bottom: 18px;
  text-shadow: 0 4px 35px rgba(0,0,0,.4);
}
.article-desc {
  font-size: 16.5px;
  color: var(--text-weak);
  max-width: 720px;
  margin-bottom: 26px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 24px;
}
.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
}
.article-meta-item svg {
  width: 15px;
  height: 15px;
  opacity: .85;
}
.article-main {
  padding: 70px 0 36px;
  position: relative;
}
.article-container {
  max-width: 920px;
}
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 60px;
  box-shadow: var(--shadow-1);
  margin-bottom: 20px;
}
.article-body {
  font-size: 17px;
  line-height: 1.95;
  color: rgba(244,244,250,.92);
}
.article-body p {
  margin-bottom: 1.55em;
}
.article-body p:last-child { margin-bottom: 0; }
.article-body h2,
.article-body h3,
.article-body h4 {
  color: #fff;
  font-weight: 750;
  line-height: 1.4;
  margin: 1.7em 0 .7em;
}
.article-body h2 { font-size: 28px; }
.article-body h3 { font-size: 22px; }
.article-body h4 { font-size: 18px; }
.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(255,61,90,.35);
  transition: border-color var(--transition), color var(--transition);
}
.article-body a:hover {
  color: var(--primary-hover);
  border-color: var(--primary);
}
.article-body img,
.article-body video,
.article-body iframe {
  width: 100%;
  border-radius: var(--radius-md);
  margin: 30px 0;
  box-shadow: var(--shadow-1);
}
.article-body ul,
.article-body ol {
  margin: 0 0 1.6em 1.5em;
}
.article-body li {
  margin-bottom: .55em;
}
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 22px 26px;
  margin: 1.8em 0;
  font-style: italic;
  color: var(--text-weak);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 15px;
}
.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.article-body th {
  background: var(--bg-soft);
  color: #fff;
  font-weight: 600;
}
.article-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-weak);
}
.article-share a {
  color: var(--text-weak);
  font-weight: 500;
  transition: color var(--transition);
}
.article-share a:hover { color: var(--primary); }
.article-empty {
  text-align: center;
  padding: 60px 20px;
}
.article-empty p {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 34px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .3px;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #ff5c7a);
  color: #fff;
  box-shadow: 0 8px 28px rgba(255,61,90,.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #ff4d6a, #ff728c);
  box-shadow: 0 12px 36px rgba(255,61,90,.5);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 10px 24px;
  font-size: 14px;
}
.related-section {
  padding: 84px 0 70px;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid rgba(255,61,90,.28);
  color: var(--primary);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-weak);
  font-size: 16px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.related-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2);
  border-color: rgba(255,61,90,.35);
}
.related-media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.related-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
}
.related-card:hover .related-media img {
  transform: scale(1.06);
}
.related-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.35));
}
.related-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .5px;
  border: 1px solid rgba(255,255,255,.15);
}
.related-info {
  padding: 20px 22px 22px;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.4;
}
.related-info p {
  font-size: 13.5px;
  color: var(--text-weak);
  line-height: 1.6;
}
.faq-section {
  padding: 84px 0 70px;
}
.faq-container {
  max-width: 860px;
}
.faq-list {
  margin-top: 10px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2px 26px;
  margin-bottom: 14px;
  transition: border-color var(--transition), background var(--transition);
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item[open] {
  border-color: rgba(255,61,90,.35);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary::after {
  content: '+';
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 400;
  color: var(--primary);
  background: var(--primary-soft);
  transition: transform var(--transition), background var(--transition);
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-item p {
  padding: 0 0 24px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
  max-width: 96%;
}
.cta-section {
  padding: 80px 0 90px;
}
.cta-inner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255,61,90,.16), rgba(16,16,26,.7)), var(--surface);
  border: 1px solid rgba(255,61,90,.28);
  border-radius: var(--radius-lg);
  padding: 70px 50px;
  text-align: center;
  box-shadow: var(--shadow-2);
}
.cta-inner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255,61,90,.25), transparent 70%);
  pointer-events: none;
}
.cta-inner h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 16.5px;
  color: var(--text-weak);
  max-width: 560px;
  margin: 0 auto 34px;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer {
  background: #08080e;
  border-top: 1px solid var(--border);
  padding: 70px 0 34px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 46px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p {
  font-size: 14.5px;
  color: var(--text-mute);
  max-width: 380px;
  line-height: 1.8;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: .5px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-mute);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-mute);
}
.footer-tip {
  color: rgba(255,255,255,.3);
}
@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(10,10,17,.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 28px 28px;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease, visibility .3s;
    z-index: 190;
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .main-nav a {
    padding: 14px 20px;
    font-size: 16px;
    border-radius: 14px;
  }
  .nav-toggle {
    display: flex;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .header-inner { height: 66px; }
  .main-nav { top: 66px; }
  .article-hero { padding: 58px 0 52px; }
  .article-card { padding: 36px 26px; }
  .article-body { font-size: 16px; }
  .cta-inner { padding: 50px 26px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .brand-name { font-size: 18px; }
  .brand-badge { width: 36px; height: 36px; font-size: 17px; }
  .article-card { padding: 28px 20px; border-radius: var(--radius-md); }
  .article-title { font-size: 28px; }
  .article-desc { font-size: 15px; }
  .article-footer-meta { flex-direction: column; align-items: flex-start; }
  .related-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .related-info { padding: 15px 16px 17px; }
  .related-info h3 { font-size: 15px; }
  .related-info p { font-size: 12.5px; }
  .section-head { margin-bottom: 36px; }
  .cta-actions { flex-direction: column; width: 100%; }
  .btn { width: 100%; }
  .faq-item { padding: 0 18px; }
  .faq-item summary { font-size: 15px; padding: 19px 0; }
}

/* roulang page: category1 */
:root {
  --primary: #ff3e6c;
  --primary-dark: #e62e5c;
  --primary-light: #ff7a9a;
  --accent: #ffd166;
  --accent-rgb: 255, 209, 102;
  --bg: #0c0c14;
  --bg-soft: #12121e;
  --bg-card: #181828;
  --bg-elev: #20203a;
  --text: #f5eff2;
  --text-muted: #a89fae;
  --border: rgba(255,255,255,.08);
  --border-light: rgba(255,255,255,.16);
  --radius: 14px;
  --radius-lg: 22px;
  --radius-sm: 9px;
  --shadow-sm: 0 6px 24px rgba(0,0,0,.3);
  --shadow-md: 0 16px 48px rgba(0,0,0,.42);
  --shadow-lg: 0 28px 90px rgba(0,0,0,.55);
  --transition: all .35s cubic-bezier(.4,0,.2,1);
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container-w: 1200px;
  --header-h: 76px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input,select,textarea{font-family:inherit}
.container{width:100%;max-width:var(--container-w);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{max-width:680px;margin:0 auto 56px;text-align:center}
.section-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--primary-light);background:rgba(255,62,108,.12);border:1px solid rgba(255,62,108,.25);padding:6px 18px;border-radius:100px;margin-bottom:18px;text-transform:uppercase}
.section-head h2{font-size:36px;line-height:1.3;font-weight:700;margin-bottom:14px;color:#fff}
.section-head p{font-size:16px;color:var(--text-muted);line-height:1.7}
@media (max-width:768px){.section{padding:64px 0}.section-head h2{font-size:28px}.section-head{margin-bottom:40px}}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);background:rgba(12,12,20,.85);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border);transition:var(--transition)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-badge{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;color:#fff;box-shadow:0 6px 20px rgba(255,62,108,.4)}
.brand-name{font-size:20px;font-weight:700;color:#fff;letter-spacing:.5px}
.brand-name em{font-style:normal;color:var(--primary-light)}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:100px;font-size:15px;color:var(--text-muted);white-space:nowrap;transition:var(--transition)}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,rgba(255,62,108,.22),rgba(255,215,102,.14));box-shadow:inset 0 0 0 1px rgba(255,62,108,.35)}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;background:rgba(255,255,255,.06)}
.nav-toggle span{width:20px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
@media (max-width:1024px){
  .main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:rgba(12,12,20,.98);flex-direction:column;align-items:stretch;padding:20px 24px;gap:8px;border-bottom:1px solid var(--border);transform:translateY(-120%);opacity:0;pointer-events:none;transition:var(--transition)}
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav a{padding:12px 18px;border-radius:12px}
  .nav-toggle{display:flex}
}

/* Hero */
.hero{position:relative;min-height:660px;display:flex;align-items:center;overflow:hidden;padding:calc(var(--header-h) + 60px) 0 80px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,12,20,.95) 0%,rgba(12,12,20,.78) 45%,rgba(12,12,20,.55) 100%);z-index:1}
.hero-inner{position:relative;z-index:2}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,62,108,.16);border:1px solid rgba(255,62,108,.35);color:var(--primary-light);font-size:13px;font-weight:600;letter-spacing:1.5px;padding:7px 18px;border-radius:100px;margin-bottom:22px}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary-light);box-shadow:0 0 12px rgba(255,62,108,.8)}
.hero h1{font-size:52px;line-height:1.18;font-weight:800;color:#fff;letter-spacing:1px;margin-bottom:24px;max-width:720px}
.hero h1 .highlight{background:linear-gradient(120deg,var(--primary-light),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:18px;line-height:1.8;color:rgba(245,239,242,.82);max-width:600px;margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:100px;font-size:16px;font-weight:600;letter-spacing:.3px;transition:var(--transition);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 10px 30px rgba(255,62,108,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 44px rgba(255,62,108,.5)}
.btn-ghost{background:rgba(255,255,255,.07);color:#fff;border:1px solid var(--border-light);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px}
.hero-tags span{background:rgba(255,255,255,.07);border:1px solid var(--border);color:var(--text-muted);font-size:13px;padding:6px 14px;border-radius:100px}
@media (max-width:768px){
  .hero{min-height:auto;padding:120px 0 60px}
  .hero h1{font-size:34px}
  .hero-desc{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
}

/* Features */
.features-section{background:var(--bg-soft);position:relative}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media (max-width:1024px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.features-grid{grid-template-columns:1fr}}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 28px;transition:var(--transition)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:rgba(255,62,108,.25)}
.feature-icon{width:58px;height:58px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;background:linear-gradient(135deg,rgba(255,62,108,.18),rgba(255,209,102,.12));border:1px solid rgba(255,62,108,.25);color:var(--primary-light);margin-bottom:20px}
.feature-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.75}

/* Hot */
.hot-section{background:var(--bg)}
.hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media (max-width:1024px){.hot-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.hot-grid{grid-template-columns:1fr}}
.hot-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition)}
.hot-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(255,62,108,.3)}
.hot-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.hot-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.hot-card:hover .hot-thumb img{transform:scale(1.06)}
.hot-badge{position:absolute;top:12px;left:12px;background:rgba(12,12,20,.82);backdrop-filter:blur(6px);color:var(--primary-light);font-size:12px;font-weight:600;padding:5px 14px;border-radius:100px;border:1px solid rgba(255,62,108,.3)}
.hot-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(12,12,20,.35);opacity:0;transition:var(--transition)}
.hot-play span{width:56px;height:56px;border-radius:50%;background:rgba(255,62,108,.9);display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;box-shadow:0 10px 30px rgba(255,62,108,.4)}
.hot-card:hover .hot-play{opacity:1}
.hot-info{padding:22px 22px 24px}
.hot-info h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:10px;line-height:1.45}
.hot-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-muted)}
.hot-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.3)}
.hot-meta .tag{color:var(--accent);font-weight:500}

/* Scene */
.scene-section{background:var(--bg-soft);position:relative}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media (max-width:1024px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.scene-grid{grid-template-columns:1fr}}
.scene-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:320px;display:flex;align-items:flex-end}
.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.scene-card:hover img{transform:scale(1.07)}
.scene-card::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(12,12,20,.92) 0%,rgba(12,12,20,.25) 55%,rgba(12,12,20,.05) 100%)}
.scene-content{position:relative;z-index:2;padding:28px 24px}
.scene-content h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:8px}
.scene-content p{font-size:14px;color:rgba(245,239,242,.78);line-height:1.65}

/* Steps */
.steps-section{background:var(--bg)}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;position:relative}
@media (max-width:1024px){.steps-grid{grid-template-columns:1fr;gap:32px}}
.step-card{position:relative;text-align:center;padding:36px 28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:var(--transition)}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.step-num{width:48px;height:48px;margin:0 auto 20px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;color:#fff;box-shadow:0 8px 24px rgba(255,62,108,.35)}
.step-card h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.step-card p{font-size:14px;color:var(--text-muted);line-height:1.75}

/* FAQ */
.faq-section{background:var(--bg-soft)}
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item:not(.active):hover{border-color:var(--border-light)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-size:16px;font-weight:600;color:#fff;text-align:left;transition:var(--transition)}
.faq-q .faq-icon{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--primary-light);flex-shrink:0;transition:var(--transition)}
.faq-item.active .faq-icon{background:var(--primary-light);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;color:var(--text-muted);line-height:1.8;border-top:1px solid var(--border);padding-top:16px}

/* CTA */
.cta-section{padding:110px 0;position:relative;overflow:hidden}
.cta-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(12,12,20,.96) 0%,rgba(12,12,20,.82) 50%,rgba(255,62,108,.25) 100%)}
.cta-content{position:relative;z-index:2;text-align:center;max-width:680px;margin:0 auto}
.cta-content h2{font-size:38px;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.3}
.cta-content h2 .hl{color:var(--primary-light)}
.cta-content p{font-size:17px;color:rgba(245,239,242,.82);margin-bottom:36px;line-height:1.8}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
@media (max-width:640px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .cta-content h2{font-size:28px}
}

/* Footer */
.site-footer{background:#0a0a12;border-top:1px solid var(--border);padding:70px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:50px}
@media (max-width:900px){.footer-top{grid-template-columns:1fr;gap:36px}}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.8;margin-top:18px;max-width:360px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px;letter-spacing:.5px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-muted);transition:var(--transition)}
.footer-links a:hover{color:var(--primary-light);padding-left:6px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;border-top:1px solid var(--border)}
.copyright{font-size:13px;color:var(--text-muted)}
.footer-tip{font-size:13px;color:rgba(255,255,255,.4)}
@media (max-width:600px){.footer-bottom{justify-content:center;text-align:center}}

/* Focus / Misc */
:focus-visible{outline:2px solid var(--primary-light);outline-offset:3px;border-radius:6px}
::selection{background:rgba(255,62,108,.4);color:#fff}

/* roulang page: category4 */
:root {
  --bg: #0d0d10;
  --bg-soft: #131318;
  --surface: #17171e;
  --surface-2: #1e1e28;
  --border: #272732;
  --border-light: #333340;
  --text: #f2f2f5;
  --text-weak: #8e8e97;
  --primary: #e84343;
  --primary-hover: #c73434;
  --accent: #ffc312;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 36px rgba(0,0,0,.4);
  --shadow-sm: 0 4px 14px rgba(0,0,0,.25);
  --transition: .25s ease;
  --container: 1200px;
  --space: 28px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea {
  font: inherit;
  border: none;
  background: none;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space);
}
.section {
  padding: 80px 0;
}
.section-head {
  max-width: 720px;
  margin: 0 auto 52px;
  text-align: center;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(255, 195, 18, .12);
  border: 1px solid rgba(255, 195, 18, .25);
  border-radius: 999px;
  padding: 5px 18px;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .5px;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.8;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 16, .86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-badge {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #ff7b54);
  border-radius: 10px;
  font-size: 18px;
  font-weight: 900;
  color: #fff;
  box-shadow: 0 4px 14px rgba(232, 67, 67, .35);
}
.brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: .5px;
}
.brand-name em {
  font-style: normal;
  color: var(--primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  transition: var(--transition);
}
.main-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .06);
}
.main-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(232, 67, 67, .35);
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 3px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(13, 13, 16, .94) 0%, rgba(13, 13, 16, .82) 45%, rgba(13, 13, 16, .35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 90px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0, 0, 0, .55);
  border: 1px solid rgba(255, 195, 18, .35);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.5px;
  margin-bottom: 18px;
}
.hero h1 .hl {
  color: var(--primary);
}
.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(242, 242, 245, .8);
  margin-bottom: 32px;
  max-width: 580px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #ff6a3d);
  color: #fff;
  box-shadow: 0 6px 22px rgba(232, 67, 67, .4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(232, 67, 67, .5);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, .35);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(242, 242, 245, .8);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .1);
  padding: 6px 14px;
  border-radius: 999px;
}
.hero-tag i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

/* Feature cards */
.features {
  background: var(--bg-soft);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-light);
  box-shadow: var(--shadow);
}
.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(232, 67, 67, .15), rgba(255, 195, 18, .12));
  border-radius: 14px;
  font-size: 24px;
  margin-bottom: 18px;
}
.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* Showcase cards */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--border-light);
}
.card-img-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--surface-2);
}
.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.card:hover .card-img-wrap img {
  transform: scale(1.05);
}
.card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(13, 13, 16, .5) 0%, transparent 100%);
}
.card-badge {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
  background: rgba(232, 67, 67, .9);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
}
.card-play {
  position: absolute;
  z-index: 2;
  right: 14px;
  bottom: 14px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .18);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  border: 1px solid rgba(255, 255, 255, .25);
  transition: var(--transition);
}
.card:hover .card-play {
  background: var(--primary);
  border-color: var(--primary);
}
.card-body {
  padding: 22px 22px 24px;
}
.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.card-text {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.65;
  margin-bottom: 14px;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-weak);
}
.card-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border-light);
}

/* Scene */
.scene {
  position: relative;
  background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  overflow: hidden;
}
.scene::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(13, 13, 16, .92) 20%, rgba(13, 13, 16, .72) 70%);
}
.scene-inner {
  position: relative;
  z-index: 2;
}
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.scene-card {
  background: rgba(23, 23, 30, .75);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  padding: 34px 26px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.scene-card:hover {
  background: rgba(23, 23, 30, .95);
  transform: translateY(-4px);
  border-color: rgba(255, 195, 18, .35);
}
.scene-icon {
  font-size: 32px;
  margin-bottom: 14px;
}
.scene-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.scene-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px 30px;
  text-align: center;
  transition: var(--transition);
}
.step-card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #ff6a3d);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 4px 14px rgba(232, 67, 67, .4);
}
.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  margin-top: 8px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* FAQ */
.faq {
  background: var(--bg-soft);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--border-light);
}
.faq-item details > summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item details > summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--text-weak);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item details[open] summary::after {
  content: "−";
  color: var(--primary);
}
.faq-item .faq-a {
  padding: 0 24px 20px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* CTA */
.cta {
  position: relative;
  padding: 90px 0;
  text-align: center;
  background: url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 13, 16, .9), rgba(232, 67, 67, .5));
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}
.cta-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  margin-bottom: 16px;
}
.cta-text {
  font-size: 16px;
  color: rgba(242, 242, 245, .8);
  margin-bottom: 30px;
  line-height: 1.8;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: #111;
  font-size: 17px;
  font-weight: 800;
  padding: 14px 36px;
  border-radius: 999px;
  transition: var(--transition);
  box-shadow: 0 6px 22px rgba(0,0,0,.3);
}
.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
  background: var(--accent);
}

/* Footer */
.site-footer {
  background: #0a0a0d;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-weak);
  margin-top: 16px;
  line-height: 1.8;
  max-width: 360px;
}
.footer-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-weak);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.copyright {
  font-size: 13px;
  color: var(--text-weak);
}
.footer-tip {
  font-size: 13px;
  color: rgba(232, 67, 67, .7);
}

/* Responsive */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .showcase-grid {
    grid-template-columns: 1fr 1fr;
  }
  .scene-grid {
    grid-template-columns: 1fr 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 20px var(--space);
    gap: 6px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: var(--shadow);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    width: 100%;
    text-align: center;
    padding: 14px;
    font-size: 16px;
  }
  .hero {
    min-height: 560px;
  }
  .hero-content {
    padding: 70px 0;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .feature-grid,
  .showcase-grid,
  .scene-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 26px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-tags {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-btn {
    width: 100%;
    justify-content: center;
  }
}

/* roulang page: category3 */
:root{
  --primary:#e6485e;
  --primary-dark:#c9324a;
  --primary-light:#ff7a8f;
  --accent:#ff9a3c;
  --bg:#0e0e13;
  --bg-soft:#17171f;
  --card:#1e1e28;
  --text:#f4f4f8;
  --muted:#a2a2b3;
  --border:rgba(255,255,255,0.08);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 40px rgba(0,0,0,0.45);
  --transition:all .25s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(14,14,19,0.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand-badge{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;box-shadow:0 4px 14px rgba(230,72,94,0.4)}
.brand-name{font-size:20px;font-weight:800;letter-spacing:1px}
.brand-name em{font-style:normal;color:var(--primary-light)}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:30px;font-size:14px;font-weight:500;color:var(--muted);transition:var(--transition)}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,0.06)}
.main-nav a.active{color:#fff;background:var(--primary);box-shadow:0 4px 14px rgba(230,72,94,0.35)}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:42px;height:42px;border-radius:8px;background:rgba(255,255,255,0.05);align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:64px 0 24px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid var(--border)}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px}
.footer-title{font-size:16px;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:var(--transition)}
.footer-links a:hover{color:var(--primary-light);padding-left:4px}
.footer-bottom{display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:28px;text-align:center}
.copyright{font-size:13px;color:var(--muted)}
.footer-tip{font-size:13px;color:var(--muted);opacity:.75}
.hero{position:relative;min-height:560px;display:flex;align-items:center;padding:80px 0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;z-index:1}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,14,19,0.92) 0%,rgba(14,14,19,0.65) 55%,rgba(14,14,19,0.35) 100%);z-index:-1}
.hero-inner{max-width:680px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(230,72,94,0.18);border:1px solid rgba(230,72,94,0.35);color:var(--primary-light);font-size:14px;font-weight:600;padding:6px 16px;border-radius:30px;margin-bottom:20px}
.hero h1{font-size:46px;font-weight:900;line-height:1.3;letter-spacing:1px;margin-bottom:18px}
.hero h1 span{color:var(--accent)}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.8;margin-bottom:30px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:40px;font-size:15px;font-weight:700;transition:var(--transition);border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 24px rgba(230,72,94,0.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border-color:rgba(255,255,255,0.25);color:var(--text);font-weight:600}
.btn-outline:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.5)}
.hero-badges{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero-badges li{font-size:13px;color:var(--muted);background:rgba(255,255,255,0.05);border:1px solid var(--border);padding:6px 14px;border-radius:30px}
.section{padding:90px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--primary-light);text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:34px;font-weight:900;line-height:1.4;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--muted)}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;transition:var(--transition);position:relative;overflow:hidden}
.feature-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(230,72,94,0.3)}
.feature-card:hover::after{opacity:1}
.feature-icon{font-size:38px;margin-bottom:18px;display:block}
.feature-card h3{font-size:18px;font-weight:800;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}
.styles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.style-card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:var(--transition)}
.style-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(230,72,94,0.25)}
.style-card img{width:100%;height:220px;object-fit:cover}
.style-card-content{padding:24px}
.style-card-content h3{font-size:20px;font-weight:800;margin-bottom:8px}
.style-card-content p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:14px}
.style-tags{display:flex;flex-wrap:wrap;gap:8px}
.style-tags span{font-size:13px;background:rgba(230,72,94,0.12);color:var(--primary-light);padding:4px 12px;border-radius:20px}
.experience-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;background:var(--bg-soft);border-radius:24px;border:1px solid var(--border);padding:48px;margin-top:30px}
.experience-media img{border-radius:18px;width:100%;height:360px;object-fit:cover;box-shadow:var(--shadow)}
.experience-content h2{font-size:30px;font-weight:900;line-height:1.4;margin-bottom:16px}
.experience-content p{font-size:15px;color:var(--muted);margin-bottom:16px;line-height:1.8}
.experience-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.experience-list li{display:flex;gap:10px;align-items:center;font-size:15px;color:var(--text)}
.experience-list li::before{content:"✓";color:var(--accent);font-weight:800}
.stats-section{background:linear-gradient(135deg,var(--bg-soft) 0%,rgba(230,72,94,0.08) 100%);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item{padding:20px}
.stat-num{font-size:46px;font-weight:900;color:var(--primary-light);line-height:1.2}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;position:relative}
.step-item{text-align:center;padding:32px 20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);position:relative;transition:var(--transition)}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-num{width:52px;height:52px;margin:0 auto 16px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900;color:#fff}
.step-item h3{font-size:18px;font-weight:800;margin-bottom:8px}
.step-item p{font-size:14px;color:var(--muted);line-height:1.7}
.faq-section{background:var(--bg-soft);border-top:1px solid var(--border)}
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(230,72,94,0.3)}
.faq-item details>summary{padding:20px 24px;font-size:16px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;list-style:none}
.faq-item details>summary::-webkit-details-marker{display:none}
.faq-item details>summary::after{content:"+";font-size:24px;color:var(--primary-light);transition:var(--transition);font-weight:400}
.faq-item details[open]>summary::after{transform:rotate(45deg)}
.faq-item details p{padding:0 24px 20px;font-size:15px;color:var(--muted);line-height:1.8}
.cta-section{position:relative;padding:90px 0;text-align:center;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat fixed;z-index:1}
.cta-section::before{content:"";position:absolute;inset:0;background:rgba(14,14,19,0.82);z-index:-1}
.cta-inner{max-width:680px;margin:0 auto}
.cta-inner h2{font-size:36px;font-weight:900;margin-bottom:16px}
.cta-inner p{font-size:16px;color:var(--muted);margin-bottom:32px}
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .styles-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .experience-wrap{grid-template-columns:1fr;gap:32px;padding:32px}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:64px}
  .main-nav{position:fixed;top:64px;left:0;right:0;background:rgba(14,14,19,0.98);flex-direction:column;align-items:flex-start;padding:16px 20px;gap:4px;border-bottom:1px solid var(--border);transform:translateY(-130%);transition:var(--transition);visibility:hidden;opacity:0}
  .main-nav.open{transform:translateY(0);visibility:visible;opacity:1}
  .main-nav a{width:100%;padding:12px 16px}
  .nav-toggle{display:flex}
  .footer-top{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .hero{padding:60px 0;min-height:480px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-cta .btn{padding:12px 22px;font-size:14px}
  .section{padding:64px 0}
  .section-head h2{font-size:28px}
  .experience-media img{height:240px}
  .stats-grid{gap:12px}
  .stat-num{font-size:34px}
  .steps-grid{grid-template-columns:1fr;gap:20px}
}
@media(max-width:520px){
  .features-grid,.styles-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .hero h1{font-size:27px}
  .cta-inner h2{font-size:28px}
}

/* roulang page: category2 */
:root {
  --primary: #e50914;
  --primary-dark: #b20710;
  --primary-light: #ff4d5a;
  --accent: #ff8a00;
  --bg-dark: #0b0f1a;
  --bg-main: #121728;
  --bg-card: #1a2035;
  --bg-soft: #232b45;
  --text-main: #f5f6fa;
  --text-weak: #9aa3b5;
  --text-mute: #6b7488;
  --border: #2a3454;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.2);
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --container: 1200px;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background-color: var(--bg-dark); background-image: radial-gradient(ellipse at 30% 0%, rgba(229, 9, 20, 0.12) 0%, transparent 60%), radial-gradient(ellipse at 80% 30%, rgba(255, 138, 0, 0.06) 0%, transparent 50%); color: var(--text-main); line-height: 1.7; -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; position: relative; }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(229, 9, 20, 0.12); border: 1px solid rgba(229, 9, 20, 0.3); color: var(--primary-light); padding: 6px 18px; border-radius: 40px; font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 16px; text-transform: uppercase; }
.section-title { font-size: 38px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; letter-spacing: -0.5px; }
.section-desc { color: var(--text-weak); font-size: 16px; line-height: 1.8; }

/* Header */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(11, 15, 26, 0.85); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(255, 255, 255, 0.06); transition: var(--transition); }
.site-header.scrolled { background: rgba(11, 15, 26, 0.96); box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-badge { width: 38px; height: 38px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 18px; color: #fff; box-shadow: 0 4px 14px rgba(229, 9, 20, 0.4); flex-shrink: 0; }
.brand-name { font-size: 21px; font-weight: 800; color: var(--text-main); letter-spacing: 0px; white-space: nowrap; }
.brand-name em { font-style: normal; color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { padding: 8px 14px; border-radius: 8px; font-size: 14px; font-weight: 500; color: var(--text-weak); transition: var(--transition); position: relative; }
.main-nav a:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.06); }
.main-nav a.active { color: #fff; background: rgba(229, 9, 20, 0.16); }
.main-nav a.active::after { content: ""; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 18px; height: 3px; background: var(--primary); border-radius: 3px; }
.nav-toggle { display: none; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border-radius: 8px; background: rgba(255, 255, 255, 0.05); }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Page Hero */
.page-hero { padding: 170px 0 80px; position: relative; background-image: url('/assets/images/backpic/back-3.webp'); background-size: cover; background-position: center; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 15, 26, 0.7) 0%, rgba(11, 15, 26, 0.5) 45%, var(--bg-dark) 100%); }
.page-hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(229, 9, 20, 0.15) 0%, transparent 65%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero-inner { max-width: 860px; }
.page-hero .hero-label { display: inline-flex; align-items: center; gap: 8px; background: rgba(229, 9, 20, 0.15); border: 1px solid rgba(229, 9, 20, 0.35); color: var(--primary-light); padding: 6px 16px; border-radius: 40px; font-size: 13px; font-weight: 600; margin-bottom: 20px; letter-spacing: 1px; }
.page-hero h1 { font-size: 50px; font-weight: 900; line-height: 1.25; margin-bottom: 22px; letter-spacing: -1px; }
.page-hero h1 span { color: var(--primary); }
.page-hero p { font-size: 17px; color: rgba(245, 246, 250, 0.85); max-width: 650px; line-height: 1.9; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 36px; margin-top: 20px; flex-wrap: wrap; }
.hero-stats .stat-num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stats .stat-label { font-size: 13px; color: var(--text-weak); margin-top: 4px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 10px; font-size: 15px; font-weight: 700; transition: var(--transition); border: 1px solid transparent; cursor: pointer; letter-spacing: 0.3px; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 6px 24px rgba(229, 9, 20, 0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(229, 9, 20, 0.45); }
.btn-outline { background: transparent; border-color: rgba(255, 255, 255, 0.25); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); transform: translateY(-2px); }
.btn-large { padding: 15px 38px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(229, 9, 20, 0.35); }
.card-media { position: relative; overflow: hidden; aspect-ratio: 16/9; background: var(--bg-soft); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.card:hover .card-media img { transform: scale(1.06); }
.card-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(11, 15, 26, 0.75) 100%); }
.card-badge { position: absolute; top: 12px; left: 12px; z-index: 3; background: rgba(229, 9, 20, 0.9); color: #fff; padding: 3px 12px; border-radius: 20px; font-size: 11px; font-weight: 700; letter-spacing: 0.5px; }
.card-duration { position: absolute; bottom: 10px; right: 12px; z-index: 3; background: rgba(0, 0, 0, 0.7); color: #fff; padding: 2px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; }
.card-body { padding: 16px 18px 18px; }
.card-body h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-body p { font-size: 13px; color: var(--text-weak); line-height: 1.7; }
.card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-mute); }

/* Movie Grid */
.movie-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.movie-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.movie-card:hover { transform: translateY(-6px) scale(1.02); box-shadow: var(--shadow-lg); border-color: rgba(229, 9, 20, 0.4); }
.movie-card .card-media { aspect-ratio: 4/5; }
.movie-card .card-media img { height: 100%; }
.movie-card .card-body { padding: 14px 16px; }
.movie-card .card-body h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.movie-card .card-body .sub { font-size: 12px; color: var(--primary-light); font-weight: 500; }
.movie-card .card-body .info { font-size: 12px; color: var(--text-mute); margin-top: 6px; display: flex; gap: 12px; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 28px; transition: var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0; transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(229, 9, 20, 0.12); border: 1px solid rgba(229, 9, 20, 0.25); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-weak); line-height: 1.8; }

/* Tags */
.tag-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 24px; }
.tag { display: inline-block; padding: 6px 16px; border-radius: 30px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border); font-size: 13px; color: var(--text-weak); transition: var(--transition); }
.tag:hover { background: rgba(229, 9, 20, 0.1); border-color: rgba(229, 9, 20, 0.4); color: #fff; }

/* Scene Section */
.scene-section { background: var(--bg-main); }
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scene-card { display: flex; gap: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px; transition: var(--transition); }
.scene-card:hover { border-color: rgba(229, 9, 20, 0.4); transform: translateX(6px); }
.scene-num { font-size: 32px; font-weight: 900; color: rgba(229, 9, 20, 0.35); line-height: 1; font-style: italic; flex-shrink: 0; }
.scene-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.scene-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }

/* Steps */
.steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-item { text-align: center; padding: 30px 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); transition: var(--transition); position: relative; }
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-num { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 800; margin: 0 auto 14px; box-shadow: 0 4px 14px rgba(229, 9, 20, 0.35); }
.step-item h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 13px; color: var(--text-weak); line-height: 1.7; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; transition: var(--transition); overflow: hidden; }
.faq-item.active { border-color: rgba(229, 9, 20, 0.4); background: var(--bg-soft); }
.faq-item.active .faq-question::after { transform: rotate(45deg); color: var(--primary); }
.faq-question { display: flex; align-items: center; gap: 14px; padding: 20px 24px; font-size: 15px; font-weight: 600; color: var(--text-main); cursor: pointer; background: transparent; width: 100%; text-align: left; }
.faq-question::after { content: "+"; font-size: 24px; color: var(--text-mute); margin-left: auto; font-weight: 400; transition: var(--transition); flex-shrink: 0; line-height: 1; }
.faq-question:hover { color: var(--primary-light); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.faq-answer-inner { padding: 0 24px 22px; font-size: 14px; color: var(--text-weak); line-height: 1.9; }

/* CTA */
.cta-section { position: relative; background-image: url('/assets/images/backpic/back-2.webp'); background-size: cover; background-position: center; background-attachment: fixed; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11, 15, 26, 0.92) 0%, rgba(229, 9, 20, 0.35) 100%); }
.cta-inner { position: relative; z-index: 2; text-align: center; padding: 90px 24px; }
.cta-inner h2 { font-size: 40px; font-weight: 900; margin-bottom: 16px; }
.cta-inner p { font-size: 17px; color: rgba(255, 255, 255, 0.85); max-width: 560px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* Footer */
.site-footer { background: #080b14; border-top: 1px solid rgba(255, 255, 255, 0.05); padding: 60px 0 0; position: relative; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid var(--border); }
.footer-brand p { font-size: 14px; color: var(--text-weak); line-height: 1.8; margin-top: 16px; max-width: 320px; }
.footer-title { font-size: 15px; font-weight: 700; color: var(--text-main); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ""; position: absolute; bottom: 0; left: 0; width: 24px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-weak); transition: var(--transition); }
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; flex-wrap: wrap; gap: 12px; }
.copyright { font-size: 13px; color: var(--text-mute); }
.footer-tip { font-size: 12px; color: var(--text-mute); }

/* Modal */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 2000; background: rgba(0, 0, 0, 0.9); display: none; align-items: center; justify-content: center; padding: 24px; }
.modal.show { display: flex; animation: fadeIn 0.3s ease; }
.modal-content { max-width: 960px; width: 100%; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); animation: slideUp 0.4s ease; }
.modal-close { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; transition: var(--transition); z-index: 10; }
.modal-close:hover { background: var(--primary); transform: rotate(90deg); }
.modal-video { width: 100%; aspect-ratio: 16/9; background: #000; }
.modal-body { padding: 24px 28px 28px; }
.modal-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.modal-body p { font-size: 14px; color: var(--text-weak); line-height: 1.8; }
.modal-btn { margin-top: 18px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* Bento section */
.bento-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: auto auto; gap: 20px; }
.bento-card { border-radius: var(--radius-lg); overflow: hidden; position: relative; min-height: 260px; display: flex; align-items: flex-end; border: 1px solid var(--border); transition: var(--transition); }
.bento-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(229, 9, 20, 0.35); }
.bento-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.bento-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 15, 26, 0.1) 30%, rgba(11, 15, 26, 0.85) 100%); z-index: 1; }
.bento-content { position: relative; z-index: 2; padding: 28px; }
.bento-content .cat { font-size: 12px; font-weight: 700; color: var(--primary-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; display: block; }
.bento-content h3 { font-size: 21px; font-weight: 800; margin-bottom: 6px; line-height: 1.4; }
.bento-content p { font-size: 13px; color: rgba(255, 255, 255, 0.75); line-height: 1.6; }
.bento-tag { display: inline-block; margin-top: 10px; font-size: 12px; color: var(--primary-light); font-weight: 600; }
.bento-tag::after { content: " →"; transition: var(--transition); }
.bento-card:hover .bento-tag::after { transform: translateX(6px); display: inline-block; }
.bento-card-1 { grid-column: span 1; grid-row: span 2; min-height: 540px; }
.bento-card-1 .bento-content h3 { font-size: 26px; }

/* Responsive */
@media (max-width: 1024px) {
  .section { padding: 70px 0; }
  .section-title { font-size: 32px; }
  .movie-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-card-1 { grid-row: span 1; min-height: 320px; }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .page-hero h1 { font-size: 40px; }
  .cta-inner h2 { font-size: 34px; }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav { position: fixed; top: 64px; left: 0; width: 100%; background: rgba(11, 15, 26, 0.98); flex-direction: column; align-items: stretch; padding: 16px 24px; gap: 4px; transform: translateY(-150%); opacity: 0; transition: var(--transition); border-bottom: 1px solid var(--border); backdrop-filter: blur(20px); }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav a { padding: 12px 14px; font-size: 15px; border-radius: 10px; color: var(--text-main); }
  .main-nav a.active { background: rgba(229, 9, 20, 0.14); }
  .nav-toggle { display: flex; }
  .page-hero { padding: 140px 0 50px; }
  .page-hero h1 { font-size: 32px; }
  .hero-stats { gap: 24px; }
  .hero-stats .stat-num { font-size: 24px; }
  .movie-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .scene-grid { grid-template-columns: 1fr; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card-1 { min-height: 280px; }
  .steps-wrap { grid-template-columns: 1fr 1fr; gap: 14px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-inner h2 { font-size: 28px; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 15px; }
  .cta-buttons { flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .movie-grid { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .section-header { margin-bottom: 36px; }
  .page-hero { padding: 120px 0 40px; }
  .page-hero h1 { font-size: 27px; }
  .steps-wrap { grid-template-columns: 1fr; }
  .brand-name { font-size: 18px; }
  .brand-badge { width: 32px; height: 32px; font-size: 15px; }
  .bento-content h3 { font-size: 18px; }
  .faq-question { font-size: 14px; padding: 16px 18px; }
  .faq-answer-inner { padding: 0 18px 18px; }
}
@media (max-width: 360px) {
  .brand-name { font-size: 16px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .page-hero .btn { width: 100%; padding: 14px 20px; }
}

/* roulang page: category5 */
:root{
  --primary:#6D28D9;
  --primary-dark:#5B21B6;
  --primary-deep:#4C1D95;
  --primary-light:#DDD6FE;
  --accent:#D4A853;
  --accent-dark:#B8863B;
  --accent-light:#F1E5C8;
  --bg:#FAF8F5;
  --bg-deep:#171323;
  --bg-soft:#F1EDF9;
  --surface:#FFFFFF;
  --text:#1C1B22;
  --text-weak:#6B7280;
  --text-light:#A79FB5;
  --border:#E9E2DC;
  --radius:20px;
  --radius-sm:12px;
  --radius-lg:28px;
  --shadow:0 10px 30px rgba(109,40,217,0.07);
  --shadow-lg:0 20px 50px rgba(109,40,217,0.14);
  --shadow-gold:0 14px 40px rgba(212,168,83,0.22);
  --max-width:1200px;
  --transition:all .3s ease;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:inherit;
  text-decoration:none;
  transition:var(--transition);
}
ul,ol{
  list-style:none;
}
button{
  border:none;
  background:none;
  cursor:pointer;
  font-family:inherit;
}
input,textarea{
  font-family:inherit;
}
.container{
  width:100%;
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 24px;
}
/* ========== Header ========== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(23,19,35,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:74px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-badge{
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#1C1B22;
  font-weight:800;
  font-size:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 18px rgba(212,168,83,.35);
}
.brand-name{
  font-size:20px;
  font-weight:700;
  color:#fff;
  letter-spacing:1px;
}
.brand-name em{
  font-style:normal;
  color:var(--accent);
  font-weight:800;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  color:rgba(255,255,255,.72);
  font-size:14.5px;
  font-weight:500;
  padding:9px 16px;
  border-radius:999px;
  transition:var(--transition);
}
.main-nav a:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
}
.main-nav a.active{
  color:#1C1B22;
  background:var(--accent);
  font-weight:700;
  box-shadow:0 4px 16px rgba(212,168,83,.35);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:8px;
}
.nav-toggle span{
  width:24px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:var(--transition);
}
/*@media(max-width:1024px){
  .main-nav{
    gap:2px;
  }
  .main-nav a{
    font-size:13px;
    padding:8px 12px;
  }
}
@media(max-width:768px){
  .nav-toggle{
    display:flex;
  }
  .main-nav{
    position:fixed;
    top:74px;
    left:0;
    right:0;
    background:var(--bg-deep);
    flex-direction:column;
    align-items:stretch;
    padding:18px 20px 24px;
    gap:8px;
    transform:translateY(-130%);
    opacity:0;
    pointer-events:none;
    transition:var(--transition);
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
    pointer-events:auto;
  }
  .main-nav a{
    padding:13px 16px;
    font-size:15px;
    text-align:center;
    border-radius:12px;
  }
}
/* ==== Buttons ==== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 32px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  transition:var(--transition);
  cursor:pointer;
  border:2px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#1C1B22;
  box-shadow:0 10px 26px rgba(212,168,83,.35);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 16px 34px rgba(212,168,83,.45);
}
.btn-outline{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:#fff;
}
.btn-outline:hover{
  background:rgba(255,255,255,.1);
  border-color:#fff;
}
.btn-dark{
  background:var(--bg-deep);
  color:#fff;
}
.btn-dark:hover{
  background:#2a2340;
  transform:translateY(-3px);
}
/* ==== Hero ==== */
.category-hero{
  position:relative;
  background:var(--bg-deep);
  overflow:hidden;
  padding:110px 0 90px;
}
.category-hero .bg-image{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.category-hero .bg-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(23,19,35,.3) 0%,rgba(23,19,35,.92) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:920px;
  text-align:center;
  margin:0 auto;
}
.hero-tag{
  display:inline-block;
  padding:8px 24px;
  border-radius:999px;
  background:rgba(212,168,83,.15);
  border:1px solid rgba(212,168,83,.45);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  letter-spacing:2px;
  margin-bottom:22px;
  text-transform:uppercase;
}
.category-hero h1{
  font-size:48px;
  line-height:1.2;
  color:#fff;
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:1px;
}
.category-hero h1 span{
  color:var(--accent);
}
.category-hero .lead{
  color:rgba(255,255,255,.75);
  font-size:18px;
  line-height:1.85;
  max-width:760px;
  margin:0 auto 32px;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
.hero-stats{
  display:flex;
  justify-content:center;
  gap:40px;
  margin-top:56px;
  flex-wrap:wrap;
}
.stat-item{
  text-align:center;
}
.stat-item .num{
  font-size:36px;
  font-weight:800;
  color:#fff;
  line-height:1.2;
}
.stat-item .label{
  color:rgba(255,255,255,.55);
  font-size:13px;
  margin-top:6px;
  letter-spacing:1px;
}
/* ==== Section base ==== */
.section{
  padding:90px 0;
}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 50px;
}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-light);
  padding:6px 18px;
  border-radius:999px;
  letter-spacing:2px;
  margin-bottom:18px;
}
.section-title{
  font-size:36px;
  font-weight:800;
  line-height:1.25;
  color:var(--text);
  margin-bottom:16px;
}
.section-title span{
  color:var(--primary);
}
.section-desc{
  color:var(--text-weak);
  font-size:17px;
  line-height:1.8;
}
/* ==== Cards grid ==== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.feature-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:34px 30px;
  border:1px solid var(--border);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:var(--primary-light);
}
.feature-card .icon-wrap{
  width:64px;
  height:64px;
  border-radius:18px;
  background:linear-gradient(135deg,var(--primary-light),#EEE);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  margin-bottom:22px;
}
.feature-card h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:12px;
  color:var(--text);
}
.feature-card p{
  color:var(--text-weak);
  font-size:14.5px;
  line-height:1.8;
}
/* ==== Cover section ==== */
.cover-section{
  background:var(--bg-soft);
}
.cover-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.cover-card{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:3/4;
  box-shadow:var(--shadow);
  transition:var(--transition);
}
.cover-card:hover{
  transform:translateY(-8px) scale(1.02);
  box-shadow:var(--shadow-lg);
}
.cover-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.cover-card:hover img{
  transform:scale(1.08);
}
.cover-card .cover-info{
  position:absolute;
  inset:auto 0 0 0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.82));
  padding:24px 18px 16px;
  color:#fff;
}
.cover-info h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:4px;
}
.cover-info .meta{
  font-size:12px;
  color:rgba(255,255,255,.75);
}
.cover-card .cover-label{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(212,168,83,.95);
  color:#1C1B22;
  font-size:12px;
  font-weight:700;
  padding:4px 12px;
  border-radius:999px;
  z-index:2;
}
/* ==== Scenes of usage ==== */
.scene-section{
  background:var(--bg-deep);
  color:#fff;
}
.scene-section .section-title{
  color:#fff;
}
.scene-section .section-desc{
  color:rgba(255,255,255,.6);
}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.scene-item{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius);
  padding:32px 28px;
  transition:var(--transition);
}
.scene-item:hover{
  background:rgba(255,255,255,.08);
  transform:translateY(-6px);
  border-color:rgba(212,168,83,.4);
}
.scene-item .step-num{
  font-size:40px;
  font-weight:800;
  color:var(--accent);
  opacity:.9;
  line-height:1;
  margin-bottom:18px;
}
.scene-item h3{
  font-size:19px;
  margin-bottom:12px;
  color:#fff;
}
.scene-item p{
  color:rgba(255,255,255,.62);
  font-size:14.5px;
  line-height:1.8;
}
/* ==== CTA ==== */
.cta-section{
  padding:90px 0 100px;
}
.cta-box{
  background:linear-gradient(120deg,var(--primary-deep),var(--primary-dark) 60%,var(--primary));
  border-radius:var(--radius-lg);
  padding:64px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:'';
  position:absolute;
  top:-60px;
  right:-40px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:rgba(212,168,83,.15);
  filter:blur(40px);
}
.cta-box h2{
  color:#fff;
  font-size:32px;
  margin-bottom:16px;
  position:relative;
  z-index:2;
}
.cta-box p{
  color:rgba(255,255,255,.75);
  font-size:17px;
  max-width:620px;
  margin:0 auto 32px;
  position:relative;
  z-index:2;
}
.cta-box .btn{
  position:relative;
  z-index:2;
}
/* ==== FAQ ==== */
.faq-section{
  background:var(--surface);
}
.faq-list{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.faq-item{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:var(--primary-light);
}
.faq-item summary{
  padding:20px 26px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  position:relative;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:var(--text);
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary::after{
  content:'+';
  font-size:24px;
  color:var(--primary);
  transition:var(--transition);
  flex-shrink:0;
}
.faq-item[open] summary::after{
  content:'−';
  transform:rotate(180deg);
}
.faq-item .faq-body{
  padding:0 26px 22px;
  color:var(--text-weak);
  font-size:15px;
  line-height:1.85;
  border-top:1px dashed var(--border);
  padding-top:14px;
}
/* ==== Footer ==== */
.site-footer{
  background:var(--bg-deep);
  color:#fff;
  padding:70px 0 30px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:50px;
  padding-bottom:50px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-name{
  color:#fff;
}
.footer-brand p{
  margin-top:16px;
  color:rgba(255,255,255,.55);
  font-size:14.5px;
  line-height:1.85;
  max-width:360px;
}
.footer-title{
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--accent);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:rgba(255,255,255,.62);
  font-size:14px;
}
.footer-links a:hover{
  color:var(--accent);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:28px;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom .copyright{
  color:rgba(255,255,255,.4);
  font-size:13px;
}
.footer-bottom .footer-tip{
  color:rgba(255,255,255,.3);
  font-size:13px;
}
/* ==== Responsive ==== */
@media(max-width:1024px){
  .card-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .cover-grid{
    grid-template-columns:repeat(3,1fr);
  }
  .scene-grid{
    grid-template-columns:repeat(2,1fr);
  }
}
@media(max-width:768px){
  .category-hero{
    padding:70px 0 60px;
  }
  .category-hero h1{
    font-size:32px;
  }
  .hero-stats{
    gap:24px;
    margin-top:40px;
  }
  .stat-item .num{
    font-size:28px;
  }
  .section{
    padding:60px 0;
  }
  .section-title{
    font-size:28px;
  }
  .card-grid,
  .cover-grid,
  .scene-grid{
    grid-template-columns:1fr;
  }
  .footer-top{
    grid-template-columns:1fr;
    gap:40px;
  }
  .footer-bottom{
    justify-content:center;
    text-align:center;
  }
  .cta-box{
    padding:40px 24px;
  }
  .cta-box h2{
    font-size:25px;
  }
}
@media(max-width:520px){
  .container{
    padding:0 16px;
  }
  .category-hero h1{
    font-size:27px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .stat-item .num{
    font-size:23px;
  }
  .stat-item .label{
    font-size:11px;
  }
  .section-title{
    font-size:24px;
  }
  .feature-card{
    padding:26px 20px;
  }
}