/* roulang page: index */
/* ===== CSS 设计变量 ===== */
:root {
  --primary: #6A0DAD;
  --primary-dark: #4B0082;
  --primary-light: #9B4DD6;
  --gold: #FFD700;
  --gold-hover: #FFC000;
  --success: #00C853;
  --danger: #E53935;
  --gray: #9E9E9E;
  --gray-light: #E5E7EB;
  --gray-bg: #F9FAFB;
  --white: #FFFFFF;
  --text-title: #1A1A2E;
  --text-body: #333333;
  --text-muted: #6B7280;
  --border-color: #E5E7EB;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
  --transition: all 0.3s ease;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --header-height: 64px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
h1, h2, h3, h4, h5, h6 { color: var(--text-title); line-height: 1.2; font-weight: 700; }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
p { margin-bottom: 0.75rem; }
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 16px;
}
.section-padding { padding: 4rem 0; }
.section-title { text-align: center; margin-bottom: 2.5rem; }
.section-title h2 { position: relative; display: inline-block; }
.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gold);
  margin: 12px auto 0;
  border-radius: 2px;
}
.text-center { text-align: center; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gold);
  color: var(--text-title);
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-hover);
  border-color: var(--gold-hover);
  color: var(--text-title);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-secondary:hover {
  background: var(--white);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-success {
  background: var(--success);
  color: var(--white);
  border-color: var(--success);
}
.btn-success:hover {
  background: #00B84A;
  border-color: #00B84A;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-download {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  padding: 8px 20px;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
}
.btn-download:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn-outline-primary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== Header & Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
  z-index: 1000;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}
.logo i { font-size: 1.6rem; color: var(--gold); }
.logo:hover { color: var(--primary); }
.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-list a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
  padding: 6px 0;
  position: relative;
  text-decoration: none;
}
.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-list a:hover::after,
.nav-list a.active::after { width: 100%; }
.nav-list a:hover { color: var(--primary); }
.nav-list a.active { color: var(--primary); font-weight: 600; }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.search-box {
  display: flex;
  align-items: center;
  background: var(--gray-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 12px;
  transition: var(--transition);
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(106,13,173,0.1);
}
.search-box input {
  border: none;
  background: transparent;
  padding: 8px 0;
  width: 140px;
  outline: none;
  font-size: 0.9rem;
}
.search-box button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  font-size: 1rem;
}
.search-box button:hover { color: var(--primary); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--text-title);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Mobile Nav ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: var(--white);
  box-shadow: var(--shadow-md);
  z-index: 999;
  padding: 1.5rem 1rem;
  transform: translateY(-120%);
  transition: var(--transition);
  opacity: 0;
}
.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
}
.mobile-nav .nav-list {
  flex-direction: column;
  gap: 0.8rem;
  align-items: flex-start;
}
.mobile-nav .nav-list a {
  display: block;
  width: 100%;
  padding: 10px 0;
  font-size: 1.1rem;
}
.mobile-nav .btn-download { margin-top: 0.8rem; width: 100%; text-align: center; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 70vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  margin-top: var(--header-height);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(106,13,173,0.75) 0%, rgba(0,0,0,0.65) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 2rem 1.5rem;
  animation: fadeInUp 0.8s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.hero-content .hero-sub {
  font-size: 1.2rem;
  opacity: 0.92;
  margin-bottom: 2rem;
  line-height: 1.7;
  text-shadow: 0 1px 6px rgba(0,0,0,0.2);
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-buttons .btn { min-width: 160px; }

/* ===== 合集目录 ===== */
.collection-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1.2rem;
}
.collection-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: block;
  min-height: 220px;
}
.collection-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.collection-card .card-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  z-index: 1;
}
.collection-card .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 100%);
  z-index: 2;
}
.collection-card .card-text {
  position: relative;
  z-index: 3;
  padding: 1.8rem 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  min-height: 220px;
}
.collection-card .card-text h3 {
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.collection-card .card-text p {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  margin-bottom: 0;
}
.collection-card:first-child { grid-column: span 2; }
.collection-card:first-child .card-text { min-height: 220px; }

/* ===== 精选条目 卡片 ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.item-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.item-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.item-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--gray-bg);
}
.item-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.item-card:hover .card-img-wrap img { transform: scale(1.05); }
.item-card .card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gold);
  color: var(--text-title);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  z-index: 2;
}
.item-card .card-body {
  padding: 1.2rem 1rem 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.item-card .card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.item-card .card-body .card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
  line-height: 1.5;
  flex: 1;
}
.item-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid var(--gray-bg);
}
.item-card .card-meta .actions i {
  margin-left: 8px;
  cursor: pointer;
  transition: var(--transition);
}
.item-card .card-meta .actions i:hover { color: var(--primary); }

/* ===== 最新资讯 列表 ===== */
.news-list { list-style: none; }
.news-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-bg);
  transition: var(--transition);
}
.news-list li:last-child { border-bottom: none; }
.news-list li:hover { padding-left: 8px; }
.news-list .news-time {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 72px;
}
.news-list .news-tag {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--primary);
  color: var(--white);
  padding: 2px 12px;
  border-radius: 20px;
}
.news-list .news-title {
  flex: 1;
  font-weight: 500;
  color: var(--text-title);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-list .news-title:hover { color: var(--primary); }
.news-list .news-summary {
  flex: 0 0 40%;
  font-size: 0.9rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .news-list .news-summary { display: none; }
  .news-list li { flex-wrap: wrap; gap: 8px; }
}

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--gray-bg);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { background: #F0F0F5; }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-weight: 600;
  color: var(--text-title);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 1rem;
  transition: var(--transition);
}
.faq-question i { transition: var(--transition); color: var(--primary); font-size: 0.9rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
  color: var(--text-body);
  font-size: 0.95rem;
  line-height: 1.7;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 20px 18px;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  text-align: center;
  padding: 4rem 0;
}
.cta-section h2 { color: var(--white); font-size: 2rem; margin-bottom: 0.8rem; }
.cta-section p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 1.8rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-section .btn { min-width: 180px; }

/* ===== Footer ===== */
.footer {
  background: #1A1A2E;
  color: rgba(255,255,255,0.8);
  padding: 3rem 0 1.5rem;
}
.footer .container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
}
.footer-brand .logo { color: var(--white); margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
.footer-social h4 { color: var(--white); font-size: 1rem; margin-bottom: 12px; }
.footer-social .social-icons { display: flex; gap: 14px; }
.footer-social .social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  transition: var(--transition);
  text-decoration: none;
}
.footer-social .social-icons a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}
.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  text-align: center;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--gold); }

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  font-size: 1rem;
}
.empty-state i { font-size: 2.5rem; display: block; margin-bottom: 12px; opacity: 0.5; }

/* ===== Back to Top ===== */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: center;
}
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ===== Floating Share ===== */
.share-float {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 98;
}
.share-float a, .share-float button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.1rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.share-float a:hover, .share-float button:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: scale(1.08);
}
.share-float .share-label {
  position: absolute;
  right: 56px;
  background: var(--text-title);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.share-float a:hover .share-label,
.share-float button:hover .share-label { opacity: 1; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .collection-grid { grid-template-columns: 1fr 1fr; }
  .collection-card:first-child { grid-column: span 1; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-right .search-box { display: none; }
  .nav-right .btn-download { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: block; }
  .hero-content h1 { font-size: 1.8rem; }
  .hero-content .hero-sub { font-size: 1rem; }
  .hero-buttons .btn { min-width: 140px; padding: 10px 20px; }
  .collection-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
  .collection-card .card-text { min-height: 160px; padding: 1.2rem; }
  .collection-card .card-text h3 { font-size: 1rem; }
  .featured-grid { grid-template-columns: 1fr; gap: 1rem; }
  .footer .container { grid-template-columns: 1fr; gap: 1.5rem; }
  .share-float { display: none; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  .section-padding { padding: 2.5rem 0; }
}
@media (max-width: 520px) {
  .collection-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 1.5rem; }
  .hero-content .hero-sub { font-size: 0.9rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 260px; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-bg); }
::-webkit-scrollbar-thumb { background: var(--gray); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* roulang page: article */
/* ===== CSS Reset & Base ===== */
    *, *::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;
        font-size: 1rem;
        line-height: 1.8;
        color: #333333;
        background: #F9FAFB;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: #6A0DAD; text-decoration: none; transition: color 0.25s ease; }
    a:hover { color: #8B2FC9; }
    a:focus-visible { outline: 2px solid #6A0DAD; outline-offset: 2px; }
    ul, ol { list-style: none; }
    button { cursor: pointer; font-family: inherit; font-size: 1rem; border: none; background: none; }
    input { font-family: inherit; font-size: 1rem; }

    /* ===== CSS Variables ===== */
    :root {
        --primary: #6A0DAD;
        --primary-dark: #4B0082;
        --primary-light: #8B2FC9;
        --accent: #FFD700;
        --accent-hover: #FFC107;
        --success: #00C853;
        --danger: #E53935;
        --gray: #9E9E9E;
        --bg: #FFFFFF;
        --bg-light: #F9FAFB;
        --bg-dark: #1A1A2E;
        --text-dark: #1A1A2E;
        --text: #333333;
        --text-light: #666666;
        --text-muted: #9CA3AF;
        --border: #E5E7EB;
        --border-light: #F3F4F6;
        --radius-sm: 6px;
        --radius: 12px;
        --radius-lg: 16px;
        --shadow: 0 2px 8px rgba(0,0,0,0.08);
        --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
        --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
        --max-width: 1200px;
        --header-height: 64px;
        --transition: 0.25s ease;
    }

    /* ===== Container ===== */
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding-left: 16px;
        padding-right: 16px;
    }

    /* ===== Header & Navigation ===== */
    .header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: #FFFFFF;
        box-shadow: 0 2px 4px rgba(0,0,0,0.06);
        height: var(--header-height);
        display: flex;
        align-items: center;
    }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--primary);
        text-decoration: none;
        white-space: nowrap;
    }
    .logo i { font-size: 1.5rem; }
    .logo:hover { color: var(--primary-dark); }
    .nav-list {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-list li a {
        display: block;
        padding: 8px 16px;
        color: #333333;
        font-size: 0.95rem;
        font-weight: 500;
        border-radius: var(--radius-sm);
        transition: background var(--transition), color var(--transition);
        position: relative;
    }
    .nav-list li a:hover { color: var(--primary); background: rgba(106,13,173,0.06); }
    .nav-list li a.active {
        color: var(--primary);
        font-weight: 600;
    }
    .nav-list li a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 24px;
        height: 3px;
        background: var(--primary);
        border-radius: 2px;
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg-light);
        border: 1px solid #D1D5DB;
        border-radius: var(--radius-sm);
        padding: 0 12px;
        transition: border-color var(--transition);
        width: 180px;
    }
    .search-box:focus-within { border-color: var(--primary); }
    .search-box input {
        border: none;
        background: transparent;
        padding: 8px 8px 8px 0;
        width: 100%;
        outline: none;
        font-size: 0.9rem;
        color: var(--text);
    }
    .search-box input::placeholder { color: var(--text-muted); }
    .search-box button {
        color: var(--text-light);
        font-size: 0.9rem;
        padding: 4px;
        transition: color var(--transition);
    }
    .search-box button:hover { color: var(--primary); }
    .btn-download {
        background: var(--primary);
        color: #FFFFFF;
        padding: 8px 20px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        font-size: 0.9rem;
        transition: background var(--transition), transform var(--transition);
        white-space: nowrap;
    }
    .btn-download:hover { background: var(--primary-dark); color: #FFFFFF; transform: translateY(-1px); }
    .btn-download:active { transform: translateY(0); }

    /* Hamburger */
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
        cursor: pointer;
        background: none;
        border: none;
    }
    .hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-dark);
        border-radius: 2px;
        transition: var(--transition);
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb {
        background: #FFFFFF;
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
        font-size: 0.9rem;
        color: var(--text-light);
    }
    .breadcrumb .container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
    .breadcrumb a { color: var(--text-light); }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .separator { color: var(--text-muted); }
    .breadcrumb .current { color: var(--text); font-weight: 500; }

    /* ===== Article Main ===== */
    .article-main {
        padding: 2.5rem 0 4rem;
        background: #FFFFFF;
    }
    .article-wrapper {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 16px;
    }
    .article-header {
        margin-bottom: 2rem;
        text-align: center;
    }
    .article-header h1 {
        font-size: 2.2rem;
        font-weight: 700;
        color: var(--text-dark);
        line-height: 1.3;
        margin-bottom: 1rem;
    }
    .article-meta {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
        font-size: 0.9rem;
        color: var(--text-light);
    }
    .article-meta .category-tag {
        display: inline-block;
        background: rgba(106,13,173,0.10);
        color: var(--primary);
        padding: 2px 14px;
        border-radius: 20px;
        font-size: 0.85rem;
        font-weight: 500;
    }
    .article-meta .date {
        display: flex;
        align-items: center;
        gap: 4px;
        color: var(--text-muted);
    }
    .article-meta .date i { font-size: 0.85rem; }

    /* ===== Article Content ===== */
    .article-content {
        font-size: 1.05rem;
        line-height: 1.8;
        color: var(--text);
    }
    .article-content p { margin-bottom: 1.5em; }
    .article-content h2 {
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--text-dark);
        margin-top: 2.2rem;
        margin-bottom: 0.8rem;
        line-height: 1.3;
    }
    .article-content h3 {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-top: 1.8rem;
        margin-bottom: 0.6rem;
        line-height: 1.3;
    }
    .article-content img {
        max-width: 100%;
        border-radius: var(--radius);
        margin: 1.5rem auto;
        box-shadow: var(--shadow);
    }
    .article-content blockquote {
        border-left: 4px solid var(--primary);
        background: var(--bg-light);
        padding: 1rem 1.5rem;
        margin: 1.5rem 0;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-light);
        font-style: italic;
    }
    .article-content ul,
    .article-content ol {
        padding-left: 1.5rem;
        margin-bottom: 1.5em;
    }
    .article-content ul { list-style: disc; }
    .article-content ol { list-style: decimal; }
    .article-content li { margin-bottom: 0.4em; }
    .article-content code {
        background: #F3F4F6;
        padding: 2px 8px;
        border-radius: 4px;
        font-family: monospace;
        font-size: 0.9em;
        color: var(--primary-dark);
    }
    .article-content pre {
        background: #1A1A2E;
        color: #E5E7EB;
        padding: 1.2rem 1.5rem;
        border-radius: var(--radius);
        overflow-x: auto;
        margin: 1.5rem 0;
        font-size: 0.9rem;
        line-height: 1.6;
    }
    .article-content pre code {
        background: transparent;
        color: inherit;
        padding: 0;
        font-size: inherit;
    }
    .article-content a { text-decoration: underline; text-underline-offset: 2px; }

    /* ===== Article Not Found ===== */
    .article-notfound {
        text-align: center;
        padding: 4rem 2rem;
        background: var(--bg-light);
        border-radius: var(--radius);
        margin: 2rem 0;
    }
    .article-notfound i { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; }
    .article-notfound h2 { font-size: 1.5rem; color: var(--text-dark); margin-bottom: 0.5rem; }
    .article-notfound p { color: var(--text-light); margin-bottom: 1.5rem; }
    .btn-backhome {
        display: inline-block;
        background: var(--primary);
        color: #FFFFFF;
        padding: 10px 28px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        transition: background var(--transition), transform var(--transition);
    }
    .btn-backhome:hover { background: var(--primary-dark); color: #FFFFFF; transform: translateY(-2px); }

    /* ===== Share CTA ===== */
    .article-share {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        margin-top: 2.5rem;
        padding-top: 2rem;
        border-top: 1px solid var(--border);
    }
    .article-share span { font-size: 0.9rem; color: var(--text-light); }
    .article-share a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--bg-light);
        color: var(--text-light);
        font-size: 1.1rem;
        transition: background var(--transition), color var(--transition), transform var(--transition);
    }
    .article-share a:hover { transform: translateY(-2px); }
    .article-share .share-wechat:hover { background: #07C160; color: #FFFFFF; }
    .article-share .share-weibo:hover { background: #E6162D; color: #FFFFFF; }
    .article-share .share-qq:hover { background: #12B7F5; color: #FFFFFF; }
    .article-share .share-fav:hover { background: var(--accent); color: #1A1A2E; }

    /* ===== Related Posts ===== */
    .related-section {
        background: var(--bg-light);
        padding: 3rem 0 4rem;
    }
    .related-section .section-title {
        text-align: center;
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 2rem;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    .related-card {
        background: #FFFFFF;
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: transform var(--transition), box-shadow var(--transition);
    }
    .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .related-card .card-img {
        width: 100%;
        aspect-ratio: 16 / 9;
        object-fit: cover;
        display: block;
    }
    .related-card .card-body {
        padding: 1rem 1.2rem 1.2rem;
    }
    .related-card .card-body h3 {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-dark);
        line-height: 1.4;
        margin-bottom: 0.4rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-card .card-body p {
        font-size: 0.85rem;
        color: var(--text-light);
        line-height: 1.5;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .back-home-wrap {
        text-align: center;
        margin-top: 2.5rem;
    }
    .back-home-wrap a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-weight: 600;
        font-size: 1rem;
        transition: gap var(--transition);
    }
    .back-home-wrap a:hover { gap: 10px; }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-dark);
        color: #D1D5DB;
        padding: 3rem 0 1.5rem;
    }
    .footer .container {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 2.5rem;
    }
    .footer-brand .logo { color: #FFFFFF; margin-bottom: 1rem; }
    .footer-brand .logo i { color: var(--accent); }
    .footer-brand p {
        font-size: 0.9rem;
        line-height: 1.7;
        color: #9CA3AF;
        max-width: 480px;
    }
    .footer-social h4 {
        font-size: 1rem;
        font-weight: 600;
        color: #FFFFFF;
        margin-bottom: 0.8rem;
    }
    .social-icons {
        display: flex;
        gap: 12px;
    }
    .social-icons a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255,255,255,0.08);
        color: #D1D5DB;
        font-size: 1.2rem;
        transition: background var(--transition), color var(--transition), transform var(--transition);
    }
    .social-icons a:hover { transform: translateY(-3px); }
        .social-icons a:nth-child(1):hover { background: #07C160; color: #FFFFFF; }
        .social-icons a:nth-child(2):hover { background: #E6162D; color: #FFFFFF; }
        .social-icons a:nth-child(3):hover { background: #12B7F5; color: #FFFFFF; }
    .footer-bottom {
        grid-column: 1 / -1;
        border-top: 1px solid rgba(255,255,255,0.08);
        padding-top: 1.5rem;
        margin-top: 1rem;
        text-align: center;
        font-size: 0.85rem;
        color: #6B7280;
    }
    .footer-bottom a { color: #9CA3AF; }
    .footer-bottom a:hover { color: #FFFFFF; }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
        .nav-list li a { padding: 8px 12px; font-size: 0.9rem; }
        .search-box { width: 140px; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .article-header h1 { font-size: 1.8rem; }
    }

    @media (max-width: 767px) {
        .hamburger { display: flex; }
        .nav-list {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: #FFFFFF;
            flex-direction: column;
            padding: 16px 24px;
            gap: 4px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.10);
            transform: translateY(-120%);
            opacity: 0;
            pointer-events: none;
            transition: transform 0.35s ease, opacity 0.35s ease;
            z-index: 99;
        }
        .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
        .nav-list li a { padding: 12px 16px; font-size: 1rem; width: 100%; }
        .nav-list li a.active::after { display: none; }
        .nav-list li a.active { background: rgba(106,13,173,0.08); border-radius: var(--radius-sm); }
        .header-actions .search-box { display: none; }
        .btn-download { padding: 8px 16px; font-size: 0.85rem; }

        .article-header h1 { font-size: 1.5rem; }
        .article-wrapper { padding: 0 12px; }
        .article-content { font-size: 1rem; }
        .article-content h2 { font-size: 1.35rem; }
        .article-content h3 { font-size: 1.1rem; }

        .related-grid { grid-template-columns: 1fr; }
        .related-section .section-title { font-size: 1.4rem; }

        .footer .container { grid-template-columns: 1fr; gap: 1.5rem; }
        .footer-brand p { max-width: 100%; }
        .footer-social h4 { text-align: center; }
        .social-icons { justify-content: center; }

        .article-meta { flex-direction: column; gap: 8px; }
        .article-share { flex-wrap: wrap; }
    }

    @media (max-width: 520px) {
        .article-header h1 { font-size: 1.3rem; }
        .breadcrumb { font-size: 0.8rem; padding: 8px 0; }
        .related-card .card-body h3 { font-size: 0.95rem; }
    }

    /* ===== Print ===== */
    @media print {
        .header, .footer, .related-section, .article-share, .breadcrumb { display: none; }
        .article-main { padding: 0; background: #FFFFFF; }
        .article-content { color: #000; }
    }

/* roulang page: category1 */
/* ===== CSS变量 ===== */
        :root {
            --primary: #6A0DAD;
            --primary-dark: #4B0082;
            --primary-light: #8B2FC9;
            --gold: #FFD700;
            --gold-hover: #E6C200;
            --green: #00C853;
            --green-hover: #00B84A;
            --bg-white: #FFFFFF;
            --bg-light: #F9FAFB;
            --bg-dark: #1A1A2E;
            --text-dark: #1A1A2E;
            --text-body: #333333;
            --text-muted: #6B7280;
            --border-color: #E5E7EB;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
            --shadow-nav: 0 2px 4px rgba(0, 0, 0, 0.06);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
            --gap: 1.5rem;
            --section-gap: 4rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.2;
            font-weight: 700;
        }

        h1 {
            font-size: 2.5rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.25rem;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 16px;
        }

        /* ===== 导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: var(--shadow-nav);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo i {
            font-size: 1.5rem;
            color: var(--primary);
        }
        .logo:hover {
            color: var(--primary-dark);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-list a {
            color: var(--text-body);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: color 0.2s ease;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.25s ease;
        }
        .nav-list a:hover {
            color: var(--primary);
        }
        .nav-list a:hover::after {
            width: 100%;
        }
        .nav-list a.active {
            color: var(--primary);
        }
        .nav-list a.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-input);
            padding: 0 12px;
            transition: border-color 0.2s ease;
        }
        .search-box:focus-within {
            border-color: var(--primary);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 8px 8px 0;
            width: 150px;
            font-size: 0.9rem;
            color: var(--text-body);
            outline: none;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 8px 4px;
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }
        .search-box button:hover {
            color: var(--primary);
        }

        .btn-download {
            background: var(--primary);
            color: var(--bg-white);
            border: none;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
            white-space: nowrap;
        }
        .btn-download:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-download:active {
            transform: translateY(0);
        }

        /* 汉堡菜单 */
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            width: 100%;
            height: calc(100vh - 64px);
            background: var(--bg-white);
            z-index: 999;
            padding: 2rem 1.5rem;
            flex-direction: column;
            gap: 1.5rem;
            overflow-y: auto;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            font-size: 1.1rem;
            color: var(--text-body);
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .mobile-nav a.active {
            color: var(--primary);
        }
        .mobile-nav .btn-download {
            margin-top: 0.5rem;
            text-align: center;
            padding: 12px 0;
            font-size: 1rem;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            width: 100%;
            min-height: 500px;
            height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(74, 0, 130, 0.78) 0%, rgba(0, 0, 0, 0.70) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            padding: 0 20px;
            animation: fadeInUp 0.8s ease forwards;
        }
        .hero-content h1 {
            font-size: 3rem;
            color: var(--bg-white);
            margin-bottom: 1rem;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .hero-content p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .hero-btns {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-btns .btn-primary {
            background: var(--gold);
            color: var(--text-dark);
            border: none;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
        }
        .hero-btns .btn-primary:hover {
            background: var(--gold-hover);
            transform: translateY(-2px);
        }
        .hero-btns .btn-secondary {
            background: transparent;
            color: var(--bg-white);
            border: 2px solid rgba(255, 255, 255, 0.8);
            padding: 12px 34px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
        }
        .hero-btns .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--bg-white);
            transform: translateY(-2px);
        }

        @keyframes fadeInUp {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--primary);
            margin: 12px auto 0;
            border-radius: 2px;
        }
        .section-title p {
            color: var(--text-muted);
            margin-top: 0.75rem;
            font-size: 1.05rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-bg-light {
            background: var(--bg-light);
        }
        .section-bg-dark {
            background: var(--bg-dark);
            color: var(--bg-white);
        }
        .section-bg-dark .section-title h2 {
            color: var(--bg-white);
        }
        .section-bg-dark .section-title h2::after {
            background: var(--gold);
        }
        .section-bg-dark .section-title p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 热门游戏分类卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: var(--gap);
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            cursor: default;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .category-card .card-body {
            padding: 1rem 1.2rem 1.2rem;
        }
        .category-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
            color: var(--text-dark);
        }
        .category-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .category-card .badge {
            display: inline-block;
            background: var(--primary);
            color: var(--bg-white);
            font-size: 0.75rem;
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        .category-card .badge.gold {
            background: var(--gold);
            color: var(--text-dark);
        }
        .category-card .badge.green {
            background: var(--green);
            color: var(--bg-white);
        }

        /* ===== 卖点区域 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 2rem;
        }
        .feature-item {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-item .icon {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .feature-item h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .feature-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 适用场景 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--gap);
        }
        .scenario-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-card .emoji {
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }
        .scenario-card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
        }
        .scenario-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 流程步骤 ===== */
        .steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 200px;
            max-width: 260px;
            text-align: center;
            position: relative;
            padding: 1.5rem 1rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-card);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .step-item .step-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
            margin-bottom: 0.5rem;
        }
        .step-item h3 {
            font-size: 1.1rem;
            color: var(--bg-white);
            margin-bottom: 0.4rem;
        }
        .step-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            background: var(--bg-light);
            transition: background 0.2s ease, color 0.2s ease;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: var(--border-color);
            color: var(--primary);
        }
        .faq-question .icon {
            font-size: 1.2rem;
            transition: transform 0.3s ease;
            color: var(--text-muted);
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            color: var(--text-body);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 1rem 1.5rem 1.5rem;
        }

        .section-bg-light .faq-item {
            background: var(--bg-white);
        }
        .section-bg-light .faq-question {
            background: var(--bg-light);
        }
        .section-bg-light .faq-question:hover {
            background: var(--border-color);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 4rem 0;
            text-align: center;
        }
        .cta-section .container {
            max-width: 700px;
        }
        .cta-section h2 {
            color: var(--bg-white);
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 2rem;
        }
        .cta-section .btn-cta {
            background: var(--gold);
            color: var(--text-dark);
            border: none;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
        }
        .cta-section .btn-cta:hover {
            background: var(--gold-hover);
            transform: translateY(-2px);
        }
        .cta-section .btn-cta:active {
            transform: translateY(0);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
        }
        .footer .container {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            justify-content: space-between;
        }
        .footer-brand {
            flex: 1 1 320px;
        }
        .footer-brand .logo {
            color: var(--bg-white);
            font-size: 1.3rem;
            margin-bottom: 0.75rem;
            display: inline-flex;
        }
        .footer-brand .logo i {
            color: var(--gold);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 0.5rem;
        }
        .footer-social h4 {
            color: var(--bg-white);
            font-size: 1rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .social-icons {
            display: flex;
            gap: 1rem;
        }
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.2rem;
            transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
        }
        .social-icons a:hover {
            background: var(--primary);
            color: var(--bg-white);
            transform: translateY(-2px);
        }
        .footer-bottom {
            width: 100%;
            text-align: center;
            padding-top: 2rem;
            margin-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .nav-list {
                display: none;
            }
            .header-actions .search-box {
                display: none;
            }
            .header-actions .btn-download {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero {
                min-height: 420px;
                height: 60vh;
            }
            .category-grid {
                grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            }
            .features-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .steps {
                flex-direction: column;
                align-items: center;
            }
            .step-item {
                max-width: 100%;
                width: 100%;
            }
        }

        @media (max-width: 767px) {
            .hero {
                min-height: 360px;
                height: 50vh;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content p {
                font-size: 0.95rem;
                margin-bottom: 1.5rem;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-secondary {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .category-card .card-body {
                padding: 0.75rem 0.9rem 1rem;
            }
            .category-card .card-body h3 {
                font-size: 0.95rem;
            }
            .category-card .card-body p {
                font-size: 0.8rem;
                -webkit-line-clamp: 1;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .feature-item {
                padding: 1.5rem 1rem;
            }
            .footer .container {
                flex-direction: column;
                gap: 1.5rem;
            }
            .footer-brand {
                flex: 1 1 auto;
            }
            .footer-social {
                text-align: left;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.85rem 1.2rem;
            }
            .faq-answer {
                font-size: 0.88rem;
            }
            .scenario-card {
                padding: 1.5rem 1.2rem;
            }
            .scenario-card h3 {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero {
                min-height: 300px;
                height: 45vh;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-secondary {
                width: 100%;
                max-width: 260px;
                text-align: center;
            }
        }