/* roulang page: index */
:root {
  --primary: #6A0DAD;
  --accent: #FF2D95;
  --cyan: #00E5CC;
  --bg: #0D0A1A;
  --bg-card: #151026;
  --bg-panel: #1C1535;
  --bg-alt: #120D24;
  --text: #E8E6F2;
  --text-dim: #9A94B8;
  --border: rgba(255,255,255,0.07);
  --radius-card: 14px;
  --radius-btn: 999px;
  --radius-input: 8px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(106,13,173,0.25);
  --font-primary: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header Navigation ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  background: rgba(13,10,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  z-index: 1000;
}
.nav-wrap { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.35rem; font-weight: 900; letter-spacing: -0.5px;
  color: var(--text);
  white-space: nowrap;
}
.logo-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent), var(--primary));
  box-shadow: 0 0 12px rgba(255,45,149,0.3);
  flex-shrink: 0;
}
.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: block; padding: 6px 16px;
  font-size: 0.95rem; font-weight: 500;
  color: var(--text-dim);
  border-radius: 999px;
  transition: color 0.2s ease;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a.active { color: var(--accent); font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.search-box { display: flex; align-items: center; gap: 0; }
.search-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.search-btn:hover { color: var(--accent); border-color: rgba(255,45,149,0.3); }
.search-input {
  max-width: 0; height: 40px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text);
  border-radius: 999px;
  padding: 0 0;
  font-size: 0.9rem;
  transition: max-width 0.3s ease, padding 0.3s ease;
}
.search-input.open {
  max-width: 180px; padding: 0 16px;
  border-color: rgba(0,229,204,0.4);
}
.menu-toggle { display: none; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #1A0B2E 0%, var(--bg) 70%);
  padding: 150px 0 100px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 80px), 0 100%);
}
.hero::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; bottom: 80px;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover; background-position: center;
  opacity: 0.08;
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: center; position: relative; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,45,149,0.12);
  border: 1px solid rgba(255,45,149,0.3);
  color: var(--accent);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 20px;
}
.hero-badge::before { content: ""; width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; }
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}
.hero h1 .highlight { color: var(--accent); }
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-dim);
  margin-bottom: 30px;
  max-width: 560px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 0.95rem; font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(255,45,149,0.3); }
.btn-primary:hover { background: #FF4AAD; box-shadow: 0 10px 30px rgba(255,45,149,0.4); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.2); color: var(--text); }
.btn-outline:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.35); }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { display: flex; flex-direction: column; }
.stat-num {
  font-size: 1.6rem; font-weight: 800;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  font-family: "SF Mono", "JetBrains Mono", monospace;
}
.stat-label { font-size: 0.85rem; color: var(--text-dim); }
.hero-visual { position: relative; }
.hero-visual img {
  width: 100%; border-radius: 16px;
  box-shadow: 0 0 50px rgba(255,45,149,0.1), 0 20px 60px rgba(0,0,0,0.5);
}
.hero-img-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem; font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(255,45,149,0.4);
}

/* ===== Section Common ===== */
section { padding: 70px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.8vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.3px;
}
.section-head p { color: var(--text-dim); font-size: 0.95rem; margin-top: 8px; }
.section-link { color: var(--accent); font-weight: 600; font-size: 0.95rem; white-space: nowrap; }
.section-link:hover { text-decoration: underline; }

/* ===== Services ===== */
.services { background: var(--bg); }
.service-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 22px;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  opacity: 0;
  transition: opacity 0.2s ease;
}
.service-card:hover { background: var(--bg-panel); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(106,13,173,0.2);
  color: var(--accent);
  font-size: 1.2rem;
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.service-card p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.6; }
.card-arrow {
  position: absolute; right: 16px; bottom: 16px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.service-card:hover .card-arrow { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===== Stats ===== */
.stats-section { background: var(--bg-alt); border-top: 1px solid rgba(255,255,255,0.05); }
.stats-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 60px; align-items: center; }
.stats-intro h2 { font-size: clamp(1.8rem, 3.8vw, 2.4rem); font-weight: 800; margin-bottom: 16px; }
.stats-intro p { color: var(--text-dim); font-size: 0.95rem; line-height: 1.8; }
.stats-list { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-group { text-align: center; position: relative; padding: 20px 8px; }
.stat-group + .stat-group::before {
  content: "";
  position: absolute; left: 0; top: 20%; bottom: 20%; width: 1px; background: rgba(255,255,255,0.08);
}
.stat-num-lg {
  display: block;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  font-family: "SF Mono", "JetBrains Mono", monospace;
  transition: text-shadow 0.2s ease;
}
.stat-group:hover .stat-num-lg { text-shadow: 0 0 30px rgba(0,229,204,0.4); }
.stat-group span:last-child { display: block; font-size: 0.85rem; color: var(--text-dim); margin-top: 6px; }

/* ===== Cases ===== */
.cases { background: var(--bg); }
.case-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.case-large {
  grid-column: span 6;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.case-large:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.case-large img { width: 45%; object-fit: cover; min-height: 320px; }
.case-large-content { padding: 28px; position: relative; flex: 1; }
.badge-accent {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem; font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.case-large-content h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 14px; }
.case-large-content ul li {
  font-size: 0.9rem; color: var(--text-dim);
  padding: 7px 0 7px 20px;
  position: relative;
  border-bottom: 1px dashed rgba(255,255,255,0.05);
}
.case-large-content ul li:last-child { border-bottom: none; }
.case-large-content ul li::before {
  content: "";
  position: absolute; left: 0; top: 16px;
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
}
.case-small {
  grid-column: span 3;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.case-small:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.case-small img { width: 100%; height: 140px; object-fit: cover; }
.case-body { padding: 20px; }
.case-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.tag {
  font-size: 0.72rem;
  color: var(--text-dim);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
}
.rating { color: #FFD700; font-size: 0.85rem; letter-spacing: 1px; }

/* ===== Plans ===== */
.plans { background: var(--bg-alt); border-top: 1px solid rgba(255,255,255,0.05); }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px;
  display: flex; flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.plan-card.recommended {
  transform: scale(1.03);
  border-color: rgba(255,45,149,0.4);
  box-shadow: 0 0 40px rgba(255,45,149,0.08);
}
.plan-card.recommended:hover { transform: scale(1.03) translateY(-4px); }
.recommend-badge {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem; font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.plan-num {
  font-size: 2rem; font-weight: 800;
  color: var(--cyan);
  font-family: "SF Mono", "JetBrains Mono", monospace;
  margin-bottom: 8px;
}
.plan-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 14px; }
.plan-card ul { margin-bottom: 24px; flex: 1; }
.plan-card ul li {
  font-size: 0.9rem; color: var(--text-dim);
  padding: 6px 0 6px 22px;
  position: relative;
}
.plan-card ul li::before {
  content: "✓";
  position: absolute; left: 0;
  color: var(--cyan);
  font-weight: 700;
}
.plan-card .btn { width: 100%; }

/* ===== FAQ ===== */
.faq { background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); position: relative; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item[open] { border-left: 3px solid var(--accent); padding-left: 18px; }
.faq-item summary {
  padding: 20px 0;
  font-size: 1rem; font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem; font-weight: 400;
  color: var(--text-dim);
  transition: transform 0.2s ease;
}
.faq-item[open] summary { color: var(--accent); }
.faq-item[open] summary::after { transform: rotate(45deg); color: var(--accent); }
.faq-item p {
  padding: 0 0 20px;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.8;
}

/* ===== CTA Panel ===== */
.cta-panel { padding: 40px 0 90px; background: var(--bg); }
.cta-inner {
  background: linear-gradient(135deg, var(--bg-panel) 0%, #2A1B4D 100%);
  border-radius: 20px;
  padding: 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  border: 1px solid rgba(255,255,255,0.06);
}
.cta-left h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; margin-bottom: 10px; }
.cta-left p { color: var(--text-dim); margin-bottom: 16px; font-size: 0.95rem; }
.mail-link { color: var(--cyan); font-weight: 600; font-size: 1rem; }
.mail-link:hover { text-decoration: underline; }

/* ===== Footer ===== */
.site-footer { background: #0A0812; border-top: 1px solid rgba(255,255,255,0.06); padding-top: 60px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-bottom: 40px; }
.footer-col .logo { margin-bottom: 16px; }
.footer-col p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.7; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { font-size: 0.85rem; color: var(--text-dim); transition: color 0.2s ease; }
.footer-col ul a:hover { color: var(--accent); }
.footer-update li { display: flex; flex-direction: column; }
.footer-update time { font-size: 0.75rem; color: rgba(255,255,255,0.3); margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.04);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
}

/* ===== Responsive ===== */
@media screen and (max-width: 75em) {
  .container { max-width: 1120px; }
  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .case-large { grid-column: span 12; }
  .case-small { grid-column: span 6; }
}

@media screen and (max-width: 64em) {
  section { padding: 60px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 130px 0 90px; }
  .stats-grid { grid-template-columns: 1fr; gap: 40px; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan-card.recommended { transform: scale(1.02); }
  .plan-card.recommended:hover { transform: scale(1.02) translateY(-4px); }
  .cta-inner { flex-direction: column; text-align: center; padding: 36px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 40em) {
  body { font-size: 15px; }
  .site-header { height: 64px; }
  .nav-wrap { height: 64px; }
  .menu-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(13,10,26,0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding: 16px 24px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease;
  }
  .main-nav.open { max-height: 400px; opacity: 1; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav a { padding: 12px 16px; border-radius: 8px; font-size: 1rem; }
  .main-nav a:hover { background: rgba(255,255,255,0.04); }
  .search-input.open { max-width: 140px; }
  .hero { padding: 110px 0 80px; clip-path: none; }
  .hero h1 { font-size: 2rem; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-visual { margin-top: 10px; }
  .service-grid { grid-template-columns: 1fr; }
  .stats-list { grid-template-columns: repeat(2, 1fr); gap: 20px 0; }
  .stat-group:nth-child(3)::before { display: none; }
  .case-grid { grid-template-columns: 1fr; }
  .case-large { flex-direction: column; }
  .case-large img { width: 100%; min-height: 200px; }
  .case-small { grid-column: span 1; }
  .case-small img { height: 180px; }
  .cta-inner { padding: 28px 20px; }
  .cta-inner .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-stats { flex-direction: column; gap: 14px; }
  .search-input { display: none; }
  .search-input.open { display: block; position: absolute; right: 70px; }
}

/* roulang page: category1 */
:root {
  --primary: #6A0DAD;
  --accent: #FF2D95;
  --cyan: #00E5CC;
  --bg: #0D0A1A;
  --bg-card: #151026;
  --bg-panel: #1C1535;
  --bg-alt: #120D24;
  --text: #E8E6F2;
  --text-dim: #9A94B8;
  --border: rgba(255,255,255,0.07);
  --radius-card: 14px;
  --radius-btn: 999px;
  --radius-input: 8px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(106,13,173,0.25);
  --font-primary: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
ul, ol, p, h1, h2, h3, h4 { margin: 0; padding: 0; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  background: rgba(13,10,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  z-index: 1000;
}
.nav-wrap { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.35rem; font-weight: 900; letter-spacing: -0.5px;
  color: var(--text);
  white-space: nowrap;
}
.logo-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent), var(--primary));
  box-shadow: 0 0 12px rgba(255,45,149,0.3);
  flex-shrink: 0;
}
.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: block; padding: 6px 16px;
  font-size: 0.95rem; font-weight: 500;
  color: var(--text-dim);
  border-radius: 999px;
  transition: color 0.2s ease;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a.active { color: var(--accent); font-weight: 600; }
.main-nav a.active::after {
  content: "";
  display: block;
  height: 2px;
  width: 20px;
  margin: 4px auto 0;
  background: var(--accent);
  border-radius: 2px;
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.search-box { display: flex; align-items: center; gap: 0; }
.search-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.search-btn:hover { color: var(--accent); border-color: rgba(255,45,149,0.3); }
.search-input {
  max-width: 0; height: 40px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text);
  border-radius: 999px;
  padding: 0;
  font-size: 0.9rem;
  transition: max-width 0.3s ease, padding 0.3s ease;
}
.search-input.open {
  max-width: 180px; padding: 0 16px;
  border-color: rgba(0,229,204,0.4);
}
.menu-toggle { display: none; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: #4a4462; }
.breadcrumb-current { color: var(--text); font-weight: 600; }
/* ===== 分类页 Hero ===== */
.category-hero {
  position: relative;
  background: linear-gradient(135deg, #1A0B2E 0%, var(--bg) 75%);
  padding: 130px 0 70px;
  min-height: 320px;
  border-bottom: 1px solid var(--border);
}
.category-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.07;
  pointer-events: none;
}
.category-hero .container { position: relative; }
.category-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  max-width: 720px;
}
.category-hero h1 .highlight { color: var(--accent); }
.cat-desc {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.75;
}
.cat-count {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,229,204,0.08);
  border: 1px solid rgba(0,229,204,0.2);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-top: 28px;
}
.cat-count strong {
  color: var(--cyan);
  font-size: 1.3rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
/* ===== 子分类标签行 ===== */
.cat-tags-section {
  padding: 42px 0 10px;
  background: var(--bg);
}
.chip-row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
}
.chip-row::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  padding: 7px 20px;
  border: 1px solid #2A2440;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-dim);
  background: transparent;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.chip:hover { color: var(--text); border-color: rgba(255,45,149,0.4); background: rgba(255,45,149,0.06); }
.chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(255,45,149,0.3);
}
/* ===== 条目列表区 ===== */
.browse-section {
  padding: 40px 0 30px;
  background: var(--bg);
}
.browse-grid {
  display: grid;
  grid-template-columns: 3fr 9fr;
  gap: 32px;
  align-items: start;
}
/* 筛选侧栏 */
.filter-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  position: sticky;
  top: 96px;
}
.filter-sidebar h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
}
.filter-group { margin-bottom: 26px; }
.filter-group:last-child { margin-bottom: 0; }
.filter-group-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}
.filter-option {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.83rem;
  color: var(--text-dim);
  padding: 6px 0;
  cursor: pointer;
  transition: color 0.2s ease;
}
.filter-option:hover { color: var(--text); }
.filter-option input[type="radio"] {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid #3a3454;
  border-radius: 50%;
  background: transparent;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.2s ease;
  margin: 0;
}
.filter-option input[type="radio"]:checked {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 4px var(--bg-card);
}
.filter-reset {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--cyan);
  margin-top: 18px;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}
.filter-reset:hover { border-bottom-color: var(--cyan); }
/* 移动端筛选折叠 */
.mobile-filter-toggle {
  display: none;
  margin-bottom: 20px;
  width: 100%;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: left;
}
.filter-sidebar details {
  display: none;
}
/* 结果区 */
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.result-header .result-sort {
  font-size: 0.85rem;
  color: var(--text-dim);
}
.result-header .result-sort strong { color: var(--cyan); font-size: 1rem; }
.result-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
/* 大卡 */
.result-card-large {
  display: grid;
  grid-template-columns: 5fr 7fr;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.result-card-large:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,45,149,0.2);
}
.result-card-large .card-cover {
  position: relative;
  min-height: 180px;
  overflow: hidden;
}
.result-card-large .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.result-card-large:hover .card-cover img { transform: scale(1.03); }
.card-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(255,45,149,0.35);
}
.card-main {
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.card-main h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.4;
}
.card-main h3 a:hover { color: var(--accent); }
.card-main p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 14px;
}
.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.tag {
  padding: 3px 12px;
  border: 1px solid rgba(0,229,204,0.2);
  background: rgba(0,229,204,0.06);
  color: var(--cyan);
  font-size: 0.75rem;
  border-radius: 999px;
  font-weight: 500;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.card-meta .time { color: var(--cyan); font-weight: 600; }
.view-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 22px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-btn);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  transition: all 0.2s ease;
  width: fit-content;
}
.view-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
/* 小卡 */
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.result-card-small {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}
.result-card-small:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,45,149,0.2);
}
.result-card-small .card-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.result-card-small .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.result-card-small:hover .card-cover img { transform: scale(1.04); }
.result-card-small .card-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.result-card-small h3 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}
.result-card-small h3 a:hover { color: var(--accent); }
.result-card-small .card-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.result-card-small .card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.result-card-small .time {
  font-size: 0.75rem;
  color: var(--cyan);
  font-weight: 600;
}
.result-card-small .view-mini {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 0.75rem;
  transition: all 0.2s ease;
}
.result-card-small .view-mini:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
/* ===== 分页器 ===== */
.pagination-wrap {
  display: flex;
  justify-content: center;
  padding: 50px 0 30px;
}
.pagination-custom {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}
.pagination-custom li {
  list-style: none;
  margin: 0;
}
.pagination-custom li a,
.pagination-custom li span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}
.pagination-custom li a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,45,149,0.06);
}
.pagination-custom li.current span {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(255,45,149,0.3);
}
.pagination-custom li.ellipsis span {
  border: none;
  background: transparent;
}
.pagination-custom li.arrow a {
  border-radius: 50%;
}
/* ===== FAQ ===== */
.faq-section {
  padding: 60px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.section-head {
  text-align: center;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.8vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.3px;
}
.section-head p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-top: 10px;
}
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.accordion {
  background: transparent;
  border: none;
  margin: 0;
}
.accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
}
.accordion-item:first-child {
  border-top: 1px solid var(--border);
}
.accordion-item .accordion-title {
  padding: 18px 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  border: none;
  background: transparent;
  white-space: normal;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.accordion-item .accordion-title:hover,
.accordion-item .accordion-title:focus {
  background: rgba(255,255,255,0.02);
  color: var(--accent);
}
.accordion-item.is-active .accordion-title {
  color: var(--accent);
}
.accordion-item.is-active {
  border-left: 3px solid var(--accent);
}
.accordion-item .accordion-title::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--text-dim);
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}
.accordion-item.is-active .accordion-title::after {
  transform: rotate(180deg);
  color: var(--accent);
}
.accordion-item .accordion-content {
  background: transparent;
  border: none;
  padding: 0 10px 20px;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
}
/* ===== CTA ===== */
.cta-section {
  padding: 60px 0;
  background: var(--bg);
}
.cta-panel {
  background: linear-gradient(135deg, #1C1535 0%, #2A1B4D 100%);
  border-radius: 20px;
  padding: 52px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  border: 1px solid rgba(255,255,255,0.05);
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,45,149,0.06);
  pointer-events: none;
}
.cta-panel h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 8px;
}
.cta-panel p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.cta-email {
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.9rem;
}
.cta-email:hover { text-decoration: underline; }
.cta-action {
  flex-shrink: 0;
}
/* ===== Footer ===== */
.site-footer {
  background: #0A0812;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 3fr 3fr 3fr 3fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-col .logo {
  margin-bottom: 14px;
  display: inline-flex;
}
.footer-col p {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
  font-size: 0.85rem;
}
.footer-col ul a {
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.footer-col ul a:hover { color: var(--accent); }
.footer-update li {
  display: flex;
  flex-direction: column;
  color: var(--text-dim);
}
.footer-update time {
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 2px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.04);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: #555066;
  line-height: 1.6;
}
/* ===== 响应式 ===== */
@media screen and (max-width: 75em) {
  .browse-grid { grid-template-columns: 3fr 9fr; gap: 24px; }
  .result-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 3fr 3fr 3fr 3fr; gap: 24px; }
}
@media screen and (max-width: 64em) {
  .browse-grid { grid-template-columns: 1fr; }
  .filter-sidebar {
    position: static;
    margin-bottom: 24px;
    display: none;
  }
  .filter-sidebar.open { display: block; }
  .mobile-filter-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }
  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 40px 32px;
  }
}
@media screen and (max-width: 40em) {
  .menu-toggle { display: flex; }
  .main-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(13,10,26,0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    z-index: 999;
  }
  .main-nav.open { display: block; }
  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .main-nav a {
    padding: 12px 16px;
    font-size: 1rem;
  }
  .search-input.open { max-width: 140px; }
  .hero-grid { grid-template-columns: 1fr; }
  .category-hero { padding: 100px 0 50px; min-height: auto; }
  .result-card-large {
    grid-template-columns: 1fr;
  }
  .result-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .pagination-custom li:nth-child(5),
  .pagination-custom li:nth-child(6) { display: none; }
  .browse-section { padding: 30px 0 20px; }
}