/* roulang page: index */
:root {
  --bg-dark: #060a13;
  --bg-body: #0a0f1c;
  --bg-surface: #111a2b;
  --bg-card: #141f31;
  --neon-cyan: #00e5ff;
  --neon-purple: #a855f7;
  --neon-green: #00ffa3;
  --text-primary: #eef2ff;
  --text-secondary: #94a3b8;
  --text-muted: #5a6b85;
  --border-glow: rgba(0, 229, 255, 0.16);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 30px rgba(0, 229, 255, 0.12);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --space-section: clamp(3.5rem, 7vw, 6rem);
  --transition: all .25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; outline: none; border: none; background: none; }
section { scroll-margin-top: 80px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.section-header { text-align: center; max-width: 720px; margin: 0 auto clamp(2.5rem, 5vw, 3.8rem); }
.section-eyebrow {
  display: inline-block; font-size: .82rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--neon-cyan);
  border: 1px solid var(--border-glow); border-radius: 100px;
  padding: 6px 18px; margin-bottom: 18px; background: rgba(0,229,255,.04);
}
.section-title { font-size: clamp(1.7rem, 3.5vw, 2.5rem); font-weight: 800; line-height: 1.25; letter-spacing: -.5px; }
.section-desc { font-size: 1.05rem; color: var(--text-secondary); margin-top: 14px; }
.section-divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border-glow), transparent); margin-top: 3.5rem; }

/* ---------- Header Nav ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(6, 10, 18, .86);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 229, 255, .13);
}
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.2rem; font-weight: 800; letter-spacing: .02em;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition);
}
.nav-logo i { font-size: 1.35rem; -webkit-text-fill-color: var(--neon-cyan); }
.nav-logo:hover { filter: brightness(1.2); }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-link {
  position: relative; padding: 10px 18px; font-size: .95rem; font-weight: 500;
  color: var(--text-secondary); border-radius: 100px;
  transition: var(--transition);
}
.nav-link::before {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2px; background: linear-gradient(90deg, var(--neon-cyan), transparent);
  border-radius: 2px; transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav-link:hover, .nav-link:focus { color: var(--neon-cyan); }
.nav-link:hover::before, .nav-link:focus::before { transform: scaleX(1); }
.nav-link.active { color: var(--neon-cyan); text-shadow: 0 0 16px rgba(0,229,255,.5); }
.nav-link.active::before { transform: scaleX(1); }
.nav-cta {
  margin-left: 12px; padding: 9px 22px;
  border: 1px solid var(--neon-cyan); border-radius: 100px;
  color: var(--neon-cyan); font-size: .9rem; font-weight: 600;
  transition: var(--transition);
}
.nav-cta:hover {
  background: rgba(0,229,255,.12);
  box-shadow: 0 0 24px rgba(0,229,255,.25);
  transform: translateY(-1px);
}
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 10px;
  color: var(--text-primary); font-size: 1.2rem;
  cursor: pointer; align-items: center; justify-content: center;
  border: 1px solid var(--border-glow);
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }

/* ---------- Hero ---------- */
.hero {
  position: relative; margin-top: 72px;
  min-height: 620px;
  display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.png') center 30% / cover no-repeat;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(6,10,18,.94) 0%, rgba(6,10,18,.7) 45%, rgba(6,10,18,.3) 80%, rgba(0,229,255,.08) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; padding-top: 64px; padding-bottom: 64px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,229,255,.08); border: 1px solid var(--border-glow);
  border-radius: 100px; padding: 7px 18px;
  color: var(--neon-cyan); font-size: .84rem; letter-spacing: .06em;
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900; line-height: 1.18; letter-spacing: -1px;
  text-shadow: 0 4px 30px rgba(0,0,0,.4);
}
.hero-title .grad {
  background: linear-gradient(120deg, var(--neon-cyan), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary); margin-top: 20px; max-width: 540px;
  line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; font-size: .95rem; font-weight: 600;
  border-radius: 100px; cursor: pointer;
  transition: var(--transition);
}
.btn:focus-visible { outline: 2px solid var(--neon-cyan); outline-offset: 3px; }
.btn-primary {
  background: linear-gradient(135deg, var(--neon-cyan), #00c2f0);
  color: #04151c; border: none;
  box-shadow: 0 6px 30px rgba(0,229,255,.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(0,229,255,.5);
}
.btn-outline {
  border: 1px solid rgba(255,255,255,.25); color: var(--text-primary);
  background: rgba(255,255,255,.02);
}
.btn-outline:hover {
  border-color: var(--neon-cyan); color: var(--neon-cyan);
  background: rgba(0,229,255,.06);
  transform: translateY(-2px);
}
.hero-stats { display: flex; gap: 42px; margin-top: 50px; }
.hero-stat-value {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: .82rem; color: var(--text-muted); margin-top: 2px; }

/* ---------- About ---------- */
.about { position: relative; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: center; }
.about-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); }
.about-media::after {
  content: ""; display: block; position: absolute; inset: 0;
  border: 1px solid var(--border-glow); border-radius: var(--radius-lg);
  pointer-events: none;
}
.about-media img { width: 100%; height: 100%; object-fit: cover; min-height: 340px; }
.about-badge {
  position: absolute; bottom: 20px; left: 20px;
  background: rgba(6,10,18,.75); backdrop-filter: blur(12px);
  color: var(--neon-cyan); border: 1px solid var(--border-glow);
  padding: 8px 18px; border-radius: 100px;
  font-size: .82rem; display: flex; align-items: center; gap: 8px;
}
.about-text .section-header { text-align: left; margin-bottom: 0; }
.about-features {
  display: grid; gap: 20px; margin-top: 30px;
}
.about-feature {
  display: flex; gap: 14px; align-items: flex-start;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: var(--transition);
}
.about-feature:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); translate: 4px 0; }
.about-feature i { color: var(--neon-cyan); font-size: 1.4rem; margin-top: 3px; }

/* ---------- Categories ---------- */
.categories { background: linear-gradient(180deg, var(--bg-body) 0%, rgba(17,26,43,.5) 100%); }
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.category-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-card); border: 1px solid rgba(255,255,255,.06);
  box-shadow: var(--shadow-card); transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); border-color: var(--border-glow); box-shadow: 0 20px 50px rgba(0,0,0,.5), var(--shadow-glow); }
.category-media { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.category-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-media img { transform: scale(1.05); }
.category-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(20,31,49,.92) 100%);
}
.category-content { padding: 24px 28px 30px; position: relative; margin-top: -30px; z-index: 2; }
.category-content h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 8px; }
.category-content p { color: var(--text-secondary); font-size: .95rem; line-height: 1.65; }
.category-tags { margin-top: 16px; }
.badge {
  display: inline-block; padding: 4px 14px; border-radius: 100px;
  font-size: .76rem; letter-spacing: .04em;
  border: 1px solid transparent; margin-right: 6px; margin-bottom: 6px;
}
.badge-cyan { color: var(--neon-cyan); background: rgba(0,229,255,.07); border-color: rgba(0,229,255,.2); }
.badge-purple { color: var(--neon-purple); background: rgba(168,85,247,.08); border-color: rgba(168,85,247,.2); }
.category-more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 18px; color: var(--neon-cyan); font-size: .9rem; font-weight: 500;
  transition: gap .2s ease;
}
.category-more:hover { gap: 10px; }

/* ---------- News / CMS List ---------- */
.news-area { background: rgba(9,13,24,.35); }
.news-list { display: grid; gap: 18px; }
.news-item {
  display: flex; flex-direction: column; gap: 8px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  transition: var(--transition);
}
.news-item:hover {
  border-color: var(--border-glow);
  background: rgba(0,229,255,.02);
  box-shadow: var(--shadow-glow);
}
.news-meta { display: flex; align-items: center; gap: 14px; font-size: .82rem; color: var(--text-muted); }
.news-title { font-size: 1.15rem; font-weight: 700; line-height: 1.45; }
.news-title a { transition: color .2s; }
.news-title a:hover { color: var(--neon-cyan); }
.news-excerpt { color: var(--text-secondary); font-size: .92rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-link { display: inline-flex; align-items: center; gap: 6px; color: var(--neon-cyan); font-size: .85rem; font-weight: 500; margin-top: 4px; }
.news-link:hover { gap: 10px; }
.empty-text { text-align: center; padding: 48px 20px; color: var(--text-muted); font-size: 1rem; border: 1px dashed rgba(255,255,255,.1); border-radius: var(--radius-md); }

/* ---------- Steps ---------- */
.steps { background: linear-gradient(180deg, rgba(9,13,24,.2) 0%, transparent 100%); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step-item {
  text-align: center; padding: 38px 30px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.step-item:hover { border-color: var(--border-glow); transform: translateY(-5px); box-shadow: var(--shadow-glow); }
.step-num {
  display: flex; align-items: center; justify-content: center;
  width: 64px; height: 64px; margin: 0 auto 20px;
  border-radius: 50%;
  font-size: 1.1rem; font-weight: 800;
  background: linear-gradient(135deg, rgba(0,229,255,.12), rgba(168,85,247,.1));
  border: 1px solid var(--border-glow);
  color: var(--neon-cyan);
}
.step-item h3 { font-size: 1.2rem; margin-bottom: 10px; }
.step-item p { color: var(--text-secondary); font-size: .92rem; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-glow); }
.faq-item summary {
  cursor: pointer; padding: 20px 26px;
  font-weight: 600; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; list-style: none; color: var(--text-primary);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 1.5rem; font-weight: 400;
  color: var(--neon-cyan); transition: transform .3s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .answer { padding: 0 26px 22px; color: var(--text-secondary); font-size: .95rem; line-height: 1.7; }

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: clamp(4rem, 8vw, 7rem) 0;
  text-align: center;
}
.cta-section::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(6,10,18,.9), rgba(6,10,18,.72), rgba(6,10,18,.9));
}
.cta-content { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-content h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.25; }
.cta-content p { color: var(--text-secondary); margin: 18px 0 32px; font-size: 1.05rem; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(0,229,255,.1);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px; margin-bottom: 44px;
}
.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-brand .nav-logo { font-size: 1.4rem; }
.footer-brand p { color: var(--text-secondary); font-size: .9rem; line-height: 1.6; max-width: 320px; }
.footer-col h4 { color: var(--text-primary); font-size: .9rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { color: var(--text-secondary); font-size: .9rem; transition: var(--transition); }
.footer-col a:hover { color: var(--neon-cyan); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0 0;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
  color: var(--text-muted); font-size: .8rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 640px; }
  .category-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute; top: 72px; left: 24px; right: 24px;
    background: rgba(6,10,18,.96); border: 1px solid var(--border-glow);
    border-radius: var(--radius-md); padding: 16px;
    flex-direction: column; align-items: stretch;
    backdrop-filter: blur(20px); box-shadow: var(--shadow-card);
  }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .nav-link::before { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { margin-left: 0; text-align: center; }
  .hero { min-height: 540px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 360px; }
}

@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero { margin-top: 60px; min-height: 480px; }
  .nav-logo { font-size: 1.05rem; }
  .nav-logo i { font-size: 1.1rem; }
  .hero-title { font-size: 2.2rem; }
  .hero-stats { gap: 18px; }
  .hero-stat-value { font-size: 1.5rem; }
  .section-header { margin-bottom: 2rem; }
  .news-item { padding: 18px 18px; }
  .category-content { padding: 18px 20px 24px; }
  .step-item { padding: 26px 20px; }
}

/* roulang page: category1 */
:root {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark: #5b21b6;
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.55);
  --neon: #22d3ee;
  --bg-dark: #0b0f1a;
  --bg-deep: #060a13;
  --bg-card: rgba(17, 24, 39, 0.8);
  --bg-elevated: #151f31;
  --text-main: #e7eaf3;
  --text-weak: #9aa4b8;
  --text-strong: #ffffff;
  --border: rgba(124, 58, 237, 0.25);
  --border-soft: rgba(30, 41, 59, 0.8);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-main: 0 20px 50px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;
  --space-section: 110px;
  --space-section-md: 70px;
  --font-display: "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "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-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-dark);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(124, 58, 237, 0.1) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
  z-index: 0;
  pointer-events: none;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: min(1280px, 92%);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* 导航 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(6, 10, 19, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.header::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
  opacity: 0.6;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--text-strong);
  letter-spacing: 0.5px;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-logo i {
  color: var(--accent);
  font-size: 26px;
  filter: drop-shadow(0 0 8px var(--accent-glow));
  transition: var(--transition);
}

.nav-logo:hover i {
  transform: rotate(-12deg) scale(1.1);
  color: var(--primary-light);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-menu .nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-weak);
  padding: 8px 2px;
  transition: var(--transition);
}

.nav-menu .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.nav-menu .nav-link::before {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--accent);
  filter: blur(8px);
  opacity: 0;
  transition: var(--transition);
}

.nav-menu .nav-link:hover,
.nav-menu .nav-link.active {
  color: var(--text-strong);
}

.nav-menu .nav-link:hover::after,
.nav-menu .nav-link.active::after {
  transform: scaleX(1);
}

.nav-menu .nav-link.active::before {
  opacity: 0.5;
}

.nav-link.active {
  color: var(--text-strong);
  text-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.4);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nav-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: var(--transition);
}

.nav-cta:hover::before {
  transform: translateX(100%);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.6);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 20px;
  transition: var(--transition);
}

.nav-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 14px rgba(6, 182, 212, 0.3);
}

/* Hero */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 90px) 0 100px;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  isolation: isolate;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 10, 19, 0.92) 0%, rgba(91, 33, 182, 0.55) 55%, rgba(6, 182, 212, 0.35) 100%);
  z-index: -1;
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  background: linear-gradient(to top, var(--bg-dark), transparent);
  z-index: 0;
}

.page-hero .hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.page-hero .hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border-radius: 40px;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--text-strong);
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.page-hero .hero-tagline i {
  color: var(--neon);
}

.page-hero h1 {
  font-size: clamp(32px, 5.6vw, 62px);
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-strong);
  margin-bottom: 20px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.page-hero h1 span {
  background: linear-gradient(135deg, var(--neon), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero p {
  font-size: 17px;
  color: rgba(231, 234, 243, 0.85);
  margin-bottom: 30px;
  max-width: 620px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-bar {
  margin-top: 70px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-weak);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-soft);
  transition: var(--transition);
}

.filter-chip i {
  font-size: 13px;
  color: var(--accent);
}

.filter-chip:hover,
.filter-chip.active {
  color: var(--text-strong);
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.25);
  transform: translateY(-2px);
}

/* 通用板块 */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-tight {
  padding: 60px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 50px;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  color: var(--text-strong);
  line-height: 1.3;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

.section-title .dot {
  color: var(--accent);
  margin-right: 6px;
  text-shadow: 0 0 12px var(--accent-glow);
}

.section-sub {
  color: var(--text-weak);
  font-size: 14px;
  margin-top: 14px;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
  white-space: nowrap;
}

.more-link:hover {
  gap: 14px;
  color: var(--primary-light);
}

/* 阅读时间条 */
.reading-bar {
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  padding: 14px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.reading-bar .rb-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reading-bar .rb-left i {
  color: var(--accent);
  font-size: 18px;
}

.reading-bar .rb-left span {
  color: var(--text-main);
  font-size: 14px;
}

.reading-bar .rb-stats {
  display: flex;
  align-items: center;
  gap: 30px;
}

.reading-bar .rb-stats span {
  color: var(--text-main);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.reading-bar .rb-stats i {
  color: var(--primary-light);
}

/* 新闻卡片 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.news-grid .feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.news-grid .feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-card), 0 0 30px rgba(124, 58, 237, 0.25);
}

.news-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.news-thumb {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-card:hover .news-thumb img {
  transform: scale(1.05);
}

.news-thumb::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.8), transparent);
}

.thumb-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 3;
  padding: 6px 16px;
  border-radius: 40px;
  font-size: 12px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.45);
  letter-spacing: 0.5px;
}

.thumb-hot {
  background: linear-gradient(135deg, #ef4444, #f97316) !important;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.4) !important;
}

.thumb-new {
  background: linear-gradient(135deg, var(--accent), #0284c7) !important;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4) !important;
}

.news-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  flex: 1;
}

.news-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-strong);
  line-height: 1.4;
  transition: var(--transition);
  font-family: var(--font-body);
}

.feature-card:hover .news-title {
  color: var(--accent);
}

.news-excerpt {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.news-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 6px;
  background: rgba(124, 58, 237, 0.12);
  color: var(--primary-light);
  font-size: 13px;
  transition: var(--transition);
}

.news-tag:hover {
  background: rgba(124, 58, 237, 0.25);
  color: var(--text-strong);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.news-meta span {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-meta span i {
  color: var(--primary-light);
  font-size: 12px;
}

/* 新闻列表 */
.rank-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.rank-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--border-soft);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.rank-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.rank-card:hover::before {
  transform: scaleX(1);
}

.rank-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.rank-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 400;
  color: var(--accent);
  margin-bottom: 12px;
  opacity: 0.6;
  line-height: 1;
  text-shadow: 0 0 18px rgba(6, 182, 212, 0.4);
}

.rank-card h3 {
  font-size: 20px;
  color: var(--text-strong);
  margin-bottom: 10px;
  font-weight: 700;
}

.rank-card p {
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 20px;
  line-height: 1.7;
}

.rank-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary-light);
  border-radius: 40px;
  font-size: 12px;
  font-weight: 600;
}

/* 轮播区 */
.ticker-wrap {
  background: var(--bg-elevated);
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  padding: 18px 24px;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 20px;
  overflow: visible;
  position: relative;
}

.ticker-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 8px 18px;
  border-radius: 10px;
  font-weight: 600;
  height: 40px;
  white-space: nowrap;
}

.ticker-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.ticker-list {
  display: flex;
  gap: 32px;
  animation: ticker 28s linear infinite;
  white-space: nowrap;
}

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

.ticker-list a:hover {
  color: var(--accent);
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-100% + 200px)); }
}

/* 快速浏览 */
.summary-grid {
  display: grid;
  grid-template-columns: 4fr 2.5fr;
  gap: 30px;
  align-items: start;
}

.summary-block {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border-soft);
}

.summary-block h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-strong);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

.summary-block h2 i {
  color: var(--accent);
}

.summary-block p {
  font-size: 15px;
  color: var(--text-main);
  margin-bottom: 16px;
}

.summary-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.summary-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-main);
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  border-left: 3px solid var(--primary);
  transition: var(--transition);
}

.summary-list li:hover {
  background: rgba(124, 58, 237, 0.08);
  border-left-color: var(--accent);
  transform: translateX(4px);
}

.summary-list i {
  color: var(--accent);
  margin-top: 5px;
  font-size: 14px;
}

.quick-card {
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.28), rgba(6, 182, 212, 0.2));
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid rgba(124, 58, 237, 0.3);
  backdrop-filter: blur(8px);
}

.quick-card h3 {
  color: var(--text-strong);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
  font-family: var(--font-display);
}

.quick-card p {
  color: rgba(231, 234, 243, 0.8);
  font-size: 14px;
  margin-bottom: 22px;
}

.quick-card ul {
  margin-bottom: 22px;
}

.quick-card ul li {
  color: var(--text-main);
  font-size: 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.quick-card ul li i {
  color: var(--neon);
  font-size: 12px;
  min-width: 14px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 14px;
  transition: var(--transition);
  border: 1px solid transparent;
  width: fit-content;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 22px rgba(124, 58, 237, 0.45);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.65);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-strong);
  border-color: rgba(124, 58, 237, 0.5);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.2);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
}

.btn-light:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(167, 139, 250, 0.5);
}

/* 玩家热评 */
.comment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.comment-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid var(--border-soft);
  transition: var(--transition);
}

.comment-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.comment-avatar {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 18px;
  border: 2px solid var(--primary);
  padding: 3px;
}

.comment-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--bg-dark);
}

.comment-text {
  font-size: 15px;
  color: var(--text-main);
  line-height: 1.9;
  margin-bottom: 20px;
  font-style: italic;
}

.comment-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.comment-author strong {
  color: var(--text-strong);
  font-size: 15px;
}

.comment-author span {
  color: var(--primary-light);
  font-size: 12px;
  background: rgba(124, 58, 237, 0.1);
  padding: 4px 10px;
  border-radius: 30px;
}

/* FAQ */
.faq-section {
  background: var(--bg-deep);
  position: relative;
}

.faq-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-3.png");
  background-size: cover;
  background-position: center;
  opacity: 0.04;
}

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

.faq-item {
  background: var(--bg-card);
  border-radius: 16px;
  margin-bottom: 16px;
  border: 1px solid var(--border-soft);
  transition: var(--transition);
  overflow: hidden;
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-question {
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--text-strong);
  font-weight: 600;
  font-size: 16px;
  transition: var(--transition);
}

.faq-question i {
  color: var(--accent);
  transition: var(--transition);
  font-size: 14px;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  padding: 0 26px 22px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.9;
}

/* CTA */
.cta-box {
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.3), rgba(6, 182, 212, 0.15));
  border-radius: 26px;
  padding: 60px 50px;
  text-align: center;
  border: 1px solid rgba(124, 58, 237, 0.4);
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 60%);
  animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.cta-box h2 {
  font-size: clamp(24px, 3.4vw, 38px);
  color: var(--text-strong);
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 1px;
}

.cta-box p {
  color: var(--text-main);
  margin-bottom: 32px;
  font-size: 16px;
}

.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 页脚 */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
  margin-top: 80px;
}

.footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
  opacity: 0.5;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding: 70px 0 40px;
}

.footer-brand p {
  color: var(--text-weak);
  font-size: 14px;
  margin-top: 16px;
  max-width: 360px;
  line-height: 1.9;
}

.footer-col h4 {
  color: var(--text-strong);
  font-size: 17px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-weak);
  font-size: 14px;
  transition: var(--transition);
  display: inline-block;
}

.footer-col ul li a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
  gap: 10px;
}

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

@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .rank-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .summary-grid {
    grid-template-columns: 1fr;
  }
  
  .comment-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .nav-menu {
    gap: 20px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    width: 94%;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: rgba(6, 10, 19, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 30px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-menu .nav-link {
    font-size: 16px;
    padding: 10px 0;
    width: 100%;
    text-align: center;
  }
  
  .nav-cta {
    width: 100%;
    justify-content: center;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .page-hero {
    background-attachment: scroll;
  }
  
  .section {
    --space-section: 70px;
  }
  
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .reading-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .reading-bar .rb-stats {
    width: 100%;
    overflow-x: auto;
    gap: 16px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 50px 0 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
  
  .cta-box {
    padding: 40px 24px;
  }
  
  .summary-block {
    padding: 28px 22px;
  }
  
  .rank-grid {
    grid-template-columns: 1fr;
  }
  
  .news-body {
    padding: 20px;
  }
}

@media (max-width: 520px) {
  :root {
    --header-h: 62px;
  }
  
  .nav-logo {
    font-size: 18px;
  }
  
  .nav-logo i {
    font-size: 20px;
  }
  
  .page-hero {
    padding-top: calc(var(--header-h) + 50px);
    padding-bottom: 60px;
  }
  
  .page-hero h1 {
    font-size: 30px;
  }
  
  .page-hero p {
    font-size: 15px;
  }
  
  .hero-btns .btn {
    width: 100%;
  }
  
  .filter-bar {
    gap: 8px;
  }
  
  .filter-chip {
    padding: 8px 14px;
    font-size: 13px;
  }
  
  .ticker-wrap {
    flex-direction: column;
    align-items: stretch;
  }
  
  .ticker-label {
    justify-content: center;
  }
  
  .ticker-list a {
    font-size: 13px;
  }
  
  .news-title {
    font-size: 18px;
  }
  
  .rank-card {
    padding: 24px;
  }
  
  .news-thumb {
    height: 190px;
  }
  
  .comment-card {
    padding: 22px;
  }
  
  .cta-btns .btn {
    width: 100%;
  }
}

@media (min-width: 1400px) {
  .container {
    width: 1280px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (hover: hover) {
  .nav-logo:hover,
  .nav-menu .nav-link:hover,
  .more-link:hover {
    text-decoration: none;
  }
}

/* roulang page: article */
:root {
  --bg: #0b0f1a;
  --bg-soft: #101827;
  --card: #131c2e;
  --card-hover: #18233a;
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 229, 255, 0.35);
  --text: #e9edf5;
  --text-weak: #8a94a8;
  --primary: #00e5ff;
  --accent: #ff3d81;
  --success: #22d39a;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(0, 229, 255, 0.15);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans SC", sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
}
input, textarea {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: 1210px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 96px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 52px;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--primary);
  border: 1px solid var(--border-glow);
  padding: 6px 18px;
  border-radius: 40px;
  background: rgba(0, 229, 255, 0.06);
  box-shadow: var(--shadow-glow);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
}
.section-head p {
  color: var(--text-weak);
  margin-top: 10px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #06121a;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 50px;
  border: 1px solid transparent;
  box-shadow: 0 8px 28px rgba(0, 229, 255, 0.25);
  transition: all 0.3s ease;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(0, 229, 255, 0.4);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 30px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.3s ease;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-glow);
}
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 15, 26, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 20px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text);
  white-space: nowrap;
}
.nav-logo i {
  color: var(--primary);
  font-size: 22px;
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.6));
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-weak);
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
}
.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}
.nav-link.active {
  color: var(--primary);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.75);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
  padding: 10px 22px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 700;
  color: #06121a;
  background: linear-gradient(135deg, #00e5ff 0%, #00b3c6 100%);
  box-shadow: 0 4px 18px rgba(0, 229, 255, 0.3);
  transition: all 0.3s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(0, 229, 255, 0.45);
}
.nav-toggle {
  display: none;
  background: transparent;
  color: var(--text);
  font-size: 22px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}
.article-hero {
  position: relative;
  padding: 104px 0 84px;
  background: linear-gradient(135deg, rgba(11, 15, 26, 0.94) 0%, rgba(11, 15, 26, 0.72) 55%, rgba(11, 15, 26, 0.86) 100%), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, var(--bg) 100%);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 30px;
}
.breadcrumb a {
  color: var(--text-weak);
  transition: color 0.25s;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb i {
  font-size: 10px;
  color: var(--text-weak);
  opacity: 0.6;
}
.article-hero h1 {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -1px;
  max-width: 860px;
  margin-bottom: 24px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: var(--text-weak);
}
.article-meta .meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 16px;
  border-radius: 40px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-body-section {
  padding: 72px 0 56px;
}
.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 48px;
  align-items: start;
}
.article-main {
  min-width: 0;
}
.article-content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 46px;
  box-shadow: var(--shadow);
}
.article-content p {
  margin-bottom: 1.6em;
  font-size: 16px;
  line-height: 1.9;
  color: #d2d9e6;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 2.2em 0 1em;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  color: var(--text);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 2em 0 0.9em;
  color: var(--text);
}
.article-content h4 {
  font-size: 17px;
  font-weight: 700;
  margin: 1.6em 0 0.7em;
  color: var(--text);
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.6em 1.2em;
  padding-left: 0.6em;
}
.article-content ul li,
.article-content ol li {
  margin-bottom: 0.6em;
  padding-left: 6px;
  color: #c6cfdd;
  line-height: 1.85;
}
.article-content ul li::marker {
  color: var(--primary);
}
.article-content ol li::marker {
  color: var(--primary);
  font-weight: 700;
}
.article-content img {
  border-radius: 12px;
  margin: 1.8em 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}
.article-content blockquote {
  margin: 1.8em 0;
  padding: 22px 24px;
  border-radius: 12px;
  background: rgba(0, 229, 255, 0.05);
  border-left: 4px solid var(--primary);
  color: #aab6c8;
  font-style: italic;
}
.article-content a {
  color: var(--primary);
  border-bottom: 1px solid transparent;
}
.article-content a:hover {
  border-bottom-color: var(--primary);
}
.article-content strong {
  color: var(--text);
  font-weight: 700;
}
.article-content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 2em 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  border-radius: 10px;
  overflow: hidden;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
}
.article-content table th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-weight: 700;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
}
.article-tags span {
  color: var(--text-weak);
  font-size: 14px;
}
.article-tags .tag {
  display: inline-block;
  padding: 5px 14px;
  font-size: 13px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-weak);
  transition: all 0.25s;
}
.article-tags .tag:hover {
  color: var(--primary);
  border-color: var(--border-glow);
}
.article-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.sidebar-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}
.sidebar-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i {
  color: var(--primary);
}
.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sidebar-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding: 9px 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  transition: all 0.25s;
}
.sidebar-list li:hover {
  background: rgba(0, 229, 255, 0.06);
  border-color: var(--border-glow);
}
.sidebar-list li span {
  color: var(--text-weak);
  font-size: 13px;
}
.sidebar-rec {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  transition: gap 0.25s;
}
.sidebar-rec:last-child {
  border-bottom: none;
}
.sidebar-rec:hover {
  gap: 18px;
}
.sidebar-rec img {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}
.sidebar-rec .rec-info {
  min-width: 0;
}
.sidebar-rec .rec-info strong {
  display: block;
  font-size: 14px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}
.sidebar-rec .rec-info span {
  font-size: 12px;
  color: var(--text-weak);
}
.related-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 88px 0;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.related-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), var(--shadow-glow);
}
.related-card .related-img {
  height: 180px;
  overflow: hidden;
  position: relative;
}
.related-card .related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-img img {
  transform: scale(1.06);
}
.related-card .related-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(11, 15, 26, 0.75) 100%);
}
.related-card .related-body {
  padding: 22px 24px 26px;
}
.related-card .related-body h3 {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .related-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .related-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-weak);
}
.related-card .related-meta i {
  color: var(--primary);
  font-size: 12px;
}
.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, rgba(255, 61, 129, 0.06) 100%), var(--bg);
  text-align: center;
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
}
.cta-box h2 {
  font-size: 38px;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 18px;
}
.cta-box p {
  color: var(--text-weak);
  font-size: 16px;
  margin-bottom: 34px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.not-found-section {
  padding: 160px 0 140px;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.not-found-card {
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 60px 48px;
  max-width: 560px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.not-found-card i {
  font-size: 48px;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
  filter: drop-shadow(0 0 16px rgba(255, 61, 129, 0.35));
}
.not-found-card h1 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 14px;
}
.not-found-card p {
  color: var(--text-weak);
  margin-bottom: 30px;
}
.footer {
  background: #080b13;
  border-top: 1px solid var(--border);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-top: 16px;
  max-width: 340px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col ul a {
  font-size: 14px;
  color: var(--text-weak);
  transition: color 0.25s;
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-weak);
}
.footer-bottom .spacing-right {
  color: var(--text-weak);
}
@media (max-width: 1024px) {
  .article-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .article-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-card {
    flex: 1 1 260px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 820px) {
  .section {
    padding: 72px 0;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 15, 26, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    display: none;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5);
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-link, .nav-cta {
    padding: 14px 20px;
    border-radius: 10px;
  }
  .nav-link.active::after {
    left: 20px;
    right: auto;
    width: 32px;
  }
  .nav-cta {
    margin-left: 0;
    justify-content: center;
  }
  .article-hero h1 {
    font-size: 32px;
  }
  .article-content {
    padding: 30px 24px;
  }
}
@media (max-width: 600px) {
  .container {
    padding: 0 18px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .article-hero {
    padding: 80px 0 64px;
  }
  .article-hero h1 {
    font-size: 27px;
  }
  .article-meta {
    gap: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .cta-box h2 {
    font-size: 28px;
  }
  .not-found-card {
    padding: 40px 24px;
  }
  .article-content h2 {
    font-size: 22px;
  }
  .article-content h3 {
    font-size: 18px;
  }
}

/* roulang page: category2 */
:root {
  --bg-deep: #070b14;
  --bg-body: #0a0f1a;
  --bg-secondary: #0d1424;
  --bg-card: #121a2b;
  --bg-card-hover: #161f35;
  --border: #1f2b44;
  --neon-blue: #00d4ff;
  --neon-purple: #8b5cf6;
  --neon-pink: #ff4ecd;
  --neon-green: #00ffb2;
  --text-primary: #eef4ff;
  --text-secondary: #8fa3c0;
  --text-muted: #5f7290;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.25);
  --transition: 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button,
input {
  font-family: inherit;
}

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

.section {
  padding: 96px 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--neon-blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  color: #fff;
  box-shadow: 0 4px 18px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.45);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(31, 43, 68, 0.7);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.nav-logo i {
  color: var(--neon-blue);
  font-size: 22px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--neon-blue);
  background: rgba(0, 212, 255, 0.08);
}

.nav-link.active {
  color: var(--neon-blue);
  background: rgba(0, 212, 255, 0.12);
  box-shadow: inset 0 -2px 0 var(--neon-blue), 0 0 14px rgba(0, 212, 255, 0.18);
}

.nav-cta {
  margin-left: 10px;
  padding: 9px 18px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.nav-cta:hover {
  box-shadow: 0 0 22px rgba(0, 212, 255, 0.4);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 6px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 140px 0 120px;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 11, 20, 0.72) 0%, rgba(7, 11, 20, 0.88) 60%, var(--bg-body) 100%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple), transparent);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--neon-blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -1px;
  text-shadow: 0 0 36px rgba(0, 212, 255, 0.35);
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: 18px;
  color: rgba(238, 244, 255, 0.78);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 5px 5px 5px 18px;
  max-width: 520px;
  transition: all var(--transition);
}

.hero-search:focus-within {
  border-color: var(--neon-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
  background: rgba(255, 255, 255, 0.09);
}

.hero-search i {
  color: var(--text-secondary);
  font-size: 14px;
}

.hero-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 15px;
  padding: 8px 12px;
}

.hero-search input::placeholder {
  color: var(--text-muted);
}

.hero-search button {
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  border: none;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
}

.hero-search button:hover {
  box-shadow: 0 0 18px rgba(0, 212, 255, 0.4);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 5px 14px;
  transition: all var(--transition);
}

.hero-tag:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
}

/* ===== Category Cards ===== */
.category-section {
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(31, 43, 68, 0.5);
}

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

.category-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all var(--transition);
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  opacity: 0;
  transition: opacity var(--transition);
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: var(--shadow-card);
}

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

.category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(139, 92, 246, 0.15));
  color: var(--neon-blue);
  font-size: 22px;
  margin-bottom: 18px;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Guides ===== */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 212, 255, 0.12);
}

.guide-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.guide-card:hover .guide-cover img {
  transform: scale(1.05);
}

.guide-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(7, 11, 20, 0.5) 100%);
}

.guide-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.guide-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.22);
  color: var(--neon-blue);
  font-size: 13px;
  font-weight: 600;
}

.guide-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--text-muted);
}

.guide-meta span i {
  font-size: 12px;
}

.guide-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.guide-card:hover .guide-title {
  color: var(--neon-blue);
}

.guide-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.guide-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--neon-blue);
  transition: gap var(--transition);
}

.guide-link:hover {
  gap: 10px;
}

/* ===== Steps ===== */
.steps-section {
  background: var(--bg-deep);
  position: relative;
}

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

.step-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  transition: all var(--transition);
}

.step-item:hover {
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: 0 0 28px rgba(0, 212, 255, 0.1);
  transform: translateY(-4px);
}

.step-num {
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.step-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Ranking ===== */
.ranking-section {
  background: var(--bg-secondary);
}

.ranking-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: all var(--transition);
}

.ranking-item:hover {
  border-color: rgba(0, 212, 255, 0.35);
  transform: translateX(6px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.3);
}

.ranking-num {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.ranking-item:nth-child(1) .ranking-num,
.ranking-item:nth-child(2) .ranking-num,
.ranking-item:nth-child(3) .ranking-num {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  color: #fff;
  box-shadow: 0 0 14px rgba(0, 212, 255, 0.35);
}

.ranking-info {
  flex: 1;
  min-width: 0;
}

.ranking-info h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ranking-info .ranking-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

.ranking-tag {
  display: inline-flex;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.08);
  color: var(--neon-blue);
  font-size: 12px;
}

.ranking-views {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

.ranking-hot {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--neon-pink), rgba(255, 78, 205, 0.2));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

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

.ranking-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.2), transparent 70%);
}

.ranking-banner h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

.ranking-banner p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.ranking-banner .btn {
  position: relative;
  z-index: 1;
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

.testimonial-card .stars {
  color: #fbbf24;
  font-size: 14px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.testimonial-author .name {
  font-size: 14px;
  font-weight: 600;
}

.testimonial-author .meta {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-secondary);
}

.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  transition: all var(--transition);
}

.faq-item summary {
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  transition: all var(--transition);
}

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

.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary {
  color: var(--neon-blue);
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
  color: var(--neon-blue);
}

.faq-item p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7, 11, 20, 0.92), rgba(10, 15, 26, 0.82));
}

.cta-box {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  background: rgba(18, 26, 43, 0.65);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 28px;
  padding: 56px 40px;
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(31, 43, 68, 0.6);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-left: 14px;
}

.footer-col h4::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--neon-blue), var(--neon-purple));
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.footer-col ul a:hover {
  color: var(--neon-blue);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(31, 43, 68, 0.5);
  font-size: 14px;
  color: var(--text-muted);
}

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

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

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

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

  .hero-title {
    font-size: 44px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(7, 11, 20, 0.97);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 10px;
    border-bottom: 1px solid var(--border);
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: 12px 16px;
  }

  .nav-cta {
    margin-left: 0;
    width: 100%;
    justify-content: center;
    margin-top: 6px;
  }

  .hero {
    padding: 100px 0 80px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

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

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

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

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

  .cta-box {
    padding: 40px 24px;
    border-radius: 20px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 24px;
  }

  .hero {
    padding: 84px 0 64px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-search {
    flex-direction: column;
    border-radius: 18px;
    padding: 12px;
    gap: 10px;
    align-items: stretch;
  }

  .hero-search button {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
  }

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

  .category-card {
    padding: 26px 22px;
  }

  .ranking-item {
    padding: 14px;
    gap: 12px;
  }

  .ranking-info h3 {
    font-size: 14px;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .ranking-hot {
    display: none;
  }

  .faq-item summary {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-item p {
    padding: 0 18px 16px;
    font-size: 14px;
  }

  .cta-box {
    padding: 32px 20px;
  }

  .cta-box h2 {
    font-size: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
  }
}