/* roulang page: index */
:root {
  --primary: #E6396B;
  --primary-hover: #FF5C8A;
  --accent: #7A3BFF;
  --gold: #C9A96A;
  --bg-base: #0B0B0F;
  --bg-panel: #14141A;
  --bg-card: #1B1B23;
  --text-title: #F2F2F6;
  --text-body: #A9A9B2;
  --text-weak: #7A7A85;
  --border: rgba(255,255,255,0.08);
  --border-primary: rgba(230,57,107,0.4);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-icon: 9px;
  --shadow-card: 0 20px 50px rgba(0,0,0,0.4);
  --transition: all 0.3s ease;
  --container-w: 1200px;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  background: var(--bg-base);
  color: var(--text-body);
  line-height: 1.75;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-hover); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; color: var(--text-title); background: var(--bg-base); border: 1px solid var(--border); border-radius: var(--radius-btn); padding: 14px 16px; width: 100%; transition: border 0.3s ease, box-shadow 0.3s ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,57,107,0.15); }
label { font-size: 0.875rem; color: var(--text-weak); display: block; margin-bottom: 6px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(64px, 8vw, 112px) 0; }
.section-header { margin-bottom: 48px; }
.section-header .section-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; color: var(--primary); background: rgba(230,57,107,0.12); border: 1px solid rgba(230,57,107,0.25); padding: 6px 16px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase; }
.section-header h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; color: var(--text-title); letter-spacing: 0.015em; margin-bottom: 12px; }
.section-header p { font-size: 1rem; color: var(--text-body); max-width: 640px; line-height: 1.75; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; font-size: 1rem; font-weight: 600; border-radius: var(--radius-btn); transition: all 0.3s ease; line-height: 1.4; letter-spacing: 0.02em; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,107,0.35); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:focus-visible, .btn-outline:focus-visible, .nav-cta:focus-visible, .nav-toggle:focus-visible, .faq-item button:focus-visible, .form-submit:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-outline { background: transparent; color: var(--text-title); border: 1px solid rgba(255,255,255,0.35); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-outline:active { transform: scale(0.98); }
.btn-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--primary); padding: 0; background: none; }
.btn-link i { transition: transform 0.3s ease; }
.btn-link:hover i { transform: translateX(4px); }
.btn-link:hover { color: var(--primary-hover); }

/* Header Navigation */
.site-header { background: var(--bg-panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.nav-container { display: flex; align-items: center; gap: 20px; padding: 12px 24px; max-width: var(--container-w); margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--primary), #B8255A); border-radius: 9px; display: flex; align-items: center; justify-content: center; position: relative; }
.logo-icon svg { width: 18px; height: 18px; fill: #fff; }
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--text-title); letter-spacing: 0.03em; }
.nav-links { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.nav-item { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 12px; background: #1B1B23; border: 1px solid var(--border); color: var(--text-body); font-size: 0.875rem; font-weight: 500; transition: var(--transition); }
.nav-item i { font-size: 0.9rem; color: var(--text-weak); transition: var(--transition); }
.nav-item:hover { background: #24242D; color: var(--primary); border-color: rgba(230,57,107,0.3); }
.nav-item:hover i { color: var(--primary); }
.nav-item.active { background: rgba(230,57,107,0.15); color: var(--primary); border-color: rgba(230,57,107,0.4); }
.nav-item.active i { color: var(--primary); }
.nav-cta { padding: 10px 22px; font-size: 0.875rem; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: #1B1B23; border: 1px solid var(--border); align-items: center; justify-content: center; color: var(--text-body); }
.nav-toggle:hover { color: var(--primary); border-color: rgba(230,57,107,0.3); }
.nav-toggle svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; }
@media (max-width: 1024px) {
  .nav-links { position: fixed; top: 60px; left: 0; right: 0; background: var(--bg-panel); flex-direction: column; align-items: stretch; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); gap: 12px; transform: translateY(-120%); transition: transform 0.35s ease; display: flex; z-index: 999; }
  .nav-links.open { transform: translateY(0); }
  .nav-item { justify-content: center; }
  .nav-toggle { display: flex; }
  .nav-cta { margin-left: auto; }
}

/* Hero */
.hero { position: relative; background: var(--bg-base); overflow: hidden; padding-top: 40px; }
.hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat; opacity: 0.2; pointer-events: none; }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,11,15,0.85) 0%, var(--bg-base) 100%); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; padding-bottom: 64px; }
.hero-content .hero-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; color: var(--gold); background: rgba(201,169,106,0.1); border: 1px solid rgba(201,169,106,0.3); padding: 6px 16px; border-radius: 999px; margin-bottom: 24px; }
.hero-content h1 { font-size: clamp(2.5rem, 5vw, 4.2rem); font-weight: 800; line-height: 1.05; color: var(--text-title); letter-spacing: 0.01em; margin-bottom: 20px; }
.hero-content .hero-subtitle { font-size: 1.125rem; color: var(--text-body); line-height: 1.75; max-width: 540px; margin-bottom: 36px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 20px; font-size: 0.8125rem; color: var(--text-weak); }
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust svg { width: 14px; height: 14px; fill: var(--gold); }
.hero-visual { position: relative; }
.hero-cover { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--border); box-shadow: 0 30px 80px rgba(0,0,0,0.6); }
.hero-cover img { width: 100%; height: 100%; object-fit: cover; }
.hero-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(200deg, rgba(230,57,107,0.15) 0%, rgba(0,0,0,0.3) 60%, rgba(11,11,15,0.6) 100%); }
.hero-cover-badge { position: absolute; bottom: 20px; left: 20px; z-index: 3; background: rgba(11,11,15,0.8); backdrop-filter: blur(10px); border: 1px solid rgba(201,169,106,0.3); color: var(--gold); font-size: 0.75rem; padding: 8px 16px; border-radius: 999px; display: flex; align-items: center; gap: 6px; }

/* Metrics */
.metrics-section { position: relative; z-index: 2; padding-bottom: clamp(64px, 8vw, 112px); }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.metric-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px 24px; text-align: center; transition: var(--transition); }
.metric-card:hover { transform: translateY(-4px); border-color: rgba(230,57,107,0.3); box-shadow: var(--shadow-card); }
.metric-number { font-size: 2.25rem; font-weight: 800; color: var(--text-title); display: block; line-height: 1.1; letter-spacing: -0.02em; }
.metric-number em { font-style: normal; color: var(--primary); }
.metric-label { font-size: 0.875rem; color: var(--text-weak); display: block; margin-top: 8px; letter-spacing: 0.04em; }
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .metric-card { padding: 20px 16px; }
  .metric-number { font-size: 1.75rem; }
}

/* Three Pillars */
.pillars-section { background: var(--bg-base); position: relative; }
.pillars-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
.pillar-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 36px 28px; transition: var(--transition); position: relative; overflow: hidden; }
.pillar-card:nth-child(2) { background: linear-gradient(145deg, #1B1B23 0%, #1E1E28 100%); border-color: rgba(230,57,107,0.2); }
.pillar-card:nth-child(2)::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--primary), transparent); }
.pillar-card:hover { transform: translateY(-6px); border-color: rgba(230,57,107,0.4); box-shadow: var(--shadow-card); }
.pillar-icon { width: 48px; height: 48px; border-radius: var(--radius-icon); background: rgba(230,57,107,0.12); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--primary); }
.pillar-icon svg { width: 22px; height: 22px; fill: currentColor; }
.pillar-card h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-title); margin-bottom: 10px; letter-spacing: 0.02em; }
.pillar-card p { font-size: 0.875rem; color: var(--text-body); line-height: 1.7; }
.pillar-card .pillar-tag { display: inline-block; margin-top: 16px; font-size: 0.75rem; font-weight: 600; color: var(--gold); background: rgba(201,169,106,0.1); border: 1px solid rgba(201,169,106,0.25); padding: 4px 12px; border-radius: 999px; }
@media (max-width: 768px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* Services Matrix */
.services-section { background: var(--bg-base); position: relative; border-top: 1px solid var(--border); }
.services-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: center; }
.services-intro .section-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; color: var(--primary); background: rgba(230,57,107,0.12); border: 1px solid rgba(230,57,107,0.25); padding: 6px 16px; border-radius: 999px; margin-bottom: 16px; }
.services-intro h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; color: var(--text-title); margin-bottom: 16px; letter-spacing: 0.015em; }
.services-intro p { font-size: 1rem; color: var(--text-body); line-height: 1.75; margin-bottom: 24px; }
.services-intro .btn-link { font-size: 0.9375rem; }
.services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.service-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px 24px; transition: var(--transition); }
.service-card:hover { transform: translateY(-6px); border-color: var(--border-primary); box-shadow: var(--shadow-card); }
.service-card .service-icon { width: 48px; height: 48px; border-radius: var(--radius-icon); background: linear-gradient(135deg, rgba(230,57,107,0.15), rgba(122,59,255,0.1)); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--primary); }
.service-card .service-icon svg { width: 22px; height: 22px; fill: currentColor; }
.service-card h3 { font-size: 1.125rem; font-weight: 600; color: var(--text-title); margin-bottom: 8px; }
.service-card p { font-size: 0.875rem; color: var(--text-body); line-height: 1.65; margin-bottom: 12px; }
.service-card .service-badge { display: inline-block; font-size: 0.75rem; font-weight: 600; color: var(--gold); background: rgba(201,169,106,0.1); border: 1px solid rgba(201,169,106,0.2); padding: 4px 12px; border-radius: 999px; margin-right: 8px; margin-bottom: 8px; }
.service-card .service-link { display: inline-flex; align-items: center; gap: 5px; font-size: 0.8125rem; font-weight: 600; color: var(--primary); margin-top: 4px; }
.service-card .service-link i { transition: transform 0.3s ease; }
.service-card .service-link:hover i { transform: translateX(4px); }
@media (max-width: 1024px) {
  .services-layout { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* Comparison */
.comparison-section { background: var(--bg-panel); }
.comparison-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: 24px; padding: 48px; position: relative; overflow: hidden; }
.comparison-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 32px; align-items: center; }
.comparison-col { padding: 32px 28px; border-radius: 16px; }
.comparison-col.left { background: rgba(122,59,255,0.08); border: 1px solid rgba(122,59,255,0.25); }
.comparison-col.right { background: rgba(230,57,107,0.08); border: 1px solid rgba(230,57,107,0.25); }
.comparison-col h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.comparison-col.left h3 { color: #B794FF; }
.comparison-col.right h3 { color: var(--primary); }
.comparison-col ul li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 0.9375rem; line-height: 1.6; }
.comparison-col ul li svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; }
.comparison-col.left ul li svg { fill: rgba(122,59,255,0.7); }
.comparison-col.right ul li svg { fill: var(--primary); }
.comparison-count { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 0.813rem; font-weight: 700; color: var(--gold); background: rgba(201,169,106,0.1); border: 1px solid rgba(201,169,106,0.25); padding: 6px 14px; border-radius: 999px; }
.vs-badge { width: 56px; height: 56px; background: var(--bg-panel); border: 2px solid var(--gold); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1rem; color: var(--gold); flex-shrink: 0; }
@media (max-width: 768px) {
  .comparison-panel { padding: 24px; }
  .comparison-grid { grid-template-columns: 1fr; }
  .vs-badge { margin: 0 auto; }
}

/* Testimonials */
.testimonials-section { background: var(--bg-base); }
.testimonials-list { 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-card); padding: 28px 24px; transition: var(--transition); }
.testimonial-card:hover { transform: translateY(-4px); border-color: rgba(201,169,106,0.3); }
.testimonial-card .quote { font-size: 0.9375rem; line-height: 1.7; color: var(--text-body); margin-bottom: 20px; }
.testimonial-card .quote::before { content: '“'; display: block; font-size: 2.5rem; color: var(--gold); line-height: 0.8; margin-bottom: 8px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #B8255A); display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: 700; color: #fff; }
.testimonial-author .name { font-size: 0.9375rem; font-weight: 600; color: var(--text-title); }
.testimonial-author .role { font-size: 0.75rem; color: var(--text-weak); }
.rating { display: flex; gap: 2px; margin-top: 12px; }
.rating svg { width: 16px; height: 16px; fill: var(--gold); }
@media (max-width: 768px) {
  .testimonials-list { grid-template-columns: 1fr; }
}

/* News / Hot List */
.news-section { background: var(--bg-panel); }
.news-layout { display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 48px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: flex; gap: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 20px; transition: var(--transition); }
.news-item:hover { border-color: rgba(230,57,107,0.3); transform: translateX(4px); }
.news-item .news-thumb { width: 120px; height: 84px; border-radius: 12px; overflow: hidden; flex-shrink: 0; background: #222230; }
.news-item .news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-item .news-body h3 { font-size: 1rem; font-weight: 600; color: var(--text-title); margin-bottom: 6px; line-height: 1.4; }
.news-item .news-body p { font-size: 0.8125rem; color: var(--text-weak); margin-bottom: 8px; line-height: 1.5; }
.news-item .news-meta { display: flex; gap: 12px; font-size: 0.75rem; color: var(--text-weak); }
.news-item .news-meta span { display: inline-flex; align-items: center; gap: 4px; }
.news-item .news-meta .news-tag { color: var(--primary); font-weight: 600; }
.news-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px 24px; }
.sidebar-card h3 { font-size: 1rem; font-weight: 700; color: var(--text-title); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.sidebar-card h3 svg { width: 18px; height: 18px; fill: var(--gold); }
.sidebar-card ol { counter-reset: rank; }
.sidebar-card ol li { counter-increment: rank; display: flex; align-items: flex-start; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.04); font-size: 0.875rem; color: var(--text-body); }
.sidebar-card ol li:last-child { border-bottom: none; }
.sidebar-card ol li::before { content: counter(rank); font-size: 1.25rem; font-weight: 800; color: var(--primary); line-height: 1; min-width: 24px; }
.sidebar-card ul li { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.04); font-size: 0.875rem; }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { color: var(--text-body); display: flex; align-items: center; gap: 8px; }
.sidebar-card ul li a::before { content: '▸'; color: var(--gold); font-size: 0.75rem; }
.sidebar-card ul li a:hover { color: var(--primary); }
@media (max-width: 1024px) {
  .news-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .news-item { flex-direction: column; }
  .news-item .news-thumb { width: 100%; height: 140px; }
}

/* Guide */
.guide-section { background: var(--bg-base); }
.guide-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.guide-steps { display: flex; flex-direction: column; gap: 20px; }
.guide-step { display: flex; gap: 16px; padding: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); transition: var(--transition); }
.guide-step:hover { border-color: rgba(201,169,106,0.3); }
.guide-step-num { width: 36px; height: 36px; border-radius: 10px; background: rgba(201,169,106,0.12); border: 1px solid rgba(201,169,106,0.2); color: var(--gold); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.guide-step-body h3 { font-size: 1rem; font-weight: 600; color: var(--text-title); margin-bottom: 4px; }
.guide-step-body p { font-size: 0.875rem; color: var(--text-weak); line-height: 1.6; }
.guide-visual { position: relative; overflow: hidden; border-radius: 20px; border: 1px solid var(--border); min-height: 320px; display: flex; align-items: center; justify-content: center; }
.guide-visual img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.guide-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(145deg, rgba(11,11,15,0.4) 0%, rgba(11,11,15,0.8) 100%); }
.guide-visual-content { position: relative; z-index: 2; text-align: center; padding: 32px; }
.guide-visual-content h3 { font-size: 1.5rem; font-weight: 700; color: var(--text-title); margin-bottom: 8px; }
.guide-visual-content p { font-size: 0.9375rem; color: var(--text-body); }
@media (max-width: 768px) {
  .guide-layout { grid-template-columns: 1fr; }
}

/* FAQ */
.faq-section { background: var(--bg-panel); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(230,57,107,0.25); }
.faq-item.active { border-color: rgba(230,57,107,0.4); }
.faq-item summary { list-style: none; display: flex; align-items: center; padding: 20px 24px; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--text-title); gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-num { font-size: 0.75rem; font-weight: 700; color: var(--primary); background: rgba(230,57,107,0.12); padding: 4px 10px; border-radius: 999px; flex-shrink: 0; }
.faq-item summary .faq-icon { margin-left: auto; width: 24px; height: 24px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: transform 0.3s ease; color: var(--text-weak); }
.faq-item summary .faq-icon svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; }
.faq-item[open] summary .faq-icon { transform: rotate(45deg); color: var(--primary); }
.faq-item .faq-body { padding: 0 24px 20px; }
.faq-item .faq-body p { font-size: 0.9375rem; line-height: 1.75; color: var(--text-body); padding-left: 52px; }
.faq-more { text-align: center; margin-top: 32px; }
.faq-more a { font-size: 0.9375rem; }
@media (max-width: 768px) {
  .faq-item summary { padding: 16px; }
  .faq-item .faq-body { padding: 0 16px 16px; }
  .faq-item .faq-body p { padding-left: 0; }
}

/* Contact Form */
.contact-section { background: var(--bg-base); }
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: start; }
.contact-info h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 700; color: var(--text-title); margin-bottom: 16px; }
.contact-info p { font-size: 1rem; color: var(--text-body); margin-bottom: 28px; line-height: 1.75; }
.contact-info ul li { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; font-size: 0.9375rem; }
.contact-info ul li svg { width: 18px; height: 18px; fill: var(--primary); flex-shrink: 0; }
.contact-form-wrap { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 36px; box-shadow: var(--shadow-card); }
.contact-form .form-group { margin-bottom: 20px; }
.contact-form .form-group label { margin-bottom: 8px; }
.contact-form .form-group select option { background: var(--bg-card); color: var(--text-title); }
.form-submit { width: 100%; }
.form-success { display: none; margin-top: 16px; padding: 14px 20px; background: rgba(46,204,113,0.1); border: 1px solid rgba(46,204,113,0.3); border-radius: var(--radius-btn); color: #2ECC71; font-size: 0.875rem; text-align: center; }
.form-success.show { display: block; }
@media (max-width: 768px) {
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .contact-form-wrap { padding: 24px; }
}

/* Footer */
.site-footer { background: #070709; border-top: 2px solid var(--gold); position: relative; }
.footer-top { padding: 60px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-weak); line-height: 1.7; max-width: 260px; }
.footer-col h3 { font-size: 0.9375rem; font-weight: 600; color: var(--text-title); margin-bottom: 20px; letter-spacing: 0.03em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.875rem; color: var(--text-weak); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact { font-size: 0.875rem; color: var(--text-weak); line-height: 1.8; }
.footer-contact span { display: block; margin-bottom: 6px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 24px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.75rem; color: var(--text-weak); }
.footer-bottom .footer-links { display: flex; gap: 20px; }
.footer-bottom .footer-links a { font-size: 0.75rem; color: var(--text-weak); }
.footer-bottom .footer-links a:hover { color: var(--primary); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .hero-ctas .btn { width: 100%; }
  .section { padding: 56px 0; }
}

/* Shared utility */
.text-primary { color: var(--primary); }
.text-gold { color: var(--gold); }
.bg-panel { background: var(--bg-panel); }
.cover-img { width: 100%; height: 100%; object-fit: cover; }
.material-icons { font-family: 'Material Icons'; font-weight: normal; font-style: normal; display: inline-block; line-height: 1; }

/* Animations */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.metric-card .metric-number { transition: opacity 0.3s ease; }
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root {
    --primary: #E6396B;
    --primary-hover: #FF5C8A;
    --accent: #7A3BFF;
    --gold: #C9A96A;
    --bg-base: #0B0B0F;
    --bg-panel: #14141A;
    --bg-card: #1B1B23;
    --text-title: #F2F2F6;
    --text-body: #A9A9B2;
    --text-weak: #7A7A85;
    --border: rgba(255,255,255,0.08);
    --border-primary: rgba(230,57,107,0.4);
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-icon: 9px;
    --shadow-card: 0 20px 50px rgba(0,0,0,0.4);
    --transition: all 0.3s ease;
    --container-w: 1200px;
    --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}
* , *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-stack);
    background: var(--bg-base);
    color: var(--text-body);
    line-height: 1.75;
    letter-spacing: 0.02em;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-hover); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; color: var(--text-title); background: var(--bg-base); border: 1px solid var(--border); border-radius: var(--radius-btn); padding: 14px 16px; width: 100%; transition: border 0.3s ease, box-shadow 0.3s ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,57,107,0.15); }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(64px, 8vw, 112px) 0; }
.section-header { margin-bottom: 48px; }
.section-header .section-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; color: var(--primary); background: rgba(230,57,107,0.12); border: 1px solid rgba(230,57,107,0.25); padding: 6px 16px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase; }
.section-header h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; color: var(--text-title); letter-spacing: 0.015em; margin-bottom: 12px; }
.section-header p { font-size: 1rem; color: var(--text-body); max-width: 640px; line-height: 1.75; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; font-size: 1rem; font-weight: 600; border-radius: var(--radius-btn); transition: all 0.3s ease; line-height: 1.4; letter-spacing: 0.02em; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,107,0.35); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:focus-visible, .btn-outline:focus-visible, .nav-cta:focus-visible, .nav-toggle:focus-visible, .page-link:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-outline { background: transparent; color: var(--text-title); border: 1px solid rgba(255,255,255,0.35); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-outline:active { transform: scale(0.98); }
.btn-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--primary); padding: 0; background: none; }
.btn-link i { transition: transform 0.3s ease; }
.btn-link:hover i { transform: translateX(4px); }
.btn-link:hover { color: var(--primary-hover); }
.site-header { background: var(--bg-panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.nav-container { display: flex; align-items: center; gap: 20px; padding: 12px 24px; max-width: var(--container-w); margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--primary), #B8255A); border-radius: 9px; display: flex; align-items: center; justify-content: center; position: relative; }
.logo-icon svg { width: 18px; height: 18px; fill: #fff; }
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--text-title); letter-spacing: 0.03em; }
.nav-links { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.nav-item { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 12px; background: #1B1B23; border: 1px solid var(--border); color: var(--text-body); font-size: 0.875rem; font-weight: 500; transition: var(--transition); }
.nav-item i { font-size: 0.9rem; color: var(--text-weak); transition: var(--transition); font-style: normal; }
.nav-item:hover { background: #24242D; color: var(--primary); border-color: rgba(230,57,107,0.3); }
.nav-item:hover i { color: var(--primary); }
.nav-item.active { background: rgba(230,57,107,0.15); color: var(--primary); border-color: rgba(230,57,107,0.4); }
.nav-item.active i { color: var(--primary); }
.nav-cta { padding: 10px 22px; font-size: 0.875rem; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: #1B1B23; border: 1px solid var(--border); align-items: center; justify-content: center; color: var(--text-body); }
.nav-toggle:hover { color: var(--primary); border-color: rgba(230,57,107,0.3); }
.nav-toggle svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; }
@media (max-width: 1024px) {
    .nav-links { position: fixed; top: 60px; left: 0; right: 0; background: var(--bg-panel); flex-direction: column; align-items: stretch; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); gap: 12px; transform: translateY(-120%); transition: transform 0.35s ease; display: flex; z-index: 999; }
    .nav-links.open { transform: translateY(0); }
    .nav-item { justify-content: center; }
    .nav-toggle { display: flex; }
    .nav-cta { margin-left: auto; }
}
.category-hero { position: relative; background: var(--bg-base); padding: 72px 0 56px; border-bottom: 1px solid var(--border); overflow: hidden; }
.category-hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat; opacity: 0.15; pointer-events: none; }
.category-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,11,15,0.7) 0%, var(--bg-base) 100%); pointer-events: none; }
.category-hero .container { position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--text-weak); margin-bottom: 20px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-weak); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #3A3A45; }
.breadcrumb .current { color: var(--text-body); }
.category-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(230,57,107,0.12); border: 1px solid rgba(230,57,107,0.3); color: var(--primary); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; padding: 6px 16px; border-radius: 999px; margin-bottom: 16px; }
.category-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.category-title { font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.1; color: var(--text-title); letter-spacing: 0.015em; margin-bottom: 20px; max-width: 800px; }
.category-title .highlight { color: var(--primary); }
.category-desc { font-size: 1rem; color: var(--text-body); max-width: 760px; line-height: 1.8; }
.category-desc p + p { margin-top: 12px; }
@media (max-width: 768px) {
    .category-hero { padding: 48px 0 40px; }
    .category-title { font-size: 2rem; }
}
.filter-section { padding: 40px 0 0; }
.filter-bar { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 12px; scrollbar-width: thin; scrollbar-color: rgba(230,57,107,0.4) transparent; }
.filter-bar::-webkit-scrollbar { height: 4px; }
.filter-bar::-webkit-scrollbar-thumb { background: rgba(230,57,107,0.4); border-radius: 99px; }
.filter-bar::-webkit-scrollbar-track { background: transparent; }
.filter-item { flex-shrink: 0; display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 999px; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-body); font-size: 0.875rem; font-weight: 500; cursor: pointer; transition: var(--transition); white-space: nowrap; }
.filter-item i { font-style: normal; font-size: 0.9rem; color: var(--text-weak); transition: var(--transition); }
.filter-item:hover { border-color: rgba(230,57,107,0.3); color: var(--primary); background: #24242D; }
.filter-item:hover i { color: var(--primary); }
.filter-item.active { background: rgba(230,57,107,0.15); border-color: rgba(230,57,107,0.4); color: var(--primary); font-weight: 600; }
.filter-item.active i { color: var(--primary); }
.content-section { padding: clamp(64px, 6vw, 88px) 0 40px; }
.content-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.content-section-head h2 { font-size: clamp(1.75rem, 3vw, 2.2rem); font-weight: 700; color: var(--text-title); letter-spacing: 0.015em; }
.content-section-head p { color: var(--text-weak); font-size: 0.875rem; }
.content-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.content-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; display: flex; flex-direction: column; }
.content-card:hover { transform: translateY(-6px); border-color: var(--border-primary); box-shadow: 0 24px 60px rgba(0,0,0,0.5); }
.card-media { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #101014; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.content-card:hover .card-media img { transform: scale(1.03); }
.card-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,11,15,0) 60%, rgba(11,11,15,0.6) 100%); pointer-events: none; }
.card-badge { position: absolute; top: 14px; left: 14px; z-index: 2; display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; }
.card-badge.magenta { background: rgba(230,57,107,0.2); border: 1px solid rgba(230,57,107,0.35); color: #FF7A9E; backdrop-filter: blur(6px); }
.card-badge.gold { background: rgba(201,169,106,0.15); border: 1px solid rgba(201,169,106,0.35); color: #DDBF8C; backdrop-filter: blur(6px); }
.card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-title); line-height: 1.4; margin-bottom: 10px; letter-spacing: 0.01em; }
.card-body h3 a { color: inherit; }
.card-body h3 a:hover { color: var(--primary); }
.card-body p { font-size: 0.875rem; color: var(--text-body); line-height: 1.7; flex: 1; }
.card-meta { display: flex; align-items: center; gap: 14px; margin-top: 18px; font-size: 0.75rem; color: var(--text-weak); flex-wrap: wrap; }
.card-meta .meta-item { display: inline-flex; align-items: center; gap: 5px; }
.card-meta .tag { padding: 3px 10px; border-radius: 999px; background: rgba(255,255,255,0.06); border: 1px solid var(--border); color: var(--text-body); font-size: 0.7rem; }
@media (max-width: 768px) {
    .content-grid { grid-template-columns: 1fr; }
    .content-section-head h2 { font-size: 1.6rem; }
}
.pagination-section { padding: 48px 0 64px; }
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; flex-wrap: wrap; }
.page-link { min-width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; padding: 0 12px; border-radius: 10px; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-body); font-weight: 500; font-size: 0.875rem; transition: var(--transition); }
.page-link:hover { border-color: var(--primary); color: var(--primary); background: #24242D; }
.page-link.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 600; box-shadow: 0 6px 20px rgba(230,57,107,0.3); }
.page-link.active:hover { color: #fff; background: var(--primary); }
.page-prev, .page-next { font-size: 1rem; }
.page-dots { color: var(--text-weak); }
.cta-section { padding: 0 0 clamp(64px, 8vw, 112px); }
.cta-banner { position: relative; background: var(--bg-panel); border: 1px solid rgba(201,169,106,0.3); border-radius: 20px; text-align: center; padding: 64px 32px; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-5.jpg') center/cover no-repeat; opacity: 0.08; pointer-events: none; }
.cta-banner::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(230,57,107,0.08) 0%, transparent 70%); pointer-events: none; }
.cta-banner .container { position: relative; z-index: 1; }
.cta-banner .cta-icon { width: 56px; height: 56px; margin: 0 auto 20px; border-radius: 14px; background: linear-gradient(135deg, var(--primary), #B8255A); display: flex; align-items: center; justify-content: center; }
.cta-banner .cta-icon svg { width: 26px; height: 26px; fill: #fff; }
.cta-banner h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 700; color: var(--text-title); margin-bottom: 16px; letter-spacing: 0.015em; line-height: 1.25; }
.cta-banner p { max-width: 560px; margin: 0 auto 32px; color: var(--text-body); font-size: 1rem; line-height: 1.75; }
.cta-banner .btn { position: relative; z-index: 2; }
.cta-banner .gold-line { width: 60px; height: 2px; background: var(--gold); margin: 0 auto 28px; border-radius: 99px; }
@media (max-width: 768px) {
    .cta-banner { padding: 48px 20px; }
}
.site-footer { background: #070709; border-top: 1px solid rgba(201,169,106,0.2); padding-top: 64px; }
.footer-top { border-bottom: 1px solid var(--border); padding-bottom: 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-weak); line-height: 1.7; max-width: 320px; }
.footer-col h3 { font-size: 0.875rem; font-weight: 600; color: var(--text-title); margin-bottom: 16px; letter-spacing: 0.05em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 0.875rem; color: var(--text-weak); transition: var(--transition); }
.footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact span { display: block; font-size: 0.875rem; color: var(--text-weak); margin-bottom: 8px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 24px 0 28px; flex-wrap: wrap; }
.footer-bottom p { font-size: 0.75rem; color: var(--text-weak); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.75rem; color: var(--text-weak); }
.footer-links a:hover { color: var(--primary); }
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
.fade-up { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    html { scroll-behavior: auto; }
    .fade-up { opacity: 1; transform: none; }
    .content-card:hover { transform: none; }
}