/* roulang page: index */
:root {
  --primary: #E8622C;
  --primary-deep: #C94E1E;
  --primary-soft: rgba(232, 98, 44, 0.14);
  --bg: #16141A;
  --surface: #211E24;
  --surface-raised: #2A2630;
  --text: #F5EFE8;
  --text-muted: #B4A99C;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #D4366E;
  --gold: #E8B43A;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
  --transition: 0.2s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.8; font-size: 1rem; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; color: inherit; cursor: pointer; }
input, textarea { font-family: inherit; color: var(--text); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; position: relative; z-index: 2; }
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 2.5rem; }
.section-label { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 0.875rem; font-weight: 600; padding: 0.3rem 0.9rem; border-radius: 999px; margin-bottom: 0.8rem; }
.section-title { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; line-height: 1.3; margin-bottom: 0.6rem; }
.section-desc { color: var(--text-muted); font-size: 0.95rem; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.85rem 1.8rem; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600; line-height: 1.2; transition: var(--transition); border: 1px solid transparent; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(232, 98, 44, 0.25); }
.btn-primary:hover { background: var(--primary-deep); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.btn-primary:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.btn-outline { background: transparent; border: 1px solid rgba(255, 255, 255, 0.3); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-lg { padding: 1rem 2.2rem; font-size: 1.05rem; border-radius: var(--radius-md); }
.btn-block { width: 100%; }

.badge { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 0.8rem; font-weight: 600; padding: 0.3rem 0.75rem; border-radius: 999px; margin: 0.25rem 0.25rem 0 0; }

/* 导航 */
.site-nav-wrap { position: fixed; top: 12px; left: 0; right: 0; z-index: 1000; padding: 0 0.75rem; }
.site-nav-wrap .container { max-width: 1280px; }
.nav-panel { display: flex; align-items: center; justify-content: space-between; background: rgba(33, 30, 36, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 0.7rem 1.25rem; gap: 1rem; }
.nav-logo { display: flex; align-items: center; gap: 0.6rem; font-size: 1.3rem; font-weight: 800; white-space: nowrap; }
.logo-icon { display: inline-flex; flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 0.35rem; }
.nav-item { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.55rem 0.95rem; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; color: var(--text-muted); transition: var(--transition); }
.nav-item:hover { background: var(--primary-soft); color: var(--primary); transform: translateY(-2px); }
.nav-item.active { background: var(--primary-soft); color: var(--primary); font-weight: 700; box-shadow: inset 0 -2px 0 var(--primary); }
.nav-cta { padding: 0.6rem 1.4rem; font-size: 0.9rem; }
.nav-burger { display: none; width: 42px; height: 42px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); align-items: center; justify-content: center; font-size: 1.3rem; line-height: 1; }
.nav-burger:focus-visible { outline: 2px solid var(--primary); }

/* Hero */
.hero-section { position: relative; padding: clamp(7rem, 14vw, 11rem) 0 5rem; background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat; }
.hero-section::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at center 30%, rgba(22, 20, 26, 0.72) 0%, rgba(22, 20, 26, 0.92) 100%); }
.hero-grid { display: flex; align-items: center; gap: 2rem; }
.hero-copy { flex: 1.1; padding-right: 1rem; }
.hero-copy h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); font-weight: 800; line-height: 1.15; margin-bottom: 1.2rem; }
.hero-copy h1 span { color: var(--primary); }
.hero-sub { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 1.8rem; max-width: 560px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 1.5rem; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.hero-side { flex: 0.9; min-width: 360px; }
.progress-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 2rem 1.8rem; position: relative; overflow: hidden; }
.progress-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--gold)); }
.progress-ring { display: flex; align-items: center; justify-content: center; gap: 1.2rem; margin-bottom: 1.5rem; }
.progress-ring svg { width: 130px; height: 130px; transform: rotate(-90deg); }
.ring-track { fill: none; stroke: rgba(255, 255, 255, 0.08); stroke-width: 8; }
.ring-value { fill: none; stroke: var(--primary); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 1s ease; }
.ring-text { display: flex; flex-direction: column; align-items: flex-start; }
.ring-text strong { font-size: 2.2rem; font-weight: 800; color: var(--gold); line-height: 1.1; }
.ring-text span { font-size: 0.85rem; color: var(--text-muted); }
.progress-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.8rem; color: var(--text); }
.tier-list { display: grid; gap: 0.6rem; margin-bottom: 1.3rem; }
.tier-item { display: flex; justify-content: space-between; align-items: center; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.7rem 1rem; transition: var(--transition); }
.tier-item:hover { background: var(--primary-soft); border-color: var(--primary); }
.tier-name { font-size: 0.9rem; font-weight: 500; }
.tier-count { font-size: 0.9rem; color: var(--gold); font-weight: 700; }

/* 卖点三连 */
.features-section { padding-top: 4rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; align-items: stretch; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 1.6rem 1.4rem; display: flex; flex-direction: column; gap: 0.8rem; transition: var(--transition); position: relative; min-height: 260px; }
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.feature-card-accent { border-top: 3px solid var(--primary); }
.feature-icon { width: 58px; height: 58px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); }
.feature-icon svg { width: 28px; height: 28px; }
.feature-thumb { border-radius: var(--radius-md); overflow: hidden; position: relative; margin-bottom: 0.3rem; }
.feature-thumb img { width: 100%; height: 130px; object-fit: cover; }
.feature-badge { position: absolute; top: 10px; right: 10px; background: var(--accent); color: #fff; font-size: 0.75rem; font-weight: 700; padding: 0.2rem 0.6rem; border-radius: 999px; }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; }
.feature-card p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.75; }
.feature-num { font-size: 2.8rem; font-weight: 800; color: var(--gold); line-height: 1; }
.feature-num-label { font-size: 0.85rem; color: var(--text-muted); }
.feature-card-accent .feature-num { margin-top: auto; }

/* 场景演示 */
.scene-section { background: rgba(255, 255, 255, 0.02); }
.scene-block { padding: 2rem 0; }
.scene-media { padding-right: 1.5rem; }
.scene-media img { width: 100%; height: 320px; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); }
.scene-copy { padding-left: 1.5rem; }
.scene-copy .scene-tag { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 0.8rem; font-weight: 600; padding: 0.3rem 0.9rem; border-radius: 999px; margin-bottom: 1rem; }
.scene-copy h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.8rem; }
.scene-copy > p { color: var(--text-muted); margin-bottom: 1rem; }
.scene-list { list-style: none; display: grid; gap: 0.65rem; }
.scene-list li { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.95rem; line-height: 1.6; color: var(--text); }
.scene-list li::before { content: ""; flex-shrink: 0; width: 18px; height: 18px; margin-top: 4px; border-radius: 50%; background: var(--primary-soft); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E8622C'%3E%3Cpath d='M6 3.5 11.5 8 6 12.5v-9z'/%3E%3C/svg%3E"); background-size: 9px; background-position: center; background-repeat: no-repeat; }

/* 时段卡 */
.time-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.8rem 1.4rem; box-shadow: var(--shadow); text-align: left; transition: var(--transition); }
.time-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.time-icon { width: 48px; height: 48px; border-radius: var(--radius-md); background: var(--primary-soft); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 1rem; }
.time-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.time-desc { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.time-desc strong { color: var(--text); font-weight: 600; }

/* 资讯区 */
.news-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 2rem; align-items: start; }
.news-list .news-item { display: flex; gap: 1rem; padding: 1rem 0.5rem; border-bottom: 1px solid var(--border); transition: var(--transition); }
.news-list .news-item:hover { background: var(--surface); border-radius: var(--radius-sm); padding-left: 1rem; }
.news-list .news-item:last-child { border-bottom: none; }
.news-date { flex-shrink: 0; width: 56px; height: 56px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 1rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.news-date small { font-size: 0.7rem; font-weight: 500; color: var(--text-muted); }
.news-info { flex: 1; }
.news-info strong { display: block; font-size: 0.98rem; font-weight: 600; margin-bottom: 0.25rem; }
.news-info strong a:hover { color: var(--primary); }
.news-info p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; }
.editor-pick { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow); position: sticky; top: 110px; }
.editor-pick h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.4rem; }
.editor-pick h3::before { content: ""; width: 4px; height: 18px; background: var(--primary); border-radius: 2px; }
.pick-card { display: flex; gap: 0.8rem; padding: 0.7rem 0; border-bottom: 1px solid var(--border); align-items: center; }
.pick-card:last-child { border-bottom: none; }
.pick-card img { width: 76px; height: 52px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.pick-info strong { font-size: 0.85rem; font-weight: 600; display: block; line-height: 1.4; }
.pick-info span { font-size: 0.75rem; color: var(--text-muted); }

/* 社会认同 */
.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem 1.5rem; box-shadow: var(--shadow); margin-bottom: 2.5rem; }
.stat-item { text-align: center; }
.stat-num { font-size: clamp(2rem, 3vw, 3rem); font-weight: 800; color: var(--gold); line-height: 1.2; display: block; }
.stat-item span { font-size: 0.85rem; color: var(--text-muted); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-bottom: 2.5rem; }
.review-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow); transition: var(--transition); }
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.review-head { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.8rem; }
.review-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.review-name { font-size: 0.9rem; font-weight: 600; }
.review-star { color: var(--gold); font-size: 0.8rem; letter-spacing: 2px; }
.review-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }
.hot-list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow); }
.hot-list h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.8rem; display: flex; align-items: center; gap: 0.4rem; }
.hot-list h3::before { content: ""; width: 4px; height: 18px; background: var(--gold); border-radius: 2px; }
.hot-item { display: flex; align-items: center; gap: 1rem; padding: 0.9rem 0.5rem; border-bottom: 1px solid var(--border); transition: var(--transition); cursor: default; }
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { background: var(--surface-raised); border-radius: var(--radius-sm); padding-left: 1rem; }
.hot-num { font-size: 1.4rem; font-weight: 800; color: rgba(255, 255, 255, 0.15); min-width: 40px; }
.hot-item:first-child .hot-num { color: var(--gold); }
.hot-info { flex: 1; }
.hot-info strong { font-size: 0.95rem; font-weight: 600; display: block; }
.hot-info p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; }
.hot-arrow { color: var(--text-muted); font-size: 1.2rem; transition: var(--transition); }
.hot-item:hover .hot-arrow { color: var(--primary); transform: translateX(4px); }

/* 订阅表单 */
.newsletter-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat; border: 1px solid var(--border); box-shadow: var(--shadow); }
.newsletter-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(22, 20, 26, 0.92), rgba(232, 98, 44, 0.25)); }
.newsletter-content { position: relative; z-index: 2; padding: 3rem 2rem; text-align: center; max-width: 640px; margin: 0 auto; }
.newsletter-content h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; margin-bottom: 0.8rem; }
.newsletter-content p { color: var(--text-muted); margin-bottom: 1.8rem; }
.newsletter-form { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }
.newsletter-form input[type="email"] { min-width: 280px; padding: 0.85rem 1.2rem; border-radius: var(--radius-sm); border: 1px solid var(--border); background: rgba(22, 20, 26, 0.8); color: var(--text); font-size: 0.95rem; transition: var(--transition); }
.newsletter-form input[type="email"]:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.form-feedback { margin-top: 1rem; font-size: 0.9rem; min-height: 1.2em; }
.form-feedback.success { color: #7BE37A; }
.form-feedback.error { color: #FF8FA8; }

/* FAQ */
.faq-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 1.8rem; }
.accordion { list-style: none; display: grid; gap: 0.8rem; }
.accordion-item { background: var(--surface-raised); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.accordion-item:hover { border-color: var(--primary); }
.accordion-title { display: block; padding: 1.1rem 1.4rem; font-size: 0.98rem; font-weight: 600; color: var(--text); background: transparent; border: none; position: relative; transition: var(--transition); }
.accordion-title:hover { color: var(--primary); }
.accordion-item.is-active .accordion-title { color: var(--primary); }
.accordion-title::after { content: "+"; position: absolute; right: 1.2rem; top: 50%; transform: translateY(-50%); font-size: 1.2rem; color: var(--text-muted); transition: var(--transition); }
.accordion-item.is-active .accordion-title::after { content: "−"; color: var(--primary); }
.accordion-content { padding: 0 1.4rem 1.2rem; color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; }

/* CTA */
.cta-section { position: relative; text-align: center; background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(22, 20, 26, 0.88), rgba(232, 98, 44, 0.2)); }
.cta-content { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; padding: 4.5rem 1rem; }
.cta-content h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; margin-bottom: 1rem; }
.cta-content p { color: var(--text-muted); margin-bottom: 2rem; font-size: 1rem; }

/* 页脚 */
.site-footer { background: #121016; border-top: 1px solid var(--border); padding: 3.5rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.footer-brand .nav-logo { margin-bottom: 0.8rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; max-width: 320px; margin-bottom: 1rem; }
.footer-social { display: flex; gap: 0.7rem; }
.footer-social a { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); transition: var(--transition); }
.footer-social a:hover { background: var(--primary-soft); color: var(--primary); border-color: var(--primary); transform: translateY(-3px); }
.footer-social svg { width: 18px; height: 18px; fill: currentColor; }
.footer-column h3 { font-size: 1rem; font-weight: 700; margin-bottom: 1rem; }
.footer-links { list-style: none; display: grid; gap: 0.5rem; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.footer-tags a { background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); font-size: 0.8rem; padding: 0.35rem 0.8rem; border-radius: 999px; transition: var(--transition); }
.footer-tags a:hover { background: var(--primary-soft); color: var(--primary); border-color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 1.5rem; text-align: center; color: var(--text-muted); font-size: 0.85rem; }

/* 底部固定转化条 */
.bottom-bar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 999; padding: 0 1rem 1rem; transform: translateY(120%); transition: transform 0.35s ease; }
.bottom-bar.visible { transform: translateY(0); }
.bottom-bar-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: rgba(33, 30, 36, 0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-hover); padding: 0.9rem 1.4rem; }
.bottom-bar-inner p { font-weight: 600; font-size: 0.95rem; }
.bottom-bar-inner p span { color: var(--primary); }

/* 响应式 */
@media (max-width: 1024px) {
 .nav-links { display: none; position: absolute; top: calc(100% + 8px); left: 0.75rem; right: 0.75rem; background: rgba(33, 30, 36, 0.97); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1rem; flex-direction: column; align-items: stretch; gap: 0.5rem; box-shadow: var(--shadow-hover); }
 .nav-links.open { display: flex; }
 .nav-item { justify-content: flex-start; padding: 0.7rem 1rem; }
 .nav-burger { display: inline-flex; }
 .nav-cta { display: none; }
 .hero-grid { flex-direction: column; }
 .hero-side { min-width: 0; width: 100%; max-width: 520px; margin: 0 auto; }
 .feature-grid { grid-template-columns: 1fr 1fr; }
 .scenes { display: grid; gap: 3rem; }
 .news-layout { grid-template-columns: 1fr; }
 .editor-pick { position: static; }
 .reviews-grid { grid-template-columns: 1fr 1fr; }
 .footer-grid { grid-template-columns: 1fr 1fr; }
 .scene-copy { padding-left: 0; margin-top: 1.5rem; }
 .scene-media { padding-right: 0; }
}
@media (max-width: 768px) {
 .feature-grid { grid-template-columns: 1fr; }
 .stats-bar { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
 .reviews-grid { grid-template-columns: 1fr; }
 .hot-list, .faq-card, .editor-pick { padding: 1.2rem; }
 .newsletter-form { flex-direction: column; align-items: stretch; }
 .newsletter-form input[type="email"] { min-width: 0; }
 .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
 .bottom-bar-inner { padding: 0.8rem 1rem; }
 .bottom-bar-inner p { font-size: 0.85rem; }
 .btn-lg { padding: 0.85rem 1.5rem; font-size: 0.95rem; }
 .section { padding: 2.8rem 0; }
 .hero-actions .btn { flex: 1; justify-content: center; }
}
@media (max-width: 520px) {
 .nav-panel { padding: 0.6rem 0.9rem; }
 .nav-logo { font-size: 1.1rem; }
 .hero-section { padding-top: 6.5rem; padding-bottom: 3rem; }
 .progress-card { padding: 1.5rem 1.2rem; }
 .progress-ring svg { width: 100px; height: 100px; }
 .ring-text strong { font-size: 1.7rem; }
 .scene-media img { height: 220px; }
 .news-date { width: 48px; height: 48px; font-size: 0.9rem; }
 .bottom-bar-inner p { display: none; }
 .bottom-bar-inner .btn { width: 100%; }
}

/* roulang page: category1 */
:root {
            --primary: #E8622C;
            --primary-deep: #C94E1E;
            --primary-soft: rgba(232, 98, 44, 0.14);
            --bg: #16141A;
            --surface: #211E24;
            --surface-raised: #2A2630;
            --text: #F5EFE8;
            --text-muted: #B4A99C;
            --border: rgba(255, 255, 255, 0.08);
            --accent: #D4366E;
            --gold: #E8B43A;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --transition: 0.2s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            position: relative;
            z-index: 2;
        }
        .section {
            padding: clamp(3rem, 7vw, 5.5rem) 0;
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 2.5rem;
        }
        .section-head.text-left {
            text-align: left;
            margin-left: 0;
        }
        .section-label {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.8rem;
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.6rem;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.85rem 1.8rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.2;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 98, 44, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-deep);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-lg {
            padding: 1rem 2.2rem;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }
        .btn:active {
            transform: scale(0.97);
        }

        .badge {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            margin: 0.25rem 0.25rem 0 0;
        }

        /* 导航 */
        .site-nav-wrap {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 0.75rem;
        }
        .site-nav-wrap .container {
            max-width: 1280px;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(33, 30, 36, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 0.7rem 1.25rem;
            gap: 1rem;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 800;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 0.95rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .nav-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .nav-item.active {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 700;
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-item:active {
            transform: scale(0.97);
        }
        .nav-cta {
            padding: 0.6rem 1.4rem;
            font-size: 0.9rem;
        }
        .nav-burger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--surface);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            line-height: 1;
            flex-shrink: 0;
        }
        .nav-burger:focus-visible {
            outline: 2px solid var(--primary);
        }

        /* 面包屑 */
        .breadcrumb-wrap {
            padding: 112px 0 0.5rem;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .breadcrumb li+li::before {
            content: "/";
            color: var(--border);
            font-size: 0.8rem;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--primary);
            font-weight: 600;
        }

        /* 分类页头 */
        .page-header {
            position: relative;
            padding: 3rem 0 2.5rem;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .page-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(22, 20, 26, 0.94) 55%, rgba(22, 20, 26, 0.78) 100%);
        }
        .page-header-content {
            max-width: 760px;
        }
        .page-header-content h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .page-header-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 1.4rem;
        }
        .page-header .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        /* 标签条 */
        .tag-bar-section {
            padding: 2.2rem 0 0;
        }
        .tag-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.15rem;
            border-radius: 999px;
            background: var(--surface);
            border: 1px solid var(--border);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            cursor: default;
        }
        .tag-item:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 分类内容网格 */
        .category-grid-section {
            padding: clamp(2.5rem, 6vw, 4.5rem) 0;
        }
        .category-grid.row {
            max-width: none;
            margin-left: -0.6rem;
            margin-right: -0.6rem;
        }
        .category-grid>.column {
            padding: 0.6rem;
        }
        .category-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .card-media {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--surface-raised);
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .category-card:hover .card-media img {
            transform: scale(1.05);
        }
        .card-media .badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            margin: 0;
            backdrop-filter: blur(4px);
            background: rgba(22, 20, 26, 0.7);
            border: 1px solid var(--border);
        }
        .card-body {
            padding: 1.2rem 1.25rem 1.3rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 0.45rem;
            color: var(--text);
        }
        .card-body p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }
        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 0.8rem;
        }
        .card-meta .card-cat {
            color: var(--primary);
            font-weight: 600;
        }

        /* 推荐大卡 */
        .feature-single-section {
            padding: 0 0 clamp(3rem, 7vw, 5rem);
        }
        .feature-single-card {
            display: flex;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            min-height: 340px;
        }
        .feature-single-media {
            flex: 1.05;
            min-height: 320px;
            position: relative;
        }
        .feature-single-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-single-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 70%, rgba(33, 30, 36, 0.6) 100%);
        }
        .feature-single-body {
            flex: 1;
            padding: 2.4rem 2rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
        }
        .feature-single-body .section-label {
            margin-bottom: 0.6rem;
        }
        .feature-single-body h2 {
            font-size: clamp(1.4rem, 2.6vw, 1.9rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 1rem;
            color: var(--text);
        }
        .feature-single-body>p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 1.2rem;
        }
        .feature-points {
            display: grid;
            gap: 0.55rem;
            margin-bottom: 1.6rem;
        }
        .feature-points li {
            display: flex;
            gap: 0.55rem;
            align-items: flex-start;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .feature-points li::before {
            content: "";
            flex-shrink: 0;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
            margin-top: 0.55em;
        }

        /* FAQ */
        .faq-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: clamp(3rem, 6vw, 4.5rem) 0;
        }
        .faq-accordion-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion {
            background: transparent;
            margin: 0;
        }
        .accordion-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.9rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:hover {
            border-color: var(--primary);
        }
        .accordion-item.is-active {
            border-color: var(--primary);
            box-shadow: 0 0 0 1px var(--primary);
        }
        .accordion-title {
            padding: 1.05rem 3rem 1.05rem 1.25rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            border-bottom: 1px solid transparent;
            display: block;
            position: relative;
            line-height: 1.5;
        }
        .accordion-title:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .accordion-title::before {
            display: none;
        }
        .accordion-title::after {
            content: "+";
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            line-height: 1;
        }
        .accordion-item.is-active .accordion-title {
            color: var(--primary);
            border-bottom-color: var(--border);
        }
        .accordion-item.is-active .accordion-title::after {
            content: "";
            width: 24px;
            height: 24px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .accordion-item.is-active .accordion-title::after {
            content: "−";
            color: #fff;
            background: var(--primary);
            font-size: 1rem;
        }
        .accordion-content {
            padding: 0.2rem 1.25rem 1.1rem;
            color: var(--text-muted);
            line-height: 1.75;
            font-size: 0.95rem;
            background: rgba(0, 0, 0, 0.15);
        }
        .accordion-content a {
            color: var(--primary);
        }

        /* CTA */
        .cta-section {
            padding: clamp(3rem, 7vw, 5rem) 0;
            position: relative;
        }
        .cta-box {
            position: relative;
            padding: clamp(2.5rem, 6vw, 4rem);
            border-radius: var(--radius-lg);
            text-align: center;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 20, 26, 0.92), rgba(232, 98, 44, 0.35));
        }
        .cta-box>* {
            position: relative;
            z-index: 2;
        }
        .cta-box h2 {
            font-size: clamp(1.6rem, 3.2vw, 2.2rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 0.8rem;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.98rem;
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 1.6rem;
        }

        /* 页脚 */
        .site-footer {
            background: #100E13;
            border-top: 1px solid var(--border);
            padding: 3.2rem 0 1.6rem;
            position: relative;
            z-index: 2;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.2rem;
        }
        .footer-brand .nav-logo {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 0.6rem;
            margin-top: 1.1rem;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--surface);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-social svg {
            width: 18px;
            height: 18px;
            fill: currentColor;
        }
        .footer-column h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text);
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.45rem;
        }
        .footer-tags a {
            display: inline-block;
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            background: var(--surface);
            border: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-tags a:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 1.3rem;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 移动端 */
        @media (max-width: 1024px) {
            .nav-panel {
                flex-wrap: wrap;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: var(--surface);
                border: 1px solid var(--border);
                border-radius: 14px;
                padding: 0.75rem;
                flex-direction: column;
                align-items: stretch;
                box-shadow: var(--shadow);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-burger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-item {
                padding: 0.65rem 0.9rem;
                border-radius: var(--radius-sm);
            }
            .feature-single-card {
                flex-direction: column;
            }
            .feature-single-media {
                min-height: 220px;
            }
            .feature-single-media::after {
                background: linear-gradient(180deg, transparent 60%, rgba(22, 20, 26, 0.5) 100%);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .breadcrumb-wrap {
                padding-top: 100px;
            }
            .page-header {
                padding: 2.4rem 0 2rem;
            }
            .category-grid.row {
                margin-left: -0.4rem;
                margin-right: -0.4rem;
            }
            .category-grid>.column {
                padding: 0.4rem;
            }
        }
        @media (max-width: 640px) {
            .nav-logo {
                font-size: 1.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .feature-single-body {
                padding: 1.6rem 1.3rem;
            }
            .cta-box {
                padding: 2rem 1.3rem;
            }
            .tag-bar {
                gap: 0.45rem;
            }
            .tag-item {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
            .card-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.2rem;
            }
        }
        @media (max-width: 520px) {
            .nav-panel {
                padding: 0.55rem 0.9rem;
            }
            .nav-burger {
                width: 38px;
                height: 38px;
            }
            .hero-badges {
                gap: 0.3rem;
            }
            .breadcrumb-wrap {
                padding-top: 90px;
            }
            .page-header-content h1 {
                font-size: 1.6rem;
            }
            .accordion-title {
                padding: 0.9rem 2.8rem 0.9rem 1rem;
                font-size: 0.95rem;
            }
            .accordion-content {
                padding: 0.2rem 1rem 0.9rem;
                font-size: 0.9rem;
            }
        }

        /* 打印与无障碍 */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
        }