/* roulang page: index */
:root {
  --graphite: #16181D;
  --graphite-light: #23262B;
  --amber: #E6A400;
  --amber-bright: #FFC21A;
  --warm-white: #F5F5F1;
  --border: #E0E0DB;
  --text-main: #1F2328;
  --text-sub: #6B7280;
  --white: #FFFFFF;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(22, 24, 29, 0.04);
  --shadow-lg: 0 12px 32px rgba(22, 24, 29, 0.10);
  --transition: 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.75; color: var(--text-main); background: var(--warm-white); overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.row { --bs-gutter-x: 2rem; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }
section { padding: 96px 0; }
.section-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; color: var(--amber); background: rgba(230, 164, 0, 0.08); padding: 6px 16px; border-radius: 4px; margin-bottom: 16px; text-transform: uppercase; }
.section-title { font-size: 36px; font-weight: 800; line-height: 1.25; letter-spacing: -0.01em; color: var(--text-main); margin-bottom: 16px; }
.section-subtitle { font-size: 16px; color: var(--text-sub); max-width: 560px; line-height: 1.7; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 1000; }
.header-top { background: var(--white); height: 64px; display: flex; align-items: center; }
.header-top .container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; }
.logo-mark { background: var(--amber); color: var(--white); font-weight: 800; font-size: 18px; width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-right: 10px; letter-spacing: -0.02em; box-shadow: 0 4px 12px rgba(230, 164, 0, 0.35); }
.logo-text { font-size: 20px; font-weight: 800; color: var(--text-main); letter-spacing: -0.02em; }
.logo-text span { color: var(--amber); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-search { display: flex; align-items: center; background: var(--warm-white); border-radius: var(--r-sm); padding: 8px 16px; gap: 8px; border: 1px solid var(--border); }
.header-search input { border: none; background: transparent; outline: none; font-size: 14px; width: 140px; color: var(--text-main); }
.header-search i { color: var(--text-sub); font-size: 14px; }
.header-phone { font-size: 14px; font-weight: 600; color: var(--text-main); display: flex; align-items: center; gap: 8px; }
.header-phone i { color: var(--amber); }
.btn-consult { background: var(--amber); color: var(--graphite); font-size: 14px; font-weight: 600; padding: 10px 24px; border-radius: var(--r-sm); border: none; transition: var(--transition); }
.btn-consult:hover { background: var(--amber-bright); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(230, 164, 0, 0.25); }
.nav-bar { background: var(--graphite); height: 48px; }
.nav-bar .container { display: flex; height: 100%; align-items: stretch; gap: 0; }
.nav-bar .nav-item { color: rgba(255, 255, 255, 0.85); font-size: 14px; font-weight: 500; padding: 0 24px; display: flex; align-items: center; position: relative; transition: var(--transition); }
.nav-bar .nav-item:hover { color: var(--amber); background: rgba(255, 255, 255, 0.03); }
.nav-bar .nav-item.active { color: var(--amber); }
.nav-bar .nav-item.active::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--amber); }
.navbar-toggler { display: none; border: none; background: transparent; font-size: 22px; color: var(--graphite); padding: 4px 8px; }
.mobile-nav { display: none; background: var(--graphite); flex-direction: column; padding: 0; }
.mobile-nav .nav-item { color: rgba(255, 255, 255, 0.85); font-size: 14px; padding: 14px 24px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.mobile-nav .nav-item.active { color: var(--amber); border-left: 3px solid var(--amber); background: rgba(255, 255, 255, 0.03); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 600px; max-height: 720px; display: flex; align-items: center; background-image: url('/assets/images/backpic/back-1.webp'); background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(22, 24, 29, 0.92) 0%, rgba(22, 24, 29, 0.5) 60%, rgba(22, 24, 29, 0.15) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 680px; animation: fadeInUp 0.6s ease 0.1s both; }
.hero h1 { font-size: 52px; font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; color: var(--white); margin-bottom: 24px; }
.hero h1 .ng-highlight { color: var(--amber); border-bottom: 3px solid var(--amber); padding-bottom: 4px; }
.hero-sub { font-size: 18px; line-height: 1.7; color: rgba(255, 255, 255, 0.85); margin-bottom: 40px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary-lg { background: var(--amber); color: var(--graphite); font-size: 16px; font-weight: 600; padding: 14px 32px; border-radius: var(--r-sm); border: none; display: inline-flex; align-items: center; gap: 10px; transition: var(--transition); }
.btn-primary-lg:hover { background: var(--amber-bright); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(230, 164, 0, 0.25); color: var(--graphite); }
.btn-outline-lg { background: transparent; color: var(--white); font-size: 16px; font-weight: 600; padding: 14px 32px; border-radius: var(--r-sm); border: 1px solid rgba(255, 255, 255, 0.85); display: inline-flex; align-items: center; gap: 10px; transition: var(--transition); }
.btn-outline-lg:hover { background: var(--graphite); color: var(--white); border-color: var(--graphite); transform: translateY(-2px); }
.scroll-hint { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); color: rgba(255, 255, 255, 0.7); font-size: 20px; animation: bounceDown 2s ease-in-out infinite; }
@keyframes bounceDown { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Stats ===== */
.stats-bar { background: var(--warm-white); padding: 48px 0; border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; padding: 16px 8px; }
.stat-number { font-size: 48px; font-weight: 800; color: var(--graphite); letter-spacing: -0.02em; line-height: 1.2; }
.stat-number span { color: var(--amber); }
.stat-label { font-size: 14px; color: var(--text-sub); margin-top: 8px; }

/* ===== Features ===== */
.features { background: var(--white); padding: 96px 0; }
.features .row { align-items: flex-start; }
.features-left { padding-right: 40px; }
.features-title { font-size: 36px; font-weight: 800; line-height: 1.3; color: var(--text-main); margin-bottom: 20px; }
.features-desc { font-size: 16px; color: var(--text-sub); line-height: 1.8; margin-bottom: 28px; }
.features-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature-item { padding: 24px; border-radius: var(--r-md); border: 1px solid var(--border); background: var(--warm-white); transition: var(--transition); }
.feature-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(230, 164, 0, 0.3); }
.feature-num { font-size: 32px; font-weight: 800; color: rgba(230, 164, 0, 0.35); line-height: 1; margin-bottom: 16px; display: block; }
.feature-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--graphite); display: flex; align-items: center; justify-content: center; color: var(--amber); font-size: 18px; margin-bottom: 16px; }
.feature-item h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; }
.feature-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 0; }

/* ===== Scenarios ===== */
.scenarios { background: var(--warm-white); }
.scenarios .container > .row { align-items: stretch; }
.scenario-main { border-radius: var(--r-lg); overflow: hidden; position: relative; min-height: 420px; background-image: url('/assets/images/coverpic/cover-1.png'); background-size: cover; background-position: center; display: flex; align-items: flex-end; }
.scenario-main .overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(22, 24, 29, 0.1) 0%, rgba(22, 24, 29, 0.75) 100%); }
.scenario-main-content { position: relative; z-index: 2; padding: 40px; color: var(--white); }
.scenario-main-content h3 { font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.scenario-main-content p { font-size: 14px; opacity: 0.85; margin-bottom: 16px; max-width: 400px; }
.scenario-tag { display: inline-block; background: rgba(230, 164, 0, 0.2); color: var(--amber-bright); border: 1px solid rgba(230, 164, 0, 0.5); font-size: 12px; padding: 4px 12px; border-radius: 20px; margin-right: 8px; }
.scenario-side { background: var(--white); border-radius: var(--r-lg); border: 1px solid var(--border); padding: 36px; display: flex; flex-direction: column; justify-content: space-between; }
.scenario-side .divider { width: 40px; height: 3px; background: var(--amber); margin: 20px 0; border-radius: 2px; }
.scenario-item-mini { margin-bottom: 20px; }
.scenario-item-mini:last-child { margin-bottom: 0; }
.scenario-item-mini h4 { font-size: 16px; font-weight: 700; color: var(--text-main); margin-bottom: 6px; }
.scenario-item-mini p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.scenario-item-mini .mini-tag { display: inline-block; font-size: 12px; color: var(--amber); border: 1px solid rgba(230, 164, 0, 0.4); border-radius: 4px; padding: 2px 10px; margin-top: 8px; background: rgba(230, 164, 0, 0.05); }

/* ===== Timeline ===== */
.timeline-section { background: var(--white); }
.timeline { position: relative; padding-left: 40px; max-width: 800px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.timeline-item { position: relative; padding-bottom: 48px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ""; position: absolute; left: -36px; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--amber); border: 3px solid var(--white); box-shadow: 0 0 0 2px var(--amber); transition: var(--transition); }
.timeline-item:hover::before { box-shadow: 0 0 0 4px var(--amber), 0 0 20px rgba(230, 164, 0, 0.5); transform: scale(1.15); }
.timeline-date { font-size: 13px; font-weight: 600; color: var(--amber); letter-spacing: 0.03em; margin-bottom: 6px; display: block; }
.timeline-item h3 { font-size: 20px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
.timeline-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; max-width: 600px; margin-bottom: 12px; }
.timeline-item .divider { width: 60px; height: 1px; background: var(--border); }

/* ===== Pricing ===== */
.pricing-section { background: var(--warm-white); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.pricing-card { background: var(--white); border-radius: var(--r-lg); border: 1px solid var(--border); padding: 36px 32px; box-shadow: var(--shadow-sm); transition: var(--transition); display: flex; flex-direction: column; }
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.pricing-card.featured { background: var(--graphite); color: var(--white); border-color: var(--graphite); box-shadow: var(--shadow-lg); transform: scale(1.02); position: relative; }
.pricing-card.featured:hover { transform: translateY(-6px) scale(1.02); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--amber); color: var(--graphite); font-size: 12px; font-weight: 700; padding: 4px 20px; border-radius: 20px; letter-spacing: 0.05em; }
.pricing-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.pricing-card.featured .pricing-name { color: var(--amber); }
.pricing-price { font-size: 42px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 4px; }
.pricing-price small { font-size: 14px; font-weight: 400; color: var(--text-sub); }
.pricing-card.featured .pricing-price small { color: rgba(255, 255, 255, 0.6); }
.pricing-desc { font-size: 14px; color: var(--text-sub); margin-bottom: 24px; }
.pricing-card.featured .pricing-desc { color: rgba(255, 255, 255, 0.7); }
.pricing-list { list-style: none; padding: 0; margin: 0 0 32px; flex-grow: 1; }
.pricing-list li { font-size: 14px; color: var(--text-main); padding: 12px 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.pricing-card.featured .pricing-list li { color: rgba(255, 255, 255, 0.85); border-bottom-color: rgba(255, 255, 255, 0.1); }
.pricing-list li::before { content: "·"; color: var(--amber); font-size: 22px; font-weight: 800; line-height: 1; }
.btn-pricing { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; border-radius: var(--r-sm); font-size: 14px; font-weight: 600; border: 1px solid var(--graphite); background: transparent; color: var(--graphite); transition: var(--transition); }
.btn-pricing:hover { background: var(--graphite); color: var(--white); }
.btn-pricing-featured { background: var(--amber); color: var(--graphite); border: none; padding: 12px 28px; border-radius: var(--r-sm); font-size: 14px; font-weight: 600; transition: var(--transition); }
.btn-pricing-featured:hover { background: var(--amber-bright); box-shadow: 0 4px 16px rgba(230, 164, 0, 0.25); }

/* ===== News ===== */
.news-section { background: var(--warm-white); }
.news-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; }
.news-header .view-all { font-size: 14px; color: var(--text-sub); display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.news-header .view-all:hover { color: var(--amber); }
.news-header .view-all i { transition: transform 0.25s; }
.news-header .view-all:hover i { transform: translateX(4px); }
.news-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-sm); height: 100%; transition: var(--transition); }
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: rgba(230, 164, 0, 0.3); }
.news-card-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: linear-gradient(135deg, #eaeae6, #d5d5d0); }
.news-card-cover img { width: 100%; height: 100%; object-fit: cover; }
.news-badge { position: absolute; top: 12px; left: 12px; background: #FFF9EB; color: var(--amber); border: 1px solid rgba(230, 164, 0, 0.4); font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 4px; }
.news-card-body { padding: 20px 20px 24px; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-date { font-size: 13px; color: var(--text-sub); }
.news-card h3 { font-size: 18px; font-weight: 700; color: var(--text-main); line-height: 1.4; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 50px; }
.news-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; min-height: 66px; }
.read-more { font-size: 14px; font-weight: 600; color: var(--text-main); display: inline-flex; align-items: center; gap: 6px; }
.read-more i { transition: transform 0.25s; }
.news-card:hover .read-more { color: var(--amber); }
.news-card:hover .read-more i { transform: translateX(4px); }
.empty-state { border: 2px dashed var(--border); border-radius: var(--r-md); padding: 80px 40px; text-align: center; background: rgba(255, 255, 255, 0.6); }
.empty-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--border); color: var(--text-sub); display: flex; align-items: center; justify-content: center; font-size: 22px; margin: 0 auto 16px; }
.empty-icon i { font-size: 22px; color: #999; }
.empty-state p { font-size: 16px; color: var(--text-sub); }

/* ===== FAQ ===== */
.faq-section { background: var(--white); }
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text-main); transition: var(--transition); }
.faq-question:hover { color: var(--amber); }
.faq-question .faq-icon { font-size: 18px; color: var(--amber); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.active .faq-question { color: var(--amber); }
.faq-item.active .faq-icon { transform: rotate(135deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 400px; padding-top: 12px; }

/* ===== CTA ===== */
.cta-section { background: var(--graphite); position: relative; padding: 96px 0; }
.cta-section::before { content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 80%; height: 2px; background: linear-gradient(90deg, transparent, var(--amber), transparent); }
.cta-content { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-content h2 { font-size: 36px; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.cta-content p { font-size: 16px; color: rgba(255, 255, 255, 0.7); margin-bottom: 32px; }
.btn-cta { background: var(--amber); color: var(--graphite); font-size: 16px; font-weight: 600; padding: 16px 40px; border-radius: var(--r-sm); border: none; display: inline-flex; align-items: center; gap: 10px; transition: var(--transition); }
.btn-cta:hover { background: var(--amber-bright); box-shadow: 0 4px 20px rgba(230, 164, 0, 0.3); transform: translateY(-2px); color: var(--graphite); }

/* ===== Footer ===== */
.site-footer { background: var(--graphite); padding: 64px 0 0; border-top: 2px solid var(--amber); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr 1.5fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo-text { color: var(--white); margin-bottom: 12px; display: block; }
.footer-brand .logo-text span { color: var(--amber); }
.footer-desc { font-size: 14px; color: rgba(255, 255, 255, 0.6); line-height: 1.7; margin-top: 12px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--amber); margin-bottom: 16px; letter-spacing: 0.03em; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255, 255, 255, 0.7); transition: var(--transition); }
.footer-col ul a:hover { color: var(--white); padding-left: 4px; }
.footer-contact li { font-size: 14px; color: rgba(255, 255, 255, 0.7); display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--amber); font-size: 13px; }
.footer-subscribe { display: flex; gap: 8px; margin-top: 12px; }
.footer-subscribe input { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.2); border-radius: var(--r-sm); padding: 12px 16px; font-size: 14px; color: var(--white); width: 100%; outline: none; transition: var(--transition); }
.footer-subscribe input::placeholder { color: rgba(255, 255, 255, 0.35); }
.footer-subscribe input:focus { border-color: var(--amber); box-shadow: 0 0 0 4px rgba(230, 164, 0, 0.12); }
.footer-subscribe button { background: var(--amber); color: var(--graphite); border: none; border-radius: var(--r-sm); font-size: 14px; font-weight: 600; padding: 12px 20px; cursor: pointer; transition: var(--transition); white-space: nowrap; }
.footer-subscribe button:hover { background: var(--amber-bright); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 20px 0; text-align: center; }
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.4); margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 991px) {
  section { padding: 64px 0; }
  .header-actions { display: none; }
  .nav-bar .container { display: none; }
  .navbar-toggler { display: block; }
  .mobile-nav.show { display: flex; }
  .hero { min-height: 520px; }
  .hero h1 { font-size: 40px; }
  .hero-sub { font-size: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .features-list { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-6px); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .scenario-main { min-height: 320px; }
  .scenario-side { padding: 24px; }
}
@media (max-width: 767px) {
  section { padding: 48px 0; }
  .hero { min-height: 480px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 15px; margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .section-title { font-size: 28px; }
  .features-title { font-size: 28px; }
  .features-left { padding-right: 0; margin-bottom: 40px; }
  .timeline { padding-left: 30px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-subscribe { flex-direction: column; }
  .footer-subscribe button { width: 100%; }
}
@media (max-width: 520px) {
  .stat-number { font-size: 32px; }
  .hero h1 { font-size: 30px; }
  .btn-primary-lg, .btn-outline-lg { padding: 12px 24px; font-size: 14px; width: 100%; justify-content: center; }
  .hero-actions { flex-direction: column; width: 100%; padding: 0 24px; }
  .news-card-body { padding: 16px; }
  .section-title { font-size: 24px; }
}

/* roulang page: article */
:root{
  --graphite:#16181D;
  --graphite-light:#23262B;
  --gold:#E6A400;
  --gold-hover:#FFC21A;
  --warm-white:#F5F5F1;
  --border:#E0E0DB;
  --text-primary:#1F2328;
  --text-secondary:#6B7280;
  --white:#FFFFFF;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --shadow-sm:0 2px 8px rgba(22,24,29,0.04);
  --shadow-hover:0 12px 32px rgba(22,24,29,0.10);
  --transition:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  background:var(--warm-white);
  color:var(--text-primary);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--gold);}
img{max-width:100%;height:auto;}
ul,ol{list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.container-lg{max-width:960px;padding-left:24px;padding-right:24px;margin:0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 32px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:var(--transition);cursor:pointer;border:none;
}
.btn:focus, .btn:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
.btn-primary-solid{
  background:var(--gold);color:var(--graphite);font-weight:600;
}
.btn-primary-solid:hover{
  background:var(--gold-hover);color:var(--graphite);
  transform:translateY(-2px);
  box-shadow:0 4px 16px rgba(230,164,0,0.25);
}
.btn-primary-solid:active{transform:translateY(0);filter:brightness(0.95);}
.btn-outline-light{
  background:transparent;border:1px solid rgba(255,255,255,0.85);color:#fff;
}
.btn-outline-light:hover{
  background:var(--graphite);border-color:var(--graphite);color:#fff;
}
.btn-outline-dark{
  background:transparent;border:1px solid var(--graphite);color:var(--graphite);
}
.btn-outline-dark:hover{
  background:var(--graphite);color:#fff;border-color:var(--graphite);
}
.site-header{
  position:sticky;top:0;z-index:1000;
  box-shadow:0 2px 12px rgba(22,24,29,0.08);
  background:var(--white);
}
.header-top{
  background:var(--white);
  height:64px;
  border-bottom:1px solid var(--border);
}
.header-top .container{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;gap:24px;
}
.logo{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;background:var(--graphite);
  color:var(--gold);border-radius:8px;
  font-size:14px;font-weight:800;letter-spacing:0.02em;
}
.logo-text{
  font-size:18px;font-weight:800;color:var(--text-primary);
  letter-spacing:-0.01em;
}
.logo:hover .logo-text{color:var(--gold);}
.header-actions{
  display:flex;align-items:center;gap:20px;flex:1;justify-content:flex-end;
}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:var(--warm-white);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:8px 16px;
  width:260px;
  transition:border-color var(--transition), box-shadow var(--transition);
}
.header-search i{color:var(--text-secondary);font-size:14px;}
.header-search input{
  border:none;outline:none;background:transparent;
  font-size:14px;color:var(--text-primary);width:100%;
}
.header-search:focus-within{
  border-color:var(--gold);
  box-shadow:0 0 0 4px rgba(230,164,0,0.12);
}
.header-phone{
  font-size:14px;font-weight:600;color:var(--text-primary);
  display:flex;align-items:center;gap:6px;white-space:nowrap;
}
.header-phone i{color:var(--gold);}
.btn-consult{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--gold);color:var(--graphite);
  border-radius:var(--radius-sm);
  padding:10px 22px;font-size:14px;font-weight:600;
  transition:var(--transition);white-space:nowrap;
}
.btn-consult:hover{
  background:var(--gold-hover);color:var(--graphite);
  transform:translateY(-1px);
  box-shadow:0 4px 14px rgba(230,164,0,0.25);
}
.navbar-toggler{
  display:none;background:var(--graphite);border:none;
  width:42px;height:42px;border-radius:var(--radius-sm);
  color:#fff;font-size:18px;cursor:pointer;
  align-items:center;justify-content:center;
  transition:var(--transition);
}
.navbar-toggler:hover{background:var(--gold);color:var(--graphite);}
.nav-bar{
  background:var(--graphite);
  height:48px;
}
.nav-bar .container{
  display:flex;align-items:center;gap:4px;height:100%;
  padding-left:16px;padding-right:16px;
}
.nav-item{
  display:inline-flex;align-items:center;justify-content:center;
  padding:0 22px;height:48px;
  color:rgba(255,255,255,0.75);
  font-size:14px;font-weight:500;letter-spacing:0.02em;
  border-bottom:2px solid transparent;
  transition:color var(--transition), background var(--transition), border-color var(--transition);
  text-align:center;white-space:nowrap;
}
.nav-item:hover{
  color:var(--gold);
  background:rgba(255,255,255,0.03);
}
.nav-item.active{
  color:var(--gold);
  border-bottom-color:var(--gold);
  font-weight:600;
}
.mobile-nav{
  display:none;
  background:var(--graphite);
  padding:8px 0;
}
.mobile-nav .nav-item{
  display:block;
  width:100%;
  height:44px;
  padding:0 24px;
  border-left:3px solid transparent;
  border-bottom:none;
  text-align:left;
  color:rgba(255,255,255,0.75);
}
.mobile-nav .nav-item:hover{
  color:var(--gold);background:rgba(255,255,255,0.03);
}
.mobile-nav .nav-item.active{
  color:var(--gold);
  border-left-color:var(--gold);
  border-bottom:none;
  font-weight:600;
}
.mobile-nav.open{display:block;}
.article-main{
  background:var(--warm-white);
  padding:48px 0 80px;
  min-height:60vh;
}
.article-wrapper{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:56px clamp(24px, 5vw, 64px);
  max-width:960px;
  margin:0 auto;
}
.breadcrumb-wrap{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-secondary);
  margin-bottom:24px;
}
.breadcrumb-wrap a{
  color:var(--text-secondary);
}
.breadcrumb-wrap a:hover{color:var(--gold);}
.breadcrumb-wrap .sep{color:var(--border);}
.breadcrumb-wrap .current{
  color:var(--text-primary);font-weight:500;
  max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-header{
  margin-bottom:32px;
  border-bottom:1px solid var(--border);
  padding-bottom:28px;
}
.article-header-meta{
  display:flex;align-items:center;gap:12px;
  flex-wrap:wrap;
  margin-bottom:16px;
}
.article-category-badge{
  display:inline-block;
  padding:5px 14px;
  border:1px solid var(--gold);
  border-radius:4px;
  background:#FFF9EB;
  color:var(--gold);
  font-size:12px;font-weight:600;letter-spacing:0.08em;
}
.article-header-meta-divider{
  width:4px;height:4px;border-radius:50%;background:var(--border);
}
.article-header-date{
  font-size:13px;color:var(--text-secondary);
  display:flex;align-items:center;gap:6px;
}
.article-header-date i{color:var(--gold);font-size:13px;}
.article-header-readtime{
  font-size:13px;color:var(--text-secondary);
  display:flex;align-items:center;gap:6px;
}
.article-header-readtime i{color:var(--gold);font-size:13px;}
.article-header h1{
  font-size:36px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:-0.02em;
  color:var(--text-primary);
  margin:0;
  max-width:100%;
  word-break:break-word;
}
.article-featured{
  margin-bottom:36px;
  border-radius:var(--radius-md);
  overflow:hidden;
}
.article-featured img{
  width:100%;
  max-height:480px;
  object-fit:cover;
  border-radius:var(--radius-md);
  display:block;
}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.8;
  color:#374151;
  word-break:break-word;
}
.article-body h2{
  font-size:24px;font-weight:700;
  margin:40px 0 16px;
  color:var(--text-primary);
  letter-spacing:-0.01em;
}
.article-body h3{
  font-size:20px;font-weight:600;
  margin:32px 0 12px;
  color:var(--text-primary);
}
.article-body h4{
  font-size:17px;font-weight:600;
  margin:28px 0 12px;
  color:var(--text-primary);
}
.article-body p{
  margin-bottom:24px;
}
.article-body a{
  color:var(--gold);font-weight:500;
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body a:hover{color:var(--gold-hover);}
.article-body blockquote{
  border-left:3px solid var(--gold);
  background:var(--warm-white);
  padding:20px 24px;
  margin:24px 0;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-secondary);
  font-size:15px;
}
.article-body ul{
  list-style:disc;
  padding-left:22px;
  margin-bottom:24px;
}
.article-body ul li{
  margin-bottom:8px;
  padding-left:6px;
}
.article-body ol{
  list-style:decimal;
  padding-left:22px;
  margin-bottom:24px;
}
.article-body ol li{
  margin-bottom:8px;
  padding-left:6px;
}
.article-body img{
  max-width:100%;
  border-radius:var(--radius-md);
  margin:24px 0;
  display:block;
}
.article-body pre{
  background:var(--warm-white);
  border-radius:var(--radius-md);
  padding:16px 20px;
  overflow-x:auto;
  margin:24px 0;
  font-size:14px;
  line-height:1.6;
  color:var(--text-primary);
}
.article-body pre code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  background:transparent;
  border:none;
  color:inherit;
}
.article-body code{
  background:var(--warm-white);
  border-radius:4px;
  padding:2px 6px;
  font-size:14px;
  color:var(--graphite);
}
.article-body table{
  width:100%;
  background:var(--warm-white);
  border-radius:var(--radius-md);
  padding:16px;
  margin:24px 0;
  border-collapse:collapse;
  overflow:hidden;
}
.article-body table th{
  font-weight:700;color:var(--text-primary);text-align:left;
  padding:8px 12px;border-bottom:2px solid var(--border);font-size:15px;
}
.article-body table td{
  padding:8px 12px;
  border-bottom:1px solid var(--border);
  font-size:14px;
  color:#4B5563;
}
.article-body table tr:last-child td{border-bottom:none;}
.article-body hr{
  border:none;
  border-top:1px solid var(--border);
  margin:36px 0;
}
.article-tags{
  max-width:760px;
  margin:36px auto 0;
  padding-top:24px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.article-tags-label{
  font-size:13px;font-weight:600;color:var(--text-secondary);
  margin-right:4px;
}
.article-tag{
  display:inline-block;
  padding:6px 14px;
  border:1px solid var(--gold);
  border-radius:var(--radius-sm);
  color:var(--gold);
  font-size:13px;font-weight:500;
  transition:var(--transition);
  background:#FFF9EB;
}
.article-tag:hover{
  background:var(--gold);
  color:var(--graphite);
}
.article-empty{
  max-width:600px;
  margin:0 auto;
  text-align:center;
  padding:80px 20px;
}
.empty-icon{
  width:72px;height:72px;
  border-radius:var(--radius-md);
  background:var(--warm-white);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 24px;
  font-size:28px;color:var(--text-secondary);
}
.article-empty p{
  font-size:17px;
  color:var(--text-secondary);
  margin-bottom:24px;
}
.related-section{
  margin-top:56px;
  padding-top:40px;
  border-top:1px solid var(--border);
}
.related-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:28px;
  gap:16px;
  flex-wrap:wrap;
}
.related-header h2{
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  letter-spacing:-0.01em;
  margin:0;
}
.related-header .back-link{
  font-size:13px;
  font-weight:600;
  color:var(--text-secondary);
  transition:var(--transition);
  position:relative;
}
.related-header .back-link::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:0;height:1px;background:var(--gold);
  transition:width var(--transition);
}
.related-header .back-link:hover::after{width:100%;}
.related-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  transition:var(--transition);
  overflow:hidden;
  display:block;
  height:100%;
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:transparent;
}
.related-cover{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,#f0f0ec,#e5e5df);
}
.related-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 0.45s ease;
}
.related-card:hover .related-cover img{
  transform:scale(1.04);
}
.related-card-body{
  padding:16px 18px 20px;
}
.related-card-body h3{
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-primary);
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-date{
  font-size:13px;color:var(--text-secondary);
  display:flex;align-items:center;gap:6px;
}
.related-date i{
  color:var(--gold);font-size:12px;
}
.related-empty{
  grid-column:1/-1;
  text-align:center;
  padding:40px 20px;
  color:var(--text-secondary);
  font-size:14px;
}
.site-footer{
  background:var(--graphite);
  color:rgba(255,255,255,0.8);
  border-top:2px solid var(--gold);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.9fr 1fr;
  gap:48px;
  padding:64px 0 40px;
}
.footer-brand .logo-text{
  color:#fff;
  font-size:17px;
}
.footer-desc{
  font-size:14px;
  color:rgba(255,255,255,0.6);
  line-height:1.7;
  margin-top:14px;
  max-width:320px;
}
.footer-col h4{
  color:var(--gold);
  font-size:14px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,0.7);
  transition:var(--transition);
}
.footer-col ul a:hover{
  color:#fff;
  padding-left:3px;
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,0.7);
}
.footer-contact i{
  color:var(--gold);
  font-size:13px;
  width:18px;
  text-align:center;
}
.footer-subscribe{
  display:flex;
  gap:8px;
  margin-top:16px;
}
.footer-subscribe input{
  flex:1;
  padding:12px 16px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.2);
  border-radius:var(--radius-sm);
  color:#fff;
  font-size:14px;
  outline:none;
  transition:var(--transition);
}
.footer-subscribe input::placeholder{color:rgba(255,255,255,0.4);}
.footer-subscribe input:focus{
  border-color:var(--gold);
  box-shadow:0 0 0 4px rgba(230,164,0,0.15);
}
.footer-subscribe button{
  background:var(--gold);
  color:var(--graphite);
  border:none;
  padding:12px 24px;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  transition:var(--transition);
  white-space:nowrap;
}
.footer-subscribe button:hover{
  background:var(--gold-hover);
  transform:translateY(-2px);
  box-shadow:0 4px 16px rgba(230,164,0,0.3);
}
.footer-subscribe button:focus{
  outline:2px solid var(--gold-hover);
  outline-offset:2px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  padding:20px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:12px;
  color:rgba(255,255,255,0.4);
  margin:0;
}
@media (max-width:1199px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:36px;
  }
}
@media (max-width:991px){
  .header-top{
    height:auto;
    min-height:64px;
  }
  .header-actions{
    display:none;
  }
  .navbar-toggler{
    display:inline-flex;
  }
  .nav-bar{
    display:none;
  }
  .mobile-nav{
    display:none;
  }
  .mobile-nav.open{
    display:block;
  }
  .article-main{
    padding:28px 0 56px;
  }
  .article-wrapper{
    padding:32px 24px;
    border-radius:var(--radius-md);
  }
  .article-header h1{
    font-size:28px;
  }
}
@media (max-width:767px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
    padding:48px 0 32px;
  }
  .article-header h1{
    font-size:24px;
  }
  .article-header-meta{
    gap:8px;
  }
  .article-header-date,
  .article-header-readtime{
    font-size:12px;
  }
  .related-header h2{
    font-size:19px;
  }
  .footer-subscribe{
    flex-direction:column;
  }
  .footer-subscribe button{
    width:100%;
  }
}
@media (max-width:520px){
  .logo-text{
    font-size:16px;
  }
  .logo-mark{
    width:34px;height:34px;font-size:12px;
  }
  .article-wrapper{
    padding:24px 16px;
  }
  .article-body h2{
    font-size:20px;
  }
  .article-body h3{
    font-size:18px;
  }
  .related-header{
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #16181D;
  --primary-light: #23262B;
  --accent: #E6A400;
  --accent-hover: #FFC21A;
  --bg: #F5F5F1;
  --surface: #FFFFFF;
  --border: #E0E0DB;
  --text: #1F2328;
  --text-muted: #6B7280;
  --white: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(22,24,29,0.04);
  --shadow-md: 0 12px 32px rgba(22,24,29,0.10);
  --shadow-btn: 0 4px 16px rgba(230,164,0,0.25);
  --section-padding: 96px;
  --font-family: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }
i { font-style: normal; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.row { --bs-gutter-x: 2rem; }

/* 按钮体系 */
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: none;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-main:hover {
  background: var(--accent-hover);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn);
}
.btn-main:active { filter: brightness(0.95); transform: translateY(0); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.85);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-outline:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-outline-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 30px;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22,24,29,0.12);
}

/* 导航 */
.site-header { background: var(--surface); box-shadow: 0 1px 0 var(--border); position: sticky; top: 0; z-index: 1000; }
.header-top { height: 64px; border-bottom: 1px solid var(--border); background: var(--white); }
.header-top .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--primary);
  font-size: 15px;
  font-weight: 800;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  letter-spacing: -0.02em;
}
.logo-text { font-size: 18px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 20px; }
.header-search { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0 14px; height: 38px; gap: 8px; }
.header-search i { color: var(--text-muted); font-size: 14px; }
.header-search input { border: none; background: transparent; font-size: 14px; color: var(--text); width: 140px; outline: none; }
.header-phone { font-size: 14px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.header-phone i { color: var(--accent); }
.btn-consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 8px;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
}
.btn-consult:hover { background: var(--accent); color: var(--primary); transform: translateY(-1px); }
.nav-bar { background: var(--primary); height: 48px; }
.nav-bar .container { display: flex; align-items: center; height: 100%; gap: 0; }
.nav-item {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 24px;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}
.nav-item:hover { color: var(--accent-hover); background: rgba(255,255,255,0.03); }
.nav-item.active { color: var(--accent-hover); }
.nav-item.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
}
.navbar-toggler {
  display: none;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 22px;
  cursor: pointer;
  padding: 6px 10px;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--primary);
  padding: 8px 0;
}
.mobile-nav .nav-item {
  height: 44px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  position: relative;
}
.mobile-nav .nav-item.active { color: var(--accent-hover); }
.mobile-nav .nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}
.mobile-nav.open { display: flex; }

/* 分类页横幅 */
.page-banner {
  position: relative;
  background: linear-gradient(90deg, rgba(22,24,29,0.92) 0%, rgba(22,24,29,0.55) 55%, rgba(22,24,29,0.25) 100%), url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  padding: 72px 0 64px;
  color: var(--white);
  min-height: 300px;
  display: flex;
  align-items: center;
}
.breadcrumb-nav { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.65); margin-bottom: 18px; flex-wrap: wrap; }
.breadcrumb-nav a { color: rgba(255,255,255,0.65); }
.breadcrumb-nav a:hover { color: var(--accent-hover); }
.breadcrumb-nav .sep { opacity: 0.5; }
.breadcrumb-nav .current { color: rgba(255,255,255,0.95); }
.page-banner h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--white);
}
.page-banner h1 .accent-text { color: var(--accent); }
.banner-desc { font-size: 16px; color: rgba(255,255,255,0.85); max-width: 640px; line-height: 1.8; margin-bottom: 0; }

/* 内容方向 */
.direction-section { padding: var(--section-padding) 0; background: var(--bg); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(230,164,0,0.4);
  background: rgba(230,164,0,0.06);
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
}
.section-head h2 { font-size: 36px; font-weight: 800; letter-spacing: -0.01em; color: var(--text); margin-bottom: 16px; }
.section-head p { font-size: 15px; color: var(--text-muted); line-height: 1.8; }
.direction-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.direction-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.direction-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.direction-card:hover {
  border-color: rgba(230,164,0,0.4);
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}
.direction-card:hover::before { transform: scaleX(1); }
.direction-icon {
  width: 52px;
  height: 52px;
  background: rgba(230,164,0,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 22px;
  margin-bottom: 20px;
}
.direction-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.direction-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 0; }
.direction-num {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 28px;
  font-weight: 800;
  color: rgba(230,164,0,0.16);
  line-height: 1;
  pointer-events: none;
}

/* 适用场景 */
.scene-section { padding: var(--section-padding) 0; background: #ECECE7; }
.scene-wrap { display: grid; grid-template-columns: 1.6fr 1fr; gap: 28px; align-items: stretch; }
.scene-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 380px;
  background: var(--primary);
  display: flex;
  align-items: flex-end;
}
.scene-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.scene-main-content { position: relative; z-index: 2; padding: 40px; color: var(--white); }
.scene-main-content .scene-label { font-size: 12px; font-weight: 600; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; margin-bottom: 12px; display: block; }
.scene-main-content h3 { font-size: 26px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.scene-main-content p { font-size: 14px; color: rgba(255,255,255,0.85); max-width: 480px; margin-bottom: 16px; line-height: 1.8; }
.scene-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.scene-tags .tag {
  border: 1px solid rgba(255,255,255,0.5);
  color: rgba(255,255,255,0.9);
  padding: 3px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}
.scene-side {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.scene-side h4 { font-size: 18px; font-weight: 700; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); color: var(--text); }
.scene-list { display: flex; flex-direction: column; gap: 0; }
.scene-list .scene-item { padding: 16px 0; border-bottom: 1px solid #F0F0EA; display: flex; gap: 14px; align-items: flex-start; }
.scene-list .scene-item:last-child { border-bottom: none; }
.scene-item .scene-idx { color: var(--accent); font-weight: 700; font-size: 15px; flex-shrink: 0; margin-top: 2px; }
.scene-item .scene-item-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.scene-item .scene-item-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* 服务流程 */
.process-section { padding: var(--section-padding) 0; background: var(--bg); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.process-step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px 30px;
  transition: all 0.25s ease;
}
.process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.process-step .step-num { font-size: 40px; font-weight: 800; color: rgba(230,164,0,0.2); display: block; margin-bottom: 14px; line-height: 1; }
.process-step .step-icon { color: var(--accent); font-size: 20px; margin-bottom: 12px; display: inline-flex; }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.process-step p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 0; }
.process-arrow {
  position: absolute;
  top: 50%;
  right: -18px;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 16px;
  z-index: 3;
  pointer-events: none;
}
.process-step:last-child .process-arrow { display: none; }

/* 数据优势 */
.stats-section { padding: 72px 0; background: var(--primary); position: relative; overflow: hidden; }
.stats-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item { padding: 8px 16px; }
.stat-num { font-size: 42px; font-weight: 800; color: var(--white); line-height: 1.2; letter-spacing: -0.01em; }
.stat-num span { color: var(--accent); }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.6); margin-top: 8px; }
.stats-grid .stat-item + .stat-item { border-left: 1px solid rgba(255,255,255,0.1); }

/* FAQ */
.faq-section { padding: var(--section-padding) 0; background: var(--bg); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.accordion { --bs-accordion-bg: transparent; --bs-accordion-border-width: 0; --bs-accordion-border-color: transparent; --bs-accordion-btn-focus-box-shadow: none; --bs-accordion-active-bg: transparent; --bs-accordion-active-color: var(--accent); }
.accordion-item {
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid var(--border) !important;
  border-radius: 0 !important;
}
.accordion-button {
  background: transparent;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  padding: 20px 40px 20px 0;
  box-shadow: none;
  transition: color 0.25s ease;
}
.accordion-button:hover { color: var(--accent); }
.accordion-button:not(.collapsed) { color: var(--accent); }
.accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\2b";
  font-size: 18px;
  color: var(--text-muted);
  transition: transform 0.3s ease, color 0.25s ease;
  width: auto;
  height: auto;
  background-size: auto;
}
.accordion-button:not(.collapsed)::after {
  background-image: none;
  content: "\f068";
  color: var(--accent);
  transform: rotate(0deg);
}
.accordion-body { padding: 0 40px 24px 0; }
.accordion-body p { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 0; }

/* CTA */
.cta-section { padding: 20px 0 72px; background: var(--bg); }
.cta-bar {
  background: #ECECE7;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-bar h3 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.cta-bar p { font-size: 14px; color: var(--text-muted); margin-bottom: 0; }
.cta-bar .btn-outline-dark { flex-shrink: 0; }

/* 页脚 */
.site-footer { background: var(--primary); color: var(--white); position: relative; }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: var(--accent); }
.footer-grid { padding: 64px 0 40px; display: grid; grid-template-columns: 1.5fr 0.8fr 1fr 1.2fr; gap: 48px; }
.footer-brand .logo-text { font-size: 20px; font-weight: 800; color: var(--white); letter-spacing: -0.02em; }
.footer-brand .logo-text span { color: var(--accent); }
.footer-desc { font-size: 14px; color: rgba(255,255,255,0.55); margin-top: 16px; line-height: 1.8; max-width: 320px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--accent); margin-bottom: 20px; letter-spacing: 0.04em; }
.footer-col ul { padding-left: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 14px; transition: color 0.25s ease, padding-left 0.25s ease; }
.footer-col ul li a:hover { color: var(--white); padding-left: 2px; }
.footer-contact li { color: rgba(255,255,255,0.65); font-size: 14px; margin-bottom: 10px; display: flex; align-items: flex-start; gap: 8px; }
.footer-contact li i { color: var(--accent); margin-top: 3px; }
.footer-subscribe { display: flex; gap: 10px; }
.footer-subscribe input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--white);
  font-size: 14px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.footer-subscribe input::placeholder { color: rgba(255,255,255,0.35); }
.footer-subscribe input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(230,164,0,0.15); }
.footer-subscribe button {
  background: var(--accent);
  border: none;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.25s ease;
  white-space: nowrap;
}
.footer-subscribe button:hover { background: var(--accent-hover); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

/* 响应式 */
@media (max-width: 1199px) {
  .direction-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-arrow { display: none; }
  .scene-wrap { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .stats-grid .stat-item + .stat-item { border-left: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 991px) {
  :root { --section-padding: 64px; }
  .header-actions { display: none; }
  .navbar-toggler { display: inline-flex; }
  .nav-bar { display: none; }
  .header-top { border-bottom: none; }
  .page-banner h1 { font-size: 34px; }
  .section-head h2 { font-size: 30px; }
  .cta-bar { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767px) {
  .direction-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .scene-main { min-height: 300px; }
  .scene-main-content { padding: 28px 24px; }
  .page-banner { padding: 56px 0 48px; }
  .page-banner h1 { font-size: 28px; }
  .section-head h2 { font-size: 26px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .stat-num { font-size: 34px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-bar { padding: 32px 24px; }
  .cta-bar h3 { font-size: 20px; }
}
@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .logo-text { font-size: 16px; }
  .logo-mark { width: 34px; height: 34px; font-size: 13px; }
  .footer-subscribe { flex-direction: column; }
  .footer-subscribe button { width: 100%; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeInUp 0.6s ease both; animation-delay: 0.1s; }