/* roulang page: index */
:root {
  --color-primary: #E63946;
  --color-primary-dark: #CD2C37;
  --color-secondary: #1A6B50;
  --color-accent: #F4A261;
  --color-bg-dark: #0F1620;
  --color-bg-dark-soft: #17212E;
  --color-bg-light: #F6F5F1;
  --color-bg-gray: #F1EFEB;
  --color-surface: #FFFFFF;
  --color-border: #E5E3DE;
  --color-text-primary: #21262B;
  --color-text-secondary: #5F6B76;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --shadow-static: 0 2px 12px rgba(15, 22, 32, 0.06);
  --shadow-hover: 0 12px 32px rgba(15, 22, 32, 0.12);
  --transition-base: all .25s ease;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-sans); color: var(--color-text-primary); background: var(--color-surface); line-height: 1.75; letter-spacing: 0.02em; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition-base); }
a:hover { color: var(--color-primary-dark); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-x.grid-margin-x > .cell { margin-bottom: 24px; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ===== 按钮系统 ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 36px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600; letter-spacing: 0.03em; border: 1.5px solid transparent; cursor: pointer; transition: var(--transition-base); text-align: center; line-height: 1; }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3); }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35); }
.btn-primary:active { transform: translateY(2px); box-shadow: none; }
.btn-outline { background: transparent; border-color: rgba(255, 255, 255, 0.7); color: #fff; }
.btn-outline:hover { background: rgba(230, 57, 70, 0.12); border-color: var(--color-primary); color: #fff; }
.btn-outline-dark { background: transparent; border-color: var(--color-text-primary); color: var(--color-text-primary); }
.btn-outline-dark:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(230, 57, 70, 0.06); }
.btn-sm { height: 36px; padding: 0 20px; font-size: 14px; }
.btn-lg { height: 54px; padding: 0 48px; font-size: 17px; }

/* ===== 标签与徽章 ===== */
.tag { display: inline-flex; align-items: center; padding: 5px 14px; border-radius: var(--radius-tag); font-size: 13px; line-height: 1.4; background: rgba(230, 57, 70, 0.08); color: var(--color-primary); font-weight: 500; }
.tag-green { background: rgba(26, 107, 80, 0.12); color: var(--color-secondary); }
.tag-gold { background: rgba(244, 162, 97, 0.15); color: #B26A29; }
.badge-category { display: inline-block; padding: 4px 14px; border-radius: var(--radius-tag); background: var(--color-primary); color: #fff; font-size: 12px; font-weight: 500; letter-spacing: 0.02em; }

/* ===== 双层导航 ===== */
.site-header { width: 100%; z-index: 100; }
.header-top { background: var(--color-surface); height: 64px; border-bottom: 1px solid var(--color-border); }
.header-top .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 100%; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo { width: 42px; height: 42px; border-radius: 10px; background: var(--color-bg-dark); display: flex; align-items: center; justify-content: center; position: relative; flex-shrink: 0; }
.brand-logo::before { content: ""; width: 18px; height: 18px; border: 3px solid var(--color-primary); border-radius: 5px; transform: rotate(45deg); border-right-color: transparent; }
.brand-logo::after { content: ""; position: absolute; inset: 12px; border: 2px solid var(--color-accent); border-radius: 50%; opacity: 0.7; }
.brand-name { font-size: 20px; font-weight: 800; color: var(--color-text-primary); white-space: nowrap; letter-spacing: 0.01em; }
.brand-name span { color: var(--color-primary); }
.header-search { display: flex; align-items: center; background: var(--color-bg-light); border: 1px solid var(--color-border); border-radius: 8px; height: 38px; padding: 0 12px; width: 260px; transition: var(--transition-base); }
.header-search:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15); background: #fff; }
.header-search input { border: none; background: transparent; outline: none; font-size: 13px; flex: 1; color: var(--color-text-primary); width: 100%; }
.header-search input::placeholder { color: #9AA3AB; }
.header-search i { color: var(--color-text-secondary); font-size: 14px; margin-right: 8px; }
.header-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.header-cta .btn-sm { height: 36px; padding: 0 20px; }
.header-cta .login-link { font-size: 13px; color: var(--color-text-secondary); }
.header-cta .login-link:hover { color: var(--color-primary); }

.channel-bar { background: var(--color-bg-dark); border-bottom: 3px solid rgba(230, 57, 70, 0.6); position: sticky; top: 0; z-index: 99; }
.channel-tabs { display: flex; align-items: center; gap: 8px; padding: 8px 0; overflow-x: auto; scrollbar-width: none; white-space: nowrap; }
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tab { display: inline-block; padding: 7px 22px; border-radius: var(--radius-tag); font-size: 15px; color: rgba(255, 255, 255, 0.8); transition: var(--transition-base); border: 1.5px solid transparent; }
.channel-tab:hover { background: rgba(230, 57, 70, 0.2); color: #fff; }
.channel-tab.active { background: var(--color-primary); color: #fff; font-weight: 600; }

/* ===== Hero ===== */
.hero { background: linear-gradient(rgba(15, 22, 32, 0.85), rgba(15, 22, 32, 0.65)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; min-height: 640px; display: flex; align-items: center; padding: 80px 0; position: relative; }
.hero .container { position: relative; z-index: 2; }
.hero-title { font-size: clamp(36px, 5vw, 48px); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 20px; }
.hero-title strong { color: var(--color-accent); }
.hero-subtitle { font-size: 18px; line-height: 1.8; color: rgba(255, 255, 255, 0.9); max-width: 580px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; border-top: 1px solid rgba(255, 255, 255, 0.2); padding-top: 32px; margin-top: 16px; }
.stat-item { padding: 8px 4px; }
.stat-num { font-family: var(--font-num); font-size: 32px; font-weight: 700; color: #fff; line-height: 1.2; }
.stat-num small { font-size: 16px; color: var(--color-accent); margin-left: 4px; }
.stat-label { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 4px; }
.hero-panel { display: flex; flex-direction: column; gap: 12px; }
.hero-panel-card { background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 12px; padding: 14px 18px; display: flex; align-items: center; gap: 14px; backdrop-filter: blur(4px); }
.hero-panel-icon { width: 38px; height: 38px; border-radius: 8px; background: rgba(230, 57, 70, 0.2); display: flex; align-items: center; justify-content: center; color: var(--color-accent); font-size: 16px; flex-shrink: 0; }
.hero-panel-text { font-size: 13px; color: rgba(255, 255, 255, 0.9); }
.hero-panel-text strong { display: block; font-size: 14px; color: #fff; margin-bottom: 2px; }

/* ===== 价值主张区 ===== */
.value-strip { background: var(--color-bg-light); padding: 56px 0; border-bottom: 1px solid var(--color-border); }
.value-card { text-align: center; padding: 12px 16px; }
.value-icon { width: 64px; height: 64px; border-radius: 12px; background: rgba(230, 57, 70, 0.08); display: flex; align-items: center; justify-content: center; font-size: 24px; color: var(--color-primary); margin: 0 auto 16px; }
.value-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

/* ===== 功能分组 ===== */
.feature-section { background: var(--color-bg-dark); padding: 72px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; gap: 16px; flex-wrap: wrap; }
.section-head .bar { width: 5px; height: 32px; background: var(--color-primary); border-radius: 3px; display: inline-block; margin-right: 12px; vertical-align: text-bottom; }
.section-title { font-size: 32px; font-weight: 700; color: #fff; line-height: 1.3; }
.section-title .bar { background: var(--color-primary); }
.section-sub { font-size: 15px; color: rgba(255, 255, 255, 0.6); max-width: 420px; }
.feature-card { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-card); padding: 32px 28px; transition: var(--transition-base); height: 100%; display: flex; flex-direction: column; }
.feature-card:hover { background: rgba(255, 255, 255, 0.08); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4); }
.feature-icon { width: 56px; height: 56px; border-radius: 12px; background: rgba(230, 57, 70, 0.15); display: flex; align-items: center; justify-content: center; font-size: 24px; color: var(--color-accent); margin-bottom: 20px; }
.feature-card h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.feature-links { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.feature-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: rgba(255, 255, 255, 0.8); padding: 4px 10px; border: 1px solid rgba(255, 255, 255, 0.15); border-radius: var(--radius-tag); transition: var(--transition-base); }
.feature-link:hover { border-color: var(--color-primary); color: var(--color-accent); }
.feature-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--color-accent); }
.feature-more i { transition: transform .25s ease; }
.feature-more:hover i { transform: translateX(4px); }
.feature-more:hover { color: var(--color-primary); }

/* ===== 使用场景 ===== */
.scenario-section { background: var(--color-bg-light); padding: 72px 0; }
.scenario-block { display: flex; align-items: center; gap: 48px; margin-bottom: 56px; flex-wrap: wrap; }
.scenario-block:last-child { margin-bottom: 0; }
.scenario-info { flex: 1; min-width: 300px; }
.scenario-num { font-family: var(--font-num); font-size: 48px; font-weight: 300; color: var(--color-primary); line-height: 1; opacity: 0.4; margin-bottom: 8px; }
.scenario-info h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; color: var(--color-text-primary); }
.scenario-info p { font-size: 15px; line-height: 1.8; color: var(--color-text-secondary); margin-bottom: 16px; }
.scenario-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.scenario-image { flex: 1; min-width: 300px; }
.scenario-image img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 20px; border: 2px solid #fff; box-shadow: 0 12px 40px rgba(15, 22, 32, 0.12); }
.scenario-block.reverse .scenario-info { order: 2; }
.scenario-block.reverse .scenario-image { order: 1; }

/* ===== 数据背书 ===== */
.proof-section { background: var(--color-bg-dark); padding: 72px 0; position: relative; }
.proof-section::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; }
.data-matrix { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-bottom: 56px; position: relative; }
.matrix-item { text-align: center; padding: 24px 12px; }
.matrix-num { font-family: var(--font-num); font-size: 44px; font-weight: 700; color: var(--color-accent); line-height: 1.2; }
.matrix-num small { font-size: 18px; margin-left: 4px; }
.matrix-label { font-size: 14px; color: rgba(255, 255, 255, 0.7); margin-top: 8px; }
.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; position: relative; }
.case-card { background: rgba(255, 255, 255, 0.05); border-radius: var(--radius-card); padding: 28px; border-left: 4px solid var(--color-primary); transition: var(--transition-base); }
.case-card:hover { background: rgba(255, 255, 255, 0.08); transform: translateY(-4px); }
.case-num { font-family: var(--font-num); font-size: 18px; color: var(--color-accent); margin-bottom: 8px; }
.case-card h3 { font-size: 18px; color: #fff; margin-bottom: 8px; font-weight: 600; }
.case-card p { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.7; margin-bottom: 12px; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.case-tags .tag { background: rgba(244, 162, 97, 0.18); color: var(--color-accent); }

/* ===== 价格区 ===== */
.pricing-section { background: var(--color-bg-light); padding: 72px 0; }
.pricing-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 36px 32px; display: flex; flex-direction: column; position: relative; transition: var(--transition-base); box-shadow: var(--shadow-static); height: 100%; }
.pricing-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.pricing-card.pricing-featured { border: 2px solid var(--color-primary); box-shadow: 0 12px 32px rgba(230, 57, 70, 0.12); transform: scale(1.03); }
.pricing-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: var(--color-bg-dark); font-size: 12px; font-weight: 700; padding: 4px 16px; border-radius: var(--radius-tag); white-space: nowrap; }
.pricing-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.pricing-desc { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 20px; min-height: 40px; }
.pricing-amount { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--color-border); }
.price-num { font-family: var(--font-num); font-size: 48px; font-weight: 700; color: var(--color-text-primary); line-height: 1; }
.price-num small { font-size: 14px; color: var(--color-text-secondary); font-family: var(--font-sans); font-weight: 400; margin-left: 4px; }
.pricing-list { flex: 1; margin-bottom: 24px; }
.pricing-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; padding: 6px 0; color: var(--color-text-secondary); }
.pricing-list li i { color: var(--color-secondary); margin-top: 4px; font-size: 13px; }
.pricing-btn { width: 100%; }
.pricing-featured .pricing-btn { background: var(--color-primary); color: #fff; }
.pricing-featured .pricing-btn:hover { background: var(--color-primary-dark); }

/* ===== CMS最新信息 ===== */
.news-section { background: var(--color-bg-gray); padding: 72px 0; }
.news-section .section-title { color: var(--color-text-primary); }
.news-section .section-sub { color: var(--color-text-secondary); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card { display: flex; gap: 24px; background: var(--color-surface); border-radius: var(--radius-card); padding: 24px 28px; border: 1px solid var(--color-border); transition: var(--transition-base); position: relative; overflow: hidden; }
.news-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--color-primary); transform: scaleY(0); transition: transform .25s ease; transform-origin: bottom; }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: transparent; }
.news-card:hover::before { transform: scaleY(1); }
.news-date { flex-shrink: 0; width: 88px; text-align: center; background: var(--color-bg-light); border-radius: 10px; padding: 10px 4px; align-self: center; }
.news-date .d { font-family: var(--font-num); font-size: 30px; font-weight: 700; color: var(--color-text-primary); line-height: 1; }
.news-date .ym { font-size: 12px; color: var(--color-text-secondary); margin-top: 4px; }
.news-body { flex: 1; }
.news-body .badge-category { margin-bottom: 8px; }
.news-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body h3 a { color: var(--color-text-primary); }
.news-body h3 a:hover { color: var(--color-primary); }
.news-body p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.news-link { font-size: 13px; color: var(--color-primary); font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.news-link i { transition: transform .25s ease; }
.news-link:hover i { transform: translateX(4px); }
.news-more-wrap { text-align: right; margin-top: 24px; }
.news-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--color-surface); border: 1px dashed var(--color-border); border-radius: var(--radius-card); padding: 48px 24px; text-align: center; }
.news-empty i { font-size: 40px; color: #C6C8C4; margin-bottom: 16px; }
.news-empty p { font-size: 15px; color: var(--color-text-secondary); }

/* ===== FAQ ===== */
.faq-section { background: var(--color-surface); padding: 72px 0; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 12px; background: var(--color-surface); transition: var(--transition-base); overflow: hidden; }
.faq-item.active { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(230, 57, 70, 0.08); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 24px; background: transparent; border: none; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--color-text-primary); text-align: left; }
.faq-question i { font-size: 20px; color: var(--color-text-secondary); transition: transform .25s ease; flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(45deg); color: var(--color-primary); }
.faq-answer { padding: 0 24px 20px; font-size: 15px; line-height: 1.8; color: var(--color-text-secondary); display: none; }
.faq-item.active .faq-answer { display: block; }

/* ===== CTA区 ===== */
.cta-section { padding: 64px 0; background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%); text-align: center; }
.cta-section h2 { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.cta-section .btn { background: #fff; color: var(--color-primary); }
.cta-section .btn:hover { background: var(--color-bg-dark); color: #fff; transform: translateY(-2px); }

/* ===== 页脚 ===== */
.site-footer { background: var(--color-bg-dark); color: rgba(255, 255, 255, 0.6); padding-top: 56px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-name span { color: var(--color-accent); }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-top: 14px; color: rgba(255, 255, 255, 0.5); }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255, 255, 255, 0.6); padding: 4px 0; }
.footer-col a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-contact p { font-size: 13px; padding: 4px 0; color: rgba(255, 255, 255, 0.6); }
.footer-contact i { width: 20px; color: var(--color-accent); margin-right: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 16px 0; text-align: center; font-size: 12px; color: rgba(255, 255, 255, 0.4); }
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .hero-title { font-size: 40px; }
  .data-matrix { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 768px) {
  .container { padding: 0 20px; }
  .header-search { width: 180px; }
  .brand-name { font-size: 18px; }
  .hero { min-height: auto; padding: 60px 0; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-panel { margin-top: 32px; }
  .section-title { font-size: 26px; }
  .scenario-block { flex-direction: column; gap: 24px; }
  .scenario-block.reverse .scenario-info { order: 1; }
  .scenario-block.reverse .scenario-image { order: 2; }
  .case-grid { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; gap: 12px; padding: 20px; }
  .news-date { width: 100%; display: flex; gap: 8px; align-items: baseline; justify-content: flex-start; }
  .news-date .d { font-size: 22px; }
  .pricing-card.pricing-featured { transform: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media screen and (max-width: 520px) {
  .header-top { height: auto; padding: 12px 0; }
  .header-top .container { flex-wrap: wrap; gap: 8px; }
  .header-search { width: 100%; order: 3; }
  .header-cta .login-link { display: none; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .stat-num { font-size: 26px; }
  .value-card { padding: 8px 4px; }
  .value-icon { width: 52px; height: 52px; font-size: 20px; }
  .feature-card { padding: 24px 20px; }
  .scenario-image img { aspect-ratio: 16/10; }
  .data-matrix { grid-template-columns: 1fr; }
  .matrix-num { font-size: 36px; }
  .pricing-card { padding: 28px 20px; }
  .faq-question { font-size: 15px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 18px; font-size: 14px; }
  .cta-section h2 { font-size: 24px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --color-primary: #E63946;
  --color-primary-dark: #CD2C37;
  --color-secondary: #1A6B50;
  --color-secondary-dark: #155A42;
  --color-accent: #F4A261;
  --color-bg-dark: #0F1620;
  --color-bg-deep: #0A0E15;
  --color-bg-light: #F6F5F1;
  --color-bg-muted: #F1EFEB;
  --color-surface: #FFFFFF;
  --color-border: #E5E3DE;
  --color-text-primary: #21262B;
  --color-text-secondary: #5F6B76;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 12px rgba(15,22,32,0.06);
  --shadow-hover: 0 12px 32px rgba(15,22,32,0.12);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", Consolas, monospace;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-primary);
  background: var(--color-surface);
  letter-spacing: 0.02em;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ========== 容器与栅格 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-x { margin-left: -16px; margin-right: -16px; }
.grid-x > .cell { padding-left: 16px; padding-right: 16px; }

/* ========== 全局按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 36px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 700;
  border: 1.5px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
  line-height: 1;
  white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: 0 6px 20px rgba(230,57,70,0.32); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 8px rgba(230,57,70,0.24); }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,0.85); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-outline-dark { background: transparent; border-color: var(--color-text-primary); color: var(--color-text-primary); }
.btn-outline-dark:hover { background: rgba(230,57,70,0.08); border-color: var(--color-primary); color: var(--color-primary); }
.btn-sm { height: 36px; padding: 0 22px; font-size: 14px; border-radius: 10px; }

/* ========== 双层导航 ========== */
.site-header { position: sticky; top: 0; z-index: 1000; }
.header-top {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: 64px;
  display: flex;
  align-items: center;
}
.header-top .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: nowrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), #C02634);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 3px 10px rgba(230,57,70,0.28);
}
.brand-logo::before {
  content: "";
  width: 14px; height: 14px;
  border: 2px solid #fff;
  border-radius: 4px;
  display: block;
}
.brand-name { font-size: 20px; font-weight: 800; color: var(--color-text-primary); letter-spacing: 0.5px; }
.brand-name span { color: var(--color-primary); }
.header-search {
  display: flex; align-items: center;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0 14px;
  height: 40px;
  width: 300px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
}
.header-search i { color: var(--color-text-secondary); font-size: 14px; margin-right: 10px; }
.header-search input {
  border: none; outline: none; background: transparent;
  font-size: 13px; color: var(--color-text-primary);
  width: 100%; height: 100%;
}
.header-search input::placeholder { color: #9AA3AC; }
.header-search:focus-within { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(230,57,70,0.15); }
.header-cta { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.login-link { font-size: 14px; color: var(--color-text-secondary); font-weight: 500; }
.login-link:hover { color: var(--color-primary); }
.channel-bar { background: var(--color-bg-dark); border-bottom: 1px solid rgba(255,255,255,0.06); }
.channel-bar .container { display: flex; align-items: center; }
.channel-tabs { display: flex; align-items: center; gap: 8px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; padding: 8px 0; width: 100%; }
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tab {
  display: inline-flex; align-items: center;
  padding: 6px 22px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
}
.channel-tab:hover { background: rgba(230,57,70,0.25); color: #fff; }
.channel-tab.active { background: var(--color-primary); color: #fff; font-weight: 600; }

/* ========== 分类页 Banner ========== */
.category-banner {
  background: linear-gradient(135deg, rgba(10,14,21,0.92), rgba(15,22,32,0.78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 72px 0 56px;
  color: #fff;
  position: relative;
}
.category-breadcrumb { font-size: 13px; color: rgba(255,255,255,0.65); margin-bottom: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.category-breadcrumb a:hover { color: var(--color-primary); }
.category-banner .page-title { font-size: clamp(32px, 5vw, 42px); font-weight: 800; line-height: 1.2; margin-bottom: 14px; }
.category-banner .page-title span { color: var(--color-accent); }
.category-banner .page-subtitle { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.88); max-width: 860px; margin-bottom: 24px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.banner-tags .tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
}
.banner-tags .tag i { color: var(--color-accent); font-size: 12px; }

/* ========== 锚点目录 ========== */
.anchor-nav-wrap {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
  position: sticky;
  top: 112px;
  z-index: 500;
  box-shadow: 0 4px 16px rgba(15,22,32,0.04);
}
.anchor-nav { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; }
.anchor-nav::-webkit-scrollbar { display: none; }
.anchor-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 14px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  background: var(--color-surface);
}
.anchor-link i { font-size: 13px; color: var(--color-primary); }
.anchor-link:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(230,57,70,0.04); }
.anchor-link.active { background: var(--color-bg-dark); border-color: var(--color-bg-dark); color: #fff; }

/* ========== 分类分区通用 ========== */
.category-section { padding: 72px 0; }
.section-title-wrap { margin-bottom: 40px; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.section-title-wrap .section-kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.section-title-wrap .section-kicker::before { content: ""; width: 20px; height: 4px; background: var(--color-primary); border-radius: 4px; display: inline-block; }
.section-title-wrap h2 { font-size: clamp(26px, 3.5vw, 32px); font-weight: 700; line-height: 1.3; color: var(--color-text-primary); }
.section-title-wrap .section-desc { max-width: 540px; font-size: 15px; color: var(--color-text-secondary); line-height: 1.8; }

/* ========== 赛前前瞻卡片 ========== */
.pre-section { background: var(--color-bg-light); }
.info-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  height: 100%;
  border: 1px solid transparent;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.info-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(230,57,70,0.18); }
.info-card .info-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  background: rgba(230,57,70,0.10);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 20px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.info-card:hover .info-icon { background: rgba(230,57,70,0.16); transform: scale(1.05); }
.info-card h3 { font-size: 18px; font-weight: 700; color: var(--color-text-primary); margin-bottom: 10px; }
.info-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.75; }

/* ========== 赛中实时深色区 ========== */
.live-section { background: var(--color-bg-dark); position: relative; }
.live-section::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(230,57,70,0.12), transparent 60%),
              linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
              linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: auto, 40px 40px, 40px 40px;
  pointer-events: none;
}
.live-section .container { position: relative; z-index: 1; }
.live-section .section-title-wrap h2 { color: #fff; }
.live-section .section-title-wrap .section-desc { color: rgba(255,255,255,0.7); }
.live-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-card);
  padding: 36px;
  display: flex;
  gap: 36px;
  align-items: center;
  margin-bottom: 32px;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.live-card:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.18); }
.live-card .live-card-img { flex: 0 0 420px; max-width: 420px; }
.live-card .live-card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 14px; box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.live-card .live-card-body { flex: 1; }
.live-card .live-card-body h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.live-card .live-card-body p { font-size: 15px; color: rgba(255,255,255,0.75); line-height: 1.85; margin-bottom: 18px; }
.live-feature-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.live-feature-tags .tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(230,57,70,0.16);
  color: #fff;
  border: 1px solid rgba(230,57,70,0.3);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
}
.live-feature-tags .tag i { color: var(--color-accent); font-size: 12px; }
.live-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.live-point {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  transition: background 0.25s ease, transform 0.25s ease;
}
.live-point:hover { background: rgba(255,255,255,0.07); transform: translateY(-4px); }
.live-point i { font-size: 26px; color: var(--color-accent); margin-bottom: 12px; display: block; }
.live-point h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.live-point p { font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.6; }

/* ========== 赛后复盘 ========== */
.review-section { background: var(--color-surface); }
.review-grid-wrap { display: flex; gap: 40px; align-items: center; flex-wrap: wrap; }
.review-text { flex: 1; min-width: 300px; }
.review-text .review-num { font-size: 48px; font-weight: 800; color: var(--color-accent); font-family: var(--font-mono); line-height: 1; margin-bottom: 12px; }
.review-text h2 { font-size: 28px; font-weight: 700; margin-bottom: 14px; color: var(--color-text-primary); }
.review-text p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.85; margin-bottom: 20px; }
.review-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.review-list { flex: 1; min-width: 300px; display: flex; flex-direction: column; gap: 16px; }
.review-item {
  display: flex; align-items: flex-start; gap: 16px;
  background: var(--color-bg-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 12px;
  padding: 20px 22px;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.review-item:hover { background: var(--color-surface); box-shadow: var(--shadow-hover); transform: translateX(4px); }
.review-item .review-item-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: rgba(26,107,80,0.12);
  color: var(--color-secondary);
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.review-item h4 { font-size: 16px; font-weight: 700; color: var(--color-text-primary); margin-bottom: 4px; }
.review-item p { font-size: 13.5px; color: var(--color-text-secondary); line-height: 1.6; }

/* ========== 数据服务区 ========== */
.data-section { background: var(--color-bg-deep); padding: 64px 0; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.data-item .data-num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 6px;
}
.data-item .data-label { font-size: 13px; color: rgba(255,255,255,0.65); letter-spacing: 0.05em; }

/* ========== FAQ ========== */
.faq-section { background: var(--color-bg-light); }
.faq-wrap { max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item.active { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(230,57,70,0.08); }
.faq-item-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  min-height: 56px;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-primary);
  gap: 16px;
}
.faq-item-header .faq-toggle {
  font-size: 24px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  transition: transform 0.3s ease, color 0.3s ease;
  font-style: normal;
  font-weight: 300;
  line-height: 1;
}
.faq-item.active .faq-item-header .faq-toggle { transform: rotate(45deg); color: var(--color-primary); }
.faq-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.active .faq-item-body { max-height: 400px; }
.faq-item-body p { padding: 0 22px 20px; font-size: 15px; line-height: 1.8; color: var(--color-text-secondary); }

/* ========== CTA ========== */
.category-cta {
  background: linear-gradient(120deg, var(--color-bg-dark) 0%, #1A2A3A 50%, var(--color-secondary) 130%);
  padding: 64px 0;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.category-cta::before {
  content: "";
  position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.18;
  pointer-events: none;
}
.category-cta .container { position: relative; z-index: 1; }
.category-cta h2 { font-size: clamp(24px, 3.5vw, 30px); font-weight: 800; margin-bottom: 16px; line-height: 1.35; }
.category-cta p { font-size: 15.5px; color: rgba(255,255,255,0.85); max-width: 640px; margin: 0 auto 28px; line-height: 1.8; }

/* ========== 页脚 ========== */
.site-footer { background: var(--color-bg-dark); color: rgba(255,255,255,0.7); padding-top: 60px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.09);
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand .brand-name { color: #fff; font-size: 20px; }
.footer-brand .brand-name span { color: var(--color-primary); }
.footer-brand .brand-logo { box-shadow: none; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-col h4, .footer-contact h4 {
  font-size: 14px; font-weight: 700; color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.footer-col a {
  display: block;
  font-size: 13.5px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 11px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-contact p { font-size: 13.5px; color: rgba(255,255,255,0.6); margin-bottom: 11px; display: flex; gap: 8px; align-items: center; }
.footer-contact i { color: var(--color-accent); font-size: 14px; width: 16px; }
.footer-bottom { padding: 20px 0 24px; text-align: center; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.45); letter-spacing: 0.02em; }

/* ========== 响应式断点 ========== */
@media screen and (max-width: 64rem) {
  .header-search { width: 220px; }
  .live-card { flex-direction: column; align-items: flex-start; }
  .live-card .live-card-img { flex: 0 0 100%; max-width: 100%; }
  .live-points { grid-template-columns: repeat(3, 1fr); }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media screen and (max-width: 40rem) {
  .container { padding: 0 16px; }
  .header-top { height: auto; padding: 12px 0; }
  .header-top .container { flex-wrap: wrap; row-gap: 12px; }
  .header-search { width: 100%; order: 3; }
  .header-cta .btn-sm { padding: 0 16px; font-size: 13px; }
  .brand-name { font-size: 18px; }
  .category-banner { padding: 48px 0 40px; }
  .category-banner .page-title { font-size: 30px; }
  .category-section { padding: 48px 0; }
  .section-title-wrap { flex-direction: column; align-items: flex-start; margin-bottom: 28px; }
  .live-card { padding: 24px; }
  .live-points { grid-template-columns: 1fr; }
  .review-grid-wrap { gap: 28px; }
  .data-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-item-header { font-size: 15px; padding: 0 16px; }
  .faq-item-body p { padding: 0 16px 18px; }
  .anchor-nav-wrap { top: 104px; padding: 10px 0; }
}

@media screen and (max-width: 520px) {
  .header-cta { gap: 12px; }
  .btn-sm { padding: 0 14px; }
  .channel-tab { padding: 5px 16px; font-size: 14px; }
  .live-card .live-card-body h3 { font-size: 19px; }
  .data-item .data-num { font-size: 32px; }
  .category-cta h2 { font-size: 22px; }
}

/* roulang page: article */
:root {
  --color-primary: #E63946;
  --color-secondary: #1A6B50;
  --color-accent: #F4A261;
  --color-bg-dark: #0F1620;
  --color-bg-light: #F6F5F1;
  --color-surface: #FFFFFF;
  --color-border: #E5E3DE;
  --color-text-primary: #21262B;
  --color-text-secondary: #5F6B76;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-badge: 999px;
  --radius-icon: 8px;
  --shadow-card: 0 2px 12px rgba(15, 22, 32, 0.06);
  --shadow-hover: 0 12px 32px rgba(15, 22, 32, 0.12);
  --shadow-nav: 0 8px 24px rgba(15, 22, 32, 0.16);
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", Consolas, monospace;
  --gap-section: 72px;
  --container-w: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-primary);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 36px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 700;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  line-height: 1;
  white-space: nowrap;
  font-family: var(--font-cn);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
}

.btn-primary:hover {
  background: #CD2C37;
  border-color: #CD2C37;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(230, 57, 70, 0.35);
}

.btn-primary:active {
  transform: translateY(2px);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: rgba(230, 57, 70, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  height: 38px;
  padding: 0 24px;
  font-size: 14px;
  border-radius: 10px;
}

.btn-lg {
  height: 54px;
  padding: 0 44px;
  font-size: 17px;
}

.site-header {
  background: var(--color-surface);
  position: relative;
  z-index: 2000;
}

.header-top {
  height: 64px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.header-top .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  flex-wrap: nowrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #B81F2B 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  position: relative;
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
  font-family: var(--font-cn);
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--color-text-primary);
  line-height: 1;
  white-space: nowrap;
}

.brand-name span {
  color: var(--color-primary);
}

.header-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 0 16px;
  height: 42px;
  width: 280px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 1;
}

.header-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
}

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

.header-search input {
  border: 0;
  background: transparent;
  outline: 0;
  flex: 1;
  font-size: 14px;
  font-family: var(--font-cn);
  color: var(--color-text-primary);
  min-width: 0;
}

.header-search input::placeholder {
  color: #8A939E;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.login-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.login-link:hover {
  color: var(--color-primary);
}

.channel-bar {
  background: var(--color-bg-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: 0;
  z-index: 1500;
  box-shadow: 0 4px 16px rgba(15, 22, 32, 0.18);
}

.channel-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.channel-tabs::-webkit-scrollbar {
  display: none;
}

.channel-tab {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.channel-tab:hover {
  background: rgba(230, 57, 70, 0.15);
  color: #fff;
}

.channel-tab.active {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

.article-banner {
  position: relative;
  padding: 80px 0 64px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}

.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(15, 22, 32, 0.94) 0%, rgba(15, 22, 32, 0.82) 55%, rgba(230, 57, 70, 0.35) 100%);
}

.article-banner .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s ease;
}

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

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
}

.breadcrumb .current {
  color: rgba(255, 255, 255, 0.65);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-banner h1 {
  font-size: clamp(30px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 1px;
  max-width: 860px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.article-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
}

.article-meta i {
  margin-right: 4px;
  color: var(--color-accent);
}

.article-main {
  padding: 44px 0 var(--gap-section);
}

.article-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}

.article-abstract {
  background: #F1EFEB;
  border-left: 4px solid var(--color-primary);
  padding: 20px 26px;
  border-radius: 0 14px 14px 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
}

.article-body {
  background: var(--color-surface);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  padding: 40px 44px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--color-text-primary);
}

.article-body p {
  margin: 0 0 1.2em;
  letter-spacing: 0.02em;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin: 1.6em 0 0.7em;
  padding-left: 14px;
  border-left: 4px solid var(--color-primary);
  letter-spacing: 1px;
}

.article-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 1.4em 0 0.6em;
  letter-spacing: 0.5px;
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(230, 57, 70, 0.05);
  border-radius: 0 10px 10px 0;
  padding: 16px 22px;
  margin: 1.2em 0;
  color: var(--color-text-secondary);
  font-size: 15px;
}

.article-body img {
  max-width: 100%;
  width: auto;
  height: auto;
  border-radius: 12px;
  margin: 20px 0;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.2em;
  padding-left: 1.6em;
}

.article-body li {
  margin-bottom: 0.4em;
}

.article-empty {
  text-align: center;
  padding: 72px 20px;
  background: var(--color-surface);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
}

.article-empty i {
  font-size: 52px;
  color: var(--color-border);
  margin-bottom: 20px;
}

.article-empty p {
  font-size: 17px;
  color: var(--color-text-secondary);
  margin: 0 0 28px;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 36px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.article-tags i {
  color: var(--color-accent);
  font-size: 14px;
  margin-right: 4px;
}

.article-tags .tag-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-secondary);
}

.article-tags a {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
}

.article-tags a:hover {
  background: rgba(230, 57, 70, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.related-section {
  margin-top: 48px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}

.section-title .bar {
  width: 4px;
  height: 22px;
  border-radius: 3px;
  background: var(--color-primary);
}

.section-title h2 {
  font-size: 24px;
  font-weight: 800;
  margin: 0;
  color: var(--color-text-primary);
  letter-spacing: 1px;
}

.related-grid .cell {
  margin-bottom: 24px;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(229, 227, 222, 0.6);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  height: 100%;
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(230, 57, 70, 0.35);
}

.related-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.04);
}

.related-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(15, 22, 32, 0.4));
}

.related-info {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.related-info h4 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
  color: var(--color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
}

.related-info .related-date {
  font-size: 13px;
  color: var(--color-text-secondary);
  font-family: var(--font-num);
  display: flex;
  align-items: center;
  gap: 6px;
}

.related-info .related-date i {
  color: var(--color-accent);
  font-size: 12px;
}

.article-back {
  text-align: center;
  margin-top: 48px;
}

.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 0;
  margin-top: var(--gap-section);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.8fr 1.1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-brand .brand-name span {
  color: var(--color-primary);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  margin: 18px 0 0;
}

.footer-col h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  padding: 6px 0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-col a:hover {
  color: var(--color-primary);
  transform: translateX(3px);
}

.footer-contact p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--color-accent);
  width: 16px;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.05em;
}

@media (max-width: 1024px) {
  .header-search {
    width: 220px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .header-top .container {
    gap: 12px;
  }
  .header-search {
    display: none;
  }
  .header-cta {
    gap: 8px;
  }
  .brand-name {
    font-size: 17px;
  }
  .article-banner {
    padding: 56px 0 44px;
  }
  .article-banner h1 {
    font-size: 28px;
  }
  .article-body {
    padding: 26px 20px;
  }
  .related-grid .cell {
    margin-bottom: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .header-top {
    height: 58px;
  }
  .login-link {
    font-size: 13px;
  }
  .btn-sm {
    padding: 0 14px;
    font-size: 13px;
  }
  .channel-tab {
    padding: 0 16px;
    height: 32px;
    font-size: 14px;
  }
  .article-banner {
    padding: 44px 0 36px;
  }
  .article-banner h1 {
    font-size: 24px;
    line-height: 1.4;
  }
  .breadcrumb .current {
    max-width: 180px;
  }
  .article-main {
    padding: 28px 0 48px;
  }
  .article-inner {
    padding: 0 8px;
  }
  .article-abstract {
    padding: 16px 18px;
    font-size: 14px;
  }
  .article-body {
    padding: 20px 16px;
    border-radius: 14px;
  }
  .article-body h2 {
    font-size: 20px;
  }
  .article-body h3 {
    font-size: 17px;
  }
  .related-info h4 {
    min-height: 0;
  }
  .btn-lg {
    height: 48px;
    padding: 0 32px;
    font-size: 15px;
  }
  .article-back {
    margin-top: 32px;
  }
  .footer-grid {
    gap: 28px;
  }
}