/* roulang page: index */
:root {
  --brand-green: #00C6A0;
  --brand-green-dark: #008B6D;
  --brand-cyan: #00A3D4;
  --accent-orange: #FF6B35;
  --dark: #0E2A2E;
  --dark-deep: #0B1E21;
  --bg-light: #F4F9F8;
  --surface: #FFFFFF;
  --text-main: #122F33;
  --text-muted: #5F7A7E;
  --border-light: #DCE8E6;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 6px;
  --shadow-card: 0 10px 30px rgba(9, 45, 58, 0.08);
  --shadow-hover: 0 16px 40px rgba(9, 45, 58, 0.15);
  --gradient-brand: linear-gradient(135deg, #00C6A0 0%, #00A3D4 100%);
  --gradient-action: linear-gradient(135deg, #FF8A3D 0%, #FF5C28 100%);
  --section-space: 96px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif; font-size: 16px; line-height: 1.75; color: var(--text-main); background: var(--bg-light); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: var(--section-space) 0; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(0, 198, 160, 0.4); outline-offset: 2px; }
h1, h2, h3, h4, h5, h6 { font-weight: 800; line-height: 1.3; color: var(--text-main); }

/* ===== 顶部信息条 ===== */
.topbar { background: var(--dark); color: rgba(255, 255, 255, 0.78); font-size: 13px; line-height: 20px; height: 40px; display: flex; align-items: center; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar-left { display: flex; align-items: center; gap: 6px; }
.topbar-right { display: flex; gap: 20px; }
.topbar-right a { color: rgba(255, 255, 255, 0.78); transition: color 0.25s; }
.topbar-right a:hover { color: var(--brand-green); }
@media (max-width: 576px) {
  .topbar-right { display: none; }
}

/* ===== 主导航 ===== */
.main-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-light); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--dark); white-space: nowrap; }
.brand-logo .logo-icon { width: 38px; height: 38px; border-radius: 12px; background: var(--gradient-brand); display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 800; box-shadow: 0 4px 12px rgba(0, 198, 160, 0.3); }
.brand-logo .logo-sub { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-menu { display: flex; list-style: none; gap: 32px; margin: 0; padding: 0; align-items: center; }
.nav-menu li { margin: 0; }
.nav-menu a { position: relative; font-size: 15px; font-weight: 500; color: var(--text-main); padding: 10px 0; display: inline-block; transition: color 0.25s; }
.nav-menu a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--gradient-brand); border-radius: 2px; transition: width 0.25s; }
.nav-menu a:hover, .nav-menu a.active { color: var(--brand-green-dark); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.btn-nav { margin-left: 8px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--border-light); background: var(--surface); align-items: center; justify-content: center; }
.nav-toggle i { display: block; width: 20px; height: 2px; background: var(--dark); position: relative; transition: background 0.2s; }
.nav-toggle i::before, .nav-toggle i::after { content: ''; position: absolute; left: 0; width: 20px; height: 2px; background: var(--dark); transition: transform 0.3s; }
.nav-toggle i::before { top: -6px; }
.nav-toggle i::after { top: 6px; }
.nav-toggle[aria-expanded="true"] i { background: transparent; }
.nav-toggle[aria-expanded="true"] i::before { transform: rotate(45deg); top: 0; }
.nav-toggle[aria-expanded="true"] i::after { transform: rotate(-45deg); top: 0; }
.mobile-menu { display: none; position: absolute; top: 76px; left: 16px; right: 16px; background: var(--surface); border-radius: 12px; box-shadow: 0 20px 60px rgba(9, 45, 58, 0.2); padding: 16px; z-index: 99; }
.mobile-menu.collapse { display: none; }
.mobile-menu.collapse.show { display: block; }
.mobile-menu a { display: block; line-height: 48px; font-size: 16px; font-weight: 500; color: var(--text-main); border-bottom: 1px solid var(--border-light); padding: 0 4px; }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--brand-green-dark); }
.mobile-menu .btn-primary { display: block; text-align: center; margin-top: 12px; line-height: 44px; padding: 0; }
@media (max-width: 991px) {
  .nav-menu { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-menu { display: block; }
}
@media (max-width: 576px) {
  .nav-container { height: 64px; }
  .brand-logo { font-size: 18px; }
  .brand-logo .logo-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 9px; }
  .btn-nav { display: none; }
}

/* ===== 按钮 ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; padding: 0 28px; border-radius: 999px; font-size: 15px; font-weight: 600; border: none; transition: all 0.3s ease; text-decoration: none; }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn-primary { background: var(--gradient-action); color: #fff; box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3); }
.btn-primary:hover { background: linear-gradient(135deg, #f0702a, #e84f1c); transform: scale(1.02); color: #fff; }
.btn-secondary { background: transparent; color: var(--brand-green-dark); border: 2px solid var(--brand-green); }
.btn-secondary:hover { background: rgba(0, 198, 160, 0.1); transform: translateY(-1px); }
.btn-white { background: #fff; color: var(--brand-green-dark); }
.btn-white:hover { background: #f0f5f4; color: var(--brand-green-dark); }
.btn:focus-visible { outline: 3px solid rgba(0, 198, 160, 0.4); outline-offset: 2px; }

/* ===== Hero ===== */
.hero { position: relative; min-height: 620px; display: flex; align-items: center; padding: 96px 0; background: linear-gradient(90deg, rgba(244, 249, 248, 1) 0%, rgba(244, 249, 248, 0.88) 42%, rgba(0, 198, 160, 0.25) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; overflow: hidden; }
.hero-content { max-width: 600px; }
.hero h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.25; font-weight: 800; color: var(--dark); margin-bottom: 20px; }
.hero h1 .gradient-text { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 18px; line-height: 1.8; color: #3D5F63; font-weight: 400; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 0; margin-top: 44px; flex-wrap: wrap; }
.hero-badge { background: rgba(255, 255, 255, 0.65); border-radius: 16px; padding: 16px 28px; backdrop-filter: blur(4px); border: 1px solid rgba(255, 255, 255, 0.7); }
.hero-badge + .hero-badge { border-left: 1px solid rgba(0, 0, 0, 0.06); border-radius: 0 16px 16px 0; }
.hero-badge:first-child { border-radius: 16px 0 0 16px; }
.hero-badge:only-child { border-radius: 16px; }
.hero-badge .badge-num { font-size: 32px; font-weight: 800; line-height: 1.2; background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-variant-numeric: tabular-nums; }
.hero-badge .badge-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }
@media (max-width: 991px) {
  .hero { padding: 72px 0; min-height: 540px; background: linear-gradient(90deg, rgba(244, 249, 248, 0.96) 0%, rgba(244, 249, 248, 0.85) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; }
  .hero-badges { gap: 0; }
}
@media (max-width: 767px) {
  .hero { min-height: 480px; padding: 56px 0; }
  .hero h1 { font-size: 32px; line-height: 1.35; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-badges { flex-direction: column; gap: 12px; }
  .hero-badge, .hero-badge:first-child, .hero-badge + .hero-badge { border-radius: 16px; border-left: none; }
}
@media (max-width: 575px) {
  .hero { padding: 48px 0; }
  .hero-badge { padding: 14px 20px; }
  .hero-badge .badge-num { font-size: 26px; }
}

/* ===== 板块标题 ===== */
.section-title-wrap { text-align: center; margin-bottom: 52px; }
.section-title { font-size: 36px; line-height: 1.3; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.section-title .gradient-text { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-subtitle { font-size: 16px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }
@media (max-width: 767px) {
  .section-title { font-size: 26px; }
  .section-title-wrap { margin-bottom: 36px; }
}

/* ===== 品牌故事 ===== */
.story-section { position: relative; background: var(--surface); padding: var(--section-space) 0; }
.story-grid { display: flex; gap: 60px; align-items: center; }
.story-image-wrap { flex: 0 0 55%; position: relative; }
.story-image-wrap::before { content: ''; position: absolute; top: -24px; left: -24px; width: 180px; height: 180px; background: rgba(0, 198, 160, 0.1); border-radius: 32px; z-index: 0; }
.story-img { border-radius: 20px; box-shadow: var(--shadow-card); position: relative; z-index: 1; width: 100%; object-fit: cover; aspect-ratio: 16 / 10; background: #e8f3f0; }
.story-content { flex: 1; }
.story-content h2 { font-size: 32px; line-height: 1.35; margin-bottom: 20px; }
.story-content p { color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.story-features { display: flex; gap: 24px; margin-top: 28px; flex-wrap: wrap; }
.story-feature { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; color: var(--text-main); }
.story-feature svg { width: 22px; height: 22px; stroke: var(--brand-green-dark); stroke-width: 2; fill: none; }
.story-link { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; color: var(--brand-green-dark); margin-top: 24px; transition: gap 0.25s; }
.story-link:hover { gap: 10px; color: var(--brand-green-dark); }
@media (max-width: 991px) {
  .story-grid { flex-direction: column; gap: 40px; }
  .story-image-wrap { flex: none; width: 100%; }
  .story-content { flex: none; width: 100%; }
}
@media (max-width: 767px) {
  .story-content h2 { font-size: 24px; }
}

/* ===== 精选内容卡区 ===== */
.featured-section { padding: var(--section-space) 0; background: var(--bg-light); }
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.content-card { background: var(--surface); border-radius: 20px; padding: 16px; box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease; display: flex; flex-direction: column; }
.content-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.card-img-wrap { border-radius: 16px; overflow: hidden; aspect-ratio: 16 / 10; background: #e8f3f0; position: relative; }
.card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.content-card:hover .card-img-wrap img { transform: scale(1.04); }
.card-tag { position: absolute; top: 12px; left: 12px; background: var(--brand-green); color: #fff; font-size: 13px; font-weight: 500; padding: 4px 12px; border-radius: 999px; z-index: 2; }
.card-body { padding: 16px 4px 4px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 20px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-desc { font-size: 14px; line-height: 1.6; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 14px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.card-date { font-size: 14px; color: var(--text-muted); }
.card-arrow { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-light); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; color: var(--text-muted); transition: all 0.3s; }
.card-arrow:hover { background: var(--gradient-brand); color: #fff; border-color: transparent; transform: translateX(2px); }
@media (max-width: 991px) {
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .featured-grid { grid-template-columns: 1fr; }
}

/* ===== 最新资讯CMS区 ===== */
.news-section { padding: var(--section-space) 0; background: var(--surface); }
.news-list { display: flex; flex-direction: column; }
.news-list-item { display: flex; align-items: center; gap: 20px; padding: 20px 16px; border-radius: 14px; transition: background 0.25s, box-shadow 0.25s; border-bottom: 1px solid var(--border-light); }
.news-list-item:last-child { border-bottom: none; }
.news-list-item:hover { background: #F4F9F8; }
.news-list-item:hover .news-headline { color: var(--brand-green-dark); }
.news-badge { flex-shrink: 0; background: rgba(0, 198, 160, 0.12); color: var(--brand-green-dark); font-size: 13px; font-weight: 500; padding: 4px 14px; border-radius: 4px; white-space: nowrap; }
.news-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.news-headline { font-size: 17px; font-weight: 600; color: var(--text-main); line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: color 0.25s; }
.news-excerpt { font-size: 14px; color: var(--text-muted); line-height: 1.6; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-meta { flex-shrink: 0; display: flex; align-items: center; gap: 16px; }
.news-date { font-size: 14px; color: var(--text-muted); white-space: nowrap; }
.news-arrow-icon { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-light); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; color: var(--text-muted); transition: all 0.3s; }
.news-list-item:hover .news-arrow-icon { background: var(--gradient-brand); color: #fff; border-color: transparent; }
.empty-state { border: 2px dashed var(--border-light); border-radius: 20px; text-align: center; padding: 64px 24px; }
.empty-icon { margin-bottom: 16px; color: #B8CDCA; }
.empty-state p { font-size: 16px; color: var(--text-muted); }
@media (max-width: 767px) {
  .news-list-item { flex-wrap: wrap; gap: 8px 12px; padding: 16px 12px; }
  .news-badge { font-size: 12px; padding: 3px 10px; }
  .news-headline { font-size: 15px; }
  .news-excerpt { white-space: normal; -webkit-line-clamp: 1; }
  .news-meta { margin-left: auto; }
  .news-date { font-size: 13px; }
}

/* ===== 信任背书区 ===== */
.trust-section { background: var(--dark); color: #fff; padding: var(--section-space) 0; border-radius: 24px; margin: 96px 24px; }
.trust-section .container { max-width: 1200px; }
.trust-section .section-title { color: #fff; }
.trust-section .section-title .gradient-text { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.trust-section .section-subtitle { color: rgba(255, 255, 255, 0.7); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-top: 48px; text-align: center; }
.trust-num { font-size: 32px; font-weight: 800; line-height: 1.2; background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-variant-numeric: tabular-nums; }
.trust-label { font-size: 14px; color: rgba(255, 255, 255, 0.6); margin-top: 8px; }
.partner-logos { display: flex; justify-content: center; gap: 48px; margin-top: 64px; flex-wrap: wrap; align-items: center; }
.partner-logo { font-size: 15px; font-weight: 500; color: rgba(255, 255, 255, 0.5); filter: grayscale(1); opacity: 0.5; transition: opacity 0.3s, color 0.3s; letter-spacing: 1px; }
.partner-logo:hover { opacity: 1; color: rgba(255, 255, 255, 0.9); }
@media (max-width: 991px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 767px) {
  .trust-section { margin: 56px 16px; padding: 56px 16px; border-radius: 20px; }
  .trust-num { font-size: 26px; }
}
@media (max-width: 575px) {
  .trust-section { margin: 40px 4px; }
}

/* ===== FAQ ===== */
.faq-section { padding: var(--section-space) 0; background: var(--bg-light); }
.faq-accordion { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--surface); border-radius: 16px; box-shadow: var(--shadow-card); margin-bottom: 12px; border: none !important; overflow: hidden; }
.faq-btn { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; font-size: 17px; font-weight: 600; color: var(--text-main); border-radius: 16px; text-align: left; background: var(--surface) !important; box-shadow: none !important; transition: color 0.25s; }
.faq-btn:hover { color: var(--brand-green-dark); }
.faq-btn::after { flex-shrink: 0; width: 22px; height: 22px; margin-left: 16px; background-size: contain; background-repeat: no-repeat; background-position: center; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235F7A7E' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 8v8M8 12h8'/%3E%3C/svg%3E"); transition: transform 0.35s; }
.faq-btn:not(.collapsed)::after { transform: rotate(45deg); }
.faq-answer { padding: 0 24px 20px; font-size: 15px; line-height: 1.75; color: var(--text-muted); }
@media (max-width: 767px) {
  .faq-btn { font-size: 15px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 16px; }
}

/* ===== CTA 订阅区 ===== */
.cta-section { padding: 0 24px 96px; }
.cta-panel { background: var(--gradient-brand); border-radius: 24px; padding: 64px 48px; display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-left { flex: 1; min-width: 280px; }
.cta-left h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-left p { font-size: 16px; line-height: 1.7; color: rgba(255, 255, 255, 0.85); }
.cta-form { display: flex; align-items: center; gap: 0; background: #fff; border-radius: 12px; padding: 4px; width: 100%; max-width: 440px; }
.cta-form input { flex: 1; border: none; outline: none; padding: 0 16px; height: 40px; font-size: 14px; background: transparent; color: var(--text-main); border-radius: 10px; }
.cta-form input::placeholder { color: #9DB4B2; }
.cta-form .btn { flex-shrink: 0; }
@media (max-width: 991px) {
  .cta-panel { flex-direction: column; padding: 48px 32px; }
  .cta-form { max-width: 100%; }
}
@media (max-width: 767px) {
  .cta-section { padding: 0 16px 56px; }
  .cta-panel { padding: 32px 24px; border-radius: 18px; }
  .cta-left h2 { font-size: 22px; }
  .cta-form { flex-direction: column; gap: 12px; background: transparent; padding: 0; }
  .cta-form input { width: 100%; height: 44px; }
  .cta-form .btn { width: 100%; }
}

/* ===== 页脚 ===== */
.main-footer { background: var(--dark-deep); color: rgba(255, 255, 255, 0.7); padding: 64px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 16px; }
.footer-brand .brand-logo .logo-sub { background: var(--gradient-brand); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-brand p { color: rgba(255, 255, 255, 0.55); line-height: 1.7; max-width: 320px; }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.55); transition: color 0.25s; }
.footer-links a:hover { color: var(--brand-green); }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { margin-bottom: 12px; color: rgba(255, 255, 255, 0.55); display: flex; gap: 8px; align-items: center; }
.footer-contact svg { width: 18px; height: 18px; stroke: var(--brand-green); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; text-align: center; color: rgba(255, 255, 255, 0.4); font-size: 13px; }
@media (max-width: 991px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== 通用响应式 ===== */
@media (max-width: 991px) {
  .section-padding { --section-space: 72px; }
}
@media (max-width: 767px) {
  .section-padding { --section-space: 56px; }
  .container { padding: 0 16px; }
}

/* roulang page: category1 */
/* ====== 设计变量 ====== */
        :root {
            --brand-green: #00C6A0;
            --brand-green-dark: #008B6D;
            --brand-cyan: #00A3D4;
            --accent-orange: #FF6B35;
            --dark: #0E2A2E;
            --dark-deep: #0B1E21;
            --bg-light: #F4F9F8;
            --surface: #FFFFFF;
            --text-main: #122F33;
            --text-muted: #5F7A7E;
            --border-light: #DCE8E6;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 6px 18px rgba(9, 45, 58, 0.07);
            --shadow-lg: 0 16px 40px rgba(9, 45, 58, 0.13);
            --gradient-brand: linear-gradient(135deg, #00C6A0 0%, #00A3D4 100%);
            --gradient-accent: linear-gradient(135deg, #FF8A3D 0%, #FF5C28 100%);
            --section-pad: 96px;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
        }

        /* ====== 基础 Reset ====== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--brand-green-dark);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--brand-green);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 0.5em;
            color: var(--text-main);
        }
        p {
            margin: 0 0 1rem;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-padding {
            padding: var(--section-pad) 0;
        }
        .section-title {
            font-size: 36px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 44px;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ====== 按钮体系 ====== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            border-radius: 999px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all 0.28s ease;
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(0, 198, 160, 0.4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--gradient-accent);
            color: #fff;
            height: 48px;
            padding: 0 28px;
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.28);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #ff7a2a, #f04e1d);
            color: #fff;
            transform: scale(1.02);
            box-shadow: 0 12px 26px rgba(255, 107, 53, 0.36);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--brand-green);
            color: var(--brand-green-dark);
            height: 48px;
            padding: 0 26px;
        }
        .btn-outline:hover {
            background: rgba(0, 198, 160, 0.1);
            color: var(--brand-green-dark);
            border-color: var(--brand-green-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }
        .btn-nav {
            margin-left: 8px;
        }

        /* ====== 顶部信息条 ====== */
        .topbar {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.78);
            font-size: 13px;
            line-height: 1;
            height: 40px;
            display: flex;
            align-items: center;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .topbar-left .sep {
            opacity: 0.35;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .topbar-right a {
            color: rgba(255, 255, 255, 0.78);
            text-decoration: none;
            transition: color 0.25s ease;
            font-size: 13px;
            line-height: 20px;
        }
        .topbar-right a:hover {
            color: var(--brand-green);
        }
        @media (max-width: 768px) {
            .topbar-right {
                display: none;
            }
        }

        /* ====== 主导航 ====== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(0, 198, 160, 0.32);
        }
        .brand-logo>span:last-child {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .logo-sub {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            list-style: none;
            margin: 0;
        }
        .nav-menu a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            text-decoration: none;
            padding: 24px 0 22px;
            line-height: 1;
            transition: color 0.25s ease;
        }
        .nav-menu a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-brand);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--brand-green-dark);
        }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: none;
            background: transparent;
            position: relative;
            cursor: pointer;
            border-radius: 10px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(0, 198, 160, 0.08);
        }
        .nav-toggle i {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            position: relative;
            transition: background 0.2s;
        }
        .nav-toggle i::before,
        .nav-toggle i::after {
            content: "";
            position: absolute;
            left: 0;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform 0.25s ease;
        }
        .nav-toggle i::before {
            top: -7px;
        }
        .nav-toggle i::after {
            top: 7px;
        }
        .mobile-menu {
            background: #fff;
            border-radius: 12px;
            margin: 8px 16px 16px;
            padding: 8px 16px;
            box-shadow: 0 16px 40px rgba(9, 45, 58, 0.16);
            border: 1px solid var(--border-light);
        }
        .mobile-menu a {
            display: block;
            line-height: 48px;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 1px solid rgba(220, 232, 230, 0.6);
            text-decoration: none;
            padding: 0 4px;
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a:hover {
            color: var(--brand-green-dark);
            background: rgba(0, 198, 160, 0.04);
        }
        .mobile-menu .btn {
            margin: 12px 0 8px;
            width: 100%;
        }
        @media (max-width: 992px) {
            .nav-menu {
                display: none !important;
            }
            .btn-nav {
                display: none !important;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
        }

        /* ====== 面包屑 ====== */
        .breadcrumb-nav {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            font-size: 13px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--brand-green-dark);
        }
        .breadcrumb-nav .sep {
            margin: 0 10px;
            color: #b5c9c6;
        }
        .breadcrumb-nav .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ====== 分类 Hero ====== */
        .category-hero {
            position: relative;
            padding: 64px 0 72px;
            background: linear-gradient(90deg, rgba(244, 249, 248, 1) 0%, rgba(244, 249, 248, 0.92) 45%, rgba(0, 198, 160, 0.35) 100%),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .category-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(0, 198, 160, 0.12);
            color: var(--brand-green-dark);
            font-size: 13px;
            font-weight: 600;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .category-hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            color: var(--text-main);
        }
        .category-hero h1 .gradient-text {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .category-hero .hero-desc {
            font-size: 18px;
            line-height: 1.75;
            color: #3D5F63;
            margin-bottom: 28px;
            max-width: 620px;
        }
        .hero-meta-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 10px;
        }
        .hero-meta-list span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(220, 232, 230, 0.9);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        /* ====== 分类简介 ====== */
        .category-intro {
            background: #fff;
            padding: 72px 0;
        }
        .category-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .category-intro h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .category-intro p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .intro-highlight {
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 32px;
        }
        .intro-highlight h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .intro-highlight p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .category-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ====== 特色板块 ====== */
        .feature-strip {
            background: var(--bg-light);
            padding: 72px 0;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-item {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(0, 198, 160, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-green-dark);
            margin-bottom: 18px;
        }
        .feature-icon svg {
            width: 24px;
            height: 24px;
        }
        .feature-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== 精选内容卡片 ====== */
        .featured-section {
            background: #fff;
            padding: var(--section-pad) 0;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 14px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.35s ease, box-shadow 0.35s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .card-media {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16/10;
            background: #e2efec;
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .news-card:hover .card-media img {
            transform: scale(1.04);
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 198, 160, 0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
            backdrop-filter: blur(4px);
        }
        .card-body-news {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 4px 8px 8px;
        }
        .card-body-news h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 50px;
        }
        .card-body-news p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-footer-news {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(220, 232, 230, 0.6);
            padding-top: 12px;
        }
        .card-footer-news .time {
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all 0.3s ease;
            font-size: 15px;
            line-height: 1;
        }
        .news-card:hover .card-arrow {
            background: var(--gradient-brand);
            border-color: transparent;
            color: #fff;
            transform: rotate(-45deg);
        }
        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 14px;
            text-decoration: none;
            margin-top: 40px;
            transition: color 0.25s ease;
        }
        .back-home-link:hover {
            color: var(--brand-green-dark);
        }
        @media (max-width: 992px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== 数据区 ====== */
        .stats-section {
            background: var(--dark);
            color: #fff;
            padding: 72px 0;
        }
        .stats-section .section-title {
            color: #fff;
            text-align: center;
            margin-bottom: 8px;
        }
        .stats-section .section-sub {
            color: rgba(255, 255, 255, 0.6);
            text-align: center;
            margin-bottom: 48px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        /* ====== FAQ ====== */
        .faq-section {
            background: var(--bg-light);
            padding: var(--section-pad) 0;
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-lg);
        }
        .faq-question {
            width: 100%;
            border: none;
            background: transparent;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--brand-green-dark);
        }
        .faq-question .icon-faq {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 198, 160, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--brand-green-dark);
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s ease;
            line-height: 1;
        }
        .faq-item.active .faq-question .icon-faq {
            transform: rotate(45deg);
            background: var(--brand-green);
            color: #fff;
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ====== CTA 区 ====== */
        .cta-section {
            background: #fff;
            padding: 0 0 var(--section-pad);
        }
        .cta-panel {
            background: var(--gradient-brand);
            border-radius: 24px;
            padding: 56px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            box-shadow: 0 24px 60px rgba(0, 163, 212, 0.22);
            flex-wrap: wrap;
        }
        .cta-info {
            flex: 1;
            min-width: 260px;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .cta-info p {
            font-size: 16px;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 0;
            max-width: 460px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            min-width: 320px;
            flex: 1;
        }
        .cta-form input {
            flex: 1;
            height: 52px;
            border: none;
            border-radius: 12px;
            padding: 0 18px;
            background: rgba(255, 255, 255, 0.96);
            color: var(--text-main);
            font-size: 15px;
            min-width: 180px;
            outline: none;
        }
        .cta-form input:focus {
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
        }
        .cta-form input::placeholder {
            color: #9bb3b0;
        }
        .cta-form .btn-white {
            height: 52px;
            padding: 0 28px;
            background: #fff;
            color: var(--brand-green-dark);
            border: none;
            border-radius: 999px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.28s ease;
            white-space: nowrap;
        }
        .cta-form .btn-white:hover {
            background: rgba(255, 255, 255, 0.88);
            transform: translateY(-2px);
            color: var(--brand-green-dark);
        }
        @media (max-width: 768px) {
            .cta-panel {
                flex-direction: column;
                padding: 36px 24px;
            }
            .cta-form {
                min-width: 100%;
            }
        }

        /* ====== 页脚 ====== */
        .main-footer {
            background: var(--dark-deep);
            color: rgba(255, 255, 255, 0.72);
            padding-top: 72px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 16px;
        }
        .footer-brand .brand-logo>span:last-child {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            max-width: 300px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--brand-green);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-contact li svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            opacity: 0.8;
        }
        .footer-contact li a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-contact li a:hover {
            color: var(--brand-green);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ====== 响应式微调 ====== */
        @media (max-width: 1200px) {
            .category-hero h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 56px;
            }
            .section-title {
                font-size: 28px;
            }
            .category-hero {
                padding: 44px 0 52px;
            }
            .category-hero h1 {
                font-size: 30px;
                line-height: 1.25;
            }
            .category-hero .hero-desc {
                font-size: 16px;
            }
            .hero-meta-list span {
                font-size: 12px;
                padding: 6px 12px;
            }
            .cta-panel {
                padding: 32px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .breadcrumb-nav {
                font-size: 13px;
                overflow-x: auto;
                white-space: nowrap;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
            }
            .cta-form .btn-white {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
  --brand-green: #00C6A0;
  --brand-green-dark: #008B6D;
  --brand-cyan: #00A3D4;
  --accent-orange: #FF6B35;
  --accent-orange-dark: #E8531F;
  --dark: #0E2A2E;
  --dark-deep: #0B1E21;
  --bg-light: #F4F9F8;
  --surface: #FFFFFF;
  --text-main: #122F33;
  --text-muted: #5F7A7E;
  --border-light: #DCE8E6;
  --gradient-brand: linear-gradient(135deg, #00C6A0 0%, #00A3D4 100%);
  --gradient-action: linear-gradient(135deg, #FF8A3D 0%, #FF5C28 100%);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 6px;
  --shadow-card: 0 10px 30px rgba(9,45,58,0.08);
  --shadow-hover: 0 16px 40px rgba(9,45,58,0.15);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-green-dark); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--brand-green); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
section { padding: 96px 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 0;
  transition: all .3s ease;
  text-decoration: none;
  line-height: 1;
}
.btn:focus-visible { outline: 3px solid rgba(0,198,160,0.4); outline-offset: 2px; }
.btn-primary {
  background: var(--gradient-action);
  color: #fff !important;
  box-shadow: 0 8px 20px rgba(255,107,53,0.3);
}
.btn-primary:hover { transform: scale(1.02); box-shadow: 0 10px 26px rgba(255,107,53,0.38); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--brand-green-dark);
  border: 2px solid var(--brand-green);
}
.btn-outline:hover { background: rgba(0,198,160,0.1); transform: translateY(-2px); }
.btn-sm { height: 40px; padding: 0 22px; font-size: 14px; }
.btn-light-solid { background: #fff; color: var(--brand-green-dark); }
.btn-light-solid:hover { background: #f3f7f6; transform: scale(1.02); }

/* ===== Topbar ===== */
.topbar {
  background: var(--dark);
  height: 40px;
  color: rgba(255,255,255,0.78);
  font-size: 13px;
  line-height: 40px;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 100%; }
.topbar-left { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-right { display: flex; gap: 20px; align-items: center; }
.topbar-right a { color: rgba(255,255,255,0.85); text-decoration: none; transition: color .25s; font-size: 13px; }
.topbar-right a:hover { color: var(--brand-green); }

/* ===== Header / Nav ===== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(220,232,230,0.8);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  flex-shrink: 0;
}
.brand-logo:hover { color: var(--text-main); }
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(0,198,160,0.35);
}
.brand-logo .logo-sub {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav-menu { display: flex; align-items: center; gap: 40px; list-style: none; margin: 0; padding: 0; }
.nav-menu a {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  line-height: 1.4;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
  border-radius: 2px;
}
.nav-menu a:hover::after,
.nav-menu a.active::after { transform: scaleX(1); }
.nav-menu a:hover,
.nav-menu a.active { color: var(--brand-green-dark); }
.btn-nav { margin-left: 12px; flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 46px;
  height: 44px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: #fff;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle i { display: block; width: 20px; height: 2px; background: var(--text-main); border-radius: 2px; }
.nav-toggle i:nth-child(2) { width: 14px; align-self: flex-end; margin-right: 8px; }
.nav-toggle:focus-visible { outline: 3px solid rgba(0,198,160,0.4); outline-offset: 2px; }
.mobile-menu {
  display: none;
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  margin: 0 16px 16px;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu a { display: block; padding: 12px 16px; border-radius: 10px; font-size: 15px; color: var(--text-main); text-decoration: none; line-height: 1.5; }
.mobile-menu a:hover { background: var(--bg-light); color: var(--brand-green-dark); }
.mobile-menu .btn { margin-top: 8px; width: 100%; }
.mobile-menu.collapse:not(.show) { display: none; }
.mobile-menu.show { display: flex; }

/* ===== Breadcrumb ===== */
.breadcrumb-nav { padding: 16px 0; background: var(--bg-light); border-bottom: 1px solid var(--border-light); }
.breadcrumb-nav .container { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--text-muted); }
.breadcrumb-nav a { color: var(--text-muted); text-decoration: none; }
.breadcrumb-nav a:hover { color: var(--brand-green-dark); }
.breadcrumb-nav .crumb-sep { color: #B7C8C5; }
.breadcrumb-nav .crumb-current { color: var(--text-main); font-weight: 600; max-width: 480px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: inline-block; vertical-align: bottom; }

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 64px;
  background:
    linear-gradient(135deg, rgba(14,42,46,0.92) 0%, rgba(0,163,212,0.78) 100%),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  color: #fff;
}
.article-hero .article-header { max-width: 800px; position: relative; z-index: 2; }
.article-hero .article-cat {
  display: inline-block;
  background: var(--brand-green);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.article-hero h1 {
  font-size: 36px;
  line-height: 1.3;
  font-weight: 800;
  margin: 0 0 24px;
  color: #fff;
  letter-spacing: 0.2px;
  word-break: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: rgba(255,255,255,0.82);
}
.article-meta span, .article-meta time { display: inline-flex; align-items: center; gap: 6px; }
.article-meta svg { width: 16px; height: 16px; opacity: 0.7; }

/* ===== Article Main ===== */
.article-main { background: var(--bg-light); padding: 64px 0 0; }
.article-layout { max-width: 800px; margin: 0 auto; }
.article-figure { border-radius: var(--radius-lg); overflow: hidden; margin: 0 0 40px; box-shadow: var(--shadow-card); }
.article-figure img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.article-content { background: #fff; border-radius: var(--radius-lg); padding: 48px 56px; box-shadow: var(--shadow-card); }
.article-content p { font-size: 16px; line-height: 1.8; color: var(--text-main); margin: 0 0 22px; }
.article-content h2 { font-size: 26px; font-weight: 700; margin: 40px 0 16px; color: var(--text-main); line-height: 1.4; }
.article-content h3 { font-size: 20px; font-weight: 700; margin: 32px 0 12px; color: var(--text-main); }
.article-content h4 { font-size: 17px; font-weight: 600; margin: 28px 0 10px; color: var(--text-main); }
.article-content img { border-radius: var(--radius-md); margin: 16px 0; width: 100%; }
.article-content blockquote {
  border-left: 4px solid var(--brand-green);
  background: var(--bg-light);
  margin: 28px 0;
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-muted);
  font-size: 15px;
}
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; line-height: 1.75; }
.article-content a { color: var(--brand-green-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; }
.article-content table th, .article-content table td { border: 1px solid var(--border-light); padding: 12px 16px; text-align: left; }
.article-content table th { background: var(--bg-light); font-weight: 600; }
.article-content code { background: var(--bg-light); padding: 3px 8px; border-radius: 6px; font-size: 14px; }
.article-content hr { border: 0; border-top: 1px solid var(--border-light); margin: 32px 0; }

/* ===== Article Tags ===== */
.article-tags { max-width: 800px; margin: 24px auto 0; padding: 20px 24px; display: flex; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 14px; }
.article-tags .tag-label { color: var(--text-muted); font-weight: 500; }
.article-tags .tag-item {
  background: rgba(0,198,160,0.1);
  color: var(--brand-green-dark);
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 999px;
  transition: background .25s, color .25s;
  border: 1px solid rgba(0,198,160,0.18);
}
.article-tags .tag-item:hover { background: var(--brand-green); color: #fff; text-decoration: none; }
.article-back-link { max-width: 800px; margin: 0 auto; padding: 0 24px 48px; }
.article-back-link a { color: var(--text-muted); font-size: 15px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: color .25s, transform .25s; }
.article-back-link a:hover { color: var(--brand-green-dark); transform: translateX(-4px); }

/* ===== Related Posts ===== */
.related-section { background: #fff; padding: 72px 0; }
.related-section .section-head { text-align: center; margin-bottom: 48px; }
.related-section .section-head h2 { font-size: 30px; font-weight: 800; margin: 0 0 10px; color: var(--text-main); }
.related-section .section-head p { font-size: 15px; color: var(--text-muted); margin: 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .35s ease, box-shadow .35s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card .card-img { aspect-ratio: 16/10; overflow: hidden; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.related-card:hover .card-img img { transform: scale(1.04); }
.related-card .card-body { padding: 18px 18px 14px; display: flex; flex-direction: column; flex: 1; }
.related-card .card-title { font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--text-main); margin: 0 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card:hover .card-title { color: var(--brand-green-dark); }
.related-card .card-date { font-size: 12px; color: var(--text-muted); margin-top: auto; display: flex; align-items: center; gap: 6px; }

/* ===== CTA Section ===== */
.cta-section { padding: 24px 0 96px; background: #fff; }
.cta-panel {
  background: var(--gradient-brand);
  border-radius: 24px;
  padding: 64px 48px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-panel::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-panel h2 { font-size: 28px; font-weight: 800; margin: 0 0 12px; letter-spacing: 0.5px; }
.cta-panel p { font-size: 16px; color: rgba(255,255,255,0.85); margin: 0 0 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-form { display: flex; gap: 12px; justify-content: center; max-width: 500px; margin: 0 auto; }
.cta-form input[type="email"] {
  flex: 1;
  min-width: 0;
  height: 48px;
  border: 0;
  border-radius: var(--radius-md);
  padding: 0 20px;
  font-size: 15px;
  background: #fff;
  color: var(--text-main);
  outline: none;
  transition: box-shadow .25s;
}
.cta-form input[type="email"]:focus { box-shadow: 0 0 0 4px rgba(255,255,255,0.3); }
.cta-form input[type="email"]::placeholder { color: #9BB3B7; }

/* ===== Not Found ===== */
.not-found-section { padding: 96px 0; background: var(--bg-light); min-height: 50vh; display: flex; align-items: center; }
.not-found-card {
  max-width: 520px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 44px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(9,45,58,0.1);
  border: 2px dashed var(--border-light);
}
.not-found-card h1 { font-size: 32px; font-weight: 800; margin: 0 0 16px; color: var(--text-main); }
.not-found-card p { color: var(--text-muted); font-size: 15px; margin: 0 0 28px; }
.not-found-card .btn { min-width: 140px; }

/* ===== Footer ===== */
.main-footer { background: var(--dark-deep); color: rgba(255,255,255,0.72); font-size: 14px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding: 64px 0 48px;
}
.main-footer .brand-logo { color: #fff; font-size: 20px; }
.main-footer .brand-logo:hover { color: #fff; }
.footer-brand p { margin: 16px 0 0; font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin: 0 0 20px; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.62); text-decoration: none; transition: color .25s, padding-left .25s; }
.footer-links a:hover { color: var(--brand-green); padding-left: 6px; }
.footer-contact { list-style: none; margin: 0; padding: 0; }
.footer-contact li { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; color: rgba(255,255,255,0.62); font-size: 14px; word-break: break-all; }
.footer-contact svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--brand-green); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; text-align: center; font-size: 14px; color: rgba(255,255,255,0.5); }

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .nav-menu { gap: 24px; }
  .related-grid { gap: 16px; }
}
@media (max-width: 991px) {
  section { padding: 72px 0; }
  .nav-menu { gap: 18px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-content { padding: 40px 36px; }
}
@media (max-width: 768px) {
  section { padding: 56px 0; }
  .topbar-right { display: none; }
  .nav-menu { display: none; }
  .btn-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-menu { display: flex; }
  .article-hero { padding: 56px 0 48px; }
  .article-hero h1 { font-size: 30px; line-height: 1.35; }
  .article-content { padding: 28px 20px; border-radius: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 48px 0 32px; }
  .cta-panel { padding: 48px 24px; border-radius: 18px; }
  .cta-form { flex-direction: column; }
  .cta-form .btn { width: 100%; }
  .container { padding-left: 16px; padding-right: 16px; }
  .breadcrumb-nav .crumb-current { max-width: 240px; }
}
@media (max-width: 575px) {
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .article-meta { gap: 12px; font-size: 13px; }
  .cta-panel h2 { font-size: 24px; }
}
@media (max-width: 480px) {
  .brand-logo { font-size: 19px; }
  .logo-icon { width: 34px; height: 34px; font-size: 17px; }
  .nav-container { height: 64px; }
  .article-hero h1 { font-size: 26px; }
  .article-back-link { padding-bottom: 32px; }
}