/* roulang page: index */
:root {
  --primary: #6d5efc;
  --primary-light: #8b7cfd;
  --primary-dark: #4f3fd8;
  --secondary: #f5a524;
  --secondary-light: #fbbf24;
  --accent: #22d3ee;
  --bg-deep: #070b14;
  --bg-dark: #0c1220;
  --bg-card: #111a2e;
  --bg-card-hover: #16223b;
  --bg-soft: #191f36;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: rgba(148, 163, 184, 0.14);
  --border-light: rgba(148, 163, 184, 0.24);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 40px rgba(109, 94, 252, 0.22);
  --space-section: 96px;
  --space-section-sm: 60px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-primary: linear-gradient(135deg, #6d5efc 0%, #9b6cf5 50%, #c084fc 100%);
  --gradient-accent: linear-gradient(135deg, #f5a524 0%, #f97316 100%);
  --gradient-dark: linear-gradient(180deg, rgba(7, 11, 20, 0) 0%, #070b14 100%);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg-deep); color: var(--text-main); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; position: relative; }
.section-sm { padding: var(--space-section-sm) 0; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--secondary); background: rgba(245, 165, 36, 0.12); border: 1px solid rgba(245, 165, 36, 0.22); padding: 6px 16px; border-radius: 100px; letter-spacing: 0.5px; margin-bottom: 18px; }
.section-eyebrow i { font-size: 12px; }
.section-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; margin-bottom: 16px; background: linear-gradient(135deg, #fff 30%, #c7d2fe 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-desc { font-size: 16px; color: var(--text-muted); line-height: 1.8; }

/* ===== 顶部浮动导航 ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0 0; pointer-events: none; }
.dock-nav { pointer-events: auto; max-width: 1100px; margin: 0 auto; background: rgba(15, 23, 42, 0.82); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-radius: 60px; border: 1px solid var(--border); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05); display: flex; align-items: center; justify-content: space-between; padding: 10px 12px 10px 22px; transition: var(--transition); }
.dock-nav.scrolled { box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.06); }
.nav-brand { font-size: 18px; font-weight: 800; letter-spacing: 0.5px; color: #fff; display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.nav-brand .brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--secondary); box-shadow: 0 0 12px rgba(245, 165, 36, 0.6); flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { padding: 8px 18px; border-radius: 40px; font-size: 14px; font-weight: 400; color: var(--text-muted); white-space: nowrap; transition: var(--transition); }
.nav-links a:hover { color: #fff; background: rgba(109, 94, 252, 0.18); }
.nav-links a.active { color: #fff; background: var(--gradient-primary); box-shadow: 0 2px 16px rgba(109, 94, 252, 0.35); font-weight: 500; }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-cta .btn-login { padding: 9px 22px; border-radius: 40px; background: var(--gradient-accent); color: #0b1020; font-size: 14px; font-weight: 700; box-shadow: 0 4px 20px rgba(245, 165, 36, 0.3); transition: var(--transition); }
.nav-cta .btn-login:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245, 165, 36, 0.42); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); border: 1px solid var(--border); align-items: center; justify-content: center; font-size: 16px; color: #fff; }
.mobile-menu { display: none; position: fixed; top: 86px; left: 16px; right: 16px; background: rgba(13, 20, 36, 0.97); backdrop-filter: blur(24px); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 16px; box-shadow: var(--shadow-lg); z-index: 999; flex-direction: column; gap: 4px; }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 13px 18px; border-radius: 12px; color: var(--text-muted); font-size: 15px; font-weight: 500; }
.mobile-menu a:hover { background: rgba(109, 94, 252, 0.14); color: #fff; }
.mobile-menu a.active { background: var(--gradient-primary); color: #fff; }

/* ===== Hero ===== */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; padding: 160px 0 100px; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(7, 11, 20, 0.95) 30%, rgba(7, 11, 20, 0.78) 60%, rgba(7, 11, 20, 0.4) 100%); }
.hero::after { content: ''; position: absolute; inset: 0; background: var(--gradient-dark); }
.hero .container { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(109, 94, 252, 0.16); border: 1px solid rgba(109, 94, 252, 0.32); border-radius: 60px; padding: 7px 18px; font-size: 13px; font-weight: 500; color: #c7d2fe; margin-bottom: 28px; backdrop-filter: blur(8px); }
.hero-badge i { color: var(--secondary); }
.hero h1 { font-size: clamp(36px, 5.5vw, 60px); font-weight: 900; line-height: 1.18; letter-spacing: -0.02em; margin-bottom: 22px; }
.hero h1 .gradient-text { background: linear-gradient(135deg, #a78bfa 0%, #f5a524 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 17px; color: var(--text-muted); max-width: 560px; line-height: 1.9; margin-bottom: 36px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 52px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 30px; border-radius: 50px; font-size: 15px; font-weight: 600; transition: var(--transition); position: relative; overflow: hidden; }
.btn-primary { background: var(--gradient-primary); color: #fff; box-shadow: 0 6px 24px rgba(109, 94, 252, 0.4); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(109, 94, 252, 0.5); }
.btn-primary:active { transform: translateY(-1px); }
.btn-secondary { background: rgba(255, 255, 255, 0.06); color: #fff; border: 1px solid var(--border-light); backdrop-filter: blur(8px); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.3); transform: translateY(-3px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.hero-stats { display: flex; align-items: center; gap: 44px; flex-wrap: wrap; }
.stat-item .stat-num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-item .stat-num em { font-style: normal; color: var(--secondary); }
.stat-item .stat-label { font-size: 13px; color: var(--text-dim); margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }
.hero-scroll { position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-dim); font-size: 12px; letter-spacing: 2px; }
.hero-scroll i { animation: bounceDown 2s infinite; }
@keyframes bounceDown { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ===== 频道卡片 ===== */
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.channel-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-card); border: 1px solid var(--border); transition: var(--transition); min-height: 280px; display: flex; flex-direction: column; justify-content: flex-end; }
.channel-card:hover { transform: translateY(-6px); border-color: rgba(109, 94, 252, 0.4); box-shadow: var(--shadow-lg), var(--shadow-glow); }
.channel-card .channel-bg { position: absolute; inset: 0; z-index: 0; transition: transform 0.6s ease; }
.channel-card:hover .channel-bg { transform: scale(1.05); }
.channel-card .channel-bg img { width: 100%; height: 100%; object-fit: cover; }
.channel-card .channel-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(7, 11, 20, 0.1) 40%, rgba(7, 11, 20, 0.92) 100%); z-index: 1; }
.channel-card .channel-content { position: relative; z-index: 2; padding: 28px 26px; }
.channel-card .channel-icon { display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 14px; background: rgba(109, 94, 252, 0.2); border: 1px solid rgba(109, 94, 252, 0.3); color: #c7d2fe; font-size: 18px; margin-bottom: 16px; backdrop-filter: blur(6px); }
.channel-card h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.channel-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 18px; }
.channel-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 500; color: var(--secondary); }
.channel-link i { font-size: 12px; transition: transform 0.3s; }
.channel-card:hover .channel-link i { transform: translateX(4px); }

/* ===== 平台优势 ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 30px 26px; transition: var(--transition); }
.feature-card:hover { background: var(--bg-card-hover); transform: translateY(-4px); border-color: rgba(109, 94, 252, 0.35); box-shadow: var(--shadow-md); }
.feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: 16px; font-size: 22px; margin-bottom: 20px; }
.feature-icon.violet { background: rgba(109, 94, 252, 0.14); color: #a78bfa; border: 1px solid rgba(109, 94, 252, 0.22); }
.feature-icon.amber { background: rgba(245, 165, 36, 0.14); color: #fbbf24; border: 1px solid rgba(245, 165, 36, 0.22); }
.feature-icon.cyan { background: rgba(34, 211, 238, 0.14); color: #67e8f9; border: 1px solid rgba(34, 211, 238, 0.22); }
.feature-icon.green { background: rgba(52, 211, 153, 0.14); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, 0.22); }
.feature-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; color: #fff; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* ===== 内容列表 ===== */
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.content-card { display: flex; gap: 20px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px; transition: var(--transition); }
.content-card:hover { background: var(--bg-card-hover); border-color: rgba(109, 94, 252, 0.35); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.content-thumb { width: 120px; height: 100px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.content-body { flex: 1; min-width: 0; }
.content-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 12px; color: var(--text-dim); }
.content-meta .tag { padding: 2px 10px; border-radius: 40px; font-size: 12px; font-weight: 500; background: rgba(109, 94, 252, 0.14); color: #a78bfa; border: 1px solid rgba(109, 94, 252, 0.2); }
.content-body h3 { font-size: 16px; font-weight: 600; line-height: 1.5; margin-bottom: 8px; color: #fff; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.content-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--text-dim); font-size: 15px; background: var(--bg-card); border-radius: var(--radius-md); border: 1px dashed var(--border-light); }

/* ===== 流程步骤 ===== */
.flow-section { background: linear-gradient(180deg, var(--bg-deep) 0%, #111a2e 100%); position: relative; }
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.flow-grid::before { content: ''; position: absolute; top: 34px; left: 8%; right: 8%; height: 2px; background: linear-gradient(90deg, rgba(109, 94, 252, 0.1), rgba(109, 94, 252, 0.5), rgba(109, 94, 252, 0.1)); }
.flow-step { text-align: center; position: relative; padding: 0 10px; }
.flow-num { display: inline-flex; align-items: center; justify-content: center; width: 68px; height: 68px; border-radius: 50%; background: var(--bg-card); border: 2px solid var(--primary); color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 20px; box-shadow: 0 0 0 6px rgba(109, 94, 252, 0.1), var(--shadow-md); position: relative; z-index: 2; }
.flow-step h3 { font-size: 17px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.flow-step p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ===== 数据面板 ===== */
.data-panel { background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; position: relative; border-radius: var(--radius-lg); overflow: hidden; padding: 70px 50px; }
.data-panel::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(7, 11, 20, 0.94) 40%, rgba(7, 11, 20, 0.72) 100%); }
.data-panel .panel-content { position: relative; z-index: 2; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-bottom: 48px; }
.data-card { text-align: center; padding: 30px 20px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border); border-radius: var(--radius-md); backdrop-filter: blur(10px); transition: var(--transition); }
.data-card:hover { background: rgba(255, 255, 255, 0.07); transform: translateY(-4px); }
.data-card .data-icon { font-size: 28px; color: var(--secondary); margin-bottom: 14px; }
.data-card .data-num { font-size: 38px; font-weight: 800; color: #fff; line-height: 1.2; }
.data-card .data-num span { font-size: 18px; font-weight: 400; color: var(--text-muted); }
.data-card .data-label { font-size: 14px; color: var(--text-muted); margin-top: 6px; }

/* ===== FAQ ===== */
.faq-wrapper { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(109, 94, 252, 0.3); }
.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 26px; cursor: pointer; font-size: 16px; font-weight: 500; color: #fff; transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: #c7d2fe; }
.faq-item summary .faq-icon { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: rgba(109, 94, 252, 0.14); border: 1px solid rgba(109, 94, 252, 0.25); color: #a78bfa; font-size: 13px; flex-shrink: 0; transition: transform 0.4s; }
.faq-item[open] summary .faq-icon { transform: rotate(45deg); background: var(--gradient-primary); color: #fff; border-color: transparent; }
.faq-item .faq-answer { padding: 0 26px 24px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.faq-item .faq-answer p { margin-top: 2px; }

/* ===== CTA ===== */
.cta-wrap { background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat; border-radius: var(--radius-lg); padding: 80px 64px; text-align: center; position: relative; overflow: hidden; }
.cta-wrap::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(79, 63, 216, 0.88) 0%, rgba(109, 94, 252, 0.72) 60%, rgba(192, 132, 252, 0.5) 100%); }
.cta-wrap .cta-body { position: relative; z-index: 2; }
.cta-wrap h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-wrap p { font-size: 16px; color: rgba(255, 255, 255, 0.85); max-width: 560px; margin: 0 auto 36px; }
.cta-actions { display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn-light { background: #fff; color: var(--primary-dark); font-weight: 700; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2); }
.btn-light:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 14px 40px rgba(0, 0, 0, 0.3); }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, 0.5); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; transform: translateY(-3px); }

/* ===== 页脚 ===== */
.site-footer { background: #05080f; border-top: 1px solid var(--border); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 44px; margin-bottom: 50px; }
.footer-brand .logo-text { font-size: 20px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-dim); line-height: 1.8; max-width: 260px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--gradient-primary); border-radius: 2px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: var(--text-dim); transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul li a:hover { color: #c7d2fe; padding-left: 4px; }
.footer-col ul li a i { font-size: 10px; color: var(--primary-light); }
.footer-contact p { font-size: 14px; color: var(--text-dim); margin-bottom: 10px; display: flex; align-items: flex-start; gap: 10px; }
.footer-contact p i { margin-top: 3px; color: var(--primary-light); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 28px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
.footer-bottom p { font-size: 13px; color: var(--text-dim); }
.footer-bottom p a { color: var(--text-muted); }
.footer-bottom p a:hover { color: #fff; }

/* ===== focus ===== */
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; border-radius: 6px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --space-section: 72px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid::before { display: none; }
  .flow-step { margin-bottom: 28px; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .dock-nav { padding: 8px 10px 8px 18px; border-radius: 40px; }
  .hero { min-height: 100vh; padding: 130px 0 70px; }
  .hero-stats { gap: 24px; }
  .stat-divider { display: none; }
  .channel-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .data-panel { padding: 48px 24px; }
  .cta-wrap { padding: 54px 24px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-item .faq-answer { padding: 0 20px 20px; }
}
@media (max-width: 520px) {
  .dock-nav { padding: 8px 8px 8px 14px; }
  .nav-brand { font-size: 15px; }
  .hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .btn { width: 100%; justify-content: center; }
  .hero-actions { gap: 12px; }
  .feature-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: 1fr; gap: 16px; }
  .content-card { flex-direction: column; }
  .content-thumb { width: 100%; height: 160px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; max-width: 280px; }
  .section-title { font-size: 26px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --bg-primary: #0b0e14;
  --bg-secondary: #10151f;
  --bg-card: #161d29;
  --bg-card-hover: #1b2432;
  --bg-input: #0d1119;
  --accent: #f0b90b;
  --accent-strong: #ffd54a;
  --accent-soft: rgba(240, 185, 11, 0.12);
  --text-primary: #f2f5f9;
  --text-secondary: #9aa7ba;
  --text-muted: #6b7a90;
  --border: #232c3b;
  --border-light: #2d3848;
  --success: #2ecc8f;
  --warning: #f5a623;
  --danger: #e74c3c;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.4);
  --shadow-accent: 0 8px 30px rgba(240,185,11,0.18);
  --transition: 0.25s ease;
  --container-max: 1200px;
  --spacing-section: 96px;
  --spacing-section-mobile: 56px;
}

/* ===== Reset 与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; color: inherit; }
button { cursor: pointer; }
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
section { position: relative; }

/* ===== 导航栏 ===== */
.site-header {
  position: relative;
  z-index: 100;
  padding: 20px 0 8px;
  background: transparent;
}
.dock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(13, 17, 26, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 60px;
  padding: 10px 20px 10px 24px;
  box-shadow: var(--shadow-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.dock-nav:hover { border-color: var(--border-light); }
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  white-space: nowrap;
}
.brand-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.03);
  padding: 4px;
  border-radius: 40px;
}
.nav-links a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 30px;
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.nav-links a.active {
  color: #0b0e14;
  background: var(--accent);
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(240,185,11,0.3);
}
.nav-cta {
  display: flex;
  align-items: center;
}
.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: var(--accent);
  color: #0b0e14;
  font-size: 14px;
  font-weight: 700;
  border-radius: 40px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn-login:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  transition: background var(--transition);
}
.nav-toggle:hover { background: rgba(255,255,255,0.1); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 64px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-col ul li a i { font-size: 10px; color: var(--accent); }
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i { color: var(--accent); width: 18px; text-align: center; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: 13px;
}
.footer-bottom a { color: var(--text-secondary); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 页面 Hero ===== */
.page-hero {
  padding: 120px 0 80px;
  background:
    linear-gradient(135deg, rgba(11,14,20,0.88) 0%, rgba(11,14,20,0.72) 50%, rgba(240,185,11,0.08) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: 860px;
  text-align: center;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  border: 1px solid rgba(240,185,11,0.3);
  color: var(--accent);
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.hero-badge i { font-size: 13px; }
.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.page-hero h1 span {
  color: var(--accent);
}
.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0b0e14;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 50px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: 50px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(240,185,11,0.06);
  transform: translateY(-2px);
}

/* ===== 通用板块 ===== */
.section-block { padding: var(--spacing-section) 0; }
.section-block-alt { background: var(--bg-secondary); }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-header .section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
}
.section-header .header-line {
  width: 52px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  margin: 18px auto 0;
}

/* ===== 核心特点卡片 ===== */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.overview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.overview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.overview-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}
.overview-card:hover::before { opacity: 1; }
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 22px;
}
.overview-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.overview-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== 分步指南 ===== */
.step-guide {
  background: var(--bg-secondary);
}
.step-guide-inner {
  max-width: 860px;
  margin: 0 auto;
}
.step-list {
  position: relative;
}
.step-list::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--border));
}
.step-item {
  position: relative;
  padding: 0 0 40px 88px;
}
.step-item:last-child { padding-bottom: 0; }
.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  z-index: 1;
  box-shadow: 0 0 0 6px var(--bg-secondary);
}
.step-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.step-content:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-md);
}
.step-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.step-content h3 i { color: var(--accent); font-size: 16px; }
.step-content p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}
.step-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-top: 14px;
}

/* ===== 服务推荐卡片 ===== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.service-cover {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.service-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.service-card:hover .service-cover img { transform: scale(1.05); }
.service-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11,14,20,0.8) 100%);
}
.service-body {
  padding: 24px 26px 28px;
}
.service-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.service-body p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 16px;
}
.service-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
}
.badge i { color: var(--accent); font-size: 11px; }
.badge-primary {
  background: var(--accent-soft);
  border-color: rgba(240,185,11,0.25);
  color: var(--accent);
  font-weight: 600;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  transition: gap var(--transition);
}
.service-link:hover { gap: 10px; }
.service-link i { font-size: 12px; }

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item:hover { border-color: var(--border-light); }
.faq-item.active { border-color: rgba(240,185,11,0.35); box-shadow: var(--shadow-sm); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  width: 100%;
  text-align: left;
  transition: color var(--transition);
}
.faq-question i {
  color: var(--accent);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.85;
  border-top: 1px solid transparent;
}
.faq-item.active .faq-answer-inner {
  border-top-color: var(--border);
  padding-top: 18px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background:
    linear-gradient(135deg, rgba(240,185,11,0.06), transparent 60%),
    var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.cta-box {
  max-width: 900px;
  margin: 0 auto;
  background: linear-gradient(135deg, #161d29, #1b2432);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(240,185,11,0.08);
  filter: blur(60px);
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-box p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.cta-note i { color: var(--success); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --spacing-section: 72px; }
  .dock-nav {
    flex-wrap: wrap;
    border-radius: 20px;
    padding: 14px 18px;
  }
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    background: transparent;
    padding: 6px 0 0;
    border-top: 1px solid var(--border);
    margin-top: 8px;
    flex-wrap: wrap;
    gap: 4px;
  }
  .nav-links a { padding: 8px 14px; font-size: 13px; }
  .nav-cta { margin-left: auto; }
  .nav-toggle { display: none; }
  .overview-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .page-hero h1 { font-size: 38px; }
}

@media (max-width: 768px) {
  .dock-nav {
    padding: 10px 14px;
    gap: 12px;
  }
  .nav-brand { font-size: 15px; }
  .nav-links { gap: 2px; }
  .nav-links a { font-size: 12px; padding: 6px 10px; }
  .btn-login { padding: 8px 16px; font-size: 13px; }
  .page-hero { padding: 80px 0 56px; }
  .page-hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .section-header h2 { font-size: 26px; }
  .section-block { padding: 56px 0; }
  .overview-grid, .service-grid { grid-template-columns: 1fr; }
  .step-item { padding-left: 64px; }
  .step-number { width: 44px; height: 44px; font-size: 16px; }
  .step-list::before { left: 22px; }
  .cta-box { padding: 36px 24px; }
  .cta-box h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom p { width: 100%; }
}

@media (max-width: 520px) {
  .dock-nav {
    padding: 10px 12px;
    border-radius: 16px;
  }
  .nav-brand { font-size: 14px; }
  .nav-brand .brand-dot { width: 8px; height: 8px; }
  .btn-login span { display: none; }
  .nav-links {
    gap: 0;
    justify-content: space-between;
  }
  .nav-links a {
    padding: 6px 8px;
    font-size: 11px;
  }
  .page-hero h1 { font-size: 26px; }
  .hero-actions { flex-direction: column; align-items: center; width: 100%; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .step-item { padding-left: 54px; padding-bottom: 32px; }
  .step-number { width: 36px; height: 36px; font-size: 14px; border-width: 2px; }
  .step-list::before { left: 18px; }
  .step-content { padding: 20px 18px; }
  .step-content h3 { font-size: 16px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn-primary, .cta-actions .btn-outline { width: 100%; justify-content: center; }
}

/* ===== 无障碍 ===== */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* roulang page: category2 */
:root {
  --primary: #22c9b6;
  --primary-dark: #18a696;
  --secondary: #f6b84b;
  --bg-deep: #070d17;
  --bg-dark: #0d1524;
  --bg-card: #131c2e;
  --bg-elev: #1a2539;
  --text-main: #edf2f9;
  --text-body: #b9c3d4;
  --text-weak: #76839a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --radius: 16px;
  --radius-lg: 22px;
  --radius-sm: 10px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.25);
  --transition: 0.25s ease;
  --container: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", -apple-system, sans-serif;
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Dock Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0 0;
  background: linear-gradient(to bottom, rgba(7, 13, 23, 0.96) 0%, rgba(7, 13, 23, 0.82) 70%, transparent 100%);
}
.dock-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(13, 21, 36, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 60px;
  padding: 10px 14px 10px 22px;
  box-shadow: var(--shadow-sm);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text-main);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.brand-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 12px rgba(246, 184, 75, 0.7);
}
.nav-links { display: flex; align-items: center; gap: 4px; margin: 0 auto; }
.nav-links a {
  position: relative;
  padding: 9px 14px;
  border-radius: 30px;
  font-size: 14px;
  color: var(--text-body);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.06); }
.nav-links a.active { color: #06121a; background: var(--primary); font-weight: 600; }
.nav-cta { display: flex; align-items: center; }
.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 30px;
  background: linear-gradient(135deg, var(--secondary), #ff9d3c);
  color: #1a1204;
  font-size: 13px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 6px 14px rgba(246, 184, 75, 0.25);
}
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(246, 184, 75, 0.35); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 15px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ===== Buttons ===== */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #16b3a0);
  color: #061511;
  box-shadow: 0 10px 22px rgba(34, 201, 182, 0.28);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 32px rgba(34, 201, 182, 0.38); }
.btn-primary:active { transform: translateY(-1px); }
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-3px); }
.btn-ghost:focus, .btn-primary:focus, .nav-toggle:focus, .nav-links a:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 130px 0 100px;
  margin-top: -92px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7, 13, 23, 0.96) 22%, rgba(7, 13, 23, 0.74) 62%, rgba(7, 13, 23, 0.42) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border: 1px solid rgba(34, 201, 182, 0.4);
  background: rgba(34, 201, 182, 0.12);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 30px;
  margin-bottom: 20px;
}
.page-hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 16px;
}
.page-hero h1 span { color: var(--primary); }
.page-hero p {
  max-width: 640px;
  color: var(--text-body);
  font-size: 17px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Stats ===== */
.stats-section { padding: 52px 0 26px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-4px); border-color: rgba(34, 201, 182, 0.35); box-shadow: var(--shadow); }
.stat-num { font-size: 36px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-label { margin-top: 6px; color: var(--text-weak); font-size: 13px; }

/* ===== Section Head ===== */
.section-head { text-align: center; max-width: 680px; margin: 0 auto 46px; }
.section-kicker {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 30px;
  background: rgba(34, 201, 182, 0.1);
  border: 1px solid rgba(34, 201, 182, 0.25);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 800; margin-bottom: 12px; line-height: 1.3; }
.section-head p { color: var(--text-weak); font-size: 15px; }

/* ===== Service Cards ===== */
.featured-section { padding: 60px 0; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); border-color: rgba(34, 201, 182, 0.4); box-shadow: var(--shadow); }
.service-card .card-media { height: 150px; overflow: hidden; }
.service-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .card-media img { transform: scale(1.06); }
.service-card .card-body { padding: 20px 20px 24px; }
.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(34, 201, 182, 0.12);
  color: var(--primary);
  margin-bottom: 10px;
}
.service-card .card-body h3 { font-size: 18px; margin-bottom: 8px; }
.service-card .card-body p { color: var(--text-weak); font-size: 13px; line-height: 1.7; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}
.card-link i { transition: transform 0.25s ease; font-size: 12px; }
.card-link:hover i { transform: translateX(4px); }

/* ===== Process ===== */
.process-section {
  padding: 70px 0;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.process-item {
  text-align: center;
  padding: 26px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.process-item:hover { transform: translateY(-4px); border-color: rgba(246, 184, 75, 0.4); }
.process-step {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary), #ff9d3c);
  color: #1a1204;
  font-weight: 800;
  font-size: 19px;
  box-shadow: 0 8px 20px rgba(246, 184, 75, 0.25);
}
.process-item h3 { font-size: 16px; margin-bottom: 8px; }
.process-item p { font-size: 13px; color: var(--text-weak); line-height: 1.7; }

/* ===== Advantage ===== */
.advantage-section { padding: 70px 0; }
.advantage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; }
.advantage-media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.advantage-media img { width: 100%; height: 360px; object-fit: cover; }
.advantage-content .section-kicker { margin-bottom: 10px; }
.advantage-content h2 { font-size: clamp(22px, 3vw, 30px); line-height: 1.3; margin-bottom: 16px; }
.advantage-content > p { color: var(--text-weak); margin-bottom: 22px; font-size: 15px; }
.advantage-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
.advantage-list li {
  display: flex;
  gap: 10px;
  padding: 13px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-body);
  transition: var(--transition);
}
.advantage-list li i { color: var(--primary); font-size: 15px; margin-top: 3px; flex-shrink: 0; }
.advantage-list li:hover { border-color: rgba(34, 201, 182, 0.35); transform: translateY(-2px); }

/* ===== FAQ ===== */
.faq-section { padding: 70px 0; background: var(--bg-dark); border-top: 1px solid var(--border); }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}
.faq-q i { color: var(--primary); font-size: 13px; transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 22px 20px; color: var(--text-weak); font-size: 14px; line-height: 1.8; }
.faq-item.open .faq-a { display: block; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.cta-section .cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 13, 23, 0.95), rgba(13, 21, 36, 0.72));
}
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 700px; margin: 0 auto; }
.cta-content h2 { font-size: clamp(24px, 3.4vw, 38px); margin-bottom: 14px; }
.cta-content p { color: var(--text-body); margin-bottom: 28px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: #070c15; border-top: 1px solid var(--border); padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 38px; border-bottom: 1px solid var(--border); }
.logo-text { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 14px; }
.footer-brand p { color: var(--text-weak); font-size: 13px; line-height: 1.8; max-width: 280px; }
.footer-col h4 { font-size: 15px; margin-bottom: 16px; color: var(--text-main); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: var(--text-weak);
  font-size: 13px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul a i { font-size: 10px; color: var(--primary); }
.footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact p { color: var(--text-weak); font-size: 13px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.footer-contact p i { color: var(--primary); font-size: 13px; width: 16px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 22px; font-size: 12px; color: var(--text-weak); flex-wrap: wrap; }
.footer-bottom a { color: var(--text-body); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .site-header { padding-top: 12px; }
  .dock-nav { flex-wrap: wrap; border-radius: 26px; padding: 12px 14px; gap: 12px; }
  .nav-brand { flex: 1; }
  .nav-links {
    display: none;
    width: 100%;
    order: 5;
    margin: 6px 0 2px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--bg-dark);
    border-radius: 20px;
    padding: 14px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { text-align: center; padding: 11px; }
  .nav-toggle { display: inline-flex; }
  .page-hero { padding: 110px 0 70px; margin-top: -86px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .service-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-num { font-size: 28px; }
  .process-grid { grid-template-columns: 1fr; }
  .advantage-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 100px 0 56px; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .cta-actions .btn-primary, .cta-actions .btn-ghost { width: 100%; }
}

/* roulang page: article */
:root {
    --bg-body: #070d18;
    --bg-deep: #0b1520;
    --bg-card: #111b2b;
    --bg-card-hover: #16233a;
    --bg-input: rgba(255, 255, 255, 0.06);
    --text-primary: #eef2f8;
    --text-secondary: #b9c7de;
    --text-muted: #7c8fa8;
    --text-invert: #0a0f18;
    --primary: #f0b94f;
    --primary-hover: #f7c86d;
    --secondary: #37a6f0;
    --secondary-hover: #62bcf5;
    --success: #22c55e;
    --warning: #f37b3f;
    --danger: #e2505a;
    --border: rgba(255, 255, 255, 0.08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 30px;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 36px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.55);
    --transition: all 0.3s ease;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --container-width: 1200px;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: var(--font-main);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img {
    max-width: 100%;
    display: block;
    height: auto;
}
a {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--secondary-hover);
}
button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    background: none;
}
ul,
ol {
    list-style: none;
}
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}
.narrow {
    max-width: 860px;
}
.section {
    padding: 80px 0;
    position: relative;
}

/* ===== 站点头部 ===== */
.site-header {
    position: sticky;
    top: 16px;
    z-index: 200;
    padding: 0 16px;
    pointer-events: none;
}
.site-header .container {
    pointer-events: auto;
}
.dock-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: rgba(13, 22, 36, 0.88);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 50px;
    padding: 10px 14px 10px 24px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55);
    transition: var(--transition);
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 1px;
    white-space: nowrap;
}
.brand-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--secondary);
    box-shadow: 0 0 0 4px rgba(55, 166, 240, 0.22), 0 0 24px rgba(55, 166, 240, 0.8);
    margin-right: 2px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
}
.nav-links a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 50px;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}
.nav-links a.active {
    color: var(--text-primary);
    background: rgba(240, 185, 79, 0.16);
    box-shadow: inset 0 0 0 1px rgba(240, 185, 79, 0.2);
}
.nav-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.btn-login {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary), #d99324);
    color: #0a0f18;
    font-weight: 700;
    font-size: 14px;
    padding: 9px 22px;
    border-radius: 50px;
    white-space: nowrap;
    transition: var(--transition);
    box-shadow: 0 4px 18px rgba(240, 185, 79, 0.35);
}
.btn-login:hover {
    background: linear-gradient(135deg, var(--primary-hover), #eaaa3a);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(240, 185, 79, 0.45);
    color: #0a0f18;
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}
.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
}

/* ===== 文章Hero区 ===== */
.article-hero {
    position: relative;
    padding: 110px 0 70px;
    background: linear-gradient(135deg, rgba(7, 13, 24, 0.94), rgba(13, 24, 40, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    margin-top: -76px;
}
.article-hero::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -20%;
    width: 640px;
    height: 640px;
    background: radial-gradient(circle, rgba(240, 185, 79, 0.15), transparent 65%);
    pointer-events: none;
}
.article-hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(55, 166, 240, 0.12), transparent 60%);
    pointer-events: none;
}
.article-hero .container {
    position: relative;
    z-index: 1;
    max-width: 920px;
    text-align: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(240, 185, 79, 0.14);
    border: 1px solid rgba(240, 185, 79, 0.3);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    letter-spacing: 1px;
    margin-bottom: 22px;
    backdrop-filter: blur(8px);
}
.article-hero h1 {
    font-size: clamp(30px, 4vw, 46px);
    font-weight: 800;
    line-height: 1.28;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.article-hero .hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 26px;
    line-height: 1.7;
}
.hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--text-muted);
}
.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.hero-meta i {
    color: var(--primary);
    font-size: 13px;
}

/* ===== 文章主体 ===== */
.article-main {
    padding: 64px 0 40px;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 36px;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}
.breadcrumb a {
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.breadcrumb a:hover {
    color: var(--secondary);
}
.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.25);
}
.breadcrumb .current {
    color: var(--text-primary);
    font-weight: 500;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.article-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
}
.article-content h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 18px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
}
.article-content h3 {
    font-size: 21px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 30px 0 14px;
    line-height: 1.4;
}
.article-content p {
    margin-bottom: 20px;
}
.article-content a {
    color: var(--secondary);
    border-bottom: 1px solid rgba(55, 166, 240, 0.3);
}
.article-content a:hover {
    color: var(--secondary-hover);
    border-bottom-color: var(--secondary-hover);
}
.article-content ul,
.article-content ol {
    margin: 0 0 22px;
    padding-left: 24px;
}
.article-content ul li,
.article-content ol li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 4px;
}
.article-content ul li::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
}
.article-content ol {
    list-style: decimal;
}
.article-content ol li::before {
    display: none;
}
.article-content blockquote {
    margin: 28px 0;
    padding: 22px 28px;
    background: rgba(240, 185, 79, 0.08);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
}
.article-content blockquote::before {
    content: '\201C';
    font-size: 48px;
    color: var(--primary);
    position: absolute;
    top: 6px;
    left: 14px;
    opacity: 0.5;
}
.article-content img {
    border-radius: var(--radius-md);
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}
.article-content table {
    width: 100%;
    margin: 24px 0;
    border-collapse: collapse;
    font-size: 15px;
}
.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}
.article-content table th {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-weight: 600;
}

/* 文章未找到 */
.article-notfound {
    text-align: center;
    padding: 80px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.article-notfound i {
    font-size: 52px;
    color: var(--warning);
    margin-bottom: 20px;
}
.article-notfound h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 14px;
}
.article-notfound p {
    color: var(--text-muted);
    margin-bottom: 26px;
}
.article-notfound .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), #d99324);
    color: #0a0f18;
    font-weight: 700;
    padding: 12px 30px;
    border-radius: 50px;
    transition: var(--transition);
}
.article-notfound .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(240, 185, 79, 0.4);
    color: #0a0f18;
}

/* 分享条 */
.article-share {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 32px;
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}
.article-share span {
    color: var(--text-muted);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.share-links {
    display: flex;
    gap: 10px;
}
.share-links a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 15px;
    transition: var(--transition);
}
.share-links a:hover {
    background: rgba(240, 185, 79, 0.15);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}
.article-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
}
.article-back:hover {
    color: var(--secondary);
    border-color: var(--secondary);
}

/* ===== 最新资讯墙 ===== */
.latest-section {
    padding: 72px 0;
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
.latest-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(240, 185, 79, 0.3), transparent);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}
.section-head h2 {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.3;
    position: relative;
    padding-left: 16px;
}
.section-head h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 5px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
}
.section-head .section-subtitle {
    color: var(--text-muted);
    font-size: 15px;
    width: 100%;
    margin-top: 8px;
}
.section-head .section-more {
    color: var(--text-muted);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    padding: 8px 18px;
    border-radius: 50px;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.section-head .section-more:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(240, 185, 79, 0.07);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.news-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(240, 185, 79, 0.25);
}
.news-card .news-cover {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-card);
}
.news-card .news-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.news-card:hover .news-cover img {
    transform: scale(1.06);
}
.news-card .news-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(6, 10, 18, 0.75), transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 16px;
}
.news-card .news-tag {
    font-size: 12px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 30px;
    background: rgba(240, 185, 79, 0.9);
    color: #0a0f18;
    letter-spacing: 0.5px;
}
.news-card .news-body {
    padding: 20px 22px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-card .news-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 12px;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card:hover .news-body h3 {
    color: var(--primary);
}
.news-card .news-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card .news-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.news-card .news-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ===== 分类频道 ===== */
.channel-section {
    padding: 72px 0;
    background: var(--bg-body);
}
.channel-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.channel-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 260px;
    display: flex;
    align-items: flex-end;
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: var(--transition);
}
.channel-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.channel-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(6, 10, 18, 0.9) 0%, rgba(6, 10, 18, 0.25) 60%, rgba(6, 10, 18, 0.1) 100%);
}
.channel-card:hover img {
    transform: scale(1.06);
}
.channel-card:hover {
    border-color: rgba(240, 185, 79, 0.3);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.channel-card .channel-info {
    position: relative;
    z-index: 1;
    padding: 26px;
    width: 100%;
}
.channel-card .channel-info h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.channel-card .channel-info h3 i {
    color: var(--primary);
    font-size: 16px;
}
.channel-card .channel-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
    opacity: 0.85;
}
.channel-card .channel-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    padding: 7px 16px;
    border-radius: 50px;
    border: 1px solid rgba(240, 185, 79, 0.35);
    background: rgba(240, 185, 79, 0.1);
    transition: var(--transition);
}
.channel-card .channel-link:hover {
    background: var(--primary);
    color: #0a0f18;
    box-shadow: 0 4px 18px rgba(240, 185, 79, 0.35);
}

/* ===== FAQ ===== */
.faq-section {
    padding: 72px 0;
    background: linear-gradient(180deg, var(--bg-deep), var(--bg-body));
    border-top: 1px solid var(--border);
}
.faq-section .section-head {
    justify-content: center;
    text-align: center;
}
.faq-section .section-head h2 {
    padding-left: 0;
}
.faq-section .section-head h2::before {
    display: none;
}
.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: rgba(240, 185, 79, 0.2);
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
    user-select: none;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item[open] summary {
    color: var(--primary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}
.faq-item[open] summary::after {
    transform: rotate(180deg);
    color: var(--primary);
}
.faq-answer {
    padding: 18px 24px 22px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
    padding: 80px 0;
    position: relative;
    background: linear-gradient(135deg, rgba(7, 13, 24, 0.92), rgba(13, 24, 40, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    text-align: center;
    border-top: 1px solid var(--border);
}
.cta-section .container {
    position: relative;
    z-index: 1;
    max-width: 700px;
}
.cta-section h2 {
    font-size: 34px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
}
.cta-section p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 30px;
}
.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: linear-gradient(135deg, var(--primary), #d99324);
    color: #0a0f18;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 34px;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 8px 28px rgba(240, 185, 79, 0.35);
}
.btn-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 40px rgba(240, 185, 79, 0.45);
    color: #0a0f18;
}
.btn-cta-ghost {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    padding: 13px 28px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}
.btn-cta-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.35);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.site-footer {
    background: #050a12;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 64px 0 20px;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(240, 185, 79, 0.25), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 10px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    position: relative;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 26px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    color: var(--text-secondary);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: var(--transition);
    padding: 4px 0;
}
.footer-col ul li a i {
    font-size: 10px;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-col ul li a:hover i {
    color: var(--primary);
}
.footer-contact p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-contact p i {
    color: var(--primary);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
}
.footer-bottom a {
    color: var(--text-muted);
}
.footer-bottom a:hover {
    color: var(--primary);
}

/* ===== 返回顶部 ===== */
.back-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 99;
    box-shadow: var(--shadow-sm);
}
.back-top:hover {
    background: var(--primary);
    color: #0a0f18;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(240, 185, 79, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .section {
        padding: 64px 0;
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .channel-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .article-content {
        padding: 36px 28px;
    }
}
@media (max-width: 768px) {
    .site-header {
        top: 10px;
        padding: 0 10px;
    }
    .dock-nav {
        flex-wrap: wrap;
        border-radius: 24px;
        padding: 12px 16px;
    }
    .nav-links {
        order: 3;
        flex-basis: 100%;
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 14px 0 6px;
        border-top: 1px solid var(--border);
        margin-top: 10px;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        display: block;
        width: 100%;
        text-align: center;
        padding: 12px;
        border-radius: 12px;
    }
    .nav-cta .btn-login {
        padding: 8px 16px;
        font-size: 13px;
    }
    .nav-toggle {
        display: flex;
    }
    .article-hero {
        padding: 130px 0 50px;
        margin-top: -86px;
    }
    .article-hero h1 {
        font-size: 28px;
    }
    .article-hero .hero-desc {
        font-size: 15px;
    }
    .article-main {
        padding: 40px 0 30px;
    }
    .article-content {
        padding: 28px 20px;
        font-size: 15px;
    }
    .article-content h2 {
        font-size: 22px;
    }
    .section-head h2 {
        font-size: 24px;
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .channel-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    .channel-card {
        min-height: 210px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}
@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    .dock-nav {
        padding: 10px 12px;
        gap: 8px;
    }
    .nav-brand {
        font-size: 15px;
    }
    .nav-brand .brand-dot {
        width: 9px;
        height: 9px;
    }
    .nav-cta .btn-login {
        width: 38px;
        height: 38px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
        font-size: 14px;
    }
    .nav-cta .btn-login span {
        display: none;
    }
    .article-hero {
        padding: 130px 0 44px;
    }
    .article-hero h1 {
        font-size: 24px;
        line-height: 1.35;
    }
    .hero-meta {
        gap: 12px;
        font-size: 13px;
    }
    .article-content {
        padding: 22px 16px;
        border-radius: var(--radius-md);
    }
    .article-share {
        padding: 14px 16px;
        flex-direction: column;
        text-align: center;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .back-top {
        bottom: 18px;
        right: 18px;
        width: 40px;
        height: 40px;
    }
    .cta-section h2 {
        font-size: 26px;
    }
}

/* roulang page: category3 */
:root {
  --primary: #38bdf8;
  --primary-rgb: 56, 189, 248;
  --secondary: #34d399;
  --secondary-rgb: 52, 211, 153;
  --accent: #fbbf24;
  --bg: #080d18;
  --bg-deep: #050912;
  --bg-soft: #0d1526;
  --bg-card: #101b30;
  --bg-card-hover: #172641;
  --text: #e8f0fb;
  --text-muted: #8ea4be;
  --text-weak: #5c7290;
  --border: rgba(148, 180, 220, 0.12);
  --border-strong: rgba(56, 189, 248, 0.35);
  --radius: 16px;
  --radius-lg: 26px;
  --radius-sm: 10px;
  --shadow: 0 24px 50px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 10px 28px rgba(0, 0, 0, 0.35);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button, input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

i {
  vertical-align: middle;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ========== Header / Dock Nav ========== */
.site-header {
  position: sticky;
  top: 18px;
  z-index: 1000;
  padding: 0 20px;
}

.dock-nav {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  background: rgba(10, 18, 32, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 60px;
  padding: 12px 18px 12px 24px;
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.45);
  transition: var(--transition);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.4px;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-brand:hover {
  color: var(--primary);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 12px rgba(52, 211, 153, 0.7);
  flex-shrink: 0;
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 40px;
  padding: 4px;
}

.nav-links a {
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

.nav-links a.active {
  color: #08121f;
  background: linear-gradient(135deg, var(--primary), #22c9a0);
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.28);
}

.nav-cta .btn-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--secondary), #0fb98a);
  color: #07120d;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 30px;
  box-shadow: 0 6px 20px rgba(52, 211, 153, 0.3);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-cta .btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(52, 211, 153, 0.42);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  cursor: pointer;
  color: var(--text);
  font-size: 16px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 150px 0 80px;
  background-image: url("/assets/images/backpic/back-2.png");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5, 9, 18, 0.92) 0%, rgba(8, 13, 24, 0.82) 45%, rgba(10, 18, 32, 0.72) 100%);
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.16), transparent 65%);
  pointer-events: none;
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 30px;
  margin-bottom: 22px;
  letter-spacing: 0.5px;
}

.hero-badge i {
  font-size: 12px;
}

.hero h1 {
  font-size: 50px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 34px;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 30px;
  border-radius: 40px;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #1fb8a8);
  color: #06121d;
  box-shadow: 0 8px 26px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(56, 189, 248, 0.48);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.trust-item i {
  color: var(--secondary);
  font-size: 14px;
}

/* ========== Stats Band ========== */
.stats-band {
  padding: 0;
  position: relative;
  z-index: 3;
  margin-top: -36px;
}

.stats-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.stat-item {
  text-align: center;
  padding: 12px 8px;
}

.stat-num {
  font-size: 38px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-num small {
  font-size: 16px;
  font-weight: 600;
  margin-left: 2px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.4px;
}

/* ========== Section Base ========== */
.section {
  padding: 90px 0;
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 54px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.22);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========== Feature Cards ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
  background: var(--bg-card-hover);
}

.feature-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-card:hover .feature-img img {
  transform: scale(1.06);
}

.feature-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-card), transparent 60%);
}

.feature-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(5, 10, 18, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 30px;
}

.feature-body {
  padding: 26px 24px 30px;
}

.feature-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-body h3 i {
  color: var(--primary);
  font-size: 18px;
}

.feature-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 18px;
}

.feature-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.feature-link:hover {
  gap: 10px;
  color: var(--primary);
}

/* ========== Process ========== */
.process-section {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 620px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(56, 189, 248, 0.08), transparent 70%);
  pointer-events: none;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  counter-reset: step;
  position: relative;
  z-index: 2;
}

.process-item {
  position: relative;
  background: rgba(16, 27, 48, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 24px 28px;
  transition: var(--transition);
}

.process-item:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}

.process-item::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 22px;
  right: 22px;
  font-size: 34px;
  font-weight: 800;
  color: rgba(56, 189, 248, 0.14);
}

.process-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  margin-bottom: 20px;
  transition: var(--transition);
}

.process-item:hover .process-icon {
  background: rgba(56, 189, 248, 0.18);
  box-shadow: 0 0 22px rgba(56, 189, 248, 0.2);
}

.process-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Split Detail ========== */
.detail-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.detail-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.detail-media img {
  width: 100%;
  height: 440px;
  object-fit: cover;
}

.detail-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 9, 18, 0.5), transparent 60%);
}

.detail-float {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(8, 14, 26, 0.72);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 2;
}

.detail-float i {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.detail-float p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.detail-float strong {
  color: var(--text);
  font-size: 14px;
  display: block;
  margin-bottom: 2px;
}

.detail-content h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}

.detail-content p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 20px;
}

.detail-list {
  margin: 24px 0 30px;
  display: grid;
  gap: 14px;
}

.detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

.detail-list li i {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.12);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg-deep);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}

.faq-q i {
  color: var(--secondary);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-q i {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-a-inner {
  padding: 0 26px 24px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid transparent;
}

.faq-item.open .faq-a-inner {
  border-top-color: var(--border);
  padding-top: 16px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 90px 0;
  position: relative;
}

.cta-card {
  position: relative;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  padding: 70px 50px;
  text-align: center;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5, 10, 18, 0.9), rgba(8, 16, 30, 0.82));
  z-index: 1;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-content p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 30px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 48px;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-col ul a i {
  font-size: 10px;
  color: var(--primary);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--text);
  transform: translateX(4px);
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.footer-contact p i {
  color: var(--secondary);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-weak);
}

.footer-bottom a {
  color: var(--text-muted);
  transition: var(--transition);
}

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

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 40px;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 14px);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 18, 32, 0.96);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border);
    padding: 14px;
    box-shadow: var(--shadow);
  }
  .nav-links.open {
    display: flex;
    align-items: stretch;
  }
  .nav-links a {
    padding: 13px 18px;
    border-radius: 14px;
    text-align: center;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-cta {
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }
  .section {
    padding: 64px 0;
  }
  .hero {
    padding: 120px 0 70px;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .stats-wrap {
    grid-template-columns: repeat(2, 1fr);
    padding: 28px 20px;
  }
  .stat-num {
    font-size: 28px;
  }
  .section-title {
    font-size: 26px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .detail-media img {
    height: 320px;
  }
  .cta-card {
    padding: 48px 24px;
  }
  .cta-content h2 {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .dock-nav {
    padding: 10px 14px 10px 18px;
    gap: 10px;
  }
  .nav-brand {
    font-size: 15px;
  }
  .nav-cta .btn-login {
    padding: 8px 14px;
    font-size: 13px;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero-badge {
    font-size: 12px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-wrap {
    grid-template-columns: 1fr 1fr;
    padding: 20px 14px;
    gap: 12px;
  }
  .stat-num {
    font-size: 24px;
  }
  .stat-label {
    font-size: 12px;
  }
  .detail-list li {
    font-size: 13px;
  }
  .faq-q {
    padding: 18px 18px;
    font-size: 15px;
  }
  .faq-a-inner {
    padding: 0 18px 20px;
  }
}