/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #0c1929;
  --primary-light: #14283d;
  --primary-dark: #060d18;
  --accent: #c9a35c;
  --accent-dark: #a8833e;
  --accent-light: #e8c685;
  --bg-light: #f4f0e8;
  --bg-white: #ffffff;
  --bg-dark: #081120;
  --text-main: #1a2332;
  --text-weak: #6b7787;
  --text-white: #f0f3f6;
  --border: #e2ddd2;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(8, 17, 32, .06);
  --shadow-md: 0 10px 30px rgba(8, 17, 32, .10);
  --shadow-lg: 0 20px 50px rgba(8, 17, 32, .18);
  --space-section: 110px;
  --space-section-sm: 70px;
}

/* ============ 基础重置 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .3s, background .3s, border-color .3s, box-shadow .3s; }
button, input, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

/* ============ 通用布局 ============ */
.grid-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 { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  background: rgba(201, 163, 92, .14);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-title { font-size: 38px; font-weight: 800; line-height: 1.25; color: var(--primary); letter-spacing: -.5px; }
.section-sub { font-size: 16px; color: var(--text-weak); margin-top: 14px; }
.section-title.light { color: #fff; }
.section-sub.light { color: rgba(255, 255, 255, .72); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .3s ease;
  text-align: center;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 18px rgba(201, 163, 92, .35);
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201, 163, 92, .45);
}
.btn-outline {
  border-color: rgba(255, 255, 255, .7);
  color: #fff;
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-dark {
  background: var(--primary);
  color: #fff;
}
.btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }
.btn-play {
  width: 62px; height: 62px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(255,255,255,.7);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  transition: all .3s;
}
.btn-play:hover { background: var(--accent); border-color: var(--accent); transform: scale(1.08); color: var(--primary-dark); }

/* ============ 标签 / 徽章 ============ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(201,163,92,.16);
  color: var(--accent-dark);
}
.badge-dark { background: rgba(255,255,255,.14); color: #fff; }
.badge-solid { background: var(--accent); color: var(--primary-dark); }

/* ============ 顶部 Header ============ */
.site-header { position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 24px rgba(0,0,0,.12); }
.header-top { background: var(--primary); }
.header-top-inner { padding: 0 !important; min-height: 72px; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; padding: 14px 0; }
.brand-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(201,163,92,.4);
}
.brand-text { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; line-height: 1.2; }
.brand-text small { display: block; font-size: 11px; font-weight: 400; color: rgba(255,255,255,.55); letter-spacing: 1px; }
.header-search { margin: 0 12px; }
.search-form { display: flex; align-items: center; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.14); border-radius: 999px; padding: 3px 3px 3px 16px; transition: all .3s; }
.search-form:focus-within { background: rgba(255,255,255,.18); border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,163,92,.2); }
.search-form input { background: transparent; border: none; outline: none; color: #fff; width: 190px; font-size: 14px; }
.search-form input::placeholder { color: rgba(255,255,255,.45); }
.search-form button { background: var(--accent); border: none; color: var(--primary-dark); width: 34px; height: 34px; border-radius: 50%; cursor: pointer; transition: background .3s; }
.search-form button:hover { background: var(--accent-light); }
.header-cta { margin-left: 8px; }

/* 第二层频道导航 */
.channel-nav { background: var(--bg-dark); border-top: 1px solid rgba(255,255,255,.05); }
.channel-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tab {
  position: relative;
  padding: 15px 22px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,.7);
  white-space: nowrap;
  transition: all .3s;
}
.channel-tab::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 0; height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--accent);
  transition: width .3s;
}
.channel-tab:hover { color: #fff; background: rgba(255,255,255,.04); }
.channel-tab.active { color: var(--accent); }
.channel-tab.active::after { width: 24px; }

/* ============ Hero 首屏 ============ */
.hero-section {
  position: relative;
  background:
    linear-gradient(120deg, rgba(8,17,32,.94) 0%, rgba(12,25,41,.82) 42%, rgba(8,17,32,.5) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  min-height: 660px;
  display: flex;
  align-items: center;
  padding: 120px 0 100px;
  color: #fff;
  overflow: hidden;
}
.hero-section::after {
  content: "";
  position: absolute;
  left: -200px; bottom: -200px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,163,92,.18), transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(201,163,92,.18); border: 1px solid rgba(201,163,92,.3); color: var(--accent-light); padding: 6px 18px; border-radius: 999px; font-size: 13px; font-weight: 700; letter-spacing: 1px; margin-bottom: 24px; }
.hero-tag i { font-size: 12px; }
.hero-title { font-size: 56px; font-weight: 900; line-height: 1.12; letter-spacing: -1px; margin-bottom: 20px; }
.hero-title span { color: var(--accent); }
.hero-sub { font-size: 18px; color: rgba(255,255,255,.75); max-width: 600px; line-height: 1.8; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-bottom: 30px; }
.hero-note { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; color: rgba(255,255,255,.55); font-size: 14px; }
.hero-note .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; margin-right: 6px; }

/* ============ 统计数据条 ============ */
.stats-section {
  background: var(--primary);
  padding: 40px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 16px 10px; position: relative; }
.stat-item::after { content: ""; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 44px; background: rgba(255,255,255,.1); }
.stat-item:last-child::after { display: none; }
.stat-num { font-size: 38px; font-weight: 900; color: var(--accent); line-height: 1.2; }
.stat-label { font-size: 14px; color: rgba(255,255,255,.6); margin-top: 6px; letter-spacing: 1px; }

/* ============ 核心说明 About ============ */
.about-section { background: var(--bg-light); }
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.about-text h2 { font-size: 36px; font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 18px; }
.about-text p { color: var(--text-weak); font-size: 16px; margin-bottom: 22px; }
.about-list { margin-top: 26px; }
.about-list li { display: flex; gap: 14px; align-items: flex-start; padding: 10px 0; }
.about-list .ico {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px;
  background: rgba(201,163,92,.14); color: var(--accent-dark);
  display: inline-flex; align-items: center; justify-content: center; font-size: 16px;
}
.about-list strong { display: block; font-size: 16px; color: var(--primary); }
.about-list span { font-size: 14px; color: var(--text-weak); }
.about-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-visual img { width: 100%; height: 420px; object-fit: cover; }
.about-visual::before { content: ""; position: absolute; inset: 0; background: linear-gradient(240deg, rgba(201,163,92,.2), transparent 60%); }
.about-card-float {
  position: absolute; left: 20px; bottom: 20px; right: 20px;
  background: rgba(8,17,32,.82); backdrop-filter: blur(12px);
  border-radius: var(--radius); padding: 18px 22px; color: #fff;
  border: 1px solid rgba(255,255,255,.1);
}
.about-card-float .fl-title { font-size: 15px; font-weight: 700; color: var(--accent-light); }
.about-card-float .fl-text { font-size: 13px; color: rgba(255,255,255,.65); margin-top: 4px; }

/* ============ 分类入口 ============ */
.categories-section { background: var(--bg-white); }
.category-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all .4s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(201,163,92,.4); }
.category-cover { position: relative; height: 200px; overflow: hidden; }
.category-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.category-card:hover .category-cover img { transform: scale(1.06); }
.category-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,17,32,.45), transparent 60%); }
.category-body { padding: 26px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.category-body h3 { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.category-body p { font-size: 14px; color: var(--text-weak); flex: 1; }
.category-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent-dark); font-size: 14px; font-weight: 700;
  margin-top: 18px; transition: gap .3s;
}
.category-link:hover { gap: 14px; color: var(--primary); }

/* ============ 功能特色 ============ */
.features-section {
  background: var(--bg-dark);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.features-section .section-title { color: #fff; }
.features-section .section-sub { color: rgba(255,255,255,.7); }
.feature-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all .35s ease;
  height: 100%;
  backdrop-filter: blur(4px);
}
.feature-card:hover { background: rgba(255,255,255,.09); border-color: rgba(201,163,92,.35); transform: translateY(-6px); }
.feature-ico {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--primary-dark);
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(201,163,92,.3);
}
.feature-card h4 { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.7; }

/* ============ 资讯列表 ============ */
.news-section { background: var(--bg-light); }
.news-wrap { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: start; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all .35s ease;
}
.news-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(201,163,92,.3); }
.news-link { display: flex; gap: 20px; padding: 18px; }
.news-thumb { flex-shrink: 0; width: 150px; height: 110px; border-radius: var(--radius-sm); overflow: hidden; background: #eee; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { flex: 1; min-width: 0; }
.news-cat { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-dark); background: rgba(201,163,92,.14); padding: 3px 12px; border-radius: 999px; margin-bottom: 8px; }
.news-body h3 { font-size: 17px; font-weight: 700; color: var(--primary); line-height: 1.45; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body p { font-size: 14px; color: var(--text-weak); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body time { display: inline-block; margin-top: 8px; font-size: 13px; color: #9aa3ad; }
.news-body time i { margin-right: 5px; }
.empty-tip { text-align: center; padding: 60px 20px; background: #fff; border-radius: var(--radius); border: 1px dashed var(--border); color: var(--text-weak); font-size: 15px; }
.news-side { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 150px; }
.side-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.side-card h4 { font-size: 18px; font-weight: 800; color: var(--primary); margin-bottom: 16px; position: relative; padding-bottom: 12px; }
.side-card h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px; border-radius: 2px; background: var(--accent); }
.tags-wrap { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item { display: inline-block; padding: 6px 16px; background: var(--bg-light); border: 1px solid var(--border); border-radius: 999px; font-size: 13px; color: var(--text-weak); transition: all .3s; }
.tag-item:hover { background: var(--accent); border-color: var(--accent); color: var(--primary-dark); }
.side-help { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border: none; padding: 28px; }
.side-help h4 { color: #fff; }
.side-help h4::after { background: var(--accent); }
.side-help p { font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 20px; }

/* ============ 流程步骤 ============ */
.steps-section { background: var(--bg-white); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: step; }
.step-card {
  text-align: center; padding: 36px 30px; border-radius: var(--radius-lg);
  background: var(--bg-light); border: 1px solid var(--border); position: relative;
  transition: all .35s ease;
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); background: #fff; }
.step-num {
  width: 64px; height: 64px; margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 900;
  position: relative; z-index: 1;
}
.step-num::before {
  content: ""; position: absolute; inset: -6px; border-radius: 50%;
  border: 2px dashed rgba(201,163,92,.4); animation: spin 22s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.step-card h3 { font-size: 19px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }

/* ============ FAQ ============ */
.faq-section {
  background: var(--bg-dark);
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
}
.faq-section .section-title { color: #fff; }
.faq-section .section-sub { color: rgba(255,255,255,.7); }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
}
.faq-item[open] { background: rgba(255,255,255,.09); border-color: rgba(201,163,92,.3); }
.faq-item summary {
  cursor: pointer;
  padding: 22px 28px;
  font-size: 16px; font-weight: 700;
  color: #fff;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; list-style: 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(--accent); transition: transform .3s; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 28px 24px; font-size: 14px; color: rgba(255,255,255,.7); line-height: 1.75; }

/* ============ CTA ============ */
.cta-section {
  position: relative;
  background:
    linear-gradient(135deg, rgba(8,17,32,.92), rgba(12,25,41,.78)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 90px 0;
  text-align: center;
  color: #fff;
}
.cta-section h2 { font-size: 42px; font-weight: 900; line-height: 1.25; margin-bottom: 16px; }
.cta-section h2 span { color: var(--accent); }
.cta-section p { font-size: 17px; color: rgba(255,255,255,.7); max-width: 560px; margin: 0 auto 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-badge { display: inline-block; margin-top: 24px; padding: 8px 20px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15); border-radius: 999px; font-size: 13px; color: rgba(255,255,255,.6); }

/* ============ 页脚 ============ */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,.6); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 28px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-title { font-size: 16px; font-weight: 800; color: #fff; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--accent); border-radius: 2px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; transition: all .3s; display: inline-flex; align-items: center; gap: 8px; }
.footer-links a i { font-size: 12px; color: var(--accent); opacity: .6; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li { display: flex; align-items: center; gap: 12px; font-size: 14px; margin-bottom: 14px; }
.footer-contact i { width: 30px; height: 30px; border-radius: 8px; background: rgba(255,255,255,.08); display: inline-flex; align-items: center; justify-content: center; color: var(--accent); font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; font-size: 13px; }
.footer-bottom a { color: var(--accent); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .section { --space-section: 80px; }
  .hero-title { font-size: 46px; }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .news-wrap { grid-template-columns: 1fr; }
  .news-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .news-side .side-card { flex: 1; min-width: 260px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item::after { display: none; }
}

@media (max-width: 768px) {
  .header-search { display: none; }
  .brand-text { font-size: 19px; }
  .brand-text small { display: none; }
  .brand-icon { width: 38px; height: 38px; font-size: 17px; }
  .header-cta .btn { padding: 9px 16px; font-size: 13px; }
  .channel-tab { padding: 14px 16px; font-size: 14px; }
  .hero-section { min-height: 540px; padding: 90px 0 70px; }
  .hero-title { font-size: 36px; }
  .hero-sub { font-size: 16px; }
  .section-title { font-size: 30px; }
  .section-head { margin-bottom: 40px; }
  .features-section { background-attachment: scroll; }
  .categories-section .grid-x > .cell { margin-bottom: 20px; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-section h2 { font-size: 32px; }
  .news-link { flex-direction: column; }
  .news-thumb { width: 100%; height: 170px; }
}

@media (max-width: 520px) {
  .grid-container { padding: 0 16px; }
  .section { --space-section: 56px; }
  .header-top-inner { min-height: 60px; }
  .brand-text { font-size: 17px; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; border-radius: 10px; }
  .header-cta { display: none; }
  .hero-title { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-num { font-size: 28px; }
  .section-title { font-size: 26px; }
  .about-grid { gap: 32px; }
  .about-text h2 { font-size: 26px; }
  .category-card { margin-bottom: 16px; }
  .btn-play { width: 50px; height: 50px; font-size: 16px; }
  .faq-item summary { font-size: 15px; padding: 18px 20px; }
  .faq-item .faq-body { padding: 0 20px 18px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ============ 动效 ============ */
.animate-fade-up { opacity: 0; transform: translateY(24px); animation: fadeUp .8s ease forwards; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
    --primary:#d4a017;
    --primary-dark:#b8860b;
    --primary-light:#f5d97a;
    --secondary:#861f1f;
    --secondary-dark:#5c1414;
    --accent:#f0c75e;
    --bg:#f7f5f0;
    --bg-alt:#1a1a2e;
    --bg-deep:#10101f;
    --text:#232323;
    --text-light:#f5f0e8;
    --muted:#6e6e6e;
    --border:#e5e0d5;
    --border-dark:#333352;
    --radius:16px;
    --radius-sm:10px;
    --shadow:0 20px 50px rgba(0,0,0,.08);
    --shadow-hover:0 30px 60px rgba(0,0,0,.14);
    --transition:all .3s cubic-bezier(.25,.8,.25,1);
    --container-w:72rem;
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",sans-serif;
    line-height:1.75;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;transition:var(--transition);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
.container{max-width:var(--container-w);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:80px 0;}
.section-alt{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);}
.section-dark{background:var(--bg-alt);color:var(--text-light);}
.section-deep{background:var(--bg-deep);color:var(--text-light);}
.muted{color:var(--muted);}

/* ===== 按钮 ===== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 28px;border-radius:50px;font-weight:600;font-size:15px;
    border:2px solid transparent;cursor:pointer;transition:var(--transition);
    line-height:1.4;white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--primary);color:#1c1c1c;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 25px rgba(180,134,11,.35);}
.btn-outline{border-color:rgba(255,255,255,.6);color:#fff;background:transparent;}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(240,199,94,.1);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--secondary-dark);border-color:#fff;}
.btn-light:hover{background:var(--primary);color:#1c1c1c;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 10px 25px rgba(0,0,0,.2);}
.btn-lg{padding:16px 40px;font-size:17px;}

/* ===== Section Title ===== */
.section-head{margin-bottom:48px;text-align:center;}
.section-tag{
    display:inline-flex;align-items:center;gap:8px;
    background:rgba(212,160,23,.12);color:var(--primary-dark);
    padding:6px 18px;border-radius:50px;font-size:13px;font-weight:600;
    letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px;
}
.section-title{font-size:36px;font-weight:800;line-height:1.3;letter-spacing:-.02em;color:var(--text);}
.section-alt .section-title{color:var(--text);}
.section-dark .section-title{color:#fff;}
.section-deep .section-title{color:#fff;}
.section-lead{font-size:16px;color:var(--muted);max-width:640px;margin:16px auto 0;}
.section-dark .section-lead{color:rgba(255,255,255,.65);}
.section-deep .section-lead{color:rgba(255,255,255,.6);}

/* ===== Header 顶部信息条 ===== */
.site-header{
    background:linear-gradient(180deg, rgba(16,16,31,.98) 0%, rgba(22,22,40,.98) 100%);
    backdrop-filter:blur(18px);
    position:sticky;top:0;z-index:1000;
    box-shadow:0 4px 30px rgba(0,0,0,.25);
}
.header-top{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.07);}
.header-top-inner{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;transition:var(--transition);}
.brand-logo:hover{opacity:.9;}
.brand-icon{
    width:40px;height:40px;border-radius:12px;
    background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
    display:flex;align-items:center;justify-content:center;font-size:18px;color:#1c1c1c;
    box-shadow:0 4px 15px rgba(212,160,23,.4);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:.02em;line-height:1.3;}
.brand-text small{display:block;font-size:11px;font-weight:400;color:rgba(255,255,255,.6);letter-spacing:.12em;margin-top:1px;}
.header-search{flex:1;max-width:340px;}
.search-form{display:flex;align-items:center;background:rgba(255,255,255,.08);border-radius:50px;padding:4px 4px 4px 16px;border:1px solid rgba(255,255,255,.1);transition:var(--transition);}
.search-form:focus-within{background:rgba(255,255,255,.14);border-color:rgba(212,160,23,.6);box-shadow:0 0 0 3px rgba(212,160,23,.15);}
.search-form input{flex:1;background:transparent;border:none;color:#fff;font-size:14px;outline:none;padding:6px 0;}
.search-form input::placeholder{color:rgba(255,255,255,.4);}
.search-form button{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));border:none;color:#1c1c1c;font-size:14px;cursor:pointer;transition:var(--transition);flex-shrink:0;}
.search-form button:hover{transform:scale(1.05);box-shadow:0 4px 12px rgba(212,160,23,.4);}
.header-cta{display:flex;align-items:center;}

/* ===== 频道导航 Tabs ===== */
.channel-nav{border-top:1px solid rgba(255,255,255,.05);background:rgba(0,0,0,.2);}
.channel-tabs{display:flex;align-items:center;gap:6px;overflow-x:auto;padding:8px 0;scrollbar-width:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
    display:inline-flex;align-items:center;
    padding:9px 20px;border-radius:50px;color:rgba(255,255,255,.65);
    font-size:14px;font-weight:500;white-space:nowrap;
    border:1px solid transparent;transition:var(--transition);flex-shrink:0;
}
.channel-tab i{transition:var(--transition);}
.channel-tab:hover{color:#fff;background:rgba(255,255,255,.08);}
.channel-tab.active{
    background:rgba(212,160,23,.15);color:var(--primary);
    border-color:rgba(212,160,23,.35);font-weight:700;
}
.channel-tab.active i{color:var(--primary);}

/* ===== 分类页 Hero ===== */
.category-hero{
    position:relative;padding:110px 0 100px;overflow:hidden;
    background:linear-gradient(135deg, rgba(16,16,31,.92) 0%, rgba(26,26,46,.85) 50%, rgba(134,31,31,.75) 100%);
}
.category-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;z-index:0;}
.category-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,16,31,.6) 0%,rgba(16,16,31,.85) 100%);}
.category-hero-inner{position:relative;z-index:2;}
.category-hero-breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;}
.category-hero-breadcrumb a{color:rgba(255,255,255,.8);}
.category-hero-breadcrumb a:hover{color:var(--primary);}
.category-hero-breadcrumb span{color:var(--primary);}
.category-hero h1{font-size:48px;font-weight:900;line-height:1.2;color:#fff;letter-spacing:-.02em;margin-bottom:16px;}
.category-hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.category-hero p.lead{font-size:17px;color:rgba(255,255,255,.75);max-width:560px;margin-bottom:28px;line-height:1.8;}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:50px;padding:6px 16px;font-size:13px;color:rgba(255,255,255,.75);}
.hero-badge i{color:var(--primary);}

/* ===== 使用流程步骤 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step-card{
    background:#fff;border-radius:var(--radius);padding:32px 24px;text-align:center;
    border:1px solid var(--border);position:relative;
    transition:var(--transition);
}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(212,160,23,.4);}
.step-number{
    width:48px;height:48px;margin:0 auto 16px;border-radius:14px;
    background:linear-gradient(135deg,var(--primary),var(--accent));
    color:#1c1c1c;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;
    box-shadow:0 8px 20px rgba(212,160,23,.3);
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);line-height:1.65;}
.step-arrow{position:absolute;right:-18px;top:50%;transform:translateY(-50%);color:var(--primary);font-size:14px;z-index:2;opacity:.5;}
@media(max-width:900px){.steps-grid{grid-template-columns:repeat(2,1fr);gap:18px;}.step-arrow{display:none;}}
@media(max-width:520px){.steps-grid{grid-template-columns:1fr;}}

/* ===== 核心功能卡片 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.feature-card{
    background:#fff;border-radius:var(--radius);overflow:hidden;
    border:1px solid var(--border);transition:var(--transition);
    display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(212,160,23,.35);}
.feature-media{height:200px;overflow:hidden;position:relative;}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-card:hover .feature-media img{transform:scale(1.05);}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(0,0,0,.35));}
.feature-media-tag{
    position:absolute;top:14px;left:14px;z-index:2;
    background:rgba(16,16,31,.75);backdrop-filter:blur(8px);
    color:var(--primary);font-size:12px;font-weight:600;
    padding:5px 14px;border-radius:50px;border:1px solid rgba(212,160,23,.3);
}
.feature-body{padding:26px 24px;display:flex;flex-direction:column;flex:1;}
.feature-body h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.feature-body p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:16px;flex:1;}
.feature-link{font-size:14px;font-weight:600;color:var(--secondary-dark);display:inline-flex;align-items:center;gap:6px;}
.feature-link i{transition:transform .3s;}
.feature-link:hover{color:var(--primary-dark);}
.feature-link:hover i{transform:translateX(4px);}
@media(max-width:900px){.feature-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media(max-width:560px){.feature-grid{grid-template-columns:1fr;}}

/* ===== 荣誉信息条 ===== */
.info-strip{
    background:linear-gradient(90deg, rgba(212,160,23,.25) 0%, rgba(134,31,31,.15) 100%);
    border:1px solid rgba(212,160,23,.25);border-radius:var(--radius);
    padding:20px 30px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
}
.info-strip i.fa-award{font-size:32px;color:var(--primary);flex-shrink:0;}
.info-strip strong{font-size:18px;font-weight:800;}
.info-strip p{font-size:14px;color:rgba(255,255,255,.8);}

/* ===== 场景列表深色区 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.scene-item{
    display:flex;gap:18px;padding:28px;background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);
    transition:var(--transition);
}
.scene-item:hover{background:rgba(255,255,255,.08);border-color:rgba(212,160,23,.3);transform:translateX(4px);}
.scene-icon{
    width:52px;height:52px;flex-shrink:0;border-radius:14px;
    background:linear-gradient(135deg,rgba(212,160,23,.2),rgba(240,199,94,.1));
    border:1px solid rgba(212,160,23,.3);
    display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary);
}
.scene-text h3{font-size:17px;font-weight:700;margin-bottom:6px;color:#fff;}
.scene-text p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7;}
@media(max-width:900px){.scene-grid{grid-template-columns:1fr;gap:18px;}}

/* ===== 平台须知列表 ===== */
.notice-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.notice-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius);
    padding:26px 24px;transition:var(--transition);position:relative;overflow:hidden;
}
.notice-card::before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--primary),var(--accent));opacity:0;transition:var(--transition);}
.notice-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);}
.notice-card:hover::before{opacity:1;}
.notice-card .notice-icon{width:44px;height:44px;border-radius:12px;background:rgba(212,160,23,.12);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--primary-dark);margin-bottom:14px;}
.notice-card h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.notice-card p{font-size:14px;color:var(--muted);line-height:1.7;}
@media(max-width:900px){.notice-list{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.notice-list{grid-template-columns:1fr;}}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
    background:#fff;border:1px solid var(--border);border-radius:14px;
    margin-bottom:14px;overflow:hidden;transition:var(--transition);
}
.faq-item:hover{border-color:rgba(212,160,23,.4);box-shadow:0 8px 24px rgba(0,0,0,.05);}
.faq-item summary{
    cursor:pointer;padding:22px 28px;font-size:16px;font-weight:600;
    list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
    transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
    content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
    font-size:14px;color:var(--primary);transition:var(--transition);flex-shrink:0;
}
.faq-item[open] summary::after{content:"\f068";}
.faq-item[open] summary{color:#1c1c1c;}
.faq-body{padding:0 28px 24px;font-size:15px;color:var(--muted);line-height:1.8;border-top:1px dashed var(--border);margin:0 28px 0;padding:16px 0 22px;margin-top:0;}

/* ===== CTA ===== */
.cta-section{position:relative;padding:90px 0;overflow:hidden;background:var(--bg-deep);}
.cta-section .cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;z-index:0;}
.cta-section .cta-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(16,16,31,.8),rgba(134,31,31,.6));}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:680px;margin:0 auto;}
.cta-inner h2{font-size:40px;font-weight:900;color:#fff;margin-bottom:16px;line-height:1.2;}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.75);margin-bottom:32px;line-height:1.8;}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.65);padding-top:70px;border-top:4px solid var(--primary);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:44px;padding-bottom:44px;}
.footer-brand .brand-logo{margin-bottom:14px;}
.footer-brand .brand-text{font-size:18px;}
.footer-brand .brand-text small{display:none;}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:12px;color:rgba(255,255,255,.5);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;position:relative;padding-bottom:10px;}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--primary);border-radius:2px;}
.footer-links li{margin-bottom:10px;}
.footer-links a, .footer-contact li{font-size:14px;display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.55);transition:var(--transition);}
.footer-links a:hover{color:var(--primary);padding-left:4px;}
.footer-contact li i{color:var(--primary);width:16px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.35);}
.footer-bottom span{display:inline-flex;align-items:center;gap:6px;}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;gap:26px;}.footer-bottom{flex-direction:column;text-align:center;}}
.footer-brand .brand-icon{width:36px;height:36px;font-size:16px;}

/* ===== 响应式 ===== */
@media(max-width:1024px){
    .section{padding:65px 0;}
    .category-hero{padding:90px 0 80px;}
    .category-hero h1{font-size:40px;}
    .brand-text{font-size:18px;}
    .brand-text small{font-size:10px;}
    .section-title{font-size:32px;}
}
@media(max-width:768px){
    .header-top-inner{flex-wrap:wrap;}
    .header-search{order:3;flex:0 0 100%;max-width:100%;margin-top:6px;}
    .header-cta{margin-left:auto;}
    .category-hero{padding:70px 0 60px;}
    .category-hero h1{font-size:34px;}
    .hero-meta{flex-direction:column;align-items:flex-start;}
    .info-strip{padding:18px;}
    .cta-inner h2{font-size:30px;}
    .section-title{font-size:28px;}
}
@media(max-width:520px){
    .section{padding:50px 0;}
    .category-hero{padding:56px 0 48px;}
    .category-hero h1{font-size:28px;}
    .category-hero p.lead{font-size:15px;}
    .btn-lg{padding:14px 30px;font-size:15px;}
    .section-title{font-size:24px;}
    .brand-text{font-size:16px;}
    .brand-icon{width:34px;height:34px;font-size:15px;}
    .hero-buttons .btn{width:100%;justify-content:center;}
    .cta-buttons .btn{width:100%;justify-content:center;}
}

@media(prefers-reduced-motion:reduce){
    *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* roulang page: category2 */
:root {
  --primary: #c9a86a;
  --primary-dark: #a98741;
  --primary-light: #f0e3c8;
  --secondary: #1a1f2e;
  --secondary-light: #2a3042;
  --bg: #f7f5f2;
  --bg-dark: #12141c;
  --text: #1e232e;
  --text-muted: #6b7380;
  --border: #e6e1d9;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 4px 24px rgba(0,0,0,.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,.1);
  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --font: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1280px;margin:0 auto;padding:0 32px}
.grid-container{padding-left:20px;padding-right:20px;max-width:1280px}
.section{padding:100px 0;position:relative}
.section-dark{background:var(--bg-dark);color:#f0e3c8}
.section-light{background:var(--background-light,#fff)}
.section-head{text-align:center;max-width:720px;margin:0 auto 64px}
.section-eyebrow{display:inline-block;padding:5px 18px;border-radius:999px;background:rgba(201,168,106,.14);color:var(--primary-dark);font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:16px;text-transform:uppercase}
.section-head h2{font-size:42px;line-height:1.2;font-weight:700;color:var(--text);letter-spacing:-.5px}
.section-head p{font-size:16px;color:var(--text-muted);margin-top:16px}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(240,227,200,.72)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:10px;font-weight:600;font-size:15px;line-height:1;border:none;cursor:pointer;transition:var(--transition);gap:8px;letter-spacing:.3px}
.btn-primary{background:var(--primary);color:#1a1a1a}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,168,106,.35)}
.btn-outline{border:2px solid rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--primary);color:#fff;background:rgba(255,255,255,.08)}
.btn-lg{padding:17px 40px;font-size:16px;border-radius:12px}
.btn-light{background:#fff;color:var(--secondary)}
.btn-light:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,225,217,.8);box-shadow:0 2px 20px rgba(0,0,0,.04)}
.header-top{padding:16px 0;background:linear-gradient(135deg,var(--secondary) 0%,#151824 100%)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand-logo{display:inline-flex;align-items:center;gap:12px;color:#fff}
.brand-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#8e6b2c);display:flex;align-items:center;justify-content:center;font-size:18px;color:#1a1a1a;box-shadow:0 4px 16px rgba(201,168,106,.3);flex-shrink:0}
.brand-text{font-size:20px;font-weight:700;letter-spacing:1px;line-height:1.2;display:flex;flex-direction:column}
.brand-text small{font-size:11px;font-weight:400;color:rgba(255,255,255,.5);letter-spacing:1.5px;text-transform:uppercase}
.header-search .search-form{display:flex;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:50px;padding:4px}
.header-search .search-form input{background:transparent;border:none;padding:8px 16px;color:#fff;font-size:14px;width:260px}
.header-search .search-form input::placeholder{color:rgba(255,255,255,.4)}
.header-search .search-form button{background:var(--primary);border:none;width:36px;height:36px;border-radius:50%;color:#1a1a1a;cursor:pointer;transition:var(--transition)}
.header-search .search-form button:hover{background:var(--primary-dark);color:#fff}
.header-cta .btn-pill{padding:9px 22px;border-radius:50px}
.channel-nav{background:#fff;border-bottom:1px solid var(--border);padding:0}
.channel-tabs{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;padding:10px 0}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{display:inline-flex;align-items:center;padding:10px 18px;border-radius:50px;font-size:14px;font-weight:600;color:var(--text-muted);white-space:nowrap;transition:var(--transition);border:1px solid transparent}
.channel-tab:hover{color:var(--primary-dark);background:var(--primary-light)}
.channel-tab.active{background:var(--secondary);color:#fff;box-shadow:0 4px 12px rgba(26,31,46,.3)}
.channel-tab i{margin-right:6px;font-size:13px;opacity:.8}

/* Hero Breadcrumb */
.page-banner{position:relative;padding:120px 0 100px;background:var(--secondary);overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(18,20,28,.95) 0%,rgba(18,20,28,.65) 100%),url('/assets/images/backpic/back-1.png') center/cover;z-index:0}
.page-banner::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:120px;background:linear-gradient(to bottom,transparent,var(--bg))}
.page-banner .container{position:relative;z-index:2}
.page-banner-text{max-width:640px}
.page-banner-text .breadcrumb{display:flex;align-items:center;gap:10px;color:rgba(240,227,200,.6);font-size:13px;font-weight:500;letter-spacing:1px;margin-bottom:20px}
.page-banner-text .breadcrumb a:hover{color:var(--primary)}
.page-banner-text h1{font-size:52px;font-weight:800;color:#fff;line-height:1.2;letter-spacing:-1px;margin-bottom:20px}
.page-banner-text h1 span{background:linear-gradient(135deg,var(--primary),#e8c66e);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.page-banner-text p{font-size:17px;color:rgba(255,255,255,.75);line-height:1.8}
.page-banner-stats{position:absolute;right:5%;bottom:60px;z-index:2;display:flex;gap:60px;padding:28px 36px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;backdrop-filter:blur(10px)}
.page-banner-stat{text-align:center}
.page-banner-stat .num{font-size:34px;font-weight:800;color:var(--primary)}
.page-banner-stat .label{font-size:13px;color:rgba(255,255,255,.55);margin-top:2px}

/* Badges & Tags */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600}
.badge-gold{background:var(--primary-light);color:var(--primary-dark)}
.badge-dark{background:rgba(26,31,46,.08);color:var(--secondary)}
.badge-green{background:#e9f7e9;color:#2e7d32}
.badge-blue{background:#e8f0fe;color:#1a73e8}

/* Login Method Cards */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:20px}
.method-card{background:#fff;border-radius:var(--radius-lg);padding:40px 32px;text-align:center;border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden}
.method-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),transparent)}
.method-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:rgba(201,168,106,.4)}
.method-icon{width:72px;height:72px;border-radius:18px;background:linear-gradient(135deg,var(--primary-light),#fff);display:flex;align-items:center;justify-content:center;margin:0 auto 22px;font-size:28px;color:var(--primary-dark);transition:var(--transition)}
.method-card:hover .method-icon{background:var(--primary-light);transform:scale(1.05)}
.method-card h3{font-size:20px;font-weight:700;margin-bottom:10px;color:var(--text)}
.method-card p{font-size:14px;color:var(--text-muted);line-height:1.7}
.method-card .method-meta{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px}
.method-card .method-tag{padding:3px 12px;border-radius:999px;background:rgba(26,31,46,.06);font-size:12px;color:var(--text-muted)}

/* Steps */
.steps-wrap{position:relative;margin-top:60px}
.steps-wrap::before{content:"";position:absolute;top:40px;bottom:40px;left:50%;width:2px;background:linear-gradient(to bottom,var(--primary),transparent);transform:translateX(-50%)}
.step-row{display:flex;gap:40px;margin-bottom:48px;position:relative;align-items:center}
.step-row:nth-child(odd){flex-direction:row-reverse}
.step-num{width:80px;height:80px;border-radius:50%;background:var(--secondary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;box-shadow:0 8px 28px rgba(26,31,46,.3);position:relative;z-index:2;flex-shrink:0}
.step-content{flex:1;background:#fff;border:1px solid var(--border);border-radius:16px;padding:32px 36px;box-shadow:var(--shadow)}
.step-content h4{font-size:19px;font-weight:700;margin-bottom:10px}
.step-content p{font-size:14px;color:var(--text-muted)}
.step-content .step-tag{display:inline-block;margin-top:14px;font-size:12px;color:var(--primary-dark);font-weight:600;background:var(--primary-light);border-radius:6px;padding:4px 12px}

/* Security Section */
.security-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.security-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:32px 24px;text-align:center;transition:var(--transition)}
.security-card:hover{background:rgba(255,255,255,.1);border-color:rgba(201,168,106,.3)}
.security-card i{font-size:32px;color:var(--primary);margin-bottom:16px;display:inline-block}
.security-card h4{font-size:17px;color:#fff;margin-bottom:8px;font-weight:700}
.security-card p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.6}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item details{list-style:none}
.faq-item summary{cursor:pointer;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;font-weight:600;color:var(--text)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{width:28px;height:28px;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:13px;transition:var(--transition);flex-shrink:0}
.faq-item[open]{box-shadow:var(--shadow)}
.faq-item[open] summary .faq-icon{transform:rotate(45deg);background:var(--secondary);color:#fff}
.faq-answer{padding:0 28px 24px;color:var(--text-muted);font-size:14px;line-height:1.8;border-top:1px dashed var(--border);padding-top:0}
.faq-answer p{margin:14px 0 0}

/* CTA */
.cta-section{position:relative;overflow:hidden;background:var(--secondary)}
.cta-section::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(18,20,28,.94),rgba(18,20,28,.8)),url('/assets/images/backpic/back-2.png') center/cover}
.cta-section::after{content:"";position:absolute;bottom:-80px;left:10%;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,106,.3),transparent 70%)}
.cta-inner{position:relative;z-index:2;text-align:center;padding:100px 20px}
.cta-inner h2{font-size:44px;font-weight:800;color:#fff;margin-bottom:20px;letter-spacing:-1px}
.cta-inner h2 span{color:var(--primary)}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.7);max-width:600px;margin:0 auto 40px;line-height:1.8}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--secondary);color:rgba(255,255,255,.6);padding:70px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:50px;padding-bottom:50px}
.footer-brand .brand-logo{color:#fff}
.footer-brand .brand-logo .brand-text small{color:rgba(255,255,255,.4)}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:18px;color:rgba(255,255,255,.55)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px;letter-spacing:.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.55);transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.footer-links a i{font-size:10px;transition:var(--transition)}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:12px;margin-bottom:10px}
.footer-contact i{color:var(--primary);width:18px;text-align:center;font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:rgba(255,255,255,.3)}

/* Responsive */
@media screen and (max-width:1024px){
  .page-banner{padding:100px 0 80px}
  .page-banner-text h1{font-size:42px}
  .page-banner-stats{position:relative;right:auto;bottom:auto;margin-top:30px;display:flex;gap:30px;padding:20px 24px;justify-content:flex-start}
  .method-grid{grid-template-columns:repeat(2,1fr)}
  .security-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media screen and (max-width:768px){
  .section{padding:60px 0}
  .section-head h2{font-size:30px}
  .header-top-inner{flex-direction:column;gap:12px}
  .header-search .search-form input{width:180px}
  .header-cta{display:none}
  .page-banner-text h1{font-size:34px}
  .page-banner-stats{flex-wrap:wrap;gap:20px}
  .page-banner-stat .num{font-size:24px}
  .steps-wrap::before{display:none}
  .step-row,.step-row:nth-child(odd){flex-direction:column;gap:20px}
  .step-num{width:56px;height:56px;font-size:20px}
  .method-grid{grid-template-columns:1fr}
  .security-grid{grid-template-columns:1fr 1fr;gap:16px}
  .security-card{padding:24px 16px}
  .cta-inner h2{font-size:30px}
  .footer-grid{grid-template-columns:1fr;gap:35px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .grid-container{padding-left:16px;padding-right:16px}
  .header-search{width:100%}
  .header-search .search-form input{width:100%;flex:1}
  .page-banner{padding:70px 0 60px}
  .page-banner-text h1{font-size:28px}
  .page-banner-text p{font-size:15px}
  .page-banner-stats{flex-direction:column;gap:10px}
  .security-grid{grid-template-columns:1fr}
  .btn-lg{width:100%}
  .cta-buttons{flex-direction:column}
  .cta-buttons .btn{width:100%}
  .brand-text{font-size:16px}
}

/* roulang page: article */
:root {
  --primary: #0b1e3f;
  --primary-dark: #071529;
  --primary-light: #142d54;
  --gold: #c9a45a;
  --gold-light: #eadbb5;
  --bg: #f5f7fb;
  --bg-soft: #eef1f7;
  --text: #1c2b3a;
  --text-light: #5a6f84;
  --border: #e3eaf2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 44px rgba(11,30,63,.12);
  --shadow-sm: 0 8px 24px rgba(11,30,63,.08);
  --space: 88px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
button { margin: 0; }
input { font-family: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-primary { background: var(--gold); color: var(--primary-dark); }
.btn-primary:hover {
  background: #d4b36c;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(201,164,90,.35);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--gold);
  color: var(--gold);
}
.btn-outline:hover {
  background: var(--gold);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
}
.btn-light:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255,255,255,.2); }

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 4px 22px rgba(7,21,41,.07);
}
.header-top {
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.header-top-inner { min-height: 72px; gap: 20px; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: opacity .2s;
}
.brand-logo:hover { opacity: .88; }
.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--gold), #a8813a);
  color: #fff;
  font-size: 17px;
  box-shadow: 0 6px 18px rgba(201,164,90,.4);
  flex-shrink: 0;
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  line-height: 1.2;
}
.brand-text small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-light);
  letter-spacing: 1.5px;
  margin-top: 3px;
}
.search-form {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}
.search-form:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,164,90,.18);
}
.search-form input {
  width: 220px;
  border: none;
  background: transparent;
  padding: 10px 18px;
  font-size: 13px;
  color: var(--text);
  outline: none;
}
.search-form button {
  border: none;
  background: var(--primary);
  color: #fff;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .25s;
}
.search-form button:hover { background: var(--primary-light); }
.channel-nav { background: var(--primary-dark); }
.channel-tabs {
  display: flex;
  gap: 10px;
  padding: 14px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.channel-tabs::-webkit-scrollbar { display: none; }
.channel-tab {
  display: inline-flex;
  align-items: center;
  padding: 9px 22px;
  border-radius: 999px;
  color: rgba(255,255,255,.72);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: all .25s ease;
  text-decoration: none;
}
.channel-tab:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}
.channel-tab.active {
  background: var(--gold);
  color: var(--primary-dark);
}
.channel-tab.active:hover { background: var(--gold); }

/* ========== 文章详情横幅 ========== */
.page-banner {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(7,18,36,.95) 10%, rgba(8,21,41,.78) 50%, rgba(8,21,41,.55) 100%);
}
.banner-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  color: #fff;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.breadcrumb a {
  color: var(--gold-light);
  transition: color .2s;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; color: rgba(255,255,255,.45); }
.breadcrumb .current { color: rgba(255,255,255,.85); max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.banner-content h1 {
  font-size: 38px;
  line-height: 1.35;
  margin: 20px 0 22px;
  color: #fff;
  font-weight: 800;
  letter-spacing: .5px;
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: rgba(255,255,255,.78);
  font-size: 14px;
}
.banner-meta span { display: inline-flex; align-items: center; gap: 6px; }
.banner-meta i { color: var(--gold); }

/* ========== 文章主体 ========== */
.article-main-section { padding: 76px 0; background: var(--bg); }
.article-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 52px 56px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(227,234,242,.6);
}
.article-body {
  font-size: 16px;
  line-height: 2;
  color: var(--text);
  overflow-wrap: break-word;
}
.article-body h2,
.article-body h3 {
  color: var(--primary);
  margin-top: 32px;
  margin-bottom: 14px;
  line-height: 1.45;
}
.article-body h2 { font-size: 22px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.article-body h3 { font-size: 18px; }
.article-body p { margin-bottom: 18px; }
.article-body a { color: #b1842c; border-bottom: 1px solid rgba(201,164,90,.4); }
.article-body a:hover { color: var(--primary); border-color: var(--primary); }
.article-body ul,
.article-body ol { margin: 16px 0 20px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body img { border-radius: 14px; margin: 24px 0; box-shadow: var(--shadow-sm); }
.article-body blockquote {
  margin: 22px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--gold);
  background: var(--bg);
  border-radius: 0 12px 12px 0;
  color: var(--text-light);
}
.not-found {
  text-align: center;
  padding: 70px 20px;
}
.not-found i {
  font-size: 46px;
  color: var(--gold);
  display: block;
  margin-bottom: 18px;
}
.not-found h2 {
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 10px;
}
.not-found p {
  color: var(--text-light);
  margin-bottom: 26px;
}

/* ========== 侧边栏 ========== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.widget {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(227,234,242,.5);
}
.widget-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.widget-title i { color: var(--gold); }
.widget-list li { margin-bottom: 12px; }
.widget-list li a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-light);
  font-size: 14px;
  transition: all .2s;
}
.widget-list li a i {
  color: var(--gold);
  font-size: 12px;
  margin-top: 5px;
}
.widget-list li a:hover { color: var(--primary); }
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  background: var(--bg);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  transition: all .25s;
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.widget-cta {
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
}
.widget-cta .widget-title { color: #fff; border-color: rgba(255,255,255,.15); }
.widget-cta .widget-title i { color: var(--gold); }
.widget-cta p {
  color: rgba(255,255,255,.75);
  font-size: 14px;
  margin-bottom: 22px;
}

/* ========== 推荐区块 ========== */
.recommend-section { padding: var(--space) 0; background: #fff; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-tag {
  display: inline-block;
  padding: 7px 20px;
  background: rgba(201,164,90,.14);
  color: #a8813a;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
}
.section-head h2 { font-size: 32px; color: var(--primary); margin: 16px 0 12px; font-weight: 800; }
.section-head p { color: var(--text-light); font-size: 16px; }
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.recommend-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid rgba(227,234,242,.5);
}
.recommend-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}
.recommend-card .card-img {
  position: relative;
  overflow: hidden;
  height: 200px;
}
.recommend-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.recommend-card:hover .card-img img { transform: scale(1.07); }
.card-img-overlay {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(7,18,36,.72);
  backdrop-filter: blur(8px);
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
}
.recommend-card .card-body { padding: 24px; }
.recommend-card .card-body h3 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.recommend-card .card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 18px; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
}
.card-link i { font-size: 12px; transition: transform .2s; }
.card-link:hover i { transform: translateX(4px); }

/* ========== 流程区块 ========== */
.steps-section { padding: var(--space) 0; background: var(--primary); color: #fff; }
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255,255,255,.65); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.step-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 34px;
  transition: background .3s, transform .3s;
}
.step-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.step-num {
  width: 46px;
  height: 46px;
  background: var(--gold);
  color: var(--primary-dark);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 18px;
}
.step-card h3 { color: #fff; font-size: 19px; margin-bottom: 10px; }
.step-card p { color: rgba(255,255,255,.72); font-size: 14px; line-height: 1.7; }

/* ========== FAQ ========== */
.faq-section { padding: var(--space) 0; background: var(--bg); }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1140px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(227,234,242,.5);
  transition: transform .25s, box-shadow .25s;
}
.faq-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.faq-item h3 {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.faq-item h3 i { color: var(--gold); font-size: 15px; margin-top: 3px; }
.faq-item p { color: var(--text-light); font-size: 14px; line-height: 1.8; margin-left: 27px; margin-bottom: 0; }

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7,18,36,.94) 0%, rgba(11,30,63,.86) 100%);
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 760px;
  margin: 0 auto;
}
.cta-content h2 { font-size: 34px; color: #fff; margin-bottom: 14px; font-weight: 800; }
.cta-content p { color: rgba(255,255,255,.78); font-size: 18px; margin-bottom: 30px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ========== 页脚 ========== */
.site-footer { background: #08121f; color: rgba(255,255,255,.7); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-text { color: #fff; }
.footer-brand .brand-logo { margin-bottom: 6px; }
.footer-brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,.55);
  max-width: 360px;
}
.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-links li { margin-bottom: 6px; }
.footer-links li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  color: rgba(255,255,255,.62);
  font-size: 14px;
  transition: color .2s, transform .2s;
}
.footer-links li a i { font-size: 11px; color: var(--gold); }
.footer-links li a:hover { color: var(--gold); transform: translateX(4px); }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: rgba(255,255,255,.62);
}
.footer-contact i { color: var(--gold); font-size: 14px; width: 16px; text-align: center; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom span { display: inline-flex; align-items: center; gap: 8px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .article-card { padding: 40px 34px; }
  .recommend-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .steps-grid { gap: 18px; }
  .footer-grid { gap: 30px; }
}
@media (max-width: 820px) {
  .header-search { display: none; }
  .search-form input { width: 160px; }
  .banner-content h1 { font-size: 30px; }
  .recommend-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .steps-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .article-main-section { padding: 48px 0; }
  .article-card { padding: 30px 22px; }
}
@media (max-width: 520px) {
  .header-top-inner { min-height: 62px; gap: 10px; }
  .header-cta .btn { display: none; }
  .brand-icon { width: 36px; height: 36px; font-size: 14px; border-radius: 11px; }
  .brand-text { font-size: 17px; }
  .brand-text small { font-size: 10px; }
  .channel-tab { padding: 7px 15px; font-size: 14px; }
  .page-banner { padding: 56px 0; }
  .banner-content h1 { font-size: 25px; }
  .banner-meta { gap: 12px; font-size: 13px; }
  .section-head h2 { font-size: 25px; }
  .section-head p { font-size: 15px; }
  .cta-content h2 { font-size: 25px; }
  .cta-content p { font-size: 15px; }
  .cta-buttons .btn { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .footer-bottom span { justify-content: center; }
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #0f1c2e;
            --primary-light: #1c3a5c;
            --primary-dark: #08121c;
            --accent: #d4a574;
            --accent-hover: #b8834b;
            --bg-light: #f4f7fb;
            --bg-white: #ffffff;
            --text-main: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 6px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 18px 44px rgba(15, 23, 42, 0.14);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --header-h: 58px;
        }

        /* ============ Reset / Base ============ */
        *,
        *::before,
        *::after { box-sizing: border-box; margin: 0; padding: 0; }

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; color: inherit; border: none; background: none; }
        button { cursor: pointer; }

        h1, h2, h3, h4, h5 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
        }

        .grid-container { max-width: 1280px; }
        .section { padding: 90px 0; position: relative; }
        .section-alt { background: var(--bg-white); }
        .section-dark { background: var(--primary-dark); color: #cbd5e1; }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .eyebrow {
            display: inline-block;
            background: rgba(212, 165, 116, 0.15);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: 6px 22px;
            border-radius: 30px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: clamp(28px, 4vw, 40px);
            margin-bottom: 16px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(212, 165, 116, 0.35);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 165, 116, 0.45);
            color: var(--primary-dark);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
            border-radius: 40px;
        }

        .btn-lg { padding: 16px 44px; font-size: 16px; }

        .btn:focus-visible,
        a:focus-visible,
        .channel-tab:focus-visible {
            outline: 3px solid rgba(212, 165, 116, 0.55);
            outline-offset: 3px;
        }

        /* ============ Header 双层导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 28, 46, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .header-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 10px 0;
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .brand-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 20px;
            box-shadow: 0 4px 14px rgba(212, 165, 116, 0.4);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }

        .brand-text small {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 400;
            letter-spacing: 1.5px;
            margin-top: 2px;
        }

        .header-search {
            flex: 1;
            max-width: 420px;
            margin-left: auto;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 40px;
            padding: 4px 4px 4px 18px;
            transition: var(--transition);
        }

        .search-form:focus-within {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 4px rgba(212, 165, 116, 0.15);
        }

        .search-form input[type="text"] {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
            padding: 8px 0;
            outline: none;
        }

        .search-form input::placeholder { color: rgba(255, 255, 255, 0.45); }

        .search-form button {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition);
        }

        .search-form button:hover { background: var(--accent-hover); }

        .header-cta .btn {
            padding: 9px 24px;
            font-size: 14px;
            border-radius: 40px;
        }

        /* 频道导航 */
        .channel-nav { background: rgba(15, 28, 46, 0.5); }

        .channel-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            padding: 6px 0;
        }

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

        .channel-tab {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 10px 26px;
            font-size: 14.5px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.72);
            border-radius: 40px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .channel-tab:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .channel-tab.active {
            color: #fff;
            background: rgba(212, 165, 116, 0.22);
            border-color: rgba(212, 165, 116, 0.35);
            box-shadow: 0 0 18px rgba(212, 165, 116, 0.15);
            font-weight: 600;
        }

        /* ============ Page Banner ============ */
        .page-banner {
            position: relative;
            padding: 130px 0 110px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            text-align: center;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 18, 28, 0.95) 0%, rgba(15, 28, 46, 0.82) 55%, rgba(212, 165, 116, 0.28) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
        }

        .page-banner .banner-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13.5px;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 22px;
            border-radius: 40px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(6px);
        }

        .page-banner .banner-breadcrumb i {
            font-size: 11px;
            color: var(--accent);
        }

        .page-banner h1 {
            font-size: clamp(34px, 5vw, 54px);
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 2px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .page-banner .banner-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.8;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        /* ============ 帮助中心概览 ============ */
        .overview-wrap {
            display: flex;
            gap: 60px;
            align-items: center;
        }

        .overview-content { flex: 1; }

        .overview-content h2 {
            font-size: 34px;
            margin-bottom: 18px;
            line-height: 1.35;
        }

        .overview-content h2 span {
            color: var(--accent);
        }

        .overview-content p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .overview-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-top: 28px;
        }

        .overview-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14.5px;
            font-weight: 500;
            transition: var(--transition);
        }

        .overview-feature:hover {
            border-color: var(--accent);
            background: #fffdf7;
            transform: translateX(4px);
        }

        .overview-feature i {
            color: var(--accent);
            font-size: 18px;
        }

        .overview-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            flex: 0 0 300px;
        }

        .stat-card {
            background: var(--primary);
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card:nth-child(2) {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .stat-card::after {
            content: "";
            position: absolute;
            width: 90px;
            height: 90px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            top: -30px;
            right: -30px;
        }

        .stat-card:hover { transform: translateY(-6px); }

        .stat-number {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 13px;
            opacity: 0.82;
            letter-spacing: 1px;
        }

        .stat-card:nth-child(2) .stat-number { color: var(--primary-dark); }

        /* ============ 帮助分类卡片 ============ */
        .help-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .help-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .help-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 165, 116, 0.4);
        }

        .help-card .card-image {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .help-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .help-card:hover .card-image img { transform: scale(1.08); }

        .help-card .card-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 28, 46, 0.6), transparent 65%);
        }

        .help-card .card-image .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(212, 165, 116, 0.95);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            letter-spacing: 1px;
            backdrop-filter: blur(4px);
        }

        .help-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .help-card .card-body h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .help-card .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .help-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .help-card .card-link i {
            font-size: 12px;
            transition: transform .3s ease;
        }

        .help-card .card-link:hover {
            color: var(--accent);
        }

        .help-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ============ FAQ 手风琴 ============ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .custom-accordion {
            background: transparent;
            border: none;
        }

        .custom-accordion .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:hover {
            border-color: rgba(212, 165, 116, 0.4);
            box-shadow: var(--shadow);
        }

        .custom-accordion .accordion-item.is-active {
            border-color: rgba(212, 165, 116, 0.5);
            box-shadow: var(--shadow);
        }

        .custom-accordion .accordion-title {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .custom-accordion .accordion-item.is-active .accordion-title {
            color: var(--primary);
            border-bottom-color: var(--border);
        }

        .custom-accordion .accordion-title:hover {
            background: rgba(212, 165, 116, 0.05);
        }

        .faq-icon-badge {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .custom-accordion .accordion-title::before {
            content: none;
        }

        .custom-accordion .accordion-title::after {
            content: "\f077";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--accent);
            margin-left: auto;
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:not(.is-active) .accordion-title::after {
            content: "\f078";
        }

        .custom-accordion .accordion-content {
            background: var(--bg-white);
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.9;
            padding: 20px 24px 24px;
        }

        /* ============ 服务流程 ============ */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .flow-grid::before {
            content: "";
            position: absolute;
            top: 56px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(to right, var(--accent), var(--accent));
            opacity: 0.25;
            z-index: 0;
        }

        .flow-step {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 10px;
        }

        .flow-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 20px;
            background: var(--bg-white);
            border-radius: 50%;
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .flow-step:hover .flow-icon {
            border-color: var(--accent);
            background: var(--primary);
            color: var(--accent);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .flow-step .step-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        .flow-step h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ============ 服务承诺（深色） ============ */
        .promise-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .promise-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }

        .promise-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(212, 165, 116, 0.4);
            transform: translateY(-6px);
        }

        .promise-card .promise-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 22px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(212, 165, 116, 0.25), rgba(212, 165, 116, 0.08));
            border: 1px solid rgba(212, 165, 116, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
        }

        .promise-card h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .promise-card p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ============ CTA / 联系 ============ */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 18, 28, 0.94), rgba(15, 28, 46, 0.78));
            z-index: 1;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: clamp(30px, 4vw, 44px);
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 17px;
            max-width: 600px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }

        .cta-contact-list {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            margin-bottom: 40px;
        }

        .cta-contact-item {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 12px 26px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.9);
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }

        .cta-contact-item:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        .cta-contact-item i {
            color: var(--accent);
            font-size: 17px;
        }

        .cta-inner .btn { margin-top: 6px; }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.62);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 50px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand-logo {
            margin-bottom: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-title {
            color: #fff;
            font-size: 17px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 36px;
            height: 2px;
            background: var(--accent);
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 11px;
            color: var(--accent);
            transition: transform .3s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-links a:hover i {
            transform: translateX(2px);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            margin-bottom: 14px;
        }

        .footer-contact i {
            color: var(--accent);
            font-size: 15px;
            width: 22px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom span:first-child {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ============ 响应式断点 ============ */
        @media screen and (max-width: 1024px) {
            .section { padding: 70px 0; }
            
            .help-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .promise-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 24px;
            }

            .flow-grid::before { display: none; }

            .overview-wrap {
                flex-direction: column;
                gap: 40px;
            }

            .overview-stats {
                flex: none;
                width: 100%;
                max-width: 480px;
            }
        }

        @media screen and (max-width: 768px) {
            .section { padding: 56px 0; }
            
            .header-top-inner {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex: 0 0 100%;
            }

            .header-cta {
                margin-left: auto;
            }

            .brand-text {
                font-size: 17px;
            }

            .brand-text small {
                font-size: 10px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 36px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .page-banner {
                padding: 90px 0 70px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .page-banner .banner-sub {
                font-size: 15px;
            }

            .overview-features {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 70px 0;
            }

            .cta-contact-list {
                flex-direction: column;
                align-items: center;
            }
        }

        @media screen and (max-width: 520px) {
            html { font-size: 15px; }

            .channel-tab {
                padding: 8px 18px;
                font-size: 13px;
            }

            .help-cards-grid {
                grid-template-columns: 1fr;
            }

            .promise-grid {
                grid-template-columns: 1fr;
            }

            .flow-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .overview-stats {
                grid-template-columns: 1fr;
            }

            .brand-icon {
                width: 38px;
                height: 38px;
                font-size: 17px;
                border-radius: 12px;
            }

            .brand-text {
                font-size: 16px;
            }

            .btn {
                padding: 12px 28px;
                font-size: 14px;
            }

            .btn-lg {
                padding: 14px 36px;
            }
        }

        @media screen and (max-width: 400px) {
            .header-cta { display: none; }
            
            .section-head h2 {
                font-size: 24px;
            }
        }