/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --color-primary: #135E52;
  --color-primary-dark: #0B453C;
  --color-primary-light: #1D7A6C;
  --color-accent: #C99937;
  --color-accent-hover: #B0852C;
  --color-bg: #F7F5F1;
  --color-bg-alt: #EFEBE4;
  --color-bg-dark: #1E2723;
  --color-text: #2A2A28;
  --color-text-secondary: #7A756E;
  --color-border: #E0DBD2;
  --color-white: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 999px;
  --shadow-sm: 0 2px 8px rgba(30,39,35,0.06);
  --shadow-md: 0 12px 32px rgba(30,39,35,0.12);
  --font-main: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "Inter","SF Pro Display","Helvetica Neue",Arial,sans-serif;
  --spacing-section: 96px;
  --spacing-section-mobile: 56px;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
input, select, textarea { box-shadow: none; }

/* ========== Foundation 微调 ========== */
.row { max-width: 1200px; }
.row .columns { padding-left: 15px; padding-right: 15px; }
.row .columns:first-child { padding-left: 15px; }
.row .columns:last-child { padding-right: 15px; }

/* ========== 通用容器 / 区块 ========== */
.section { padding: var(--spacing-section) 0; }
.section-alt { background: var(--color-bg-alt); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-header { margin-bottom: 48px; }
.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  border-left: 4px solid var(--color-primary);
  padding-left: 16px;
  margin-bottom: 10px;
  letter-spacing: .5px;
}
.section-subtitle {
  color: var(--color-text-secondary);
  font-size: 16px;
  max-width: 720px;
  margin-top: 6px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .28s ease;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(19,94,82,0.3);
  outline-offset: 2px;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: scale(0.98); }
.btn-accent { background: var(--color-accent); color: var(--color-white); }
.btn-accent:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,153,55,0.35); animation: pulseGlow 2.4s infinite; }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }
.btn-outline-light { background: transparent; border-color: rgba(255,255,255,0.8); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }
.btn-large { padding: 16px 42px; font-size: 17px; border-radius: 10px; }
.btn-sm { padding: 8px 20px; font-size: 14px; border-radius: 6px; }
.btn-block { width: 100%; }
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 18px rgba(201,153,55,0.25); }
  50% { box-shadow: 0 8px 32px rgba(201,153,55,0.45); }
}

/* ========== 浮动 Dock 导航 ========== */
.site-header {
  position: fixed;
  top: 24px;
  left: 0;
  right: 0;
  z-index: 999;
  padding: 0 20px;
  transition: top .3s ease;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255,255,255,0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(255,255,255,0.5);
  transition: background .3s ease, box-shadow .3s ease;
}
.logo-area { flex-shrink: 0; min-width: 150px; }
.brand-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo .logo-dot {
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(201,153,55,0.2);
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-lg);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
  position: relative;
  transition: color .25s, background .25s;
}
.main-nav a:hover { color: var(--color-primary); background: rgba(19,94,82,0.06); }
.main-nav a.active { color: var(--color-primary); font-weight: 600; }
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-trigger {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  background: rgba(0,0,0,0.04);
  transition: all .25s;
  cursor: pointer;
  border: none;
}
.search-trigger:hover { color: var(--color-primary); background: rgba(19,94,82,0.1); }
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  position: absolute;
  left: 10px;
  transition: all .3s;
}
.menu-toggle span { top: 19px; }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
.menu-toggle.open span { background: transparent; }
.menu-toggle.open span::before { transform: rotate(45deg); top: 0; }
.menu-toggle.open span::after { transform: rotate(-45deg); top: 0; }

/* 滚动后 Dock 变深色 */
.site-header.scrolled .header-inner {
  background: var(--color-primary-dark);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
  border-color: transparent;
}
.site-header.scrolled .brand-logo { color: #fff; }
.site-header.scrolled .main-nav a { color: rgba(255,255,255,0.85); }
.site-header.scrolled .main-nav a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.site-header.scrolled .main-nav a.active { color: #fff; }
.site-header.scrolled .main-nav a.active::after { background: var(--color-accent); }
.site-header.scrolled .search-trigger { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.12); }
.site-header.scrolled .search-trigger:hover { color: #fff; background: rgba(255,255,255,0.2); }

/* 移动端抽屉 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 16px;
  right: 16px;
  z-index: 998;
  background: rgba(11,69,60,0.96);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 16px 12px;
  box-shadow: 0 24px 48px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu.open { display: block; }
.mobile-menu ul li { border-bottom: 1px solid rgba(255,255,255,0.08); }
.mobile-menu ul li:last-child { border-bottom: none; }
.mobile-menu ul a {
  display: block;
  padding: 14px 16px;
  color: rgba(255,255,255,0.92);
  font-size: 16px;
  font-weight: 500;
  border-radius: 10px;
  transition: background .2s;
}
.mobile-menu ul a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.mobile-menu ul a.active { color: var(--color-accent); }

/* ========== Hero 促销主视觉 ========== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(11,69,60,0.92) 0%, rgba(19,94,82,0.78) 45%, rgba(30,39,35,0.6) 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='48' height='48' viewBox='0 0 48 48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M24 0v48M0 24h48' stroke='%23ffffff' stroke-width='0.4' opacity='0.6'/%3E%3C/svg%3E");
  opacity: 0.04;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 740px;
  padding: 40px 20px;
  color: #fff;
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.25);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.95);
  margin-bottom: 28px;
}
.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201,153,55,0.3);
}
.hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 18px;
  color: #fff;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.88);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 620px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.hero-timer-bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.12);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  padding: 12px 24px;
  font-size: 14px;
  color: rgba(255,255,255,0.95);
}
.hero-timer-bar i { color: var(--color-accent); font-size: 16px; }
.hero-timer-bar .timer-num {
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--color-accent);
  font-size: 18px;
  margin-left: 4px;
}

/* ========== 信任背书条 ========== */
.trust-bar {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 28px 0;
}
.trust-bar .row { align-items: center; }
.trust-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 12px 8px;
  border-right: 1px solid var(--color-border);
}
.trust-item:last-child { border-right: none; }
.trust-item i {
  font-size: 24px;
  color: var(--color-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(19,94,82,0.09);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trust-item .trust-text { display: flex; flex-direction: column; }
.trust-item .trust-num {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}
.trust-item .trust-label { font-size: 13px; color: var(--color-text-secondary); }

/* ========== 优惠阶梯区 ========== */
.plans-section { background: var(--color-bg); }
.plans-grid { display: flex; gap: 28px; }
.plan-card {
  flex: 1;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
  box-shadow: var(--shadow-sm);
}
.plan-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(19,94,82,0.3); }
.plan-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 12px 40px rgba(19,94,82,0.16);
  transform: scale(1.02);
}
.plan-card.featured:hover { transform: scale(1.02) translateY(-6px); box-shadow: 0 16px 48px rgba(19,94,82,0.22); }
.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 18px;
  border-radius: var(--radius-lg);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(201,153,55,0.35);
  letter-spacing: .5px;
}
.plan-tag { font-size: 13px; color: var(--color-text-secondary); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; }
.plan-name { font-size: 22px; font-weight: 700; color: var(--color-text); margin-bottom: 16px; }
.plan-price { font-size: 28px; font-weight: 800; color: var(--color-accent); font-family: var(--font-num); margin-bottom: 24px; line-height: 1.2; }
.plan-price small { font-size: 15px; font-weight: 500; color: var(--color-text-secondary); margin-right: 2px; }
.plan-price .per { font-size: 14px; color: var(--color-text-secondary); font-weight: 400; }
.plan-features { flex: 1; margin-bottom: 28px; }
.plan-features li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px dashed var(--color-border);
}
.plan-features li:last-child { border-bottom: none; }
.plan-features li i { color: var(--color-primary); font-size: 14px; margin-top: 5px; }
.plan-cta { display: block; text-align: center; }

/* ========== 套餐对比区 ========== */
.compare-section { background: var(--color-bg-alt); }
.compare-table-wrap {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}
.compare-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.compare-table thead th {
  background: var(--color-primary-dark);
  color: #fff;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  border-bottom: 3px solid rgba(255,255,255,0.08);
}
.compare-table thead th:first-child { text-align: left; border-radius: var(--radius-md) 0 0 0; }
.compare-table thead th:last-child { border-radius: 0 var(--radius-md) 0 0; }
.compare-table thead th.recommended-col {
  background: var(--color-primary);
  position: relative;
}
.compare-table thead th.recommended-col::after {
  content: '推荐';
  position: absolute;
  top: 8px;
  right: 12px;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-lg);
}
.compare-table tbody td {
  padding: 16px 24px;
  text-align: center;
  font-size: 15px;
  border-bottom: 1px solid var(--color-border);
}
.compare-table tbody td:first-child { text-align: left; font-weight: 600; color: var(--color-text); }
.compare-table tbody tr:nth-child(even) { background: rgba(239,235,228,0.4); }
.compare-table tbody tr:hover { background: rgba(19,94,82,0.04); }
.compare-table tbody td.highlight-col { background: rgba(19,94,82,0.05); border-left: 2px solid var(--color-primary); border-right: 2px solid var(--color-primary); }
.compare-table tbody td i.fa-check { color: var(--color-primary); font-size: 18px; }
.compare-table tbody td i.fa-minus { color: #C9C2B8; font-size: 16px; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table .btn-sm { margin-top: 4px; }

/* 移动端套餐卡片 */
.mobile-plan-cards { display: none; }
.mobile-plan-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 28px 24px;
  margin-bottom: 20px;
  border: 2px solid var(--color-border);
  position: relative;
}
.mobile-plan-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.mobile-plan-card .plan-name { font-size: 20px; margin-bottom: 8px; }
.mobile-plan-card .plan-price { font-size: 24px; margin-bottom: 16px; }
.mobile-plan-card .plan-features { margin-bottom: 12px; }
.mobile-plan-card .plan-badge { top: -12px; }

/* ========== 限时入口区 ========== */
.promo-section {
  position: relative;
  background: var(--color-bg-dark);
  background-image: radial-gradient(ellipse at 80% 20%, rgba(201,153,55,0.12), transparent 60%),
    linear-gradient(135deg, #1E2723 0%, #0B453C 100%);
  color: #fff;
  overflow: hidden;
}
.promo-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 0v40M0 20h40' stroke='%23ffffff' stroke-width='0.3'/%3E%3C/svg%3E");
  opacity: 0.03;
}
.promo-inner { position: relative; z-index: 2; display: flex; align-items: center; gap: 60px; }
.promo-left { flex: 1; }
.promo-title { font-size: 30px; font-weight: 700; margin-bottom: 14px; line-height: 1.3; }
.promo-title span { color: var(--color-accent); }
.promo-desc { color: rgba(255,255,255,0.7); margin-bottom: 24px; max-width: 520px; }
.promo-right { flex-shrink: 0; text-align: center; }
.countdown-grid { display: flex; gap: 14px; margin-bottom: 28px; }
.countdown-cell {
  background: rgba(255,255,255,0.06);
  border: 2px solid rgba(201,153,55,0.6);
  border-radius: var(--radius-sm);
  width: 84px;
  height: 92px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.countdown-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
}
.countdown-label { font-size: 12px; color: rgba(255,255,255,0.55); margin-top: 4px; }

/* ========== 咨询表单区 ========== */
.contact-section { background: var(--color-bg); }
.contact-wrap { display: flex; align-items: flex-start; gap: 48px; }
.contact-left { flex: 1; }
.contact-left .section-title { margin-bottom: 18px; }
.contact-info-list { margin-top: 24px; }
.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--color-text);
}
.contact-info-list li i {
  width: 40px;
  height: 40px;
  background: rgba(19,94,82,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 16px;
  flex-shrink: 0;
}
.contact-info-list li .info-label { font-size: 13px; color: var(--color-text-secondary); display: block; }
.contact-info-list li .info-value { font-weight: 600; }
.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 36px;
  flex: 1;
  max-width: 520px;
}
.contact-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.contact-card .form-desc { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 24px; }
.contact-form label { font-size: 14px; font-weight: 600; display: block; margin-bottom: 6px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  margin-bottom: 18px;
  font-size: 15px;
  transition: border-color .25s, box-shadow .25s;
  height: auto;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(19,94,82,0.15);
  outline: none;
  background: #fff;
}
.contact-form textarea { min-height: 90px; resize: vertical; }
.form-privacy { font-size: 13px; color: var(--color-text-secondary); margin-top: 14px; text-align: center; }
.form-message { display: none; padding: 12px 16px; border-radius: var(--radius-sm); background: rgba(19,94,82,0.08); color: var(--color-primary); font-size: 14px; margin-top: 14px; text-align: center; }

/* ========== 最新资讯区 ========== */
.latest-section { background: var(--color-bg-alt); }
.latest-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; }
.latest-header .section-title { margin-bottom: 0; }
.view-all {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
}
.view-all:hover { color: var(--color-primary-dark); gap: 10px; }
.post-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
  height: 100%;
}
.post-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.post-thumb {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-alt);
}
.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.post-card:hover .post-thumb img { transform: scale(1.05); }
.post-category {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-lg);
  z-index: 2;
}
.post-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-title a:hover { color: var(--color-primary); }
.post-meta { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.post-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 14px;
}
.read-more {
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.read-more:hover { color: var(--color-primary-dark); gap: 10px; }

/* 空态 */
.empty-state {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 60px 20px;
  text-align: center;
  width: 100%;
}
.empty-state svg { margin-bottom: 18px; color: var(--color-text-secondary); }
.empty-state p { font-size: 16px; color: var(--color-text-secondary); }

/* ========== 页脚 ========== */
.footer-cta {
  background: var(--color-bg-dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.footer-cta::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(201,153,55,0.08);
}
.footer-cta-inner { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; }
.footer-cta h2 { color: #fff; font-size: 30px; font-weight: 700; margin-bottom: 14px; }
.footer-cta p { color: rgba(255,255,255,0.65); margin-bottom: 30px; font-size: 16px; }
.footer-cta .btn { margin: 0 8px; }
.site-footer { background: var(--color-bg-dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 60px 0 0; color: rgba(255,255,255,0.72); }
.footer-grid { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-brand { flex: 1.4; min-width: 240px; }
.footer-brand .brand-logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.55); }
.footer-col { flex: 1; min-width: 160px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.55); display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul a:hover { color: var(--color-accent); }
.footer-col ul a i { font-size: 12px; }
.footer-contact li { font-size: 14px; color: rgba(255,255,255,0.55); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact li i { width: 32px; height: 32px; border-radius: 8px; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: var(--color-accent); font-size: 14px; flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .hero h1 { font-size: 34px; }
  .plans-grid { flex-direction: column; }
  .plan-card.featured { transform: none; }
  .plan-card.featured:hover { transform: translateY(-6px); }
  .promo-inner { flex-direction: column; gap: 40px; text-align: center; }
  .promo-desc { margin-left: auto; margin-right: auto; }
  .countdown-grid { justify-content: center; }
  .contact-wrap { flex-direction: column; }
  .contact-card { max-width: 100%; }
  .trust-item { border-right: none; border-bottom: 1px solid var(--color-border); padding: 12px 4px; }
  .trust-bar .columns:last-child .trust-item { border-bottom: none; }
}

@media (max-width: 640px) {
  .section { padding: var(--spacing-section-mobile) 0; }
  .section-title { font-size: 24px; }
  .site-header { top: 12px; padding: 0 12px; }
  .header-inner { padding: 8px 16px; border-radius: 20px; }
  .brand-logo { font-size: 16px; }
  .main-nav { display: none; }
  .menu-toggle { display: block; }
  .header-actions .btn-sm { display: none; }
  .hero { min-height: 75vh; }
  .hero-content { padding: 24px 16px; }
  .hero h1 { font-size: 27px; }
  .hero-subtitle { font-size: 16px; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
  .hero-timer-bar { width: 100%; justify-content: center; flex-wrap: wrap; padding: 10px 16px; }
  .trust-bar { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .trust-bar .row { flex-wrap: nowrap; min-width: 500px; }
  .trust-item { flex-direction: column; text-align: center; gap: 8px; padding: 10px 4px; }
  .plans-section .container { padding: 0 14px; }
  .plan-card { padding: 28px 20px; }
  .plan-price { font-size: 24px; }
  .compare-table-wrap { display: none; }
  .mobile-plan-cards { display: block; }
  .promo-title { font-size: 24px; }
  .countdown-cell { width: 64px; height: 76px; }
  .countdown-num { font-size: 24px; }
  .countdown-label { font-size: 11px; }
  .contact-card { padding: 24px 18px; }
  .latest-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .post-card { margin-bottom: 20px; }
  .footer-grid { flex-direction: column; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-cta { padding: 48px 0; }
  .footer-cta h2 { font-size: 24px; }
  .footer-cta .btn { width: 80%; margin-bottom: 12px; }
}

/* roulang page: category1 */
:root {
            --color-primary: #135E52;
            --color-primary-dark: #0B453C;
            --color-primary-light: #1D7A6C;
            --color-accent: #C99937;
            --color-accent-hover: #B0852C;
            --color-bg: #F7F5F1;
            --color-bg-alt: #EFEBE4;
            --color-bg-dark: #1E2723;
            --color-text: #2A2A28;
            --color-text-secondary: #7A756E;
            --color-border: #E0DBD2;
            --color-white: #FFFFFF;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(30, 39, 35, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 39, 35, 0.12);
            --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

        ul,
        ol {
            list-style: none;
            margin: 0;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ::selection {
            background: rgba(19, 94, 82, 0.15);
            color: var(--color-primary-dark);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
        }

        /* ===== 顶部浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 24px;
            left: 0;
            right: 0;
            z-index: 999;
            padding: 0 20px;
        }

        .dock {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 999px;
            padding: 10px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .site-header.scrolled .dock {
            background: var(--color-primary-dark);
            border-color: rgba(255, 255, 255, 0.12);
            box-shadow: var(--shadow-lg);
        }

        .site-header.scrolled .brand-logo,
        .site-header.scrolled .brand-logo:hover {
            color: #fff;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.5px;
        }

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

        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
            box-shadow: 0 0 0 3px rgba(201, 153, 55, 0.2);
        }

        .main-nav ul {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .main-nav a {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(19, 94, 82, 0.08);
        }

        .main-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            position: relative;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 4px;
            transform: translateX(-50%);
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        .site-header.scrolled .main-nav a {
            color: rgba(255, 255, 255, 0.85);
        }

        .site-header.scrolled .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
        }

        .site-header.scrolled .main-nav a.active {
            color: #fff;
        }

        .site-header.scrolled .main-nav a.active::after {
            background: var(--color-accent);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            font-size: 22px;
            color: var(--color-primary);
            cursor: pointer;
            padding: 6px;
            line-height: 1;
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .site-header.scrolled .nav-toggle {
            color: #fff;
        }

        .nav-toggle:hover {
            background: rgba(19, 94, 82, 0.1);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            cursor: pointer;
            border: 1px solid transparent;
            text-align: center;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

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

        .btn-outline:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 153, 55, 0.35);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.75);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            border-color: #fff;
            color: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 999px;
        }

        .btn:focus-visible,
        .main-nav a:focus-visible,
        .faq-item summary:focus-visible {
            outline: 3px solid rgba(19, 94, 82, 0.4);
            outline-offset: 2px;
        }

        .btn:active {
            transform: scale(0.98);
        }

        /* ===== Hero 横幅 ===== */
        .page-hero {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 160px 0 100px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 69, 60, 0.82) 0%, rgba(30, 39, 35, 0.72) 100%);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-kicker {
            display: inline-block;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 6px 20px;
            border-radius: 999px;
            font-size: 13px;
            letter-spacing: 3px;
            margin-bottom: 22px;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .page-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            max-width: 900px;
            margin: 0 auto 18px;
            letter-spacing: 1px;
        }

        .page-hero .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

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

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 96px 0;
        }

        .section-tag {
            display: inline-block;
            color: var(--color-primary);
            background: rgba(19, 94, 82, 0.08);
            padding: 5px 16px;
            border-radius: 4px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--color-text);
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 2px;
            background: var(--color-primary);
        }

        .text-center {
            text-align: center;
        }

        .text-center .section-title {
            padding-left: 0;
        }

        .text-center .section-title::before {
            display: none;
        }

        .section-sub {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 660px;
            margin: 0 auto 50px;
            line-height: 1.7;
        }

        /* ===== 左图右文区 ===== */
        .split-intro {
            background: var(--color-white);
            padding: 96px 0;
        }

        .split-intro .grid-x {
            align-items: center;
        }

        .split-img {
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: auto;
            object-fit: cover;
            border: 1px solid var(--color-border);
        }

        .split-intro h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .split-intro .intro-desc {
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            font-size: 15px;
        }

        .check-list {
            margin: 28px 0;
        }

        .check-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 7px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
        }

        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--color-primary);
            font-size: 14px;
            width: 22px;
            height: 22px;
            background: rgba(19, 94, 82, 0.1);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ===== 学习路径时间线 ===== */
        .learning-path {
            background: var(--color-bg-alt);
            padding: 96px 0;
        }

        .timeline {
            max-width: 920px;
            margin: 0 auto;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 24px;
            bottom: 24px;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
            opacity: 0.5;
        }

        .timeline-item {
            display: flex;
            gap: 28px;
            align-items: flex-start;
            margin-bottom: 36px;
            position: relative;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-white);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            box-shadow: var(--shadow-sm);
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        .timeline-card {
            background: var(--color-white);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 20px;
            flex: 1;
            align-items: center;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            border: 1px solid var(--color-border);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-primary-light);
        }

        .timeline-content {
            flex: 1;
        }

        .timeline-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--color-text);
        }

        .timeline-content h3 i {
            color: var(--color-accent);
            font-size: 20px;
        }

        .timeline-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .timeline-card img {
            width: 130px;
            height: 96px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
            border: 1px solid var(--color-border);
        }

        /* ===== 要点卡片 ===== */
        .topic-cards {
            background: var(--color-bg);
            padding: 96px 0;
        }

        .topic-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            padding: 32px 24px 26px;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-light);
        }

        .topic-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(19, 94, 82, 0.12), rgba(201, 153, 55, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-primary);
            margin-bottom: 20px;
            transition: transform 0.3s ease;
        }

        .topic-card:hover .topic-icon {
            transform: scale(1.06);
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .topic-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .card-link i {
            transition: transform 0.2s ease;
            font-size: 13px;
        }

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

        /* ===== FAQ 手风琴 ===== */
        .faq-section {
            background: var(--color-bg-alt);
            padding: 96px 0;
        }

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 20px 24px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .faq-item[open] {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
            padding: 4px 0;
            color: var(--color-text);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 24px;
            font-weight: 400;
            color: var(--color-primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            line-height: 1;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(19, 94, 82, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: #fff;
        }

        .faq-item p {
            margin-top: 14px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            padding-top: 2px;
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            background: var(--color-bg-dark);
            background-image: radial-gradient(circle at 50% 110%, rgba(201, 153, 55, 0.16), transparent 60%);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 26px 26px;
            pointer-events: none;
        }

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

        .cta-banner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 68px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 44px;
            padding-bottom: 48px;
        }

        .footer-brand .brand-logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 11px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

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

        .footer-contact li {
            font-size: 14px;
            margin-bottom: 11px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-contact i {
            color: var(--color-accent);
            width: 20px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 34px;
            }

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

            .section-block,
            .split-intro,
            .learning-path,
            .topic-cards,
            .faq-section {
                padding: 80px 0;
            }

            .cta-banner {
                padding: 84px 0;
            }
        }

        @media (max-width: 768px) {
            .dock {
                padding: 10px 20px;
            }

            .main-nav ul {
                gap: 0;
            }

            .main-nav a {
                padding: 6px 10px;
                font-size: 14px;
            }

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

            .page-hero .hero-sub {
                font-size: 16px;
            }

            .section-title {
                font-size: 26px;
            }

            .timeline-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .timeline-card img {
                width: 100%;
                height: auto;
                max-height: 180px;
            }
        }

        @media (max-width: 640px) {
            body {
                font-size: 15px;
            }

            .site-header {
                top: 12px;
                padding: 0 12px;
            }

            .dock {
                border-radius: 50px;
                padding: 8px 16px;
                gap: 10px;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 68px;
                left: 12px;
                right: 12px;
                background: rgba(11, 69, 60, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: 16px;
                padding: 10px;
                box-shadow: var(--shadow-lg);
                border: 1px solid rgba(255, 255, 255, 0.1);
            }

            .main-nav.open {
                display: block;
            }

            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }

            .main-nav a {
                display: block;
                color: rgba(255, 255, 255, 0.9) !important;
                padding: 14px 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                border-radius: 0;
                font-size: 15px;
            }

            .main-nav a:last-child {
                border-bottom: 0;
            }

            .main-nav a.active {
                color: #fff !important;
                background: rgba(255, 255, 255, 0.08);
            }

            .main-nav a.active::after {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .dock-actions .btn-sm {
                display: none;
            }

            .page-hero {
                min-height: 62vh;
                padding: 130px 0 70px;
            }

            .page-hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .page-hero .hero-sub {
                font-size: 15px;
                line-height: 1.65;
                margin-bottom: 28px;
            }

            .hero-actions,
            .cta-actions {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }

            .hero-actions .btn,
            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }

            .section-block,
            .split-intro,
            .learning-path,
            .topic-cards,
            .faq-section {
                padding: 60px 0;
            }

            .cta-banner {
                padding: 64px 0;
            }

            .section-title {
                font-size: 23px;
                margin-bottom: 10px;
            }

            .section-sub {
                font-size: 15px;
                margin-bottom: 36px;
            }

            .split-intro h2 {
                font-size: 22px;
            }

            .timeline {
                padding-left: 0;
            }

            .timeline::before {
                left: 24px;
            }

            .timeline-item {
                flex-direction: column;
                gap: 12px;
                margin-bottom: 28px;
            }

            .timeline-num {
                width: 48px;
                height: 48px;
                font-size: 15px;
            }

            .timeline-card {
                padding: 18px;
            }

            .timeline-content h3 {
                font-size: 17px;
            }

            .timeline-content p {
                font-size: 14px;
            }

            .timeline-card img {
                max-height: 150px;
            }

            .topic-card {
                padding: 24px 20px 20px;
            }

            .topic-card h3 {
                font-size: 17px;
            }

            .faq-item {
                padding: 16px 18px;
            }

            .faq-item summary {
                font-size: 15px;
            }

            .faq-item p {
                font-size: 14px;
            }

            .cta-banner h2 {
                font-size: 24px;
            }

            .cta-banner p {
                font-size: 15px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }

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

            .container {
                padding: 0 20px;
            }
        }

/* roulang page: article */
:root{
  --color-primary:#135E52;
  --color-primary-dark:#0B453C;
  --color-primary-light:#1D7A6C;
  --color-accent:#C99937;
  --color-accent-hover:#B0852C;
  --color-bg:#F7F5F1;
  --color-bg-alt:#EFEBE4;
  --color-bg-dark:#1E2723;
  --color-text:#2A2A28;
  --color-text-secondary:#7A756E;
  --color-border:#E0DBD2;
  --color-white:#FFFFFF;
  --radius-lg:12px;
  --radius-md:8px;
  --radius-sm:4px;
  --shadow-card:0 2px 8px rgba(30,39,35,0.06);
  --shadow-hover:0 12px 32px rgba(30,39,35,0.12);
  --font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--color-bg);color:var(--color-text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--color-primary-light)}
ul,ol{list-style:none}
button{font-family:inherit;border:none;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section-pad{padding:96px 0}
@media(max-width:1024px){.section-pad{padding:72px 0}}
@media(max-width:640px){.section-pad{padding:56px 0}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:8px;font-size:15px;font-weight:600;line-height:1;transition:var(--transition);border:1px solid transparent;white-space:nowrap}
.btn:focus-visible,.main-nav a:focus-visible,.nav-toggle:focus-visible{outline:3px solid rgba(19,94,82,.4);outline-offset:2px}
.btn-primary{background:var(--color-primary);color:var(--color-white)}
.btn-primary:hover{background:var(--color-primary-dark);color:var(--color-white);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{border-color:var(--color-primary);color:var(--color-primary);background:transparent}
.btn-outline:hover{background:var(--color-primary);color:var(--color-white);transform:translateY(-2px)}
.btn-accent{background:var(--color-accent);color:var(--color-white)}
.btn-accent:hover{background:var(--color-accent-hover);color:var(--color-white);transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,153,55,.3)}
.btn-accent:active{transform:scale(.98)}
.btn-lg{padding:16px 40px;font-size:16px}
/* 导航 */
.main-nav{position:fixed;top:24px;left:50%;transform:translateX(-50%);width:calc(100% - 48px);max-width:1200px;z-index:1000;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 22px;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:999px;box-shadow:var(--shadow-card);transition:var(--transition)}
.main-nav.scrolled{background:rgba(11,69,60,.96);box-shadow:0 12px 32px rgba(30,39,35,.3)}
.main-nav.scrolled .brand-logo{color:#fff}
.main-nav.scrolled .brand-logo .logo-dot{background:var(--color-accent)}
.main-nav.scrolled ul li a{color:rgba(255,255,255,.85)}
.main-nav.scrolled ul li a:hover,.main-nav.scrolled ul li a.active{color:#fff}
.main-nav .brand-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--color-primary);min-width:150px;letter-spacing:.5px}
.main-nav .brand-logo .logo-dot{width:10px;height:10px;border-radius:50%;background:var(--color-primary);display:inline-block;flex-shrink:0}
.main-nav ul{display:flex;align-items:center;gap:2px;margin:0}
.main-nav ul li a{display:block;padding:10px 16px;font-size:14px;font-weight:500;color:var(--color-text);border-radius:999px;position:relative;transition:var(--transition)}
.main-nav ul li a:hover{color:var(--color-primary);background:rgba(19,94,82,.06)}
.main-nav ul li a.active{color:var(--color-primary);font-weight:600;background:rgba(19,94,82,.08)}
.main-nav ul li a.active::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:6px;height:6px;border-radius:50%;background:var(--color-primary)}
.main-nav.scrolled ul li a.active{background:rgba(255,255,255,.15)}
.main-nav.scrolled ul li a.active::after{background:var(--color-accent)}
.nav-toggle{display:none;background:transparent;color:var(--color-primary);font-size:22px;padding:8px 12px;border-radius:8px}
.main-nav.scrolled .nav-toggle{color:#fff}
/* 面包屑 */
.breadcrumb-bar{background:var(--color-bg-alt);border-bottom:1px solid var(--color-border);padding:10px 0;font-size:13px;color:var(--color-text-secondary)}
.breadcrumb-bar .container{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.breadcrumb-bar a{color:var(--color-text-secondary)}
.breadcrumb-bar a:hover{color:var(--color-primary)}
.breadcrumb-bar .sep{color:var(--color-border)}
.breadcrumb-bar .current{color:var(--color-primary);font-weight:500;max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* 文章Hero */
.article-hero{position:relative;padding:170px 0 90px;background:linear-gradient(135deg,rgba(11,69,60,.92),rgba(30,39,35,.95)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;text-align:center;overflow:hidden}
.article-hero::before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at center,rgba(201,153,55,.08) 0%,transparent 60%);pointer-events:none}
.article-hero .container{position:relative;z-index:1}
.article-cat{display:inline-flex;align-items:center;gap:6px;background:rgba(201,153,55,.2);border:1px solid rgba(201,153,55,.4);color:#E8C88A;font-size:13px;font-weight:600;padding:6px 18px;border-radius:999px;margin-bottom:16px}
.article-hero h1{font-size:38px;font-weight:700;line-height:1.35;max-width:800px;margin:0 auto 16px;color:#fff}
.article-excerpt{font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);max-width:680px;margin:0 auto 24px}
.article-meta{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:24px;font-size:13px;color:rgba(255,255,255,.65)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--color-accent)}
/* 正文 */
.article-body{padding:72px 0 48px}
.article-main{max-width:800px;margin:0 auto;background:#fff;border-radius:16px;padding:56px 64px;box-shadow:0 2px 8px rgba(30,39,35,.04);border:1px solid rgba(224,219,210,.5)}
.article-content{font-size:16px;line-height:1.9;color:var(--color-text)}
.article-content p{margin-bottom:1.5em}
.article-content h2{font-size:26px;font-weight:700;color:var(--color-primary-dark);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--color-accent)}
.article-content h3{font-size:20px;font-weight:600;color:var(--color-primary-dark);margin:32px 0 12px}
.article-content ul,.article-content ol{margin:1em 0 1.5em;padding-left:1.4em}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:.5em}
.article-content blockquote{border-left:4px solid var(--color-accent);background:var(--color-bg-alt);padding:16px 24px;border-radius:0 8px 8px 0;margin:24px 0;font-style:italic;color:var(--color-text-secondary)}
.article-content img{border-radius:12px;border:1px solid var(--color-border);margin:24px 0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;border-radius:8px;overflow:hidden}
.article-content table th{background:var(--color-primary);color:#fff;padding:12px 16px;text-align:left;font-weight:600}
.article-content table td{padding:12px 16px;border-bottom:1px solid var(--color-border)}
.article-content table tr:nth-child(even){background:var(--color-bg)}
.article-content a{color:var(--color-primary);border-bottom:1px solid rgba(19,94,82,.3)}
.article-content a:hover{border-bottom-color:var(--color-primary)}
.article-content code{background:var(--color-bg-alt);padding:2px 8px;border-radius:4px;font-size:14px}
/* 空态 */
.not-found{text-align:center;padding:40px 0}
.not-found-icon{font-size:56px;color:var(--color-border);margin-bottom:24px}
.not-found h2{font-size:28px;color:var(--color-text);margin-bottom:8px}
.not-found p{color:var(--color-text-secondary);margin-bottom:24px}
/* 标签 */
.article-tags{padding:0 0 48px}
.article-tags .container{max-width:800px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;justify-content:center}
.tag{display:inline-flex;align-items:center;gap:4px;background:var(--color-bg-alt);border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:13px;font-weight:500;padding:6px 16px;border-radius:999px;transition:var(--transition)}
.tag:hover{border-color:var(--color-primary);color:var(--color-primary);background:rgba(19,94,82,.04)}
/* 上下篇 */
.post-nav{padding:0 0 48px}
.post-nav .container{max-width:800px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.post-nav-btn{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--color-border);border-radius:12px;padding:20px 24px;transition:var(--transition);color:var(--color-text)}
.post-nav-btn:hover{border-color:var(--color-primary);box-shadow:var(--shadow-hover);color:var(--color-primary);transform:translateY(-2px)}
.post-nav-btn .label{font-size:12px;color:var(--color-text-secondary)}
.post-nav-btn .title{font-size:15px;font-weight:600;line-height:1.5}
.post-nav-next{text-align:right;align-items:flex-end}
/* 相关推荐 */
.related-section{padding:72px 0;background:var(--color-bg-alt);border-top:1px solid var(--color-border)}
.related-header{text-align:center;margin-bottom:48px}
.related-header h2{font-size:28px;font-weight:700;color:var(--color-text);position:relative;display:inline-block;padding-left:16px}
.related-header h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:24px;background:var(--color-accent);border-radius:2px}
.related-header p{color:var(--color-text-secondary);font-size:14px;margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(224,219,210,.5);transition:var(--transition);display:block;color:var(--color-text)}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:transparent;color:var(--color-text)}
.related-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--color-bg-alt)}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-cover img{transform:scale(1.05)}
.post-badge{position:absolute;top:12px;left:12px;background:var(--color-primary);color:#fff;font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px;box-shadow:0 2px 8px rgba(30,39,35,.2)}
.related-body{padding:20px 22px 24px}
.related-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--color-text);transition:var(--transition);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover .related-body h3{color:var(--color-primary)}
.related-body p{font-size:13px;color:var(--color-text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.related-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--color-text-secondary)}
.related-meta i{font-size:12px;margin-right:4px}
.related-meta .more{color:var(--color-primary);font-weight:500;display:inline-flex;align-items:center;gap:4px}
.back-to-list{text-align:center;margin-top:48px}
/* CTA */
.cta-section{background:var(--color-bg-dark);padding:72px 0;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(201,153,55,.12) 0%,transparent 70%);pointer-events:none}
.cta-inner{position:relative;text-align:center;max-width:680px;margin:0 auto}
.cta-inner h2{color:#fff;font-size:28px;font-weight:700;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.7);font-size:15px;margin-bottom:32px}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
/* 页脚 */
.site-footer{background:var(--color-bg-dark);padding:64px 0 0;color:rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-logo{color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-logo .logo-dot{background:var(--color-accent)}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--color-accent);border-radius:1px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.6);font-size:13px;display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--color-accent);padding-left:4px}
.footer-col ul li a i{font-size:10px;color:var(--color-accent)}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-contact li i{color:var(--color-accent);width:18px;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.4)}
.footer-bottom a:hover{color:var(--color-accent)}
/* 响应式 */
@media(max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .article-main{padding:40px 32px}
}
@media(max-width:640px){
  .main-nav{top:12px;width:calc(100% - 24px);padding:8px 16px}
  .main-nav ul{display:none}
  .main-nav ul.open{display:flex;position:fixed;top:70px;left:12px;right:12px;background:rgba(11,69,60,.97);border-radius:16px;padding:16px;flex-direction:column;gap:4px;max-height:calc(100vh - 100px);overflow-y:auto;backdrop-filter:blur(12px)}
  .main-nav ul.open li a{color:#fff;padding:14px 20px;border-radius:10px;border-bottom:1px solid rgba(255,255,255,.06)}
  .main-nav ul.open li a:hover,.main-nav ul.open li a.active{background:rgba(255,255,255,.12);color:#fff}
  .main-nav ul.open li a.active::after{display:none}
  .nav-toggle{display:block}
  .main-nav.scrolled ul.open{background:rgba(11,69,60,.98)}
  .breadcrumb-bar{padding:8px 0;font-size:12px}
  .breadcrumb-bar .current{max-width:140px}
  .article-hero{padding:140px 0 60px}
  .article-hero h1{font-size:26px}
  .article-excerpt{font-size:14px;padding:0 16px}
  .article-meta{gap:12px;font-size:12px}
  .article-main{padding:28px 20px;border-radius:12px}
  .article-content{font-size:15px;line-height:1.85}
  .article-content h2{font-size:22px;padding-left:10px}
  .post-nav .container{grid-template-columns:1fr;gap:12px}
  .post-nav-next{text-align:left;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .related-section{padding:56px 0}
  .related-header h2{font-size:24px}
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .footer-bottom{justify-content:center;text-align:center}
  .btn{padding:12px 24px;font-size:14px}
  .btn-lg{padding:14px 32px}
}
@media(max-width:400px){
  .article-hero h1{font-size:22px}
  .article-meta{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root {
  --color-primary: #135E52;
  --color-primary-dark: #0B453C;
  --color-primary-light: #1D7A6C;
  --color-accent: #C99937;
  --color-accent-hover: #B0852C;
  --color-bg: #F7F5F1;
  --color-bg-alt: #EFEBE4;
  --color-bg-dark: #1E2723;
  --color-text: #2A2A28;
  --color-text-secondary: #7A756E;
  --color-border: #E0DBD2;
  --color-white: #FFFFFF;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 4px;
  --shadow-card: 0 2px 8px rgba(30,39,35,0.06);
  --shadow-hover: 0 12px 32px rgba(30,39,35,0.12);
  --spacing-section: 80px;
  --spacing-section-mobile: 48px;
  --font-sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .3s ease;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  padding-left: 14px;
  border-left: 4px solid var(--color-primary);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
  text-align: center;
}

.btn:focus-visible {
  outline: 3px solid rgba(201,153,55,.4);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-primary:active {
  transform: scale(.98);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(201,153,55,.35);
}

.btn-accent:active {
  transform: scale(.98);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.75);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

/* ===== 顶部导航 DOCK ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 24px 16px 0;
  pointer-events: none;
}

.nav-dock {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 999px;
  padding: 10px 24px;
  border: 1px solid rgba(255,255,255,.6);
  box-shadow: 0 8px 24px rgba(30,39,35,.08);
  pointer-events: auto;
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.nav-dock.scrolled {
  background: rgba(11,69,60,.96);
  box-shadow: 0 12px 32px rgba(30,39,35,.2);
  border-color: rgba(255,255,255,.08);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: .5px;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  position: relative;
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 999px;
  transition: color .25s ease, background .25s ease;
}

.main-nav a:hover {
  color: var(--color-primary);
  background: rgba(19,94,82,.06);
}

.main-nav a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.nav-dock.scrolled .brand-logo {
  color: #fff;
}

.nav-dock.scrolled .main-nav a {
  color: rgba(255,255,255,.88);
}

.nav-dock.scrolled .main-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}

.nav-dock.scrolled .main-nav a.active {
  color: #fff;
}

.nav-dock.scrolled .main-nav a.active::after {
  background: var(--color-accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
  transition: all .25s ease;
}

.nav-dock.scrolled .nav-cta {
  background: var(--color-accent);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.nav-dock.scrolled .nav-cta:hover {
  background: var(--color-accent-hover);
}

.nav-burger {
  display: none;
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--color-primary);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: color .25s ease;
}

.nav-dock.scrolled .nav-burger {
  color: #fff;
}

/* ===== 分类 Hero ===== */
.category-hero {
  position: relative;
  min-height: 66vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 160px 0 90px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(11,69,60,.93) 0%, rgba(19,94,82,.78) 55%, rgba(30,39,35,.9) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  color: #F5E7C8;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.category-hero h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  margin-bottom: 16px;
}

.brand-highlight {
  color: #F2C873;
  font-weight: 800;
}

.category-hero .hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,.85);
  line-height: 1.8;
  max-width: 620px;
  margin: 0 auto 34px;
}

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

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 36px;
  margin-top: 52px;
}

.hero-stats .stat-item {
  text-align: center;
  padding: 18px 28px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 12px;
  backdrop-filter: blur(6px);
}

.hero-stats .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: #F2C873;
  display: block;
  line-height: 1.3;
}

.hero-stats .stat-label {
  font-size: 13px;
  color: rgba(255,255,255,.75);
  margin-top: 4px;
  display: block;
}

/* ===== 窄文导读 ===== */
.intro-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.intro-narrow {
  max-width: 800px;
  margin: 0 auto;
}

.intro-narrow p {
  font-size: 15.5px;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: 20px;
}

.intro-narrow p:last-child {
  margin-bottom: 0;
}

.intro-narrow .intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.intro-narrow .tag-chip {
  display: inline-block;
  padding: 6px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  box-shadow: 0 1px 4px rgba(30,39,35,.04);
}

/* ===== 福利卡片网格 ===== */
.benefit-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg-alt);
}

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

.benefit-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(19,94,82,.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
  transition: background .3s ease, color .3s ease;
}

.benefit-card:hover .benefit-icon {
  background: var(--color-primary);
  color: #fff;
}

.benefit-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--color-text-secondary);
  flex: 1;
}

.benefit-card .benefit-link {
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .25s ease;
}

.benefit-card .benefit-link:hover {
  gap: 10px;
  color: var(--color-accent-hover);
}

/* ===== 领取步骤 ===== */
.steps-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.steps-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: flex;
  gap: 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
}

.step-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}

.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.steps-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  width: 100%;
  object-fit: cover;
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg-alt);
}

.faq-narrow {
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .3s ease;
}

.faq-item[open] {
  box-shadow: var(--shadow-card);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-text);
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: '+';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}

.faq-item[open] summary::before {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}

.faq-answer {
  padding: 0 22px 18px 64px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(120deg, rgba(11,69,60,.96), rgba(30,39,35,.93)), url('/assets/images/backpic/back-2.png') center / cover;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.cta-text p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  max-width: 520px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg-dark);
  padding: 64px 0 0;
  color: rgba(255,255,255,.75);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .brand-logo {
  color: #fff;
  font-size: 21px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,.62);
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,.65);
  transition: color .25s ease, padding-left .25s ease;
}

.footer-col ul a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-col ul a i {
  font-size: 12px;
  color: var(--color-accent);
  margin-right: 6px;
}

.footer-contact li {
  font-size: 14px;
  color: rgba(255,255,255,.65);
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.7;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0 26px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

.footer-bottom a {
  color: rgba(255,255,255,.55);
  transition: color .25s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root {
    --spacing-section: 64px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

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

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

  .steps-image {
    order: -1;
  }

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

@media (max-width: 640px) {
  :root {
    --spacing-section: 48px;
    --spacing-section-mobile: 40px;
  }

  .site-header {
    padding: 12px 12px 0;
  }

  .nav-dock {
    padding: 8px 16px;
    border-radius: 20px;
  }

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

  .nav-cta {
    display: none;
  }

  .nav-burger {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(11,69,60,.97);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right .35s ease;
    border-radius: 0;
    z-index: 999;
  }

  .main-nav.is-open {
    right: 0;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 8px;
    width: 80%;
  }

  .main-nav a {
    color: rgba(255,255,255,.9);
    font-size: 18px;
    padding: 14px 24px;
    display: block;
    text-align: center;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }

  .main-nav a.active {
    color: #F2C873;
  }

  .main-nav a.active::after {
    display: none;
  }

  .main-nav a:hover {
    background: rgba(255,255,255,.06);
    color: #F2C873;
  }

  .category-hero {
    min-height: auto;
    padding: 110px 0 56px;
  }

  .category-hero h1 {
    font-size: 24px;
  }

  .category-hero .hero-desc {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
  }

  .hero-stats .stat-item {
    flex: 1;
    min-width: 120px;
    padding: 14px 10px;
  }

  .hero-stats .stat-num {
    font-size: 22px;
  }

  .section-title {
    font-size: 21px;
  }

  .section-subtitle {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .benefit-card {
    padding: 24px 20px;
  }

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

  .step-item {
    flex-direction: column;
    gap: 12px;
  }

  .step-num {
    width: 38px;
    height: 38px;
  }

  .faq-item summary {
    font-size: 15px;
    padding: 15px 16px;
  }

  .faq-answer {
    padding: 0 16px 16px 48px;
    font-size: 13.5px;
  }

  .cta-banner {
    padding: 48px 0;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .cta-text h2 {
    font-size: 22px;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

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