/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --color-primary: #1668A8;
  --color-primary-dark: #0F4C7A;
  --color-primary-light: #EAF2F9;
  --color-accent: #D9A13B;
  --color-accent-dark: #B9832A;
  --color-bg: #F4F7FA;
  --color-surface: #FFFFFF;
  --color-border: #D7E2EB;
  --color-text: #21303C;
  --color-text-secondary: #64788A;
  --color-success: #2E8B57;
  --color-danger: #C0392B;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --space-section: 80px;
  --space-section-mobile: 48px;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(22, 59, 84, 0.06);
  --shadow-hover: 0 12px 32px rgba(22, 59, 84, 0.10);
}
/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; border: none; outline: none; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--color-primary-light); }
/* ========== 通用按钮 ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 24px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; letter-spacing: .02em; cursor: pointer;
  transition: all .22s ease; border: 1px solid transparent; line-height: 1;
}
.btn-primary {
  background: var(--color-accent); color: #fff; border-color: var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(217, 161, 59, .28); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent; color: var(--color-primary); border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.btn-white-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-white-outline:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-lg { min-height: 50px; padding: 0 36px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:focus-visible { outline: 3px solid rgba(22,104,168,.35); outline-offset: 2px; }
/* ========== Logo ========== */
.logo {
  display: inline-flex; align-items: center; font-size: 22px; font-weight: 800;
  color: var(--color-primary-dark); letter-spacing: .01em;
}
.logo-dot { color: var(--color-accent); margin-left: 2px; font-weight: 800; }
.logo-badge {
  display: inline-block; background: var(--color-primary-light); color: var(--color-primary);
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: var(--radius-pill);
  margin-left: 8px; letter-spacing: .05em;
}
/* ========== Header / Nav ========== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow .3s;
}
.site-header.scrolled { background: #fff; box-shadow: 0 4px 20px rgba(22,59,84,.06); }
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.main-nav { display: flex; align-items: center; gap: 28px; }
.nav-links { display: flex; gap: 24px; }
.nav-links a {
  font-size: 15px; font-weight: 500; color: var(--color-text);
  position: relative; padding: 4px 2px;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px;
  background: var(--color-accent); transform: scaleX(0); transform-origin: left;
  transition: transform .25s;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-links a:hover::after { transform: scaleX(.4); }
.nav-links a.active { color: var(--color-primary); font-weight: 700; }
.nav-links a.active::after { transform: scaleX(1); background: var(--color-primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; font-size: 24px; color: var(--color-text); cursor: pointer; padding: 4px 8px; border-radius: 6px; }
.nav-toggle:hover { background: var(--color-primary-light); color: var(--color-primary); }
/* ========== 倒计时条 ========== */
.countdown-bar {
  background: var(--color-primary-light);
  border-top: 2px solid var(--color-accent);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 0;
  font-size: 14px;
}
.countdown-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
}
.countdown-label { color: var(--color-text); font-weight: 500; white-space: nowrap; }
.countdown-label strong { color: var(--color-primary); font-weight: 700; }
.countdown-timer { display: flex; align-items: center; gap: 4px; font-size: 14px; color: var(--color-text-secondary); }
.timer-block {
  background: #fff; border-radius: 6px; padding: 4px 8px; min-width: 32px; text-align: center;
  font-size: 18px; font-weight: 800; color: var(--color-accent-dark);
  box-shadow: 0 1px 4px rgba(22,59,84,.08); font-variant-numeric: tabular-nums;
}
.timer-unit { margin: 0 2px; font-size: 13px; color: var(--color-text-secondary); font-weight: 500; }
/* ========== Hero ========== */
.hero {
  position: relative; background: var(--color-primary-light);
  padding: 96px 0 80px; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(234,242,249,.96) 40%, rgba(234,242,249,.75) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  z-index: 0;
}
.hero::after {
  content: ""; position: absolute; right: -160px; top: 40px; width: 420px; height: 420px;
  border-radius: 50%; background: rgba(22,104,168,.06); z-index: 0;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: center; }
.hero-copy h1 {
  font-size: 36px; line-height: 1.25; font-weight: 800; color: var(--color-text);
  margin-bottom: 16px;
}
.hero-copy h1 .highlight { color: var(--color-primary); }
.hero-copy h1 .gold { color: var(--color-accent-dark); }
.hero-copy p { font-size: 16px; line-height: 1.8; color: var(--color-text-secondary); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust {
  display: grid; grid-template-columns: repeat(4, auto); gap: 16px; justify-content: start;
}
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--color-text); }
.trust-item .trust-icon {
  width: 32px; height: 32px; border-radius: 50%; background: #fff;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary); box-shadow: var(--shadow-card);
}
.hero-visual {
  background: linear-gradient(145deg, rgba(255,255,255,.95), rgba(234,242,249,.6));
  border-radius: var(--radius-card); border: 1px solid rgba(255,255,255,.6);
  box-shadow: var(--shadow-hover); padding: 24px; text-align: center;
}
.hero-visual img { border-radius: 8px; width: 100%; height: auto; }
.hero-visual-caption { font-size: 13px; color: var(--color-text-secondary); margin-top: 12px; }
/* ========== 通用标题 ========== */
.section-title { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-title .eyebrow {
  display: inline-block; background: var(--color-primary-light); color: var(--color-primary);
  font-size: 13px; font-weight: 700; padding: 4px 16px; border-radius: var(--radius-pill);
  margin-bottom: 12px; letter-spacing: .04em;
}
.section-title h2 { font-size: 28px; font-weight: 800; line-height: 1.3; color: var(--color-text); margin-bottom: 12px; }
.section-title p { font-size: 15px; line-height: 1.7; color: var(--color-text-secondary); }
/* ========== 活动卖点 ========== */
.features-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 1000px; margin: 0 auto;
}
.feature-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); padding: 32px 28px; box-shadow: var(--shadow-card);
  transition: all .3s ease; position: relative;
}
.feature-card:hover { box-shadow: var(--shadow-hover); border-color: var(--color-primary); transform: translateY(-4px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 10px; background: var(--color-primary-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
  color: var(--color-primary); transition: background .3s;
}
.feature-card:hover .feature-icon { background: var(--color-accent); color: #fff; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--color-text); }
.feature-card p { font-size: 14px; line-height: 1.7; color: var(--color-text-secondary); margin-bottom: 12px; }
.feature-link { font-size: 13px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 4px; }
.feature-link::after { content: "→"; transition: transform .2s; }
.feature-link:hover::after { transform: translateX(3px); }
/* ========== 亮点图墙 ========== */
.gallery-grid {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 24px;
}
.gallery-item { position: relative; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); background: #fff; }
.gallery-item:first-child { grid-row: span 2; }
.gallery-media { position: relative; overflow: hidden; aspect-ratio: 4/3; }
.gallery-item:first-child .gallery-media { aspect-ratio: auto; height: 100%; min-height: 320px; }
.gallery-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.gallery-item:hover .gallery-media img { transform: scale(1.04); }
.gallery-overlay {
  position: absolute; inset: 0; background: linear-gradient(to top, rgba(22,59,84,.65) 0%, rgba(22,59,84,.05) 60%);
  display: flex; align-items: flex-end; padding: 20px; opacity: .92; transition: opacity .3s;
}
.gallery-overlay h3 { color: #fff; font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.gallery-overlay p { color: rgba(255,255,255,.85); font-size: 13px; line-height: 1.5; }
/* ========== CTA 报名区 ========== */
.cta-section {
  background: var(--color-primary-dark); position: relative; overflow: hidden;
}
.cta-section::before {
  content: ""; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: .15;
}
.cta-wrap {
  position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 56px;
  align-items: center;
}
.cta-copy h2 { font-size: 28px; font-weight: 800; color: #fff; line-height: 1.35; margin-bottom: 12px; }
.cta-copy h2 .gold { color: var(--color-accent); }
.cta-copy p { color: rgba(255,255,255,.85); font-size: 15px; line-height: 1.75; margin-bottom: 20px; }
.cta-points { display: grid; gap: 10px; margin-top: 24px; }
.cta-point { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.9); font-size: 14px; }
.cta-point .check {
  width: 20px; height: 20px; border-radius: 50%; background: var(--color-accent);
  display: inline-flex; align-items: center; justify-content: center; font-size: 11px; color: #fff; font-weight: 700;
}
.cta-form {
  background: #fff; border-radius: var(--radius-card); padding: 36px 32px;
  box-shadow: 0 16px 48px rgba(0,0,0,.18);
}
.cta-form h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; color: var(--color-text); }
.cta-form .form-sub { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--color-text); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; height: 44px; border: 1px solid var(--color-border);
  border-radius: var(--radius-btn); padding: 0 14px; font-size: 14px; background: #fff;
  transition: all .2s; color: var(--color-text);
}
.form-group textarea { height: 84px; padding-top: 10px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(22,104,168,.15);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: #A9B8C6; }
.form-note { font-size: 12px; color: var(--color-text-secondary); line-height: 1.5; margin-top: 14px; }
/* ========== FAQ ========== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-list { border-top: 1px solid var(--color-border); }
.faq-item { border-bottom: 1px solid var(--color-border); background: #fff; }
.faq-item.active { background: var(--color-primary-light); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 20px; font-size: 15px; font-weight: 600; color: var(--color-text);
  cursor: pointer; transition: background .2s; background: none; text-align: left; width: 100%;
}
.faq-question:hover { background: var(--color-primary-light); }
.faq-icon {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: var(--color-primary-light); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700;
  transition: transform .3s;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--color-accent); color: #fff; }
.faq-answer { display: none; padding: 0 20px 20px; font-size: 14px; line-height: 1.75; color: var(--color-text-secondary); max-width: 92%; }
.faq-item.active .faq-answer { display: block; }
/* ========== 最新信息列表 ========== */
.news-section-bg { background: var(--color-surface); }
.news-list { display: grid; gap: 18px; max-width: 960px; margin: 0 auto; }
.news-item {
  display: grid; grid-template-columns: 220px 1fr; gap: 20px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); padding: 14px; box-shadow: var(--shadow-card);
  transition: all .25s;
}
.news-item:hover { box-shadow: var(--shadow-hover); border-color: var(--color-primary); transform: translateY(-2px); }
.news-thumb { border-radius: 8px; overflow: hidden; aspect-ratio: 16/10; background: var(--color-primary-light); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.news-item:hover .news-thumb img { transform: scale(1.03); }
.news-body { display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 4px 8px 4px 0; }
.news-body h3 { font-size: 17px; font-weight: 700; color: var(--color-text); line-height: 1.4; }
.news-body p { font-size: 14px; line-height: 1.6; color: var(--color-text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.badge {
  display: inline-block; background: var(--color-primary-light); color: var(--color-primary);
  font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: var(--radius-pill);
}
.badge-gold { background: var(--color-accent); color: #fff; }
.news-date { font-size: 13px; color: var(--color-text-secondary); }
.news-more { font-size: 13px; font-weight: 600; color: var(--color-primary); margin-left: auto; display: inline-flex; align-items: center; gap: 4px; }
.news-more::after { content: "→"; transition: transform .2s; }
.news-item:hover .news-more::after { transform: translateX(3px); }
.news-empty {
  text-align: center; padding: 60px 20px; background: var(--color-surface);
  border: 1px dashed var(--color-border); border-radius: var(--radius-card);
  color: var(--color-text-secondary); font-size: 15px;
}
.news-empty-icon { font-size: 36px; margin-bottom: 12px; display: block; }
/* ========== Footer ========== */
.site-footer { background: #123A5C; color: rgba(255,255,255,.72); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .logo { color: #fff; font-size: 22px; }
.footer-brand .logo-dot { color: var(--color-accent); }
.footer-brand p { margin-top: 14px; font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.65); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { color: rgba(255,255,255,.65); font-size: 14px; transition: color .2s; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); padding: 20px 0;
  font-size: 13px; color: rgba(255,255,255,.48); text-align: center;
}
/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { max-width: 600px; margin: 0 auto; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item:first-child { grid-row: span 1; }
  .gallery-item:first-child .gallery-media { aspect-ratio: 4/3; min-height: 0; }
  .cta-wrap { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  :root { --space-section: var(--space-section-mobile); }
  .nav-links {
    display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--color-border);
    padding: 16px 24px; gap: 4px; box-shadow: 0 12px 24px rgba(22,59,84,.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 4px; font-size: 16px; border-bottom: 1px solid #f0f4f7; }
  .nav-cta .btn-outline { display: none; }
  .nav-toggle { display: block; }
  .countdown-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
  .countdown-label { font-size: 13px; }
  .countdown-timer { flex-wrap: wrap; }
  .timer-block { font-size: 15px; padding: 3px 6px; }
  .hero { padding: 60px 0; }
  .hero-copy h1 { font-size: 26px; }
  .hero-copy p { font-size: 15px; }
  .hero-trust { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; gap: 16px; }
  .gallery-item:first-child .gallery-media { aspect-ratio: 4/3; }
  .cta-wrap { grid-template-columns: 1fr; }
  .cta-form { padding: 24px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .news-item { grid-template-columns: 1fr; }
  .news-thumb { aspect-ratio: 16/9; }
  .section-title h2 { font-size: 22px; }
  .section-title p { font-size: 14px; }
  .navbar .container { height: 60px; }
  .nav-links { top: 60px; }
}
@media (max-width: 520px) {
  .hero-trust { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .countdown-timer { font-size: 12px; }
  .timer-block { min-width: 28px; font-size: 14px; }
}

/* roulang page: article */
:root {
  --color-primary: #1668A8;
  --color-primary-dark: #0F4C7A;
  --color-primary-light: #EAF2F9;
  --color-accent: #D9A13B;
  --color-accent-dark: #B9832A;
  --color-bg: #F4F7FA;
  --color-surface: #FFFFFF;
  --color-border: #D7E2EB;
  --color-text: #21303C;
  --color-text-secondary: #64788A;
  --color-success: #2E8B57;
  --color-danger: #C0392B;
  --color-footer: #123A5C;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --space-section: 80px;
  --space-section-mobile: 48px;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(22, 59, 84, 0.06);
  --shadow-hover: 0 12px 32px rgba(22, 59, 84, 0.10);
  --transition-base: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition-base); }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: var(--transition-base);
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1;
}
.btn:focus-visible { outline: 3px solid rgba(22, 104, 168, 0.3); outline-offset: 2px; }
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 2px 6px rgba(217, 161, 59, 0.25); }
.btn-primary:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(217, 161, 59, 0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary-light); color: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-outline:active { background: #dce8f2; }
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition-base);
}
.site-header.scrolled { background: #fff; box-shadow: 0 2px 16px rgba(22, 59, 84, 0.08); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-size: 20px; font-weight: 700; color: var(--color-primary-dark); letter-spacing: 0.5px; display: inline-flex; align-items: center; gap: 2px; }
.logo .logo-dot { color: var(--color-accent); font-weight: 700; }
.main-nav { display: flex; align-items: center; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--color-text); padding: 8px 0; position: relative; }
.nav-links a:hover { color: var(--color-primary); }
.nav-links a.active { color: var(--color-primary); font-weight: 600; }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
}
.nav-cta { display: flex; align-items: center; gap: 12px; margin-left: 24px; }
.nav-cta .btn { height: 40px; padding: 0 20px; font-size: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 6px; background: var(--color-primary-light); color: var(--color-primary); font-size: 18px; align-items: center; justify-content: center; }
.nav-toggle:hover { background: #dce8f2; }
.nav-toggle.active span { transform: rotate(90deg); display: block; }
.main {
  padding-top: 68px;
}
.article-hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #f7fafc 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0 48px;
}
.breadcrumb { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: #b7c8d6; }
.breadcrumb .current { color: var(--color-text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 280px; }
.article-top { max-width: 860px; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  letter-spacing: 0.3px;
  margin-bottom: 16px;
}
.article-top h1 {
  font-size: 32px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: var(--color-text-secondary);
  align-items: center;
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item svg { width: 14px; height: 14px; }
.article-main { padding: 56px 0 64px; }
.article-layout { max-width: 860px; margin: 0 auto; }
.article-content-wrap {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px 56px;
  border: 1px solid var(--color-border);
}
.article-cover { border-radius: 8px; overflow: hidden; margin-bottom: 32px; }
.article-cover img { width: 100%; height: auto; object-fit: cover; border-radius: 8px; }
.article-content { font-size: 16px; line-height: 1.85; color: var(--color-text); }
.article-content p { margin-bottom: 16px; }
.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--color-primary);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 24px 0 12px;
}
.article-content ul, .article-content ol { margin: 0 0 16px 20px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; padding-left: 4px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; padding-left: 4px; }
.article-content blockquote {
  background: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  padding: 16px 20px;
  border-radius: 0 6px 6px 0;
  margin: 20px 0;
  font-size: 15px;
  color: var(--color-text);
}
.article-content blockquote p { margin-bottom: 0; }
.article-content img { border-radius: 8px; margin: 20px auto; }
.article-content .img-caption { font-size: 13px; color: var(--color-text-secondary); text-align: center; margin-top: -4px; margin-bottom: 20px; }
.article-content a { color: var(--color-primary); border-bottom: 1px solid rgba(22, 104, 168, 0.3); }
.article-content a:hover { color: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.article-empty {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  padding: 80px 40px;
  text-align: center;
}
.article-empty .empty-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 28px;
}
.article-empty h2 { font-size: 22px; font-weight: 600; color: var(--color-text); margin-bottom: 12px; }
.article-empty p { color: var(--color-text-secondary); font-size: 15px; margin-bottom: 24px; }
.rel-section {
  background: var(--color-bg);
  padding: 64px 0 80px;
  border-top: 1px solid var(--color-border);
}
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; gap: 16px; }
.section-head h2 { font-size: 26px; font-weight: 700; color: var(--color-text); line-height: 1.3; }
.section-head .section-sub { font-size: 14px; color: var(--color-text-secondary); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
  display: block;
}
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--color-primary); }
.related-card .card-media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--color-primary-light); }
.related-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.related-card:hover .card-media img { transform: scale(1.04); }
.related-card .card-body { padding: 20px 20px 24px; }
.related-card .card-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}
.related-card h3 { font-size: 16px; font-weight: 600; color: var(--color-text); line-height: 1.45; margin-bottom: 10px; }
.related-card h3:hover { color: var(--color-primary); }
.related-card .card-excerpt { font-size: 13px; color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-meta { font-size: 12px; color: var(--color-text-secondary); display: flex; align-items: center; gap: 12px; }
.back-bar { text-align: center; padding: 40px 0 56px; }
.back-bar .btn { min-width: 160px; }
.site-footer {
  background: var(--color-footer);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo { color: #fff; font-size: 22px; margin-bottom: 16px; }
.footer-brand .logo .logo-dot { color: var(--color-accent); }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.7); margin-top: 12px; max-width: 320px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255, 255, 255, 0.7); font-size: 14px; }
.footer-col ul li a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(22, 104, 168, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-base);
  z-index: 999;
}
.scroll-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: var(--color-primary-dark); }
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .nav-cta .btn:first-child { padding: 0 16px; }
  .article-content-wrap { padding: 40px; }
  .related-grid { gap: 16px; }
}
@media (max-width: 768px) {
  .site-header { height: 60px; }
  .nav-wrap { height: 60px; }
  .main { padding-top: 60px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(22, 59, 84, 0.08);
    padding: 16px 24px 20px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    flex-direction: column;
    align-items: flex-start;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links { flex-direction: column; gap: 0; width: 100%; }
  .nav-links li { width: 100%; border-bottom: 1px solid #f0f4f8; }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a { display: block; padding: 12px 0; font-size: 16px; }
  .nav-links a.active::after { display: none; }
  .nav-links a.active { color: var(--color-primary); font-weight: 600; }
  .nav-cta { margin-left: 0; }
  .nav-cta .btn { display: inline-flex; font-size: 13px; padding: 0 14px; }
  .article-hero { padding: 48px 0 36px; }
  .article-top h1 { font-size: 26px; }
  .article-meta { gap: 12px; flex-wrap: wrap; }
  .article-main { padding: 32px 0 48px; }
  .article-content-wrap { padding: 24px 20px; }
  .article-content { font-size: 15px; }
  .article-content h2 { font-size: 20px; }
  .article-content h3 { font-size: 17px; }
  .rel-section { padding: 48px 0 56px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-card { display: flex; align-items: stretch; }
  .related-card .card-media { width: 120px; aspect-ratio: auto; min-height: 100px; flex-shrink: 0; }
  .related-card .card-body { padding: 14px 16px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
  .related-card h3 { font-size: 15px; }
  .related-card .card-excerpt { display: none; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-head h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { font-size: 12px; }
  .scroll-top { bottom: 20px; right: 20px; }
  .breadcrumb .current { max-width: 140px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-cta .btn { padding: 0 12px; font-size: 13px; height: 36px; }
  .article-top h1 { font-size: 24px; }
  .related-card .card-media { width: 100px; min-height: 80px; }
  .article-content-wrap { padding: 20px 16px; }
  .article-empty { padding: 60px 16px; }
  .btn { padding: 0 20px; font-size: 14px; }
}

/* roulang page: category1 */
/* ========== Design Tokens ========== */
        :root {
            --color-primary: #1668A8;
            --color-primary-dark: #0F4C7A;
            --color-primary-light: #EAF2F9;
            --color-accent: #D9A13B;
            --color-accent-dark: #B9832A;
            --color-bg: #F4F7FA;
            --color-surface: #FFFFFF;
            --color-border: #D7E2EB;
            --color-text: #21303C;
            --color-text-secondary: #64788A;
            --color-success: #2E8B57;
            --color-danger: #C0392B;
            --color-footer: #123A5C;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --space-section: 80px;
            --space-section-mobile: 48px;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 10px rgba(22, 59, 84, 0.06);
            --shadow-hover: 0 12px 32px rgba(22, 59, 84, 0.10);
            --shadow-accent: 0 6px 20px rgba(217, 161, 59, 0.28);
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: 14px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-alt {
            background: var(--color-surface);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 18px rgba(22, 59, 84, 0.08);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .logo {
            font-size: 21px;
            font-weight: 700;
            color: var(--color-primary-dark);
            display: flex;
            align-items: center;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo-dot {
            color: var(--color-accent);
            font-weight: 700;
        }
        .main-nav .nav-links {
            display: flex;
            gap: 30px;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color .2s ease, border-color .2s ease;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-primary);
        }
        .nav-links a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all .25s ease;
            white-space: nowrap;
            min-width: 100px;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(217, 161, 59, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-accent);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary);
        }
        .btn-dark {
            background: var(--color-primary-dark);
            color: #fff;
        }
        .btn-dark:hover {
            background: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(22, 104, 168, 0.25);
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--color-primary-dark);
            padding: 6px 10px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            line-height: 1;
            transition: all .2s ease;
        }
        .nav-toggle:hover {
            background: var(--color-primary-light);
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(100deg, #EAF2F9 0%, #F7FAFC 50%, #EEF4F9 100%);
            padding: 64px 0 56px;
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(217, 161, 59, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb span {
            margin: 0 6px;
        }
        .page-hero h1 {
            font-size: 34px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 14px;
            max-width: 640px;
        }
        .page-hero .hero-sub {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        /* ========== Section Header ========== */
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head .tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ========== Prep Cards ========== */
        .prep-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .prep-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
            position: relative;
            overflow: hidden;
        }
        .prep-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: var(--color-accent);
            opacity: 0;
            transition: opacity .25s ease;
        }
        .prep-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }
        .prep-card:hover::before {
            opacity: 1;
        }
        .prep-icon {
            width: 52px;
            height: 52px;
            background: var(--color-primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--color-primary);
            margin-bottom: 20px;
        }
        .prep-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .prep-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== Steps Timeline ========== */
        .steps-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .steps-timeline {
            position: relative;
            max-width: 780px;
            margin: 0 auto;
            padding-left: 72px;
        }
        .steps-timeline::before {
            content: "";
            position: absolute;
            left: 26px;
            top: 10px;
            bottom: 10px;
            width: 3px;
            background: linear-gradient(to bottom, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: 3px;
        }
        .step-item {
            position: relative;
            padding-bottom: 32px;
        }
        .step-item:last-child {
            padding-bottom: 8px;
        }
        .step-marker {
            position: absolute;
            left: -72px;
            top: 0;
            width: 52px;
            height: 52px;
            background: var(--color-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 6px var(--color-primary-light);
        }
        .step-content {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 28px;
            transition: box-shadow .25s ease, border-color .25s ease;
        }
        .step-content:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--color-primary);
        }
        .step-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary-dark);
            margin-bottom: 8px;
        }
        .step-content p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* ========== Info Image / Text ========== */
        .info-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .info-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            position: relative;
        }
        .info-image img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .info-image:hover img {
            transform: scale(1.03);
        }
        .info-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.35;
            margin-bottom: 12px;
        }
        .info-content > p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .info-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .info-list .li-icon {
            width: 30px;
            height: 30px;
            background: var(--color-primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 15px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .info-list .li-text h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }
        .info-list .li-text p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== Notice Box ========== */
        .notice-section {
            background: #FBF6EC;
            border-top: 1px solid #EBE0C8;
            border-bottom: 1px solid #EBE0C8;
        }
        .notice-wrap {
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }
        .notice-wrap .notice-icon {
            font-size: 40px;
            margin-bottom: 16px;
            display: block;
        }
        .notice-wrap h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary-dark);
            margin-bottom: 14px;
        }
        .notice-wrap p {
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.9;
            max-width: 720px;
            margin: 0 auto 12px;
        }
        .notice-tips {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
            text-align: left;
        }
        .notice-tip {
            background: #fff;
            border: 1px solid #EBE0C8;
            border-radius: var(--radius-card);
            padding: 22px 24px;
            transition: box-shadow .25s ease, transform .25s ease;
        }
        .notice-tip:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .notice-tip .tip-num {
            font-size: 14px;
            color: var(--color-accent);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }
        .notice-tip h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .notice-tip p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            transition: background .25s ease;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-item.open {
            background: var(--color-primary-light);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            min-height: 56px;
            transition: color .2s ease;
        }
        .faq-q:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            line-height: 1;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform .3s ease, background .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-a-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background: var(--color-footer);
            padding: 72px 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
        }
        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            color: #fff;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .cta-inner .btn-primary {
            font-size: 16px;
            height: 48px;
            padding: 0 34px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-footer);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-col ul a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 22px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .main-nav .nav-links {
                gap: 20px;
            }
            .nav-wrap {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: var(--space-section-mobile);
            }
            .nav-wrap {
                height: 60px;
            }
            .main-nav {
                position: fixed;
                top: 61px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 12px 24px rgba(22, 59, 84, 0.08);
                transform: translateY(-120%);
                transition: transform .3s ease;
                z-index: 99;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav .nav-links {
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
            }
            .main-nav .nav-links a {
                display: block;
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--color-border);
            }
            .main-nav .nav-links a.active {
                border-bottom: 1px solid var(--color-primary);
                color: var(--color-primary);
            }
            .nav-cta {
                gap: 8px;
            }
            .nav-cta .btn {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta .btn:first-child {
                display: inline-flex;
                height: 38px;
                min-width: 80px;
                padding: 0 14px;
                font-size: 13px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .prep-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .info-row {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .info-image img {
                height: 230px;
            }
            .notice-tips {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .steps-timeline {
                padding-left: 56px;
            }
            .step-marker {
                left: -56px;
                width: 42px;
                height: 42px;
                font-size: 15px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-head h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-actions .btn {
                min-width: 0;
                flex: 1;
                padding: 0 16px;
            }
            .step-content {
                padding: 16px 18px;
            }
            .page-hero {
                padding: 44px 0 40px;
            }
            .nav-cta .btn:first-child {
                min-width: 70px;
                padding: 0 10px;
                font-size: 12px;
            }
        }

/* roulang page: category2 */
:root {
  --color-primary: #1668A8;
  --color-primary-dark: #0F4C7A;
  --color-primary-light: #EAF2F9;
  --color-accent: #D9A13B;
  --color-accent-dark: #B9832A;
  --color-bg: #F4F7FA;
  --color-surface: #FFFFFF;
  --color-border: #D7E2EB;
  --color-text: #21303C;
  --color-text-secondary: #64788A;
  --color-success: #2E8B57;
  --color-danger: #C0392B;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --space-section: 80px;
  --space-section-mobile: 48px;
  --radius-card: 12px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(22, 59, 84, 0.06);
  --shadow-hover: 0 12px 32px rgba(22, 59, 84, 0.10);
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color .2s ease;
}
a:hover {
  color: var(--color-primary-dark);
}
img {
  max-width: 100%;
  display: block;
}
ul,
ol {
  list-style: none;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
}

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

.section {
  padding: var(--space-section) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-section-mobile) 0;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  letter-spacing: .02em;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(22, 104, 168, .3);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(217, 161, 59, .25);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(217, 161, 59, .32);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(217, 161, 59, .25);
}
.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}
.btn-lg {
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: #fff;
  box-shadow: 0 4px 18px rgba(22, 59, 84, .06);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: .02em;
  display: inline-flex;
  align-items: baseline;
  flex-shrink: 0;
}
.logo-dot {
  color: var(--color-accent);
  font-size: 16px;
  font-weight: 700;
  margin-left: 2px;
}
.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links li a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 8px 2px;
  transition: color .2s;
}
.nav-links li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width .25s ease;
}
.nav-links li a:hover {
  color: var(--color-primary);
}
.nav-links li a:hover::after {
  width: 100%;
}
.nav-links li a.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-links li a.active::after {
  width: 100%;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-cta .btn {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  width: 40px;
  height: 40px;
  font-size: 18px;
  color: var(--color-text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.nav-toggle:hover {
  background: var(--color-primary-light);
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 24px;
  }
  .nav-cta .btn-outline {
    display: none;
  }
}
@media (max-width: 768px) {
  .nav-wrap {
    height: 60px;
    gap: 12px;
  }
  .logic-logo {
    font-size: 19px;
  }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 24px rgba(22,59,84,.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all .3s ease;
    padding: 16px 24px;
    z-index: 99;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links li a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(215,226,235,.6);
  }
  .nav-links li a::after {
    display: none;
  }
  .nav-cta {
    gap: 8px;
  }
  .nav-cta .btn {
    height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

.page-hero {
  background: linear-gradient(135deg, rgba(10,52,84,.92), rgba(22,104,168,.82)), url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color: #fff;
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -30px;
  width: 260px;
  height: 260px;
  background: rgba(255,255,255,.05);
  border-radius: 50%;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: rgba(255,255,255,.85);
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb .sep {
  margin: 0 4px;
  color: rgba(255,255,255,.4);
}
.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.page-hero-content .tag-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 13px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: .04em;
}
.page-hero-content h1 {
  font-size: 36px;
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: .02em;
}
.page-hero-content h1 .hero-white {
  color: var(--color-accent);
}
.page-hero-content p {
  font-size: 16px;
  color: rgba(255,255,255,.88);
  line-height: 1.7;
  max-width: 620px;
}
@media (max-width: 768px) {
  .page-hero {
    padding: 48px 0 40px;
  }
  .page-hero-content h1 {
    font-size: 26px;
  }
  .page-hero-content p {
    font-size: 14px;
  }
  .breadcrumb {
    font-size: 12px;
  }
}

.intro-section {
  background: var(--color-surface);
}
.intro-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: center;
}
.intro-media {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.intro-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform .4s ease;
}
.intro-media:hover img {
  transform: scale(1.03);
}
.intro-media .media-note {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(255,255,255,.92);
  color: var(--color-text);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
}
.intro-content .eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  letter-spacing: .05em;
}
.intro-content h2 {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}
.intro-content p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}
.intro-points {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.intro-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}
.intro-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .intro-media img {
    height: 220px;
  }
  .intro-points {
    grid-template-columns: 1fr;
  }
  .intro-content h2 {
    font-size: 22px;
  }
}

.access-section {
  background: var(--color-bg);
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  letter-spacing: .05em;
}
.section-head h2 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}
.section-head p {
  color: var(--color-text-secondary);
  font-size: 15px;
}
@media (max-width: 768px) {
  .section-head h2 {
    font-size: 23px;
  }
  .section-head p {
    font-size: 14px;
  }
  .section-head {
    margin-bottom: 28px;
  }
}

.access-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  align-items: stretch;
}
.access-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
}
.access-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(22,104,168,.3);
}
.access-card .card-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 18px;
}
.access-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}
.access-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.75;
}
.access-card .card-list {
  margin-top: 14px;
}
.access-card .card-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.6;
}
.access-card .card-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}
.access-card-main {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
}
.access-card-main .card-icon {
  background: rgba(255,255,255,.14);
  color: var(--color-accent);
}
.access-card-main h3 {
  color: #fff;
}
.access-card-main p,
.access-card-main .card-list li {
  color: rgba(255,255,255,.82);
}
.access-card-main .card-list li::before {
  color: var(--color-accent);
}
.access-card-main .card-tip {
  margin-top: auto;
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  border-top: 1px solid rgba(255,255,255,.12);
}
@media (max-width: 900px) {
  .access-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 520px) {
  .access-card {
    padding: 20px;
  }
}

.check-section {
  background: var(--color-surface);
}
.check-wrap {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: center;
}
.check-content h2 {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 14px;
}
.check-content p {
  color: var(--color-text-secondary);
  font-size: 15px;
  margin-bottom: 8px;
  line-height: 1.8;
}
.check-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.check-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px;
  transition: all .25s;
}
.check-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
}
.check-item .check-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}
.check-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.check-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.check-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.check-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
@media (max-width: 900px) {
  .check-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .check-list {
    grid-template-columns: 1fr;
  }
  .check-media img {
    height: 240px;
  }
  .check-content h2 {
    font-size: 22px;
  }
}

.flow-section {
  background: var(--color-primary-light);
  position: relative;
  overflow: hidden;
}
.flow-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
}
.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 10px 0;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  padding-left: 76px;
  margin-bottom: 24px;
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-item .tl-dot {
  position: absolute;
  left: 20px;
  top: 22px;
  width: 16px;
  height: 16px;
  border: 3px solid var(--color-surface);
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(217,161,59,.3);
}
.tl-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .25s;
}
.tl-card:hover {
  box-shadow: var(--shadow-hover);
}
.tl-card .tl-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tl-card .tl-title .step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  height: 24px;
  padding: 0 8px;
  border-radius: 6px;
}
.tl-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .timeline {
    padding-left: 0;
  }
  .timeline::before {
    left: 14px;
  }
  .timeline-item {
    padding-left: 48px;
  }
  .timeline-item .tl-dot {
    left: 8px;
    top: 20px;
  }
  .tl-card {
    padding: 16px;
  }
}

.faq-section {
  background: var(--color-bg);
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .25s;
}
.faq-item:hover {
  box-shadow: var(--shadow-card);
}
.faq-item.active {
  border-color: rgba(22,104,168,.35);
  box-shadow: var(--shadow-card);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: none;
  border: none;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: background .2s;
}
.faq-q:hover {
  background: var(--color-primary-light);
}
.faq-icon {
  position: relative;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-primary-light);
  transition: all .3s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
  transform: translate(-50%, -50%);
  border-radius: 2px;
  transition: all .3s ease;
}
.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-item.active .faq-icon {
  background: var(--color-accent);
}
.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after {
  background: #fff;
}
.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner {
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}
@media (max-width: 520px) {
  .faq-q {
    padding: 16px;
    font-size: 14px;
  }
  .faq-a-inner {
    padding: 12px 16px 16px;
    font-size: 13px;
  }
}

.cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #123A5C 60%, #1668A8 100%);
  padding: 70px 0;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(217,161,59,.08);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-inner h2 .cta-gold {
  color: var(--color-accent);
}
.cta-inner p {
  font-size: 15px;
  color: rgba(255,255,255,.82);
  margin-bottom: 30px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-btns .btn-primary {
  min-width: 170px;
}
.cta-btns .btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.cta-btns .btn-ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.8);
}
@media (max-width: 768px) {
  .cta-section {
    padding: 46px 0;
  }
  .cta-inner h2 {
    font-size: 22px;
  }
  .cta-inner p {
    font-size: 14px;
  }
}

.site-footer {
  background: #123A5C;
  color: rgba(255,255,255,.75);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 2fr 2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo {
  color: #fff;
  font-size: 20px;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,.65);
  margin-top: 12px;
  max-width: 340px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 8px;
}
.footer-col ul li a {
  color: rgba(255,255,255,.68);
  font-size: 14px;
  transition: all .2s;
}
.footer-col ul li a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-brand {
    grid-column: auto;
  }
}

.image-placeholder {
  background: var(--color-primary-light);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--color-text-secondary);
  font-size: 14px;
  gap: 10px;
  padding: 24px;
}
.image-placeholder .ph-icon {
  font-size: 32px;
  opacity: .6;
}

/* roulang page: category3 */
:root{
  --color-primary:#1668A8;
  --color-primary-dark:#0F4C7A;
  --color-primary-light:#EAF2F9;
  --color-accent:#D9A13B;
  --color-accent-dark:#B9832A;
  --color-bg:#F4F7FA;
  --color-surface:#FFFFFF;
  --color-border:#D7E2EB;
  --color-text:#21303C;
  --color-text-secondary:#64788A;
  --color-success:#2E8B57;
  --color-danger:#C0392B;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  --container-max:1200px;
  --space-section:80px;
  --space-section-mobile:48px;
  --radius-card:12px;
  --radius-btn:6px;
  --radius-pill:999px;
  --shadow-card:0 2px 10px rgba(22,59,84,.06);
  --shadow-hover:0 12px 32px rgba(22,59,84,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-family);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.6;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--color-primary);text-decoration:none}
a:hover{color:var(--color-primary-dark)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible{outline:3px solid rgba(22,104,168,.35);outline-offset:2px;border-radius:4px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{
  background:var(--color-accent);color:#fff;box-shadow:0 4px 12px rgba(217,161,59,.25);
}
.btn-primary:hover{
  background:var(--color-accent-dark);color:#fff;transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(217,161,59,.35);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 8px rgba(217,161,59,.3)}
.btn-outline{
  background:transparent;border-color:var(--color-primary);color:var(--color-primary);
}
.btn-outline:hover{background:var(--color-primary-light);color:var(--color-primary-dark)}
.btn-outline:active{background:var(--color-primary-light);transform:translateY(0)}
.btn-lg{min-height:48px;padding:0 28px;font-size:16px}
.btn-xl{min-height:52px;padding:0 36px;font-size:17px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--color-border);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{background:#fff;box-shadow:0 4px 20px rgba(22,59,84,.08)}
.nav-wrap{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{
  font-size:20px;font-weight:700;color:var(--color-primary-dark);
  letter-spacing:.5px;white-space:nowrap;text-decoration:none;
}
.logo-dot{
  color:var(--color-accent);margin-left:2px;font-weight:700;
}
.main-nav .nav-links{
  display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0;
}
.nav-links a{
  font-size:15px;font-weight:500;color:var(--color-text);
  padding:8px 2px;border-bottom:2px solid transparent;
  transition:color .2s,border-color .2s;text-decoration:none;display:inline-block;
}
.nav-links a:hover{color:var(--color-primary);border-color:var(--color-primary)}
.nav-links a.active{color:var(--color-primary);border-color:var(--color-primary);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--color-border);
  border-radius:6px;padding:6px 10px;font-size:20px;cursor:pointer;
  color:var(--color-text);line-height:1;transition:background .2s,border-color .2s;
}
.nav-toggle:hover{background:var(--color-primary-light);border-color:var(--color-primary)}

/* Hero */
.page-hero{
  background:
    linear-gradient(135deg,rgba(234,242,249,.96),rgba(255,255,255,.90)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:72px 0 80px;
  border-bottom:1px solid var(--color-border);
}
.hero-inner{max-width:900px;text-align:center;margin:0 auto}
.hero-badge{
  display:inline-flex;padding:5px 16px;border-radius:var(--radius-pill);
  background:var(--color-primary-light);color:var(--color-primary);
  font-size:13px;font-weight:600;
}
.hero-inner h1{
  font-size:34px;color:var(--color-text);
  margin:18px 0 14px;line-height:1.25;letter-spacing:.5px;
}
.hero-subtitle{
  font-size:18px;color:var(--color-text-secondary);
  margin:0 0 30px;line-height:1.6;
}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* Sections */
.section{padding:var(--space-section) 0}
.section-head{max-width:720px;margin:0 auto 42px;text-align:center}
.section-tag{
  display:inline-block;padding:4px 14px;border-radius:var(--radius-pill);
  background:var(--color-primary-light);color:var(--color-primary);
  font-size:13px;font-weight:600;margin-bottom:12px;
}
.section-head h2{font-size:26px;color:var(--color-text);margin:0 0 10px}
.section-head p{color:var(--color-text-secondary);font-size:15px;margin:0;line-height:1.7}

/* Overview */
.overview-section{background:var(--color-surface)}
.overview-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
}
.overview-text .section-tag{margin-bottom:14px}
.overview-text h2{font-size:26px;color:var(--color-text);margin:0 0 16px}
.overview-text p{
  font-size:15px;line-height:1.8;color:var(--color-text-secondary);
  margin:0 0 14px;max-width:520px;
}
.overview-visual{position:relative;padding:0 10px}
.overview-img{
  width:100%;border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);border:1px solid var(--color-border);
}
.mini-card{
  position:absolute;width:230px;background:var(--color-surface);
  border-radius:10px;padding:18px 20px;box-shadow:var(--shadow-card);
  bottom:26px;left:-16px;border-left:4px solid var(--color-accent);
  transition:transform .25s,box-shadow .25s;
}
.mini-card.second{
  bottom:-18px;left:auto;right:-12px;border-left-color:var(--color-primary);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.mini-card strong{display:block;font-size:16px;color:var(--color-text);font-weight:700;margin-bottom:4px}
.mini-card span{font-size:13px;color:var(--color-text-secondary);line-height:1.6;display:block}

/* Timeline */
.timeline-section{background:var(--color-bg)}
.timeline{position:relative;max-width:960px;margin:0 auto}
.timeline-item{
  position:relative;padding-left:48px;margin-bottom:28px;
}
.timeline-num{
  position:absolute;left:0;top:2px;width:30px;height:30px;border-radius:50%;
  background:var(--color-primary);color:#fff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 4px var(--color-primary-light);
  z-index:1;
}
.timeline-item::before{
  content:'';position:absolute;left:14px;top:34px;bottom:-24px;
  width:2px;background:var(--color-border);
}
.timeline-item:last-child::before{display:none}
.timeline-content{
  background:var(--color-surface);border-radius:var(--radius-card);
  padding:22px 26px;box-shadow:var(--shadow-card);
  border:1px solid var(--color-border);
  transition:box-shadow .25s,transform .25s,border-color .25s;
}
.timeline-content:hover{
  box-shadow:var(--shadow-hover);border-color:var(--color-primary);transform:translateY(-2px);
}
.timeline-content h3{font-size:17px;color:var(--color-text);margin:0 0 8px}
.timeline-content p{font-size:14px;color:var(--color-text-secondary);margin:0;line-height:1.75}

/* Steps */
.steps-section{background:var(--color-surface)}
.steps-wrap{
  display:grid;grid-template-columns:.72fr .28fr;gap:48px;align-items:center;
}
.steps-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.step-card{
  background:var(--color-bg);border:1px solid var(--color-border);
  border-radius:var(--radius-card);padding:24px;
  transition:box-shadow .25s,transform .25s,border-color .25s;
}
.step-card.offset-step{transform:translateY(22px)}
.step-card.offset-step:hover{transform:translateY(18px)}
.step-card:hover{
  box-shadow:var(--shadow-hover);border-color:var(--color-primary);
  transform:translateY(-3px);
}
.step-num{
  display:inline-block;font-size:28px;font-weight:800;color:var(--color-accent);
  margin-bottom:10px;line-height:1;letter-spacing:1px;
}
.step-card h3{font-size:17px;color:var(--color-text);margin:0 0 8px}
.step-card p{font-size:14px;color:var(--color-text-secondary);margin:0;line-height:1.7}
.steps-img{position:relative}
.steps-img img{
  width:100%;border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);border:1px solid var(--color-border);
}

/* FAQ */
.faq-section{background:var(--color-primary-light)}
.faq-container{max-width:880px}
.faq-list{margin-top:8px}
.faq-item{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:10px;margin-bottom:16px;overflow:hidden;
  transition:box-shadow .25s,border-color .25s;
}
.faq-item.open{box-shadow:var(--shadow-card);border-color:var(--color-primary)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;user-select:none;
  background:transparent;border:none;width:100%;text-align:left;
  font-family:inherit;transition:background .2s;
}
.faq-question:hover{background:var(--color-primary-light)}
.faq-question h3{font-size:15px;color:var(--color-text);font-weight:600;margin:0;line-height:1.5}
.faq-icon{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:var(--color-primary-light);color:var(--color-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;transition:transform .28s,background .28s,color .28s;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);background:var(--color-accent);color:#fff;
}
.faq-answer{
  max-height:0;padding:0 24px;overflow:hidden;
  transition:max-height .32s ease,padding .32s ease;
  color:var(--color-text-secondary);font-size:14px;line-height:1.75;
}
.faq-item.open .faq-answer{max-height:320px;padding:0 24px 20px}

/* CTA */
.cta-section{
  background:
    linear-gradient(135deg,rgba(15,76,122,.95),rgba(22,104,168,.90)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding:80px 0;text-align:center;
}
.cta-inner{max-width:700px;margin:0 auto}
.cta-inner h2{color:#fff;font-size:28px;margin:0 0 16px;line-height:1.3}
.cta-inner p{
  color:rgba(255,255,255,.85);font-size:15px;line-height:1.8;
  margin:0 0 30px;
}
.cta-inner .btn-primary{box-shadow:0 8px 24px rgba(217,161,59,.4)}
.cta-inner .btn-primary:hover{box-shadow:0 10px 30px rgba(217,161,59,.5)}

/* Footer */
.site-footer{background:#123A5C;color:rgba(255,255,255,.8);padding:60px 0 0}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;
  padding-bottom:40px;
}
.footer-brand .logo{color:#fff;font-size:20px}
.footer-brand p{
  font-size:14px;color:rgba(255,255,255,.65);margin-top:14px;line-height:1.8;
  max-width:360px;
}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{
  color:rgba(255,255,255,.7);text-decoration:none;font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.15);
  padding:20px 0;text-align:center;font-size:13px;
  color:rgba(255,255,255,.5);
}

/* Responsive */
@media (max-width:1024px){
  .overview-grid{grid-template-columns:1fr;gap:44px}
  .overview-text p{max-width:100%}
  .overview-visual{max-width:560px}
  .steps-wrap{grid-template-columns:1fr;gap:36px}
  .steps-img{max-width:420px;margin:0 auto}
  .steps-img img{max-height:320px;object-fit:cover;width:100%}
  .nav-links{gap:20px}
}
@media (max-width:768px){
  .section{padding:var(--space-section-mobile) 0}
  .nav-wrap{height:60px}
  .main-nav .nav-links{
    display:none;
    position:absolute;top:60px;left:16px;right:16px;
    background:#fff;border:1px solid var(--color-border);
    border-radius:12px;box-shadow:0 12px 28px rgba(22,59,84,.12);
    flex-direction:column;padding:16px;gap:4px;z-index:200;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:12px 14px;border-radius:8px;border-bottom:none;width:100%}
  .nav-links a:hover{background:var(--color-primary-light);border-bottom:none}
  .nav-links a.active{background:var(--color-primary-light);border-bottom:none}
  .nav-cta .btn-outline{display:none}
  .nav-cta .btn{padding:0 18px;min-height:40px;font-size:14px}
  .nav-toggle{display:inline-flex;align-items:center}
  .page-hero{padding:52px 0 60px}
  .hero-inner h1{font-size:27px;margin:14px 0 10px}
  .hero-subtitle{font-size:16px;margin:0 0 24px}
  .section-head h2{font-size:22px}
  .timeline-item{padding-left:38px}
  .timeline-num{width:26px;height:26px;font-size:13px}
  .steps-grid{grid-template-columns:1fr 1fr;gap:14px}
  .step-card{padding:20px}
  .step-card.offset-step{transform:none}
  .step-card.offset-step:hover{transform:translateY(-3px)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-brand p{max-width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-inner h1{font-size:24px}
  .hero-subtitle{font-size:15px}
  .hero-actions{flex-direction:column;align-items:center}
  .hero-actions .btn{width:100%;max-width:320px}
  .overview-visual{display:flex;flex-direction:column;gap:16px;padding:0}
  .mini-card{position:static;width:100%;bottom:auto;left:auto;right:auto}
  .mini-card.second{right:auto;bottom:auto}
  .steps-grid{grid-template-columns:1fr}
  .step-card.offset-step{transform:none}
  .step-card:hover{transform:translateY(-3px)}
  .faq-question{padding:16px 18px}
  .faq-answer{padding:0 18px}
  .faq-item.open .faq-answer{padding:0 18px 16px}
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:23px}
  .footer-grid{gap:28px}
}