/* roulang page: index */
:root {
  --primary: #f25c3a;
  --primary-dark: #d94b2b;
  --primary-light: #ffefe9;
  --secondary: #17233d;
  --accent: #ffb020;
  --accent-light: #fff4d8;
  --bg: #f8f9fb;
  --surface: #ffffff;
  --text: #1d2433;
  --text-muted: #64748b;
  --border: #e8ecf1;
  --radius: 16px;
  --radius-lg: 28px;
  --radius-sm: 10px;
  --shadow: 0 6px 24px rgba(23,35,61,0.08);
  --shadow-lg: 0 18px 48px rgba(23,35,61,0.14);
  --space-section: 100px;
  --font-scale: 1;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .25s ease, opacity .25s ease; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1280px; padding-left: 20px; padding-right: 20px; margin: 0 auto; }
.container-fluid { padding-left: 20px; padding-right: 20px; }

.section { padding: var(--space-section) 0; position: relative; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-light); color: var(--primary);
  font-size: 14px; font-weight: 700; letter-spacing: .5px;
  padding: 6px 16px; border-radius: 30px; margin-bottom: 14px;
}
.section-tag i { font-size: 13px; }
.section-title { font-size: 38px; font-weight: 800; line-height: 1.25; color: var(--text); margin-bottom: 12px; letter-spacing: -1px; }
.section-sub { font-size: 16px; color: var(--text-muted); line-height: 1.7; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 15px;
  border: 2px solid transparent; transition: all .3s ease; cursor: pointer;
  letter-spacing: .3px; line-height: 1.4;
}
.btn:focus, .btn:focus-visible { outline: 3px solid rgba(242,92,58,.35); outline-offset: 2px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(242,92,58,.3); }
.btn-outline-light { border-color: rgba(255,255,255,.7); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.15); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--secondary); }
.btn-accent:hover { background: #f5a500; border-color: #f5a500; color: var(--secondary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,176,32,.3); }
.btn-lg { padding: 16px 38px; font-size: 17px; }

header.site-header {
  position: sticky; top: 12px; z-index: 1040;
  padding: 0 16px; margin-bottom: 8px;
}
.header-inner {
  max-width: 1280px; margin: 0 auto;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.65);
  border-radius: 24px;
  padding: 10px 20px;
  box-shadow: 0 8px 32px rgba(23,35,61,.10);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.brand-icon {
  width: 42px; height: 42px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 4px 12px rgba(242,92,58,.35);
  flex-shrink: 0;
}
.brand-text { font-size: 19px; font-weight: 800; letter-spacing: -.5px; color: var(--text); line-height: 1.2; }
.brand-text b { color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav-link {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px; border-radius: 30px;
  font-size: 15px; font-weight: 600; color: var(--text);
  transition: all .25s ease; white-space: nowrap;
}
.nav-link i { font-size: 14px; opacity: .8; }
.nav-link:hover { background: var(--primary-light); color: var(--primary); }
.nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(242,92,58,.3); }
.nav-link.active i { opacity: 1; }
.header-cta { display: flex; align-items: center; gap: 10px; }
.header-cta .btn { padding: 10px 24px; font-size: 14px; }
.nav-toggle {
  display: none; background: none; border: none; font-size: 22px; color: var(--text);
  cursor: pointer; padding: 8px; border-radius: 10px; transition: background .2s;
}
.nav-toggle:hover { background: var(--primary-light); color: var(--primary); }

@media (max-width: 992px) {
  .main-nav {
    position: absolute; top: calc(100% + 10px); left: 16px; right: 16px;
    background: #fff; border-radius: 20px; padding: 16px;
    box-shadow: var(--shadow-lg); flex-direction: column; align-items: stretch;
    display: none; border: 1px solid var(--border);
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; justify-content: flex-start; border-radius: 12px; }
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .brand-text { font-size: 17px; }
}
@media (max-width: 576px) {
  header.site-header { top: 8px; padding: 0 10px; }
  .header-inner { padding: 8px 14px; border-radius: 18px; }
  .brand-icon { width: 36px; height: 36px; font-size: 15px; border-radius: 11px; }
  .brand-text { font-size: 15px; }
}

.hero-section {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, rgba(23,35,61,.92) 0%, rgba(23,35,61,.65) 50%, rgba(242,92,58,.8) 100%),
              url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-radius: 32px;
  margin: 0 16px;
  padding: 96px 0 100px;
  color: #fff;
  min-height: 560px;
  display: flex; align-items: center;
}
@media (max-width: 768px) {
  .hero-section { border-radius: 22px; margin: 0 10px; padding: 64px 0 70px; min-height: auto; }
}
.hero-content { max-width: 720px; padding: 0 30px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff; font-size: 14px; font-weight: 600;
  padding: 7px 18px; border-radius: 40px; margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-badge i { color: var(--accent); font-size: 13px; }
.hero-title { font-size: 52px; font-weight: 900; line-height: 1.18; margin-bottom: 18px; letter-spacing: -1px; }
.hero-title .grad-text {
  background: linear-gradient(120deg, #fff, #ffd9a8);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-text { font-size: 18px; line-height: 1.7; color: rgba(255,255,255,.9); max-width: 560px; margin-bottom: 30px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-points { display: flex; gap: 26px; flex-wrap: wrap; }
.hero-points li { display: flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 600; color: rgba(255,255,255,.85); }
.hero-points li i { color: var(--accent); font-size: 15px; }
@media (max-width: 768px) {
  .hero-title { font-size: 34px; }
  .hero-text { font-size: 16px; }
  .hero-btns .btn { padding: 12px 22px; font-size: 14px; }
  .hero-points { gap: 16px; }
}

.intro-section { padding: var(--space-section) 0 60px; }
.intro-img-wrap {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.intro-img-wrap img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
.intro-img-badge {
  position: absolute; bottom: 20px; left: 20px;
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  border-radius: 14px; padding: 14px 22px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow);
}
.intro-img-badge i { font-size: 24px; color: var(--primary); }
.intro-img-badge div small { display: block; font-size: 12px; color: var(--text-muted); font-weight: 500; }
.intro-img-badge div strong { font-size: 16px; color: var(--text); font-weight: 700; }
.intro-text { padding-left: 20px; }
.intro-text .section-title { margin-bottom: 16px; }
.intro-text p { color: var(--text-muted); margin-bottom: 20px; font-size: 16px; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 12px; }
.feature-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 16px;
  display: flex; gap: 12px; align-items: flex-start;
  transition: all .3s ease;
}
.feature-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-3px); }
.feature-item i { font-size: 20px; color: var(--primary); margin-top: 3px; flex-shrink: 0; }
.feature-item strong { font-size: 15px; font-weight: 700; display: block; margin-bottom: 3px; }
.feature-item p { font-size: 13px; color: var(--text-muted); margin: 0; }
@media (max-width: 768px) {
  .intro-text { padding-left: 0; margin-top: 32px; }
  .feature-list { grid-template-columns: 1fr; }
}

.category-section { padding: 60px 0; }
.category-card {
  background: var(--surface); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all .35s ease; height: 100%;
  display: flex; flex-direction: column;
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.category-img { position: relative; height: 230px; overflow: hidden; }
.category-img img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.category-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(23,35,61,.25), transparent 60%);
}
.category-body { padding: 26px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.category-body h3 { font-size: 23px; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.category-body p { color: var(--text-muted); font-size: 15px; line-height: 1.7; margin-bottom: 22px; flex: 1; }
.category-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; color: var(--primary);
  padding: 0 0 4px; border-bottom: 2px solid transparent; transition: all .25s ease;
  width: fit-content;
}
.category-link:hover { color: var(--primary-dark); border-bottom-color: var(--primary); gap: 12px; }
.category-link i { font-size: 14px; }

.latest-section { padding: 30px 0 70px; }
.post-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  height: 100%; transition: all .3s ease; display: flex; flex-direction: column;
  position: relative; overflow: hidden;
}
.post-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity .3s;
}
.post-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: var(--primary-light); }
.post-card:hover::before { opacity: 1; }
.post-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.badge-cat {
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 700; padding: 4px 14px; border-radius: 20px;
  letter-spacing: .3px;
}
.post-date { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
.post-date i { font-size: 12px; }
.post-title { font-size: 19px; font-weight: 700; line-height: 1.4; margin-bottom: 12px; }
.post-title a { transition: color .2s; }
.post-title a:hover { color: var(--primary); }
.post-desc { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.post-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary); font-weight: 700; font-size: 15px; transition: gap .25s;
}
.post-link:hover { gap: 10px; color: var(--primary-dark); }
.post-link i { font-size: 13px; }
.empty-box {
  background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius);
  padding: 60px 30px; text-align: center; color: var(--text-muted);
}
.empty-box i { font-size: 42px; opacity: .4; margin-bottom: 14px; display: block; }
.empty-box p { font-size: 16px; }

.stats-section {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, rgba(23,35,61,.93) 0%, rgba(23,35,61,.78) 100%),
              url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 80px 0; color: #fff; margin: 30px 0;
}
.stat-item { text-align: center; padding: 20px 10px; }
.stat-item i {
  font-size: 32px; color: var(--accent); margin-bottom: 14px;
  width: 68px; height: 68px; border-radius: 50%;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  display: inline-flex; align-items: center; justify-content: center;
}
.stat-number { font-size: 44px; font-weight: 900; letter-spacing: -1px; line-height: 1.2; margin-bottom: 6px; }
.stat-label { font-size: 15px; color: rgba(255,255,255,.8); font-weight: 500; }
@media (max-width: 576px) {
  .stat-number { font-size: 34px; }
  .stats-section { padding: 60px 0; }
}

.steps-section { padding: 70px 0 90px; }
.step-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 34px 24px 30px; text-align: center; position: relative;
  height: 100%; transition: all .3s ease;
}
.step-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: var(--accent); }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 20px; font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 18px; box-shadow: 0 6px 16px rgba(242,92,58,.3);
  position: relative; z-index: 1;
}
.step-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin: 0; }
.step-arrow {
  position: absolute; right: -18px; top: 50%; transform: translateY(-50%);
  color: var(--border); font-size: 20px; z-index: 2; display: none;
}
@media (min-width: 992px) {
  .step-arrow { display: block; }
}

.faq-section { padding: 70px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 14px; overflow: hidden; transition: border-color .25s;
  background: var(--bg);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 20px 24px; cursor: pointer; font-weight: 700; font-size: 16px;
  transition: background .25s;
}
.faq-q:hover { background: var(--primary-light); }
.faq-q i { font-size: 16px; color: var(--primary); transition: transform .3s; flex-shrink: 0; }
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-a {
  padding: 0 24px; max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  color: var(--text-muted); font-size: 15px; line-height: 1.75;
}
.faq-item.active .faq-a {
  padding: 0 24px 22px; max-height: 300px;
}
.faq-a p { margin: 0; }

.cta-section {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, rgba(242,92,58,.92) 0%, rgba(255,176,32,.85) 100%),
              url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  margin: 40px 16px 20px; border-radius: 32px;
  padding: 72px 30px; text-align: center; color: #fff;
}
.cta-section h2 { font-size: 40px; font-weight: 900; letter-spacing: -1px; margin-bottom: 12px; }
.cta-section p { font-size: 18px; opacity: .9; margin-bottom: 30px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-btns .btn-light { background: #fff; border-color: #fff; color: var(--primary); font-weight: 700; }
.cta-btns .btn-light:hover { background: var(--primary-light); border-color: var(--primary-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,.15); }
.cta-btns .btn-outline-light2 { border: 2px solid #fff; color: #fff; background: transparent; font-weight: 600; }
.cta-btns .btn-outline-light2:hover { background: rgba(255,255,255,.15); color: #fff; transform: translateY(-2px); }
@media (max-width: 576px) {
  .cta-section { border-radius: 22px; margin: 30px 10px 16px; padding: 48px 20px; }
  .cta-section h2 { font-size: 28px; }
  .cta-section p { font-size: 16px; }
}

footer.site-footer { background: var(--secondary); color: #aab3c5; padding: 60px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .brand-icon { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.footer-brand .brand-text { color: #fff; }
.footer-desc { font-size: 15px; line-height: 1.7; max-width: 360px; }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 15px; color: #aab3c5; display: inline-flex; align-items: center; gap: 7px; }
.footer-links a:hover { color: var(--accent); }
.footer-links a i { font-size: 12px; opacity: .7; }
.footer-bottom {
  padding: 22px 0; display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap; font-size: 14px; color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 576px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

.back-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 1050;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none;
  font-size: 18px; cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(242,92,58,.35); transition: all .3s ease; opacity: 0; visibility: hidden;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { transform: translateY(-4px); background: var(--primary-dark); }

.page-wrapper { overflow: hidden; }
@media (max-width: 991px) {
  :root { --space-section: 70px; }
  .section-title { font-size: 30px; }
}
@media (max-width: 576px) {
  :root { --space-section: 55px; }
  .section-title { font-size: 26px; }
  .section-head { margin-bottom: 36px; }
}

/* roulang page: category1 */
:root {
  --primary: #6c5ce7;
  --primary-dark: #5a4bd1;
  --primary-light: #ede9fe;
  --secondary: #00b894;
  --secondary-light: #d5f7ee;
  --accent: #fdcb6e;
  --accent-light: #fff7e6;
  --bg-body: #f8f9fe;
  --bg-card: #ffffff;
  --text-main: #1e2a3a;
  --text-muted: #67758a;
  --border: #e5e9f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(30, 42, 58, 0.06);
  --shadow-md: 0 8px 30px rgba(30, 42, 58, 0.08);
  --shadow-lg: 0 18px 48px rgba(30, 42, 58, 0.12);
  --space-section: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: var(--primary);
  transition: color 0.2s ease;
}

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

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

button,
input {
  font-family: inherit;
}

.container {
  max-width: 1240px;
  padding-left: 24px;
  padding-right: 24px;
}

/* Header */
.site-header {
  padding: 18px 0;
  background: rgba(248, 249, 254, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1020;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s ease;
}

.header-inner:hover {
  box-shadow: var(--shadow-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
}

.brand:hover {
  color: var(--text-main);
}

.brand-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #8b7bf7);
  color: #fff;
  border-radius: 12px;
  font-size: 1.05rem;
  box-shadow: 0 6px 16px rgba(108, 92, 231, 0.35);
}

.brand-text {
  letter-spacing: 0.02em;
}

.brand-text b {
  color: var(--primary);
  font-weight: 800;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 10px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-link i {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-link:hover {
  background: var(--bg-body);
  color: var(--text-main);
  transform: translateY(-1px);
}

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

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(108, 92, 231, 0.15);
}

.nav-link.active i {
  color: var(--primary);
}

.header-cta .btn {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-main);
  border-radius: 12px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(108, 92, 231, 0.2);
}

/* Buttons */
.btn {
  border-radius: 12px;
  padding: 10px 22px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #8b7bf7);
  border: none;
  color: #fff;
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(108, 92, 231, 0.35);
}

.btn-primary:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.25);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--secondary-light);
  border: 1px solid rgba(0, 184, 148, 0.2);
  color: #078a70;
}

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

/* Page hero */
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 90px 0 80px;
  color: #fff;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(30, 42, 58, 0.82) 0%, rgba(108, 92, 231, 0.55) 80%, rgba(108, 92, 231, 0.2) 100%);
}

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

.crumbs {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50px;
  backdrop-filter: blur(6px);
  font-size: 0.85rem;
  margin-bottom: 26px;
}

.crumbs a {
  color: rgba(255, 255, 255, 0.85);
}

.crumbs a:hover {
  color: #fff;
}

.crumbs span {
  opacity: 0.6;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.page-hero h1 .highlight {
  color: var(--accent);
}

.page-hero .lead {
  font-size: 1.1rem;
  max-width: 680px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 30px;
}

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

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

.section-light {
  background: var(--bg-card);
}

.section-tint {
  background: linear-gradient(180deg, var(--bg-body) 0%, var(--primary-light) 100%);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 46px;
}

.section-head .eyebrow {
  display: inline-block;
  padding: 5px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Step cards */
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  height: 100%;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(108, 92, 231, 0.25);
}

.step-num {
  position: absolute;
  top: 22px;
  right: 24px;
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  transition: color 0.3s ease;
}

.step-card:hover .step-num {
  color: var(--primary);
}

.step-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  font-size: 1.35rem;
  color: var(--primary);
  background: var(--primary-light);
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Info cards */
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.info-card .cover {
  height: 160px;
  overflow: hidden;
}

.info-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.info-card .body {
  padding: 24px;
}

.info-card .badge {
  background: var(--accent-light);
  color: #b7791f;
  border: 1px solid #fbe3b0;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.info-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.info-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Stats */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  padding: 34px 20px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.stat-card .num {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-card .label {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Article list */
.article-list {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}

.article-item:last-child {
  border-bottom: none;
}

.article-item:hover {
  background: var(--bg-body);
}

.article-item .icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.15rem;
}

.article-item .meta {
  flex: 1;
  min-width: 0;
}

.article-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-item h3 a {
  color: var(--text-main);
}

.article-item h3 a:hover {
  color: var(--primary);
}

.article-item .desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-item .info {
  display: flex;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
}

.article-item .info i {
  margin-right: 4px;
  color: var(--primary);
}

/* Accordion */
.accordion .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.accordion .accordion-button {
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  background: var(--bg-card);
  border: none;
  box-shadow: none;
}

.accordion .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
}

.accordion .accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
}

.accordion .accordion-button::after {
  background-size: 1rem;
  filter: hue-rotate(220deg);
}

.accordion .accordion-body {
  padding: 10px 22px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* CTA block */
.cta-block {
  background: linear-gradient(135deg, var(--primary) 0%, #8b7bf7 60%, #b39dfc 100%);
  border-radius: var(--radius-lg);
  padding: 54px 48px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-block::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-block::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 20px;
  width: 160px;
  height: 160px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 50%;
}

.cta-block h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-block p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  max-width: 520px;
}

.cta-block .btn {
  background: #fff;
  color: var(--primary);
  border: none;
  font-weight: 700;
}

.cta-block .btn:hover {
  background: var(--accent-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

/* Category tile */
.category-tile {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  align-items: center;
  gap: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.category-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-tile .icon-wrap {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.5rem;
}

.category-tile h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.category-tile p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.category-tile .btn-sm {
  padding: 6px 18px;
  font-size: 0.88rem;
}

/* Footer */
.site-footer {
  background: #1e2a3a;
  color: #aab6c8;
  padding: 60px 0 0;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand .brand-icon {
  width: 38px;
  height: 38px;
  font-size: 0.95rem;
}

.footer-brand .brand-text b {
  color: #b39dfc;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.75;
  color: #8b97a8;
  margin-bottom: 0;
  max-width: 380px;
}

.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: #aab6c8;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.footer-links a i {
  font-size: 0.7rem;
  color: #6c7a8d;
  transition: transform 0.2s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-links a:hover i {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: #7d8a9c;
}

.footer-bottom a {
  color: #aab6c8;
}

.footer-bottom a:hover {
  color: #fff;
}

/* Responsive */
@media (max-width: 991.98px) {
  .main-nav {
    position: fixed;
    top: 90px;
    left: 16px;
    right: 16px;
    z-index: 1040;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    display: none;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }

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

  .nav-link {
    padding: 13px 16px;
  }

  .navbar-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .header-cta {
    display: none;
  }

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

  .cta-block {
    padding: 40px 28px;
  }

  .category-tile {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767.98px) {
  :root {
    --space-section: 54px;
  }

  .page-hero {
    padding: 64px 0 56px;
  }

  .page-hero .lead {
    font-size: 1rem;
  }

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

  .article-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px;
    gap: 12px;
  }

  .article-item .info {
    width: 100%;
    flex-wrap: wrap;
  }

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

  .header-inner {
    padding: 8px 12px;
    border-radius: 14px;
  }

  .brand {
    font-size: 1.15rem;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    font-size: 0.9rem;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .stat-card {
    padding: 24px 14px;
  }

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

  .section-head h2 {
    font-size: 1.5rem;
  }

  .crumb-text {
    font-size: 0.78rem;
  }

  .cta-block h2 {
    font-size: 1.5rem;
  }
}

/* roulang page: article */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --accent: #f59e0b;
    --accent-light: #fef3c7;
    --accent-dark: #d97706;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --bg: #f8fafc;
    --white: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 10px rgba(15,23,42,0.06);
    --shadow-md: 0 6px 24px rgba(15,23,42,0.09);
    --shadow-lg: 0 16px 40px rgba(15,23,42,0.14);
    --transition: 0.3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul{list-style:none}
button{border:none;background:none;cursor:pointer}
.container{max-width:1240px;padding-left:20px;padding-right:20px}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}

/* 导航 */
.site-header{background:rgba(255,255,255,0.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);position:sticky;top:0;z-index:1000;border-bottom:1px solid var(--border);padding:12px 0}
.header-inner{max-width:1240px;margin:0 auto;padding:0 12px;display:flex;align-items:center;gap:16px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:10px 16px 10px 20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#4f46e5,#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 4px 12px rgba(79,70,229,0.3)}
.brand-text{font-size:18px;font-weight:800;color:var(--dark);letter-spacing:-0.5px}
.brand-text b{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{padding:9px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text-muted);display:flex;align-items:center;gap:7px;transition:all var(--transition)}
.nav-link i{font-size:14px}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);background:var(--primary-light);box-shadow:inset 0 0 0 1px rgba(79,70,229,0.15)}
.header-cta{flex-shrink:0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:999px;font-weight:700;font-size:14px;transition:all var(--transition)}
.btn-primary{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;box-shadow:0 4px 16px rgba(79,70,229,0.35);border:none}
.btn-primary:hover{background:linear-gradient(135deg,#4338ca,#4f46e5);transform:translateY(-2px);box-shadow:0 6px 20px rgba(79,70,229,0.45);color:#fff}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 4px 16px rgba(0,0,0,0.15)}
.btn-light:hover{background:#f1f5f9;transform:translateY(-2px);color:var(--primary-dark)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.5)}
.btn-outline:hover{background:rgba(255,255,255,0.12);color:#fff}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:var(--bg);color:var(--text);font-size:18px;align-items:center;justify-content:center;transition:all var(--transition)}
.nav-toggle:hover{background:var(--primary-light);color:var(--primary)}

/* 文章 Hero */
.article-hero{position:relative;padding:70px 0 56px;background-image:linear-gradient(135deg,rgba(15,23,42,0.88),rgba(30,41,59,0.72)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#fff}
.article-hero .breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,0.7);margin-bottom:20px;flex-wrap:wrap}
.article-hero .breadcrumb-nav a:hover{color:#fff}
.article-hero .breadcrumb-nav i{font-size:10px;color:rgba(255,255,255,0.5)}
.article-hero h1{font-size:36px;font-weight:800;max-width:860px;margin-bottom:18px;line-height:1.3;letter-spacing:-0.5px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.article-meta .badge-dot{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.25);backdrop-filter:blur(6px);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:#fff}
.article-meta .badge-dot i{color:var(--accent)}
.article-meta .meta-time{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:rgba(255,255,255,0.75)}
.article-meta .meta-time i{color:var(--accent)}

/* 正文与侧边栏 */
.article-section{padding:50px 0 40px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:30px;align-items:start}
.article-main{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:44px;border:1px solid rgba(226,232,240,0.6)}
.article-content{font-size:16px;line-height:1.9;color:#334155}
.article-content h2{font-size:22px;font-weight:700;color:var(--dark);margin:36px 0 16px;padding-bottom:10px;border-bottom:2px solid var(--primary-light)}
.article-content h3{font-size:19px;font-weight:700;color:var(--dark);margin:28px 0 12px}
.article-content p{margin:0 0 18px}
.article-content img{border-radius:var(--radius-md);box-shadow:var(--shadow-md);margin:24px 0}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:24px}
.article-content li{margin-bottom:8px}
.article-content li::marker{color:var(--primary)}
.article-content blockquote{border-left:4px solid var(--primary);background:var(--primary-light);padding:16px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:24px 0;color:#4338ca}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(79,70,229,0.3)}
.article-content a:hover{border-bottom-color:var(--primary)}
.article-content hr{border:none;border-top:1px solid var(--border);margin:32px 0}
.article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px solid var(--border)}
.article-tags span{font-size:14px;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.article-tags a{display:inline-block;padding:5px 14px;background:var(--bg);border-radius:999px;font-size:13px;font-weight:600;color:var(--text-muted)}
.article-tags a:hover{background:var(--primary-light);color:var(--primary)}
.article-share{display:flex;align-items:center;gap:10px;margin-top:20px}
.article-share span{font-size:14px;color:var(--text-muted)}
.share-btn{width:38px;height:38px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--text-muted);transition:all var(--transition)}
.share-btn:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

/* 侧边栏 */
.article-sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:90px}
.side-widget{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:26px;border:1px solid rgba(226,232,240,0.6)}
.side-widget-title{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;color:var(--dark);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--primary-light)}
.side-widget-title i{color:var(--primary)}
.side-post-item{margin-bottom:14px}
.side-post-item:last-child{margin-bottom:0}
.side-post-link{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:var(--radius-md);transition:all var(--transition)}
.side-post-link:hover{background:var(--bg)}
.side-post-thumb{width:68px;height:52px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
.side-post-info h4{font-size:14px;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-post-info span{font-size:12px;color:var(--text-muted)}
.side-cat-list{display:flex;flex-direction:column;gap:8px}
.side-cat-link{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:var(--radius-md);background:var(--bg);font-size:14px;font-weight:600;color:var(--text);transition:all var(--transition)}
.side-cat-link i{color:var(--primary);font-size:13px}
.side-cat-link:hover{background:var(--primary-light);color:var(--primary);transform:translateX(4px)}

/* 相关推荐 */
.related-section{padding:56px 0 30px}
.section-title{display:flex;align-items:center;gap:12px;margin-bottom:30px}
.section-title h2{font-size:28px;font-weight:800;color:var(--dark)}
.section-title .seo-line{flex:1;height:1px;background:linear-gradient(90deg,var(--border),transparent)}
.article-card{display:block;background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid rgba(226,232,240,0.6);transition:all var(--transition);height:100%}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.article-card-img{position:relative;height:180px;overflow:hidden}
.article-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease}
.article-card:hover .article-card-img img{transform:scale(1.06)}
.article-card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(15,23,42,0.25))}
.article-card-body{padding:22px}
.article-card-body .badge-card{display:inline-block;padding:4px 12px;background:var(--primary-light);color:var(--primary);border-radius:999px;font-size:12px;font-weight:700;margin-bottom:10px}
.article-card-body h3{font-size:16px;font-weight:700;color:var(--dark);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.article-card-body p{font-size:13px;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.article-card-body .card-time{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:5px}

/* 分类入口 */
.category-section{padding:40px 0 40px}
.category-card{position:relative;display:block;border-radius:var(--radius-lg);overflow:hidden;height:200px;box-shadow:var(--shadow-md);transition:all var(--transition)}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.category-card img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease}
.category-card:hover img{transform:scale(1.05)}
.category-card::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,0.72),rgba(15,23,42,0.2))}
.category-card .category-info{position:absolute;left:0;right:0;bottom:0;padding:28px;z-index:2;color:#fff}
.category-card .category-info h3{font-size:22px;font-weight:800;margin-bottom:4px}
.category-card .category-info p{font-size:13px;color:rgba(255,255,255,0.8);margin-bottom:12px}
.category-card .category-info .category-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.18);border:1px solid rgba(255,255,255,0.3);backdrop-filter:blur(6px);padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600}

/* FAQ */
.faq-section{padding:56px 0;background:var(--white);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--bg);border-radius:var(--radius-md);padding:22px 26px;margin-bottom:14px;border:1px solid transparent;transition:all var(--transition);cursor:pointer}
.faq-item:hover{border-color:var(--primary-light);background:#fff;box-shadow:var(--shadow-sm)}
.faq-item summary{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;color:var(--dark);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--primary);font-size:14px;width:22px;height:22px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center}
.faq-item[open]{border-color:var(--primary-light);background:#fff;box-shadow:var(--shadow-sm)}
.faq-item[open] summary{color:var(--primary)}
.faq-answer{padding:14px 0 0 34px;color:var(--text-muted);font-size:14px;line-height:1.8}

/* CTA */
.cta-section{padding:56px 0}
.cta-box{background:linear-gradient(135deg,#0f172a,#1e293b);border-radius:calc(var(--radius-lg) + 6px);padding:60px 48px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-80px;right:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(79,70,229,0.4),transparent 70%)}
.cta-box h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-box p{font-size:16px;color:rgba(255,255,255,0.75);max-width:620px;margin:0 auto 30px}
.cta-box .btn-group{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,0.75);padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-icon{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:16px}
.footer-brand .brand-text b{color:#818cf8}
.footer-desc{font-size:14px;line-height:1.8;letter-spacing:0.02em}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13px;color:rgba(255,255,255,0.65);display:inline-flex;align-items:center;gap:8px;transition:all var(--transition)}
.footer-links a i{font-size:9px;color:#818cf8}
.footer-links a:hover{color:#fff;transform:translateX(4px)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.1);font-size:13px;color:rgba(255,255,255,0.5)}
.footer-bottom a{color:#818cf8}
.footer-bottom a:hover{color:#fff}

/* 内容未找到 */
.not-found{text-align:center;padding:80px 20px}
.not-found i{font-size:64px;color:var(--primary);margin-bottom:24px;opacity:0.6}
.not-found h2{font-size:28px;color:var(--dark);margin-bottom:12px}
.not-found p{font-size:16px;color:var(--text-muted);margin-bottom:28px}
.not-found .btn{margin:0 auto}

/* 响应式 */
@media (max-width:1024px){
.article-grid{grid-template-columns:1fr}
.article-sidebar{position:static;flex-direction:row;flex-wrap:wrap}
.article-sidebar .side-widget{flex:1;min-width:280px}
}
@media (max-width:768px){
.header-inner{padding:10px 12px}
.main-nav{position:absolute;top:100%;left:16px;right:16px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:16px;display:none;flex-direction:column;gap:6px;border:1px solid var(--border)}
.main-nav.open{display:flex}
.main-nav .nav-link{padding:12px 16px;border-radius:var(--radius-md)}
.header-cta{display:none}
.nav-toggle{display:flex}
.article-hero{padding:48px 0 40px}
.article-hero h1{font-size:27px}
.article-main{padding:26px 20px}
.footer-grid{grid-template-columns:1fr;gap:28px}
.cta-box{padding:40px 24px}
.cta-box h2{font-size:24px}
.section-title h2{font-size:24px}
}
@media (max-width:520px){
.article-hero h1{font-size:23px}
.article-meta{flex-direction:column;align-items:flex-start;gap:10px}
.article-main{border-radius:var(--radius-md);padding:20px 16px}
.article-content{font-size:15px}
.article-tags{flex-direction:column;align-items:flex-start}
.footer-bottom{flex-direction:column;text-align:center}
.btn-group{flex-direction:column;width:100%}
.btn-group .btn{width:100%;justify-content:center}
}

/* roulang page: category2 */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --primary-soft: #e0e7ff;
    --accent: #f59e0b;
    --accent-light: #fef3c7;
    --accent-dark: #d97706;
    --background: #f6f7fb;
    --surface: #ffffff;
    --surface-soft: #fafbfe;
    --text: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --border: #e6e8f0;
    --radius: 18px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.06);
    --shadow: 0 10px 32px rgba(30, 41, 59, 0.09);
    --shadow-lg: 0 20px 48px rgba(30, 41, 59, 0.14);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --space-section: 72px;
}

@media (max-width: 768px) {
    :root { --space-section: 52px; }
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--background);
    line-height: 1.7;
    letter-spacing: 0.01em;
    margin: 0;
    padding: 0;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }

.container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    padding: 12px 24px;
    border: 1px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: 0.02em;
}
.btn:focus, .btn:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2); }
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(79, 70, 229, 0.35);
}
.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-accent:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(245, 158, 11, 0.35);
}
.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #fff;
    background: transparent;
}
.btn-outline-light:hover {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
    transform: translateY(-2px);
}
.btn-outline-primary {
    border: 2px solid var(--border);
    color: var(--text);
    background: var(--surface);
}
.btn-outline-primary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 16px;
    z-index: 1050;
    padding: 0 20px;
}
.header-inner {
    max-width: 1240px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    gap: 16px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: #fff;
    border-radius: 12px;
    font-size: 17px;
    box-shadow: 0 6px 14px rgba(79, 70, 229, 0.35);
}
.brand-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}
.brand-text b {
    color: var(--primary);
    font-weight: 800;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    padding: 5px;
    border-radius: 16px;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: 12px;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.92rem;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-link i { font-size: 0.85rem; opacity: 0.85; }
.nav-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}
.nav-link.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 14px rgba(79, 70, 229, 0.35);
}
.nav-link.active:hover { color: #fff; }
.header-cta .btn { padding: 10px 20px; font-size: 0.9rem; border-radius: 12px; }
.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: var(--primary-light);
    border: none;
    border-radius: 12px;
    color: var(--primary);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}
.nav-toggle:hover { background: var(--primary-soft); }

/* ===== Hero ===== */
.page-hero {
    position: relative;
    background: linear-gradient(120deg, rgba(30, 27, 75, 0.92), rgba(67, 56, 202, 0.86)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 130px 0 120px;
    color: #fff;
    overflow: hidden;
    margin-top: -16px;
    border-radius: 0 0 44px 44px;
}
.page-hero::after {
    content: '';
    position: absolute;
    right: -120px;
    top: -60px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 60%);
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    padding: 7px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    backdrop-filter: blur(6px);
}
.hero-badge i { color: var(--accent); }
.page-hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
}
.page-hero .lead {
    font-size: 1.12rem;
    color: rgba(255, 255, 255, 0.92);
    max-width: 560px;
    margin-bottom: 30px;
}
.hero-buttons { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Stats ===== */
.stats-section {
    position: relative;
    z-index: 2;
    margin-top: -54px;
    padding-bottom: calc(var(--space-section) - 16px);
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}
.stat-card::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0.8;
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 19px;
    margin-bottom: 12px;
}
.stat-num {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
}
.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== Section common ===== */
.section-block { padding: var(--space-section) 0; }
.section-alt { background: var(--surface); }
.section-head {
    margin-bottom: 44px;
}
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
    letter-spacing: 0.04em;
}
.section-head h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}
.section-head .section-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 620px;
}

/* ===== Activity cards ===== */
.activity-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-soft);
}
.activity-img {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--primary-light);
}
.activity-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}
.activity-card:hover .activity-img img { transform: scale(1.05); }
.activity-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 23, 42, 0.82);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}
.activity-body {
    padding: 24px 24px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.activity-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}
.activity-body p {
    font-size: 0.91rem;
    color: var(--text-light);
    line-height: 1.65;
    flex: 1;
    margin-bottom: 18px;
}
.activity-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
}
.activity-meta span {
    font-size: 0.84rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.activity-meta .btn { padding: 8px 16px; font-size: 0.84rem; }

/* ===== Type cards ===== */
.type-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 26px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.type-card::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 0;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.4s ease;
}
.type-card:hover::after { width: 70%; }
.type-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-soft);
}
.type-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 62px;
    height: 62px;
    border-radius: 18px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 24px;
    margin-bottom: 18px;
    transition: var(--transition);
}
.type-card:hover .type-icon {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 10px 22px rgba(79, 70, 229, 0.35);
}
.type-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.type-card p { font-size: 0.91rem; color: var(--text-light); line-height: 1.65; margin-bottom: 14px; }
.type-card a { font-size: 0.88rem; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.type-card a:hover { gap: 10px; }

/* ===== Process ===== */
.process-section {
    background: linear-gradient(140deg, #1e1b4b, #312e81);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.process-section::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 60%);
    pointer-events: none;
}
.process-section .section-kicker { background: rgba(255, 255, 255, 0.14); color: #fff; }
.process-section .section-head h2 { color: #fff; }
.process-section .section-subtitle { color: rgba(255, 255, 255, 0.8); }
.process-step {
    text-align: center;
    padding: 30px 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    height: 100%;
    transition: var(--transition);
    position: relative;
}
.process-step:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    font-size: 1.15rem;
    margin-bottom: 16px;
    box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.2);
}
.process-step h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 0.88rem; color: rgba(255, 255, 255, 0.78); margin-bottom: 0; line-height: 1.6; }

/* ===== Reviews ===== */
.review-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 26px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.review-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
    border-color: var(--primary-soft);
}
.review-stars {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 14px;
    letter-spacing: 2px;
}
.review-text {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.75;
    flex: 1;
    margin-bottom: 20px;
}
.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.review-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 700;
    font-size: 1rem;
}
.review-user strong { display: block; font-size: 0.92rem; color: var(--text); }
.review-user small { font-size: 0.8rem; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-accordion .accordion-item {
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.faq-accordion .accordion-item:hover { border-color: var(--primary-soft); box-shadow: var(--shadow); }
.faq-accordion .accordion-button {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    padding: 18px 22px;
    background: var(--surface);
    transition: var(--transition);
}
.faq-accordion .accordion-button:not(.collapsed) {
    background: var(--primary-light);
    color: var(--primary);
    box-shadow: none;
}
.faq-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary);
}
.faq-accordion .accordion-button::after {
    background-size: 16px;
    opacity: 0.6;
}
.faq-accordion .accordion-body {
    padding: 4px 22px 20px;
    color: var(--text-light);
    font-size: 0.94rem;
    line-height: 1.75;
    background: var(--surface);
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(120deg, rgba(30, 27, 75, 0.92), rgba(79, 70, 229, 0.88)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 90px 0;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-section h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}
.cta-section p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 520px;
    margin: 0 auto 30px;
}
.cta-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }

/* ===== Footer ===== */
.site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 26px;
    margin-top: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 0.8fr 0.9fr;
    gap: 48px;
    margin-bottom: 44px;
}
.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .brand-icon {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: #fff;
}
.footer-brand .brand-text { color: #fff; font-size: 1.15rem; }
.footer-brand .brand-text b { color: #a5b4fc; }
.footer-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.62);
    line-height: 1.75;
    max-width: 340px;
    margin-bottom: 0;
}
.footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.03em;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li { margin-bottom: 11px; }
.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.footer-links a i { font-size: 0.62rem; color: rgba(255, 255, 255, 0.35); transition: var(--transition); }
.footer-links a:hover {
    color: #fff;
    padding-left: 4px;
}
.footer-links a:hover i { color: var(--accent); }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.84rem;
    color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .header-cta { display: none; }
    .nav-link { padding: 9px 13px; font-size: 0.86rem; }
    .main-nav { gap: 4px; }
}

@media (max-width: 820px) {
    .site-header { top: 10px; padding: 0 12px; }
    .header-inner { flex-wrap: wrap; }
    .main-nav {
        display: none;
        width: 100%;
        order: 3;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 10px;
        box-shadow: var(--shadow);
        margin-top: 4px;
    }
    .main-nav.open { display: flex; }
    .nav-link {
        justify-content: flex-start;
        padding: 11px 14px;
        width: 100%;
        font-size: 0.92rem;
        border-radius: 10px;
    }
    .nav-toggle { display: inline-flex; }
    .page-hero { padding: 100px 0 100px; border-radius: 0 0 28px 28px; }
    .stats-section { margin-top: -36px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 520px) {
    .header-cta { display: none; }
    .brand-text { font-size: 1.05rem; }
    .header-inner { padding: 10px 14px; border-radius: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; }
    .page-hero h1 { font-size: 1.8rem; }
    .section-head h2 { font-size: 1.45rem; }
    .activity-meta { flex-direction: column; align-items: flex-start; gap: 12px; }
    .cta-buttons { flex-direction: column; width: 100%; }
    .cta-buttons .btn { width: 100%; }
    .process-section { padding: 50px 0; }
}