/* roulang page: index */
:root {
  --primary: #2C6E91;
  --primary-dark: #1E4F6D;
  --primary-tint: #EAF2F7;
  --accent: #D9822B;
  --accent-dark: #c4721f;
  --bg: #F5F9FC;
  --card-bg: #FFFFFF;
  --text: #223B4A;
  --text-body: #4A6372;
  --text-muted: #7C93A1;
  --border: #E2ECF2;
  --line-timeline: #D5E4EE;
  --success: #2E7D5B;
  --success-tint: #E8F4EF;
  --error: #C0392B;
  --error-tint: #FCEAEA;
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(23,44,58,.05), 0 10px 30px rgba(23,44,58,.07);
  --shadow-hover: 0 2px 4px rgba(23,44,58,.06), 0 18px 44px rgba(23,44,58,.12);
  --transition: .25s ease;
  --container: 1200px;
  --space-sec: 96px;
  --space-sec-md: 64px;
  --space-sec-sm: 48px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
input:focus, select:focus, textarea:focus, button:focus, a:focus { outline: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { box-shadow: 0 0 0 3px rgba(44,110,145,.25); }

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

.section { padding: var(--space-sec) 0; }
.section-alt { background: #fff; }
.section-highlight { background: var(--primary-tint); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--primary);
  text-transform: uppercase;
}
.eyebrow::before { content: ''; width: 16px; height: 2px; background: var(--primary); border-radius: 2px; }
.section-head { margin-bottom: 48px; }
.section-head h2 { font-size: 32px; line-height: 1.3; font-weight: 700; color: var(--text); margin-top: 12px; letter-spacing: -.01em; }
.section-head p { color: var(--text-muted); max-width: 640px; margin-top: 12px; font-size: 15px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(23,44,58,.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 20px;
}
.logo-mark i { font-size: 18px; }
.logo-text { font-size: 20px; font-weight: 700; letter-spacing: -.01em; color: var(--text); line-height: 1.2; }
.logo-text em {
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  vertical-align: super;
  margin-left: 2px;
  letter-spacing: .05em;
}
.nav-wrap { display: flex; align-items: center; gap: 8px; }
.main-nav ul { display: flex; gap: 4px; align-items: center; }
.main-nav a {
  display: block;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  position: relative;
  transition: all var(--transition);
}
.main-nav a:hover { background: var(--primary-tint); color: var(--primary-dark); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 1px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 4px;
  border-radius: 2px;
  background: var(--primary);
}
.header-cta { margin-left: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  line-height: 1;
  white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); color: #fff; }
.btn-accent:active { transform: translateY(0); }
.btn-accent:disabled { background: #E2ECF2; color: #A8BCC8; box-shadow: none; transform: none; cursor: not-allowed; }
.btn-ghost { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-ghost:hover { background: var(--primary-tint); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.btn-blue { background: var(--primary); color: #fff; }
.btn-blue:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); color: #fff; }
.btn-sm { height: 40px; padding: 0 22px; font-size: 14px; }
.btn-lg { height: 52px; padding: 0 36px; font-size: 16px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; border-radius: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 80px 0 96px;
  background: url('/assets/images/backpic/back-1.png') no-repeat center / cover;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.93);
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.hero-title {
  font-size: 44px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.02em;
  margin-top: 16px;
}
.hero-sub {
  font-size: 16px;
  color: var(--text-body);
  margin-top: 20px;
  max-width: 520px;
  line-height: 1.8;
}
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.badge-accent { background: var(--accent); color: #fff; }
.badge-blue { background: var(--primary-tint); color: var(--primary-dark); }
.badge-blue i { color: var(--primary); }
.hero-cta { display: flex; gap: 16px; margin-top: 36px; flex-wrap: wrap; }
.hero-right { position: relative; }
.hero-card {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #fff;
  border: 1px solid var(--border);
}
.hero-card img { width: 100%; height: 420px; object-fit: cover; }
.hero-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}
.hero-note i { color: var(--accent); margin-right: 4px; }

/* ===== Stats ===== */
.stats-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
  padding: 36px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; position: relative; }
.stat-item::after {
  content: '';
  width: 1px;
  height: 40px;
  background: var(--border);
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
}
.stat-item:last-child::after { display: none; }
.stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  font-family: "DIN Alternate", "Roboto", Arial, sans-serif;
  letter-spacing: 1px;
  line-height: 1.2;
}
.stat-number span { font-size: 18px; font-weight: 600; margin-left: 2px; }
.stat-label { margin-top: 6px; font-size: 14px; color: var(--text-muted); }

/* ===== Agenda Timeline ===== */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 13px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: var(--line-timeline);
}
.timeline-item {
  position: relative;
  margin-bottom: 28px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  transition: all var(--transition);
}
.timeline-item:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 34px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 5px rgba(44,110,145,.15);
}
.timeline-item:last-child { margin-bottom: 0; }
.tl-head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 10px; }
.tl-time {
  font-family: "DIN Alternate", "Roboto", monospace;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  background: var(--primary-tint);
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: .02em;
}
.tl-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  border: 1px solid rgba(217,130,43,.4);
  background: rgba(217,130,43,.08);
  padding: 2px 10px;
  border-radius: 999px;
}
.tl-title { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.tl-desc { font-size: 14px; color: var(--text-body); line-height: 1.7; }

/* ===== Speakers ===== */
.highlights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.hl-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: all var(--transition);
}
.hl-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.hl-num {
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
  font-family: "DIN Alternate", "Roboto", sans-serif;
  opacity: .85;
}
.hl-text { margin-top: 12px; font-size: 16px; font-weight: 600; color: var(--text); }
.hl-desc { margin-top: 6px; font-size: 14px; color: var(--text-muted); line-height: 1.7; }

.speakers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.speaker-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.speaker-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.speaker-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--primary-tint);
}
.speaker-name { font-size: 17px; font-weight: 600; color: var(--text); }
.speaker-role { font-size: 13px; color: var(--accent); margin-top: 2px; }
.speaker-bio { font-size: 13px; color: var(--text-muted); margin-top: 10px; line-height: 1.6; }

/* ===== Tickets ===== */
.tickets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: center; }
.ticket-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px 28px 32px;
  text-align: center;
  transition: all var(--transition);
}
.ticket-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.ticket-card.featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-12px);
  padding-top: 48px;
}
.ticket-card.featured:hover { transform: translateY(-16px); }
.ticket-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 18px;
  border-radius: 999px;
  letter-spacing: .05em;
}
.ticket-name { font-size: 18px; font-weight: 600; color: var(--text); }
.ticket-price {
  font-size: 40px;
  font-weight: 700;
  color: var(--accent);
  margin: 12px 0 4px;
  font-family: "DIN Alternate", "Roboto", sans-serif;
  line-height: 1.2;
}
.ticket-price small { font-size: 14px; font-weight: 500; color: var(--text-muted); }
.ticket-note { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.ticket-features { text-align: left; margin-bottom: 28px; }
.ticket-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-body);
  padding: 7px 0;
  line-height: 1.5;
}
.ticket-features li i {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  margin-top: 2px;
  flex-shrink: 0;
}
.ticket-features li.muted i { background: #E8ECEF; color: var(--text-muted); }
.ticket-card .btn { width: 100%; }
.muted { color: var(--text-muted) !important; }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.open { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  transition: all var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 14px;
  transition: all var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-icon { background: var(--accent); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  padding: 0 28px;
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 400px; padding: 0 28px 22px; }

/* ===== News ===== */
.news-section { background: #fff; }
.news-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 36px; }
.news-more { font-size: 14px; font-weight: 500; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-more i { transition: transform var(--transition); }
.news-more:hover i { transform: translateX(4px); }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.news-card {
  display: flex;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 18px;
  transition: all var(--transition);
  color: var(--text);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--primary); }
.news-thumb {
  width: 200px;
  height: 130px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--primary-tint);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-body { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.news-badge {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  width: fit-content;
  margin-bottom: 8px;
}
.news-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-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: 10px;
  flex: 1;
}
.news-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.news-meta time { font-size: 12px; color: var(--text-muted); font-family: "DIN Alternate", "Roboto", monospace; }
.news-more-link { font-size: 13px; color: var(--primary); font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.news-empty {
  grid-column: 1 / -1;
  min-height: 240px;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  background: var(--bg);
}
.news-empty i { font-size: 40px; color: #C4D4DE; }
.news-empty p { font-size: 15px; }

/* ===== CTA / Signup ===== */
.cta-section {
  background: var(--primary-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  z-index: 1;
}
.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') no-repeat center / cover;
  opacity: .06;
}
.cta-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.cta-left h2 { color: #fff; font-size: 32px; font-weight: 700; margin-bottom: 16px; }
.cta-left h2 span { color: var(--accent); }
.cta-left p { color: rgba(255,255,255,.75); font-size: 15px; margin-bottom: 32px; max-width: 440px; }
.cta-contact { display: grid; gap: 14px; }
.cta-contact-item { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.85); font-size: 14px; }
.cta-contact-item i {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 15px;
  flex-shrink: 0;
}
.signup-card {
  background: #fff;
  border-radius: 16px;
  padding: 36px;
  box-shadow: 0 20px 50px rgba(0,0,0,.2);
}
.signup-card h3 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.signup-card .signup-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-label .req { color: var(--error); margin-left: 2px; }
.form-control {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid #D5E4EE;
  border-radius: var(--radius-input);
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: all var(--transition);
  appearance: none;
}
.form-control::placeholder { color: #A8BCC8; }
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(44,110,145,.15);
}
.form-control.error { border-color: var(--error); }
.form-control.error:focus { box-shadow: 0 0 0 3px rgba(192,57,43,.15); }
.form-select-wrap { position: relative; }
.form-select-wrap::after {
  content: '\f078';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 12px;
  color: var(--text-muted);
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.form-select { padding-right: 40px; cursor: pointer; }
.error-msg { font-size: 12px; color: var(--error); margin-top: 4px; display: none; }
.error-msg.show { display: block; }
.success-tip {
  background: var(--success-tint);
  color: var(--success);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 18px;
  display: none;
}
.success-tip.show { display: block; }
.form-submit { width: 100%; margin-top: 8px; }
.form-privacy { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 12px; line-height: 1.6; }

/* ===== Footer ===== */
.site-footer {
  background: #162A36;
  color: rgba(255,255,255,.7);
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr .9fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text em { color: var(--accent); }
.footer-brand p { margin-top: 16px; line-height: 1.8; font-size: 13px; color: rgba(255,255,255,.55); max-width: 260px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: grid;
  place-items: center;
  color: rgba(255,255,255,.7);
  font-size: 15px;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,.6); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; color: rgba(255,255,255,.6); font-size: 14px; }
.footer-contact i { color: var(--accent); margin-top: 4px; font-size: 13px; width: 16px; }
.footer-qr {
  width: 110px;
  height: 110px;
  border-radius: 12px;
  background: #fff;
  padding: 6px;
  display: block;
  margin-top: 6px;
}
.footer-qr img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.5); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-wrap { display: none; }
  .nav-wrap.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 30px rgba(23,44,58,.08);
    align-items: stretch;
    gap: 4px;
  }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; }
  .main-nav a { border-radius: 10px; padding: 12px 16px; }
  .main-nav a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { margin-left: auto; }
  .nav-wrap.open .header-cta { margin-left: 0; margin-top: 12px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 38px; }
  .hero-card img { height: 340px; }
  .tickets-grid { grid-template-columns: 1fr; gap: 32px; }
  .ticket-card.featured { transform: translateY(0); }
  .ticket-card.featured:hover { transform: translateY(-4px); }
  .speakers-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .stat-item::after { display: none; }
  .news-card { flex-direction: column; }
  .news-thumb { width: 100%; height: 160px; }
}

@media (max-width: 768px) {
  .section { padding: var(--space-sec-md) 0; }
  .hero { padding: 48px 0 64px; }
  .hero-title { font-size: 32px; }
  .highlights-grid { grid-template-columns: 1fr; }
  .speakers-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section { padding: 48px 0; }
  .signup-card { padding: 28px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { padding-left: 32px; }
  .timeline-item { padding: 20px; }
  .timeline-item::before { left: -27px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a { padding: 0 20px; }
  .faq-item.open .faq-a { padding: 0 20px 18px; }
  .hero-card img { height: 260px; }
  .section-head h2 { font-size: 26px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 26px; }
  .tickets-grid { grid-template-columns: 1fr; }
  .speakers-grid { grid-template-columns: 1fr; }
  .highlight-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 24px; }
  .timeline::before { left: 8px; }
  .timeline-item::before { left: -22px; width: 12px; height: 12px; }
  .news-more { display: none; }
  .cta-left h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .site-header .btn-sm { display: none; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --bg: #F5F9FC;
            --card: #FFFFFF;
            --primary: #2C6E91;
            --primary-dark: #1E4F6D;
            --primary-tint: #EAF2F7;
            --accent: #D9822B;
            --accent-dark: #b96e1f;
            --text-heading: #223B4A;
            --text-body: #4A6372;
            --text-muted: #7C93A1;
            --border: #E2ECF2;
            --success: #2E7D5B;
            --error: #C0392B;
            --radius-card: 16px;
            --radius-input: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 2px rgba(23, 44, 58, .05), 0 10px 30px rgba(23, 44, 58, .07);
            --shadow-hover: 0 2px 4px rgba(23, 44, 58, .06), 0 18px 44px rgba(23, 44, 58, .12);
            --container: 1200px;
            --gap: 24px;
            --space-section: 96px;
            --transition: .25s ease;
            --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "DIN Alternate", "Roboto", "Helvetica Neue", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.8;
            background: var(--bg);
            color: var(--text-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

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

        /* ===== 按钮体系 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

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

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            text-decoration: none;
        }

        .btn-accent:active {
            transform: translateY(1px);
        }

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

        .btn-ghost:hover {
            background: var(--primary-tint);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-sm {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }

        .btn:disabled {
            background: var(--border);
            color: #A8BCC8;
            box-shadow: none;
            cursor: not-allowed;
            transform: none;
        }

        .btn:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(44, 110, 145, .3);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(23, 44, 58, .06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--text-heading);
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            text-decoration: none;
            color: var(--text-heading);
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            letter-spacing: .02em;
        }

        .logo-text em {
            font-style: normal;
            font-size: 12px;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: 6px;
            padding: 0 5px;
            margin-left: 4px;
            vertical-align: 4px;
            font-weight: 500;
            line-height: 1.6;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 18px;
        }

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

        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            color: var(--text-body);
            position: relative;
            transition: background var(--transition), color var(--transition);
        }

        .main-nav a:hover {
            background: var(--primary-tint);
            color: var(--primary-dark);
            text-decoration: none;
        }

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

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .header-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: border-color var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary-dark);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

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

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Banner ===== */
        .banner {
            position: relative;
            padding: 120px 0 80px;
            background: linear-gradient(180deg, rgba(245, 249, 252, .92) 0%, rgba(245, 249, 252, .65) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            text-align: center;
            border-bottom: 1px solid var(--border);
        }

        .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 18px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: .06em;
        }

        .banner-eyebrow {
            font-size: 13px;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .banner-eyebrow::before {
            content: "";
            width: 16px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
        }

        .banner-title {
            font-size: 52px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 20px;
            letter-spacing: .02em;
        }

        .banner-title span {
            color: var(--primary);
        }

        .banner-desc {
            max-width: 720px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
        }

        .banner-desc strong {
            color: var(--primary-dark);
            font-weight: 600;
        }

        /* ===== 亮点列表 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

        .feature-item {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .feature-num {
            font-family: var(--font-mono);
            font-size: 64px;
            line-height: 1;
            font-weight: 800;
            color: var(--accent);
            opacity: .25;
            display: block;
            margin-bottom: 18px;
        }

        .feature-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        .feature-text {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
        }

        /* ===== 图文交替块 ===== */
        .split-wrapper {
            padding: var(--space-section) 0;
        }

        .split-wrapper:nth-of-type(even) {
            background: var(--card);
        }

        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .split-block.reverse .split-media {
            order: 2;
        }

        .split-block.reverse .split-content {
            order: 1;
        }

        .split-media {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            line-height: 0;
        }

        .split-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .split-media img:hover {
            transform: scale(1.02);
        }

        .split-media img.media-a {
            object-position: 60% 40%;
        }

        .split-media img.media-b {
            object-position: 40% 55%;
        }

        .split-media img.media-c {
            object-position: 50% 35%;
        }

        .split-content {
            padding: 20px 0;
        }

        .split-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-tint);
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: .04em;
        }

        .split-title {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
        }

        .split-desc {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 20px;
        }

        .split-list {
            margin-bottom: 24px;
        }

        .split-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            font-size: 15px;
            color: var(--text-body);
        }

        .split-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 5px;
        }

        .split-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
        }

        .split-link:hover {
            color: var(--accent);
            text-decoration: none;
        }

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

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-eyebrow {
            font-size: 13px;
            letter-spacing: .12em;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .section-eyebrow::before {
            content: "";
            width: 16px;
            height: 2px;
            background: var(--accent);
        }

        .section-head h2 {
            font-size: 32px;
            line-height: 1.4;
            color: var(--text-heading);
            font-weight: 700;
        }

        .section-head p {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: 15px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

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

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .faq-item.active .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-button {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-tint);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-style: normal;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .faq-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-panel-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
        }

        /* ===== 入口卡 ===== */
        .entry-section {
            padding: var(--space-section) 0;
            background: var(--card);
        }

        .entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
            margin-bottom: 48px;
        }

        .entry-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

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

        .entry-card .entry-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-tint);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .entry-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }

        .entry-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 20px;
        }

        .entry-card .btn {
            margin-top: auto;
        }

        /* ===== CTA 深色带 ===== */
        .cta-bar {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #16394d 100%);
            border-radius: var(--radius-card);
            padding: 52px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .cta-bar::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
        }

        .cta-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
        }

        .cta-bar .btn-accent {
            flex-shrink: 0;
            height: 52px;
            padding: 0 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #16394d;
            color: rgba(255, 255, 255, .7);
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

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

        .footer-brand .logo .logo-mark {
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }

        .footer-brand .logo-text em {
            border-color: var(--accent);
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .8);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            text-decoration: none;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .04em;
        }

        .footer-links li,
        .footer-contact li {
            padding: 5px 0;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
            text-decoration: none;
        }

        .footer-contact {
            font-size: 14px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .7);
        }

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

        .footer-qr {
            margin-top: 16px;
            width: 96px;
            height: 96px;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .2);
            background: #fff;
            padding: 4px;
        }

        .footer-qr img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 72px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-wrap {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(23, 44, 58, .08);
                display: none;
                z-index: 99;
            }
            .nav-wrap.open {
                display: flex;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .main-nav a {
                display: block;
                padding: 12px 16px;
                border-radius: 10px;
            }
            .main-nav a.active::after {
                left: 16px;
                transform: none;
                bottom: auto;
                width: 6px;
                height: 20px;
            }
            .header-cta {
                margin-top: 14px;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .banner-title {
                font-size: 40px;
            }
            .split-block {
                gap: 40px;
            }
            .split-title {
                font-size: 26px;
            }
            .cta-bar {
                padding: 40px 36px;
                flex-direction: column;
                text-align: center;
            }
            .cta-bar .btn-accent {
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }
            .banner {
                padding: 80px 0 56px;
            }
            .banner-title {
                font-size: 30px;
            }
            .banner-desc {
                font-size: 15px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .split-block {
                grid-template-columns: 1fr;
            }
            .split-block.reverse .split-media {
                order: 1;
            }
            .split-block.reverse .split-content {
                order: 2;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .cta-text h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-text {
                font-size: 18px;
            }
            .banner-title {
                font-size: 26px;
            }
            .faq-button {
                font-size: 15px;
            }
            .feature-item {
                padding: 28px 20px;
            }
            .cta-bar {
                padding: 32px 20px;
            }
        }

/* roulang page: category2 */
:root{
  --page-bg:#F5F9FC;
  --card-bg:#FFFFFF;
  --primary:#2C6E91;
  --primary-dark:#1E4F6D;
  --primary-tint:#EAF2F7;
  --accent:#D9822B;
  --accent-dark:#B56A1E;
  --text-heading:#223B4A;
  --text-body:#4A6372;
  --text-muted:#7C93A1;
  --border:#E2ECF2;
  --border-light:#D5E4EE;
  --success:#2E7D5B;
  --error:#C0392B;
  --radius-card:16px;
  --radius-input:10px;
  --radius-btn:999px;
  --shadow-card:0 1px 2px rgba(23,44,58,.05),0 10px 30px rgba(23,44,58,.07);
  --shadow-hover:0 2px 4px rgba(23,44,58,.06),0 18px 44px rgba(23,44,58,.12);
  --transition:all .25s ease;
  --container-w:1200px;
  --spacing-xl:96px;
  --spacing-lg:64px;
  --spacing-md:48px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Roboto",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-cn);background:var(--page-bg);color:var(--text-body);font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--primary-dark);text-decoration:none;}
ul,ol{list-style:none;}
.container{max-width:var(--container-w);margin:0 auto;padding:0 24px;}
.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:none;cursor:pointer;transition:var(--transition);gap:8px;white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--primary);}
.btn-ghost:hover{background:var(--primary-tint);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 22px;font-size:14px;}
.btn:focus-visible{outline:3px solid rgba(44,110,145,.35);outline-offset:2px;}
.section{padding:var(--spacing-xl) 0;}
.section-alt{background:var(--card-bg);}
.eyebrow{display:flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--primary);font-weight:600;text-transform:uppercase;}
.eyebrow::before{content:"";display:block;width:16px;height:2px;background:var(--accent);}
.section-title{font-size:32px;line-height:1.3;color:var(--text-heading);font-weight:700;margin-top:12px;margin-bottom:16px;}
.section-sub{font-size:16px;color:var(--text-muted);max-width:640px;}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:var(--transition);}
.site-header.scrolled{box-shadow:0 4px 20px rgba(23,44,58,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 4px 12px rgba(44,110,145,.3);}
.logo-text{font-size:19px;font-weight:800;color:var(--text-heading);letter-spacing:.02em;line-height:1.1;display:flex;flex-direction:column;}
.logo-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--accent);letter-spacing:.08em;line-height:1;margin-top:2px;}
.nav-wrap{display:flex;align-items:center;gap:20px;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{display:inline-block;padding:8px 16px;border-radius:var(--radius-btn);font-size:14px;font-weight:500;color:var(--text-body);position:relative;transition:var(--transition);}
.main-nav a:hover{background:var(--primary-tint);color:var(--primary-dark);}
.main-nav a.active{color:var(--primary);font-weight:600;}
.main-nav a.active::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:4px;border-radius:4px;background:var(--accent);}
.header-cta{margin-left:4px;}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:transparent;border:none;cursor:pointer;padding:8px;border-radius:8px;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-heading);border-radius:2px;transition:var(--transition);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.page-banner{position:relative;padding:80px 0 72px;background:linear-gradient(180deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.88) 60%,rgba(245,249,252,.95) 100%),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border-bottom:1px solid var(--border);}
.banner-inner{position:relative;z-index:2;text-align:center;max-width:800px;margin:0 auto;}
.banner-inner .eyebrow{justify-content:center;margin-bottom:16px;}
.banner-inner .eyebrow::before{display:none;}
.banner-inner .eyebrow{font-size:13px;}
.banner-title{font-size:44px;line-height:1.25;color:var(--text-heading);font-weight:800;margin-bottom:16px;letter-spacing:.02em;}
.banner-title span{color:var(--primary);}
.banner-desc{font-size:16px;color:var(--text-body);line-height:1.9;max-width:620px;margin:0 auto;}
.feature-block{padding:var(--spacing-xl) 0;}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feature-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);position:relative;}
.feature-media img{width:100%;height:360px;object-fit:cover;transition:transform .5s ease;}
.feature-media:hover img{transform:scale(1.04);}
.feature-media::after{content:"";position:absolute;inset:0;border-radius:var(--radius-card);box-shadow:inset 0 0 0 1px rgba(23,44,58,.04);}
.feature-content .eyebrow{margin-bottom:14px;}
.feature-content h2{font-size:30px;line-height:1.35;color:var(--text-heading);font-weight:700;margin-bottom:20px;}
.feature-content p{font-size:15px;line-height:1.95;color:var(--text-body);margin-bottom:16px;}
.feature-list{margin-top:20px;}
.feature-list li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid rgba(226,236,242,.6);font-size:15px;color:var(--text-body);}
.feature-list li:last-child{border-bottom:none;}
.feature-list li i{color:var(--accent);font-size:15px;margin-top:4px;flex-shrink:0;}
.highlight-block{background:var(--card-bg);padding:var(--spacing-xl) 0;}
.highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:48px;}
.highlight-card{background:var(--page-bg);border-radius:var(--radius-card);padding:36px 28px;border:1px solid var(--border);transition:var(--transition);position:relative;}
.highlight-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.highlight-num{font-family:var(--font-num);font-size:64px;font-weight:800;color:var(--accent);line-height:1;opacity:.85;margin-bottom:16px;}
.highlight-card h3{font-size:20px;color:var(--text-heading);font-weight:700;margin-bottom:12px;}
.highlight-card p{font-size:14px;line-height:1.85;color:var(--text-muted);}
.faq-block{padding:var(--spacing-xl) 0;}
.faq-wrap{max-width:860px;margin:48px auto 0;}
.faq-item{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-card);margin-bottom:16px;overflow:hidden;transition:var(--transition);}
.faq-item.open{border-color:var(--primary);box-shadow:var(--shadow-card);}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 28px;cursor:pointer;transition:var(--transition);}
.faq-question h3{font-size:16px;font-weight:600;color:var(--text-heading);line-height:1.5;}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--primary-tint);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;transition:var(--transition);}
.faq-item.open .faq-icon{background:var(--accent);color:#fff;transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-answer-inner{padding:0 28px 22px;font-size:14px;line-height:1.9;color:var(--text-body);border-top:1px solid rgba(226,236,242,.6);padding-top:16px;}
.entry-block{background:var(--card-bg);padding:var(--spacing-lg) 0 96px;}
.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px;}
.entry-card{border:1px solid var(--border);border-radius:var(--radius-card);padding:32px;transition:var(--transition);position:relative;overflow:hidden;}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.entry-card h3{font-size:20px;color:var(--text-heading);font-weight:700;margin-bottom:10px;}
.entry-card p{font-size:14px;color:var(--text-muted);line-height:1.85;margin-bottom:20px;}
.entry-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;}
.entry-link i{transition:transform .25s ease;}
.entry-card:hover .entry-link i{transform:translateX(4px);}
.cta-strip{background:var(--primary-dark);position:relative;overflow:hidden;padding:48px 0;}
.cta-strip::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.08;}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-text h2{color:#fff;font-size:28px;font-weight:700;margin-bottom:8px;}
.cta-text p{color:rgba(255,255,255,.85);font-size:14px;}
.cta-strip .btn-accent{background:var(--accent);color:#fff;}
.cta-strip .btn-accent:hover{background:#E8963F;}
.site-footer{background:#16303F;color:#A8BCC8;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:48px;}
.footer-brand p{line-height:1.8;color:#8FA9B8;margin:16px 0 20px;font-size:14px;max-width:300px;}
.footer-brand .logo-text{color:#fff;}
.footer-social{display:flex;gap:12px;}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;transition:var(--transition);}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-2px);}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;}
.footer-links li,.footer-contact li{margin-bottom:12px;}
.footer-links a{color:#A8BCC8;transition:var(--transition);}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact li{display:flex;align-items:center;gap:10px;color:#A8BCC8;}
.footer-contact i{color:var(--accent);width:16px;text-align:center;}
.footer-qr{margin-top:20px;width:100px;height:100px;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.1);}
.footer-qr img{width:100%;height:100%;object-fit:cover;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;color:#7C93A1;font-size:13px;}
.footer-bottom p{color:#7C93A1;}
@media(max-width:1024px){
  .nav-wrap{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px 24px 24px;box-shadow:0 16px 32px rgba(23,44,58,.12);display:none;border-bottom:1px solid var(--border);max-height:calc(100vh - 72px);overflow-y:auto;}
  .nav-wrap.open{display:flex;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{display:block;padding:12px 16px;border-radius:10px;}
  .main-nav a.active::after{display:none;}
  .main-nav a.active{background:var(--primary-tint);}
  .header-cta{width:100%;margin:12px 0 0;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .feature-grid{grid-template-columns:1fr;gap:32px;}
  .feature-media img{height:320px;}
  .highlight-grid{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .section{padding:var(--spacing-lg) 0;}
  .banner-title{font-size:36px;}
}
@media(max-width:768px){
  .container{padding:0 16px;}
  .header-inner{height:64px;}
  .logo-text{font-size:17px;}
  .section{padding:var(--spacing-md) 0;}
  .section-title{font-size:26px;}
  .banner-title{font-size:30px;}
  .banner-desc{font-size:15px;}
  .feature-grid{gap:24px;}
  .feature-media img{height:260px;}
  .feature-content h2{font-size:26px;}
  .highlight-grid{gap:20px;}
  .highlight-card{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .faq-question{padding:18px 20px;}
  .faq-answer-inner{padding:0 20px 20px;}
  .entry-card{padding:24px;}
}
@media(max-width:520px){
  .banner-title{font-size:26px;}
  .banner-desc{font-size:14px;}
  .feature-media img{height:220px;}
  .btn{padding:0 20px;font-size:14px;}
  .section-title{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root {
  --bg: #F5F9FC;
  --card: #FFFFFF;
  --primary: #2C6E91;
  --primary-dark: #1E4F6D;
  --primary-tint: #EAF2F7;
  --accent: #D9822B;
  --accent-dark: #B56D1D;
  --text: #223B4A;
  --text-body: #4A6372;
  --text-muted: #7C93A1;
  --border: #E2ECF2;
  --border-strong: #D5E4EE;
  --success: #2E7D5B;
  --error: #C0392B;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(23,44,58,.05), 0 10px 30px rgba(23,44,58,.07);
  --shadow-hover: 0 2px 4px rgba(23,44,58,.06), 0 18px 44px rgba(23,44,58,.12);
  --transition: .25s ease;
  --container: 1200px;
  --gutter: 24px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  --font-num: "DIN Alternate", "Roboto", "SF Pro Display", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none !important;
  line-height: 1;
  white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(217, 130, 43, .25); }
.btn-accent:active { transform: translateY(0); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover { background: var(--primary-tint); color: var(--primary-dark); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn:focus-visible { outline: 3px solid rgba(44, 110, 145, .3); outline-offset: 2px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(23, 44, 58, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none !important; flex-shrink: 0; }
.logo-mark {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 6px 16px rgba(44, 110, 145, .25);
}
.logo-text { font-size: 22px; font-weight: 700; color: var(--primary-dark); letter-spacing: .02em; line-height: 1; }
.logo-text em { font-style: normal; font-size: 13px; font-weight: 500; color: var(--accent); margin-left: 4px; }
.nav-wrap { display: flex; align-items: center; gap: 20px; }
.main-nav ul { display: flex; gap: 6px; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  transition: all var(--transition);
  position: relative;
  text-decoration: none;
}
.main-nav a:hover { background: var(--primary-tint); color: var(--primary-dark); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 20px; height: 4px;
  border-radius: var(--radius-pill);
  background: var(--primary);
}
.header-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: none;
  background: var(--primary-tint);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: background var(--transition);
}
.nav-toggle:hover { background: #dbe9f1; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--primary-dark); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.page-main { min-height: 70vh; }
.breadcrumb-wrap { padding: 24px 0 8px; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); text-decoration: none; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--primary); font-weight: 600; margin: 0 4px; }
.breadcrumb .current { color: var(--text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 320px; }

.article-section { padding: 24px 0 32px; }
.article-paper {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 56px 64px;
  max-width: 1000px;
  margin: 0 auto;
}
.article-header { margin-bottom: 40px; }
.article-category {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  letter-spacing: .04em;
}
.article-header h1 {
  font-size: 34px;
  line-height: 1.35;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .01em;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  align-items: center;
  margin-bottom: 24px;
}
.article-meta i { margin-right: 4px; color: var(--primary); }
.article-meta .dot { margin: 0 6px; color: #c2d4de; }
.article-summary {
  background: var(--bg);
  border-left: 3px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}
.article-prose { max-width: 760px; margin: 0 auto; }
.article-prose p { margin-bottom: 24px; font-size: 16px; line-height: 1.9; color: var(--text-body); }
.article-prose h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 48px 0 20px;
  line-height: 1.4;
  position: relative;
  padding-left: 16px;
}
.article-prose h2::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 4px; height: 56%;
  border-radius: 4px;
  background: var(--primary);
}
.article-prose h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 36px 0 14px;
  line-height: 1.5;
}
.article-prose a { border-bottom: 1px solid rgba(44, 110, 145, .3); text-decoration: none; }
.article-prose a:hover { border-bottom-color: transparent; color: var(--accent-dark); }
.article-prose ul, .article-prose ol { margin: 0 0 24px; padding-left: 24px; }
.article-prose ul li { position: relative; padding-left: 8px; margin-bottom: 10px; }
.article-prose ul li::before { content: ""; position: absolute; left: -18px; top: 11px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.article-prose ol { list-style: decimal; }
.article-prose ol li { margin-bottom: 10px; padding-left: 4px; }
.article-prose blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-tint);
  padding: 20px 24px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
}
.article-prose blockquote p:last-child { margin-bottom: 0; }
.article-prose img { border-radius: 12px; margin: 28px auto; box-shadow: var(--shadow); }
.article-prose figure { margin: 28px 0; }
.article-prose figure img { margin: 0 auto; }
.article-prose figcaption { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 8px; }
.article-prose table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 14px; }
.article-prose th { background: var(--primary-tint); color: var(--text); font-weight: 600; text-align: left; padding: 12px 14px; border: 1px solid var(--border); }
.article-prose td { padding: 10px 14px; border: 1px solid var(--border); color: var(--text-body); }
.article-prose hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }

.article-footer { max-width: 760px; margin: 48px auto 0; padding-top: 32px; border-top: 1px solid var(--border); }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .03em;
  transition: background var(--transition), color var(--transition);
}
.tag:hover { background: var(--primary); color: #fff; }
.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pn-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  text-decoration: none !important;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  display: block;
}
.pn-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.pn-label { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); font-weight: 500; margin-bottom: 8px; letter-spacing: .06em; }
.pn-label i { color: var(--primary); font-size: 11px; }
.pn-title { font-size: 15px; font-weight: 600; color: var(--text); display: block; line-height: 1.5; }
.pn-card:hover .pn-title { color: var(--primary); }
.pn-next .pn-label { justify-content: flex-end; }

.related-section { padding: 56px 0 72px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 32px; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.eyebrow::before { content: ""; width: 16px; height: 2px; background: var(--accent); border-radius: 2px; display: inline-block; }
.section-title { font-size: 28px; font-weight: 700; color: var(--text); line-height: 1.4; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none !important;
  color: var(--text-body);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.related-card-cover { aspect-ratio: 16 / 10; overflow: hidden; }
.related-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-card-cover img { transform: scale(1.04); }
.related-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.related-card-cat {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  align-self: flex-start;
  margin-bottom: 12px;
  letter-spacing: .04em;
}
.related-card-title { font-size: 17px; font-weight: 600; color: var(--text); line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card:hover .related-card-title { color: var(--primary); }
.related-card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-meta { margin-top: auto; font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.related-card-meta i { color: var(--primary); font-size: 12px; }

.article-cta { background: var(--primary-dark); border-radius: 16px; margin: 0 0 72px; padding: 40px 48px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; position: relative; overflow: hidden; }
.article-cta::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat; opacity: .06; pointer-events: none; }
.article-cta-text { position: relative; z-index: 1; }
.article-cta-text h3 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.article-cta-text p { color: rgba(255, 255, 255, .75); font-size: 15px; line-height: 1.7; max-width: 560px; }
.article-cta .btn-accent { position: relative; z-index: 1; }

.not-found-section { padding: 80px 0 100px; }
.not-found-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 56px 40px;
  text-align: center;
}
.not-found-card i { font-size: 48px; color: var(--primary); margin-bottom: 20px; opacity: .6; }
.not-found-card h1 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.not-found-card p { color: var(--text-muted); font-size: 15px; margin-bottom: 28px; }

.site-footer { background: #17394d; color: rgba(255, 255, 255, .75); padding: 64px 0 0; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand .logo-mark { background: rgba(255, 255, 255, .12); color: #fff; box-shadow: none; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text em { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; color: rgba(255, 255, 255, .6); max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255, 255, 255, .7);
  font-size: 16px;
  transition: all var(--transition);
  text-decoration: none;
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; letter-spacing: .05em; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255, 255, 255, .65); font-size: 14px; text-decoration: none; transition: color var(--transition), padding-left var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .65); margin-bottom: 12px; }
.footer-contact i { width: 20px; color: var(--accent); font-size: 13px; }
.footer-qr { margin-top: 16px; width: 92px; height: 92px; background: #fff; border-radius: 10px; padding: 6px; }
.footer-qr img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, .4); }
.footer-bottom a { color: rgba(255, 255, 255, .6); text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  .nav-wrap {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(23, 44, 58, .08);
    padding: 20px var(--gutter) 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    transform: translateY(-140%);
    opacity: 0;
    pointer-events: none;
    transition: transform .35s ease, opacity .25s ease;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    z-index: 99;
  }
  .nav-wrap.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav ul { flex-direction: column; gap: 2px; width: 100%; }
  .main-nav a { width: 100%; justify-content: flex-start; padding: 12px 16px; font-size: 16px; border-radius: 10px; }
  .main-nav a.active::after { left: 16px; transform: none; width: 4px; height: 20px; top: 50%; margin-top: -10px; border-radius: 4px; }
  .header-cta { width: 100%; justify-content: center; }
  .article-paper { padding: 40px 32px; }
  .related-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .related-card:last-child { grid-column: span 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .article-header h1 { font-size: 26px; }
  .article-paper { padding: 32px 20px; border-radius: 12px; }
  .article-prose h2 { font-size: 24px; }
  .article-prose p { font-size: 15px; }
  .prev-next { grid-template-columns: 1fr; }
  .article-cta { padding: 32px 24px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card:last-child { grid-column: span 1; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { max-width: 100%; }
  .breadcrumb .current { max-width: 180px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .nav-wrap { top: 64px; }
  .logo-text { font-size: 19px; }
  .article-header h1 { font-size: 22px; line-height: 1.4; }
  .article-meta { font-size: 12px; flex-wrap: wrap; }
  .article-paper { padding: 28px 16px; }
  .article-prose h2 { font-size: 22px; }
  .article-prose h3 { font-size: 18px; }
  .article-cta { padding: 28px 20px; flex-direction: column; align-items: flex-start; gap: 16px; }
  .article-cta-text h3 { font-size: 20px; }
}