/* roulang page: index */
:root {
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --ink-900: #1F2937;
  --ink-600: #5B6472;
  --ink-400: #9AA3B2;
  --brand: #00A9A5;
  --brand-600: #008B87;
  --accent: #7C5CFC;
  --highlight: #FF7F45;
  --border: #E5E9F2;
  --gradient-brand: linear-gradient(135deg, #00A9A5 0%, #7C5CFC 100%);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 4px rgba(15,23,42,0.04), 0 4px 16px rgba(15,23,42,0.05);
  --shadow-md: 0 8px 30px rgba(15,23,42,0.08);
  --shadow-lg: 0 24px 64px rgba(15,23,42,0.16);
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Roboto Condensed", "Barlow Condensed", "Arial Narrow", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--ink-900);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ========== 按钮系统 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,169,165,0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,169,165,0.3); filter: brightness(1.05); }
.btn-primary:focus-visible { outline: 2px solid var(--ink-900); outline-offset: 2px; }
.btn-secondary {
  background: var(--surface);
  color: var(--ink-900);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand-600); transform: translateY(-2px); }
.btn-secondary:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.btn-light {
  background: #fff;
  color: var(--ink-900);
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
}
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.16); }
.btn-full { width: 100%; height: 48px; font-size: 16px; }

/* ========== 导航栏 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 34px; height: 34px; border-radius: 8px; background: var(--gradient-brand); position: relative; flex-shrink: 0; }
.logo-mark::after { content: ""; position: absolute; inset: 8px; border-radius: 4px; background: rgba(255,255,255,0.25); }
.logo-text { display: flex; align-items: flex-start; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 20px; font-weight: 800; color: var(--ink-900); letter-spacing: -0.3px; }
.logo-text small { font-size: 11px; color: var(--ink-400); font-weight: 600; letter-spacing: 2px; margin-top: 2px; transform: scale(0.82); transform-origin: left; }
.main-nav { display: flex; align-items: center; gap: 20px; }
.nav-tabs {
  display: inline-flex;
  background: var(--bg);
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--border);
  gap: 2px;
}
.nav-tab {
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-600);
  border-radius: 10px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav-tab:hover { color: var(--ink-900); background: rgba(0,0,0,0.04); }
.nav-tab.active {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,169,165,0.25);
}
.btn-nav-cta { border-radius: 999px; padding: 9px 22px; font-size: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border-radius: 10px; background: var(--bg); }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink-900); border-radius: 2px; transition: all 0.3s ease; }
.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: 72px 0 0;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(#1F293705 1px, transparent 1px) / 32px 32px,
    radial-gradient(circle at 85% 20%, rgba(124,92,252,0.10), transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(0,169,165,0.08), transparent 50%),
    linear-gradient(135deg, #F8FAFC, #F0F4F8);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 64px;
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-600);
  background: rgba(0,169,165,0.08);
  border: 1px solid rgba(0,169,165,0.18);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--ink-900);
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-600);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-visual img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  aspect-ratio: 4/3;
  object-fit: cover;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 16px -16px -16px 16px;
  border-radius: 20px;
  background: var(--gradient-brand);
  opacity: 0.08;
  z-index: -1;
}
.hero-stats {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
}
.hero-stats-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border-radius: 16px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.stat-badge:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 800;
  color: var(--ink-900);
  line-height: 1;
  letter-spacing: -0.5px;
}
.stat-unit { font-size: 20px; color: var(--accent); font-weight: 700; }
.stat-label { font-size: 14px; color: var(--ink-600); line-height: 1.3; }

/* ========== 通用板块 ========== */
.section { padding: 80px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head h2 { font-size: 34px; font-weight: 800; line-height: 1.2; letter-spacing: -0.3px; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--ink-600); line-height: 1.7; }
.section-head .more-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--brand-600);
}
.section-head .more-link:hover { text-decoration: underline; }

/* ========== 痛点板块 ========== */
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.pain-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  transition: all 0.3s ease;
}
.pain-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(0,169,165,0.3); }
.pain-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(0,169,165,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--brand);
  flex-shrink: 0;
}
.pain-body { flex: 1; }
.pain-index {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-400);
  letter-spacing: 1px;
}
.pain-body p { font-size: 16px; color: var(--ink-900); font-weight: 600; line-height: 1.6; margin-top: 4px; }
.pain-arrow {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-400);
  font-size: 16px;
  transition: all 0.25s ease;
}
.pain-card:hover .pain-arrow { color: #fff; background: var(--gradient-brand); transform: translateX(2px); }

/* ========== CMS最新动态 ========== */
.news-section { background: var(--bg); }
.cms-list {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
}
.cms-item { min-width: 0; }
.cms-featured { grid-row: span 2; }
.cms-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  height: 100%;
}
.cms-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.cms-card-horizontal { flex-direction: row; }
.cms-card-horizontal .cms-thumb { width: 45%; flex-shrink: 0; aspect-ratio: auto; }
.cms-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--gradient-brand); }
.cms-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.cms-card:hover .cms-thumb img { transform: scale(1.04); }
.cms-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--highlight);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.cms-info { padding: 20px 22px; display: flex; flex-direction: column; flex: 1; }
.cms-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-600);
  background: rgba(0,169,165,0.08);
  padding: 3px 10px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 10px;
}
.cms-info h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-900);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cms-info p {
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.cms-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.cms-date {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--ink-400);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.cms-date::before { content: "🗓"; font-family: var(--font-cn); font-size: 12px; }
.cms-link { font-size: 14px; color: var(--brand-600); font-weight: 600; }
.cms-link:hover { text-decoration: underline; }
.cms-empty {
  grid-column: 1 / -1;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  color: var(--ink-400);
}
.cms-empty-icon { font-size: 40px; display: block; margin-bottom: 12px; }
.cms-empty p { font-size: 15px; }

/* ========== 方案卡片区 ========== */
.solutions-section { background: var(--surface); }
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.solution-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.solution-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.solution-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity 0.3s;
}
.solution-card:hover::before { opacity: 1; }
.solution-card.solution-primary {
  background: var(--gradient-brand);
  border: none;
  color: #fff;
}
.solution-card.solution-primary::before { opacity: 0; }
.solution-card.solution-primary .solution-desc,
.solution-card.solution-primary .solution-list li { color: rgba(255,255,255,0.9); }
.solution-card.solution-primary .solution-tag { background: rgba(255,255,255,0.15); color: #fff; }
.solution-center {
  grid-column: 1 / -1;
  max-width: 500px;
  margin: 0 auto;
  width: 100%;
}
.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(0,169,165,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}
.solution-card.solution-primary .solution-icon { background: rgba(255,255,255,0.2); }
.solution-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-600);
  background: rgba(0,169,165,0.08);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.solution-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.solution-desc { font-size: 14px; color: var(--ink-600); margin-bottom: 16px; line-height: 1.6; }
.solution-list { list-style: none; }
.solution-list li {
  font-size: 15px;
  color: var(--ink-900);
  padding: 6px 0 6px 24px;
  position: relative;
  line-height: 1.5;
}
.solution-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  position: absolute;
  left: 0;
  top: 15px;
}
.solution-card.solution-primary .solution-list li::before { background: #fff; }
.solution-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-600);
}
.solution-card.solution-primary .solution-link { color: #fff; text-decoration: underline; }
.solution-link:hover { text-decoration: underline; }

/* ========== 成功数据区 ========== */
.stats-section { padding: 80px 0; }
.stats-panel {
  background: #1F2937;
  border-radius: 24px;
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}
.stats-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(#ffffff06 1px, transparent 1px) / 32px 32px,
    radial-gradient(circle at 85% 20%, rgba(124,92,252,0.25), transparent 45%);
  pointer-events: none;
}
.stats-head { text-align: center; margin-bottom: 40px; position: relative; z-index: 1; }
.stats-head h2 { font-size: 30px; font-weight: 800; color: #F9FAFB; margin-bottom: 8px; }
.stats-head p { font-size: 15px; color: #B0B7C3; }
.stats-grid {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 28px 20px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}
.stat-card:hover { transform: translateY(-3px); background: rgba(255,255,255,0.1); }
.stat-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 4px;
  border-radius: 4px 4px 0 0;
  background: var(--gradient-brand);
  transition: width 0.3s ease;
}
.stat-card:hover::after { width: 100%; }
.stat-card .stat-num {
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -1px;
}
.stat-card .stat-unit { font-size: 20px; color: var(--accent); }
.stat-card .stat-card-label { font-size: 13px; color: #B0B7C3; margin-top: 10px; display: block; }

/* ========== FAQ ========== */
.faq-container { max-width: 920px; margin: 0 auto; }
.faq-container > h2 { text-align: center; font-size: 34px; font-weight: 800; margin-bottom: 40px; letter-spacing: -0.3px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item:hover { border-color: rgba(0,169,165,0.3); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  text-align: left;
  transition: background 0.2s;
}
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--ink-600);
  transition: all 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-icon::before { content: "+"; font-weight: 500; }
.faq-item.open .faq-icon { background: var(--gradient-brand); color: #fff; transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  transition: all 0.35s ease;
  border-top: 0 solid var(--border);
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 16px 24px 20px;
  border-top-width: 1px;
  background: rgba(0,169,165,0.03);
}
.faq-answer p { font-size: 15px; color: var(--ink-600); line-height: 1.75; }

/* ========== CTA ========== */
.cta-section { padding: 0 0 80px; }
.cta-panel {
  background:
    linear-gradient(rgba(23,29,40,0.82), rgba(23,29,40,0.88)),
    url('/assets/images/backpic/back-2.png') center / cover;
  border-radius: 24px;
  padding: 60px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
}
.cta-panel h2 { font-size: 30px; font-weight: 800; color: #F9FAFB; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-panel > p { font-size: 15px; color: #C0C6D0; margin-bottom: 28px; position: relative; z-index: 1; }
.cta-panel .btn { position: relative; z-index: 1; }
.privacy-note { font-size: 12px; color: var(--ink-400); margin-top: 16px; }
.cta-panel .privacy-note { color: #8A93A2; }
.privacy-note a { color: inherit; text-decoration: underline; }
.privacy-note a:hover { color: var(--brand); }

/* ========== 页脚 ========== */
.site-footer {
  background: #171D28;
  color: #B0B7C3;
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .footer-logo { font-size: 22px; font-weight: 800; color: #F9FAFB; display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-brand .footer-logo::before { content: ""; width: 30px; height: 30px; border-radius: 8px; background: var(--gradient-brand); }
.footer-brand p { font-size: 14px; color: #8A93A2; line-height: 1.7; max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #F9FAFB; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; font-size: 14px; color: #B0B7C3; margin-bottom: 10px; line-height: 1.6; }
.footer-col a:hover { color: #fff; }
.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-tags span {
  font-size: 12px;
  color: #B0B7C3;
  background: rgba(255,255,255,0.06);
  padding: 6px 14px;
  border-radius: 999px;
  transition: all 0.2s;
}
.footer-tags span:hover { border-color: var(--brand); color: #fff; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  flex-wrap: wrap;
  font-size: 13px;
  color: #8A93A2;
}
.footer-bottom a { color: #8A93A2; margin-left: 8px; }
.footer-bottom a:hover { color: #fff; }

/* ========== 弹窗 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-card {
  background: var(--surface);
  border-radius: 22px;
  max-width: 480px;
  width: 100%;
  padding: 40px 36px 32px;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--ink-600);
  transition: background 0.2s;
}
.modal-close:hover { background: var(--border); }
.modal-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.modal-card > p { font-size: 14px; color: var(--ink-600); margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-900); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  color: var(--ink-900);
  background: var(--surface);
  transition: all 0.2s;
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(0,169,165,0.15);
}
.form-group textarea { min-height: 80px; }
.modal-card .privacy-note { text-align: center; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero { padding-top: 48px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { order: -1; max-width: 560px; margin: 0 auto; }
  .hero-stats-inner { grid-template-columns: repeat(2, 1fr); }
  .cms-list { grid-template-columns: 1fr; }
  .cms-featured { grid-row: auto; }
  .cms-card-horizontal { flex-direction: column; }
  .cms-card-horizontal .cms-thumb { width: 100%; aspect-ratio: 16/9; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--surface);
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    z-index: 99;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .nav-tabs { flex-direction: column; width: 100%; background: transparent; border: none; gap: 8px; }
  .nav-tab { display: block; width: 100%; text-align: left; padding: 14px 16px; font-size: 16px; }
  .nav-tab.active { background: var(--gradient-brand); color: #fff; }
  .btn-nav-cta { display: inline-flex; margin-top: 8px; width: 100%; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head h2, .faq-container > h2 { font-size: 26px; }
  .hero h1 { font-size: 34px; }
  .hero-inner { padding-bottom: 40px; }
  .hero-stats-inner { grid-template-columns: 1fr; gap: 12px; }
  .pain-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .solution-center { max-width: 100%; }
  .stats-panel { padding: 40px 24px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .cta-panel { padding: 40px 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom .links { margin-top: 8px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .logo-text strong { font-size: 18px; }
  .hero-stats-inner { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero h1 { font-size: 28px; }
  .hero-subtitle { font-size: 15px; }
  .cms-card-horizontal .cms-thumb { width: 100%; }
  .modal-card { padding: 32px 24px 24px; }
}

/* roulang page: article */
:root{
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --ink-900:#1F2937;
  --ink-600:#5B6472;
  --ink-400:#9AA3B2;
  --brand:#00A9A5;
  --brand-600:#008B87;
  --accent:#7C5CFC;
  --highlight:#FF7F45;
  --border:#E5E9F2;
  --gradient-brand:linear-gradient(135deg,#00A9A5 0%,#7C5CFC 100%);
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:999px;
  --shadow-sm:0 1px 4px rgba(15,23,42,0.04),0 4px 16px rgba(15,23,42,0.05);
  --shadow-md:0 8px 30px rgba(15,23,42,0.08);
  --shadow-lg:0 24px 64px rgba(15,23,42,0.16);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Roboto Condensed","Barlow Condensed","Arial Narrow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--bg);color:var(--ink-900);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input,textarea{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:10px 22px;border-radius:12px;transition:all .25s ease;line-height:1.4;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}
.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 14px rgba(0,169,165,0.25)}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,169,165,0.3)}
.btn-secondary{background:var(--surface);border:1px solid var(--border);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-nav-cta{border-radius:999px;padding:8px 20px;font-size:14px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:10px;height:36px;border-radius:4px;background:var(--gradient-brand);flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:20px;font-weight:800;color:var(--ink-900);letter-spacing:-0.3px}
.logo-text small{font-size:12px;font-weight:500;color:var(--brand-600);letter-spacing:2px;margin-top:2px}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:8px;transition:background .2s}
.nav-toggle span{width:22px;height:2px;background:var(--ink-900);border-radius:2px;transition:all .3s}
.nav-toggle:hover{background:var(--bg)}
.main-nav{display:flex;align-items:center;gap:20px}
.nav-tabs{display:inline-flex;background:var(--bg);padding:4px;border-radius:12px;border:1px solid var(--border);gap:2px}
.nav-tab{padding:7px 18px;font-size:14px;font-weight:600;color:var(--ink-600);border-radius:10px;transition:all .25s;white-space:nowrap}
.nav-tab:hover{color:var(--ink-900);background:rgba(255,255,255,0.6)}
.nav-tab.active{background:var(--gradient-brand);color:#fff;box-shadow:var(--shadow-sm)}
@media(max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:68px;left:0;right:0;background:var(--surface);flex-direction:column;align-items:flex-start;padding:20px 24px 28px;box-shadow:var(--shadow-lg);transform:translateY(-120%);transition:transform .35s ease;border-bottom:1px solid var(--border)}
  .main-nav.open{transform:translateY(0)}
  .nav-tabs{flex-direction:column;width:100%;background:transparent;border:none;gap:6px}
  .nav-tab{padding:12px 16px;font-size:15px;border-radius:10px;width:100%;background:var(--bg)}
  .nav-tab.active{box-shadow:var(--shadow-sm)}
  .btn-nav-cta{margin-top:12px;width:100%;justify-content:center}
}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-400);margin:28px 0 24px}
.breadcrumb a{color:var(--ink-400);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--ink-400);opacity:.6}
.breadcrumb .current{color:var(--ink-600);font-weight:500;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:640px){.breadcrumb{font-size:13px;margin-top:20px}}

/* 文章主体 */
.article-page{padding-bottom:60px}
.article-wrapper{max-width:820px;margin:0 auto}
.article-title{font-size:36px;font-weight:800;line-height:1.25;letter-spacing:-0.4px;color:var(--ink-900);margin-bottom:20px}
@media(max-width:640px){.article-title{font-size:26px}}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;padding-bottom:24px;border-bottom:1px solid var(--border);margin-bottom:32px;font-size:14px;color:var(--ink-600)}
.meta-chip{display:inline-flex;align-items:center;background:rgba(0,169,165,0.08);color:var(--brand-600);font-weight:600;font-size:13px;padding:4px 14px;border-radius:999px}
.meta-date,.meta-author,.meta-views{display:inline-flex;align-items:center;gap:6px}
.meta-date::before{content:"📅";font-size:13px}
.meta-author::before{content:"✍️";font-size:13px}
.meta-views{font-family:var(--font-num);font-weight:600;color:var(--ink-400)}
@media(max-width:520px){.article-meta{gap:10px;font-size:13px}}

/* 正文 */
.article-content{font-size:16px;line-height:1.85;color:var(--ink-900)}
.article-content h2{font-size:26px;font-weight:800;color:var(--ink-900);margin:40px 0 18px;padding-left:14px;border-left:4px solid var(--brand);line-height:1.4}
.article-content h3{font-size:20px;font-weight:700;color:var(--ink-900);margin:32px 0 14px;line-height:1.4}
.article-content h4{font-size:17px;font-weight:700;color:var(--ink-900);margin:26px 0 12px}
.article-content p{margin-bottom:1.6em;line-height:1.85}
.article-content strong{color:var(--ink-900);font-weight:700}
.article-content a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;transition:color .2s}
.article-content a:hover{color:var(--brand)}
.article-content blockquote{border-left:4px solid var(--brand);background:rgba(0,169,165,0.05);border-radius:12px;padding:18px 22px;margin:28px 0;color:var(--ink-600);font-size:15px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{max-width:100%;border-radius:16px;border:1px solid var(--border);margin:28px auto;height:auto}
.article-content .wp-caption,.article-content figcaption{font-size:14px;color:var(--ink-400);text-align:center;margin-top:-16px;margin-bottom:28px}
.article-content ul,.article-content ol{margin:18px 0;padding-left:24px}
.article-content ul li,.article-content ol li{margin-bottom:9px;line-height:1.7}
.article-content ul li::marker{color:var(--brand)}
.article-content ol li::marker{color:var(--brand);font-weight:700}
.article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;border-radius:12px;overflow:hidden}
.article-content table th{background:rgba(0,169,165,0.08);color:var(--ink-900);font-weight:700;text-align:left;padding:12px 16px}
.article-content table td{padding:12px 16px;border-top:1px solid var(--border);color:var(--ink-600)}
.article-content code{background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:6px;font-size:14px;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}
.article-content pre{background:#1F2937;color:#E5E9F2;border-radius:12px;padding:20px;overflow-x:auto;margin:28px 0;line-height:1.6}
.article-content pre code{background:transparent;border:none;color:inherit;padding:0;font-size:14px}
@media(max-width:640px){
  .article-content h2{font-size:22px}
  .article-content h3{font-size:18px}
}

/* 标签区 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 40px;padding-top:28px;border-top:1px solid var(--border)}
.article-tags .tag-label{font-size:14px;color:var(--ink-400);font-weight:600;padding:6px 0;margin-right:4px}
.tag-chip{display:inline-flex;align-items:center;font-size:13px;font-weight:500;color:var(--ink-600);background:var(--surface);border:1px solid var(--border);padding:6px 14px;border-radius:999px;transition:all .25s}
.tag-chip:hover{background:var(--gradient-brand);color:#fff;border-color:transparent;transform:translateY(-1px)}
@media(max-width:640px){.article-tags{gap:8px}}

/* 相关推荐 */
.related-section{margin-top:16px}
.related-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.related-head h2{font-size:24px;font-weight:800;color:var(--ink-900);position:relative;padding-left:14px}
.related-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:22px;border-radius:3px;background:var(--gradient-brand)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease;display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-cat{display:inline-flex;align-self:flex-start;font-size:12px;font-weight:600;color:var(--accent);background:rgba(124,92,252,0.08);padding:3px 12px;border-radius:999px}
.related-title{font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s}
.related-card:hover .related-title{color:var(--brand-600)}
.related-excerpt{font-size:13px;color:var(--ink-600);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-date{font-size:12px;color:var(--ink-400);font-family:var(--font-num);margin-top:auto}
.related-empty{grid-column:1/-1;text-align:center;padding:40px;color:var(--ink-400);font-size:14px;background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-lg)}
@media(max-width:992px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.related-grid{grid-template-columns:1fr}}

/* 文末导航 */
.article-footer-nav{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:48px;padding-top:28px;border-top:1px solid var(--border)}
.prev-next{display:flex;gap:16px;flex:1;justify-content:flex-end}
.pn-item{display:flex;flex-direction:column;gap:2px;padding:10px 16px;border-radius:12px;background:var(--surface);border:1px solid var(--border);transition:all .25s;max-width:280px}
.pn-item:hover{border-color:var(--brand);box-shadow:var(--shadow-sm)}
.pn-label{font-size:12px;color:var(--ink-400);font-weight:600}
.pn-text{font-size:14px;color:var(--ink-900);font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pn-next{align-items:flex-end;text-align:right}
@media(max-width:640px){
  .article-footer-nav{flex-direction:column}
  .prev-next{width:100%;justify-content:space-between}
  .pn-item{max-width:48%}
}

/* CTA 区块 */
.cta-section{margin-top:64px}
.cta-card{position:relative;border-radius:24px;padding:56px 48px;background:linear-gradient(135deg,rgba(0,169,165,0.92),rgba(124,92,252,0.9)),url('/assets/images/backpic/back-1.png') center/cover;color:#fff;text-align:center;overflow:hidden}
.cta-card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#00A9A5 0%,#7C5CFC 100%);opacity:.9;z-index:0}
.cta-card>*{position:relative;z-index:1}
.cta-card h2{font-size:30px;font-weight:800;margin-bottom:12px;line-height:1.3}
.cta-card p{font-size:16px;color:rgba(255,255,255,0.92);max-width:560px;margin:0 auto 28px;line-height:1.7}
.cta-card .btn{background:#fff;color:var(--brand-600);font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,0.15)}
.cta-card .btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,0.2);filter:none}
@media(max-width:640px){.cta-card{padding:40px 20px}.cta-card h2{font-size:24px}}

/* 空状态 */
.not-found{text-align:center;padding:60px 20px;background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-lg);margin:32px 0}
.not-found .nf-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:20px;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:28px}
.not-found p{font-size:18px;font-weight:600;color:var(--ink-900);margin-bottom:16px}
.not-found .btn{margin-top:8px}

/* Footer */
.site-footer{background:#171D28;color:#B0B7C3;margin-top:80px;padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-logo{font-size:20px;font-weight:800;color:#F9FAFB;display:inline-flex;align-items:center;gap:8px;margin-bottom:16px}
.footer-logo::before{content:"";width:8px;height:28px;border-radius:4px;background:var(--gradient-brand)}
.footer-brand p{font-size:14px;line-height:1.75;color:#8A93A2;max-width:360px}
.footer-col h4{font-size:15px;font-weight:700;color:#F9FAFB;margin-bottom:18px;letter-spacing:0.5px}
.footer-col a{display:block;font-size:14px;color:#B0B7C3;padding:6px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;color:#B0B7C3;padding:5px 0;line-height:1.6}
.footer-tags{display:flex;flex-wrap:wrap;gap:12px;padding:28px 0;border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-tags span{font-size:13px;color:#B0B7C3;background:rgba(255,255,255,0.06);padding:6px 16px;border-radius:999px;transition:all .25s}
.footer-tags span:hover{border-color:var(--brand);color:#fff;background:rgba(0,169,165,0.15)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:24px 0;font-size:13px;color:#8A93A2}
.footer-bottom .links{display:flex;gap:16px}
.footer-bottom .links a{color:#8A93A2;transition:color .2s}
.footer-bottom .links a:hover{color:#fff}
@media(max-width:900px){.footer-top{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:640px){
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* 表单弹窗 */
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(15,23,42,0.5);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.active{display:flex;animation:fadeIn .3s ease}
.modal-box{background:var(--surface);border-radius:24px;box-shadow:var(--shadow-lg);width:100%;max-width:480px;padding:40px 36px;position:relative;animation:slideUp .35s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-400);transition:all .2s}
.modal-close:hover{background:var(--bg);color:var(--ink-900)}
.modal-title{font-size:24px;font-weight:800;color:var(--ink-900);margin-bottom:8px}
.modal-sub{font-size:14px;color:var(--ink-600);margin-bottom:24px;line-height:1.6}
.form-group{margin-bottom:16px}
.form-input{width:100%;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 16px;font-size:15px;color:var(--ink-900);transition:all .25s;line-height:1.5}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,169,165,0.15)}
.form-input::placeholder{color:var(--ink-400)}
textarea.form-input{resize:vertical;min-height:90px}
.btn-block{width:100%;height:48px;font-size:16px;font-weight:700;border-radius:12px}
.privacy-note{text-align:center;font-size:12px;color:var(--ink-400);margin-top:14px;line-height:1.6}
.privacy-note a{color:var(--ink-600);text-decoration:underline;text-underline-offset:2px}
.privacy-note a:hover{color:var(--brand-600)}
@media(max-width:520px){.modal-box{padding:32px 20px}.modal-title{font-size:20px}}

/* 通用助手 */
.mt-16{margin-top:16px}
.text-center{text-align:center}

/* roulang page: category1 */
:root {
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --ink-900: #1F2937;
  --ink-600: #5B6472;
  --ink-400: #9AA3B2;
  --brand: #00A9A5;
  --brand-600: #008B87;
  --accent: #7C5CFC;
  --highlight: #FF7F45;
  --border: #E5E9F2;
  --gradient-brand: linear-gradient(135deg, #00A9A5 0%, #7C5CFC 100%);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.04), 0 4px 16px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-modal: 0 24px 64px rgba(15, 23, 42, 0.16);
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Roboto Condensed", "Barlow Condensed", "Arial Narrow", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--ink-900);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 8px;
  height: 36px;
  border-radius: 6px;
  background: var(--gradient-brand);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text strong {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink-900);
  letter-spacing: -0.5px;
}
.logo-text small {
  font-size: 12px;
  color: var(--brand-600);
  font-weight: 600;
  letter-spacing: 1px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  align-items: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.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);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-tabs {
  display: inline-flex;
  background: var(--bg);
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--border);
  gap: 2px;
}
.nav-tab {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-600);
  border-radius: 10px;
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
  white-space: nowrap;
}
.nav-tab:hover {
  color: var(--ink-900);
  background: var(--surface);
}
.nav-tab.active {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  border-radius: 12px;
  padding: 10px 22px;
  transition: all .25s ease;
  line-height: 1.4;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: var(--shadow-hover);
}
.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink-900);
}
.btn-secondary:hover {
  border-color: var(--brand);
  color: var(--brand-600);
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 2px solid var(--ink-900);
  outline-offset: 2px;
}
.btn-nav-cta {
  border-radius: 999px;
  padding: 9px 20px;
  flex-shrink: 0;
}
.page-hero {
  position: relative;
  padding: 88px 0 72px;
  background:
    linear-gradient(#1F293705 1px, transparent 1px),
    linear-gradient(90deg, #1F293705 1px, transparent 1px),
    linear-gradient(135deg, rgba(0, 169, 165, 0.06), rgba(124, 92, 252, 0.04)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-size: 32px 32px, 32px 32px, cover, cover;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: '';
  position: absolute;
  right: -120px;
  top: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 169, 165, 0.12), transparent 65%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.breadcrumb {
  font-size: 14px;
  color: var(--ink-400);
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a {
  color: var(--ink-400);
  transition: color .25s;
}
.breadcrumb a:hover {
  color: var(--brand-600);
}
.breadcrumb .sep {
  color: var(--ink-400);
}
.breadcrumb .current {
  color: var(--ink-600);
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 169, 165, 0.1);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(0, 169, 165, 0.2);
}
.hero-chip::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(0, 169, 165, 0.15);
}
.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--ink-900);
  margin-bottom: 18px;
}
.hero-desc {
  font-size: 16px;
  color: var(--ink-600);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
}
.hero-visual img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--shadow-hover);
}
.hero-visual::after {
  content: '';
  position: absolute;
  inset: 16px -16px -16px 16px;
  border-radius: 20px;
  background: var(--gradient-brand);
  opacity: 0.08;
  z-index: -1;
}
.hero-metrics {
  margin-top: 60px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-start;
}
.metric-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.metric-badge:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.metric-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 800;
  color: var(--ink-900);
  line-height: 1;
}
.metric-num span {
  font-size: 20px;
  color: var(--highlight);
  font-weight: 800;
}
.metric-label {
  font-size: 13px;
  color: var(--ink-600);
  line-height: 1.3;
}
.section {
  padding: 96px 0;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head .tag {
  display: inline-flex;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(124, 92, 252, 0.08);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
  border: 1px solid rgba(124, 92, 252, 0.15);
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--ink-900);
  letter-spacing: -0.3px;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--ink-600);
  font-size: 16px;
  line-height: 1.7;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.feat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity .3s;
}
.feat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.feat-card:hover::before {
  opacity: 1;
}
.feat-card.dark {
  background: linear-gradient(135deg, #1F2937 0%, #111827 100%);
  border-color: transparent;
  color: #fff;
}
.feat-card.dark::before {
  opacity: 1;
}
.feat-card.dark .feat-icon {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}
.feat-card.dark h3 {
  color: #F9FAFB;
}
.feat-card.dark p {
  color: #B0B7C3;
}
.feat-card.dark .feat-list li {
  color: #B0B7C3;
}
.feat-card.dark .feat-list li::before {
  background: var(--brand);
}
.feat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(0, 169, 165, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--brand);
}
.feat-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--ink-900);
}
.feat-card > p {
  color: var(--ink-600);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.feat-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feat-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--ink-600);
  line-height: 1.6;
}
.feat-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}
.feat-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  border-bottom: 1px solid transparent;
  transition: color .25s, border-color .25s;
}
.feat-link:hover {
  color: var(--brand-600);
  border-color: var(--brand-600);
}
.scenes-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.scenes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.scene-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.scene-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.scene-card .scene-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.scene-card:nth-child(even) {
  transform: translateY(24px);
}
.scene-card:nth-child(even):hover {
  transform: translateY(21px);
}
.scene-body {
  padding: 24px 28px 28px;
}
.scene-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-900);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.scene-body h3::before {
  content: '';
  width: 4px;
  height: 18px;
  border-radius: 4px;
  background: var(--gradient-brand);
}
.scene-body p {
  color: var(--ink-600);
  font-size: 14px;
  line-height: 1.7;
}
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.scene-tags span {
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink-600);
  font-size: 12px;
  border: 1px solid var(--border);
}
.process-section {
  background: #171D28;
}
.process-section .section-head h2 {
  color: #F9FAFB;
}
.process-section .section-head p {
  color: #B0B7C3;
}
.process-section .section-head .tag {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 32px 24px;
  transition: background .3s ease, transform .3s ease;
}
.process-step:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
}
.process-num {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 14px;
  display: block;
}
.process-step h3 {
  color: #F9FAFB;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.process-step p {
  color: #B0B7C3;
  font-size: 14px;
  line-height: 1.7;
}
.process-step::after {
  content: '';
  position: absolute;
  right: -16px;
  top: 50%;
  width: 12px;
  height: 12px;
  border-top: 2px solid rgba(255, 255, 255, 0.2);
  border-right: 2px solid rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) rotate(45deg);
}
.process-step:last-child::after {
  display: none;
}
.faq-section {
  background: var(--bg);
}
.faq-list {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-hover);
}
.faq-item.open {
  box-shadow: var(--shadow-hover);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  text-align: left;
  transition: color .25s;
}
.faq-question:hover {
  color: var(--brand);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--brand);
  transition: transform .3s ease, background .3s ease;
  font-weight: 600;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 24px 24px;
}
.faq-answer p {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--ink-600);
  font-size: 15px;
  line-height: 1.8;
}
.cta-section {
  padding: 96px 0;
}
.cta-card {
  position: relative;
  background: linear-gradient(135deg, #1F2937 0%, #111827 100%);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 169, 165, 0.25), transparent 70%);
  pointer-events: none;
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 92, 252, 0.2), transparent 70%);
  pointer-events: none;
}
.cta-card h2 {
  color: #F9FAFB;
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.3px;
  position: relative;
  z-index: 1;
}
.cta-card p {
  color: #B0B7C3;
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.cta-actions .btn-primary {
  box-shadow: 0 8px 30px rgba(0, 169, 165, 0.3);
}
.cta-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #F9FAFB;
}
.cta-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}
.cta-privacy {
  margin-top: 20px;
  font-size: 12px;
  color: #8A93A2;
  position: relative;
  z-index: 1;
}
.cta-privacy a {
  color: #B0B7C3;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.site-footer {
  background: #171D28;
  color: #B0B7C3;
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: #F9FAFB;
  display: inline-block;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #8A93A2;
  max-width: 360px;
  margin-top: 10px;
}
.footer-col h4 {
  color: #F9FAFB;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #B0B7C3;
  font-size: 14px;
  margin-bottom: 10px;
  transition: color .25s;
}
.footer-col a:hover {
  color: #fff;
}
.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  color: #8A93A2;
  margin-bottom: 6px;
}
.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-tags span {
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  font-size: 13px;
  color: #B0B7C3;
  transition: border-color .25s, color .25s;
}
.footer-tags span:hover {
  border-color: var(--brand);
  color: #fff;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 0;
  font-size: 13px;
  color: #8A93A2;
}
.footer-bottom .links {
  display: flex;
  gap: 16px;
}
.footer-bottom .links a {
  color: #8A93A2;
  transition: color .25s;
}
.footer-bottom .links a:hover {
  color: #fff;
}
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-dialog {
  background: var(--surface);
  border-radius: 24px;
  max-width: 480px;
  width: calc(100% - 32px);
  padding: 40px;
  box-shadow: var(--shadow-modal);
  transform: translateY(24px) scale(0.97);
  transition: transform .3s ease;
  position: relative;
}
.modal-overlay.open .modal-dialog {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--ink-600);
  background: var(--bg);
  transition: background .25s ease, color .25s ease;
}
.modal-close:hover {
  background: var(--border);
  color: var(--ink-900);
}
.modal-dialog h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink-900);
  margin-bottom: 8px;
}
.modal-dialog .modal-sub {
  font-size: 14px;
  color: var(--ink-600);
  margin-bottom: 24px;
  line-height: 1.7;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  font-family: inherit;
  background: var(--surface);
  color: var(--ink-900);
  transition: border-color .25s ease, box-shadow .25s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(0, 169, 165, 0.15);
}
.form-group textarea {
  resize: vertical;
  min-height: 90px;
}
.form-submit {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  transition: filter .25s, transform .25s;
}
.form-submit:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
}
.form-privacy {
  text-align: center;
  font-size: 12px;
  color: var(--ink-400);
  margin-top: 14px;
}
.form-privacy a {
  color: var(--ink-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-visual img {
    height: 300px;
  }
  .hero-metrics {
    margin-top: 32px;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .process-step::after {
    display: none;
  }
  .scene-card:nth-child(even) {
    transform: none;
  }
  .scene-card:nth-child(even):hover {
    transform: translateY(-3px);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 16px;
    gap: 16px;
    z-index: 99;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform .3s ease, opacity .3s ease, visibility .3s ease;
    box-shadow: var(--shadow-hover);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-tabs {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 4px;
    background: transparent;
    border: none;
    padding: 0;
  }
  .nav-tab {
    padding: 12px 16px;
    text-align: center;
    background: var(--bg);
  }
  .nav-tab.active {
    background: var(--gradient-brand);
    color: #fff;
  }
  .btn-nav-cta {
    width: 100%;
    border-radius: 12px;
  }
  .page-hero {
    padding: 56px 0 48px;
  }
  .page-hero h1 {
    font-size: 34px;
  }
  .hero-visual img {
    height: 220px;
  }
  .hero-metrics {
    gap: 10px;
  }
  .metric-badge {
    flex: 1 1 calc(50% - 10px);
    padding: 14px 16px;
  }
  .metric-num {
    font-size: 30px;
  }
  .section {
    padding: 56px 0;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .scenes-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .scene-card:nth-child(even) {
    transform: none;
  }
  .scene-card:nth-child(even):hover {
    transform: translateY(-3px);
  }
  .scene-card .scene-img {
    height: 180px;
  }
  .process-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .process-step {
    padding: 24px 20px;
  }
  .cta-card {
    padding: 40px 24px;
    border-radius: 20px;
  }
  .cta-card h2 {
    font-size: 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .modal-dialog {
    padding: 32px 24px;
  }
}
@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
            --bg: #F5F7FA;
            --surface: #FFFFFF;
            --ink-900: #1F2937;
            --ink-600: #5B6472;
            --ink-400: #9AA3B2;
            --brand: #00A9A5;
            --brand-600: #008B87;
            --accent: #7C5CFC;
            --highlight: #FF7F45;
            --border: #E5E9F2;
            --gradient-brand: linear-gradient(135deg, #00A9A5 0%, #7C5CFC 100%);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 4px rgba(15,23,42,0.04), 0 4px 16px rgba(15,23,42,0.05);
            --shadow-md: 0 8px 30px rgba(15,23,42,0.08);
            --shadow-lg: 0 24px 64px rgba(15,23,42,0.16);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Roboto Condensed", "Barlow Condensed", "Arial Narrow", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--ink-900);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 68px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            box-shadow: 0 4px 12px rgba(0, 169, 165, 0.28);
            position: relative;
            overflow: hidden;
        }

        .logo-mark::after {
            content: "";
            position: absolute;
            inset: 6px;
            border-radius: 6px;
            border: 2px solid rgba(255, 255, 255, 0.75);
            background: radial-gradient(circle, rgba(255, 255, 255, 0.35) 0 2px, transparent 3px);
            background-size: 8px 8px;
        }

        .logo-text {
            display: flex;
            align-items: baseline;
            gap: 6px;
            line-height: 1;
        }

        .logo-text strong {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--ink-900);
        }

        .logo-text small {
            font-size: 12px;
            font-weight: 600;
            color: var(--ink-600);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 2px 6px;
            border-radius: 999px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            background: var(--bg);
            border: 1px solid var(--border);
        }

        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--ink-900);
            border-radius: 999px;
            transition: transform .25s ease, opacity .25s ease;
        }

        .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);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-tabs {
            display: inline-flex;
            gap: 4px;
            padding: 4px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink-600);
            transition: background .2s ease, color .2s ease, box-shadow .2s ease;
            white-space: nowrap;
        }

        .nav-tab:hover {
            color: var(--ink-900);
            background: rgba(0, 169, 165, 0.08);
        }

        .nav-tab.active {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 12px rgba(0, 169, 165, 0.25);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            padding: 10px 22px;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
            border: 1px solid transparent;
            line-height: 1.4;
        }

        .btn:focus-visible {
            outline: 2px solid var(--ink-900);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 14px rgba(0, 169, 165, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 169, 165, 0.35);
            filter: brightness(1.05);
        }

        .btn-ghost {
            background: #fff;
            border-color: var(--border);
            color: var(--ink-900);
        }

        .btn-ghost:hover {
            border-color: var(--brand);
            color: var(--brand-600);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-nav-cta {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
        }

        .category-hero {
            position: relative;
            padding: 96px 0 72px;
            background:
                linear-gradient(#1F293705 1px, transparent 1px) 0 0 / 32px 32px,
                linear-gradient(135deg, rgba(0, 169, 165, 0.08) 0%, rgba(124, 92, 252, 0.07) 50%, rgba(255, 255, 255, 0) 70%),
                url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.72) 55%, rgba(255, 255, 255, 0.45) 100%);
        }

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

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-600);
            margin-bottom: 18px;
            background: rgba(255, 255, 255, 0.8);
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid var(--border);
        }

        .hero-breadcrumb a {
            color: var(--brand-600);
        }

        .hero-breadcrumb a:hover {
            text-decoration: underline;
        }

        .category-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            color: var(--ink-900);
            margin-bottom: 16px;
        }

        .category-hero .lead {
            max-width: 620px;
            font-size: 18px;
            color: var(--ink-600);
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 40px;
        }

        .stat-badge {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 150px;
            padding: 20px 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-badge::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            height: 4px;
            width: 100%;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity .25s ease;
        }

        .stat-badge:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 169, 165, 0.3);
        }

        .stat-badge:hover::before {
            opacity: 1;
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--ink-900);
            letter-spacing: 0.5px;
        }

        .stat-num em {
            font-style: italic;
            font-size: 20px;
            color: var(--highlight);
            margin-left: 2px;
            vertical-align: top;
        }

        .stat-label {
            font-size: 12px;
            color: var(--ink-400);
            margin-top: 6px;
        }

        .section {
            padding: 96px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-600);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-eyebrow::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gradient-brand);
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink-900);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--ink-600);
            line-height: 1.75;
        }

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

        .cap-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease;
            position: relative;
            overflow: hidden;
        }

        .cap-card::after {
            content: "";
            position: absolute;
            right: -30px;
            bottom: -30px;
            width: 110px;
            height: 110px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 169, 165, 0.06), transparent 70%);
        }

        .cap-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .cap-card.dark {
            background: var(--gradient-brand);
            border: none;
            color: #fff;
        }

        .cap-card.dark::after {
            background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent 70%);
        }

        .cap-card.dark .cap-title,
        .cap-card.dark .cap-desc {
            color: #fff;
        }

        .cap-card.dark .cap-icon {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        .cap-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            background: rgba(0, 169, 165, 0.1);
            color: var(--brand-600);
            margin-bottom: 24px;
        }

        .cap-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 8px;
        }

        .cap-desc {
            font-size: 14px;
            color: var(--ink-600);
            line-height: 1.7;
        }

        .scenario-section {
            padding: 96px 0;
            background: #171D28;
            color: #F9FAFB;
            position: relative;
            overflow: hidden;
        }

        .scenario-section::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 1px solid rgba(0, 169, 165, 0.35);
            box-shadow: 0 0 0 40px rgba(0, 169, 165, 0.06), 0 0 0 80px rgba(124, 92, 252, 0.05);
        }

        .scenario-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .scenario-text .section-head {
            margin-bottom: 32px;
        }

        .scenario-text .section-head .section-eyebrow {
            color: #4FD1CB;
        }

        .scenario-text .section-head h2 {
            color: #fff;
        }

        .scenario-text .section-head p {
            color: #B0B7C3;
        }

        .scenario-list {
            list-style: none;
            display: grid;
            gap: 12px;
        }

        .scenario-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            font-size: 15px;
            color: #E2E8F0;
            transition: background .2s ease, border-color .2s ease, transform .2s ease;
        }

        .scenario-list li:hover {
            background: rgba(0, 169, 165, 0.16);
            border-color: rgba(0, 169, 165, 0.45);
            transform: translateX(6px);
        }

        .scenario-list li i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gradient-brand);
            flex-shrink: 0;
        }

        .scenario-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
        }

        .scenario-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        .process-section {
            padding: 96px 0;
            background: var(--bg);
        }

        .process-timeline {
            position: relative;
            max-width: 920px;
            margin: 0 auto;
            padding-left: 60px;
        }

        .process-timeline::before {
            content: "";
            position: absolute;
            left: 22px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--brand), var(--accent));
            border-radius: 999px;
            opacity: 0.3;
        }

        .process-item {
            position: relative;
            padding: 24px 0 24px 40px;
        }

        .process-item::before {
            content: "";
            position: absolute;
            left: -38px;
            top: 36px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--gradient-brand);
            border: 3px solid #fff;
            box-shadow: 0 0 0 4px rgba(0, 169, 165, 0.2);
            z-index: 2;
        }

        .process-num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 800;
            color: var(--brand);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .process-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 6px;
        }

        .process-item p {
            font-size: 14px;
            color: var(--ink-600);
            line-height: 1.7;
            max-width: 560px;
        }

        .faq-section {
            padding: 96px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
        }

        .faq-wrap {
            max-width: 920px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 20px 24px;
            transition: box-shadow .25s ease, border-color .25s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 169, 165, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink-900);
            line-height: 1.5;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 169, 165, 0.1);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 400;
            transition: transform .3s ease, background .3s ease, color .3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            font-size: 14px;
            color: var(--ink-600);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-top: 12px;
            margin-top: 12px;
            border-top: 1px solid var(--border);
        }

        .cta-section {
            padding: 80px 0;
            background:
                linear-gradient(#1F293705 1px, transparent 1px) 0 0 / 32px 32px,
                var(--gradient-brand);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            right: -50px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.25);
            box-shadow: 0 0 0 38px rgba(255, 255, 255, 0.08);
        }

        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            color: #fff;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: 16px;
            opacity: 0.92;
            margin-bottom: 28px;
        }

        .cta-box .btn {
            background: #fff;
            color: var(--brand-600);
            border-radius: 999px;
            font-size: 16px;
            padding: 12px 32px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        }

        .cta-box .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
        }

        .site-footer {
            background: #171D28;
            color: #B0B7C3;
            padding: 64px 0 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #F9FAFB;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-logo::before {
            content: "";
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: var(--gradient-brand);
            display: inline-block;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #8A93A2;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #F9FAFB;
            margin-bottom: 16px;
        }

        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 13px;
            color: #8A93A2;
            margin-bottom: 8px;
            transition: color .2s ease;
        }

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

        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 28px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-tags span {
            font-size: 12px;
            padding: 4px 14px;
            background: rgba(255, 255, 255, 0.06);
            color: #B0B7C3;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: border-color .2s ease, color .2s ease;
        }

        .footer-tags span:hover {
            border-color: rgba(0, 169, 165, 0.5);
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 0 28px;
            font-size: 12px;
            color: #8A93A2;
        }

        .footer-bottom .links a {
            color: #8A93A2;
            margin-left: 16px;
            transition: color .2s ease;
        }

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

        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            backdrop-filter: blur(6px);
            z-index: 200;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-box {
            background: #fff;
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
            max-width: 480px;
            width: 100%;
            padding: 36px;
            position: relative;
            transform: translateY(16px) scale(0.98);
            transition: transform .3s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .modal-overlay.active .modal-box {
            transform: translateY(0) scale(1);
        }

        .modal-close {
            position: absolute;
            right: 16px;
            top: 16px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--ink-600);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, transform .2s ease;
        }

        .modal-close:hover {
            background: var(--border);
            transform: rotate(90deg);
        }

        .modal-box h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink-900);
            margin-bottom: 8px;
        }

        .modal-box>p {
            font-size: 14px;
            color: var(--ink-600);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--ink-900);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            font-size: 14px;
            color: var(--ink-900);
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(0, 169, 165, 0.15);
        }

        .form-control::placeholder {
            color: var(--ink-400);
        }

        .btn-submit {
            width: 100%;
            height: 48px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 169, 165, 0.3);
            filter: brightness(1.05);
        }

        .modal-privacy {
            text-align: center;
            font-size: 12px;
            color: var(--ink-400);
            margin-top: 12px;
        }

        .modal-privacy a {
            color: var(--brand-600);
            text-decoration: underline;
        }

        @media (max-width: 1024px) {
            .header-inner {
                gap: 16px;
            }

            .nav-tab {
                padding: 8px 14px;
                font-size: 13px;
            }

            .scenario-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .scenario-visual img {
                min-height: 220px;
            }

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

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 68px;
                right: 0;
                width: 100%;
                max-width: 360px;
                height: calc(100vh - 68px);
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 16px;
                padding: 24px;
                border-left: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateX(100%);
                transition: transform .35s cubic-bezier(0.22, 1, 0.36, 1);
                z-index: 99;
            }

            .main-nav.open {
                transform: translateX(0);
            }

            .nav-tabs {
                flex-direction: column;
                gap: 8px;
                background: transparent;
                border: none;
                padding: 0;
            }

            .nav-tab {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-md);
                background: var(--bg);
            }

            .nav-tab.active {
                background: var(--gradient-brand);
            }

            .btn-nav-cta {
                width: 100%;
                justify-content: center;
            }

            .category-hero {
                padding: 64px 0 48px;
            }

            .category-hero h1 {
                font-size: 34px;
            }

            .category-hero .lead {
                font-size: 16px;
            }

            .hero-stats {
                gap: 12px;
            }

            .stat-badge {
                min-width: 130px;
                padding: 16px 18px;
            }

            .stat-num {
                font-size: 30px;
            }

            .section {
                padding: 56px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

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

            .process-timeline {
                padding-left: 40px;
            }

            .process-item {
                padding-left: 24px;
            }

            .process-item::before {
                left: -31px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-bottom .links a {
                margin-left: 0;
                margin-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-stats {
                flex-direction: column;
            }

            .stat-badge {
                width: 100%;
            }

            .scenario-list li {
                font-size: 14px;
                padding: 12px 14px;
            }

            .process-timeline {
                padding-left: 32px;
            }

            .process-item {
                padding-left: 18px;
            }

            .process-item::before {
                left: -25px;
                width: 14px;
                height: 14px;
            }

            .cta-box h2 {
                font-size: 26px;
            }

            .modal-box {
                padding: 28px 20px;
            }
        }

/* roulang page: category3 */
:root {
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --ink-900: #1F2937;
  --ink-600: #5B6472;
  --ink-400: #9AA3B2;
  --brand: #00A9A5;
  --brand-600: #008B87;
  --accent: #7C5CFC;
  --highlight: #FF7F45;
  --border: #E5E9F2;
  --gradient-brand: linear-gradient(135deg, #00A9A5 0%, #7C5CFC 100%);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 4px rgba(15,23,42,0.04), 0 4px 16px rgba(15,23,42,0.05);
  --shadow-md: 0 8px 30px rgba(15,23,42,0.08);
  --shadow-lg: 0 24px 64px rgba(15,23,42,0.16);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:color .2s ease,border-color .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .section-tag{display:inline-block;background:rgba(0,169,165,0.1);color:var(--brand-600);font-size:14px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:16px;letter-spacing:0.5px}
.section-head h2{font-size:34px;font-weight:800;line-height:1.2;letter-spacing:-0.5px;color:var(--ink-900)}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:16px;line-height:1.75}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-md);font-size:15px;font-weight:600;line-height:1;transition:all .25s ease;border:1px solid transparent}
.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 16px rgba(0,169,165,0.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(0,169,165,0.32);filter:brightness(1.05)}
.btn-primary:focus-visible{outline:2px solid var(--ink-900);outline-offset:3px}
.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-secondary:focus-visible{outline:2px solid var(--brand);outline-offset:3px}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:68px;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:28px;height:28px;border-radius:6px;background:var(--gradient-brand);box-shadow:0 2px 8px rgba(0,169,165,0.3)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:20px;font-weight:800;color:var(--ink-900);letter-spacing:-0.3px}
.logo-text small{font-size:11px;font-weight:600;color:var(--ink-600);letter-spacing:1.5px;text-align:right}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:8px;background:var(--bg)}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink-900);border-radius:2px;transition:all .3s ease}
.main-nav{display:flex;align-items:center;gap:16px}
.nav-tabs{display:inline-flex;background:var(--bg);border:1px solid var(--border);padding:4px;border-radius:12px;gap:2px}
.nav-tab{display:inline-flex;align-items:center;padding:8px 20px;font-size:14px;font-weight:600;color:var(--ink-600);border-radius:10px;transition:all .25s ease;white-space:nowrap}
.nav-tab:hover{color:var(--ink-900);background:rgba(255,255,255,0.7)}
.nav-tab.active{background:var(--gradient-brand);color:#fff;box-shadow:0 4px 12px rgba(0,169,165,0.28)}
.btn-nav-cta{margin-left:4px}

/* Category Hero */
.category-hero{position:relative;padding:160px 0 80px;background:linear-gradient(180deg,#F5F7FA 0%,#FFFFFF 100%);overflow:hidden}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(#1F293705 1px,transparent 1px),linear-gradient(90deg,#1F293705 1px,transparent 1px);
  background-size:32px 32px;pointer-events:none;
}
.category-hero::after{
  content:"";position:absolute;top:-100px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,169,165,0.14) 0%,rgba(124,92,252,0.08) 45%,transparent 70%);
  pointer-events:none;
}
.category-hero-inner{position:relative;z-index:2;display:flex;gap:60px;align-items:center}
.category-hero-copy{flex:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);margin-bottom:24px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-400);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .current{color:var(--ink-600);font-weight:600}
.hero-chip{display:inline-flex;align-items:center;gap:8px;background:rgba(0,169,165,0.08);border:1px solid rgba(0,169,165,0.18);color:var(--brand-600);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:22px}
.category-hero h1{font-size:48px;font-weight:800;line-height:1.15;letter-spacing:-0.5px;color:var(--ink-900);margin-bottom:18px}
.category-hero p.lead{font-size:18px;line-height:1.8;color:var(--ink-600);max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.category-hero-visual{flex:0 0 480px;position:relative}
.hero-visual-box{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);background:var(--surface)}
.hero-visual-box img{width:100%;height:340px;object-fit:cover}
.hero-visual-box::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(15,23,42,0.55) 100%)}
.hero-visual-caption{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;color:#fff}
.hero-visual-caption strong{display:block;font-size:18px;font-weight:700;margin-bottom:4px}
.hero-visual-caption span{font-size:13px;opacity:0.85}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;position:relative;z-index:2}
.stat-badge{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease;position:relative;overflow:hidden}
.stat-badge:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat-badge::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-brand)}
.stat-badge .num{font-family:"DIN Alternate","Roboto Condensed","Barlow Condensed","Arial Narrow",sans-serif;font-size:40px;font-weight:800;color:var(--ink-900);line-height:1.1}
.stat-badge .num .unit{font-size:16px;color:var(--highlight);margin-left:2px;font-weight:700}
.stat-badge .label{font-size:13px;color:var(--ink-600);margin-top:6px}

/* Service Scope */
.service-scope{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.scope-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1000px;margin:0 auto}
.scope-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;display:flex;gap:20px;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}
.scope-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);background:var(--surface)}
.scope-icon{flex-shrink:0;width:56px;height:56px;border-radius:16px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;box-shadow:0 6px 16px rgba(0,169,165,0.25)}
.scope-body h3{font-size:20px;font-weight:700;color:var(--ink-900);margin-bottom:10px}
.scope-body p{font-size:15px;color:var(--ink-600);line-height:1.7}

/* Solution Section */
.solution-section{background:var(--bg)}
.solution-feature{display:grid;grid-template-columns:1.1fr 1fr;gap:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:56px}
.solution-feature-img{position:relative;min-height:360px;background:var(--bg)}
.solution-feature-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.solution-feature-img::after{content:"";position:absolute;inset:0;background:linear-gradient(270deg,rgba(0,169,165,0.08),transparent 40%)}
.solution-feature-content{padding:48px;display:flex;flex-direction:column;justify-content:center}
.solution-feature-content .category-chip{display:inline-flex;align-self:flex-start;background:rgba(124,92,252,0.1);color:var(--accent);font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;margin-bottom:16px}
.solution-feature-content h3{font-size:28px;font-weight:800;color:var(--ink-900);margin-bottom:14px;line-height:1.3}
.solution-feature-content p{color:var(--ink-600);font-size:16px;line-height:1.75;margin-bottom:20px}
.solution-feature-content ul{list-style:none;margin-bottom:28px;display:flex;flex-direction:column;gap:10px}
.solution-feature-content ul li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-600)}
.solution-feature-content ul li::before{content:"";flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--gradient-brand);margin-top:8px}

.compact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compact-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease}
.compact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.compact-card .compact-card-img{position:relative;overflow:hidden;aspect-ratio:16/9}
.compact-card .compact-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.compact-card:hover .compact-card-img img{transform:scale(1.03)}
.compact-card .compact-card-body{padding:24px}
.card-tag{display:inline-block;background:rgba(0,169,165,0.08);color:var(--brand-600);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:12px}
.compact-card h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:8px;line-height:1.4}
.compact-card p{font-size:14px;color:var(--ink-600);line-height:1.65;margin-bottom:14px}
.compact-card.card-dark{background:#1F2937;border-color:#1F2937}
.compact-card.card-dark .card-tag{background:rgba(255,255,255,0.12);color:#fff}
.compact-card.card-dark h3{color:#fff}
.compact-card.card-dark p{color:#B0B7C3}
.compact-card.card-dark .text-link{color:rgba(255,255,255,0.85)}
.compact-card.card-dark .text-link:hover{color:#fff}
.compact-card.offset-down{transform:translateY(24px)}
.compact-card.offset-down:hover{transform:translateY(21px)}
.text-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--brand-600);transition:gap .2s ease}
.text-link:hover{gap:8px;color:var(--brand-600)}

/* Evidence Section */
.evidence-section{background:#1F2937;padding:80px 0;position:relative;overflow:hidden}
.evidence-section::before{content:"";position:absolute;top:-80px;right:-80px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(0,169,165,0.2),transparent 70%);pointer-events:none}
.evidence-section::after{content:"";position:absolute;bottom:-80px;left:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(124,92,252,0.18),transparent 70%);pointer-events:none}
.evidence-inner{position:relative;z-index:2}
.evidence-head{text-align:center;margin-bottom:56px}
.evidence-head h2{font-size:34px;font-weight:800;color:#F9FAFB;line-height:1.2;letter-spacing:-0.5px}
.evidence-head p{color:#B0B7C3;font-size:16px;margin-top:12px}
.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.evidence-item{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:transform .25s ease,background .25s ease;position:relative;overflow:hidden}
.evidence-item:hover{transform:translateY(-4px);background:rgba(255,255,255,0.1)}
.evidence-item::after{content:"";position:absolute;bottom:0;left:20%;right:20%;height:4px;border-radius:2px;background:var(--gradient-brand);transform:scaleX(0);transition:transform .3s ease}
.evidence-item:hover::after{transform:scaleX(1)}
.evidence-item .e-num{font-family:"DIN Alternate","Roboto Condensed","Barlow Condensed","Arial Narrow",sans-serif;font-size:52px;font-weight:800;color:#fff;line-height:1;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.evidence-item .e-num .e-unit{font-size:20px;vertical-align:super;color:var(--highlight);-webkit-text-fill-color:var(--highlight)}
.evidence-item .e-label{font-size:14px;color:#B0B7C3;margin-top:12px}

/* Workflow */
.workflow-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.workflow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1080px;margin:0 auto}
.workflow-step{position:relative;padding:32px 24px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);transition:transform .25s ease,box-shadow .25s ease}
.workflow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.workflow-step .step-num{font-family:"DIN Alternate","Roboto Condensed","Arial Narrow",sans-serif;font-size:56px;font-weight:800;line-height:1;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px;display:block}
.workflow-step h3{font-size:18px;font-weight:700;color:var(--ink-900);margin-bottom:10px}
.workflow-step p{font-size:14px;color:var(--ink-600);line-height:1.7}
.workflow-step::before{content:"";position:absolute;top:40px;right:-24px;width:24px;height:2px;background:var(--border)}
.workflow-step:last-child::before{display:none}

/* FAQ */
.faq-section{background:var(--bg)}
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .25s ease}
.faq-item:hover{box-shadow:var(--shadow-md)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 28px;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;text-align:left;transition:color .2s}
.faq-q:hover{color:var(--brand-600)}
.faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:400;color:var(--ink-600);transition:transform .3s ease,background .3s ease,color .3s ease;line-height:1}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--gradient-brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 28px 24px;border-top:1px solid var(--border);padding-top:16px;color:var(--ink-600);font-size:15px;line-height:1.75;background:rgba(0,169,165,0.02)}

/* CTA */
.cta-section{padding:96px 0;background:linear-gradient(135deg,#00A9A5 0%,#7C5CFC 100%);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background-image:linear-gradient(#FFFFFF12 1px,transparent 1px),linear-gradient(90deg,#FFFFFF12 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.cta-card{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;padding:24px}
.cta-card h2{font-size:36px;font-weight:800;color:#fff;line-height:1.25;letter-spacing:-0.5px;margin-bottom:14px}
.cta-card p{color:rgba(255,255,255,0.9);font-size:17px;line-height:1.7;margin-bottom:32px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--brand-600);box-shadow:0 8px 24px rgba(31,41,55,0.18)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(31,41,55,0.24)}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,0.6);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,0.1);border-color:#fff;transform:translateY(-2px)}
.privacy-note{font-size:12px;color:rgba(255,255,255,0.75);margin-top:20px}
.privacy-note a{color:#fff;text-decoration:underline}

/* Modal */
.modal-overlay{position:fixed;inset:0;z-index:2000;background:rgba(15,23,42,0.5);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;padding:20px}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{background:var(--surface);border-radius:20px;max-width:480px;width:100%;padding:40px;box-shadow:var(--shadow-lg);transform:translateY(24px) scale(0.96);transition:transform .3s ease;position:relative;max-height:90vh;overflow-y:auto}
.modal-overlay.active .modal{transform:translateY(0) scale(1)}
.modal-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink-600);transition:background .2s ease,color .2s ease}
.modal-close:hover{background:var(--border);color:var(--ink-900)}
.modal h3{font-size:24px;font-weight:800;color:var(--ink-900);margin-bottom:8px}
.modal .modal-desc{font-size:14px;color:var(--ink-600);margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);font-size:15px;color:var(--ink-900);transition:border-color .2s ease,box-shadow .2s ease;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,169,165,0.15)}
.form-group textarea{resize:vertical;min-height:90px}
.btn-block{width:100%;height:48px;font-size:16px;margin-top:8px}
.modal-privacy{font-size:12px;color:var(--ink-400);text-align:center;margin-top:14px}
.modal-privacy a{color:var(--ink-600);text-decoration:underline}
.modal-privacy a:hover{color:var(--brand-600)}
.modal::-webkit-scrollbar{width:6px}
.modal::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* Footer */
.site-footer{background:#171D28;color:#B0B7C3;padding:64px 0 0;font-size:14px}
.site-footer a{transition:color .2s ease}
.site-footer a:hover{color:#fff}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-logo{font-size:22px;font-weight:800;color:#F9FAFB;letter-spacing:-0.3px;display:inline-flex;align-items:center;gap:8px;margin-bottom:14px}
.footer-logo::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--gradient-brand);display:inline-block}
.footer-brand p{font-size:14px;line-height:1.7;color:#8A93A2;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:#F9FAFB;margin-bottom:20px}
.footer-col a,.footer-col p{display:block;color:#B0B7C3;margin-bottom:10px;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;padding:24px 0;border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-tags span{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.06);padding:6px 16px;border-radius:999px;font-size:13px;color:#B0B7C3;transition:all .2s ease}
.footer-tags span:hover{border-color:var(--brand);color:#fff}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0;flex-wrap:wrap;font-size:13px;color:#8A93A2}
.footer-bottom .links{display:flex;gap:20px}
.footer-bottom .links a{color:#8A93A2}
.footer-bottom .links a:hover{color:#fff}

/* Responsive */
@media (max-width:1024px){
  .category-hero{padding:140px 0 64px}
  .category-hero-inner{flex-direction:column;gap:40px}
  .category-hero-visual{flex:0 0 auto;width:100%}
  .hero-visual-box img{height:300px}
  .workflow-grid{grid-template-columns:repeat(2,1fr)}
  .workflow-step::before{display:none}
  .evidence-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:68px;left:0;right:0;background:var(--surface);padding:20px;flex-direction:column;align-items:stretch;gap:16px;box-shadow:var(--shadow-md);transform:translateY(-120%);transition:transform .3s ease;z-index:999;border-bottom:1px solid var(--border)}
  .main-nav.open{transform:translateY(0)}
  .nav-tabs{flex-direction:column;background:transparent;border:none;padding:0;gap:8px}
  .nav-tab{padding:12px 16px;justify-content:center;background:var(--bg)}
  .nav-tab.active{background:var(--gradient-brand)}
  .btn-nav-cta{width:100%;margin-left:0}
  .category-hero h1{font-size:34px}
  .category-hero p.lead{font-size:16px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat-badge .num{font-size:32px}
  .section-head h2{font-size:26px}
  .scope-grid{grid-template-columns:1fr;gap:16px}
  .solution-feature{grid-template-columns:1fr}
  .solution-feature-img{min-height:240px}
  .solution-feature-content{padding:32px}
  .solution-feature-content h3{font-size:22px}
  .compact-grid{grid-template-columns:1fr;gap:20px}
  .compact-card.offset-down{transform:none}
  .compact-card.offset-down:hover{transform:translateY(-3px)}
  .evidence-grid{grid-template-columns:1fr}
  .evidence-item .e-num{font-size:44px}
  .workflow-grid{grid-template-columns:1fr}
  .workflow-grid .workflow-step:nth-child(even){transform:none}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .btn-nav-cta{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .category-hero{padding:130px 0 48px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-badge{padding:14px}
  .stat-badge .num{font-size:28px}
  .cta-card h2{font-size:28px}
  .modal{padding:28px 20px}
}