/* roulang page: index */
:root {
  --primary: #1B4332;
  --primary-dark: #143629;
  --primary-light: rgba(27, 67, 50, 0.08);
  --accent: #A3E635;
  --accent-rgb: 163, 230, 53;
  --bg: #F5F4EF;
  --dark: #1A1A1A;
  --text: #1E1E1E;
  --text-muted: #5B5B5B;
  --border: #E4E2DA;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(27, 67, 50, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 67, 50, 0.16);
  --container: 1200px;
  --space-section: 96px;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  padding-top: 64px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 28px; border-radius: 999px;
  font-size: .9375rem; font-weight: 600; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer;
  transition: background .25s, color .25s, transform .2s, box-shadow .25s, opacity .2s;
  white-space: nowrap; gap: 8px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(27,67,50,.2); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-1px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--accent); color: var(--primary); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,0,0,.15); }
.btn-lg { height: 52px; padding: 0 36px; font-size: 1rem; }
.btn-submit { background: var(--accent); color: var(--primary); height: 48px; border: none; border-radius: 999px; font-weight: 700; }
.btn-submit:hover { background: #c3f74a; transform: translateY(-1px); }
.btn-submit:disabled { opacity: .65; cursor: not-allowed; transform: none; }
.btn-submit.loading { opacity: .75; }
.btn-submit.success { background: #2d6a4f; color: #fff; }
.btn-submit.error { background: #c1121f; color: #fff; }

/* ========== Header ========== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s, border-color .3s;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(0,0,0,.06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.logo { display: flex; align-items: baseline; gap: 2px; font-size: 1.375rem; font-weight: 800; color: var(--primary); letter-spacing: -.01em; line-height: 1.2; }
.logo em { font-style: normal; color: var(--primary); }
.logo .logo-mark { color: var(--accent); font-weight: 900; margin-right: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { display: inline-flex; align-items: center; padding: 7px 18px; border-radius: 999px; font-size: .9375rem; font-weight: 500; color: var(--text); transition: background .25s, color .25s; }
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }
.nav-links a.active { color: #fff; background: var(--primary); font-weight: 600; }
.nav-cta { margin-left: 12px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px; border: none; background: transparent; cursor: pointer; padding: 6px; border-radius: 8px; }
.nav-toggle span { display: block; height: 2px; width: 22px; background: var(--primary); border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 580px;
  display: flex; align-items: center;
  background: linear-gradient(120deg, rgba(27,67,50,.96) 0%, rgba(27,67,50,.82) 45%, rgba(26,26,26,.68) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 60px), 0 100%);
  color: #fff;
  overflow: hidden;
}
.hero-inner { padding-top: 48px; padding-bottom: 96px; width: 100%; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; line-height: 1.15; letter-spacing: -.02em; margin-bottom: 20px; }
.hero h1 span { display: block; font-size: .55em; font-weight: 600; color: var(--accent); line-height: 1.3; margin-top: 14px; letter-spacing: -.01em; }
.hero-sub { font-size: 1.0625rem; line-height: 1.75; color: rgba(255,255,255,.85); max-width: 640px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 56px; }
.hero-actions .btn { min-width: 120px; }
.hero-metrics { display: flex; gap: 48px; flex-wrap: wrap; }
.hero-metrics .metric-mini { display: flex; flex-direction: column; }
.hero-metrics .metric-mini strong { font-size: 1.625rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
.hero-metrics .metric-mini span { font-size: .8125rem; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ========== Sections ========== */
.section { padding: var(--space-section) 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 52px; }
.section-eyebrow { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .14em; color: var(--primary); text-transform: uppercase; margin-bottom: 8px; }
.section-title { font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.3; letter-spacing: -.015em; color: var(--text); }
.section-desc { max-width: 520px; color: var(--text-muted); font-size: .9375rem; line-height: 1.7; }

/* ========== Services ========== */
.service-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 64px; }
.service-row:last-child { margin-bottom: 0; }
.service-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); position: relative; }
.service-media img { width: 100%; height: 300px; object-fit: cover; transition: transform .5s ease; }
.service-media:hover img { transform: scale(1.03); }
.service-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(27,67,50,.18), transparent 55%); }
.service-body { padding: 8px 0; }
.service-body .service-no { font-size: .8125rem; font-weight: 700; color: var(--accent); background: var(--primary); display: inline-block; padding: 4px 14px; border-radius: 999px; letter-spacing: .08em; margin-bottom: 16px; }
.service-body h3 { font-size: 1.375rem; font-weight: 700; margin-bottom: 12px; color: var(--text); line-height: 1.35; }
.service-body p { color: var(--text-muted); font-size: .9375rem; line-height: 1.75; margin-bottom: 16px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tags span { font-size: .75rem; color: var(--primary); background: var(--primary-light); border-radius: 8px; padding: 4px 12px; font-weight: 500; }
.service-row:nth-child(even) .service-media { order: 2; }
.service-row:nth-child(even) .service-body { order: 1; }
.service-mini-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 64px; }
.service-mini { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: box-shadow .3s, transform .3s, border-color .3s; }
.service-mini:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--primary); }
.service-mini .icon-wrap { width: 44px; height: 44px; border-radius: 10px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin-bottom: 18px; }
.service-mini h4 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 8px; }
.service-mini p { font-size: .875rem; color: var(--text-muted); line-height: 1.7; }

/* ========== Stats ========== */
.stats-section { background: var(--dark); color: #fff; position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.stats-head { text-align: center; margin-bottom: 60px; }
.stats-head .section-eyebrow { color: var(--accent); }
.stats-head .section-title { color: #fff; }
.stats-head .section-desc { margin: 12px auto 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.stat-item { text-align: center; padding: 20px 0; position: relative; }
.stat-item + .stat-item::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); height: 72px; width: 1px; background: rgba(255,255,255,.08); }
.stat-item .num { display: block; font-size: clamp(3rem, 5vw, 4.25rem); font-weight: 800; color: var(--accent); line-height: 1; letter-spacing: -.02em; }
.stat-item .label { font-size: .9375rem; color: rgba(255,255,255,.7); margin-top: 12px; }

/* ========== Cases ========== */
.cases-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; grid-template-rows: auto auto; gap: 24px; }
.case-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: #fff; border: 1px solid var(--border); transition: box-shadow .3s, transform .3s; }
.case-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.case-card img { width: 100%; height: 100%; object-fit: cover; }
.case-card .case-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(26,26,26,.92) 0%, rgba(26,26,26,.35) 45%, transparent 100%); display: flex; flex-direction: column; justify-content: flex-end; padding: 28px; color: #fff; }
.case-card .case-tag { display: inline-block; font-size: .75rem; font-weight: 600; background: var(--accent); color: var(--primary); border-radius: 8px; padding: 3px 10px; margin-bottom: 10px; align-self: flex-start; }
.case-card .case-title { font-size: 1.25rem; font-weight: 700; line-height: 1.3; margin-bottom: 6px; }
.case-card .case-desc { font-size: .875rem; color: rgba(255,255,255,.8); line-height: 1.6; }
.case-card:nth-child(1) { grid-column: 1; grid-row: 1 / 3; min-height: 420px; }
.case-card:nth-child(2) { grid-column: 2; grid-row: 1; }
.case-card:nth-child(3) { grid-column: 3; grid-row: 1; }
.case-card:nth-child(4) { grid-column: 2 / 4; grid-row: 2; }
.case-card:nth-child(2) .case-overlay, .case-card:nth-child(3) .case-overlay, .case-card:nth-child(4) .case-overlay { padding: 22px; }
.case-card:nth-child(2) .case-title, .case-card:nth-child(3) .case-title { font-size: 1.0625rem; }

/* ========== Solutions ========== */
.solutions-section { background: var(--dark); padding: var(--space-section) 0; color: #fff; }
.solutions-head { text-align: center; margin-bottom: 52px; }
.solutions-head .section-eyebrow { color: var(--accent); }
.solutions-head .section-title { color: #fff; }
.solutions-head .section-desc { margin: 12px auto 0; color: rgba(255,255,255,.72); }
.solution-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.solution-card { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); padding: 36px; transition: background .3s, transform .3s, border-color .3s; display: flex; flex-direction: column; }
.solution-card:hover { background: rgba(255,255,255,.08); transform: translateY(-3px); border-color: rgba(163,230,53,.4); }
.solution-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 14px; color: #fff; }
.solution-card .solution-scene { font-size: .8125rem; color: var(--accent); background: rgba(163,230,53,.12); display: inline-block; padding: 4px 12px; border-radius: 999px; margin-bottom: 20px; align-self: flex-start; }
.solution-card ul { list-style: none; margin-bottom: 24px; flex: 1; }
.solution-card ul li { font-size: .875rem; color: rgba(255,255,255,.72); line-height: 1.7; padding-left: 20px; position: relative; }
.solution-card ul li::before { content: '›'; color: var(--accent); font-size: 1.125rem; position: absolute; left: 4px; top: -1px; font-weight: 700; }
.solution-card a { color: var(--accent); font-size: .875rem; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: gap .2s; }
.solution-card a:hover { gap: 10px; }

/* ========== News ========== */
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-row { display: grid; grid-template-columns: 150px 1fr 48px; gap: 24px; align-items: center; padding: 28px 24px; border-bottom: 1px solid var(--border); background: #fff; border-radius: var(--radius-md); margin-bottom: 12px; transition: box-shadow .25s, transform .25s, border-color .25s; border: 1px solid var(--border); }
.news-row:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: var(--primary); }
.news-meta { display: flex; flex-direction: column; gap: 8px; }
.news-tag { display: inline-block; font-size: .75rem; font-weight: 600; color: var(--primary); background: var(--primary-light); border-radius: 8px; padding: 3px 10px; width: fit-content; }
.news-meta time { font-size: .8125rem; color: var(--text-muted); }
.news-body h3 { font-size: 1.0625rem; font-weight: 700; line-height: 1.4; color: var(--text); margin-bottom: 6px; transition: color .2s; }
.news-row:hover .news-body h3 { color: var(--primary); }
.news-body p { font-size: .875rem; color: var(--text-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-arrow { width: 40px; height: 40px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: .9375rem; transition: background .25s, color .25s; }
.news-row:hover .news-arrow { background: var(--primary); color: #fff; }
.news-empty { text-align: center; padding: 60px 24px; background: #fff; border: 1px dashed var(--border); border-radius: var(--radius-lg); color: var(--text-muted); font-size: .9375rem; }

/* ========== FAQ ========== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; transition: border-color .3s, box-shadow .3s; }
.faq-item:hover { border-color: var(--primary); }
.faq-item.active { border-color: var(--primary); background: rgba(27, 67, 50, 0.04); }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; cursor: pointer; font-size: .9375rem; font-weight: 600; color: var(--text); transition: color .2s; }
.faq-question:hover { color: var(--primary); }
.faq-icon { position: relative; width: 20px; height: 20px; flex-shrink: 0; transition: transform .3s; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--primary); border-radius: 2px; transition: background .2s; }
.faq-icon::before { width: 16px; height: 2px; top: 9px; left: 2px; }
.faq-icon::after { width: 2px; height: 16px; left: 9px; top: 2px; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; padding: 0 24px; font-size: .875rem; color: var(--text-muted); line-height: 1.75; }
.faq-item.active .faq-answer { max-height: 320px; padding: 0 24px 22px; }

/* ========== CTA / Contact ========== */
.contact-section { padding: var(--space-section) 0; }
.contact-wrap { background: linear-gradient(130deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: var(--radius-lg); padding: 56px; color: #fff; display: grid; grid-template-columns: 1.2fr .9fr; gap: 56px; box-shadow: 0 20px 50px rgba(27,67,50,.25); }
.contact-title { font-size: 1.875rem; font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.contact-title span { color: var(--accent); }
.contact-desc { color: rgba(255,255,255,.78); font-size: .9375rem; margin-bottom: 28px; line-height: 1.7; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; grid-column: span 1; }
.form-group--full { grid-column: span 2; }
.form-group label { font-size: .8125rem; font-weight: 600; margin-bottom: 6px; color: rgba(255,255,255,.85); }
.form-group label .req { color: var(--accent); }
.form-group input, .form-group select, .form-group textarea { width: 100%; height: 48px; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.08); border-radius: var(--radius-sm); padding: 0 14px; color: #fff; font-size: .875rem; transition: border-color .3s, box-shadow .3s, background .3s; }
.form-group textarea { height: 110px; padding: 12px 14px; resize: vertical; }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23fff' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.form-group select option { color: #1e1e1e; background: #fff; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,.4); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .25); background: rgba(255,255,255,.12); }
.form-footer { grid-column: span 2; display: flex; align-items: center; gap: 16px; margin-top: 4px; }
.form-note { font-size: .75rem; color: rgba(255,255,255,.55); }
.contact-info { display: flex; flex-direction: column; gap: 24px; padding-top: 32px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-item .c-icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(163,230,53,.15); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.contact-info-item h4 { font-size: .875rem; font-weight: 600; margin-bottom: 2px; color: rgba(255,255,255,.9); }
.contact-info-item p { font-size: .875rem; color: rgba(255,255,255,.68); line-height: 1.5; }
.contact-divider { height: 1px; background: rgba(255,255,255,.12); border: none; }

/* ========== Footer ========== */
.site-footer { background: var(--dark); color: rgba(255,255,255,.72); padding: 72px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo .logo-mark { color: var(--accent); }
.footer-brand p { font-size: .875rem; line-height: 1.7; color: rgba(255,255,255,.6); max-width: 320px; }
.footer-col h4 { font-size: .9375rem; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: .875rem; color: rgba(255,255,255,.62); line-height: 2.1; transition: color .2s, padding-left .2s; }
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-col p { font-size: .875rem; color: rgba(255,255,255,.62); line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; font-size: .8125rem; color: rgba(255,255,255,.4); }
.footer-bottom a { color: rgba(255,255,255,.5); }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .hero { min-height: 520px; }
  .section { --space-section: 80px; }
  .cases-grid { grid-template-columns: 1fr 1fr; }
  .case-card:nth-child(1) { grid-column: 1 / 3; grid-row: 1; }
  .case-card:nth-child(2) { grid-column: 1; grid-row: 2; }
  .case-card:nth-child(3) { grid-column: 2; grid-row: 2; }
  .case-card:nth-child(4) { grid-column: 1 / 3; grid-row: 3; }
  .solution-list { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
  .contact-wrap { padding: 40px; gap: 40px; }
}
@media (max-width: 768px) {
  body { padding-top: 56px; }
  .nav-inner { height: 56px; }
  .nav-links { position: fixed; top: 56px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 20px; box-shadow: 0 16px 40px rgba(0,0,0,.1); transform: translateY(-140%); opacity: 0; visibility: hidden; transition: transform .35s ease, opacity .35s ease, visibility .35s; border-bottom: 1px solid var(--border); gap: 4px; z-index: 999; }
  .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a { display: block; padding: 12px 16px; font-size: 1rem; border-radius: var(--radius-md); }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero { min-height: 420px; clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), 0 100%); }
  .hero-inner { padding-bottom: 64px; }
  .hero h1 { font-size: 2rem; }
  .hero-sub { font-size: .9375rem; }
  .hero-metrics { gap: 24px; }
  .hero-metrics .metric-mini strong { font-size: 1.25rem; }
  .section { --space-section: 64px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .service-row { grid-template-columns: 1fr; gap: 24px; margin-bottom: 48px; }
  .service-row:nth-child(even) .service-media { order: 0; }
  .service-row:nth-child(even) .service-body { order: 0; }
  .service-media img { height: 220px; }
  .service-mini-wrap { grid-template-columns: 1fr; margin-top: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .stat-item + .stat-item::before { display: none; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-card:nth-child(1) { grid-column: 1; grid-row: auto; min-height: 300px; }
  .case-card:nth-child(2) { grid-column: 1; grid-row: auto; }
  .case-card:nth-child(3) { grid-column: 1; grid-row: auto; }
  .case-card:nth-child(4) { grid-column: 1; grid-row: auto; }
  .news-row { grid-template-columns: 1fr 40px; gap: 12px; padding: 20px 16px; }
  .news-meta { flex-direction: row; justify-content: space-between; grid-column: span 2; }
  .news-arrow { display: none; }
  .contact-wrap { grid-template-columns: 1fr; padding: 32px 24px; gap: 32px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-group--full { grid-column: span 1; }
  .form-footer { grid-column: span 1; flex-direction: column; align-items: flex-start; }
  .contact-info { padding-top: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item .num { font-size: 2.5rem; }
}

/* roulang page: article */
:root{
  --primary:#1B4332;
  --primary-dark:#112B20;
  --primary-light:#2D6A4F;
  --lime:#A3E635;
  --lime-soft:rgba(163,230,53,.18);
  --bg:#F5F4EF;
  --bg-deep:#1A1A1A;
  --text:#1E1E1E;
  --text-muted:#5B5B5B;
  --border:#E4E2DA;
  --card-radius:20px;
  --box-radius:12px;
  --btn-radius:999px;
  --shadow:0 4px 16px rgba(27,67,50,.08);
  --shadow-hover:0 12px 32px rgba(27,67,50,.16);
  --container:1200px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:1rem;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s,border-color .25s,background .25s,box-shadow .25s}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:1rem}
.container{width:min(var(--container),100% - 64px);margin-inline:auto}
@media(max-width:640px){.container{width:calc(100% - 32px)}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--btn-radius);font-weight:600;border:none;transition:all .3s ease;font-size:.9375rem;line-height:1;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;padding:0 28px;height:52px;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:focus-visible{outline:3px solid var(--lime);outline-offset:2px}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary);padding:0 26px;height:48px}
.btn-outline:hover{background:rgba(27,67,50,.08);border-color:var(--primary-dark);color:var(--primary-dark)}
.btn-outline:focus-visible{outline:3px solid var(--lime);outline-offset:2px}
.btn-white{background:#fff;color:var(--primary);padding:0 28px;height:52px;box-shadow:var(--shadow)}
.btn-white:hover{background:var(--lime);transform:translateY(-2px)}
/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--primary);letter-spacing:-.01em}
.logo em{font-style:normal;color:var(--text)}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);color:var(--lime);display:inline-flex;align-items:center;justify-content:center;font-size:1rem;box-shadow:0 2px 8px rgba(27,67,50,.25)}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a:not(.btn){font-size:.9375rem;font-weight:500;color:var(--text-muted);position:relative;padding:6px 0}
.nav-links a:not(.btn):hover{color:var(--primary)}
.nav-links a:not(.btn).active{color:var(--primary);font-weight:700}
.nav-links a:not(.btn).active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:var(--lime);border-radius:3px}
.nav-links .nav-cta{height:40px;padding:0 22px;font-size:.875rem}
.nav-toggle{display:none;background:none;border:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:6px;border-radius:8px;transition:background .2s}
.nav-toggle:hover{background:rgba(27,67,50,.06)}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-4px) rotate(-45deg)}
@media(max-width:1024px){
  .nav-links{position:fixed;top:72px;right:-100%;width:280px;height:calc(100vh - 72px);background:#fff;flex-direction:column;align-items:flex-start;padding:40px 32px;gap:24px;box-shadow:-8px 0 30px rgba(0,0,0,.1);transition:right .35s ease;border-top:1px solid var(--border)}
  .nav-links.open{right:0}
  .nav-links a:not(.btn){font-size:1.0625rem;width:100%}
  .nav-links .nav-cta{width:100%;justify-content:center}
  .nav-toggle{display:flex}
}
/* ===== Article ===== */
.article-wrapper{padding-top:72px}
.article-banner{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 60%,#0F2419 100%);padding:72px 0 56px;position:relative;overflow:hidden}
.article-banner::before{content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;background:radial-gradient(circle,rgba(163,230,53,.14) 0%,transparent 60%);pointer-events:none}
.article-banner::after{content:"";position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--lime) 0%,var(--lime) 30%,transparent 30%,transparent 50%,var(--lime) 50%,var(--lime) 80%,transparent 80%);opacity:.5}
.article-banner .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8438rem;color:rgba(255,255,255,.7);margin-bottom:24px}
.breadcrumb a{color:rgba(255,255,255,.7)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{opacity:.5;font-size:.75rem}
.breadcrumb .current{color:#fff;max-width:480px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px}
.meta-item{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;color:rgba(255,255,255,.8)}
.meta-item i{color:var(--lime);font-size:.8125rem}
.article-content-wrap{padding:56px 0 80px}
.article-layout{display:grid;grid-template-columns:minmax(0,720px) 1fr;gap:48px;align-items:start}
@media(max-width:1024px){.article-layout{grid-template-columns:1fr}}
.article-main{background:#fff;border-radius:var(--card-radius);box-shadow:var(--shadow);padding:48px;border:1px solid var(--border)}
@media(max-width:640px){.article-main{padding:28px 20px}}
.article-body{max-width:680px;margin:0 auto;font-size:1rem;line-height:1.75;color:var(--text)}
.article-body h1,.article-body h2,.article-body h3{font-weight:700;line-height:1.3;letter-spacing:-.01em;margin:2rem 0 1rem;color:var(--primary)}
.article-body h1{font-size:2rem;margin-top:0}
.article-body h2{font-size:1.5rem}
.article-body h3{font-size:1.125rem}
.article-body p{margin-bottom:1.25rem}
.article-body a{color:var(--primary);border-bottom:1px solid var(--lime)}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary)}
.article-body strong{font-weight:700;color:var(--primary)}
.article-body blockquote{border-left:4px solid var(--lime);background:rgba(163,230,53,.08);padding:16px 20px;margin:1.5rem 0;border-radius:0 8px 8px 0;color:var(--text-muted);font-style:normal}
.article-body blockquote p{margin-bottom:.5rem}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:1.25rem 0;padding-left:1.5rem}
.article-body ul li,.article-body ol li{margin-bottom:.625rem}
.article-body ul li::marker{color:var(--primary)}
.article-body img{border-radius:var(--box-radius);margin:1.5rem 0;box-shadow:var(--shadow)}
.article-body .img-caption{font-size:.875rem;color:var(--text-muted);text-align:center;margin-top:-1rem;margin-bottom:1.5rem}
.article-tags{margin-top:32px;padding-top:24px;border-top:1px dashed var(--border);display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.article-tags span{font-size:.875rem;color:var(--text-muted);font-weight:500}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;font-size:.8125rem;font-weight:500;padding:6px 14px;border-radius:8px;transition:background .2s}
.tag:hover{background:var(--primary-dark)}
.tag i{font-size:.75rem}
/* Sidebar */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
@media(max-width:1024px){.article-side{position:static}}
.side-card{background:#fff;border-radius:16px;padding:28px;border:1px solid var(--border);box-shadow:var(--shadow)}
.side-card h3{font-size:1.125rem;font-weight:700;color:var(--primary);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.side-card h3 i{color:var(--lime);background:rgba(163,230,53,.2);width:32px;height:32px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:.875rem}
.side-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.side-list li a{display:flex;align-items:flex-start;gap:12px;font-size:.9063rem;color:var(--text-muted);line-height:1.5;transition:color .2s}
.side-list li a:hover{color:var(--primary)}
.side-list li a i{margin-top:5px;font-size:.75rem;color:var(--lime);background:rgba(163,230,53,.25);width:20px;height:20px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.side-contact{background:var(--primary);border:none;color:#fff}
.side-contact h3{color:#fff}
.side-contact h3 i{background:rgba(255,255,255,.15);color:var(--lime)}
.side-contact p{font-size:.9063rem;color:rgba(255,255,255,.85);margin-bottom:6px}
.side-contact .btn{margin-top:18px;background:var(--lime);color:var(--primary);height:44px;width:100%;justify-content:center}
.side-contact .btn:hover{background:#B8F04E;transform:translateY(-2px)}
/* Related */
.related-section{padding:64px 0 0}
.related-section .section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px}
.related-section .section-head h2{font-size:1.75rem;font-weight:700;color:var(--text)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.related-grid{grid-template-columns:1fr}}
.related-card{background:#fff;border-radius:var(--box-radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s,border-color .3s;display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(27,67,50,.35)}
.related-card img{width:100%;height:180px;object-fit:cover;transition:transform .4s}
.related-card:hover img{transform:scale(1.03)}
.related-card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.related-card h3{font-size:1.0625rem;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card h3 a:hover{color:var(--primary)}
.related-card p{font-size:.8438rem;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.related-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.related-card .card-foot span{font-size:.8125rem;color:var(--text-muted)}
.related-card .card-foot a{font-size:.8125rem;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.related-card .card-foot a i{transition:transform .2s}
.related-card .card-foot a:hover i{transform:translateX(4px)}
/* CTA */
.cta-section{padding:64px 0 80px}
.cta-wrap{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 80%);border-radius:24px;padding:56px 48px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-wrap::before{content:"";position:absolute;top:-30%;right:-5%;width:300px;height:300px;background:radial-gradient(circle,rgba(163,230,53,.15),transparent 65%)}
.cta-wrap::after{content:"";position:absolute;bottom:-20px;left:10%;width:220px;height:60px;background:rgba(163,230,53,.08);transform:rotate(-12deg);border-radius:20px}
.cta-text{position:relative;z-index:1}
.cta-text h2{color:#fff;font-size:1.875rem;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.cta-text p{color:rgba(255,255,255,.8);font-size:1rem;max-width:520px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:768px){.cta-wrap{flex-direction:column;padding:40px 24px;text-align:center}.cta-text p{margin-inline:auto}.cta-actions{justify-content:center}}
/* Footer */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:.9063rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr}}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo em{color:rgba(255,255,255,.85)}
.footer-brand .logo-mark{background:rgba(163,230,53,.15);color:var(--lime)}
.footer-brand p{max-width:360px;line-height:1.75;font-size:.875rem}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:18px;position:relative;display:inline-block}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:-6px;width:28px;height:3px;background:var(--lime);border-radius:3px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.875rem;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--lime)}
.footer-col p{font-size:.875rem;margin-bottom:8px;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:rgba(255,255,255,.4)}
@media(max-width:640px){.footer-bottom{flex-direction:column;gap:8px;text-align:center}}
/* Empty state */
.post-empty{padding:80px 0;text-align:center}
.post-empty .empty-icon{width:80px;height:80px;border-radius:24px;background:rgba(163,230,53,.15);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:2rem;margin-bottom:20px}
.post-empty h2{font-size:1.75rem;font-weight:700;color:var(--primary);margin-bottom:12px}
.post-empty p{color:var(--text-muted);margin-bottom:24px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
  --primary:#1B4332;
  --primary-dark:#143528;
  --primary-soft:rgba(27,67,50,.06);
  --accent:#A3E635;
  --accent-soft:rgba(163,230,53,.16);
  --bg:#F5F4EF;
  --deep:#1A1A1A;
  --deep-2:#222;
  --text:#1E1E1E;
  --text-weak:#5B5B5B;
  --border:#E4E2DA;
  --white:#FFF;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow:0 4px 16px rgba(27,67,50,.08);
  --shadow-hover:0 12px 32px rgba(27,67,50,.16);
  --container:1200px;
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:1rem}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-head{margin-bottom:52px;max-width:720px}
.section-head .eyebrow{
  display:inline-block;
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--accent-soft);
  padding:4px 16px;
  border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  font-weight:700;
  line-height:1.3;
  color:var(--text);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--text-weak);
  font-size:1rem;
  line-height:1.75;
}
.section-head.center{max-width:none;text-align:center}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:0 28px;
  height:52px;
  border-radius:999px;
  font-size:.9375rem;
  font-weight:600;
  line-height:1;
  transition:all var(--transition);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:var(--white);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(27,67,50,.25);
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline:hover{
  background:var(--primary-soft);
  transform:translateY(-2px);
}
.btn-outline:active{transform:translateY(0)}
.btn-light{
  background:var(--white);
  color:var(--primary);
}
.btn-light:hover{
  background:var(--accent);
  transform:translateY(-2px);
}
.btn-lg{height:52px;padding:0 34px;font-size:1rem}
.btn-sm{height:36px;padding:0 20px;font-size:.875rem}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--transition);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(0,0,0,.08)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  position:relative;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.25rem;
  color:var(--primary);
  letter-spacing:-.01em;
}
.logo-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--primary);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.05rem;
  flex-shrink:0;
  transform:rotate(-4deg);
}
.logo em{
  font-style:normal;
  color:var(--primary);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-links a{
  padding:10px 16px;
  border-radius:999px;
  font-size:.9375rem;
  font-weight:500;
  color:var(--text);
  transition:all var(--transition);
}
.nav-links a:hover{
  color:var(--primary);
  background:var(--primary-soft);
}
.nav-links a.active{
  color:var(--primary);
  background:var(--accent-soft);
  font-weight:600;
}
.nav-links .nav-cta{
  margin-left:8px;
  padding:0 20px;
  height:40px;
  display:inline-flex;
  align-items:center;
  font-size:.875rem;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:8px;
  border-radius:8px;
}
.nav-toggle span{
  width:24px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:all .3s ease;
}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.category-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  padding:120px 0 100px;
  color:var(--white);
  overflow:hidden;
}
.category-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(16,36,28,.92) 0%,rgba(16,36,28,.76) 50%,rgba(16,36,28,.45) 100%);
}
.category-hero::after{
  content:'';
  position:absolute;
  right:-80px;
  bottom:-120px;
  width:380px;
  height:380px;
  border:42px solid rgba(163,230,53,.15);
  border-radius:50%;
}
.category-hero .container{position:relative;z-index:2}
.category-hero .breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:rgba(255,255,255,.75);
  margin-bottom:24px;
}
.category-hero .breadcrumb a{color:rgba(255,255,255,.75)}
.category-hero .breadcrumb a:hover{color:var(--accent)}
.category-hero .breadcrumb i{font-size:.7rem;opacity:.6}
.category-hero h1{
  font-size:clamp(2.2rem,5vw,3.5rem);
  font-weight:800;
  line-height:1.12;
  margin-bottom:18px;
  letter-spacing:-.02em;
}
.category-hero p.lead{
  font-size:clamp(1rem,1.4vw,1.125rem);
  color:rgba(255,255,255,.88);
  max-width:620px;
  line-height:1.75;
  margin-bottom:32px;
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-cta .btn-outline{
  border-color:rgba(255,255,255,.7);
  color:var(--white);
}
.hero-cta .btn-outline:hover{
  background:rgba(255,255,255,.15);
  border-color:var(--white);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:40px;
}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:.8125rem;
  color:rgba(255,255,255,.9);
  backdrop-filter:blur(6px);
}
.hero-tags i{color:var(--accent);font-size:.75rem}

/* Split Section: left image + right panel */
.split-wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.split-image{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  min-height:420px;
}
.split-image img{
  width:100%;
  height:420px;
  object-fit:cover;
  transition:transform .5s ease;
}
.split-image:hover img{transform:scale(1.03)}
.split-image .img-caption{
  position:absolute;
  left:20px;
  bottom:20px;
  background:rgba(15,35,27,.8);
  backdrop-filter:blur(8px);
  color:#fff;
  padding:8px 16px;
  border-radius:999px;
  font-size:.8125rem;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid rgba(255,255,255,.15);
}
.split-image .img-caption i{color:var(--accent)}
.split-panel{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:44px 40px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.split-panel::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:linear-gradient(90deg,var(--primary) 60%,var(--accent) 100%);
}
.split-panel h2{
  font-size:1.625rem;
  font-weight:700;
  line-height:1.3;
  margin-bottom:14px;
}
.split-panel .panel-desc{
  color:var(--text-weak);
  font-size:.9375rem;
  line-height:1.75;
  margin-bottom:24px;
}
.split-list{display:flex;flex-direction:column;gap:12px}
.split-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 16px;
  border-radius:var(--radius-md);
  background:var(--bg);
  border:1px solid var(--border);
  transition:all var(--transition);
  font-size:.9375rem;
  line-height:1.5;
}
.split-list li:hover{
  border-color:var(--primary);
  background:var(--primary-soft);
}
.split-list i{
  color:var(--primary);
  font-size:1rem;
  margin-top:3px;
  flex-shrink:0;
}
.split-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:32px;
  padding-top:28px;
  border-top:1px solid var(--border);
}
.split-stats .stat-item{
  text-align:center;
  padding:12px 8px;
  border-radius:var(--radius-md);
  background:var(--bg);
}
.split-stats .stat-num{
  font-size:1.75rem;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  display:block;
}
.split-stats .stat-num span{font-size:1rem;font-weight:600;margin-left:2px}
.split-stats .stat-label{
  font-size:.75rem;
  color:var(--text-weak);
  margin-top:4px;
  display:block;
}

/* Capability cards */
.capability-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.cap-card{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:34px 32px;
  border:1px solid var(--border);
  position:relative;
  transition:all var(--transition);
  overflow:hidden;
}
.cap-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:rgba(27,67,50,.4);
}
.cap-card::after{
  content:'';
  position:absolute;
  width:80px;
  height:80px;
  right:-30px;
  top:-30px;
  border-radius:50%;
  background:var(--accent-soft);
  transition:transform .3s ease;
}
.cap-card:hover::after{transform:scale(1.4)}
.cap-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  background:var(--primary);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.25rem;
  margin-bottom:20px;
  transform:rotate(-4deg);
}
.cap-card h3{
  font-size:1.125rem;
  font-weight:600;
  margin-bottom:10px;
}
.cap-card p{
  font-size:.9375rem;
  color:var(--text-weak);
  line-height:1.7;
}
.cap-card .link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.875rem;
  font-weight:600;
  color:var(--primary);
  margin-top:18px;
  transition:gap .2s ease;
}
.cap-card .link-more:hover{gap:10px}

/* Scene section */
.scene-section{
  background:var(--deep);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.scene-section::before{
  content:'';
  position:absolute;
  top:-100px;
  right:-100px;
  width:300px;
  height:300px;
  background:rgba(163,230,53,.08);
  border-radius:50%;
}
.scene-section::after{
  content:'';
  position:absolute;
  bottom:-80px;
  left:-60px;
  width:240px;
  height:240px;
  border:2px solid rgba(255,255,255,.06);
  border-radius:50%;
}
.scene-section .section-head h2{color:#fff}
.scene-section .section-head p{color:rgba(255,255,255,.7)}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
  z-index:2;
}
.scene-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  transition:all var(--transition);
  backdrop-filter:blur(4px);
}
.scene-card:hover{
  background:rgba(255,255,255,.1);
  border-color:rgba(163,230,53,.4);
  transform:translateY(-4px);
}
.scene-card .scene-num{
  font-size:.8125rem;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:12px;
  display:block;
}
.scene-card h3{
  font-size:1.0625rem;
  font-weight:600;
  margin-bottom:10px;
}
.scene-card p{
  font-size:.875rem;
  color:rgba(255,255,255,.65);
  line-height:1.65;
}

/* Process timeline */
.process-wrap{
  max-width:760px;
  margin:0 auto;
  position:relative;
  padding-left:0;
}
.process-wrap::before{
  content:'';
  position:absolute;
  left:28px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,var(--accent) 100%);
  border-radius:2px;
}
.process-item{
  position:relative;
  padding-left:76px;
  padding-bottom:44px;
}
.process-item:last-child{padding-bottom:0}
.process-item .dot{
  position:absolute;
  left:14px;
  top:2px;
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--white);
  border:3px solid var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.75rem;
  font-weight:700;
  color:var(--primary);
  z-index:2;
}
.process-item .dot.done{background:var(--accent);border-color:var(--accent);color:var(--deep)}
.process-item h3{
  font-size:1.1875rem;
  font-weight:600;
  margin-bottom:6px;
}
.process-item p{
  font-size:.9375rem;
  color:var(--text-weak);
  line-height:1.7;
}

/* FAQ */
.faq-wrap{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  margin-bottom:14px;
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  background:var(--white);
  overflow:hidden;
  transition:all var(--transition);
}
.faq-item:hover{border-color:rgba(27,67,50,.3)}
.faq-item.open{
  border-color:rgba(27,67,50,.3);
  background:var(--primary-soft);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 24px;
  font-size:1rem;
  font-weight:600;
  cursor:pointer;
  user-select:none;
  gap:16px;
  transition:background var(--transition);
}
.faq-q:hover{background:rgba(27,67,50,.05)}
.faq-item.open .faq-q{background:transparent}
.faq-q .icon{
  width:30px;
  height:30px;
  border-radius:50%;
  border:2px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.75rem;
  color:var(--text-weak);
  transition:all .3s ease;
  flex-shrink:0;
}
.faq-item.open .faq-q .icon{
  transform:rotate(45deg);
  background:var(--primary);
  border-color:var(--primary);
  color:var(--white);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-item.open .faq-a{max-height:300px}
.faq-a-inner{
  padding:0 24px 22px;
  color:var(--text-weak);
  font-size:.9375rem;
  line-height:1.75;
}

/* CTA */
.cta-section{
  background:var(--primary);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  width:420px;
  height:420px;
  border-radius:50%;
  background:rgba(163,230,53,.1);
  top:-180px;
  right:-100px;
}
.cta-section::after{
  content:'';
  position:absolute;
  width:260px;
  height:260px;
  border:36px solid rgba(255,255,255,.06);
  border-radius:50%;
  bottom:-100px;
  left:-60px;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:56px;
  position:relative;
  z-index:2;
  align-items:center;
}
.cta-left h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  font-weight:700;
  line-height:1.3;
  margin-bottom:18px;
  color:#fff;
}
.cta-left p{
  color:rgba(255,255,255,.8);
  margin-bottom:28px;
  max-width:480px;
  line-height:1.75;
}
.cta-contact{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-top:24px;
}
.cta-contact .contact-item{
  display:flex;
  align-items:center;
  gap:14px;
  background:rgba(255,255,255,.08);
  border-radius:var(--radius-md);
  padding:12px 20px;
  font-size:.9375rem;
  color:rgba(255,255,255,.9);
  backdrop-filter:blur(4px);
  border:1px solid rgba(255,255,255,.1);
}
.cta-contact .contact-item i{
  color:var(--accent);
  font-size:1.0625rem;
  width:24px;
  text-align:center;
}
.cta-form{
  background:rgba(255,255,255,.1);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:36px 32px;
}
.cta-form h3{
  font-size:1.25rem;
  font-weight:600;
  color:#fff;
  margin-bottom:24px;
}
.cta-form .form-group{margin-bottom:18px}
.cta-form label{
  display:block;
  font-size:.8125rem;
  font-weight:500;
  color:rgba(255,255,255,.75);
  margin-bottom:8px;
}
.cta-form label .req{color:var(--accent);margin-left:2px}
.cta-form input,
.cta-form select,
.cta-form textarea{
  width:100%;
  height:48px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.95);
  padding:0 16px;
  font-size:.9375rem;
  color:var(--text);
  outline:none;
  transition:all var(--transition);
}
.cta-form textarea{
  height:auto;
  min-height:96px;
  padding:12px 16px;
  resize:vertical;
}
.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(163,230,53,.25);
}
.cta-form .btn{width:100%;margin-top:4px}
.form-note{
  font-size:.75rem;
  color:rgba(255,255,255,.5);
  margin-top:12px;
  text-align:center;
}
.btn-loading{position:relative;pointer-events:none;opacity:.7}
.btn-loading::after{
  content:'';
  width:16px;height:16px;
  border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;
  border-radius:50%;
  animation:spin .8s linear infinite;
  margin-left:10px;
  display:inline-block;
  vertical-align:middle;
}
@keyframes spin{to{transform:rotate(360deg)}}
.form-success{
  background:rgba(163,230,53,.18);
  border:1px solid var(--accent);
  color:#fff;
  padding:16px;
  border-radius:var(--radius-md);
  font-size:.9375rem;
  text-align:center;
  margin-bottom:16px;
  display:none;
}
.form-error{
  background:rgba(255,180,130,.15);
  border:1px solid rgba(255,180,130,.5);
  color:#fff;
  padding:16px;
  border-radius:var(--radius-md);
  font-size:.9375rem;
  text-align:center;
  margin-bottom:16px;
  display:none;
}

/* Footer */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.75);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo em{color:#fff}
.footer-brand .logo-mark{background:var(--accent);color:var(--primary)}
.footer-brand p{
  font-size:.875rem;
  line-height:1.75;
  color:rgba(255,255,255,.6);
  max-width:360px;
  margin-top:16px;
}
.footer-col h4{
  font-size:.9375rem;
  font-weight:600;
  color:#fff;
  margin-bottom:20px;
}
.footer-col a{
  display:block;
  padding:6px 0;
  font-size:.875rem;
  color:rgba(255,255,255,.6);
  transition:all var(--transition);
}
.footer-col a:hover{
  color:var(--accent);
  transform:translateX(4px);
}
.footer-col p{
  font-size:.875rem;
  color:rgba(255,255,255,.6);
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-col i{color:var(--accent);width:16px;text-align:center}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:28px 0;
  flex-wrap:wrap;
  gap:8px;
  font-size:.8125rem;
  color:rgba(255,255,255,.4);
}

/* Mobile nav drawer */
@media(max-width:768px){
  .nav-links{
    display:none;
    position:absolute;
    top:72px;
    left:0;
    right:0;
    background:rgba(255,255,255,.98);
    flex-direction:column;
    padding:20px 16px 24px;
    border-bottom:1px solid var(--border);
    box-shadow:0 20px 40px rgba(0,0,0,.12);
    gap:6px;
  }
  .nav-links.open{display:flex}
  .nav-links a{
    display:block;
    text-align:center;
    padding:12px;
    font-size:1rem;
  }
  .nav-links .nav-cta{
    margin-left:0;
    margin-top:8px;
    height:44px;
    justify-content:center;
  }
  .nav-toggle{display:flex}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .split-wrap{grid-template-columns:1fr;gap:32px}
  .split-image,.split-image img{min-height:300px;height:300px}
  .split-panel{padding:32px 24px}
  .capability-grid{grid-template-columns:1fr;gap:16px}
  .scene-grid{grid-template-columns:1fr 1fr;gap:14px}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .process-wrap::before{left:20px}
  .process-item{padding-left:64px}
  .process-item .dot{left:8px}
  .split-stats{gap:8px}
  .split-stats .stat-num{font-size:1.375rem}
  .category-hero{padding:80px 0 64px}
  .hero-cta .btn{width:100%}
  .hero-tags span{font-size:.75rem}
}
@media(max-width:520px){
  .scene-grid{grid-template-columns:1fr}
  .cta-form{padding:28px 20px}
  .footer-bottom{justify-content:center;text-align:center}
  .category-hero h1{font-size:2rem}
  .split-stats{grid-template-columns:repeat(3,1fr)}
  .split-stats .stat-num{font-size:1.125rem}
  .split-stats .stat-num span{font-size:.8125rem}
  .split-stats .stat-label{font-size:.6875rem}
  .hero-cta{gap:12px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #1B4332;
  --primary-dark: #142F24;
  --primary-light: #2D6A4F;
  --accent: #A3E635;
  --accent-dark: #7AC427;
  --bg: #F5F4EF;
  --dark: #1A1A1A;
  --text: #1E1E1E;
  --muted: #5B5B5B;
  --border: #E4E2DA;
  --white: #FFFFFF;
  --radius-lg: 20px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow: 0 4px 16px rgba(27, 67, 50, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 67, 50, 0.16);
  --container: 1200px;
  --gutter: 32px;
  --section-pad: 96px;
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}

ul,
ol {
  list-style: none;
}

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

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

.section-pad {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s cubic-bezier(0.2, 0.7, 0.3, 1);
  min-height: 44px;
  padding: 0 28px;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  line-height: 1;
}

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

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

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

.btn-outline:hover {
  background: rgba(27, 67, 50, 0.08);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-lg {
  min-height: 52px;
  padding: 0 36px;
  font-size: 1rem;
}

.btn-sm {
  min-height: 36px;
  padding: 0 18px;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.btn:focus-visible {
  outline: 3px solid rgba(163, 230, 53, 0.5);
  outline-offset: 2px;
}

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.35s ease;
}

.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.09);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: var(--accent);
  font-size: 1rem;
  box-shadow: 0 4px 10px rgba(27, 67, 50, 0.25);
}

.logo em {
  font-style: normal;
  color: var(--primary-dark);
}

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

.nav-links > a {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  color: var(--text);
  font-size: 0.9375rem;
  transition: all 0.25s ease;
  position: relative;
  white-space: nowrap;
}

.nav-links > a:hover {
  color: var(--primary);
  background: rgba(27, 67, 50, 0.06);
}

.nav-links > a.active {
  color: var(--primary);
  font-weight: 700;
  background: rgba(27, 67, 50, 0.08);
}

.nav-links > a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

.nav-links .nav-cta {
  padding-left: 24px;
  padding-right: 24px;
  font-size: 0.875rem;
  min-height: 38px;
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2.5px;
  border-radius: 4px;
  background: var(--primary);
  transition: all 0.35s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

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

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ============ Hero ============ */
.category-hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  padding: 140px 0 110px;
  overflow: hidden;
  background: var(--primary-dark);
}

.category-hero .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.category-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(20, 47, 36, 0.96) 25%, rgba(20, 47, 36, 0.75) 60%, rgba(20, 47, 36, 0.45));
}

.category-hero .hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin-left: 0;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 24px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s;
}

.hero-breadcrumb a:hover {
  color: var(--accent);
}

.hero-breadcrumb i {
  font-size: 0.65rem;
  color: var(--accent);
}

.category-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 20px;
}

.category-hero h1 .accent-text {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.category-hero .hero-desc {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 34px;
  max-width: 560px;
}

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

.hero-actions .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary-dark);
}

.hero-actions .btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  box-shadow: 0 12px 30px rgba(163, 230, 53, 0.3);
}

.hero-actions .btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
}

.hero-actions .btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.category-hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 70px;
  background: var(--bg);
  clip-path: polygon(0 100%, 100% 100%, 100% 0, 0 60%);
  z-index: 2;
}

/* ============ 区块标题 ============ */
.section-header {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: rgba(27, 67, 50, 0.08);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
  color: var(--text);
}

.section-header p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.section-header.light h2 {
  color: #fff;
}

.section-header.light p {
  color: rgba(255, 255, 255, 0.75);
}

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

/* ============ 卖点 ============ */
.features {
  padding: var(--section-pad) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
}

.features-intro .feature-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}

.features-intro .feature-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.features-intro .feature-visual::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background: linear-gradient(to top, rgba(20, 47, 36, 0.55), transparent);
}

.features-intro .feature-visual-caption {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 2;
  color: #fff;
  font-weight: 700;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.features-intro .feature-visual-caption i {
  color: var(--accent);
  font-size: 1.25rem;
}

.feature-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.3s;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(27, 67, 50, 0.3);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card.full {
  grid-column: span 2;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.feature-card .feat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(27, 67, 50, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.feature-card.full .feat-icon {
  margin-bottom: 0;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.feature-card p {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* ============ 场景 ============ */
.scenarios {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--section-pad) 0;
}

.scene-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  grid-auto-rows: 250px;
  gap: 24px;
}

.scene-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--primary-dark);
  cursor: pointer;
  transition: box-shadow 0.3s ease;
}

.scene-card:first-child {
  grid-row: span 2;
}

.scene-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.3, 1);
  opacity: 0.8;
}

.scene-card:hover img {
  transform: scale(1.04);
}

.scene-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 47, 36, 0.85) 10%, rgba(20, 47, 36, 0.2) 60%, transparent);
  transition: background 0.3s;
}

.scene-card:hover::after {
  background: linear-gradient(to top, rgba(20, 47, 36, 0.9) 10%, rgba(20, 47, 36, 0.25) 60%, transparent);
}

.scene-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  z-index: 2;
  color: #fff;
}

.scene-content .scene-tag {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.scene-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.35;
}

.scene-content p {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
}

.scene-card:nth-child(2),
.scene-card:nth-child(3),
.scene-card:nth-child(4) {
  grid-column: span 1;
}

/* ============ 时间线 ============ */
.process {
  background: var(--dark);
  padding: var(--section-pad) 0;
  position: relative;
  overflow: hidden;
}

.process::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(163, 230, 53, 0.08), transparent 70%);
}

.timeline {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 0;
}

.tl-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 4px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom, var(--accent), var(--primary-light));
  border-radius: 4px;
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 52px 56px 0;
}

.timeline-item.right {
  margin-left: 50%;
  padding: 0 0 56px 52px;
}

.tl-node {
  position: absolute;
  top: 32px;
  right: -24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 0 6px rgba(163, 230, 53, 0.15);
}

.timeline-item.right .tl-node {
  left: -24px;
  right: auto;
}

.tl-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.35s ease;
}

.tl-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(163, 230, 53, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.tl-card .tl-step {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.tl-card h3 {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.tl-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ============ 数据 ============ */
.stats {
  background: var(--primary-dark);
  padding: 76px 0;
  position: relative;
  overflow: hidden;
}

.stats::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(163, 230, 53, 0.12), transparent 65%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 20px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item .stat-num {
  font-size: clamp(2.75rem, 5vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.stat-item .stat-num em {
  font-style: normal;
  color: var(--accent);
}

.stat-item .stat-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

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

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

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(27, 67, 50, 0.25);
}

.faq-item.open {
  border-color: rgba(27, 67, 50, 0.3);
  box-shadow: var(--shadow);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 28px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  transition: background 0.25s ease;
  user-select: none;
}

.faq-q:hover {
  background: rgba(27, 67, 50, 0.03);
}

.faq-item.open .faq-q {
  background: rgba(27, 67, 50, 0.04);
  color: var(--primary);
}

.faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(27, 67, 50, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.35s ease, background 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: var(--accent);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-a-inner {
  padding: 0 28px 24px;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* ============ CTA / 联系 ============ */
.contact-cta {
  padding: var(--section-pad) 0;
  background: #fff;
  border-top: 1px solid var(--border);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.contact-info > p {
  color: var(--muted);
  margin-bottom: 36px;
  max-width: 440px;
}

.contact-list {
  margin-bottom: 20px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-list .c-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(27, 67, 50, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  font-size: 1rem;
}

.contact-list .c-label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 500;
}

.contact-list .c-value {
  font-weight: 600;
  color: var(--text);
}

.contact-form-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text);
}

.form-group label .required {
  color: #d1495b;
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  outline: none;
}

.form-group textarea {
  height: auto;
  min-height: 120px;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(163, 230, 53, 0.25);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #A9A9A9;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit-wrap {
  margin-top: 8px;
}

.btn-submit {
  width: 100%;
  min-height: 52px;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--primary);
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

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

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-submit.loading {
  pointer-events: none;
  color: transparent;
}

.btn-submit.loading::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-feedback {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.form-feedback.success {
  display: block;
  background: rgba(27, 67, 50, 0.08);
  color: var(--primary);
  border: 1px solid rgba(27, 67, 50, 0.2);
}

.form-feedback.error {
  display: block;
  background: rgba(220, 38, 38, 0.08);
  color: #b91c1c;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 76px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

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

.footer-brand .logo-mark {
  background: rgba(255, 255, 255, 0.12);
  color: var(--accent);
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

.footer-col a,
.footer-col p {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.875rem;
  margin-bottom: 12px;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
  .features-grid {
    gap: 40px;
  }

  .stats-grid {
    gap: 24px;
  }
}

@media (max-width: 1024px) {
  :root {
    --gutter: 24px;
    --section-pad: 80px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .features-intro .feature-visual img {
    height: 340px;
  }

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

  .scene-card:first-child {
    grid-column: span 2;
    grid-row: span 1;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .timeline {
    max-width: 720px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .stat-item {
    border-right: none;
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --section-pad: 64px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 28px 40px;
    gap: 8px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.15);
    z-index: 999;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links > a {
    width: 100%;
    font-size: 1rem;
    border-radius: 10px;
    padding: 14px 16px;
  }

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

  .nav-links .nav-cta {
    margin: 12px 0 0;
    width: 100%;
    justify-content: center;
  }

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

  .category-hero {
    min-height: 480px;
    padding: 110px 0 80px;
  }

  .category-hero h1 {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .feature-cards {
    grid-template-columns: 1fr;
  }

  .feature-card.full {
    grid-column: span 1;
    flex-direction: column;
  }

  .scene-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }

  .scene-card:first-child {
    grid-column: span 1;
    grid-row: span 1;
  }

  .timeline {
    padding-left: 0;
  }

  .tl-line {
    left: 24px;
    transform: none;
  }

  .timeline-item,
  .timeline-item.right {
    width: 100%;
    margin-left: 0;
    padding: 0 0 40px 64px;
  }

  .timeline-item .tl-node,
  .timeline-item.right .tl-node {
    left: 2px;
    right: auto;
  }

  .contact-form-card {
    padding: 28px 22px;
  }

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

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

@media (max-width: 520px) {
  :root {
    --gutter: 16px;
    --section-pad: 56px;
  }

  .nav-inner {
    min-height: 64px;
  }

  .logo {
    font-size: 1.1rem;
  }

  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }

  .category-hero {
    min-height: 420px;
    padding: 100px 0 70px;
  }

  .category-hero h1 {
    font-size: 1.75rem;
  }

  .category-hero .hero-desc {
    font-size: 0.9375rem;
  }

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

  .stat-item {
    padding: 12px 8px;
  }

  .stat-item .stat-num {
    font-size: 2.25rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .faq-q {
    padding: 18px 18px;
    font-size: 0.9375rem;
  }

  .faq-a-inner {
    padding: 0 18px 20px;
  }

  .timeline-item,
  .timeline-item.right {
    padding-left: 52px;
  }

  .tl-card {
    padding: 22px;
  }

  .tl-card h3 {
    font-size: 1.125rem;
  }

  .contact-info h2 {
    font-size: 1.625rem;
  }
}

/* roulang page: category3 */
:root{
  --primary:#1B4332;
  --primary-dark:#112F23;
  --primary-soft:rgba(27,67,50,.06);
  --accent:#A3E635;
  --accent-dark:#7BC41F;
  --accent-soft:rgba(163,230,53,.22);
  --bg:#F5F4EF;
  --dark:#1A1A1A;
  --dark-2:#242424;
  --text:#1E1E1E;
  --text-light:#5B5B5B;
  --text-muted:#8A8A8A;
  --border:#E4E2DA;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow:0 4px 16px rgba(27,67,50,.08);
  --shadow-lg:0 12px 32px rgba(27,67,50,.16);
  --container:1200px;
  --space-section:96px;
  --space-section-md:64px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
button{font-family:var(--font);cursor:pointer;border:none;background:none}
input,select,textarea{font-family:var(--font);font-size:15px}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding-top:var(--space-section);padding-bottom:var(--space-section)}
.section-head{margin-bottom:52px}
.section-head .eyebrow{display:inline-block;background:var(--accent-soft);color:var(--primary);font-size:14px;font-weight:600;padding:6px 16px;border-radius:var(--radius-pill);letter-spacing:.04em;margin-bottom:16px}
.section-head h2{font-size:clamp(1.75rem,3vw,2.25rem);font-weight:700;line-height:1.3;color:var(--text);margin-bottom:14px}
.section-head p{color:var(--text-light);max-width:680px;font-size:1rem}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 28px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;transition:all .28s ease;line-height:1;white-space:nowrap}
.btn-lg{height:52px;padding:0 36px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-2px);color:var(--primary-dark)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--accent);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow .3s ease}
.site-header.scrolled{box-shadow:0 8px 28px rgba(27,67,50,.10)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--text);line-height:1}
.logo em{font-style:normal;color:var(--primary)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:var(--primary);border-radius:10px;color:var(--accent);font-size:18px;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:10px 16px;font-size:15px;font-weight:500;color:var(--text-light);border-radius:8px;transition:all .25s ease}
.nav-links a:hover{color:var(--primary);background:var(--primary-soft)}
.nav-links a.active{color:var(--primary);background:var(--primary-soft);font-weight:600}
.nav-links .nav-cta{margin-left:8px;padding:0 22px}
.nav-links .nav-cta:hover{background:var(--primary-dark);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:6px;width:44px;height:44px;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all .3s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Hero */
.category-hero{position:relative;padding:88px 0 96px;color:#fff;overflow:hidden}
.category-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.category-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(27,67,50,.92) 0%,rgba(17,47,35,.78) 55%,rgba(17,47,35,.64) 100%)}
.category-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:36px}
.breadcrumb a{color:rgba(255,255,255,.88)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{opacity:.6}
.category-hero h1{font-size:clamp(2.1rem,5vw,3.25rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:20px}
.category-hero .lead{font-size:clamp(1rem,1.8vw,1.2rem);color:rgba(255,255,255,.9);max-width:640px;margin-bottom:38px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-slash{position:absolute;bottom:-1px;left:0;width:100%;height:70px;background:var(--bg);clip-path:polygon(0 0,100% 100%,100% 100%,0 100%);z-index:1}
.hero-slash{clip-path:polygon(0 0,100% 100%,0 100%)}

/* 面包屑和版面共用 */
.page-main{background:var(--bg)}

/* 混合布局：能力区 */
.capability-layout{display:grid;grid-template-columns:1fr 380px;gap:32px;align-items:start}
.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cap-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 26px;transition:all .3s ease;position:relative;overflow:hidden}
.cap-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--accent);transition:height .35s ease}
.cap-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:rgba(27,67,50,.3)}
.cap-card:hover::before{height:100%}
.cap-card .cap-icon{width:54px;height:54px;border-radius:14px;background:var(--primary-soft);color:var(--primary);font-size:22px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;transition:all .3s ease}
.cap-card:hover .cap-icon{background:var(--primary);color:var(--accent)}
.cap-card h3{font-size:1.2rem;font-weight:600;margin-bottom:10px}
.cap-card p{font-size:.95rem;color:var(--text-light);line-height:1.75}

/* 侧栏 */
.side-panel{background:var(--primary);color:#fff;border-radius:var(--radius-lg);padding:32px 28px;position:sticky;top:100px}
.side-panel h3{font-size:1.25rem;font-weight:700;margin-bottom:26px;position:relative;padding-bottom:14px}
.side-panel h3::after{content:"";position:absolute;left:0;bottom:0;width:42px;height:3px;background:var(--accent);border-radius:2px}
.side-panel .panel-block{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.14)}
.side-panel .panel-block:last-of-type{border-bottom:none;margin-bottom:0;padding-bottom:0}
.side-panel h4{font-size:.95rem;font-weight:600;color:var(--accent);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-panel ul li{font-size:.92rem;color:rgba(255,255,255,.84);padding:7px 0 7px 22px;position:relative;line-height:1.6}
.side-panel ul li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:7px;color:var(--accent);font-size:12px}
.side-panel .panel-cta{margin-top:26px;display:block;text-align:center}

/* 场景区 非对称 */
.scene-grid{display:grid;grid-template-columns:1.3fr .7fr;grid-template-rows:auto auto;gap:24px}
.scene-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s ease}
.scene-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.scene-card-lg{grid-column:1;grid-row:1/3;display:grid;grid-template-rows:auto 1fr}
.scene-card-lg .scene-img{height:240px;overflow:hidden}
.scene-card-lg .scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card-lg:hover .scene-img img{transform:scale(1.03)}
.scene-card:not(.scene-card-lg) .scene-img{height:140px;overflow:hidden}
.scene-card:not(.scene-card-lg) .scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-img img{transform:scale(1.03)}
.scene-body{padding:26px}
.scene-body h3{font-size:1.16rem;font-weight:600;margin-bottom:10px}
.scene-body p{font-size:.93rem;color:var(--text-light);line-height:1.75;margin-bottom:14px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}
.scene-tags span{background:var(--accent-soft);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-sm)}

/* 流程区 */
.flow-section{background:var(--dark);color:#fff;position:relative;overflow:hidden}
.flow-section::before{content:"";position:absolute;top:-120px;right:-80px;width:340px;height:340px;background:rgba(163,230,53,.08);border-radius:50%}
.flow-section .section-head h2{color:#fff}
.flow-section .section-head p{color:rgba(255,255,255,.68)}
.flow-timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;z-index:2}
.flow-step{padding:0 18px;position:relative;text-align:center}
.flow-step:not(:last-child)::after{content:"";position:absolute;top:30px;right:-2px;width:20px;height:2px;background:rgba(163,230,53,.4)}
.flow-step .step-num{width:60px;height:60px;border-radius:50%;background:rgba(163,230,53,.12);border:2px solid var(--accent);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-size:1.35rem;font-weight:800;margin-bottom:18px}
.flow-step h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:#fff}
.flow-step p{font-size:.85rem;color:rgba(255,255,255,.65);line-height:1.65}

/* 数据成果区 */
.stats-section{background:linear-gradient(135deg,var(--dark) 0%,#102619 100%);padding:80px 0;border-top:1px solid rgba(255,255,255,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.stat-item{position:relative}
.stat-item::after{content:"";position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:26px;height:3px;background:var(--accent);border-radius:2px}
.stat-num{display:block;font-size:clamp(2.6rem,5vw,4rem);font-weight:800;color:#fff;line-height:1.1;margin-bottom:10px}
.stat-num em{font-style:normal;color:var(--accent)}
.stat-label{font-size:.95rem;color:rgba(255,255,255,.7)}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:border-color .3s ease,box-shadow .3s ease}
.faq-item:hover{border-color:rgba(27,67,50,.28)}
.faq-item.open{border-color:rgba(27,67,50,.2);box-shadow:var(--shadow)}
.faq-question{width:100%;text-align:left;padding:22px 24px;font-size:1.02rem;font-weight:600;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:16px;transition:background .3s ease}
.faq-item.open .faq-question{background:var(--primary-soft);color:var(--primary-dark)}
.faq-question .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:14px;transition:all .3s ease}
.faq-item.open .faq-icon{background:var(--primary);color:var(--accent);transform:rotate(135deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer p{padding:0 24px 22px;color:var(--text-light);font-size:.95rem;line-height:1.85}

/* CTA 联系 */
.contact-section{background:var(--dark);position:relative;overflow:hidden}
.contact-section::before{content:"";position:absolute;top:0;right:0;width:420px;height:420px;background:radial-gradient(circle,rgba(163,230,53,.1),transparent 70%)}
.contact-section .section-head h2{color:#fff}
.contact-section .section-head p{color:rgba(255,255,255,.65)}
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;position:relative;z-index:2}
.contact-info{color:#fff}
.contact-info h3{font-size:1.4rem;font-weight:700;margin-bottom:18px}
.contact-info>p{color:rgba(255,255,255,.7);margin-bottom:30px;line-height:1.8}
.contact-item{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start}
.contact-item .ci-icon{width:44px;height:44px;border-radius:12px;background:rgba(163,230,53,.12);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.contact-item span{display:block;font-size:.86rem;color:rgba(255,255,255,.55);margin-bottom:2px}
.contact-item strong{font-size:1rem;color:#fff;font-weight:600}
.contact-time{margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12)}
.contact-time p{font-size:.9rem;color:rgba(255,255,255,.65)}
.contact-form{background:#fff;border-radius:var(--radius-lg);padding:36px 34px;box-shadow:var(--shadow-lg)}
.contact-form h3{font-size:1.25rem;font-weight:700;margin-bottom:6px;color:var(--text)}
.contact-form .form-desc{font-size:.9rem;color:var(--text-light);margin-bottom:26px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:8px}
.form-group label .req{color:#D9534F;margin-left:2px}
.form-group input,.form-group select,.form-group textarea{width:100%;height:48px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 16px;font-size:15px;color:var(--text);transition:border-color .25s ease,box-shadow .25s ease;background:#fff}
.form-group textarea{height:110px;padding:12px 16px;resize:vertical}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--accent-soft)}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235B5B5B' d='M6 8L0 0h12L6 8z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.form-submit{width:100%}
.form-submit .btn{width:100%}
.btn.is-loading{opacity:.75;pointer-events:none}
.btn.is-loading::after{content:"";width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin-left:8px}
.btn.is-success{background:var(--accent);color:var(--primary-dark)}
.btn.is-error{background:#DC3545;color:#fff}
@keyframes spin{to{transform:rotate(360deg)}}
.form-feedback{font-size:.88rem;margin-top:12px;display:none}
.form-feedback.success{display:block;color:#2D8A4E}
.form-feedback.error{display:block;color:#DC3545}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 0;border-top:4px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:.93rem;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:18px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.93rem;padding:5px 0;transition:color .25s ease}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:.93rem;color:rgba(255,255,255,.6);padding:3px 0;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.85rem;color:rgba(255,255,255,.45)}

/* 响应式 */
@media(max-width:1024px){
  .capability-layout{grid-template-columns:1fr}
  .side-panel{position:static}
  .scene-grid{grid-template-columns:1fr 1fr}
  .scene-card-lg{grid-column:1/-1;grid-row:auto}
  .flow-timeline{grid-template-columns:repeat(3,1fr);gap:32px 16px}
  .flow-step:nth-child(4),.flow-step:nth-child(5){margin-top:0}
  .flow-step:not(:last-child)::after{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-wrap{grid-template-columns:1fr}
}
@media(max-width:768px){
  .container{padding:0 16px}
  .section{padding-top:var(--space-section-md);padding-bottom:var(--space-section-md)}
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px;box-shadow:var(--shadow-lg);border-bottom:1px solid var(--border);display:none;max-height:calc(100vh - 72px);overflow-y:auto}
  .nav-links.show{display:flex}
  .nav-links a{padding:14px 16px;font-size:16px;border-radius:10px}
  .nav-links .nav-cta{margin-left:0;margin-top:8px}
  .nav-toggle{display:flex}
  .category-hero{padding:60px 0 72px}
  .category-hero h1{font-size:2rem}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .card-grid{grid-template-columns:1fr}
  .capability-layout{gap:24px}
  .scene-grid{grid-template-columns:1fr}
  .scene-card-lg .scene-img{height:200px}
  .flow-timeline{grid-template-columns:1fr;gap:32px}
  .flow-step{text-align:left;display:grid;grid-template-columns:60px 1fr;gap:0 18px}
  .flow-step .step-num{margin-bottom:0}
  .flow-step h3{margin-bottom:4px}
  .flow-step p{margin-top:6px}
  .flow-step:not(:last-child)::after{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .contact-wrap{gap:32px}
  .contact-form{padding:26px 20px}
}
@media(max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:32px 16px}
  .stat-num{font-size:2.4rem}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center}
  .contact-item{flex-direction:column}
}