/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --color-primary: #0E7C66;
  --color-primary-light: #2FA88B;
  --color-primary-dark: #0A5646;
  --color-accent: #F5A524;
  --color-accent-light: #FFC53D;
  --color-bg: #F6F5F0;
  --color-surface: #FFFFFF;
  --color-text: #172620;
  --color-text-soft: #5E726B;
  --color-border: #E3EBE6;
  --gradient-brand: linear-gradient(135deg, #0E7C66 0%, #2FA88B 55%, #7FCFB5 100%);
  --gradient-accent: linear-gradient(135deg, #F5A524 0%, #FFC53D 100%);
  --gradient-data: linear-gradient(135deg, #0A5646 0%, #0E7C66 100%);
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(14, 124, 102, 0.10);
  --shadow-card-hover: 0 18px 44px rgba(14, 124, 102, 0.18);
  --shadow-accent: 0 8px 24px rgba(245, 165, 36, 0.30);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --container-max: 1200px;
  --space-section: clamp(72px, 10vw, 112px);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.6; font-size: 16px; }
ul, ol { list-style: none; }
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
img { max-width: 100%; display: block; height: auto; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
table { border-collapse: collapse; width: 100%; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

/* ===== Utility ===== */
.section-head { margin-bottom: 48px; }
.section-eyebrow { display: inline-block; font-size: 13px; letter-spacing: 0.08em; color: var(--color-primary); font-weight: 600; background: rgba(14,124,102,0.08); padding: 6px 16px; border-radius: var(--radius-pill); margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.5vw, 40px); line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; color: var(--color-text); margin-bottom: 12px; }
.section-desc { font-size: 16px; color: var(--color-text-soft); max-width: 680px; line-height: 1.7; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 30px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 600; line-height: 1; transition: all 0.25s ease; white-space: nowrap; }
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: var(--shadow-card); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(14,124,102,0.15); }
.btn-accent { background: var(--gradient-accent); color: #241A05; box-shadow: var(--shadow-accent); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(245,165,36,0.40); }
.btn-accent:active { transform: translateY(0); }
.btn-outline { background: transparent; border: 1.5px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: rgba(14,124,102,0.06); border-color: var(--color-primary-dark); color: var(--color-primary-dark); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid rgba(14,124,102,0.30); outline-offset: 2px; }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); }
.nav-wrapper { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--color-text); letter-spacing: 0.01em; }
.brand-badge { width: 38px; height: 38px; border-radius: 12px; background: var(--gradient-data); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; font-weight: 700; box-shadow: 0 4px 14px rgba(14,124,102,0.25); }
.brand:hover { color: var(--color-primary); }
.brand span { font-weight: 600; font-size: 18px; }
.nav-list { display: flex; align-items: center; gap: 34px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--color-text); letter-spacing: 0.02em; position: relative; padding: 8px 0; }
.nav-link::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--gradient-brand); border-radius: 2px; transition: width 0.3s ease; }
.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.nav-link.active::after { width: 100%; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; background: var(--color-surface); border: 1px solid var(--color-border); }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--color-text); border-radius: 2px; transition: all 0.3s 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); }
.mobile-panel { display: none; background: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 24px 0 32px; }
.mobile-panel.open { display: block; }
.mobile-panel a { display: block; padding: 14px 0; font-size: 18px; font-weight: 500; border-bottom: 1px solid #F0F4F2; color: var(--color-text); text-align: center; }
.mobile-panel a:last-child { border-bottom: none; }
.mobile-panel a.active { color: var(--color-primary); font-weight: 600; }
.mobile-panel a:hover { color: var(--color-primary); }

/* ===== Hero ===== */
.hero { position: relative; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; padding: clamp(80px, 12vw, 140px) 0 clamp(60px, 8vw, 100px); overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg, rgba(246,245,240,0.96) 0%, rgba(246,245,240,0.88) 45%, rgba(246,245,240,0.55) 100%); z-index: 1; }
.hero::after { content: ''; position: absolute; top: 0; right: 0; width: 45%; height: 100%; background: var(--gradient-brand); opacity: 0.04; z-index: 0; }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-content { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.8); border: 1px solid var(--color-border); padding: 8px 18px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 500; color: var(--color-primary); box-shadow: 0 4px 16px rgba(14,124,102,0.06); margin-bottom: 24px; }
.hero-badge svg { width: 16px; height: 16px; }
.hero h1 { font-size: clamp(36px, 5vw, 56px); line-height: 1.18; letter-spacing: -0.02em; font-weight: 700; color: var(--color-text); margin-bottom: 16px; }
.hero h1 .accent { background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 17px; color: var(--color-text-soft); line-height: 1.75; max-width: 520px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-metrics { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid rgba(227,235,230,0.8); }
.hero-metric-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--color-text-soft); font-weight: 500; }
.hero-metric-item svg { width: 18px; height: 18px; color: var(--color-primary); }
.hero-visual { position: relative; z-index: 2; }
.hero-card { background: rgba(255,255,255,0.90); backdrop-filter: blur(10px); border-radius: var(--radius-card); box-shadow: var(--shadow-card-hover); padding: 20px 20px 0; border: 1px solid rgba(255,255,255,0.8); transform: rotate(1deg); max-width: 460px; margin-left: auto; }
.hero-card img { border-radius: 14px 14px 0 0; width: 100%; height: 320px; object-fit: cover; }
.hero-card-pill { display: inline-flex; align-items: center; gap: 6px; background: var(--gradient-accent); color: #241A05; font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: var(--radius-pill); margin-bottom: 14px; }
.float-chip { position: absolute; background: var(--color-surface); border-radius: var(--radius-inner); box-shadow: var(--shadow-card); padding: 12px 18px; font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; z-index: 3; }
.float-chip.chip-1 { top: -18px; left: -24px; color: var(--color-primary); }
.float-chip.chip-2 { bottom: 60px; right: -16px; color: var(--color-accent); background: #FFF9F0; border: 1px solid #FFE9C8; }

/* ===== Stats ===== */
.stats-section { padding: var(--space-section) 0; background: var(--color-surface); position: relative; }
.stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.stat-card { background: linear-gradient(145deg, #fafdfb, #ffffff); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 32px 22px; text-align: center; transition: transform 0.3s ease, box-shadow 0.3s ease; position: relative; overflow: hidden; }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--gradient-brand); opacity: 0.7; }
.stat-card:nth-child(even)::before { background: var(--gradient-accent); }
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.stat-number { font-size: 44px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; color: var(--color-primary-dark); margin-bottom: 6px; }
.stat-card:nth-child(even) .stat-number { color: #B4750B; }
.stat-label { font-size: 13px; color: var(--color-text-soft); font-weight: 500; }
.stat-trend { display: inline-block; font-size: 11px; font-weight: 600; color: var(--color-primary); background: rgba(14,124,102,0.08); padding: 3px 10px; border-radius: var(--radius-pill); margin-top: 12px; }
.stat-card:nth-child(even) .stat-trend { color: #B4750B; background: rgba(245,165,36,0.10); }

/* ===== Services ===== */
.services-section { padding: var(--space-section) 0; background: var(--color-bg); position: relative; }
.services-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 120px; background: linear-gradient(180deg, var(--color-surface) 0%, transparent 100%); pointer-events: none; }
.services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.service-card { background: var(--color-surface); border-radius: var(--radius-card); padding: 36px; border: 1px solid var(--color-border); box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease; position: relative; overflow: hidden; }
.service-card:nth-child(even) { transform: translateY(24px); }
.service-card:nth-child(even):hover { transform: translateY(18px); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.service-card .service-num { position: absolute; top: 28px; right: 32px; font-size: 68px; font-weight: 800; line-height: 1; color: rgba(14,124,102,0.08); transition: color 0.3s; letter-spacing: -0.04em; }
.service-card:hover .service-num { color: rgba(14,124,102,0.16); }
.service-icon { width: 56px; height: 56px; background: rgba(14,124,102,0.08); border-radius: var(--radius-inner); display: flex; align-items: center; justify-content: center; margin-bottom: 22px; color: var(--color-primary); }
.service-card:nth-child(even) .service-icon { background: rgba(245,165,36,0.10); color: #B4750B; }
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 21px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em; }
.service-card p { font-size: 15px; color: var(--color-text-soft); line-height: 1.7; margin-bottom: 20px; max-width: 380px; }
.service-more { font-size: 14px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 4px; }
.service-more:hover { gap: 8px; }
.service-more svg { width: 14px; height: 14px; }

/* ===== Compare ===== */
.compare-section { padding: var(--space-section) 0; background: var(--color-surface); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; position: relative; margin-top: 48px; }
.compare-card { border-radius: var(--radius-card); padding: 40px 36px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.compare-card.before { background: linear-gradient(145deg, #F9FAFA, #F1F5F2); border: 1px solid #E3EBE6; }
.compare-card.after { background: linear-gradient(145deg, #F0FAF6, #E8F5F0); border: 1px solid #CBE9E0; box-shadow: var(--shadow-card); }
.compare-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.compare-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: var(--radius-pill); margin-bottom: 20px; }
.compare-label.before { background: #EDF0EE; color: #5E726B; }
.compare-label.after { background: rgba(14,124,102,0.12); color: var(--color-primary); }
.compare-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 20px; }
.compare-list { display: flex; flex-direction: column; gap: 14px; }
.compare-item { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; line-height: 1.55; color: var(--color-text); }
.compare-icon { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-top: 2px; }
.compare-icon.bad { background: #EDF0EE; color: #9AA6A0; }
.compare-icon.good { background: var(--color-primary); color: #fff; }
.compare-icon svg { width: 12px; height: 12px; }
.compare-vs { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 56px; height: 56px; background: var(--gradient-accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 800; box-shadow: var(--shadow-accent); z-index: 2; border: 4px solid var(--color-surface); }
.compare-alert { margin-top: 28px; background: linear-gradient(135deg, rgba(14,124,102,0.06), rgba(245,165,36,0.06)); border: 1px dashed var(--color-border); border-radius: var(--radius-inner); padding: 14px 18px; font-size: 14px; color: var(--color-text-soft); display: flex; align-items: center; gap: 10px; }
.compare-alert svg { width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; }

/* ===== News / CMS ===== */
.news-section { padding: var(--space-section) 0; background: var(--color-bg); }
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.news-card { background: var(--color-surface); border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--color-border); box-shadow: var(--shadow-card); transition: transform 0.3s ease, box-shadow 0.3s ease; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.news-card-inner { display: flex; gap: 20px; padding: 24px; flex: 1; align-items: flex-start; }
.news-thumb { width: 160px; height: 108px; border-radius: var(--radius-inner); overflow: hidden; flex-shrink: 0; background: var(--gradient-data); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-body { flex: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.news-cat { font-size: 12px; font-weight: 600; color: var(--color-primary); background: rgba(14,124,102,0.08); padding: 3px 10px; border-radius: var(--radius-pill); }
.news-date { font-size: 12px; color: var(--color-text-soft); font-variant-numeric: tabular-nums; }
.news-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.news-body h3 a { color: var(--color-text); transition: color 0.2s; }
.news-body h3 a:hover { color: var(--color-primary); }
.news-body p { font-size: 14px; color: var(--color-text-soft); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.news-read-more { font-size: 13px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 4px; margin-top: auto; }
.news-read-more:hover { gap: 8px; }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 80px 40px; background: var(--color-surface); border-radius: var(--radius-card); border: 1px dashed var(--color-border); }
.news-empty-icon { width: 64px; height: 64px; border-radius: 50%; background: rgba(14,124,102,0.06); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--color-primary); }
.news-empty-icon svg { width: 28px; height: 28px; }
.news-empty p { font-size: 16px; color: var(--color-text-soft); }

/* ===== FAQ ===== */
.faq-section { padding: var(--space-section) 0; background: var(--color-surface); }
.faq-wrap { max-width: 800px; margin: 48px auto 0; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-inner); overflow: hidden; transition: border-color 0.3s, box-shadow 0.3s; }
.faq-item:hover { border-color: #C5E4DA; box-shadow: 0 4px 20px rgba(14,124,102,0.05); }
.faq-item.open { border-color: var(--color-primary); box-shadow: 0 6px 24px rgba(14,124,102,0.08); }
.faq-q { width: 100%; text-align: left; display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; gap: 16px; cursor: pointer; }
.faq-q-text { font-size: 16px; font-weight: 600; color: var(--color-text); line-height: 1.4; }
.faq-q-icon { width: 28px; height: 28px; border: 1.5px solid var(--color-border); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--color-primary); transition: all 0.3s ease; font-size: 16px; line-height: 1; }
.faq-item.open .faq-q-icon { background: var(--gradient-brand); color: #fff; border-color: transparent; transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-a-inner { padding: 0 24px 20px; font-size: 15px; line-height: 1.75; color: var(--color-text-soft); border-left: 2px solid transparent; margin-left: 24px; padding-left: 16px; }
.faq-item.open .faq-a-inner { border-left-color: var(--color-primary); }

/* ===== CTA / Form ===== */
.cta-section { position: relative; padding: var(--space-section) 0; background: var(--gradient-data); overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; right: -80px; width: 320px; height: 320px; background: rgba(255,255,255,0.04); border-radius: 50%; }
.cta-section::after { content: ''; position: absolute; bottom: -100px; left: -60px; width: 260px; height: 260px; background: rgba(255,255,255,0.03); border-radius: 50%; }
.cta-wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.cta-title { font-size: clamp(28px, 3vw, 38px); font-weight: 700; color: #fff; line-height: 1.25; margin-bottom: 16px; }
.cta-desc { color: rgba(255,255,255,0.8); font-size: 16px; line-height: 1.75; margin-bottom: 28px; }
.cta-features { display: flex; flex-direction: column; gap: 12px; }
.cta-feature { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.9); font-size: 15px; }
.cta-feature svg { width: 20px; height: 20px; color: var(--color-accent-light); flex-shrink: 0; }
.form-card { background: var(--color-surface); border-radius: var(--radius-card); padding: 36px; box-shadow: 0 20px 60px rgba(0,0,0,0.20); }
.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--color-text); }
.form-row input, .form-row select, .form-row textarea { width: 100%; height: 48px; padding: 0 16px; border: 1px solid var(--color-border); border-radius: 12px; font-size: 15px; background: #FAFCFB; transition: border-color 0.2s, box-shadow 0.2s; outline: none; }
.form-row textarea { height: 104px; padding: 14px 16px; resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(14,124,102,0.10); background: #fff; }
.form-submit { width: 100%; height: 50px; background: var(--gradient-accent); color: #241A05; font-size: 16px; font-weight: 700; border-radius: var(--radius-pill); transition: all 0.25s ease; box-shadow: var(--shadow-accent); }
.form-submit:hover { filter: brightness(1.06); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255,197,61,0.4); }
.form-submit:active { transform: translateY(0); }
.form-submit:focus-visible { outline: 3px solid rgba(255,197,61,0.4); outline-offset: 2px; }
.form-note { text-align: center; font-size: 12px; color: var(--color-text-soft); margin-top: 14px; }
.form-success { display: none; text-align: center; padding: 20px 0; }
.form-success.show { display: block; }
.form-success-icon { width: 56px; height: 56px; margin: 0 auto 16px; background: rgba(14,124,102,0.08); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--color-primary); }
.form-success-icon svg { width: 24px; height: 24px; }
.form-success p { font-size: 16px; font-weight: 600; color: var(--color-text); }

/* ===== Footer ===== */
.site-footer { background: #0A1412; color: rgba(255,255,255,0.7); padding-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand .brand-badge { background: var(--gradient-brand); }
.footer-brand .brand span { color: #fff; }
.footer-desc { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,0.6); max-width: 280px; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.footer-links a:hover { color: var(--color-accent-light); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-contact-item svg { width: 18px; height: 18px; color: var(--color-accent-light); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 24px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom p { display: flex; align-items: center; gap: 16px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .hero .container { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { display: none; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-vs { position: absolute; top: 50%; left: 50%; }
  .cta-wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-toggle { display: flex; }
  .mobile-panel { display: none; }
  .mobile-panel.open { display: block; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card:nth-child(even) { transform: none; }
  .service-card:nth-child(even):hover { transform: translateY(-4px); }
  .news-grid { grid-template-columns: 1fr; }
  .news-card-inner { flex-direction: column; }
  .news-thumb { width: 100%; height: 180px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 32px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .cta-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-vs { width: 44px; height: 44px; font-size: 12px; }
  .section-head { margin-bottom: 32px; }
}
@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 32px; }
  .faq-q { padding: 16px 18px; }
  .faq-a-inner { padding-left: 12px; margin-left: 18px; }
  .form-card { padding: 24px; }
  .hero-metrics { gap: 14px; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: rgba(14,124,102,0.30); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(14,124,102,0.50); }

/* roulang page: article */
:root {
  --color-primary: #0E7C66;
  --color-primary-light: #2FA88B;
  --color-primary-dark: #0A5646;
  --color-accent: #F5A524;
  --color-accent-light: #FFC53D;
  --color-bg: #F6F5F0;
  --color-surface: #FFFFFF;
  --color-text: #172620;
  --color-text-soft: #5E726B;
  --color-border: #E3EBE6;
  --gradient-brand: linear-gradient(135deg, #0E7C66 0%, #2FA88B 55%, #7FCFB5 100%);
  --gradient-accent: linear-gradient(135deg, #F5A524 0%, #FFC53D 100%);
  --gradient-data: linear-gradient(135deg, #0A5646 0%, #0E7C66 100%);
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(14, 124, 102, 0.10);
  --shadow-card-hover: 0 18px 44px rgba(14, 124, 102, 0.18);
  --shadow-accent: 0 8px 24px rgba(245, 165, 36, 0.30);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

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

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  box-shadow: var(--shadow-card);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(14, 124, 102, 0.06);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
  background: rgba(14, 124, 102, 0.08);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 4px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

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

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

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

/* ============ 文章页横幅 ============ */
.article-banner {
  background: linear-gradient(135deg, rgba(10, 86, 70, 0.88), rgba(14, 124, 102, 0.72)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 76px 0 68px;
  color: #fff;
  position: relative;
}

.article-banner .container {
  position: relative;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
}

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

.breadcrumb-sep {
  opacity: 0.5;
}

.breadcrumb-current {
  color: rgba(255, 255, 255, 0.92);
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ 文章主体 ============ */
.article-main {
  padding: 64px 0 0;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 48px;
  align-items: start;
}

.article-content-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px 52px;
  border: 1px solid rgba(227, 235, 230, 0.6);
}

.article-category-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(14, 124, 102, 0.08);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}

.article-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary-dark);
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-soft);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.article-body {
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--color-text);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--color-primary);
}

.article-body h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin: 28px 0 12px;
}

.article-body h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 20px 0 10px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px;
  padding-left: 22px;
}

.article-body ul li {
  list-style: disc;
  margin-bottom: 6px;
}

.article-body ol li {
  list-style: decimal;
  margin-bottom: 6px;
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(14, 124, 102, 0.05);
  padding: 16px 20px;
  border-radius: 0 var(--radius-inner) var(--radius-inner) 0;
  margin: 24px 0;
  color: var(--color-text-soft);
}

.article-body img {
  border-radius: var(--radius-inner);
  margin: 24px 0;
  box-shadow: var(--shadow-card);
}

.article-body a {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 2px solid rgba(14, 124, 102, 0.2);
}

.article-body a:hover {
  border-bottom-color: var(--color-primary);
}

.article-empty {
  text-align: center;
  padding: 80px 32px;
}

.article-empty-icon {
  font-size: 56px;
  margin-bottom: 16px;
}

.article-empty h2 {
  font-size: 24px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.article-empty p {
  color: var(--color-text-soft);
  margin-bottom: 24px;
}

/* ============ 侧栏 ============ */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid rgba(227, 235, 230, 0.6);
  box-shadow: var(--shadow-card);
}

.sidebar-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 12px;
}

.sidebar-card-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 3px;
  border-radius: 4px;
  background: var(--gradient-accent);
}

.sidebar-link-list li {
  margin-bottom: 4px;
}

.sidebar-link-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.sidebar-link-list a:hover {
  background: rgba(14, 124, 102, 0.06);
  color: var(--color-primary);
}

.sidebar-link-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.sidebar-contact p {
  font-size: 14px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}

.sidebar-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px 20px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sidebar-contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.sidebar-contact-btn:active {
  transform: translateY(0);
}

/* ============ 相关推荐 ============ */
.related-section {
  padding: 72px 0 64px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.3;
}

.section-subtitle {
  color: var(--color-text-soft);
  font-size: 15px;
  margin-top: 6px;
}

.section-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.section-more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.section-more:hover svg {
  transform: translateX(4px);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(227, 235, 230, 0.6);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

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

.related-cover {
  height: 160px;
  overflow: hidden;
  position: relative;
}

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

.related-card:hover .related-cover img {
  transform: scale(1.05);
}

.related-body {
  padding: 22px 24px 24px;
}

.related-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  background: rgba(14, 124, 102, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}

.related-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover .related-title {
  color: var(--color-primary);
}

.related-date {
  font-size: 13px;
  color: var(--color-text-soft);
}

/* ============ CTA 区域 ============ */
.article-cta {
  background: var(--gradient-data);
  border-radius: var(--radius-card);
  padding: 56px 60px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(245, 165, 36, 0.18);
}

.article-cta::after {
  content: "";
  position: absolute;
  bottom: -90px;
  left: 20%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.article-cta .container {
  position: relative;
  z-index: 1;
  max-width: 100%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-desc {
  font-size: 15px;
  opacity: 0.88;
  max-width: 560px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

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

.btn-accent:hover {
  background: linear-gradient(135deg, #FFA611 0%, #FFD24D 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(245, 165, 36, 0.4);
  color: #fff;
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateY(-2px);
}

/* ============ 页脚 ============ */
.site-footer {
  background: #0A1412;
  color: rgba(255, 255, 255, 0.82);
  padding: 64px 0 0;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-brand .brand-badge {
  background: var(--gradient-accent);
  color: #172620;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-accent-light);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-cta .container {
    flex-direction: column;
    text-align: center;
  }

  .article-cta {
    padding: 48px 40px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 68px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    gap: 4px;
  }

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

  .nav-link {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 12px;
  }

  .nav-link.active {
    background: rgba(14, 124, 102, 0.08);
  }

  .article-banner {
    padding: 52px 0 46px;
  }

  .article-content-card {
    padding: 32px 24px;
  }

  .article-title {
    font-size: 26px;
  }

  .article-body {
    font-size: 15.5px;
  }

  .article-sidebar {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .article-cta {
    padding: 40px 24px;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .brand {
    font-size: 17px;
  }

  .brand-badge {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .article-meta {
    gap: 10px;
    flex-direction: column;
    align-items: flex-start;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .section-title {
    font-size: 24px;
  }
}

/* roulang page: category1 */
:root {
  --color-primary: #0E7C66;
  --color-primary-light: #2FA88B;
  --color-primary-dark: #0A5646;
  --color-accent: #F5A524;
  --color-accent-light: #FFC53D;
  --color-bg: #F6F5F0;
  --color-surface: #FFFFFF;
  --color-text: #172620;
  --color-text-soft: #5E726B;
  --color-border: #E3EBE6;
  --gradient-brand: linear-gradient(135deg, #0E7C66 0%, #2FA88B 55%, #7FCFB5 100%);
  --gradient-accent: linear-gradient(135deg, #F5A524 0%, #FFC53D 100%);
  --gradient-data: linear-gradient(135deg, #0A5646 0%, #0E7C66 100%);
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(14, 124, 102, 0.10);
  --shadow-card-hover: 0 18px 44px rgba(14, 124, 102, 0.18);
  --shadow-accent: 0 8px 24px rgba(245, 165, 36, 0.30);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}
a:hover, a:focus {
  color: var(--color-primary);
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
  font-size: 15px;
  border: none;
  outline: none;
}
.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}
@media (max-width: 640px) {
  .container {
    width: min(1200px, 100% - 32px);
  }
}
.section {
  padding: clamp(72px, 10vw, 112px) 0;
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--color-primary);
  background: rgba(14, 124, 102, .08);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: .01em;
}
.section-head p {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.7;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--color-text);
}
.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  box-shadow: var(--shadow-card);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  transition: color .25s ease, background .25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s ease;
}
.nav-link:hover {
  color: var(--color-primary);
}
.nav-link:hover::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* Hero */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(10, 86, 70, .92) 0%, rgba(14, 124, 102, .88) 60%, rgba(47, 168, 139, .78) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: clamp(68px, 8vw, 96px) 0 72px;
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: rgba(127, 207, 181, .15);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -160px;
  left: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(245, 165, 36, .10);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, .85);
  transition: color .25s ease;
}
.breadcrumb a:hover {
  color: var(--color-accent-light);
}
.breadcrumb .sep {
  opacity: .5;
}
.page-hero .breadcrumb-current {
  color: var(--color-accent-light);
  font-weight: 500;
}
.page-hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .01em;
  margin-bottom: 20px;
}
.page-hero h1 .grad-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .92);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(14, 124, 102, .35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(14, 124, 102, .45);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 6px 16px rgba(14, 124, 102, .3);
}
.btn-outline-light {
  border: 1px solid rgba(255, 255, 255, .6);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  border-color: var(--color-accent-light);
  color: var(--color-accent-light);
  transform: translateY(-2px);
}
.btn-outline-light:active {
  transform: translateY(0);
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.hero-metrics .hm-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
}
.hero-metrics .hm-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-light);
  flex-shrink: 0;
}
/* Login Methods */
.methods-section {
  background: var(--color-bg);
}
.methods-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.method-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(227, 235, 230, .6);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  overflow: hidden;
}
.method-card:nth-child(even) {
  transform: translateY(24px);
}
.method-card:nth-child(even):hover {
  transform: translateY(18px);
}
.method-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(14, 124, 102, .2);
}
.method-num {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: rgba(14, 124, 102, .12);
  line-height: 1;
  margin-bottom: 16px;
  transition: color .3s ease;
}
.method-card:hover .method-num {
  color: var(--color-primary);
}
.method-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(14, 124, 102, .08);
  color: var(--color-primary);
  margin-bottom: 18px;
}
.method-icon svg {
  width: 24px;
  height: 24px;
}
.method-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.method-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
}
.method-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}
.method-link svg {
  width: 16px;
  height: 16px;
  transition: transform .25s ease;
}
.method-link:hover svg {
  transform: translateX(4px);
}
/* Steps Timeline */
.steps-section {
  background: linear-gradient(180deg, #EEF3EF 0%, var(--color-bg) 100%);
}
.steps-timeline {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding: 20px 0;
}
.steps-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 36px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, rgba(14, 124, 102, .15) 100%);
}
.step-item {
  position: relative;
  display: flex;
  gap: 28px;
  padding: 0 0 44px 76px;
}
.step-item:last-child {
  padding-bottom: 8px;
}
.step-dot {
  position: absolute;
  left: 24px;
  top: 4px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-brand);
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px var(--color-primary-light), 0 4px 12px rgba(14, 124, 102, .3);
  z-index: 2;
}
.step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: .08em;
  margin-bottom: 4px;
}
.step-content {
  flex: 1;
  background: var(--color-surface);
  border-radius: var(--radius-inner);
  padding: 24px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(227, 235, 230, .5);
  transition: box-shadow .3s ease, transform .3s ease;
}
.step-content:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
}
/* Security Section */
.security-section {
  background: var(--color-surface);
}
.security-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.security-visual img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card-hover);
  object-fit: cover;
  aspect-ratio: 4/3;
}
.security-content h2 {
  font-size: clamp(26px, 2.6vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}
.security-content > p {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 28px;
}
.security-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.security-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 18px 16px;
  background: var(--color-bg);
  border-radius: var(--radius-inner);
  border: 1px solid rgba(227, 235, 230, .6);
  transition: border-color .3s ease, box-shadow .3s ease;
}
.security-item:hover {
  border-color: rgba(14, 124, 102, .3);
  box-shadow: var(--shadow-card);
}
.security-item svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.security-item h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}
.security-item p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-soft);
}
/* News Cards */
.news-section {
  background: var(--color-bg);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(227, 235, 230, .5);
  transition: transform .3s ease, box-shadow .3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.news-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.05);
}
.news-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: rgba(14, 124, 102, .92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(6px);
}
.news-info {
  padding: 22px 22px 24px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-soft);
  margin-bottom: 8px;
}
.news-info h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
}
.news-info p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-text-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}
.news-link svg {
  width: 16px;
  height: 16px;
  transition: transform .25s ease;
}
.news-link:hover svg {
  transform: translateX(4px);
}
/* FAQ */
.faq-section {
  background: var(--color-surface);
}
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 22px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  transition: color .3s ease;
}
.faq-question:hover {
  color: var(--color-primary);
}
.faq-question .faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}
.faq-item.open .faq-question {
  color: var(--color-primary);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 4px 22px;
}
.faq-answer-inner {
  padding-left: 14px;
  border-left: 2px solid var(--color-primary);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-soft);
}
/* CTA */
.cta-section {
  position: relative;
  background: var(--gradient-data);
  padding: clamp(64px, 8vw, 88px) 0;
  color: #fff;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(127, 207, 181, .15);
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -40px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(245, 165, 36, .12);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.btn-accent {
  background: var(--gradient-accent);
  color: #172620;
  font-weight: 700;
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover {
  background: linear-gradient(135deg, #FFB937 0%, #FFD24D 100%);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(245, 165, 36, .45);
  color: #172620;
}
.btn-accent:active {
  transform: translateY(0);
}
.btn-outline-white {
  border: 1px solid rgba(255, 255, 255, .7);
  color: #fff;
  background: transparent;
}
.btn-outline-white:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline-white:active {
  transform: translateY(0);
}
/* Footer */
.site-footer {
  background: #0A1412;
  color: rgba(255, 255, 255, .78);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  color: #fff;
  font-size: 20px;
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .6);
  max-width: 300px;
  margin-top: 14px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .04em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
  transition: color .25s ease, padding-left .25s ease;
}
.footer-links a:hover {
  color: var(--color-accent-light);
  padding-left: 6px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}
.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary-light);
  flex-shrink: 0;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
}
/* Responsive */
@media (max-width: 1024px) {
  .methods-grid {
    grid-template-columns: 1fr;
  }
  .methods-grid .method-card:nth-child(even) {
    transform: none;
  }
  .methods-grid .method-card:nth-child(even):hover {
    transform: translateY(-4px);
  }
  .security-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .news-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .nav-list {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, .08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform .35s ease, opacity .3s ease, visibility .3s;
  }
  .nav-list.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-list .nav-link {
    padding: 16px 8px;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }
  .nav-list .nav-link::after {
    display: none;
  }
  .nav-list .nav-link.active {
    background: rgba(14, 124, 102, .06);
  }
  .nav-toggle {
    display: flex;
  }
  .page-hero {
    padding: 56px 0 56px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .security-list {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .steps-timeline {
    padding-left: 0;
  }
  .steps-timeline::before {
    left: 14px;
  }
  .step-item {
    padding-left: 50px;
    gap: 16px;
  }
  .step-dot {
    left: 2px;
    width: 24px;
    height: 24px;
  }
  .step-content {
    padding: 20px;
  }
}
@media (max-width: 480px) {
  .section-head p {
    font-size: 14px;
  }
  .method-card {
    padding: 24px 20px;
  }
  .method-num {
    font-size: 32px;
  }
  .step-content h3 {
    font-size: 16px;
  }
  .hero-metrics {
    gap: 14px;
  }
  .btn {
    padding: 12px 22px;
  }
}

/* roulang page: category2 */
:root {
  --color-primary: #0E7C66;
  --color-primary-light: #2FA88B;
  --color-primary-dark: #0A5646;
  --color-accent: #F5A524;
  --color-accent-light: #FFC53D;
  --color-bg: #F6F5F0;
  --color-surface: #FFFFFF;
  --color-text: #172620;
  --color-text-soft: #5E726B;
  --color-border: #E3EBE6;
  --gradient-brand: linear-gradient(135deg, #0E7C66 0%, #2FA88B 55%, #7FCFB5 100%);
  --gradient-accent: linear-gradient(135deg, #F5A524 0%, #FFC53D 100%);
  --gradient-data: linear-gradient(135deg, #0A5646 0%, #0E7C66 100%);
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(14, 124, 102, 0.10);
  --shadow-card-hover: 0 18px 44px rgba(14, 124, 102, 0.18);
  --shadow-accent: 0 8px 24px rgba(245, 165, 36, 0.30);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(14, 124, 102, 0.28);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  position: relative;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  transition: color 0.25s ease, background-color 0.25s ease;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(14, 124, 102, 0.06);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.nav-cta {
  margin-left: 10px;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(14, 124, 102, 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(14, 124, 102, 0.35);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 4px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* 面包屑 */
.breadcrumb-wrap {
  padding: 24px 0 8px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-soft);
}

.breadcrumb a {
  transition: color 0.2s ease;
}

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

.breadcrumb .sep {
  color: #B6C4BC;
  margin: 0 2px;
}

/* 头部 banner */
.page-hero {
  position: relative;
  padding: 72px 0 72px;
  background: var(--gradient-data);
  border-radius: 0 0 36px 36px;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(245, 165, 36, 0.16);
  filter: blur(60px);
}

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

.page-hero .breadcrumb {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 18px;
}

.page-hero .breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.page-hero .breadcrumb a:hover { color: #fff; }
.page-hero .breadcrumb .sep { color: rgba(255, 255, 255, 0.4); }

.page-hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  max-width: 780px;
  letter-spacing: 0.01em;
  margin-bottom: 16px;
}

.page-hero h1 .highlight {
  background: linear-gradient(120deg, #FFC53D, #F5A524);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.page-hero p.lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin-bottom: 28px;
}

.page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-hero-meta .meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(6px);
}

.page-hero-meta .meta-chip svg {
  width: 16px;
  height: 16px;
  stroke: #FFC53D;
}

/* 板块通用 */
.section {
  padding: clamp(64px, 8vw, 96px) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}

.section-head .left h2 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.section-head .left h2 .accent-text {
  color: var(--color-primary);
}

.section-head .left p {
  margin-top: 10px;
  font-size: 15px;
  color: var(--color-text-soft);
  max-width: 520px;
}

.section-head .right-link {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: gap 0.2s ease;
}

.section-head .right-link:hover { gap: 8px; }

.section-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(14, 124, 102, 0.08);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
}

/* 对比区 */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
}

.compare-card {
  padding: 36px 32px;
  border-radius: var(--radius-card);
  min-height: 380px;
  display: flex;
  flex-direction: column;
}

.compare-card.before {
  background: #F0EEEA;
  border: 1px solid #E5E2DA;
}

.compare-card.after {
  background: linear-gradient(135deg, rgba(14, 124, 102, 0.08), rgba(47, 168, 139, 0.04));
  border: 1px solid rgba(14, 124, 102, 0.18);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.compare-card.after::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(245, 165, 36, 0.14);
  filter: blur(40px);
}

.compare-card h3 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.compare-card.before h3 { color: var(--color-text); }
.compare-card.after h3 { color: var(--color-primary-dark); }

.compare-card ul { display: flex; flex-direction: column; gap: 16px; flex: 1; }

.compare-card li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-soft);
}

.compare-card li .icon-box {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  margin-top: 2px;
}

.compare-card.before li .icon-box {
  background: rgba(180, 60, 60, 0.12);
  color: #B8433A;
}

.compare-card.after li .icon-box {
  background: rgba(14, 124, 102, 0.14);
  color: var(--color-primary);
}

.compare-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  align-self: center;
}

.compare-vs span {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-accent);
  letter-spacing: 0.02em;
}

.compare-card.after .data-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-accent);
}

/* 资讯卡片 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.news-card .cover {
  height: 190px;
  overflow: hidden;
  position: relative;
}

.news-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.news-card .cover .cov-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(14, 124, 102, 0.88);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

.news-card .body {
  padding: 22px 22px 24px;
}

.news-card .meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 12px;
}

.news-card .meta-row .date {
  display: flex;
  align-items: center;
  gap: 5px;
}

.news-card .meta-row .date svg { width: 14px; height: 14px; }

.news-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.news-card:hover h3 { color: var(--color-primary); }

.news-card p.excerpt {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-card .more-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}

.news-card .more-link:hover { gap: 8px; }

/* 图文交错 */
.alternate-section {
  background: var(--color-surface);
  border-radius: 36px;
  padding: clamp(40px, 6vw, 72px);
  box-shadow: var(--shadow-card);
}

.alternate-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.alternate-grid.reverse .image-wrap { order: 2; }
.alternate-grid.reverse .text-wrap { order: 1; }

.image-wrap {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(10, 86, 70, 0.16);
  position: relative;
}

.image-wrap img { width: 100%; height: auto; min-height: 260px; object-fit: cover; }

.image-wrap .img-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-dark);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}

.text-wrap h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 14px;
  color: var(--color-text);
}

.text-wrap p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-soft);
  margin-bottom: 18px;
}

.text-wrap .text-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: flex-start;
}

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

.text-wrap .text-item .badge-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(14, 124, 102, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-wrap .text-item .badge-icon svg { width: 18px; height: 18px; stroke: var(--color-primary); }

.text-wrap .text-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 3px;
}

.text-wrap .text-item p {
  font-size: 14px;
  margin-bottom: 0;
  line-height: 1.6;
}

/* 特色卡片 */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.feature-card:nth-child(even) {
  transform: translateY(18px);
}

.feature-card:nth-child(even):hover {
  transform: translateY(14px);
  box-shadow: var(--shadow-card-hover);
}

.feature-card .num {
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: rgba(14, 124, 102, 0.14);
  position: absolute;
  right: 24px;
  top: 20px;
  font-variant-numeric: tabular-nums;
}

.feature-card .feat-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 8px 20px rgba(14, 124, 102, 0.25);
}

.feature-card .feat-icon svg { width: 24px; height: 24px; stroke: #fff; }

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.feature-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

/* FAQ */
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-inner);
  border: 1px solid var(--color-border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(14, 124, 102, 0.3);
  box-shadow: 0 6px 20px rgba(14, 124, 102, 0.07);
}

.faq-item[open] {
  border-color: rgba(14, 124, 102, 0.4);
  box-shadow: 0 8px 24px rgba(14, 124, 102, 0.1);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  list-style: none;
  transition: color 0.2s ease;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary:hover { color: var(--color-primary); }

.faq-item summary .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(14, 124, 102, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-primary);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  border-left: 3px solid var(--color-primary);
  margin-left: 24px;
  margin-bottom: 20px;
  padding-left: 20px;
}

.faq-item .faq-answer p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-soft);
}

/* CTA */
.cta-section {
  padding: clamp(60px, 7vw, 84px) 0;
}

.cta-card {
  background: var(--gradient-data);
  border-radius: 36px;
  padding: clamp(40px, 6vw, 68px);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 10%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(245, 165, 36, 0.14);
  filter: blur(60px);
}

.cta-card::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: 5%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(47, 168, 139, 0.22);
  filter: blur(50px);
}

.cta-card h2 {
  position: relative;
  z-index: 2;
  color: #fff;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.4;
}

.cta-card p {
  position: relative;
  z-index: 2;
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto 30px;
}

.cta-btns {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

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

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

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 165, 36, 0.42);
}

.btn-accent:active { transform: translateY(0); }

.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
}

.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* 页脚 */
.site-footer {
  background: #0A1412;
  color: rgba(255, 255, 255, 0.78);
  padding: 64px 0 0;
  margin-top: 40px;
}

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

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

.footer-brand .brand .brand-badge {
  background: var(--gradient-accent);
  box-shadow: 0 6px 18px rgba(245, 165, 36, 0.3);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  max-width: 300px;
}

.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent-light);
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .alternate-grid.reverse .image-wrap { order: 1; }
  .alternate-grid.reverse .text-wrap { order: 2; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 20px 40px rgba(10, 86, 70, 0.12);
  }

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

  .nav-list .nav-link {
    width: 100%;
    font-size: 17px;
    padding: 14px 12px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

  .nav-list .nav-link.active::after {
    display: none;
  }

  .nav-list .nav-cta {
    margin-left: 0;
    margin-top: 16px;
    width: 100%;
    text-align: center;
  }

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

  .compare-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .compare-vs {
    padding: 8px 0;
  }

  .compare-vs span {
    width: 44px;
    height: 44px;
  }

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

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

  .feature-card:nth-child(even) {
    transform: none;
  }

  .feature-card:nth-child(even):hover {
    transform: translateY(-4px);
  }

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

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .alternate-section {
    border-radius: 24px;
    padding: 32px 24px;
  }

  .cta-btns .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .page-hero h1 {
    font-size: 28px;
  }

  .page-hero-meta {
    flex-direction: column;
  }

  .compare-card {
    padding: 26px 20px;
  }

  .news-card .cover {
    height: 170px;
  }

  .site-header .nav-cta {
    display: none;
  }
}

/* roulang page: category3 */
:root {
  --color-primary: #0E7C66;
  --color-primary-light: #2FA88B;
  --color-primary-dark: #0A5646;
  --color-accent: #F5A524;
  --color-accent-light: #FFC53D;
  --color-bg: #F6F5F0;
  --color-surface: #FFFFFF;
  --color-text: #172620;
  --color-text-soft: #5E726B;
  --color-border: #E3EBE6;
  --gradient-brand: linear-gradient(135deg, #0E7C66 0%, #2FA88B 55%, #7FCFB5 100%);
  --gradient-accent: linear-gradient(135deg, #F5A524 0%, #FFC53D 100%);
  --gradient-data: linear-gradient(135deg, #0A5646 0%, #0E7C66 100%);
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 10px 30px rgba(14, 124, 102, 0.10);
  --shadow-card-hover: 0 18px 44px rgba(14, 124, 102, 0.18);
  --shadow-accent: 0 8px 24px rgba(245, 165, 36, 0.30);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --container-width: 1200px;
  --section-gap: clamp(72px, 10vw, 112px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: 4px; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(14,124,102,0.25);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-soft);
  padding: 8px 2px;
  letter-spacing: 0.02em;
  transition: color .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-brand);
  transition: width .3s ease;
}
.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.nav-link.active::after {
  width: 100%;
  background: var(--gradient-brand);
}
.nav-link.active::before {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14,124,102,0.15);
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: all .3s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .nav-list {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px 24px;
    box-shadow: 0 20px 40px rgba(23,38,32,0.08);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform .35s ease, opacity .3s ease;
  }
  .nav-list.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list a {
    display: block;
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 17px;
    text-align: center;
  }
  .nav-list a:last-child { border-bottom: none; }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-soft); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { color: var(--color-border); font-weight: 300; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all .3s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 6px 20px rgba(14,124,102,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(14,124,102,0.32);
}
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-outline:hover {
  background: rgba(245,165,36,0.08);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
}
.btn-outline:active { transform: translateY(0) scale(0.98); }
.btn-accent {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(245,165,36,0.4);
}
.btn-accent:active { transform: translateY(0) scale(0.98); }

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 6vw, 72px);
  background: linear-gradient(180deg, #EDF4F0 0%, var(--color-bg) 100%);
  overflow: hidden;
}
.category-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: var(--gradient-brand);
  opacity: 0.06;
  border-radius: 0 0 0 60%;
  pointer-events: none;
}
.category-hero .container { position: relative; z-index: 2; }
.category-hero-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.category-hero-text .hero-tag {
  display: inline-block;
  background: rgba(14,124,102,0.1);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.category-hero-text h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}
.category-hero-text h1 strong {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.category-hero-text p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-soft);
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-soft);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta span::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}
.category-hero-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transform: rotate(1.5deg);
  transition: transform .4s ease, box-shadow .4s ease;
}
.category-hero-image:hover {
  transform: rotate(0) scale(1.01);
  box-shadow: var(--shadow-card-hover);
}
.category-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}

@media (max-width: 768px) {
  .category-hero-content { grid-template-columns: 1fr; gap: 32px; }
  .category-hero-image { transform: none; }
  .category-hero-image img { min-height: 220px; }
}

/* ===== Section Common ===== */
.section { padding: var(--section-gap) 0; }
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-head .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(14,124,102,0.08);
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

/* ===== Services Grid ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.service-card:nth-child(even) { transform: translateY(24px); }
.service-card:nth-child(even):hover { transform: translateY(20px) scale(1.01); }
.service-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(14,124,102,0.2);
}
.service-card .card-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 56px;
  font-weight: 800;
  color: rgba(14,124,102,0.08);
  line-height: 1;
  transition: color .35s ease;
}
.service-card:hover .card-num { color: rgba(14,124,102,0.18); }
.service-card .card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient-brand);
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(14,124,102,0.2);
}
.service-card .card-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--color-text); }
.service-card p { font-size: 14px; line-height: 1.7; color: var(--color-text-soft); margin-bottom: 18px; }
.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}
.service-card .card-link svg { width: 16px; height: 16px; transition: transform .3s ease; }
.service-card .card-link:hover svg { transform: translateX(4px); }

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card:nth-child(even) { transform: none; }
  .service-card:nth-child(even):hover { transform: none; }
}

/* ===== Timeline ===== */
.timeline-wrapper {
  background: var(--gradient-data);
  border-radius: var(--radius-card);
  padding: clamp(40px, 6vw, 64px);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.timeline-wrapper::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.timeline-wrapper::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(245,165,36,0.08);
}
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}
.timeline-item { position: relative; padding-top: 48px; }
.timeline-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: rgba(255,255,255,0.15);
}
.timeline-item::after {
  content: '';
  position: absolute;
  top: -5px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: 0 0 0 4px rgba(245,165,36,0.25);
}
.timeline-item .step-num {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  display: block;
}
.timeline-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.timeline-item p { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,0.78); }

@media (max-width: 1024px) {
  .timeline-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}
@media (max-width: 520px) {
  .timeline-grid { grid-template-columns: 1fr; gap: 24px; }
  .timeline-wrapper { padding: 32px 24px; }
}

/* ===== Metrics ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.metric-card {
  background: var(--color-surface);
  border-radius: var(--radius-inner);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease;
}
.metric-card:nth-child(even) {
  background: linear-gradient(160deg, rgba(245,165,36,0.06) 0%, var(--color-surface) 60%);
}
.metric-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}
.metric-card .metric-num {
  font-size: clamp(28px, 2.6vw, 40px);
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 6px;
}
.metric-card:nth-child(even) .metric-num { color: var(--color-accent); }
.metric-card .metric-label {
  font-size: 13px;
  color: var(--color-text-soft);
  font-weight: 500;
}
.metric-card .metric-trend {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(14,124,102,0.08);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}
.metric-card:nth-child(even) .metric-trend {
  color: var(--color-accent);
  background: rgba(245,165,36,0.1);
}

@media (max-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-inner);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-card); }
.faq-item.open { border-color: rgba(14,124,102,0.25); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: color .25s ease;
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-text-soft);
  font-size: 16px;
  flex-shrink: 0;
  transition: transform .35s ease, background .3s ease, color .3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px 24px;
  border-left: 3px solid var(--color-primary);
  margin-left: 24px;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

/* ===== CTA / Form Section ===== */
.cta-section {
  background: var(--gradient-data);
  border-radius: var(--radius-card);
  padding: clamp(48px, 6vw, 72px);
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 10%;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(245,165,36,0.1);
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  position: relative;
  z-index: 2;
}
.cta-info h2 {
  font-size: clamp(26px, 2.8vw, 34px);
  font-weight: 700;
  margin-bottom: 14px;
  color: #fff;
}
.cta-info p {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
}
.cta-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cta-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
}
.cta-points li svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}
.cta-form {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-inner);
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.12);
}
.cta-form h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}
.cta-form .form-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 24px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.95);
  font-size: 14px;
  color: var(--color-text);
  transition: border-color .3s ease, box-shadow .3s ease;
  outline: none;
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245,165,36,0.25);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #9DBBB2; }
.cta-form .btn-accent { width: 100%; margin-top: 8px; }
.form-privacy {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  text-align: center;
  margin-top: 14px;
}

@media (max-width: 1024px) {
  .cta-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== Footer ===== */
.site-footer {
  background: #0A1412;
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand .brand .brand-badge {
  background: var(--gradient-accent);
  box-shadow: 0 4px 14px rgba(245,165,36,0.3);
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
  max-width: 340px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color .25s ease;
}
.footer-links a:hover { color: var(--color-accent); }
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 8px;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .nav-list { gap: 20px; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .hero-actions .btn { width: 100%; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand { font-size: 17px; }
  .brand-badge { width: 32px; height: 32px; font-size: 15px; }
  .service-card { padding: 28px 24px; }
  .timeline-wrapper { padding: 28px 20px; }
  .cta-section { padding: 32px 20px; }
  .cta-form { padding: 24px 20px; }
}