/* roulang page: index */
:root {
  --primary: #00A870;
  --primary-dark: #006B47;
  --ink: #1A1D21;
  --gold: #C79A5B;
  --bg: #F6F4EF;
  --white: #FFFFFF;
  --text: #22262A;
  --text-secondary: #5A6368;
  --weak: #8E969B;
  --border: #ECEBE6;
  --shadow: 0 1px 4px rgba(20, 30, 25, 0.06);
  --shadow-hover: 0 16px 40px rgba(15, 40, 30, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1280px;
  --font: "PingFang SC", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Arial Narrow", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-header .section-tag { display: inline-block; font-size: 14px; font-weight: 600; letter-spacing: .06em; color: var(--primary); background: rgba(0,168,112,.08); padding: 6px 18px; border-radius: 30px; margin-bottom: 16px; }
.section-header h2 { font-size: clamp(30px, 4vw, 40px); font-weight: 700; line-height: 1.25; letter-spacing: .01em; color: var(--text); margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-secondary); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 16px; font-weight: 600; padding: 14px 32px; border-radius: 50px; transition: all .3s ease; line-height: 1.2; border: 2px solid transparent; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(0,168,112,.30); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,168,112,.38); }
.btn-primary:focus-visible { outline: 3px solid rgba(0,168,112,.4); outline-offset: 2px; }
.btn-outline { border-color: rgba(255,255,255,.7); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #2a2f35; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.btn-sm { padding: 10px 22px; font-size: 14px; }

/* 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(--border); transition: box-shadow .3s ease; }
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: .02em; color: var(--text); display: flex; align-items: center; gap: 10px; }
.logo i { color: var(--primary); font-size: 26px; }
.logo:hover { color: var(--primary); }
.logo span { background: linear-gradient(135deg, var(--primary) 30%, var(--primary-dark) 70%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav .nav-link { font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 10px 16px; border-radius: 30px; transition: all .25s ease; position: relative; }
.main-nav .nav-link:hover { color: var(--primary); background: rgba(0,168,112,.06); }
.main-nav .nav-link.active { color: var(--primary); font-weight: 600; background: rgba(0,168,112,.1); }
.main-nav .nav-link.active::after { content: ""; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.nav-cta { padding: 10px 24px; font-size: 14px; }
.nav-toggle { display: none; font-size: 24px; color: var(--text); width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--border); align-items: center; justify-content: center; transition: all .2s; }
.nav-toggle:hover { background: var(--bg); }

/* Hero */
.hero { position: relative; display: flex; align-items: center; justify-content: center; min-height: 620px; padding: 120px 0 100px; background-size: cover; background-position: center; color: #fff; overflow: hidden; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,29,33,.82) 0%, rgba(26,29,33,.55) 60%, rgba(0,168,112,.25) 100%); }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 900px; padding: 0 24px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); color: #fff; font-size: 14px; font-weight: 500; padding: 8px 22px; border-radius: 40px; margin-bottom: 24px; letter-spacing: .06em; backdrop-filter: blur(8px); }
.hero-badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px rgba(199,154,91,.25); }
.hero h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 800; line-height: 1.15; letter-spacing: .01em; margin-bottom: 24px; text-shadow: 0 4px 30px rgba(0,0,0,.3); }
.hero h1 .highlight { color: var(--gold); }
.hero-subtitle { font-size: clamp(16px, 2vw, 22px); line-height: 1.7; color: rgba(255,255,255,.9); max-width: 640px; margin: 0 auto 40px; font-weight: 400; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats { position: relative; z-index: 2; margin-top: 64px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.hero-stat { padding: 28px 16px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); backdrop-filter: blur(12px); transition: transform .3s, background .3s; }
.hero-stat:hover { transform: translateY(-4px); background: rgba(255,255,255,.14); }
.hero-stat .num { font-family: var(--font-num); font-size: 42px; font-weight: 700; color: #fff; display: block; line-height: 1.1; letter-spacing: .04em; }
.hero-stat .num i { font-style: normal; color: var(--gold); font-size: 26px; }
.hero-stat .label { font-size: 14px; color: rgba(255,255,255,.75); margin-top: 8px; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card { background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all .35s ease; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.feature-card .feature-img { height: 220px; background-size: cover; background-position: center; position: relative; }
.feature-card .feature-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(26,29,33,.4)); }
.feature-card .feature-body { padding: 32px 28px 36px; }
.feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 14px; background: rgba(0,168,112,.1); color: var(--primary); font-size: 22px; margin-bottom: 18px; }
.feature-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.feature-card .feature-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; transition: gap .3s; }
.feature-card .feature-link:hover { gap: 12px; color: var(--primary-dark); }
.feature-card .feature-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* Latest */
.latest-section { background: var(--bg); }
.latest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow); transition: all .35s ease; display: flex; flex-direction: column; }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.news-card .news-cover { height: 170px; background-size: cover; background-position: center; position: relative; }
.news-card .news-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-tag { display: inline-block; align-self: flex-start; font-size: 12px; font-weight: 600; color: var(--primary); background: rgba(0,168,112,.08); padding: 4px 14px; border-radius: 20px; margin-bottom: 12px; letter-spacing: .04em; }
.news-card h3 { font-size: 18px; font-weight: 600; line-height: 1.45; margin-bottom: 10px; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.news-card time { font-size: 13px; color: var(--weak); display: flex; align-items: center; gap: 6px; }
.news-card .empty-tip { color: var(--text-secondary); padding: 40px; text-align: center; }

/* Advantage */
.advantage-section { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.advantage-section::before { content: ""; position: absolute; top: 0; right: 0; width: 500px; height: 500px; background: radial-gradient(circle, rgba(0,168,112,.15), transparent 70%); }
.adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.adv-copy h2 { font-size: clamp(30px, 4vw, 40px); line-height: 1.25; margin-bottom: 20px; font-weight: 700; }
.adv-copy p { color: rgba(255,255,255,.75); font-size: 16px; margin-bottom: 32px; }
.adv-list { display: grid; gap: 20px; }
.adv-item { display: flex; gap: 16px; padding: 20px 24px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); transition: all .3s; }
.adv-item:hover { background: rgba(255,255,255,.09); transform: translateX(4px); }
.adv-item i { font-size: 22px; color: var(--primary); margin-top: 4px; }
.adv-item h4 { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.adv-item p { font-size: 14px; color: rgba(255,255,255,.7); margin: 0; }
.adv-score { display: grid; gap: 24px; }
.score-card { background: rgba(255,255,255,.06); border-radius: var(--radius); padding: 28px; border: 1px solid rgba(255,255,255,.1); }
.score-card .score-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.score-card .score-head span { font-size: 16px; font-weight: 600; }
.score-card .score-head strong { font-family: var(--font-num); font-size: 24px; color: var(--gold); }
.score-bar { height: 8px; border-radius: 10px; background: rgba(255,255,255,.1); overflow: hidden; }
.score-bar i { display: block; height: 100%; border-radius: 10px; background: linear-gradient(90deg, var(--primary), var(--gold)); }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; counter-reset: process; }
.process-card { text-align: center; background: var(--white); border-radius: var(--radius); padding: 44px 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all .35s; position: relative; }
.process-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.process-card::before { counter-increment: process; content: counter(process); position: absolute; top: 20px; right: 24px; font-family: var(--font-num); font-size: 72px; font-weight: 700; color: var(--border); line-height: 1; opacity: .6; }
.process-card .process-icon { width: 68px; height: 68px; border-radius: 20px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; color: #fff; font-size: 26px; box-shadow: 0 8px 24px rgba(0,168,112,.3); }
.process-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.process-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: box-shadow .3s; }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item summary { list-style: none; padding: 24px 28px; font-size: 17px; font-weight: 600; color: var(--text); display: flex; justify-content: space-between; align-items: center; cursor: pointer; transition: color .3s; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 14px; color: var(--primary); transition: transform .3s; }
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 28px 24px; color: var(--text-secondary); font-size: 15px; line-height: 1.75; }

/* CTA */
.cta-section { padding: 100px 0; position: relative; background-size: cover; background-position: center; color: #fff; text-align: center; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,107,71,.9), rgba(26,29,33,.85)); }
.cta-inner { position: relative; z-index: 2; max-width: 640px; margin: 0 auto; padding: 0 24px; }
.cta-section h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.cta-section p { font-size: 18px; color: rgba(255,255,255,.85); margin-bottom: 36px; }
.cta-section .btn { font-size: 17px; padding: 16px 40px; }

/* Footer */
.site-footer { background: var(--ink); color: rgba(255,255,255,.7); padding: 80px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { color: #fff; font-size: 22px; margin-bottom: 16px; }
.footer-brand .logo span { background: linear-gradient(135deg, var(--primary), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.6); padding: 6px 0; transition: color .2s, padding-left .2s; }
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255,255,255,.45); }
.footer-bottom span { margin: 0 6px; }

/* Media Queries */
@media (max-width: 1024px) {
  .section { padding: 80px 0; }
  .features-grid { gap: 20px; }
  .feature-card .feature-body { padding: 24px 20px 28px; }
  .adv-grid { grid-template-columns: 1fr; gap: 40px; }
  .adv-score { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991px) {
  .main-nav { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: 0 20px 40px rgba(0,0,0,.08); border-bottom: 1px solid var(--border); align-items: stretch; }
  .main-nav.open { display: flex; }
  .main-nav .nav-link { padding: 12px 16px; border-radius: 10px; }
  .main-nav .nav-link.active::after { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .hero { min-height: 520px; padding: 80px 0 60px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .hero-stat .num { font-size: 32px; }
  .features-grid { grid-template-columns: 1fr; }
  .latest-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer { padding: 48px 0 24px; }
  .adv-score { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 36px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hero-stat { padding: 18px 10px; }
  .hero-stat .num { font-size: 28px; }
  .btn { padding: 12px 22px; font-size: 15px; }
  .section-header h2 { font-size: 26px; }
  .section-header p { font-size: 14px; }
  .feature-card h3 { font-size: 19px; }
  .news-card .news-cover { height: 200px; }
  .faq-item summary { font-size: 15px; padding: 18px 20px; }
  .faq-item .faq-body { padding: 0 20px 20px; font-size: 14px; }
  .cta-section .btn { width: 100%; }
}

/* roulang page: category1 */
:root {
  --primary: #00A870;
  --primary-dark: #006B47;
  --primary-light: #E6F7F0;
  --graphite: #1A1D21;
  --graphite-light: #24282D;
  --gold: #C79A5B;
  --gold-light: #F5EBDC;
  --bg-warm: #F6F4EF;
  --bg-white: #FFFFFF;
  --bg-dark: #1A1D21;
  --text-main: #22262A;
  --text-sub: #5A6368;
  --text-weak: #8E969B;
  --text-white: #FFFFFF;
  --border: #ECEBE6;
  --radius-lg: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 4px rgba(20, 30, 25, 0.06);
  --shadow-hover: 0 16px 40px rgba(15, 40, 30, 0.12);
  --shadow-dark: 0 20px 40px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s ease;
  --container: 1280px;
  --font-main: "PingFang SC", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Arial Narrow", 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-main); font-size: 16px; line-height: 1.75; color: var(--text-main); background: var(--bg-warm); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: var(--primary-light); color: var(--primary-dark); border-radius: 100px; font-size: 14px; font-weight: 600; letter-spacing: 0.02em; }
.badge-gold { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: var(--gold-light); color: #8A6232; border-radius: 100px; font-size: 14px; font-weight: 600; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 46px; padding: 0 28px; border-radius: 100px; font-size: 16px; font-weight: 600; letter-spacing: 0.02em; transition: var(--transition); border: 2px solid transparent; }
.btn i { font-size: 15px; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 168, 112, 0.28); }
.btn-outline { background: transparent; color: var(--text-main); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-white { background: #fff; color: var(--graphite); border-color: #fff; }
.btn-white:hover { background: var(--gold); color: #fff; border-color: var(--gold); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25); }
.btn-gold { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn-gold:hover { background: #B38245; border-color: #B38245; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(199, 154, 91, 0.3); }
.section-padding { padding: 96px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 64px; }
.section-head .section-eyebrow { display: block; font-size: 14px; font-weight: 700; letter-spacing: 0.08em; color: var(--primary); margin-bottom: 12px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(30px, 4vw, 40px); font-weight: 700; line-height: 1.25; letter-spacing: 0.01em; color: var(--text-main); }
.section-head p { margin-top: 16px; font-size: 16px; color: var(--text-sub); line-height: 1.75; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); box-shadow: 0 2px 12px rgba(26, 29, 33, 0.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; letter-spacing: 0.02em; color: var(--text-main); white-space: nowrap; }
.logo i { color: var(--primary); font-size: 22px; }
.logo span { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav .nav-link { font-size: 15px; font-weight: 500; color: var(--text-sub); position: relative; padding: 6px 2px; letter-spacing: 0.02em; }
.main-nav .nav-link::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px; background: var(--primary); border-radius: 2px; transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
.main-nav .nav-link:hover { color: var(--primary); }
.main-nav .nav-link:hover::after { transform: scaleX(1); }
.main-nav .nav-link.active { color: var(--primary); font-weight: 600; }
.main-nav .nav-link.active::after { transform: scaleX(1); }
.nav-cta { height: 40px; padding: 0 22px; font-size: 14px; border-radius: 100px; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: var(--bg-warm); color: var(--text-main); font-size: 18px; align-items: center; justify-content: center; }

/* Hero */
.category-hero { position: relative; background: var(--graphite); overflow: hidden; padding: 120px 0 100px; }
.category-hero .hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; opacity: 0.35; }
.category-hero .hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(26, 29, 33, 0.95) 0%, rgba(26, 29, 33, 0.75) 50%, rgba(0, 168, 112, 0.35) 100%); }
.category-hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 720px; color: var(--text-white); }
.hero-content .badge { background: rgba(0, 168, 112, 0.2); color: #6FE0B0; border: 1px solid rgba(0, 168, 112, 0.35); }
.hero-content h1 { font-size: clamp(40px, 6vw, 64px); font-weight: 800; line-height: 1.15; letter-spacing: 0.01em; margin: 24px 0 20px; }
.hero-content h1 .highlight { color: var(--gold); }
.hero-content p { font-size: 17px; line-height: 1.85; color: rgba(255, 255, 255, 0.85); margin-bottom: 36px; max-width: 620px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-meta { display: flex; align-items: center; gap: 28px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, 0.15); flex-wrap: wrap; }
.hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.7); }
.hero-meta-item i { color: var(--gold); font-size: 16px; }

/* Advantages */
.advantages { background: var(--bg-white); padding: 96px 0; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 28px; transition: var(--transition); position: relative; overflow: hidden; }
.adv-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--primary), var(--primary-dark)); opacity: 0; transition: var(--transition); }
.adv-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: rgba(0, 168, 112, 0.2); }
.adv-card:hover::before { opacity: 1; }
.adv-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--primary-light); color: var(--primary); margin-bottom: 20px; transition: var(--transition); }
.adv-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.adv-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* Sports Cover */
.sports-cover { background: var(--bg-warm); padding: 96px 0; }
.sports-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.sport-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.sport-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.sport-card .sport-img { height: 180px; overflow: hidden; position: relative; }
.sport-card .sport-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.sport-card:hover .sport-img img { transform: scale(1.05); }
.sport-card .sport-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0, 0, 0, 0) 30%, rgba(26, 29, 33, 0.5) 100%); }
.sport-card .sport-tag { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(26, 29, 33, 0.75); color: #fff; font-size: 12px; font-weight: 600; padding: 5px 14px; border-radius: 100px; backdrop-filter: blur(6px); }
.sport-card .sport-body { padding: 24px; }
.sport-card .sport-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.sport-card .sport-body p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; }
.sport-card .sport-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); }
.sport-card .sport-link:hover { gap: 12px; color: var(--primary-dark); }
.sport-card .sport-link i { font-size: 12px; }

/* How it works */
.how-works { background: var(--bg-dark); padding: 96px 0; position: relative; overflow: hidden; }
.how-works::before { content: ''; position: absolute; top: -60%; right: -20%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(0, 168, 112, 0.12) 0%, transparent 70%); border-radius: 50%; }
.how-works .section-head h2 { color: #fff; }
.how-works .section-head p { color: rgba(255, 255, 255, 0.65); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
.step-card { text-align: center; padding: 32px 20px; position: relative; }
.step-num { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); display: flex; align-items: center; justify-content: center; font-family: var(--font-num); font-size: 24px; font-weight: 700; color: #fff; box-shadow: 0 8px 24px rgba(0, 168, 112, 0.35); }
.step-card h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: rgba(255, 255, 255, 0.6); line-height: 1.7; }
.step-card::after { content: ''; position: absolute; top: 50%; right: -16px; width: 32px; height: 1px; border-top: 1px dashed rgba(255, 255, 255, 0.2); display: none; }
@media (min-width: 992px) {
  .step-card:not(:last-child)::after { display: block; }
}

/* Stats */
.stats-bar { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 72px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item h3 { font-family: var(--font-num); font-size: clamp(40px, 5vw, 56px); font-weight: 700; color: #fff; line-height: 1.2; letter-spacing: 0.03em; }
.stat-item h3 span { color: var(--gold); }
.stat-item p { font-size: 14px; color: rgba(255, 255, 255, 0.85); margin-top: 8px; font-weight: 500; }

/* Why us */
.why-us { background: var(--bg-white); padding: 96px 0; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.why-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hover); }
.why-visual img { width: 100%; height: 420px; object-fit: cover; }
.why-visual .why-float { position: absolute; bottom: 24px; left: 24px; right: 24px; background: rgba(26, 29, 33, 0.85); backdrop-filter: blur(10px); border-radius: var(--radius-sm); padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.why-float .float-label { font-size: 13px; color: rgba(255, 255, 255, 0.8); }
.why-float .float-value { font-family: var(--font-num); font-size: 28px; font-weight: 700; color: var(--gold); }
.why-list { list-style: none; }
.why-list li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--border); transition: var(--transition); }
.why-list li:last-child { border-bottom: none; }
.why-list li:hover { padding-left: 8px; }
.why-list .why-check { width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 4px; }
.why-list .why-text h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; color: var(--text-main); }
.why-list .why-text p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* FAQ */
.faq-section { background: var(--bg-warm); padding: 96px 0; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(0, 168, 112, 0.25); box-shadow: var(--shadow-sm); }
.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 28px; cursor: pointer; font-size: 17px; font-weight: 600; color: var(--text-main); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon { width: 32px; height: 32px; flex-shrink: 0; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; transition: var(--transition); }
.faq-item[open] summary .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-item .faq-answer { padding: 0 28px 24px; font-size: 15px; color: var(--text-sub); line-height: 1.8; }
.faq-item .faq-answer a { color: var(--primary); font-weight: 500; }
.faq-item .faq-answer a:hover { text-decoration: underline; }

/* CTA */
.cta-section { position: relative; background: var(--graphite); overflow: hidden; padding: 100px 0; }
.cta-section .cta-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: 0.25; }
.cta-section .cta-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26, 29, 33, 0.95) 0%, rgba(0, 107, 71, 0.85) 100%); }
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-content { max-width: 680px; margin: 0 auto; }
.cta-content .badge { background: rgba(199, 154, 91, 0.2); color: var(--gold); border: 1px solid rgba(199, 154, 91, 0.35); }
.cta-content h2 { font-size: clamp(32px, 5vw, 48px); font-weight: 800; color: #fff; line-height: 1.2; margin: 20px 0 16px; }
.cta-content p { font-size: 16px; color: rgba(255, 255, 255, 0.8); line-height: 1.8; margin-bottom: 32px; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-note { margin-top: 24px; font-size: 13px; color: rgba(255, 255, 255, 0.5); }

/* Footer */
.site-footer { background: var(--graphite); color: rgba(255, 255, 255, 0.72); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo i { color: var(--primary); }
.footer-brand .logo span { color: #fff; -webkit-text-fill-color: #fff; background: none; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255, 255, 255, 0.55); max-width: 360px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; letter-spacing: 0.05em; }
.footer-col a { display: block; font-size: 14px; color: rgba(255, 255, 255, 0.55); padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 24px 0; display: flex; align-items: center; justify-content: center; gap: 16px; font-size: 13px; color: rgba(255, 255, 255, 0.4); flex-wrap: wrap; }

/* Responsive */
@media (max-width: 1024px) {
  .adv-grid, .sports-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav { position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 24px 20px; border-bottom: 1px solid var(--border); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08); transform: translateY(-120%); opacity: 0; transition: var(--transition); z-index: 999; }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav .nav-link { padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--border); }
  .main-nav .nav-link:last-child { border-bottom: none; }
  .main-nav .nav-link::after { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .section-padding { padding: 64px 0; }
  .category-hero { padding: 72px 0 64px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { gap: 16px; margin-top: 32px; }
  .adv-grid, .sports-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: 1fr; row-gap: 32px; }
  .step-card::after { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .section-head { margin-bottom: 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .container { padding: 0 16px; }
  .why-visual img { height: 280px; }
}
@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr; }
  .logo { font-size: 16px; }
  .logo i { font-size: 18px; }
  .category-hero h1 { font-size: 36px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-item .faq-answer { padding: 0 20px 20px; }
}

/* roulang page: article */
:root{
  --primary:#00A870;
  --primary-dark:#006B47;
  --primary-light:rgba(0,168,112,.08);
  --ink:#1A1D21;
  --gold:#C79A5B;
  --bg-warm:#F6F4EF;
  --bg-white:#FFFFFF;
  --text-main:#22262A;
  --text-sub:#5A6368;
  --text-weak:#8E969B;
  --border:#ECEBE6;
  --radius-lg:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 4px rgba(20,30,25,.06);
  --shadow-hover:0 16px 40px rgba(15,40,30,.12);
  --header-h:72px;
  --font-main:"PingFang SC","Source Han Sans SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Arial Narrow",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  color:var(--text-main);
  background:var(--bg-warm);
  -webkit-font-smoothing:antialiased;
  padding-top:var(--header-h);
}
a{text-decoration:none;color:inherit;transition:color .25s}
img{max-width:100%;display:block}
button,input,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.sep{color:var(--text-weak);margin:0 10px}
/* Button */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;height:46px;padding:0 28px;border-radius:12px;
  font-size:15px;font-weight:600;border:2px solid transparent;
  cursor:pointer;transition:all .3s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,168,112,.3)}
.btn-outline{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:#b8894a;transform:translateY(-2px)}
/* Buton focus */
.btn:focus{outline:3px solid rgba(0,168,112,.4);outline-offset:2px}
/* Badge */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-light);color:var(--primary-dark);
  border-radius:30px;padding:6px 16px;font-size:13px;font-weight:600;
}
.badge-gold{background:rgba(199,154,91,.15);color:#b8894a}
/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  height:var(--header-h);
  transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 4px 24px rgba(0,0,0,.06)}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--text-main)}
.logo i{color:var(--primary);font-size:24px;background:var(--primary-light);width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.logo span{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  display:block;padding:9px 16px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--text-sub);
  transition:all .25s;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary-dark);background:var(--primary-light);font-weight:600}
.nav-cta{height:42px;padding:0 22px;font-size:14px;border-radius:10px}
.nav-toggle{
  display:none;background:none;border:0;font-size:22px;color:var(--text-main);
  cursor:pointer;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;
  transition:background .25s;
}
.nav-toggle:hover{background:var(--bg-warm)}
/* Article Hero */
.article-hero{
  position:relative;color:#fff;
  padding:130px 0 76px;
  background:linear-gradient(135deg,rgba(26,29,33,.92),rgba(0,107,71,.72)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-hero .breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.75);margin-bottom:28px;gap:4px;
}
.article-hero .breadcrumb a{color:rgba(255,255,255,.85)}
.article-hero .breadcrumb a:hover{color:#fff}
.article-hero .breadcrumb .sep{margin:0 8px}
.article-hero h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.22;
  font-weight:800;letter-spacing:0.01em;max-width:860px;
  margin-bottom:22px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:rgba(255,255,255,.8)}
.article-meta i{margin-right:5px;color:var(--gold)}
.article-meta .badge{background:rgba(199,154,91,.18);color:#e8c794}
/* Article Body */
.article-body{padding:70px 0 80px;background:var(--bg-warm)}
.article-main{
  max-width:880px;margin:0 auto;background:var(--bg-white);
  border-radius:var(--radius-lg);border:1px solid var(--border);
  padding:56px 64px;box-shadow:var(--shadow-sm);
}
.article-content{
  font-size:17px;line-height:1.9;color:var(--text-main);
  word-break:break-word;
}
.article-content p{margin-bottom:1.6em}
.article-content h2{
  font-size:26px;font-weight:700;margin:2em 0 .9em;
  line-height:1.4;letter-spacing:.01em;
  padding-left:14px;border-left:4px solid var(--primary);
}
.article-content h3{
  font-size:20px;font-weight:600;margin:1.8em 0 .7em;line-height:1.45;
}
.article-content img{border-radius:12px;margin:1.5em 0;box-shadow:var(--shadow-sm)}
.article-content ul,.article-content ol{padding-left:1.6em;margin-bottom:1.6em}
.article-content li{margin-bottom:.5em}
.article-content blockquote{
  border-left:4px solid var(--primary);
  background:var(--bg-warm);padding:16px 24px;
  border-radius:0 12px 12px 0;margin:1.8em 0;color:var(--text-sub);
}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-content table th,.article-content table td{border:1px solid var(--border);padding:12px 14px;text-align:left}
.article-content table th{background:var(--bg-warm);font-weight:600}
.article-content a{color:var(--primary);font-weight:500;border-bottom:1px solid transparent}
.article-content a:hover{border-bottom-color:var(--primary)}
.article-content hr{border:0;border-top:1px solid var(--border);margin:3em 0}
/* Not Found */
.not-found{
  max-width:640px;margin:40px auto;text-align:center;
  padding:60px 40px;background:var(--bg-white);
  border-radius:var(--radius-lg);border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.not-found i{font-size:56px;color:var(--gold);margin-bottom:20px}
.not-found h2{font-size:28px;margin-bottom:14px}
.not-found p{color:var(--text-sub);margin-bottom:28px}
/* Related Section */
.related-section{padding:80px 0;background:var(--bg-white)}
.section-head{margin-bottom:48px;text-align:center}
.section-head .section-eyebrow{
  font-size:14px;font-weight:600;color:var(--primary);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;
  display:inline-flex;align-items:center;gap:8px;
}
.section-head h2{font-size:clamp(30px,4vw,38px);font-weight:700;line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--text-sub);max-width:620px;margin:0 auto}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
}
.related-card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:all .35s ease;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.card-img{position:relative;overflow:hidden;aspect-ratio:16/10}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .card-img img{transform:scale(1.06)}
.card-img .tag{
  position:absolute;left:16px;top:16px;
  background:rgba(0,0,0,.62);backdrop-filter:blur(8px);
  color:#fff;font-size:12px;font-weight:600;
  padding:5px 13px;border-radius:30px;letter-spacing:.02em;
}
.card-body{padding:24px 24px 26px}
.card-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.card-body h3 a{color:var(--text-main)}
.card-body h3 a:hover{color:var(--primary)}
.card-body p{font-size:14px;color:var(--text-sub);line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.read-more i{font-size:12px;transition:transform .3s}
.related-card:hover .read-more i{transform:translateX(4px)}
/* Features Section */
.features-section{padding:80px 0;background:var(--bg-warm)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-item{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:38px 32px;
  transition:all .3s ease;text-align:center;
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-icon{
  width:68px;height:68px;border-radius:18px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;margin:0 auto 22px;
}
.feature-item h3{font-size:21px;font-weight:600;margin-bottom:12px}
.feature-item p{font-size:14px;color:var(--text-sub);line-height:1.7}
/* FAQ */
.faq-section{padding:80px 0;background:var(--bg-white)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{
  border:1px solid var(--border);border-radius:14px;
  background:var(--bg-white);overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.faq-item:hover{border-color:#c9e6db}
.faq-item[open]{border-color:var(--primary);box-shadow:0 6px 24px rgba(0,168,112,.08)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;cursor:pointer;font-size:16px;font-weight:600;
  list-style:none;color:var(--text-main);transition:color .25s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .faq-icon{
  width:32px;height:32px;border-radius:50%;flex-shrink:0;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;transition:all .3s;
}
.faq-item[open] summary .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-item .faq-answer{padding:0 26px 24px;color:var(--text-sub);font-size:15px;line-height:1.8}
/* CTA */
.cta-section{padding:72px 0;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);position:relative;overflow:hidden}
.cta-section::before{
  content:'';position:absolute;top:-50%;right:-20%;
  width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-section::after{
  content:'';position:absolute;bottom:-30%;left:-10%;
  width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-inner{position:relative;z-index:1;text-align:center;color:#fff;max-width:720px;margin:0 auto}
.cta-inner h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;margin-bottom:16px;line-height:1.3}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.9);margin-bottom:32px}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-section .btn{background:#fff;color:var(--primary-dark);border-color:#fff}
.cta-section .btn:hover{background:rgba(255,255,255,.9);transform:translateY(-2px)}
.cta-section .btn.btn-gold{border-color:var(--gold);background:var(--gold);color:#fff}
.cta-section .btn.btn-gold:hover{background:#b8894a}
/* Footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo i{color:#fff;background:rgba(255,255,255,.1)}
.footer-brand p{max-width:340px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:16px;color:#fff;font-weight:600;margin-bottom:20px}
.footer-col a{
  display:block;color:rgba(255,255,255,.65);margin-bottom:12px;
  transition:color .25s,padding-left .25s;
}
.footer-col a:hover{color:var(--primary);padding-left:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0;display:flex;align-items:center;
  justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom span{display:inline-flex;align-items:center;gap:6px}
/* Responsive */
@media(max-width:992px){
  .nav-toggle{
    display:flex;
  }
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:var(--bg-white);
    flex-direction:column;align-items:stretch;
    gap:6px;padding:16px 24px 24px;
    border-bottom:1px solid var(--border);
    box-shadow:0 16px 40px rgba(0,0,0,.08);
    transform:translateY(-120%);
    transition:transform .4s ease;
    visibility:hidden;
  }
  .main-nav.open{
    transform:translateY(0);
    visibility:visible;
  }
  .nav-link{padding:13px 16px;border-radius:12px}
  .nav-cta{margin-left:auto}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .article-main{padding:40px 36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:768px){
  .article-hero{padding:120px 0 56px}
  .article-hero h1{font-size:30px}
  .article-main{padding:30px 24px;border-radius:0;border-left:0;border-right:0}
  .related-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .container{padding:0 20px}
  .section-head h2{font-size:28px}
  .cta-btns{flex-direction:column;align-items:center}
  .cta-btns .btn{width:100%;max-width:320px}
}
@media(max-width:520px){
  .nav-cta{display:none}
  .logo span{font-size:16px}
  .logo i{width:34px;height:34px;font-size:18px}
  .article-hero{padding:96px 0 44px}
  .article-hero h1{font-size:25px;line-height:1.3}
  .article-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .article-content{font-size:16px}
  .article-main{padding:24px 20px}
  .feature-item{padding:30px 24px}
  .faq-item summary{padding:18px 18px}
  .faq-item .faq-answer{padding:0 18px 20px}
  .cta-section{padding:56px 0}
  .cta-inner p{font-size:15px}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
}

/* roulang page: category2 */
:root {
  --primary: #00A870;
  --primary-dark: #006B47;
  --ink: #1A1D21;
  --gold: #C79A5B;
  --bg: #F6F4EF;
  --white: #FFFFFF;
  --text: #22262A;
  --text-sub: #5A6368;
  --text-weak: #8E969B;
  --border: #ECEBE6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 4px rgba(20,30,25,0.06);
  --shadow-hover: 0 16px 40px rgba(15,40,30,0.12);
  --container: 1280px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; border: none; outline: none; }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0,168,112,0.28);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,107,71,0.32);
}
.btn-light {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-light:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn:focus-visible, .nav-link:focus-visible, .faq-q:focus-visible {
  outline: 3px solid rgba(0,168,112,0.45);
  outline-offset: 2px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  transition: opacity 0.3s;
}
.logo:hover { opacity: 0.85; }
.logo i {
  color: var(--primary);
  font-size: 24px;
}
.main-nav {
  display: flex;
  gap: 6px;
  align-items: center;
}
.nav-link {
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all 0.3s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(0,168,112,0.08);
}
.nav-link.active {
  color: #fff;
  background: var(--primary);
  font-weight: 600;
}
.nav-cta {
  height: 42px;
  padding: 0 24px;
  font-size: 14px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
}
.nav-toggle:hover { background: rgba(0,168,112,0.08); }
.hero {
  position: relative;
  padding: 120px 0 140px;
  background: linear-gradient(115deg, rgba(26,29,33,0.9) 30%, rgba(26,29,33,0.65)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero-content { max-width: 780px; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(199,154,91,0.16);
  border: 1px solid rgba(199,154,91,0.45);
  color: #E4C896;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.01em;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.75;
  color: rgba(255,255,255,0.85);
  margin-top: 22px;
  max-width: 640px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 38px;
  flex-wrap: wrap;
}
.section { padding: 100px 0; }
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--primary);
  background: rgba(0,168,112,0.08);
  border: 1px solid rgba(0,168,112,0.2);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(30px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.01em;
}
.section-head p {
  margin-top: 16px;
  color: var(--text-sub);
  font-size: 16px;
}
.feature-section { background: var(--white); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: all 0.35s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  margin-bottom: 24px;
  box-shadow: 0 8px 20px rgba(0,168,112,0.26);
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-card p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.75;
}
.coverage-section {
  background: var(--bg);
  padding: 100px 0;
}
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.coverage-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}
.coverage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.coverage-media {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.coverage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.coverage-card:hover .coverage-media img { transform: scale(1.05); }
.coverage-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(26,29,33,0.72);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.03em;
}
.coverage-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.coverage-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.coverage-body p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}
.coverage-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: gap 0.3s;
}
.coverage-link:hover { gap: 10px; }
.stats-section {
  background: var(--ink);
  color: #fff;
  padding: 90px 0;
}
.stats-section .section-head h2 { color: #fff; }
.stats-section .section-head p { color: rgba(255,255,255,0.65); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.stat-card {
  text-align: center;
  padding: 44px 24px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.35s ease;
}
.stat-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(199,154,91,0.35);
  transform: translateY(-4px);
}
.stat-num {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 800;
  color: var(--gold);
  font-family: "DIN Alternate", "Arial Narrow", sans-serif;
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.stat-label {
  margin-top: 12px;
  color: rgba(255,255,255,0.72);
  font-size: 15px;
}
.process-section { background: var(--white); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process-step {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px 32px;
  transition: all 0.35s ease;
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-family: "DIN Alternate", "Arial Narrow", sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(0,168,112,0.24);
}
.process-step h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
}
.faq-section {
  background: var(--bg);
  padding: 100px 0;
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item.open { border-color: rgba(0,168,112,0.32); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  cursor: pointer;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  gap: 20px;
}
.faq-q i {
  color: var(--primary);
  font-size: 16px;
  transition: transform 0.35s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 28px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.open .faq-a {
  max-height: 400px;
  padding: 0 28px 24px;
}
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(199,154,91,0.18);
}
.cta-box {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}
.cta-box h2 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.2;
}
.cta-box p {
  margin-top: 18px;
  font-size: 16px;
  color: rgba(255,255,255,0.88);
  line-height: 1.75;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 36px;
  flex-wrap: wrap;
}
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.75);
  padding: 80px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { color: #fff; }
.footer-brand .logo i { color: var(--gold); }
.footer-brand p {
  margin-top: 16px;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  line-height: 1.75;
  max-width: 360px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  padding: 6px 0;
  transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding-top: 24px;
  color: rgba(255,255,255,0.4);
  font-size: 13px;
}
@media (max-width: 991px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px;
    gap: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-bottom: 1px solid var(--border);
    transform: translateY(-130%);
    transition: transform 0.4s ease;
    z-index: 999;
  }
  .main-nav.open { transform: translateY(0); }
  .nav-link { text-align: center; padding: 14px 18px; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero { padding: 80px 0 100px; }
  .hero-sub { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .faq-q { padding: 18px 20px; font-size: 16px; }
  .faq-a { padding: 0 20px; }
  .faq-item.open .faq-a { padding: 0 20px 20px; }
  .cta-section { padding: 70px 0; }
  .footer-bottom { flex-direction: column; align-items: center; gap: 6px; text-align: center; }
}
@media (max-width: 520px) {
  .header-inner { height: 64px; }
  .logo { font-size: 17px; }
  .logo i { font-size: 20px; }
  .main-nav { top: 64px; }
  .hero h1 { font-size: 34px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .coverage-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .faq-q { font-size: 15px; }
  .coverage-media { height: 200px; }
}

/* roulang page: category3 */
:root {
  --green: #00A870;
  --green-dark: #006B47;
  --gold: #C79A5B;
  --graphite: #1A1D21;
  --bg-warm: #F6F4EF;
  --white: #FFFFFF;
  --text-main: #22262A;
  --text-secondary: #5A6368;
  --text-weak: #8E969B;
  --border: #ECEBE6;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 4px rgba(20,30,25,0.06);
  --shadow-hover: 0 16px 40px rgba(15,40,30,0.12);
  --container: 1280px;
  --space: 32px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background: var(--bg-warm);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

.section { padding: 96px 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-header .tag { display: inline-block; background: rgba(0,168,112,0.10); color: var(--green); font-size: 14px; font-weight: 600; padding: 6px 18px; border-radius: 100px; letter-spacing: 0.05em; margin-bottom: 16px; }
.section-header h2 { font-size: clamp(30px, 4vw, 40px); font-weight: 700; line-height: 1.25; letter-spacing: 0.01em; }
.section-header p { margin-top: 14px; color: var(--text-secondary); font-size: 16px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 32px; border-radius: var(--radius-md);
  font-size: 16px; font-weight: 600; line-height: 1;
  transition: all 0.3s ease; border: 2px solid transparent; white-space: nowrap;
}
.btn:focus-visible { outline: 3px solid rgba(0,168,112,0.35); outline-offset: 2px; }
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,0.65); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--white); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-light { background: var(--white); color: var(--text-main); }
.btn-light:hover { background: var(--bg-warm); transform: translateY(-2px); box-shadow: 0 16px 40px rgba(0,0,0,0.18); }
.btn-light:active { transform: translateY(0); }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text-main); letter-spacing: 0.01em; }
.logo i { color: var(--green); font-size: 22px; }
.main-nav { display: flex; align-items: center; gap: 34px; }
.nav-link { font-size: 16px; color: var(--text-secondary); font-weight: 500; padding: 8px 2px; position: relative; transition: color 0.3s ease; }
.nav-link:hover { color: var(--green); }
.nav-link.active { color: var(--text-main); font-weight: 600; }
.nav-link.active::after { content: ""; position: absolute; bottom: 0; left: 0; width: 100%; height: 3px; background: var(--green); border-radius: 2px; }
.nav-cta { height: 42px; padding: 0 24px; font-size: 15px; }
.nav-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: var(--radius-md); color: var(--text-main); font-size: 18px; transition: all 0.3s ease; }
.nav-toggle:hover { border-color: var(--green); color: var(--green); }
.nav-toggle:focus-visible { outline: 3px solid rgba(0,168,112,0.35); }

.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(26,29,33,0.92) 0%, rgba(26,29,33,0.72) 55%, rgba(0,168,112,0.55) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color: var(--white);
  padding: 120px 0 110px;
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid rgba(199,154,91,0.65); color: var(--gold);
  font-size: 14px; font-weight: 600; letter-spacing: 0.04em;
  padding: 7px 20px; border-radius: 100px; background: rgba(0,0,0,0.25);
  margin-bottom: 28px;
}
.page-hero h1 { font-size: clamp(40px, 6vw, 64px); font-weight: 800; line-height: 1.15; letter-spacing: 0.01em; }
.page-hero .hero-sub {
  max-width: 680px; margin: 24px auto 0; font-size: 18px; line-height: 1.8;
  color: rgba(255,255,255,0.88);
}
.hero-actions { display: flex; justify-content: center; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

.stats-band {
  background: linear-gradient(120deg, var(--green) 0%, var(--green-dark) 100%);
  color: var(--white);
  padding: 48px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item { padding: 12px 8px; }
.stat-num { font-size: 46px; font-weight: 800; color: var(--gold); font-family: "DIN Alternate", "Arial Narrow", sans-serif; letter-spacing: 0.04em; line-height: 1.2; }
.stat-label { margin-top: 6px; font-size: 15px; color: rgba(255,255,255,0.86); }

.features { background: var(--white); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 36px 28px; text-align: left;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(0,168,112,0.35); }
.feature-card i {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(0,168,112,0.10); color: var(--green); font-size: 22px;
  margin-bottom: 22px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.75; }

.data-modules { background: var(--bg-warm); }
.modules-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.module-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
}
.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.module-img { aspect-ratio: 16 / 10; overflow: hidden; }
.module-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.module-card:hover .module-img img { transform: scale(1.05); }
.module-body { padding: 26px 28px 30px; }
.module-body h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.module-body p { color: var(--text-secondary); font-size: 15px; line-height: 1.75; }

.scenarios { background: var(--white); }
.scenarios-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
  background: var(--bg-warm); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 38px 30px; text-align: left; transition: all 0.35s ease;
}
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); background: var(--white); }
.scenario-card i { font-size: 28px; color: var(--green); margin-bottom: 20px; }
.scenario-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.scenario-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.75; }

.process-section { background: var(--graphite); color: var(--white); }
.process-section .tag { background: rgba(199,154,91,0.14); color: var(--gold); }
.process-section .section-header p { color: rgba(255,255,255,0.65); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  background: rgba(255,255,255,0.055); border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg); padding: 36px 28px; text-align: left;
  transition: all 0.35s ease;
}
.process-step:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
.step-num { font-size: 36px; font-weight: 800; color: var(--gold); font-family: "DIN Alternate", "Arial Narrow", sans-serif; line-height: 1; }
.process-step h3 { font-size: 20px; font-weight: 700; margin: 18px 0 10px; }
.process-step p { color: rgba(255,255,255,0.65); font-size: 15px; line-height: 1.7; }

.faq { background: var(--bg-warm); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: box-shadow 0.3s ease; box-shadow: var(--shadow-sm);
}
.faq-item[open] { box-shadow: var(--shadow-hover); border-color: rgba(0,168,112,0.3); }
.faq-item summary {
  list-style: none; display: flex; align-items: center; justify-content: space-between;
  padding: 24px 28px; cursor: pointer; font-size: 17px; font-weight: 600; color: var(--text-main);
  transition: color 0.3s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--green); }
.faq-item summary::after {
  content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900;
  color: var(--green); font-size: 15px; transition: transform 0.3s ease; flex-shrink: 0; margin-left: 16px;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-answer { padding: 0 28px 26px; color: var(--text-secondary); font-size: 15px; line-height: 1.8; }
.faq-answer a { color: var(--green); font-weight: 500; }
.faq-answer a:hover { text-decoration: underline; }

.cta-section {
  background: linear-gradient(135deg, rgba(26,29,33,0.92) 0%, rgba(0,104,71,0.88) 100%),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  color: var(--white); text-align: center; padding: 110px 0;
}
.cta-section h2 { font-size: clamp(32px, 4.5vw, 46px); font-weight: 800; line-height: 1.2; }
.cta-section p { max-width: 560px; margin: 18px auto 0; font-size: 17px; color: rgba(255,255,255,0.85); }
.cta-section .btn { margin-top: 36px; }

.site-footer { background: var(--graphite); color: rgba(255,255,255,0.7); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand .logo i { color: var(--green); }
.footer-brand p { max-width: 380px; font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); }
.footer-col h4 { color: var(--white); font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; padding: 5px 0; font-size: 14px; color: rgba(255,255,255,0.55); transition: color 0.3s ease; }
.footer-col a:hover { color: var(--green); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10); margin-top: 48px; padding-top: 24px;
  display: flex; justify-content: center; align-items: center; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255,255,255,0.4);
}

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: 32px; }
}

@media (max-width: 991px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); flex-direction: column; align-items: stretch;
    padding: 16px 24px 24px; gap: 6px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(15,40,30,0.10);
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 14px 8px; font-size: 16px; border-radius: var(--radius-sm); }
  .nav-link:hover { background: rgba(0,168,112,0.06); }
  .nav-link.active { background: rgba(0,168,112,0.08); }
  .nav-link.active::after { display: none; }
  .nav-cta { display: none; }
  .site-header .header-inner { height: 68px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .container { padding: 0 16px; }
  .page-hero { padding: 80px 0 72px; }
  .page-hero h1 { font-size: clamp(32px, 8vw, 44px); }
  .page-hero .hero-sub { font-size: 16px; }
  .features-grid, .modules-grid, .scenarios-grid, .process-grid { grid-template-columns: 1fr; }
  .stat-num { font-size: 36px; }
  .section-header { margin-bottom: 40px; }
  .section-header p { font-size: 15px; }
  .cta-section { padding: 72px 0; }
  .cta-section p { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (max-width: 520px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; }
  .faq-item summary { padding: 20px 20px; font-size: 16px; }
  .faq-answer { padding: 0 20px 22px; }
  .feature-card, .scenario-card, .process-step { padding: 28px 22px; }
  .module-body { padding: 22px 20px 24px; }
  .footer-bottom { flex-direction: column; gap: 4px; text-align: center; }
}