/* roulang page: index */
:root {
  --primary: #00B386;
  --primary-light: #00D2A8;
  --primary-lighter: #45E0B0;
  --accent: #FF6A00;
  --accent-light: #FF9A44;
  --dark: #0B2018;
  --dark-2: #123228;
  --bg: #F4F8F6;
  --white: #FFFFFF;
  --text: #0B2018;
  --text-body: #2E3D37;
  --text-muted: #7A8B84;
  --border: #D6E4DF;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(11, 32, 24, 0.06);
  --shadow-hover: 0 12px 32px rgba(11, 32, 24, 0.12);
  --shadow-glow: 0 0 0 4px rgba(0, 179, 134, 0.08);
  --gradient-brand: linear-gradient(135deg, #00B386 0%, #00D2A8 60%, #45E0B0 100%);
  --gradient-promo: linear-gradient(90deg, #FF6A00 0%, #FF9A44 100%);
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 28px;
  --space-lg: 48px;
  --space-xl: 80px;
  --container: 1200px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "PingFang SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.75; color: var(--text-body); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: opacity .2s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; position: relative; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(0,179,134,.08); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 18px; border-radius: var(--radius-pill); letter-spacing: .3px; margin-bottom: 14px; }
.section-title { font-size: 34px; font-weight: 800; color: var(--text); letter-spacing: -.5px; line-height: 1.3; }
.section-sub { max-width: 640px; margin: 12px auto 0; color: var(--text-muted); font-size: 15px; line-height: 1.7; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 52px; padding: 0 32px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 700; transition: all .25s ease; letter-spacing: .2px; }
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: 0 6px 20px rgba(0,179,134,.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0,179,134,.36); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(0,179,134,.2); }
.btn-primary:focus-visible { outline: 3px solid rgba(0,179,134,.35); outline-offset: 2px; }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,.7); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-outline:focus-visible { outline: 3px solid rgba(255,255,255,.4); outline-offset: 2px; }
.btn-promo { background: var(--gradient-promo); color: #fff; box-shadow: 0 6px 20px rgba(255,106,0,.28); }
.btn-promo:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,106,0,.38); }
.btn-promo:active { transform: translateY(0); }
.btn-promo:focus-visible { outline: 3px solid rgba(255,106,0,.35); outline-offset: 2px; }
.btn-ghost { background: rgba(0,179,134,.08); color: var(--primary); }
.btn-ghost:hover { background: rgba(0,179,134,.14); }
.btn-ghost:active { background: rgba(0,179,134,.2); }
.btn-ghost:focus-visible { outline: 3px solid rgba(0,179,134,.25); outline-offset: 2px; }
.btn-block { width: 100%; }

/* 头部导航 */
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--dark); height: 72px; box-shadow: 0 4px 20px rgba(11,32,24,.3); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 28px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon { width: 40px; height: 40px; background: var(--gradient-brand); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; color: #fff; letter-spacing: 0; box-shadow: 0 4px 12px rgba(0,179,134,.3); }
.logo-text { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.main-nav a { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: var(--radius-pill); color: rgba(255,255,255,.75); font-size: 15px; font-weight: 500; transition: all .25s; position: relative; }
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.06); }
.main-nav a.active { color: #fff; font-weight: 600; }
.main-nav a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 18px; height: 3px; border-radius: 3px; background: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.countdown-pill { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.15); color: #fff; padding: 7px 18px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; }
.countdown-pill .cd-num { background: var(--accent); color: #fff; padding: 2px 6px; border-radius: 6px; font-family: var(--font-num); font-size: 14px; font-weight: 700; min-width: 26px; text-align: center; }
.btn-download { display: inline-flex; align-items: center; gap: 8px; background: var(--gradient-brand); color: #fff; height: 40px; padding: 0 22px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 700; transition: all .25s; box-shadow: 0 4px 14px rgba(0,179,134,.3); }
.btn-download:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,179,134,.4); }
.btn-download:active { transform: translateY(0); }
.btn-download:focus-visible { outline: 3px solid rgba(0,179,134,.35); outline-offset: 2px; }
.btn-download svg { width: 15px; height: 15px; }
.hamburger { display: none; width: 44px; height: 44px; border-radius: 12px; background: rgba(255,255,255,.1); align-items: center; justify-content: center; color: #fff; transition: background .2s; }
.hamburger:hover { background: rgba(255,255,255,.18); }
.hamburger span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; position: relative; transition: all .3s; }
.hamburger span::before, .hamburger span::after { content: ''; position: absolute; left: 0; width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s; }
.hamburger span::before { top: -7px; }
.hamburger span::after { top: 7px; }
.hamburger.open span { background: transparent; }
.hamburger.open span::before { top: 0; transform: rotate(45deg); }
.hamburger.open span::after { top: 0; transform: rotate(-45deg); }

/* 移动端导航 */
.mobile-nav { display: none; background: var(--dark); padding: 16px 24px 24px; position: fixed; top: 72px; left: 0; right: 0; z-index: 999; border-top: 1px solid rgba(255,255,255,.06); box-shadow: 0 16px 40px rgba(0,0,0,.3); }
.mobile-nav.open { display: block; }
.mobile-nav a { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: var(--radius-sm); color: rgba(255,255,255,.8); font-size: 16px; font-weight: 500; transition: background .2s; }
.mobile-nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.mobile-nav a.active { background: var(--gradient-brand); color: #fff; font-weight: 600; }
.mobile-nav .mobile-cta { margin-top: 12px; display: flex; gap: 10px; }
.mobile-nav .mobile-cta .btn { flex: 1; height: 46px; font-size: 14px; }

/* Hero */
.hero { position: relative; background: linear-gradient(135deg, rgba(11,32,24,.92) 0%, rgba(11,32,24,.78) 50%, rgba(0,179,134,.55) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; padding: 100px 0 90px; overflow: hidden; }
.hero::after { content: ''; position: absolute; right: -120px; top: -120px; width: 400px; height: 400px; border-radius: 50%; background: rgba(0,179,134,.12); filter: blur(60px); pointer-events: none; }
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content .hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); padding: 7px 20px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; color: rgba(255,255,255,.9); backdrop-filter: blur(8px); margin-bottom: 24px; }
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(255,106,0,.2); }
.hero h1 { font-size: 52px; font-weight: 800; letter-spacing: -1px; line-height: 1.2; margin-bottom: 18px; color: #fff; }
.hero h1 .accent-text { color: var(--primary-lighter); }
.hero h1 .promo-text { color: var(--accent-light); }
.hero-desc { font-size: 18px; color: rgba(255,255,255,.85); max-width: 520px; margin-bottom: 36px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-btn { height: 56px; padding: 0 38px; font-size: 16px; border-radius: var(--radius-pill); display: inline-flex; align-items: center; gap: 10px; font-weight: 700; transition: all .25s; }
.hero-btn svg { width: 18px; height: 18px; }
.hero-btn-primary { background: var(--gradient-promo); color: #fff; box-shadow: 0 8px 28px rgba(255,106,0,.35); }
.hero-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(255,106,0,.45); }
.hero-btn-primary:active { transform: translateY(0); }
.hero-btn-ghost { background: transparent; border: 2px solid rgba(255,255,255,.6); color: #fff; }
.hero-btn-ghost:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-3px); }
.hero-btn-ghost:active { transform: translateY(0); }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-stat { display: flex; flex-direction: column; gap: 2px; }
.hero-stat .num { font-family: var(--font-num); font-size: 34px; font-weight: 800; color: var(--primary-lighter); line-height: 1; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,.65); }
.hero-visual { position: relative; }
.hero-visual-main { border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.3); aspect-ratio: 3/4; max-width: 380px; margin: 0 auto; border: 3px solid rgba(255,255,255,.2); position: relative; }
.hero-visual-main img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual-main::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11,32,24,.4) 0%, transparent 40%); }
.hero-visual-card { position: absolute; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-radius: var(--radius-md); padding: 14px 18px; box-shadow: 0 16px 40px rgba(0,0,0,.2); color: var(--text); display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 600; }
.hero-visual-card .v-icon { width: 34px; height: 34px; border-radius: 10px; background: var(--gradient-brand); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; }
.hero-visual-card.top { top: 24px; right: -16px; }
.hero-visual-card.bottom { bottom: 60px; left: -24px; }
.hero-visual-card .v-num { font-family: var(--font-num); font-size: 22px; font-weight: 800; color: var(--primary); line-height: 1; }

/* 优惠阶梯 */
.plans { background: var(--bg); }
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-items: stretch; }
.plan-card { background: var(--white); border-radius: var(--radius-lg); padding: 34px 30px; box-shadow: var(--shadow-card); transition: all .3s ease; position: relative; display: flex; flex-direction: column; border: 1px solid transparent; }
.plan-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.plan-card.featured { transform: scale(1.04); border: 2px solid var(--accent); box-shadow: 0 20px 48px rgba(255,106,0,.16); z-index: 2; }
.plan-card.featured:hover { transform: scale(1.04) translateY(-6px); box-shadow: 0 28px 56px rgba(255,106,0,.22); }
.plan-card .plan-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--gradient-promo); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 18px; border-radius: var(--radius-pill); box-shadow: 0 6px 16px rgba(255,106,0,.3); letter-spacing: .5px; display: none; }
.plan-card.featured .plan-badge { display: block; }
.plan-card .plan-icon { width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 20px; }
.plan-icon.new { background: rgba(0,179,134,.12); color: var(--primary); }
.plan-icon.month { background: rgba(255,106,0,.12); color: var(--accent); }
.plan-icon.year { background: rgba(11,32,24,.1); color: var(--dark); }
.plan-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.plan-card .plan-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.plan-price-row { display: flex; align-items: baseline; gap: 10px; margin-bottom: 22px; }
.plan-price { font-family: var(--font-num); font-size: 42px; font-weight: 800; color: var(--text); line-height: 1; }
.plan-price .unit { font-size: 16px; font-weight: 600; color: var(--text-muted); }
.plan-original { font-size: 14px; color: var(--text-muted); text-decoration: line-through; }
.plan-list { list-style: none; margin-bottom: 28px; flex: 1; }
.plan-list li { display: flex; align-items: flex-start; gap: 10px; padding: 7px 0; font-size: 14px; color: var(--text-body); line-height: 1.5; }
.plan-list li strong { font-weight: 700; }
.plan-list .li-icon { width: 20px; height: 20px; border-radius: 50%; background: rgba(0,179,134,.12); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0; margin-top: 3px; }
.plan-card .btn { margin-top: auto; width: 100%; height: 50px; }
.plan-card.featured .btn { background: var(--gradient-promo); box-shadow: 0 6px 18px rgba(255,106,0,.3); }
.plan-card.featured .btn:hover { box-shadow: 0 10px 28px rgba(255,106,0,.4); }

/* 套餐对比 */
.compare { background: var(--white); }
.compare-box { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); overflow: hidden; border: 1px solid #edf2ef; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.compare-table th { background: var(--dark); color: #fff; padding: 18px 16px; font-size: 15px; font-weight: 700; text-align: center; }
.compare-table th:first-child { text-align: left; padding-left: 28px; border-radius: var(--radius-lg) 0 0 0; }
.compare-table th:last-child { border-radius: 0 var(--radius-lg) 0 0; }
.compare-table td { padding: 16px; border-bottom: 1px solid #edf2ef; text-align: center; color: var(--text-body); }
.compare-table tr:last-child td { border-bottom: none; padding-bottom: 22px; }
.compare-table td:first-child { text-align: left; padding-left: 28px; color: var(--text); font-weight: 600; }
.compare-table td:first-child .feat-icon { display: inline-block; margin-right: 8px; }
.compare-table .rec-col { background: rgba(255,106,0,.05); position: relative; }
.compare-table .rec-tag { position: absolute; top: 0; right: 0; background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 12px; border-radius: 0 0 0 12px; }
.check-mark { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; }
.cross-mark { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: #e8edeb; color: #5f6f68; font-size: 12px; font-weight: 700; }
.compare-note { text-align: center; font-size: 13px; color: var(--text-muted); padding: 16px 0 0; }

/* 限时入口 */
.promo-banner { background: linear-gradient(90deg, #FF6A00 0%, #FF9A44 100%), url('/assets/images/backpic/back-2.png') center/cover; background-blend-mode: overlay; padding: 60px 0; position: relative; overflow: hidden; }
.promo-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(255,106,0,.88) 0%, rgba(255,154,68,.72) 100%); }
.promo-inner { position: relative; text-align: center; color: #fff; z-index: 1; }
.promo-inner h2 { font-size: 36px; font-weight: 800; margin-bottom: 10px; letter-spacing: -.5px; }
.promo-inner .promo-desc { font-size: 16px; color: rgba(255,255,255,.9); margin-bottom: 36px; }
.countdown-row { display: flex; justify-content: center; gap: 16px; margin-bottom: 36px; flex-wrap: wrap; }
.countdown-box { background: rgba(11,32,24,.55); backdrop-filter: blur(8px); border-radius: var(--radius-md); padding: 16px 20px; min-width: 90px; border: 1px solid rgba(255,255,255,.15); }
.countdown-box .cd-num { font-family: var(--font-num); font-size: 42px; font-weight: 800; line-height: 1; color: #fff; }
.countdown-box .cd-label { font-size: 12px; color: rgba(255,255,255,.8); margin-top: 6px; letter-spacing: 2px; text-transform: uppercase; }
.countdown-sep { font-family: var(--font-num); font-size: 32px; font-weight: 700; color: rgba(255,255,255,.55); align-self: flex-end; padding-bottom: 22px; }
.promo-btn { display: inline-flex; align-items: center; gap: 10px; height: 56px; padding: 0 42px; border-radius: var(--radius-pill); background: var(--dark); color: #fff; font-size: 16px; font-weight: 700; transition: all .25s; box-shadow: 0 8px 24px rgba(11,32,24,.35); }
.promo-btn:hover { background: var(--primary); transform: translateY(-3px); box-shadow: 0 14px 32px rgba(11,32,24,.4); }
.promo-btn:active { transform: translateY(0); }
.promo-btn:focus-visible { outline: 3px solid rgba(255,255,255,.5); outline-offset: 2px; }

/* 最新资讯 */
.news-section { background: var(--bg); }
.news-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; }
.news-header .section-title { text-align: left; }
.news-view-all { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 15px; font-weight: 600; transition: all .2s; }
.news-view-all:hover { gap: 10px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card { display: flex; gap: 24px; background: var(--white); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-card); transition: all .3s ease; align-items: center; border: 1px solid transparent; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(0,179,134,.25); }
.news-thumb { width: 140px; height: 90px; border-radius: var(--radius-md); overflow: hidden; flex-shrink: 0; background: #e8edeb; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-body { flex: 1; min-width: 0; }
.news-body h3 { font-size: 19px; font-weight: 700; color: var(--text); margin-bottom: 6px; transition: color .2s; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-card:hover .news-body h3 { color: var(--primary); }
.news-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 10px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-muted); }
.news-cat { background: rgba(0,179,134,.1); color: var(--primary); padding: 3px 12px; border-radius: var(--radius-pill); font-weight: 600; font-size: 12px; }
.news-more { margin-left: auto; color: var(--primary); font-weight: 600; font-size: 13px; opacity: 0; transition: opacity .3s; }
.news-card:hover .news-more { opacity: 1; }
.empty-state { background: var(--white); border: 2px dashed #dce5e1; border-radius: var(--radius-lg); padding: 50px 30px; text-align: center; color: var(--text-muted); font-size: 15px; box-shadow: var(--shadow-card); }

/* 咨询表单 */
.contact-section { background: var(--white); }
.contact-box { background: var(--bg); border-radius: var(--radius-lg); padding: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; box-shadow: var(--shadow-card); }
.contact-info h3 { font-size: 28px; font-weight: 800; color: var(--text); margin-bottom: 12px; }
.contact-info p { color: var(--text-muted); font-size: 15px; margin-bottom: 28px; line-height: 1.7; }
.contact-items { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; align-items: center; gap: 14px; padding: 14px 18px; background: var(--white); border-radius: var(--radius-md); box-shadow: var(--shadow-card); font-size: 14px; color: var(--text-body); }
.contact-item .c-icon { width: 34px; height: 34px; border-radius: 10px; background: var(--gradient-brand); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }
.contact-item span { font-weight: 600; color: var(--text); margin-right: 4px; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--text); }
.form-group label .red { color: var(--accent); }
.form-group input, .form-group textarea { height: 52px; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 0 18px; font-size: 15px; color: var(--text); background: #fff; transition: all .25s; outline: none; }
.form-group textarea { height: 120px; padding: 16px 18px; resize: none; line-height: 1.5; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,179,134,.12); }
.form-group input:hover, .form-group textarea:hover { border-color: #b8cdc5; }
.form-group input::placeholder, .form-group textarea::placeholder { color: #a3b3ac; }
.form-submit { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 4px; }
.form-submit .btn { min-width: 240px; }
.privacy-tip { font-size: 12px; color: var(--text-muted); }
.privacy-tip a { color: var(--primary); }

/* FAQ */
.faq-section { background: var(--bg); }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--white); border-radius: var(--radius-md); box-shadow: var(--shadow-card); overflow: hidden; transition: box-shadow .3s; }
.faq-item.active { box-shadow: var(--shadow-card); border: 1px solid rgba(0,179,134,.2); }
.faq-item.active .faq-q { color: var(--primary); }
.faq-q { display: flex; align-items: center; gap: 16px; padding: 20px 26px; font-size: 16px; font-weight: 700; color: var(--text); cursor: pointer; transition: color .2s; }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: rgba(0,179,134,.1); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; transition: all .3s; flex-shrink: 0; }
.faq-item.active .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s; padding: 0 26px 0 66px; font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.faq-item.active .faq-a { max-height: 300px; padding: 0 26px 22px 66px; }

/* 页脚 */
.site-footer { background: var(--dark); color: rgba(255,255,255,.72); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo-text { font-size: 24px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 16px; color: rgba(255,255,255,.55); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; letter-spacing: .3px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,.62); transition: all .2s; }
.footer-col a:hover { color: var(--primary-lighter); padding-left: 4px; }
.footer-contact-list { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: rgba(255,255,255,.62); line-height: 1.5; }
.footer-contact-item .f-icon { width: 30px; height: 30px; border-radius: 8px; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--primary-lighter); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: rgba(255,255,255,.42); }

/* 响应式 */
@media (max-width: 1023px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .plans-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-card.featured { grid-column: 1 / -1; order: -1; transform: none; }
  .plan-card.featured:hover { transform: translateY(-6px); }
  .contact-box { grid-template-columns: 1fr; padding: 36px; }
  .compare-table { display: block; overflow-x: auto; white-space: nowrap; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .section-title { font-size: 26px; }
  .container { padding: 0 16px; }
  .site-header { height: 64px; }
  .header-inner { height: 64px; gap: 12px; }
  .logo-text { font-size: 19px; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .countdown-pill { display: none; }
  .mobile-nav { top: 64px; }
  .btn-download { height: 38px; padding: 0 18px; font-size: 13px; }
  .hero { padding: 56px 0 56px; }
  .hero h1 { font-size: 36px; }
  .hero-desc { font-size: 16px; margin-bottom: 28px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero-btn { width: 100%; justify-content: center; height: 52px; font-size: 15px; }
  .hero-stats { gap: 16px; }
  .hero-stat .num { font-size: 26px; }
  .plans-grid { grid-template-columns: 1fr; }
  .plan-card.featured { grid-column: auto; order: 0; transform: scale(1.02); }
  .plan-card.featured:hover { transform: scale(1.02) translateY(-4px); }
  .compare-box { overflow-x: auto; }
  .compare-table { min-width: 700px; }
  .countdown-row { gap: 10px; }
  .countdown-box { min-width: 70px; padding: 12px 10px; }
  .countdown-box .cd-num { font-size: 30px; }
  .countdown-sep { display: none; }
  .promo-inner h2 { font-size: 28px; }
  .news-card { flex-direction: column; align-items: center; text-align: left; padding: 20px; gap: 14px; }
  .news-thumb { width: 100%; height: 90px; }
  .news-more { opacity: 1; }
  .contact-box { padding: 24px; gap: 32px; }
  .contact-items { grid-template-columns: 1fr; }
  .form-submit .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .news-header { flex-direction: column; gap: 8px; align-items: flex-start; }
  .faq-q { padding: 16px 18px; font-size: 15px; }
  .faq-a { padding: 0 18px 0 52px; }
  .faq-item.active .faq-a { padding: 0 18px 18px 52px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 30px; }
  .hero { padding: 44px 0; }
  .hero-stats { flex-wrap: wrap; }
  .hero-stat { width: 46%; }
  .plan-card { padding: 26px 20px; }
  .btn-download { padding: 0 14px; font-size: 12px; }
}

/* roulang page: article */
:root {
  --brand: #00B386;
  --brand-dark: #00997A;
  --brand-light: #00D2A8;
  --brand-soft: #E6F7F1;
  --accent: #FF6A00;
  --accent-light: #FF9A44;
  --accent-soft: #FFF2E8;
  --dark: #0B2018;
  --bg: #F4F8F6;
  --white: #FFFFFF;
  --text: #0B2018;
  --text-body: #2E3D37;
  --text-muted: #7A8B84;
  --border: #D6E4DF;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(11, 32, 24, 0.06);
  --shadow-lg: 0 12px 32px rgba(11, 32, 24, 0.12);
  --gradient-brand: linear-gradient(135deg, #00B386 0%, #00D2A8 60%, #45E0B0 100%);
  --gradient-accent: linear-gradient(90deg, #FF6A00 0%, #FF9A44 100%);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

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

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

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 32, 24, 0.97);
  backdrop-filter: blur(12px);
  height: 72px;
  box-shadow: 0 2px 20px rgba(11, 32, 24, 0.18);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: var(--white);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0, 179, 134, 0.4);
}

.logo-text {
  color: var(--white);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.25s ease;
  position: relative;
}

.main-nav a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

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

.main-nav a.active::after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  margin: 4px auto 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.countdown-pill {
  background: var(--white);
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 18px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

.btn-download {
  background: var(--gradient-brand);
  color: var(--white);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 28px;
  border-radius: 999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
  box-shadow: 0 6px 18px rgba(0, 179, 134, 0.35);
  white-space: nowrap;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 179, 134, 0.45);
}

.btn-download:active {
  transform: translateY(0);
  opacity: 0.9;
}

.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 22px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 28px 0 12px;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.breadcrumb span {
  color: var(--text);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Article Main ===== */
.article-main {
  padding: 0 0 80px;
}

.article-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-top: 20px;
  overflow: hidden;
}

.article-header {
  padding: 48px 56px 32px;
  background: linear-gradient(180deg, #F8FCFA 0%, #FFFFFF 100%);
  border-bottom: 1px solid #EEF3F0;
}

.article-header h1 {
  font-size: 38px;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: -0.5px;
  font-weight: 800;
  margin-bottom: 18px;
}

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

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.meta-item i {
  color: var(--brand);
  font-size: 13px;
}

.meta-category {
  display: inline-flex;
  align-items: center;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 600;
  font-size: 13px;
  padding: 4px 14px;
  border-radius: 999px;
}

.article-summary {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  background: #F9FBFA;
  border-left: 4px solid var(--brand);
  border-radius: 0 12px 12px 0;
  padding: 16px 20px;
  margin-top: 8px;
}

.article-content {
  padding: 48px 56px 24px;
  max-width: 860px;
  margin: 0 auto;
}

.article-content p {
  font-size: 16.5px;
  line-height: 1.9;
  margin-bottom: 24px;
  color: var(--text-body);
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 18px;
  line-height: 1.4;
  padding-left: 16px;
  border-left: 4px solid var(--brand);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 32px 0 14px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px 20px;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article-content blockquote {
  background: #F7FAF9;
  border-left: 4px solid var(--brand);
  border-radius: 0 12px 12px 0;
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.8;
}

.article-content img {
  border-radius: var(--radius-md);
  margin: 24px 0;
}

.article-content a {
  color: var(--brand);
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 179, 134, 0.35);
  transition: border-color 0.2s ease;
}

.article-content a:hover {
  border-bottom-color: var(--brand);
}

.article-footer {
  padding: 24px 56px 48px;
  max-width: 860px;
  margin: 0 auto;
  border-top: 1px solid #EEF3F0;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
  padding-top: 28px;
}

.tag {
  display: inline-flex;
  align-items: center;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  transition: background 0.25s ease, color 0.25s ease;
}

.tag:hover {
  background: var(--brand);
  color: var(--white);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.post-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-body);
  background: #F5F8F7;
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}

.post-nav-link:hover {
  background: var(--white);
  color: var(--brand);
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

/* ===== Related ===== */
.related-section {
  margin-top: 40px;
}

.related-section .section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
  position: relative;
  padding-bottom: 14px;
}

.related-section .section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 4px;
  border-radius: 4px;
  background: var(--gradient-brand);
}

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

.related-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.related-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #E9F1EE;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-thumb .thumb-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient-accent);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(255, 106, 0, 0.35);
}

.related-info {
  padding: 20px 22px 24px;
}

.related-info h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 51px;
}

.related-info h3 a:hover {
  color: var(--brand);
}

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

/* ===== CTA Panel ===== */
.cta-panel {
  margin-top: 80px;
  background: var(--gradient-accent);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-panel::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.cta-panel::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -30px;
  width: 220px;
  height: 220px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 2;
}

.cta-inner h2 {
  color: var(--white);
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
  margin-bottom: 28px;
}

.btn-accent {
  display: inline-block;
  background: var(--dark);
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 44px;
  border-radius: 999px;
  transition: all 0.25s ease;
  box-shadow: 0 8px 24px rgba(11, 32, 24, 0.25);
}

.btn-accent:hover {
  background: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(11, 32, 24, 0.35);
}

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

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  margin-top: 20px;
  box-shadow: var(--shadow-sm);
}

.empty-icon {
  font-size: 66px;
  margin-bottom: 18px;
  background: #F3F7F5;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

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

.btn-secondary {
  display: inline-block;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 999px;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: var(--brand);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  padding: 72px 0 0;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 800;
}

.footer-brand p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.8;
}

.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.footer-col a:hover {
  color: var(--brand-light);
  padding-left: 6px;
}

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.f-icon {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom span:first-child {
  margin-right: 16px;
}

/* ===== Focus Accessibility ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(0, 179, 134, 0.5);
  outline-offset: 2px;
}

input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(0, 179, 134, 0.3);
  outline-offset: 0;
}

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

  .main-nav a {
    padding: 8px 12px;
    font-size: 14px;
  }

  .countdown-pill {
    padding: 8px 14px;
    font-size: 13px;
  }

  .article-header {
    padding: 40px 32px 28px;
  }

  .article-content {
    padding: 40px 32px 20px;
  }

  .article-footer {
    padding: 20px 32px 40px;
  }

  .article-header h1 {
    font-size: 32px;
  }

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

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
    order: 2;
  }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 12px;
    position: relative;
  }

  .site-header {
    height: auto;
  }

  .logo {
    order: 1;
    margin-right: auto;
  }

  .header-actions {
    order: 2;
    gap: 10px;
  }

  .countdown-pill {
    display: none;
  }

  .header-actions .btn-download {
    font-size: 13px;
    padding: 10px 20px;
  }

  .main-nav {
    display: none;
    order: 4;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 32, 24, 0.98);
    border-radius: 16px;
    padding: 12px;
    margin: 4px 0 0;
  }

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

  .main-nav a {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
  }

  .main-nav a:last-child {
    border-bottom: none;
  }

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

  .main-nav a.active {
    background: rgba(0, 179, 134, 0.18);
  }

  .breadcrumb {
    padding: 20px 0 8px;
    font-size: 13px;
  }

  .breadcrumb span {
    max-width: 160px;
  }

  .article-header {
    padding: 28px 20px 20px;
  }

  .article-header h1 {
    font-size: 26px;
    line-height: 1.4;
  }

  .article-meta {
    gap: 12px;
    flex-wrap: wrap;
  }

  .article-summary {
    font-size: 14px;
    padding: 12px 16px;
  }

  .article-content {
    padding: 24px 20px 8px;
  }

  .article-content p {
    font-size: 15px;
    line-height: 1.85;
  }

  .article-content h2 {
    font-size: 20px;
  }

  .article-content h3 {
    font-size: 17px;
  }

  .article-footer {
    padding: 16px 20px 32px;
  }

  .post-nav {
    flex-direction: column;
    gap: 12px;
  }

  .post-nav-link {
    width: 100%;
    justify-content: center;
  }

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

  .cta-panel {
    padding: 40px 24px;
    margin-top: 48px;
  }

  .cta-inner h2 {
    font-size: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding: 20px 0;
  }
}

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

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .logo-text {
    font-size: 16px;
  }

  .btn-download {
    font-size: 12px;
    padding: 8px 16px;
  }

  .article-header h1 {
    font-size: 22px;
  }

  .article-summary {
    font-size: 13px;
  }

  .article-content {
    padding: 20px 16px 4px;
  }

  .article-footer {
    padding: 12px 16px 24px;
  }

  .related-info h3 {
    font-size: 16px;
  }

  .cta-inner p {
    font-size: 14px;
  }

  .btn-accent {
    padding: 12px 32px;
    font-size: 15px;
  }

  .empty-state {
    padding: 48px 20px;
  }
}

/* roulang page: category1 */
:root {
      --primary: #00B386;
      --primary-dark: #009975;
      --primary-light: #E6F7F1;
      --promo: #FF6A00;
      --promo-light: #FFF1E6;
      --dark: #0B2018;
      --dark-soft: #163528;
      --bg: #F4F8F6;
      --card: #FFFFFF;
      --text: #0B2018;
      --text-body: #2E3D37;
      --text-weak: #7A8B84;
      --border: #D6E4DF;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow-sm: 0 4px 16px rgba(11, 32, 24, 0.06);
      --shadow-md: 0 12px 32px rgba(11, 32, 24, 0.12);
      --gradient-brand: linear-gradient(135deg, #00B386 0%, #00D2A8 60%, #45E0B0 100%);
      --gradient-promo: linear-gradient(90deg, #FF6A00 0%, #FF9A44 100%);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
      --font-num: "DIN Alternate", "Bebas Neue", sans-serif;
      --container: 1200px;
      --space-section: 88px;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

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

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

    ul, ol {
      list-style: none;
    }

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

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

    /* ===== Header ===== */
    .site-header {
      background: var(--dark);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    }

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

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: var(--gradient-brand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 14px;
      letter-spacing: 0.5px;
      box-shadow: 0 4px 12px rgba(0, 179, 134, 0.35);
    }

    .logo-text {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.5px;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .main-nav a {
      color: rgba(255, 255, 255, 0.65);
      font-size: 15px;
      font-weight: 500;
      padding: 8px 2px;
      position: relative;
      transition: color 0.25s ease;
    }

    .main-nav a::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--primary);
      opacity: 0;
      transition: opacity 0.25s ease;
    }

    .main-nav a:hover {
      color: #fff;
    }

    .main-nav a.active {
      color: #fff;
      font-weight: 600;
    }

    .main-nav a.active::after {
      opacity: 1;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
    }

    .countdown-pill {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      color: var(--promo);
      font-weight: 600;
      font-size: 13px;
      padding: 8px 16px;
      border-radius: 999px;
      box-shadow: 0 2px 10px rgba(255, 255, 255, 0.08);
      white-space: nowrap;
    }

    .countdown-pill i {
      font-size: 13px;
    }

    .btn-download {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--gradient-brand);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 24px;
      border-radius: 999px;
      box-shadow: 0 4px 16px rgba(0, 179, 134, 0.3);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .btn-download:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 179, 134, 0.4);
    }

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

    .hamburger {
      display: none;
      background: transparent;
      cursor: pointer;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    /* ===== Page Banner ===== */
    .page-banner {
      position: relative;
      background: linear-gradient(120deg, var(--dark) 0%, #052e1f 55%, rgba(0, 179, 134, 0.85) 100%), url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      padding: 96px 0 80px;
      overflow: hidden;
    }

    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 32, 24, 0.6) 0%, rgba(11, 32, 24, 0.3) 100%);
    }

    .banner-content {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 48px;
    }

    .banner-left {
      max-width: 680px;
    }

    .banner-left h1 {
      font-size: 46px;
      color: #fff;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
    }

    .banner-left h1 span {
      color: #45E0B0;
    }

    .banner-desc {
      color: rgba(255, 255, 255, 0.85);
      font-size: 17px;
      line-height: 1.75;
      max-width: 600px;
      margin-bottom: 32px;
    }

    .banner-badges {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .badge-item {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      border-radius: 999px;
      padding: 10px 22px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .badge-item strong {
      font-family: var(--font-num);
      font-size: 22px;
      font-weight: 700;
      color: #45E0B0;
    }

    /* ===== Search Bar ===== */
    .search-section {
      margin-top: -40px;
      position: relative;
      z-index: 5;
    }

    .search-box {
      background: var(--card);
      border-radius: 24px;
      box-shadow: var(--shadow-md);
      padding: 16px;
      display: flex;
      align-items: center;
      gap: 12px;
      max-width: 800px;
      margin: 0 auto;
    }

    .search-box input {
      flex: 1;
      height: 52px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 0 20px;
      font-size: 15px;
      color: var(--text);
      background: var(--bg);
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .search-box input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 179, 134, 0.15);
      background: #fff;
    }

    .search-box input::placeholder {
      color: var(--text-weak);
    }

    .search-box button {
      height: 52px;
      padding: 0 36px;
      background: var(--gradient-brand);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      border-radius: var(--radius-md);
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      box-shadow: 0 4px 14px rgba(0, 179, 134, 0.25);
    }

    .search-box button:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 179, 134, 0.35);
    }

    .search-box button:active {
      transform: translateY(0);
    }

    /* ===== Resources Section ===== */
    .resources-section {
      padding: 96px 0 64px;
    }

    .section-head {
      text-align: center;
      margin-bottom: 56px;
    }

    .section-head .tag {
      display: inline-block;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 18px;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-head h2 {
      font-size: 36px;
      color: var(--text);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 8px;
    }

    .section-head p {
      color: var(--text-weak);
      font-size: 16px;
    }

    .resource-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .resource-card {
      display: flex;
      gap: 22px;
      background: var(--card);
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 2px solid transparent;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
      position: relative;
      overflow: visible;
    }

    .resource-card:hover {
      transform: translateY(-3px);
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .resource-card:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 179, 134, 0.15);
    }

    .resource-icon {
      width: 60px;
      height: 60px;
      border-radius: 18px;
      background: var(--gradient-brand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 24px;
      flex-shrink: 0;
      box-shadow: 0 6px 18px rgba(0, 179, 134, 0.25);
    }

    .resource-card:nth-child(even) .resource-icon {
      background: var(--gradient-promo);
      box-shadow: 0 6px 18px rgba(255, 106, 0, 0.2);
    }

    .resource-body {
      flex: 1;
    }

    .resource-body h3 {
      font-size: 20px;
      color: var(--text);
      font-weight: 700;
      margin-bottom: 10px;
    }

    .resource-desc {
      font-size: 14.5px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .resource-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      transition: gap 0.25s ease, color 0.25s ease;
    }

    .resource-link:hover {
      gap: 10px;
      color: var(--primary-dark);
    }

    .resource-link:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 4px;
      border-radius: 4px;
    }

    /* ===== Flow Section ===== */
    .flow-section {
      background: var(--dark);
      padding: 88px 0;
      position: relative;
      overflow: hidden;
    }

    .flow-section::before {
      content: '';
      position: absolute;
      right: -120px;
      top: -80px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(0, 179, 134, 0.12);
      filter: blur(60px);
    }

    .flow-header {
      text-align: center;
      margin-bottom: 56px;
      position: relative;
      z-index: 1;
    }

    .flow-header h2 {
      font-size: 34px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .flow-header p {
      color: rgba(255, 255, 255, 0.6);
      font-size: 16px;
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      position: relative;
      z-index: 1;
      counter-reset: step;
    }

    .flow-step {
      background: rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
      transition: background 0.3s ease, transform 0.3s ease;
    }

    .flow-step:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-4px);
    }

    .step-num {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #fff;
      font-weight: 800;
      font-size: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 6px 18px rgba(0, 179, 134, 0.3);
    }

    .flow-step h3 {
      color: #fff;
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .flow-step p {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      line-height: 1.7;
    }

    /* ===== CTA Banner ===== */
    .cta-banner {
      padding: 80px 0;
    }

    .cta-box {
      background: var(--gradient-promo);
      border-radius: 32px;
      padding: 56px 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 48px rgba(255, 106, 0, 0.2);
    }

    .cta-box::before {
      content: '';
      position: absolute;
      right: -40px;
      top: -40px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.12);
    }

    .cta-text {
      position: relative;
      z-index: 1;
    }

    .cta-text h2 {
      font-size: 30px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .cta-text p {
      color: rgba(255, 255, 255, 0.9);
      font-size: 15px;
    }

    .cta-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }

    .btn-primary-dark {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--dark);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      padding: 14px 32px;
      border-radius: 999px;
      transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
      box-shadow: 0 4px 16px rgba(11, 32, 24, 0.25);
    }

    .btn-primary-dark:hover {
      transform: translateY(-2px);
      background: #0d2b1f;
      box-shadow: 0 8px 24px rgba(11, 32, 24, 0.3);
    }

    .btn-ghost-light {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 2px solid rgba(255, 255, 255, 0.7);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 28px;
      border-radius: 999px;
      transition: all 0.25s ease;
    }

    .btn-ghost-light:hover {
      border-color: #fff;
      background: rgba(255, 255, 255, 0.1);
    }

    /* ===== FAQ Section ===== */
    .faq-section {
      padding: 40px 0 100px;
    }

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--card);
      border-radius: var(--radius-lg);
      margin-bottom: 16px;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: box-shadow 0.3s ease;
    }

    .faq-item:hover {
      box-shadow: var(--shadow-md);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 22px 28px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      background: transparent;
      width: 100%;
      text-align: left;
      transition: color 0.25s ease;
    }

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

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

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }

    .faq-answer-inner {
      padding: 0 28px 24px;
      font-size: 14.5px;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px solid var(--border);
      padding-top: 20px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      padding: 72px 0 32px;
      color: rgba(255, 255, 255, 0.65);
    }

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

    .footer-brand .logo {
      margin-bottom: 18px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-col ul li {
      margin-bottom: 12px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      transition: color 0.25s ease;
    }

    .footer-col ul a:hover {
      color: #45E0B0;
    }

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

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
    }

    .footer-contact-item .f-icon {
      font-size: 16px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-size: 13px;
      flex-wrap: wrap;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .main-nav {
        gap: 16px;
      }
      .countdown-pill {
        display: none;
      }
      .header-actions {
        gap: 10px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
      .banner-content {
        flex-direction: column;
      }
      .banner-left {
        max-width: 100%;
      }
      .banner-left h1 {
        font-size: 38px;
      }
      .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 48px 32px;
      }
      .cta-actions {
        flex-direction: column;
        width: 100%;
      }
      .btn-primary-dark, .btn-ghost-light {
        width: 100%;
        justify-content: center;
      }
    }

    @media (max-width: 768px) {
      :root {
        --space-section: 64px;
      }
      .container {
        padding: 0 16px;
      }
      .header-inner {
        height: 64px;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        border-top: 1px solid rgba(255, 255, 255, 0.06);
      }
      .main-nav.open {
        display: flex;
      }
      .main-nav a {
        width: 100%;
        padding: 14px 12px;
        border-radius: 12px;
      }
      .main-nav a:hover {
        background: rgba(255, 255, 255, 0.06);
      }
      .main-nav a.active::after {
        display: none;
      }
      .main-nav a.active {
        background: rgba(0, 179, 134, 0.12);
      }
      .hamburger {
        display: flex;
      }
      .logo-text {
        font-size: 17px;
      }
      .btn-download {
        padding: 8px 18px;
        font-size: 13px;
      }
      .banner-left h1 {
        font-size: 30px;
      }
      .banner-desc {
        font-size: 15px;
      }
      .page-banner {
        padding: 72px 0 64px;
      }
      .search-section {
        margin-top: -24px;
      }
      .search-box {
        flex-direction: column;
        padding: 12px;
      }
      .search-box input {
        width: 100%;
      }
      .search-box button {
        width: 100%;
        justify-content: center;
      }
      .resource-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .resource-card {
        padding: 24px;
      }
      .resource-icon {
        width: 52px;
        height: 52px;
        font-size: 20px;
        border-radius: 14px;
      }
      .section-head h2 {
        font-size: 28px;
      }
      .flow-steps {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .flow-step {
        padding: 28px 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .cta-box {
        padding: 40px 24px;
      }
      .cta-text h2 {
        font-size: 24px;
      }
      .faq-question {
        font-size: 15px;
        padding: 18px 20px;
      }
      .faq-answer-inner {
        padding: 0 20px 20px;
      }
    }

    @media (max-width: 520px) {
      .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 12px;
      }
      .logo-text {
        font-size: 15px;
      }
      .btn-download {
        padding: 8px 14px;
        font-size: 12px;
      }
      .banner-left h1 {
        font-size: 26px;
      }
      .banner-badges {
        gap: 10px;
      }
      .badge-item {
        padding: 8px 16px;
        font-size: 12px;
      }
      .badge-item strong {
        font-size: 18px;
      }
      .section-head p {
        font-size: 14px;
      }
      .resource-card {
        flex-direction: column;
        gap: 16px;
      }
      .resource-icon {
        width: 48px;
        height: 48px;
      }
      .resource-body h3 {
        font-size: 18px;
      }
      .cta-text p {
        font-size: 14px;
      }
    }

/* roulang page: category3 */
:root {
            --primary: #00B386;
            --primary-dark: #009A70;
            --primary-light: #E6F7F2;
            --accent: #FF6A00;
            --accent-light: #FFF3EC;
            --dark: #0B2018;
            --dark-soft: #123127;
            --bg: #F4F8F6;
            --card: #FFFFFF;
            --text: #0B2018;
            --text-body: #2E3D37;
            --text-muted: #7A8B84;
            --border: #D6E4DF;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 4px 16px rgba(11, 32, 24, 0.06);
            --shadow-hover: 0 12px 32px rgba(11, 32, 24, 0.12);
            --brand-gradient: linear-gradient(135deg, #00B386 0%, #00D2A8 60%, #45E0B0 100%);
            --promo-gradient: linear-gradient(90deg, #FF6A00 0%, #FF9A44 100%);
            --container: 1200px;
            --gap: 24px;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, 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);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 14px;
            letter-spacing: 1px;
            box-shadow: 0 4px 12px rgba(0, 179, 134, 0.35);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
        }

        .main-nav a {
            position: relative;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: #fff;
            font-weight: 600;
            background: rgba(0, 179, 134, 0.18);
        }

        .main-nav a.active::before {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 4px;
            transform: translateX(-50%);
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
        }

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

        .countdown-pill {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 8px 16px;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .countdown-pill .cd-icon {
            font-size: 15px;
        }

        .header-download-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 4px 14px rgba(0, 179, 134, 0.35);
            transition: all 0.25s ease;
        }

        .header-download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 179, 134, 0.45);
            color: #fff;
        }

        .header-download-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 179, 134, 0.3);
        }

        .burger {
            display: none;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            transition: background 0.2s;
        }

        .burger:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        /* ===== Event Hero ===== */
        .event-hero {
            position: relative;
            background: linear-gradient(135deg, var(--dark) 0%, #0E2B20 55%, #145340 100%);
            padding: 80px 0 70px;
            overflow: hidden;
        }

        .event-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }

        .event-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 32, 24, 0.92) 0%, rgba(11, 32, 24, 0.6) 60%, rgba(11, 32, 24, 0.3) 100%);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 680px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }

        .event-hero h1 {
            font-size: 50px;
            line-height: 1.2;
            color: #fff;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .event-hero h1 .highlight {
            background: var(--promo-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--promo-gradient);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 999px;
            box-shadow: 0 6px 20px rgba(255, 106, 0, 0.4);
            transition: all 0.25s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 106, 0, 0.5);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 106, 0, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 999px;
            transition: all 0.25s ease;
        }

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

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

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 8px;
        }

        .stat-badge {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 16px;
            padding: 12px 22px;
            backdrop-filter: blur(6px);
            transition: background 0.3s ease;
        }

        .stat-badge:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.3;
            max-width: 76px;
        }

        /* ===== Promo Strip ===== */
        .promo-strip {
            background: var(--promo-gradient);
            padding: 20px 0;
        }

        .promo-strip-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px 40px;
            color: #fff;
        }

        .promo-strip-text {
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .promo-strip-text .flame {
            font-size: 20px;
        }

        .promo-strip-deadline {
            font-size: 14px;
            opacity: 0.9;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .mini-cd {
            display: inline-flex;
            gap: 4px;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: 1px;
        }

        /* ===== Event Cards ===== */
        .event-cards-section {
            padding: 80px 0 40px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 44px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-head .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            margin-top: 6px;
            max-width: 480px;
        }

        .event-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .event-card {
            border-radius: var(--radius-lg);
            background: var(--card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(214, 228, 223, 0.4);
        }

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

        .event-card:nth-child(even) {
            background: #F0FAF6;
        }

        .event-card-img {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

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

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

        .event-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 32, 24, 0.35) 100%);
        }

        .event-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(255, 106, 0, 0.35);
        }

        .event-tag.green {
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(0, 179, 134, 0.3);
        }

        .event-card-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .event-card-body h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .event-card-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }

        .event-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 20px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .event-meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .event-meta-item .m-icon {
            font-size: 15px;
        }

        .participants {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
        }

        .event-card-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 999px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(0, 179, 134, 0.25);
            align-self: flex-start;
        }

        .event-card-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(0, 179, 134, 0.35);
            color: #fff;
        }

        .event-card-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 179, 134, 0.2);
        }

        /* ===== Highlights ===== */
        .highlights-section {
            padding: 80px 0;
            background: #fff;
            border-top: 1px solid rgba(214, 228, 223, 0.4);
            border-bottom: 1px solid rgba(214, 228, 223, 0.4);
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .highlight-card {
            border-radius: var(--radius-lg);
            background: var(--bg);
            border: 1px solid rgba(214, 228, 223, 0.6);
            padding: 32px 24px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .highlight-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .highlight-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin: 0 auto 18px;
            box-shadow: 0 6px 16px rgba(0, 179, 134, 0.25);
        }

        .highlight-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Steps ===== */
        .steps-section {
            padding: 80px 0;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            position: relative;
            border-radius: var(--radius-lg);
            background: var(--card);
            padding: 36px 24px 28px;
            box-shadow: var(--shadow-card);
            border-top: 4px solid var(--primary);
            counter-increment: step;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

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

        .step-card:nth-child(2) {
            border-top-color: var(--accent);
        }

        .step-card:nth-child(3) {
            border-top-color: #00A6B3;
        }

        .step-card:nth-child(4) {
            border-top-color: #8A5CF6;
        }

        .step-num {
            font-size: 44px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1px var(--primary);
            line-height: 1;
            margin-bottom: 14px;
            font-family: "DIN Alternate", "Bebas Neue", sans-serif;
        }

        .step-card:nth-child(2) .step-num {
            -webkit-text-stroke-color: var(--accent);
        }

        .step-card:nth-child(3) .step-num {
            -webkit-text-stroke-color: #00A6B3;
        }

        .step-card:nth-child(4) .step-num {
            -webkit-text-stroke-color: #8A5CF6;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Rules ===== */
        .rules-section {
            padding: 80px 0;
            background: #fff;
            border-top: 1px solid rgba(214, 228, 223, 0.4);
            border-bottom: 1px solid rgba(214, 228, 223, 0.4);
        }

        .rules-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 40px;
        }

        .rule-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(214, 228, 223, 0.5);
            align-items: flex-start;
        }

        .rule-num {
            flex-shrink: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .rule-item p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(214, 228, 223, 0.4);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-item.open {
            box-shadow: 0 8px 28px rgba(11, 32, 24, 0.08);
            border-color: var(--primary);
        }

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

        .faq-question .q-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            border-top: 0 solid rgba(214, 228, 223, 0.4);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            border-top-width: 1px;
            padding-top: 16px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* ===== CTA Banner ===== */
        .cta-section {
            padding: 0 0 80px;
        }

        .cta-banner {
            background: var(--promo-gradient);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-banner .container {
            position: relative;
            z-index: 1;
        }

        .cta-banner h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }

        .cta-banner .cta-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
        }

        .cta-banner .btn-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--dark);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 999px;
            box-shadow: 0 6px 20px rgba(11, 32, 24, 0.25);
            transition: all 0.25s ease;
        }

        .cta-banner .btn-dark:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 32, 24, 0.3);
            color: #fff;
        }

        .cta-banner .btn-dark:active {
            transform: translateY(0);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand .logo-icon {
            background: var(--brand-gradient);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 16px;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: grid;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .footer-contact-list {
            display: grid;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact-item .f-icon {
            font-size: 16px;
            width: 24px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav a {
                padding: 8px 12px;
                font-size: 14px;
            }
            .countdown-pill {
                display: none;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 8px;
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav a.active {
                background: rgba(0, 179, 134, 0.2);
            }
            .main-nav a.active::before {
                display: none;
            }
            .burger {
                display: flex;
            }
            .header-download-btn {
                padding: 9px 16px;
                font-size: 13px;
            }
            .logo-text {
                font-size: 17px;
            }
            .event-hero {
                padding: 56px 0 48px;
            }
            .event-hero h1 {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .rules-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-download-btn span {
                display: none;
            }
            .header-download-btn {
                width: 44px;
                height: 44px;
                padding: 0;
                border-radius: 12px;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .stat-badge {
                width: 100%;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .event-card-body {
                padding: 20px;
            }
            .event-card-img {
                height: 180px;
            }
            .section-head h2 {
                font-size: 27px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .promo-strip-inner {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #00B386;
  --primary-light: #00D2A8;
  --primary-soft: #E6F7F2;
  --accent: #FF6A00;
  --accent-light: #FF9A44;
  --accent-soft: #FFF3EA;
  --dark: #0B2018;
  --dark-2: #123529;
  --bg: #F4F8F6;
  --white: #FFFFFF;
  --text: #0B2018;
  --text-2: #2E3D37;
  --text-3: #7A8B84;
  --border: #D6E4DF;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 16px rgba(11,32,24,.06);
  --shadow-md: 0 12px 32px rgba(11,32,24,.12);
  --gradient-brand: linear-gradient(135deg,#00B386 0%,#00D2A8 60%,#45E0B0 100%);
  --gradient-accent: linear-gradient(90deg,#FF6A00 0%,#FF9A44 100%);
  --container: 1200px;
  --font-main: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num: "DIN Alternate","Bebas Neue",sans-serif;
}
*,*::before,*::after{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);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--primary-light)}
ul,ol{list-style:none}
button{font-family:var(--font-main);cursor:pointer;border:none;background:none}
input,textarea{font-family:var(--font-main)}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:80px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-block;
  padding:4px 14px;
  background:var(--primary-soft);
  color:var(--primary);
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:34px;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--text);
  line-height:1.3;
}
.section-head p{
  color:var(--text-3);
  font-size:15px;
  margin-top:10px;
}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;z-index:100;
  background:var(--dark);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:20px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-icon{
  width:38px;height:38px;
  background:var(--gradient-brand);
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:14px;
  font-weight:800;
  letter-spacing:-.5px;
}
.logo-text{
  font-size:20px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.5px;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  padding:8px 18px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  border-radius:var(--radius-pill);
  transition:all .25s ease;
  position:relative;
  white-space:nowrap;
}
.main-nav a:hover{
  color:#fff;
  background:rgba(255,255,255,.08);
}
.main-nav a.active{
  color:#fff;
  font-weight:600;
  background:rgba(0,179,134,.2);
}
.main-nav a.active::before{
  content:"";
  position:absolute;
  bottom:4px;left:50%;
  transform:translateX(-50%);
  width:5px;height:5px;
  border-radius:50%;
  background:var(--primary-light);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.countdown-pill{
  display:flex;
  align-items:center;
  gap:6px;
  background:#fff;
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  padding:6px 16px;
  border-radius:var(--radius-pill);
  box-shadow:0 2px 8px rgba(0,0,0,.2);
  white-space:nowrap;
}
.countdown-pill .pill-icon{
  font-size:14px;
}
.btn-download{
  padding:10px 24px;
  background:var(--gradient-brand);
  color:#fff;
  font-size:14px;
  font-weight:700;
  border-radius:var(--radius-pill);
  box-shadow:0 4px 14px rgba(0,179,134,.35);
  transition:all .3s ease;
  white-space:nowrap;
}
.btn-download:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(0,179,134,.45);
  color:#fff;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.08);
  border-radius:10px;
  transition:background .2s;
}
.nav-toggle span{
  width:20px;height:2px;
  background:#fff;
  border-radius:2px;
  transition:all .3s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:84px 0 64px;
  background:
    linear-gradient(135deg,rgba(11,32,24,.94) 0%,rgba(0,179,134,.82) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  top:0;right:0;
  width:500px;height:500px;
  background:radial-gradient(circle,rgba(0,210,168,.18) 0%,transparent 70%);
  pointer-events:none;
}
.hero-content{
  text-align:center;
  position:relative;
  z-index:2;
}
.hero h1{
  font-size:46px;
  font-weight:800;
  letter-spacing:-1px;
  line-height:1.3;
  margin-bottom:14px;
}
.hero .hero-highlight{
  background:var(--gradient-brand);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-desc{
  font-size:17px;
  color:rgba(255,255,255,.9);
  max-width:620px;
  margin:0 auto 30px;
}
.hero-search{
  max-width:560px;
  margin:0 auto 44px;
  display:flex;
  align-items:center;
  background:#fff;
  border-radius:var(--radius-pill);
  padding:5px;
  box-shadow:0 8px 30px rgba(0,0,0,.22);
}
.hero-search input{
  flex:1;
  border:none;
  background:transparent;
  padding:12px 20px;
  font-size:15px;
  color:var(--text);
  outline:none;
  min-width:0;
}
.hero-search input::placeholder{color:var(--text-3)}
.hero-search button{
  padding:11px 30px;
  background:var(--gradient-accent);
  color:#fff;
  font-size:15px;
  font-weight:700;
  border-radius:var(--radius-pill);
  transition:all .3s ease;
  white-space:nowrap;
}
.hero-search button:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(255,106,0,.4);
}
.hero-stats{
  display:flex;
  justify-content:center;
  gap:40px;
  flex-wrap:wrap;
}
.stat-item{
  text-align:center;
}
.stat-num{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:#fff;
}
.stat-num span{font-size:20px}
.stat-label{
  font-size:13px;
  color:rgba(255,255,255,.75);
  margin-top:4px;
}

/* ===== Benefits card matrix ===== */
.benefits-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.benefit-card{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  box-shadow:var(--shadow-sm);
  border:2px solid transparent;
  transition:all .3s ease;
  display:flex;
  flex-direction:column;
}
.benefit-card:hover{
  border-color:var(--primary);
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.benefit-card:active{
  transform:translateY(-1px) scale(.98);
}
.benefit-icon{
  width:52px;height:52px;
  background:var(--primary-soft);
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  margin-bottom:16px;
  transition:background .3s ease;
}
.benefit-card:hover .benefit-icon{
  background:var(--gradient-brand);
}
.benefit-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:8px;
  color:var(--text);
}
.benefit-card p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
  flex:1;
}
.benefit-card .card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  margin-top:16px;
  transition:gap .3s ease;
}
.benefit-card .card-link:hover{
  gap:10px;
  color:var(--primary-light);
}

/* ===== Level cards ===== */
.levels-section{
  background:var(--white);
}
.levels-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.level-card{
  background:var(--bg);
  border-radius:var(--radius-lg);
  padding:36px 30px;
  position:relative;
  border:2px solid transparent;
  transition:all .3s ease;
  display:flex;
  flex-direction:column;
}
.level-card:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.level-card.featured{
  background:linear-gradient(180deg,#fff 0%,#FFF7F0 100%);
  border-color:var(--accent);
  box-shadow:0 8px 32px rgba(255,106,0,.14);
  transform:scale(1.03);
}
.level-card.featured:hover{
  transform:scale(1.03) translateY(-4px);
}
.level-tag{
  position:absolute;
  top:-12px;right:20px;
  background:var(--gradient-accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:var(--radius-pill);
  letter-spacing:.5px;
}
.level-name{
  font-size:22px;
  font-weight:700;
  color:var(--text);
  margin-bottom:4px;
}
.level-desc{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.level-list li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  line-height:1.6;
}
.level-list li::before{
  content:"";flex-shrink:0;
  width:18px;height:18px;
  background:var(--primary-soft);
  border-radius:50%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300B386' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size:10px;
  background-position:center;
  background-repeat:no-repeat;
  margin-top:4px;
}
.level-card .level-cta{
  margin-top:auto;
  padding-top:20px;
}
.btn-level{
  display:block;
  text-align:center;
  width:100%;
  padding:12px 20px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:700;
  transition:all .3s ease;
  background:var(--primary-soft);
  color:var(--primary);
}
.btn-level:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-1px);
}
.level-card.featured .btn-level{
  background:var(--gradient-accent);
  color:#fff;
  box-shadow:0 4px 14px rgba(255,106,0,.3);
}
.level-card.featured .btn-level:hover{
  box-shadow:0 8px 20px rgba(255,106,0,.4);
  transform:translateY(-2px);
}

/* ===== Process ===== */
.process-section{
  background:var(--bg);
}
.process-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.process-image{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  position:relative;
}
.process-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:340px;
}
.process-image::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(11,32,24,.35));
}
.process-steps{
  display:flex;
  flex-direction:column;
  gap:20px;
}
.step-item{
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:var(--white);
  border-radius:var(--radius-md);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
  transition:all .3s ease;
}
.step-item:hover{
  box-shadow:var(--shadow-md);
  transform:translateX(4px);
}
.step-num{
  flex-shrink:0;
  width:40px;height:40px;
  background:var(--gradient-brand);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:16px;
  font-weight:800;
  font-family:var(--font-num);
}
.step-content h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:4px;
  color:var(--text);
}
.step-content p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--white);
}
.faq-list{
  max-width:780px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--border);
}
.faq-item:last-child{border-bottom:none}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0;
  cursor:pointer;
  transition:background .2s;
}
.faq-q:hover .faq-title{color:var(--primary)}
.faq-title{
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:color .2s;
  flex:1;
}
.faq-icon{
  flex-shrink:0;
  width:30px;height:30px;
  border-radius:50%;
  background:var(--primary-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  transition:all .3s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:all .3s ease;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.active .faq-icon{
  background:var(--primary);
}
.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after{
  background:#fff;
}
.faq-item.active .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-a p{
  padding:0 0 22px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}

/* ===== CTA ===== */
.cta-section{
  padding:56px 0;
}
.cta-banner{
  background:var(--gradient-accent);
  border-radius:var(--radius-lg);
  padding:48px 56px;
  text-align:center;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"";
  position:absolute;
  top:-60px;right:-60px;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-banner::after{
  content:"";
  position:absolute;
  bottom:-80px;left:-40px;
  width:180px;height:180px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-banner h2{
  font-size:32px;
  font-weight:800;
  margin-bottom:12px;
  position:relative;z-index:2;
}
.cta-banner p{
  font-size:16px;
  color:rgba(255,255,255,.95);
  margin-bottom:28px;
  position:relative;z-index:2;
}
.cta-buttons{
  display:flex;
  justify-content:center;
  gap:16px;
  position:relative;z-index:2;
  flex-wrap:wrap;
}
.btn-cta-dark{
  background:var(--dark);
  color:#fff;
  padding:13px 36px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  transition:all .3s ease;
  box-shadow:0 4px 16px rgba(0,0,0,.2);
}
.btn-cta-dark:hover{
  background:#1a4030;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(0,0,0,.25);
  color:#fff;
}
.btn-cta-outline{
  background:transparent;
  border:2px solid rgba(255,255,255,.7);
  color:#fff;
  padding:11px 32px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  transition:all .3s ease;
}
.btn-cta-outline:hover{
  background:rgba(255,255,255,.15);
  border-color:#fff;
  transform:translateY(-2px);
  color:#fff;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.8);
  padding-top:60px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo{
  margin-bottom:16px;
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  color:rgba(255,255,255,.6);
  font-size:14px;
  transition:color .25s;
}
.footer-col ul a:hover{
  color:var(--primary-light);
}
.footer-contact-list{
  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,.6);
}
.f-icon{
  font-size:16px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.4);
  flex-wrap:wrap;
}
.footer-bottom span{white-space:nowrap}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;
    background:var(--dark);
    flex-direction:column;
    align-items:flex-start;
    padding:16px 24px 24px;
    gap:4px;
    box-shadow:0 12px 32px rgba(0,0,0,.4);
    transform:translateY(-130%);
    opacity:0;
    visibility:hidden;
    transition:all .35s ease;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .main-nav a{
    width:100%;
    padding:12px 16px;
    font-size:16px;
  }
  .main-nav a.active::before{
    left:8px;
    transform:none;
  }
  .nav-toggle{display:flex}
  .countdown-pill .pill-text{display:none}
  .countdown-pill::after{content:"限时 3 天"}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
  .levels-grid{grid-template-columns:1fr}
  .level-card.featured{transform:none}
  .level-card.featured:hover{transform:translateY(-4px)}
  .process-wrap{grid-template-columns:1fr}
  .process-image img{min-height:260px}
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:26px}
  .logo-text{font-size:17px}
  .logo-icon{width:34px;height:34px;font-size:12px}
  .header-inner{height:64px}
  .main-nav{top:64px}
  .btn-download{padding:8px 18px;font-size:13px}
  .hero{padding:56px 0 48px}
  .hero h1{font-size:32px}
  .hero-desc{font-size:15px}
  .hero-search{
    flex-direction:column;
    background:transparent;
    box-shadow:none;
    gap:10px;
  }
  .hero-search input{
    width:100%;
    background:#fff;
    border-radius:var(--radius-pill);
    box-shadow:0 4px 16px rgba(0,0,0,.1);
  }
  .hero-search button{width:100%}
  .hero-stats{gap:24px}
  .stat-num{font-size:32px}
  .benefits-grid{grid-template-columns:1fr}
  .benefit-card{padding:22px 20px}
  .process-wrap{gap:32px}
  .process-image img{min-height:200px}
  .step-item{padding:18px}
  .cta-banner{padding:32px 20px}
  .cta-banner h2{font-size:24px}
  .cta-buttons{flex-direction:column;align-items:stretch}
  .btn-cta-dark,.btn-cta-outline{text-align:center;padding:12px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}
@media (min-width:768px) and (max-width:1023px){
  .hero h1{font-size:38px}
}