/* roulang page: index */
:root {
  --primary: #2d5a3d;
  --primary-dark: #1e3d29;
  --accent: #c9a86a;
  --accent-light: #f0e6d2;
  --bg-cream: #f8f6f2;
  --text-dark: #1d1d1f;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-cream);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
input, button { outline: none; }

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

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.6);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; letter-spacing: 0.02em; }
.nav-logo .logo-badge {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: #fff; border-radius: 10px;
  width: 36px; height: 36px; font-size: 0.95rem;
}
.nav-logo .logo-text { color: var(--primary); }
.nav-logo .logo-sub { color: var(--accent); font-weight: 600; font-size: 0.75rem; margin-left: 4px; letter-spacing: 0.05em; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); transition: color .2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-search {
  display: flex; align-items: center;
  background: #f3f4f6; border-radius: 999px;
  padding: 7px 14px 7px 16px; width: 220px;
  border: 1px solid transparent; transition: all .25s ease;
}
.nav-search:focus-within { background: #fff; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.15); }
.nav-search input { background: transparent; border: none; outline: none; font-size: 0.85rem; width: 100%; color: var(--text-dark); margin-left: 8px; }
.nav-search kbd { font-size: 10px; background: #fff; border-radius: 4px; padding: 2px 6px; color: #9ca3af; box-shadow: 0 1px 2px rgba(0,0,0,0.06); white-space: nowrap; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary); color: #fff;
  border-radius: 999px; padding: 8px 20px;
  font-size: 0.9rem; font-weight: 600;
  transition: all .25s ease; border: none; cursor: pointer;
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(45, 90, 61, 0.3); }
.nav-cta:active { transform: translateY(0); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; padding: 8px; }
.mobile-menu { display: none; background: #fff; border-top: 1px solid var(--border); padding: 16px 24px 24px; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: 12px 0; font-size: 1rem; font-weight: 500; color: var(--text-dark); border-bottom: 1px solid #f3f4f6; }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-search { display: flex; align-items: center; background: #f3f4f6; border-radius: 999px; padding: 8px 16px; margin-bottom: 12px; }
.mobile-search input { background: transparent; border: none; outline: none; font-size: 0.9rem; width: 100%; margin-left: 8px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 12px 26px; font-size: 0.95rem; font-weight: 600; transition: all .3s ease; border: none; cursor: pointer; line-height: 1.4; }
.btn:focus-visible { outline: 3px solid rgba(201, 168, 106, 0.4); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(45, 90, 61, 0.25); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(45, 90, 61, 0.35); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(45, 90, 61, 0.25); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary-dark); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15); }
.btn-light:hover { background: var(--accent-light); transform: translateY(-2px); }
.btn-lg { padding: 14px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

/* Badge */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em;
  color: var(--primary); background: rgba(45, 90, 61, 0.08);
  border-radius: 999px; padding: 6px 16px;
  text-transform: uppercase;
}
.badge-accent { color: var(--accent); background: rgba(201, 168, 106, 0.15); }
.badge-white { color: #fff; background: rgba(255, 255, 255, 0.15); }

/* Hero */
.hero {
  position: relative; padding: 120px 0 80px; overflow: hidden;
  background: linear-gradient(125deg, rgba(30, 61, 41, 0.92) 0%, rgba(45, 90, 61, 0.75) 50%, rgba(30, 61, 41, 0.6) 100%), url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
  color: #fff;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.hero-sub { font-size: 0.9rem; font-weight: 500; color: rgba(255, 255, 255, 0.85); margin-top: 16px; }
.hero-title { font-size: 2.6rem; line-height: 1.2; font-weight: 800; margin-top: 16px; letter-spacing: -0.02em; }
.hero-desc { font-size: 1.05rem; line-height: 1.8; color: rgba(255, 255, 255, 0.75); margin-top: 20px; max-width: 540px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-stats { display: flex; gap: 40px; margin-top: 40px; flex-wrap: wrap; }
.hero-stat { }
.hero-stat .num { font-size: 1.8rem; font-weight: 800; line-height: 1.2; }
.hero-stat .label { font-size: 0.85rem; color: rgba(255, 255, 255, 0.55); }

/* Crowdfunding Card */
.crowd-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
  color: var(--text-dark);
}
.crowd-head { display: flex; align-items: center; justify-content: space-between; }
.crowd-head h3 { font-size: 1.1rem; font-weight: 700; }
.crowd-head span { color: var(--accent); font-weight: 800; font-size: 1.2rem; }
.progress-wrap { position: relative; width: 160px; height: 160px; margin: 22px auto; }
.progress-wrap svg { width: 100%; height: auto; }
.progress-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.progress-center .pct { font-size: 2.2rem; font-weight: 800; }
.progress-center .lb { font-size: 0.8rem; color: var(--text-muted); }
.crowd-meta { text-align: center; font-size: 0.9rem; color: var(--text-muted); margin-top: 8px; }
.tier-list { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.tier-item {
  border: 1.5px solid var(--border);
  border-radius: 14px; padding: 12px 16px;
  transition: all .25s ease; cursor: pointer;
  background: #fff;
}
.tier-item:hover { border-color: var(--accent); box-shadow: 0 4px 12px rgba(201, 168, 106, 0.12); }
.tier-item.selected { border-color: var(--accent); background: rgba(201, 168, 106, 0.05); }
.tier-item .row { display: flex; align-items: center; justify-content: space-between; }
.tier-item .tier-name { font-weight: 700; font-size: 0.95rem; }
.tier-item .tier-price { color: var(--accent); font-weight: 700; }
.tier-item .tier-desc { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.crowd-btn-wrap { margin-top: 18px; }

/* Section Base */
.section { padding: 88px 0; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head h2 { font-size: 2.1rem; font-weight: 800; margin-top: 14px; letter-spacing: -0.01em; line-height: 1.25; }
.section-head p { font-size: 1rem; color: var(--text-muted); margin-top: 14px; line-height: 1.7; }

/* Live Cards */
.live-card {
  background: #fff; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: all .35s ease; border: 1px solid rgba(229, 231, 235, 0.5);
  height: 100%; display: flex; flex-direction: column;
}
.live-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.live-card .thumb { position: relative; height: 200px; overflow: hidden; }
.live-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.live-card:hover .thumb img { transform: scale(1.04); }
.live-badge {
  position: absolute; top: 14px; left: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(220, 38, 38, 0.9); color: #fff;
  font-size: 0.75rem; font-weight: 600; border-radius: 999px;
  padding: 4px 12px; backdrop-filter: blur(4px);
}
.live-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: #fff; animation: pulse-dot 1.5s infinite; }
.live-card .body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.live-card .date { font-size: 0.8rem; color: var(--text-muted); }
.live-card h3 { font-size: 1.05rem; font-weight: 700; margin-top: 6px; }
.live-card p { font-size: 0.88rem; color: var(--text-muted); margin-top: 8px; line-height: 1.6; }

/* Highlights */
.highlights-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: center; }
.highlight-visual {
  position: relative; border-radius: 24px; overflow: hidden;
  height: 400px; box-shadow: var(--shadow-lg);
}
.highlight-visual img { width: 100%; height: 100%; object-fit: cover; }
.highlight-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(30, 61, 41, 0.5), transparent 60%); }
.highlight-visual .caption { position: absolute; bottom: 20px; left: 20px; right: 20px; color: #fff; z-index: 2; }
.highlight-visual .caption h4 { font-size: 1.2rem; font-weight: 700; }
.highlight-visual .caption p { font-size: 0.85rem; opacity: 0.85; margin-top: 4px; }
.highlight-list { display: flex; flex-direction: column; gap: 16px; }
.highlight-item {
  display: flex; gap: 16px; background: #fff;
  border-radius: var(--radius); padding: 20px 22px;
  border: 1px solid rgba(229, 231, 235, 0.6);
  box-shadow: var(--shadow); transition: all .3s ease;
}
.highlight-item:hover { transform: translateX(5px); border-color: var(--accent); }
.highlight-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; color: var(--primary);
  background: rgba(45, 90, 61, 0.08);
}
.highlight-item h4 { font-size: 1rem; font-weight: 700; }
.highlight-item p { font-size: 0.87rem; color: var(--text-muted); margin-top: 4px; line-height: 1.6; }

/* Stats Dark */
.stats-section {
  background: linear-gradient(125deg, #1a2e22, #2d4a3a);
  color: #fff; position: relative; overflow: hidden;
}
.stats-section::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(201, 168, 106, 0.1); pointer-events: none;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
.stat-cell { text-align: center; padding: 24px 16px; border-radius: var(--radius); transition: background .3s ease; }
.stat-cell:hover { background: rgba(255, 255, 255, 0.05); }
.stat-cell .icon { font-size: 1.6rem; color: var(--accent); }
.stat-cell .num { font-size: 2.4rem; font-weight: 800; margin-top: 12px; line-height: 1.1; }
.stat-cell .label { font-size: 0.9rem; color: rgba(255, 255, 255, 0.55); margin-top: 6px; }

/* News */
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: flex; align-items: center; gap: 18px;
  padding: 18px 20px; border-radius: 14px;
  transition: all .25s ease; border-bottom: 1px solid rgba(229, 231, 235, 0.6);
  background: transparent;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: #fff; box-shadow: var(--shadow); }
.news-item .date { font-size: 0.85rem; color: var(--accent); font-weight: 600; flex-shrink: 0; width: 56px; }
.news-item .title { font-size: 0.98rem; font-weight: 500; flex: 1; line-height: 1.5; }
.news-item .arrow { color: #d1d5db; transition: all .25s ease; font-size: 0.9rem; }
.news-item:hover .arrow { color: var(--primary); transform: translateX(4px); }
.news-aside { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1px solid rgba(229, 231, 235, 0.5); }
.news-aside h3 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent-light); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.tag-chip {
  font-size: 0.8rem; font-weight: 500; color: var(--text-muted);
  background: #f3f4f6; border-radius: 999px; padding: 6px 14px;
  transition: all .2s ease; cursor: pointer;
}
.tag-chip:hover { background: var(--primary); color: #fff; }
.recommend-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid #f3f4f6; }
.recommend-item:last-child { border-bottom: none; }
.recommend-item .thumb { width: 68px; height: 52px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.recommend-item .txt { flex: 1; }
.recommend-item .txt h5 { font-size: 0.88rem; font-weight: 600; line-height: 1.4; }
.recommend-item .txt p { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* Subscribe */
.subscribe-section {
  position: relative; padding: 100px 0;
  background: linear-gradient(135deg, rgba(30, 61, 41, 0.9), rgba(45, 90, 61, 0.8)), url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
  color: #fff; overflow: hidden;
}
.subscribe-inner { max-width: 640px; margin: 0 auto; text-align: center; position: relative; z-index: 2; }
.subscribe-inner h2 { font-size: 2.2rem; font-weight: 800; margin-top: 16px; }
.subscribe-inner p { color: rgba(255, 255, 255, 0.75); margin-top: 16px; font-size: 1.02rem; line-height: 1.7; }
.subscribe-form { display: flex; gap: 10px; margin-top: 32px; }
.subscribe-form input {
  flex: 1; background: rgba(255, 255, 255, 0.95); border: none;
  border-radius: 999px; padding: 14px 24px; font-size: 0.95rem;
  color: var(--text-dark); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}
.subscribe-form input:focus { box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.4); }
.subscribe-form input::placeholder { color: #9ca3af; }
.subscribe-note { font-size: 0.78rem; color: rgba(255, 255, 255, 0.45); margin-top: 16px; }

/* FAQ */
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid rgba(229, 231, 235, 0.6);
  border-radius: var(--radius); margin-bottom: 14px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03); overflow: hidden;
  transition: all .3s ease;
}
.faq-item:hover { border-color: var(--accent); }
.faq-item.open { border-color: var(--accent); box-shadow: 0 6px 24px rgba(201, 168, 106, 0.12); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; cursor: pointer; font-weight: 600; font-size: 1rem;
  gap: 16px; user-select: none; transition: color .2s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-question i { color: var(--text-muted); transition: transform .3s ease; font-size: 0.9rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer p { padding: 0 24px 22px; font-size: 0.93rem; color: var(--text-muted); line-height: 1.8; }

/* Footer */
.site-footer {
  background: #15281d; color: rgba(255, 255, 255, 0.6);
  padding: 60px 0 0; font-size: 0.9rem;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand h3 { font-size: 1.15rem; font-weight: 700; color: #fff; }
.footer-brand h3 span { color: var(--accent); }
.footer-brand p { margin-top: 12px; line-height: 1.7; font-size: 0.87rem; }
.footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; padding: 6px 0; color: rgba(255, 255, 255, 0.55); transition: all .2s ease; font-size: 0.88rem; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact p { display: flex; align-items: center; gap: 10px; padding: 5px 0; font-size: 0.88rem; }
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0; text-align: center; font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

/* Animations */
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 120px 0 60px; }
  .highlights-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-search { display: none; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 0.98rem; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 1.6rem; }
  .subscribe-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats-section { padding: 64px 0; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.4rem; }
  .highlight-item { padding: 16px; }
  .news-item { gap: 12px; }
  .news-item .date { width: 44px; }
  .live-card .thumb { height: 170px; }
  .crowd-card { padding: 22px; }
  .progress-wrap { width: 130px; height: 130px; }
  .progress-center .pct { font-size: 1.7rem; }
  .footer-bottom { font-size: 0.75rem; }
}

@keyframes progress-anim { to { stroke-dashoffset: 104.55; } }