/* roulang page: index */
:root {
  --bg-base: #0A0F1E;
  --bg-alt: #111827;
  --bg-deep: #0D1428;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.08);
  --text-main: #F0F4FF;
  --text-sub: #9CA8C6;
  --text-weak: #6B7691;
  --accent: #FF6A2C;
  --accent-light: #FF8A50;
  --lime: #C7F636;
  --green: #3DF0B0;
  --cyan: #7BD8FF;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-btn: 0 0 30px rgba(255,106,44,0.35);
  --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
  --transition: 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { background: var(--bg-base); color: var(--text-main); font-family: var(--font-title); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
button, input { font-family: inherit; }
ul { list-style: none; }
::selection { background: rgba(255,106,44,0.3); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #0A0F1E; }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--accent), #E04A10); border-radius: 5px; border: 2px solid #0A0F1E; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.grid-container { max-width: 1280px; }
.grid-x.grid-margin-x > .cell { margin-bottom: 24px; }
.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-alt); border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.section-deep { background: var(--bg-deep); border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-title { font-size: clamp(28px, 3vw, 40px); font-weight: 800; line-height: 1.3; padding-left: 16px; border-left: 4px solid var(--accent); letter-spacing: 1px; }
.section-head.center .section-title { padding-left: 0; border-left: none; position: relative; }
.section-head.center .section-title::after { content: ''; display: block; width: 48px; height: 4px; background: linear-gradient(90deg, var(--accent), var(--lime)); border-radius: 4px; margin: 12px auto 0; }
.section-desc { color: var(--text-sub); margin-top: 12px; max-width: 560px; font-size: 15px; }
.section-head.center .section-desc { margin-left: auto; margin-right: auto; }
.section-more { color: var(--text-sub); font-size: 15px; font-weight: 500; display: inline-flex; align-items: center; gap: 8px; padding-bottom: 4px; border-bottom: 1px solid transparent; transition: all var(--transition); }
.section-more:hover { color: var(--accent); border-bottom-color: var(--accent); }
.stripe-divider { height: 8px; border: none; background: repeating-linear-gradient(45deg, rgba(255,106,44,0.35) 0 8px, transparent 8px 16px, rgba(199,246,54,0.25) 16px 24px, transparent 24px 32px); }

/* Header */
.site-header { position: fixed; top: 0; left: 0; right: 0; height: 64px; z-index: 100; background: rgba(10,15,30,0.7); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.06); transition: background 0.3s ease, border-color 0.3s ease; }
.site-header.scrolled { background: rgba(10,15,30,0.95); border-bottom-color: rgba(255,106,44,0.25); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), #E04A10); display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 18px; color: #fff; box-shadow: 0 4px 16px rgba(255,106,44,0.4); position: relative; flex-shrink: 0; }
.logo-mark::after { content: ''; position: absolute; width: 8px; height: 8px; background: var(--lime); border-radius: 50%; top: -2px; right: -2px; border: 2px solid #0A0F1E; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 18px; font-weight: 800; letter-spacing: 0.5px; color: var(--text-main); white-space: nowrap; }
.logo-text span { font-size: 11px; color: var(--text-weak); letter-spacing: 1px; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { position: relative; padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text-sub); border-radius: 8px; transition: all var(--transition); }
.nav-links a:hover { color: var(--text-main); background: rgba(255,255,255,0.05); }
.nav-links a.active { color: var(--text-main); font-weight: 600; }
.nav-links a.active::after { content: ''; position: absolute; left: 16px; right: 16px; bottom: -1px; height: 3px; background: var(--accent); border-radius: 3px 3px 0 0; }
.header-right { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; }
.search-box form { display: flex; align-items: center; }
.search-box input { width: 220px; height: 36px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-btn); padding: 0 36px 0 14px; color: var(--text-main); font-size: 14px; outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.search-box input::placeholder { color: var(--text-weak); }
.search-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(123,216,255,0.2); }
.search-box i { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--text-weak); font-size: 14px; pointer-events: none; }
.hamburger { display: none; width: 40px; height: 40px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-btn); align-items: center; justify-content: center; color: var(--text-main); cursor: pointer; font-size: 16px; transition: all var(--transition); }
.hamburger:hover { border-color: var(--accent); color: var(--accent); }
.mobile-menu { position: fixed; top: 64px; left: 0; right: 0; z-index: 99; background: rgba(10,15,30,0.98); border-bottom: 1px solid rgba(255,255,255,0.1); padding: 24px; backdrop-filter: blur(16px); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: all 0.3s ease; }
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
.mobile-nav { display: flex; flex-direction: column; gap: 8px; }
.mobile-nav a { padding: 12px 16px; border-radius: var(--radius-btn); color: var(--text-main); font-size: 16px; font-weight: 500; background: rgba(255,255,255,0.04); }
.mobile-nav a:hover { background: rgba(255,106,44,0.15); color: var(--accent); }
.mobile-search { margin-top: 16px; }
.mobile-search form { display: flex; gap: 10px; }
.mobile-search input { flex: 1; height: 42px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-btn); padding: 0 14px; color: var(--text-main); font-size: 14px; outline: none; }
.mobile-search input:focus { border-color: var(--cyan); }
.mobile-search .btn { height: 42px; }
.mobile-bottom-cta { display: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 24px; border-radius: var(--radius-btn); font-size: 15px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, #FF6A2C, #FF8A50); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { background: linear-gradient(135deg, #FF7A40, #FF9A64); color: #fff; box-shadow: 0 0 40px rgba(255,106,44,0.5); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 0 16px rgba(255,106,44,0.3); }
.btn-ghost { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.25); color: var(--text-main); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,106,44,0.08); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(1px); }
.btn-lg { height: 52px; padding: 0 32px; font-size: 16px; border-radius: 12px; }
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; border-radius: var(--radius-btn); }

/* Hero */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 72% 30%, rgba(255,106,44,0.10), transparent 52%), radial-gradient(circle at 18% 82%, rgba(199,246,54,0.06), transparent 42%); pointer-events: none; }
.hero::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 60px 60px; pointer-events: none; -webkit-mask-image: radial-gradient(circle at 70% 40%, black, transparent 72%); mask-image: radial-gradient(circle at 70% 40%, black, transparent 72%); }
.hero-grid { position: relative; z-index: 2; width: 100%; }
.hero-content { padding-right: 32px; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(199,246,54,0.10); border: 1px solid rgba(199,246,54,0.28); color: var(--lime); font-size: 12px; font-weight: 700; letter-spacing: 1px; padding: 6px 14px; border-radius: 20px; margin-bottom: 24px; }
.hero h1 { font-size: clamp(36px, 4.6vw, 64px); font-weight: 900; line-height: 1.2; letter-spacing: 1px; margin-bottom: 20px; color: var(--text-main); }
.hero-sub { font-size: 18px; color: var(--text-sub); line-height: 1.8; max-width: 480px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 24px; margin-top: 32px; flex-wrap: wrap; }
.point { display: inline-flex; align-items: center; gap: 8px; color: var(--text-sub); font-size: 14px; font-weight: 500; }
.point i { color: var(--lime); font-size: 14px; }
.hero-visual { position: relative; }
.hero-panel { position: relative; border-radius: 20px; overflow: hidden; border: 1px solid rgba(255,255,255,0.12); box-shadow: var(--shadow-card); background: var(--bg-alt); }
.hero-panel::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 8px, transparent 8px 16px); z-index: 1; pointer-events: none; }
.hero-panel::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,15,30,0.72), transparent 55%); z-index: 1; pointer-events: none; }
.hero-panel img { width: 100%; height: 480px; object-fit: cover; }
.data-card { position: absolute; z-index: 3; background: rgba(10,15,30,0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,0.12); border-radius: 16px; padding: 16px 20px; min-width: 150px; box-shadow: 0 8px 28px rgba(0,0,0,0.45); }
.data-value { display: block; font-family: var(--font-num); font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1.15; font-variant-numeric: tabular-nums; letter-spacing: 1px; }
.data-value.lime { color: var(--lime); }
.data-label { display: block; font-size: 13px; color: var(--text-sub); margin-top: 2px; }
.data-card-1 { top: 24px; left: -20px; }
.data-card-2 { bottom: 68px; right: -16px; }
.data-card-3 { bottom: -16px; left: 44px; }
.scroll-indicator { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-weak); font-size: 12px; letter-spacing: 2px; z-index: 3; transition: color var(--transition); }
.scroll-indicator:hover { color: var(--accent); }
.scroll-indicator .mouse { width: 22px; height: 36px; border: 2px solid currentColor; border-radius: 12px; position: relative; }
.scroll-indicator .mouse::after { content: ''; position: absolute; top: 6px; left: 50%; width: 3px; height: 6px; background: var(--accent); border-radius: 2px; transform: translateX(-50%); animation: scrollDot 1.6s ease infinite; }
@keyframes scrollDot { 0% { opacity: 1; top: 6px; } 100% { opacity: 0; top: 18px; } }

/* Cover Band */
.cover-band { position: relative; padding: 110px 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; overflow: hidden; }
.cover-band::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,15,30,0.94) 15%, rgba(10,15,30,0.68) 55%, rgba(10,15,30,0.42)); }
.cover-band::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, rgba(255,255,255,0.025) 0 10px, transparent 10px 20px); pointer-events: none; }
.cover-band .grid-container { position: relative; z-index: 2; }
.cover-band h2 { font-size: clamp(28px, 3.2vw, 42px); font-weight: 800; margin-bottom: 16px; letter-spacing: 1px; }
.cover-band p { color: var(--text-sub); max-width: 520px; margin-bottom: 22px; font-size: 15px; }
.cover-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag { display: inline-flex; align-items: center; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14); color: var(--text-main); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; }
.cover-link-wrap { display: flex; align-items: flex-end; justify-content: flex-end; }
.cover-link { display: inline-flex; align-items: center; gap: 10px; color: var(--lime); font-size: 15px; font-weight: 600; padding: 10px 20px; background: rgba(10,15,30,0.6); border: 1px solid rgba(199,246,54,0.3); border-radius: 12px; transition: all var(--transition); }
.cover-link:hover { background: rgba(199,246,54,0.12); color: var(--lime); border-color: var(--lime); transform: translateY(-2px); }

/* Directory */
.dir-card { display: block; position: relative; background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid var(--glass-border); border-radius: var(--radius-card); padding: 28px 24px; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); overflow: hidden; height: 100%; color: inherit; }
.dir-card:hover { transform: translateY(-4px); border-color: rgba(255,106,44,0.45); box-shadow: var(--shadow-hover); color: inherit; }
.dir-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent); transform: scaleY(0); transform-origin: bottom; transition: transform 0.3s ease; }
.dir-card:hover::before { transform: scaleY(1); }
.dir-num { display: block; font-family: var(--font-num); font-size: 46px; font-weight: 800; color: rgba(255,106,44,0.28); line-height: 1; margin-bottom: 18px; font-variant-numeric: tabular-nums; }
.dir-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; color: var(--text-main); }
.dir-card p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }
.dir-link { margin-top: 20px; color: var(--cyan); font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: color var(--transition); }
.dir-card:hover .dir-link { color: var(--accent); }

/* Featured */
.feat-card { background: var(--glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid var(--glass-border); border-radius: var(--radius-card); overflow: hidden; display: flex; height: 100%; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); }
.feat-card:hover { transform: translateY(-4px); border-color: rgba(255,106,44,0.45); box-shadow: var(--shadow-hover); }
.feat-thumb { width: 210px; flex-shrink: 0; position: relative; overflow: hidden; background: linear-gradient(135deg, #1A2332, #0D1428); }
.feat-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.feat-card:hover .feat-thumb img { transform: scale(1.04); }
.feat-badge { position: absolute; top: 12px; left: 12px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 20px; box-shadow: 0 4px 12px rgba(255,106,44,0.4); z-index: 2; }
.feat-body { padding: 24px; display: flex; flex-direction: column; min-width: 0; }
.feat-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.badge-lime { display: inline-flex; align-items: center; background: var(--lime); color: #111827; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 4px; white-space: nowrap; }
.feat-body h3 { font-size: 20px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--text-main); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.feat-body p { color: var(--text-sub); font-size: 14px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.feat-foot { margin-top: auto; padding-top: 14px; display: flex; gap: 16px; color: var(--text-weak); font-size: 13px; }

/* Related */
.rec-nav { display: flex; gap: 10px; }
.rec-btn { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16); color: var(--text-main); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: all var(--transition); font-size: 14px; }
.rec-btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(255,106,44,0.35); }
.rec-scroll { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
.rec-scroll::-webkit-scrollbar { display: none; }
.rec-card { flex: 0 0 224px; background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius-card); overflow: hidden; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition); display: block; }
.rec-card:hover { transform: translateY(-4px); border-color: rgba(199,246,54,0.4); box-shadow: var(--shadow-hover); }
.rec-thumb { height: 132px; overflow: hidden; position: relative; background: linear-gradient(135deg, #1A2332, #0D1428); }
.rec-thumb::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 8px, transparent 8px 16px); }
.rec-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.rec-card:hover .rec-thumb img { transform: scale(1.05); }
.rec-body { padding: 16px; }
.rec-body h4 { font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--text-main); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rec-heat { font-family: var(--font-num); font-size: 18px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }
.rec-heat span { font-family: var(--font-title); font-size: 12px; font-weight: 400; color: var(--text-weak); margin-left: 4px; }

/* CTA */
.cta-band { padding: 96px 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; position: relative; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: rgba(10,15,30,0.82); }
.cta-band::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 50% 50%, rgba(255,106,44,0.08), transparent 60%); pointer-events: none; }
.cta-panel { position: relative; z-index: 2; background: rgba(255,255,255,0.05); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(255,255,255,0.10); border-radius: 20px; padding: 64px 48px; text-align: center; overflow: hidden; }
.cta-panel h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; margin-bottom: 14px; letter-spacing: 1px; }
.cta-panel > p { color: var(--text-sub); max-width: 500px; margin: 0 auto 36px; font-size: 15px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-num { position: absolute; font-family: var(--font-num); font-size: 130px; font-weight: 800; color: rgba(255,255,255,0.045); line-height: 1; pointer-events: none; font-variant-numeric: tabular-nums; }
.cta-num-left { bottom: -32px; left: -16px; }
.cta-num-right { top: -30px; right: -16px; }
.social-proof { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 36px; color: var(--text-weak); font-size: 14px; }
.avatar-stack { display: flex; }
.avatar-stack span { width: 32px; height: 32px; border-radius: 50%; border: 2px solid rgba(10,15,30,0.9); margin-left: -10px; background: linear-gradient(135deg, var(--accent), var(--cyan)); }
.avatar-stack span:nth-child(2) { background: linear-gradient(135deg, var(--lime), var(--green)); }
.avatar-stack span:nth-child(3) { background: linear-gradient(135deg, #7BD8FF, #3D7BFF); }
.avatar-stack span:nth-child(4) { background: linear-gradient(135deg, #FF8A50, #FF6A2C); }
.avatar-stack span:first-child { margin-left: 0; }

/* News */
.news-list { border-top: 1px solid rgba(255,255,255,0.06); }
.news-row { display: flex; align-items: center; gap: 24px; padding: 26px 16px; border-bottom: 1px solid rgba(255,255,255,0.06); transition: background var(--transition); border-radius: 12px; }
.news-row:hover { background: rgba(255,255,255,0.03); }
.news-date { flex-shrink: 0; width: 96px; }
.news-date span { display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-num); font-size: 14px; font-weight: 700; color: var(--accent); background: rgba(255,106,44,0.12); border: 1px solid rgba(255,106,44,0.28); padding: 8px 14px; border-radius: 10px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.news-main { flex: 1; min-width: 0; }
.news-title-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.news-main h3 { font-size: 18px; font-weight: 600; }
.news-main h3 a { color: var(--text-main); transition: color var(--transition); }
.news-main h3 a:hover { color: var(--accent); }
.news-main p { color: var(--text-sub); font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-arrow { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.16); display: flex; align-items: center; justify-content: center; color: var(--text-sub); flex-shrink: 0; transition: all var(--transition); font-size: 14px; }
.news-row:hover .news-arrow { background: var(--accent); border-color: var(--accent); color: #fff; }
.empty-state { text-align: center; padding: 48px 24px; background: var(--glass); border: 1px dashed rgba(255,255,255,0.16); border-radius: var(--radius-card); color: var(--text-weak); }
.empty-state .empty-icon { font-size: 36px; color: var(--text-weak); margin-bottom: 12px; display: block; opacity: 0.6; }
.empty-state p { font-size: 15px; }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius-card); margin-bottom: 16px; overflow: hidden; transition: border-color var(--transition), background var(--transition); }
.faq-item.active { border-color: rgba(255,106,44,0.45); background: rgba(255,255,255,0.06); }
.faq-q { width: 100%; background: none; border: none; padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; color: var(--text-main); font-size: 16px; font-weight: 600; text-align: left; transition: color var(--transition); }
.faq-q:hover { color: var(--accent); }
.faq-q i { color: var(--accent); transition: transform 0.3s ease; font-size: 14px; flex-shrink: 0; }
.faq-item.active .faq-q i { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; color: var(--text-sub); font-size: 15px; }
.faq-a p { padding-bottom: 20px; }
.faq-item.active .faq-a { max-height: 320px; padding: 0 24px 0; }

/* Footer */
.site-footer { background: #080D18; border-top: 3px solid transparent; border-image: linear-gradient(90deg, var(--accent), var(--lime), transparent) 1; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo-text strong { font-size: 20px; }
.footer-desc { color: var(--text-sub); font-size: 14px; margin-top: 16px; max-width: 320px; line-height: 1.8; }
.footer-col h4 { color: var(--text-main); font-size: 16px; font-weight: 700; margin-bottom: 20px; letter-spacing: 1px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { color: var(--text-sub); font-size: 14px; transition: color var(--transition); }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--text-weak); font-size: 13px; }
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--accent); }

/* Toast */
.toast { position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%) translateY(16px); background: rgba(17,24,39,0.95); border: 1px solid rgba(199,246,54,0.4); color: var(--lime); padding: 14px 26px; border-radius: 12px; font-size: 14px; font-weight: 600; opacity: 0; visibility: hidden; transition: all 0.3s ease; z-index: 300; display: flex; align-items: center; gap: 10px; box-shadow: 0 8px 30px rgba(0,0,0,0.5); }
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast i { font-size: 16px; }

/* Responsive */
@media (max-width: 1024px) {
  .nav-links a { padding: 8px 11px; font-size: 14px; }
  .search-box input { width: 160px; }
  .hero-panel img { height: 400px; }
  .feat-thumb { width: 170px; }
  .data-card-1 { left: 0; top: 16px; }
  .data-card-2 { right: 0; bottom: 56px; }
  .data-card-3 { left: 16px; bottom: -14px; }
  .cta-num { font-size: 90px; }
  .cover-link-wrap { justify-content: flex-start; margin-top: 24px; }
}
@media (max-width: 768px) {
  .hamburger { display: inline-flex; }
  .nav-links, .search-box, .header-cta { display: none; }
  .mobile-bottom-cta { display: block; position: fixed; bottom: 0; left: 0; right: 0; z-index: 95; background: rgba(10,15,30,0.96); backdrop-filter: blur(12px); border-top: 1px solid rgba(255,255,255,0.08); padding: 12px 16px; }
  .mobile-bottom-cta .btn { width: 100%; }
  body { padding-bottom: 74px; }
  .section { padding: 64px 0; }
  .hero { min-height: auto; padding: 100px 0 64px; }
  .hero-content { padding-right: 0; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
  .hero-visual { margin-top: 42px; }
  .hero-panel img { height: 320px; }
  .data-card { min-width: 120px; padding: 12px 14px; }
  .data-value { font-size: 24px; }
  .data-card-2 { right: 4px; bottom: 44px; }
  .data-card-3 { left: 8px; bottom: -14px; }
  .scroll-indicator { display: none; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .cover-band { padding: 80px 0; }
  .feat-card { flex-direction: column; }
  .feat-thumb { width: 100%; height: 190px; }
  .feat-body h3 { font-size: 18px; }
  .rec-card { flex-basis: 200px; }
  .news-row { flex-wrap: wrap; gap: 12px; padding: 20px 12px; }
  .news-date { width: 100%; }
  .news-arrow { display: none; }
  .cta-panel { padding: 48px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-num { font-size: 70px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 29px; }
  .hero-actions .btn { width: 100%; }
  .hero-points { gap: 16px; }
  .point { font-size: 13px; }
  .rec-card { flex-basis: 170px; }
  .cta-actions .btn { width: 100%; }
  .faq-q { font-size: 15px; padding: 16px 18px; }
  .faq-item.active .faq-a { padding: 0 18px 0; }
  .footer-bottom { font-size: 12px; }
  .news-main p { white-space: normal; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
}

/* roulang page: category1 */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #111827;
  --bg-tertiary: #0D1428;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.08);
  --text-primary: #F0F4FF;
  --text-secondary: #9CA8C6;
  --text-muted: #6B7691;
  --accent-orange: #FF6A2C;
  --accent-orange-light: #FF8A50;
  --accent-lime: #C7F636;
  --accent-cyan: #7BD8FF;
  --success-green: #3DF0B0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.5);
  --glow-orange: 0 0 30px rgba(255,106,44,0.35);
  --transition: all 0.25s ease;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-orange); }
ul, ol { list-style-position: inside; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
  border-radius: 4px;
}
::selection { background: rgba(255,106,44,0.3); }
::-webkit-scrollbar { width: 10px; height: 10px; background: #0D1428; }
::-webkit-scrollbar-thumb { background: var(--accent-orange); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-orange-light); }
::-webkit-scrollbar-track { background: #0D1428; }

.grid-container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 44px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
  color: #fff;
  box-shadow: var(--glow-orange);
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 40px rgba(255,106,44,0.5);
  transform: translateY(-2px);
  color: #fff;
}
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-2px);
}
.btn-secondary:active { transform: translateY(0); }
.btn-lg { height: 52px; padding: 0 32px; line-height: 52px; font-size: 16px; border-radius: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,15,30,0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: 64px;
  transition: background 0.3s ease;
}
.site-header.scrolled {
  background: rgba(10,15,30,0.96);
}
.nav-container {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-shrink: 0;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  text-decoration: none;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0A0F1E, #1A2440);
  border: 1px solid rgba(255,106,44,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  color: var(--accent-lime);
  position: relative;
  flex-shrink: 0;
}
.logo-mark::after {
  content: "";
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 6px;
  height: 6px;
  background: var(--accent-orange);
  border-radius: 50%;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}
.logo-text span {
  font-size: 11px;
  color: var(--accent-lime);
  font-weight: 600;
  letter-spacing: 1px;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-links a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 2px;
  transition: var(--transition);
  letter-spacing: 0.2px;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--accent-orange);
  transition: width 0.25s ease;
}
.nav-links a:hover {
  color: var(--text-primary);
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-links a.active {
  color: var(--text-primary);
  font-weight: 700;
}
.nav-links a.active::after {
  width: 100%;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-search {
  position: relative;
}
.nav-search input {
  width: 220px;
  height: 36px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 0 14px 0 34px;
  color: var(--text-primary);
  font-size: 13px;
  transition: var(--transition);
  outline: none;
}
.nav-search input::placeholder { color: var(--text-muted); }
.nav-search input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(123,216,255,0.2);
}
.nav-search i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-muted);
  pointer-events: none;
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
}
.nav-toggle:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.category-hero {
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
  background-image: linear-gradient(rgba(10,15,30,0.65), rgba(10,15,30,0.85)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0, rgba(255,255,255,0.02) 8px, transparent 8px, transparent 16px);
  pointer-events: none;
}
.breadcrumb {
  position: relative;
  z-index: 2;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent-orange); }
.breadcrumb i { font-size: 10px; }
.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}
.hero-title { margin-bottom: 24px; }
.hero-title h1 {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  margin: 0;
}
.hero-title h1 span {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-lime);
  margin-top: 12px;
  letter-spacing: 2px;
}
.hero-side-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 360px;
  margin-left: auto;
  border-left: 3px solid var(--accent-orange);
  padding-left: 18px;
}
.hero-tags {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.tag-lime {
  display: inline-flex;
  align-items: center;
  background: var(--accent-lime);
  color: #1A2332;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.content-section {
  padding: 96px 0;
  position: relative;
}
.content-section:nth-of-type(even) {
  background: var(--bg-secondary);
}
.content-section:nth-of-type(odd) {
  background: var(--bg-primary);
}
.section-title-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 40px;
}
.section-title-bar {
  flex-shrink: 0;
  width: 4px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-orange), var(--accent-orange-light));
  border-radius: 4px;
  margin-top: 6px;
}
.section-title-block h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
}
.section-title-block p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.split-section .split-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 56px;
}
.split-section.reverse .split-inner {
  grid-template-columns: 0.8fr 1.2fr;
}
.split-section.reverse .split-media { order: 1; }
.split-section.reverse .split-copy { order: 2; }
.split-copy h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.45;
}
.split-copy p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}
.split-copy p:last-child { margin-bottom: 0; }
.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  position: relative;
  background: linear-gradient(135deg, #0D1428, #111827);
}
.split-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.split-media:hover img { transform: scale(1.03); }
.split-media .media-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(10,15,30,0.75);
  backdrop-filter: blur(8px);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.12);
}

.info-cards-section {
  background: var(--bg-tertiary) !important;
}
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.info-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  backdrop-filter: blur(14px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.info-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-orange);
  opacity: 0;
  transition: var(--transition);
}
.info-card:hover {
  border-color: rgba(255,106,44,0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.info-card:hover::before { opacity: 1; }
.info-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255,106,44,0.25), rgba(255,106,44,0.08));
  border: 1px solid rgba(255,106,44,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent-orange);
  margin-bottom: 20px;
}
.info-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.info-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
.info-card .data-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent-orange);
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 4px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.scenario-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.scenario-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-lime);
  box-shadow: var(--shadow-hover);
}
.scenario-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 800;
  color: rgba(255,106,44,0.25);
  position: absolute;
  top: 14px;
  right: 18px;
}
.scenario-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(199,246,54,0.1);
  border: 1px solid rgba(199,246,54,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-lime);
  font-size: 20px;
}
.scenario-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.scenario-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process-step {
  position: relative;
  padding: 32px 22px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.process-step:hover {
  border-color: var(--accent-orange);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 800;
  color: rgba(255,106,44,0.2);
  line-height: 1;
  display: block;
  margin-bottom: 14px;
}
.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
.process-arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  color: var(--accent-orange);
  font-size: 14px;
  z-index: 2;
}

.related-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-orange);
  box-shadow: var(--shadow-hover);
  color: inherit;
}
.related-card-img {
  height: 140px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.related-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,15,30,0.9));
}
.related-card-img .img-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--accent-lime);
  color: #1A2332;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
}
.related-card-body {
  padding: 22px 22px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  transition: var(--transition);
}
.related-card:hover .related-card-body h3 { color: var(--accent-orange); }
.related-card-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  margin: 0 0 12px;
}
.related-card-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--accent-orange);
  font-weight: 600;
}
.related-card-arrow i { transition: transform 0.25s; }
.related-card:hover .related-card-arrow i { transform: translateX(6px); }

.faq-section {
  background: var(--bg-secondary) !important;
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  cursor: pointer;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(255,106,44,0.3);
  background: rgba(255,255,255,0.07);
}
.faq-item summary {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--accent-orange);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item .faq-answer {
  padding-top: 14px;
  margin-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.cta-section {
  position: relative;
  padding: 96px 0;
  background-image: linear-gradient(rgba(10,15,30,0.85), rgba(10,15,30,0.92)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}
.cta-panel {
  max-width: 820px;
  margin: 0 auto;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.015) 0, rgba(255,255,255,0.015) 8px, transparent 8px, transparent 16px);
  pointer-events: none;
}
.cta-panel h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.cta-panel p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.site-footer {
  background: #080D18;
  border-top: 3px solid;
  border-image: linear-gradient(90deg, var(--accent-orange), var(--accent-lime), transparent) 1;
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand .footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 340px;
  margin-top: 16px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-col ul a:hover {
  color: var(--accent-orange);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 13px;
  color: var(--text-muted);
}

@media screen and (max-width: 1024px) {
  .nav-links { gap: 16px; }
  .nav-search { display: none; }
  .split-section .split-inner,
  .split-section.reverse .split-inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 20px; gap: 20px; }
  .process-arrow { display: none; }
}

@media screen and (max-width: 768px) {
  body { font-size: 15px; }
  .grid-container { padding: 0 20px; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10,15,30,0.98);
    backdrop-filter: blur(14px);
    padding: 24px 28px;
    gap: 18px;
    display: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 16px 32px rgba(0,0,0,0.5);
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-right .nav-search { display: none; }
  .nav-right .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-right { gap: 8px; }
  .logo-text strong { font-size: 14px; }
  .logo-text span { font-size: 10px; }

  .hero-title h1 { font-size: 38px; }
  .hero-title h1 span { font-size: 22px; }
  .hero-side-desc {
    margin-left: 0;
    margin-top: 24px;
    max-width: 100%;
  }
  .content-section { padding: 60px 0; }
  .section-title-block h2 { font-size: 26px; }

  .split-section .split-inner,
  .split-section.reverse .split-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .split-section.reverse .split-media { order: 0; }
  .split-section.reverse .split-copy { order: 1; }
  .split-media img { height: 220px; }

  .info-grid { grid-template-columns: 1fr; gap: 20px; }
  .scenario-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .related-cards { grid-template-columns: 1fr; gap: 20px; }
  .faq-item { padding: 18px 20px; }
  .faq-item summary { font-size: 15px; }
  .cta-panel { padding: 40px 24px; }
  .cta-panel h2 { font-size: 26px; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
}

@media screen and (max-width: 520px) {
  .grid-container { padding: 0 16px; }
  .hero-title h1 { font-size: 30px; }
  .hero-title h1 span { font-size: 18px; }
  .hero-tags { gap: 8px; }
  .content-section { padding: 48px 0; }
  .btn-lg { height: 48px; padding: 0 24px; line-height: 48px; font-size: 15px; }
  .cta-panel h2 { font-size: 22px; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
  .info-card { padding: 24px 20px; }
  .section-title-wrapper { gap: 10px; }
  .section-title-block h2 { font-size: 22px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #111827;
  --bg-tertiary: #0D1428;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.08);
  --text-primary: #F0F4FF;
  --text-secondary: #9CA8C6;
  --text-muted: #6B7691;
  --accent-orange: #FF6A2C;
  --accent-lime: #C7F636;
  --accent-cyan: #7BD8FF;
  --success: #3DF0B0;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.5);
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 85% 10%, rgba(255,106,44,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 90%, rgba(199,246,54,0.04) 0%, transparent 45%);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--accent-orange); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
ul, ol { list-style-position: inside; }
.container, .grid-container { max-width: 1280px; padding-left: 24px; padding-right: 24px; }
.grid-container { padding-left: 20px; padding-right: 20px; }

::selection { background: rgba(255,106,44,0.35); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-orange); border-radius: 5px; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: 64px;
  background: rgba(10,15,30,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(10,15,30,0.95); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.header-left { display: flex; align-items: center; gap: 24px; min-width: 0; }
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-orange), #FF8A50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 0 18px rgba(255,106,44,0.3);
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 16px; font-weight: 800; color: var(--text-primary); letter-spacing: 0.02em; white-space: nowrap; }
.logo-text span { font-size: 11px; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  display: block;
  padding: 8px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  position: relative;
  transition: color 0.22s ease, background 0.22s ease;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--accent-orange); background: rgba(255,106,44,0.06); }
.nav-links a.active { color: var(--text-primary); font-weight: 600; }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 1px;
  height: 3px;
  background: var(--accent-orange);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(255,106,44,0.5);
}
.header-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box { position: relative; }
.search-box input {
  width: 220px;
  height: 38px;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 0 40px 0 16px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box input:focus { border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(123,216,255,0.2); }
.search-box i { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; pointer-events: none; }
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 22px; padding: 6px 10px; border-radius: 6px; }

/* ===== Button ===== */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  line-height: 1;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), #FF8A50);
  color: #fff;
  box-shadow: 0 0 24px rgba(255,106,44,0.3);
}
.btn-primary:hover { background: linear-gradient(135deg, #FF7A3D, #FF9A65); color: #fff; transform: translateY(-2px); box-shadow: 0 0 32px rgba(255,106,44,0.45); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 16px rgba(255,106,44,0.3); }
.btn-primary:focus { outline: 3px solid rgba(255,106,44,0.4); outline-offset: 2px; }
.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: none;
}
.btn-ghost:hover { border-color: var(--accent-orange); color: var(--accent-orange); background: rgba(255,106,44,0.08); transform: translateY(-2px); }
.btn-ghost:focus { outline: 3px solid rgba(255,106,44,0.25); outline-offset: 2px; }
.btn-sm { height: 36px; padding: 0 18px; font-size: 13px; border-radius: 8px; }
.btn-lg { height: 52px; padding: 0 30px; font-size: 16px; border-radius: 12px; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  padding: 24px 0 8px;
}
.breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-orange); }
.breadcrumb i { font-size: 10px; color: var(--text-muted); }
.breadcrumb-current {
  color: var(--text-primary);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-block;
  vertical-align: bottom;
}

/* ===== Article 主体 ===== */
.article-wrap { padding: 16px 0 72px; }
.article-container { max-width: 780px; margin: 0 auto; }
.article-head { padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 32px; }
.article-title {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: var(--text-muted);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent-orange); font-size: 14px; }
.article-meta .meta-author { color: var(--text-secondary); font-weight: 500; }

/* ===== 正文排版 ===== */
.article-content { font-size: 17px; line-height: 1.85; color: var(--text-primary); }
.article-content > * { margin-bottom: 24px; }
.article-content p { margin-bottom: 24px; }
.article-content h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 40px 0 20px;
  padding-left: 16px;
  border-left: 4px solid var(--accent-orange);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--accent-lime);
  line-height: 1.4;
}
.article-content h4 { font-size: 18px; font-weight: 700; margin: 24px 0 12px; color: var(--text-primary); }
.article-content img {
  border-radius: 12px;
  width: 100%;
  border: 1px solid var(--glass-border);
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}
.article-content a { color: var(--accent-cyan); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(123,216,255,0.3); }
.article-content a:hover { color: var(--accent-orange); text-decoration-color: var(--accent-orange); }
.article-content blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--glass-bg);
  border-left: 4px solid var(--accent-orange);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
}
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 24px; }
.article-content ul { list-style: none; }
.article-content ul li { position: relative; padding-left: 22px; margin-bottom: 8px; }
.article-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  background: var(--accent-orange);
  border-radius: 2px;
  transform: rotate(45deg);
}
.article-content ol { list-style: none; counter-reset: article-ol; }
.article-content ol li {
  counter-increment: article-ol;
  position: relative;
  padding-left: 28px;
  margin-bottom: 8px;
}
.article-content ol li::before {
  content: counter(article-ol);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  background: rgba(255,106,44,0.15);
  color: var(--accent-orange);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
}
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; }
.article-content th,
.article-content td { padding: 12px 16px; text-align: left; border-bottom: 1px solid rgba(255,255,255,0.08); }
.article-content th { background: rgba(255,255,255,0.04); font-weight: 600; color: var(--text-primary); }
.article-content tr:hover td { background: rgba(255,255,255,0.02); }
.article-content code {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 14px;
  color: var(--accent-lime);
  font-family: "SF Mono", Consolas, monospace;
}
.article-content pre {
  background: #0b1626;
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 28px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-content pre code { background: none; padding: 0; color: var(--text-primary); }
.article-content hr { border: none; height: 1px; background: rgba(255,255,255,0.08); margin: 36px 0; }

/* ===== 标签区 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}
.tag-lime { background: var(--accent-lime); color: #101828; }
.tag-orange { background: var(--accent-orange); color: #fff; border-radius: 20px; }
.tag-glass { background: rgba(255,255,255,0.07); color: var(--text-secondary); border: 1px solid var(--glass-border); }

/* ===== 上一篇/下一篇 ===== */
.article-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}
.pager-btn {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--glass-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  backdrop-filter: blur(10px);
}
.pager-btn:hover {
  border-color: var(--accent-orange);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.pager-btn:hover strong { color: var(--accent-orange); }
.pager-label { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.pager-btn strong { font-size: 15px; font-weight: 600; color: var(--text-primary); transition: color 0.2s; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pager-btn.pager-next { text-align: right; }
.pager-btn.pager-next .pager-label { justify-content: flex-end; }

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 0;
  transition: color 0.2s;
}
.article-back:hover { color: var(--accent-orange); }
.article-back i { font-size: 13px; }

/* ===== 空状态 ===== */
.empty-state {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  padding: 64px 40px;
  text-align: center;
  margin: 32px 0 24px;
}
.empty-state i { font-size: 48px; color: var(--accent-orange); margin-bottom: 16px; opacity: 0.8; display: inline-block; }
.empty-state h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.empty-state p { color: var(--text-secondary); font-size: 15px; margin-bottom: 24px; }

/* ===== 相关推荐 ===== */
.related-section { padding: 72px 0 80px; background: var(--bg-tertiary); border-top: 1px solid rgba(255,255,255,0.06); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-lime);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-orange), rgba(255,106,44,0.1));
  border-radius: 2px;
}
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.section-more:hover { color: var(--accent-orange); border-bottom-color: var(--accent-orange); }
.related-card {
  display: block;
  height: 100%;
  background: var(--glass-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  backdrop-filter: blur(12px);
}
.related-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-orange);
}
.related-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.related-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,15,30,0.1) 0%, rgba(10,15,30,0.55) 100%);
}
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(16,24,40,0.85);
  color: var(--accent-lime);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(199,246,54,0.3);
  backdrop-filter: blur(8px);
}
.related-body { padding: 20px 24px 24px; }
.related-body h3 { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; line-height: 1.4; transition: color 0.2s; }
.related-card:hover .related-body h3 { color: var(--accent-orange); }
.related-body p { font-size: 14px; color: var(--text-secondary); margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--text-muted); }
.related-meta i { font-size: 13px; }
.related-meta .hot { color: var(--accent-orange); font-weight: 700; font-family: var(--font-num); }

/* ===== CTA ===== */
.article-cta { padding: 72px 0; background: var(--bg-primary); }
.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  padding: 44px 48px;
  background: var(--glass-bg);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-lime), transparent);
}
.cta-panel::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: repeating-linear-gradient(45deg, rgba(255,106,44,0.08) 0 8px, transparent 8px 16px);
  pointer-events: none;
}
.cta-info { position: relative; z-index: 1; }
.cta-info h3 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.cta-info p { font-size: 14px; color: var(--text-secondary); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: #080D18; border-top: 1px solid rgba(255,255,255,0.06); }
.site-footer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-lime), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 56px 0 40px;
}
.footer-brand .logo { margin-bottom: 18px; }
.footer-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; max-width: 360px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; letter-spacing: 0.05em; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 14px; color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--accent-orange); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .header-left { gap: 12px; }
  .nav-links a { padding: 8px 10px; font-size: 13px; }
  .search-box input { width: 180px; }
  .article-title { font-size: 38px; }
  .section-head h2 { font-size: 30px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(10,15,30,0.97);
    backdrop-filter: blur(16px);
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; font-size: 15px; }
  .nav-links a.active::after { display: none; }
  .nav-links a.active { background: rgba(255,106,44,0.12); border-radius: 8px; }
  .nav-toggle { display: inline-flex; }
  .search-box { display: none; }
  .header-inner { justify-content: space-between; }
  .article-title { font-size: 32px; }
  .article-content { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-top: 40px; }
  .cta-panel { padding: 32px 28px; flex-direction: column; align-items: flex-start; }
  .article-pager { grid-template-columns: 1fr; }
  .pager-btn.pager-next { text-align: left; }
  .pager-btn.pager-next .pager-label { justify-content: flex-start; }
  .section-head h2 { font-size: 26px; }
  .related-cover { aspect-ratio: 16 / 9; }
}

@media (max-width: 520px) {
  .logo-text span { display: none; }
  .logo-text strong { font-size: 14px; }
  .header-inner { gap: 8px; }
  .article-wrap { padding-bottom: 48px; }
  .breadcrumb-current { max-width: 160px; }
  .article-title { font-size: 26px; }
  .article-meta { gap: 10px; font-size: 12px; }
  .btn-primary, .btn-ghost { height: 40px; padding: 0 16px; font-size: 13px; }
  .btn-lg { height: 46px; padding: 0 20px; font-size: 14px; }
  .cta-panel { padding: 28px 20px; }
  .cta-info h3 { font-size: 20px; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

/* ===== 焦点可访问性 ===== */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(123,216,255,0.4);
  outline-offset: 2px;
}

/* roulang page: category3 */
:root {
  --bg-primary:#0A0F1E;
  --bg-secondary:#111827;
  --bg-tertiary:#0D1428;
  --glass-bg:rgba(255,255,255,0.05);
  --glass-bg-strong:rgba(255,255,255,0.07);
  --glass-border:rgba(255,255,255,0.08);
  --text-primary:#F0F4FF;
  --text-secondary:#9CA8C6;
  --text-muted:#6B7691;
  --accent-orange:#FF6A2C;
  --accent-lime:#C7F636;
  --accent-success:#3DF0B0;
  --link-default:#7BD8FF;
  --radius-card:16px;
  --radius-large:20px;
  --radius-btn:10px;
  --shadow-card:0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover:0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow:0 0 30px rgba(255,106,44,0.35);
  --transition:0.25s ease;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bebas Neue","Arial Narrow",sans-serif;
  --header-h:64px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-primary);
  background-color:var(--bg-primary);
  background-image:radial-gradient(ellipse at 20% 0%,rgba(123,216,255,0.04) 0%,transparent 60%);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--link-default);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-orange)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container, .grid-container{max-width:1280px;margin-inline:auto;padding-inline:24px}
.grid-container{width:100%}
.section{padding:96px 0}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:48px;gap:24px;flex-wrap:wrap}
.section-title{position:relative;font-size:36px;font-weight:800;line-height:1.3;color:var(--text-primary);padding-left:18px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--accent-orange),var(--accent-lime))}
.section-sub{font-size:15px;color:var(--text-secondary);max-width:560px;line-height:1.7}
.text-accent{color:var(--accent-orange)}
.text-lime{color:var(--accent-lime)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;height:var(--header-h);
  background:rgba(10,15,30,0.7);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background 0.3s ease;
}
.site-header.scrolled{background:rgba(10,15,30,0.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:16px}
.header-left{display:flex;align-items:center;gap:36px;min-width:0}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--accent-orange),#FF8A50);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:20px;color:#fff;
  box-shadow:0 0 20px rgba(255,106,44,0.4);flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:15px;font-weight:700;color:var(--text-primary);letter-spacing:0.5px}
.logo-text span{font-size:11px;color:var(--text-muted);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-secondary);
  padding:24px 0;transition:color 0.25s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:10px;height:3px;width:0;border-radius:4px;
  background:var(--accent-orange);transition:width 0.3s ease;
}
.nav-links a:hover{color:var(--text-primary)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--text-primary);font-weight:600}
.nav-links a.active::after{width:100%}
.header-right{display:flex;align-items:center;gap:16px}
.search-box{position:relative;width:220px}
.search-box input{
  width:100%;height:40px;border-radius:10px;border:1px solid var(--glass-border);
  background:rgba(0,0,0,0.3);color:var(--text-primary);padding:0 42px 0 16px;font-size:14px;
  transition:border-color 0.25s ease,box-shadow 0.25s ease;
}
.search-box input::placeholder{color:var(--text-muted)}
.search-box input:focus{
  outline:none;border-color:var(--link-default);box-shadow:0 0 0 3px rgba(123,216,255,0.2);
}
.search-box i{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:14px}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent-orange),#FF8A50);color:#fff;font-weight:600;font-size:14px;
  box-shadow:0 0 20px rgba(255,106,44,0.3);transition:all 0.25s ease;white-space:nowrap;
}
.header-cta:hover{color:#fff;box-shadow:0 0 30px rgba(255,106,44,0.5);transform:translateY(-1px)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-menu-btn span{display:block;width:22px;height:2px;border-radius:2px;background:var(--text-primary);transition:transform 0.3s ease,opacity 0.3s ease}
.mobile-menu-btn.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-menu-btn.is-active span:nth-child(2){opacity:0}
.mobile-menu-btn.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  display:none;background:rgba(10,15,30,0.98);border-top:1px solid rgba(255,255,255,0.06);
  padding:20px 24px 24px;border-radius:0 0 20px 20px;box-shadow:0 20px 40px rgba(0,0,0,0.5);
}
.mobile-menu.is-open{display:block}
.mobile-menu .mobile-search{position:relative;margin-bottom:16px}
.mobile-menu .mobile-search input{width:100%;height:42px;border-radius:10px;border:1px solid var(--glass-border);background:rgba(0,0,0,0.3);color:var(--text-primary);padding:0 42px 0 16px;font-size:14px}
.mobile-menu .mobile-search i{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-muted)}
.mobile-nav-links{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.mobile-nav-links a{display:block;padding:12px 14px;border-radius:10px;font-size:16px;color:var(--text-secondary);font-weight:500;transition:background 0.25s ease,color 0.25s ease}
.mobile-nav-links a:hover{background:rgba(255,255,255,0.05);color:var(--text-primary)}
.mobile-nav-links a.active{background:rgba(255,106,44,0.12);color:var(--accent-orange);font-weight:600}
.mobile-cta{display:flex;align-items:center;justify-content:center;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--accent-orange),#FF8A50);color:#fff;font-weight:600;font-size:15px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--radius-btn);padding:0 28px;height:48px;font-size:15px;cursor:pointer;transition:all 0.25s ease;border:none}
.btn i{font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--accent-orange),#FF8A50);color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{color:#fff;box-shadow:0 0 38px rgba(255,106,44,0.5);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:rgba(255,255,255,0.06);color:var(--text-primary);border:1px solid rgba(255,255,255,0.22);backdrop-filter:blur(8px)}
.btn-secondary:hover{border-color:var(--accent-orange);color:var(--accent-orange);background:rgba(255,106,44,0.06)}
.btn-secondary:active{transform:translateY(0)}
.btn-lg{height:52px;padding:0 36px;font-size:16px;border-radius:12px}
a.btn:focus,button.btn:focus{outline:2px solid var(--link-default);outline-offset:3px}

/* ===== Category Hero ===== */
.category-hero{
  position:relative;min-height:40vh;display:flex;align-items:center;overflow:hidden;
  background:linear-gradient(135deg,rgba(10,15,30,0.85),rgba(10,15,30,0.6)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.category-hero::before{
  content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,0.015) 0 8px,transparent 8px 16px);pointer-events:none;
}
.category-hero .hero-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:48px;padding:80px 0}
.hero-left{flex:0 0 55%;max-width:640px}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:30px;
  background:var(--accent-lime);color:#111;font-size:12px;font-weight:700;margin-bottom:20px;
}
.hero-badge i{font-size:12px}
.category-hero h1{font-size:52px;font-weight:900;line-height:1.2;color:var(--text-primary);margin-bottom:20px;letter-spacing:1px}
.category-hero h1 .highlight{background:linear-gradient(135deg,var(--accent-orange),#FFC740);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:17px;color:var(--text-secondary);line-height:1.8;max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-right{flex:0 0 40%;position:relative}
.hero-data-card{
  background:rgba(15,23,42,0.7);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,0.1);
  border-radius:20px;padding:28px 26px;box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.hero-data-card h4{font-size:15px;color:var(--text-secondary);margin-bottom:16px;font-weight:500}
.hero-stats{display:flex;gap:28px}
.hero-stat-item{flex:1}
.hero-stat-item .num{font-family:var(--font-num);font-size:36px;font-weight:700;color:var(--accent-orange);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-stat-item .label{font-size:12px;color:var(--text-muted);margin-top:4px}
.hero-data-card .update-info{display:flex;align-items:center;gap:6px;margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,0.08);font-size:13px;color:var(--text-muted)}
.update-info i{color:var(--accent-success)}

/* ===== Info Cards ===== */
.section-alt{background:var(--bg-secondary)}
.info-cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  background:var(--glass-bg);backdrop-filter:blur(14px);border:1px solid var(--glass-border);
  border-radius:var(--radius-card);padding:32px 28px;position:relative;overflow:hidden;
  transition:transform 0.25s ease,border-color 0.25s ease,box-shadow 0.25s ease;
}
.info-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent-orange),var(--accent-lime));opacity:0;transition:opacity 0.3s ease}
.info-card:hover{transform:translateY(-4px);border-color:rgba(255,106,44,0.35);box-shadow:var(--shadow-hover)}
.info-card:hover::before{opacity:1}
.info-card .card-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,106,44,0.12);color:var(--accent-orange);font-size:22px;margin-bottom:20px;
}
.info-card h3{font-size:20px;font-weight:700;margin-bottom:12px;color:var(--text-primary)}
.info-card p{font-size:14px;line-height:1.75;color:var(--text-secondary);margin-bottom:0}

/* ===== Image Text Blocks ===== */
.imgtext-grid{display:grid;grid-template-columns:6fr 4fr;gap:48px;align-items:center}
.imgtext-grid.reverse .imgtext-media{order:2}
.imgtext-media{
  position:relative;border-radius:var(--radius-large);overflow:hidden;
  border:1px solid var(--glass-border);box-shadow:var(--shadow-card);
}
.imgtext-media img{width:100%;height:380px;object-fit:cover;transition:transform 0.4s ease}
.imgtext-media:hover img{transform:scale(1.03)}
.imgtext-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(10,15,30,0.4))}
.imgtext-content h3{font-size:26px;font-weight:800;color:var(--text-primary);margin-bottom:18px;line-height:1.4}
.imgtext-content h3 span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--accent-orange);color:#fff;font-size:16px;margin-right:10px;vertical-align:top}
.imgtext-content p{font-size:15px;color:var(--text-secondary);line-height:1.9;margin-bottom:16px}
.imgtext-content ul{margin-top:16px;display:grid;gap:10px}
.imgtext-content ul li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-secondary)}
.imgtext-content ul li i{color:var(--accent-lime);font-size:14px;flex-shrink:0}

/* ===== Workflow ===== */
.workflow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.workflow-step{
  position:relative;background:rgba(255,255,255,0.04);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.07);border-radius:var(--radius-card);padding:30px 24px;
  transition:transform 0.25s ease,border-color 0.25s ease;
}
.workflow-step:hover{transform:translateY(-4px);border-color:rgba(255,106,44,0.3)}
.workflow-step .step-num{
  font-family:var(--font-num);font-size:48px;font-weight:800;color:rgba(255,106,44,0.25);
  line-height:1;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.workflow-step h3{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:8px}
.workflow-step p{font-size:13px;color:var(--text-muted);line-height:1.6;margin:0}
.workflow-step::after{
  content:"\F138";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;top:50%;right:-18px;transform:translateY(-50%);
  color:rgba(255,106,44,0.6);font-size:16px;z-index:2;
}
.workflow-step:last-child::after{display:none}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  border:1px solid rgba(255,255,255,0.07);border-radius:var(--radius-card);background:rgba(255,255,255,0.03);
  margin-bottom:14px;overflow:hidden;transition:border-color 0.3s ease,background 0.3s ease;
}
.faq-item:last-child{margin-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--text-primary);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent-orange)}
.faq-item summary .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:rgba(255,106,44,0.12);color:var(--accent-orange);display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform 0.3s ease}
.faq-item[open] summary .faq-icon{transform:rotate(45deg)}
.faq-item[open]{border-color:rgba(255,106,44,0.25);background:rgba(255,106,44,0.03)}
.faq-answer{padding:0 24px 22px;color:var(--text-secondary);font-size:14px;line-height:1.8}

/* ===== CTA ===== */
.cta-section{padding:80px 0}
.cta-panel{
  position:relative;background:rgba(15,23,42,0.6);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius-large);padding:64px 48px;
  text-align:center;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,0.4);
}
.cta-panel::before{
  content:"";position:absolute;top:-60%;left:-20%;width:120%;height:160%;
  background:radial-gradient(circle,rgba(255,106,44,0.08) 0%,transparent 60%);pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,0.012) 0 8px,transparent 8px 16px);pointer-events:none;
}
.cta-panel h2{font-size:34px;font-weight:900;margin-bottom:14px;position:relative;z-index:2}
.cta-panel p{font-size:16px;color:var(--text-secondary);margin-bottom:32px;max-width:520px;margin-inline:auto;position:relative;z-index:2}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;position:relative;z-index:2}
.cta-stats{
  display:flex;justify-content:center;gap:48px;margin-top:40px;position:relative;z-index:2;flex-wrap:wrap;
}
.cta-stats .cta-stat{text-align:center}
.cta-stats .cta-stat .num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--accent-orange);line-height:1.2}
.cta-stats .cta-stat .label{font-size:12px;color:var(--text-muted);margin-top:4px}

/* ===== Footer ===== */
.site-footer{background:#080D18;border-top:3px solid;border-image:linear-gradient(90deg,var(--accent-orange),var(--accent-lime),transparent) 1;padding:64px 0 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:340px;margin-top:16px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:20px;letter-spacing:0.5px}
.footer-col ul{display:grid;gap:12px}
.footer-col ul a{font-size:14px;color:var(--text-secondary);transition:color 0.25s ease,padding-left 0.25s ease}
.footer-col ul a:hover{color:var(--accent-orange);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);padding:20px 0;display:flex;justify-content:center;gap:28px;
  font-size:13px;color:var(--text-muted);flex-wrap:wrap;
}

/* ===== Mobile responsive ===== */
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .search-box{display:none}
  .header-cta{display:none}
  .mobile-menu-btn{display:flex}
  .category-hero .hero-inner{flex-direction:column;padding:60px 0}
  .hero-left{flex:0 0 100%;max-width:100%}
  .hero-right{flex:0 0 100%;max-width:100%}
  .category-hero h1{font-size:40px}
  .imgtext-grid{grid-template-columns:1fr;gap:32px}
  .imgtext-grid.reverse .imgtext-media{order:0}
  .imgtext-media img{height:300px}
  .workflow-wrap{grid-template-columns:repeat(2,1fr)}
  .workflow-step::after{display:none}
  .info-cards-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .section{padding:64px 0}
  .section-title{font-size:28px}
  .category-hero{min-height:auto}
  .category-hero h1{font-size:32px}
  .hero-desc{font-size:15px}
  .hero-stats{flex-direction:column;gap:16px}
  .hero-stat-item{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,0.06);padding-bottom:12px}
  .hero-stat-item:last-child{border-bottom:none;padding-bottom:0}
  .hero-stat-item .num{font-size:28px}
  .workflow-wrap{grid-template-columns:1fr}
  .info-cards-grid{grid-template-columns:1fr}
  .cta-panel{padding:48px 24px}
  .cta-panel h2{font-size:26px}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:6px;text-align:center}
  .imgtext-media img{height:220px}
  .section-header{flex-direction:column;align-items:flex-start}
  .mobile-menu-btn{display:flex}
}
/* 1024 */
@media screen and (min-width:1024px) and (max-width:1200px){
  .nav-links{gap:18px}
  .nav-links a{font-size:14px}
  .search-box{width:180px}
}

/* roulang page: category2 */
/* ============ Design Tokens ============ */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #111827;
  --bg-tertiary: #0D1428;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-bg-strong: rgba(255,255,255,0.07);
  --glass-border: rgba(255,255,255,0.08);
  --text-primary: #F0F4FF;
  --text-secondary: #9CA8C6;
  --text-muted: #6B7691;
  --accent-orange: #FF6A2C;
  --accent-orange-light: #FF8A50;
  --accent-lime: #C7F636;
  --accent-cyan: #7BD8FF;
  --success-green: #3DF0B0;
  --radius-sm: 8px;
  --radius-card: 16px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-cta: 0 0 30px rgba(255,106,44,0.35);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
  --header-h: 64px;
  --section-space: 96px;
  --transition: 0.25s ease;
}
/* ============ Reset & Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-orange); }
ul, ol { list-style: none; }
button { font-family: var(--font-cn); cursor: pointer; }
input { font-family: var(--font-cn); }
h1, h2, h3, h4 { color: var(--text-primary); font-weight: 800; line-height: 1.3; }
::selection { background: rgba(255,106,44,0.35); }
::-webkit-scrollbar { width: 8px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-orange); border-radius: 4px; }
/* ============ Typography ============ */
h1 { font-size: 44px; letter-spacing: 0.5px; }
h2 { font-size: 34px; }
h3 { font-size: 22px; }
.section-head { margin-bottom: 44px; position: relative; padding-left: 18px; }
.section-head::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 4px; border-radius: 2px;
  background: linear-gradient(180deg, var(--accent-orange), var(--accent-lime));
}
.section-head.center { text-align: center; padding-left: 0; }
.section-head.center::before { display: none; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--text-secondary); font-size: 16px; max-width: 640px; }
.section-head.center p { margin: 0 auto; }
/* ============ Layout / Section ============ */
.section { padding: var(--section-space) 0; }
.section-alt { background: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%); }
.section-line { border-top: 1px solid rgba(255,255,255,0.06); }
/* ============ Header / Nav ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(10,15,30,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(10,15,30,0.95);
  box-shadow: 0 4px 24px rgba(0,0,0,0.45);
}
.nav-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: relative;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent-orange), #FF3D1A);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 900; color: #fff;
  box-shadow: 0 0 18px rgba(255,106,44,0.35);
  position: relative;
}
.logo-mark::after {
  content: "";
  position: absolute;
  top: 3px; right: 3px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-lime);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 15px; color: var(--text-primary); letter-spacing: 0.3px; white-space: nowrap; }
.logo-text span { font-size: 11px; color: var(--text-muted); letter-spacing: 1px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.nav-links a {
  position: relative;
  color: var(--text-secondary);
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--text-primary); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent-orange);
  box-shadow: 0 0 10px rgba(255,106,44,0.5);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 220px;
  height: 38px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 0 36px 0 14px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(123,216,255,0.2);
}
.search-box i {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 17px;
  align-items: center;
  justify-content: center;
}
.nav-mobile-extra { display: none; }
/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}
.btn:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
  color: #fff !important;
  box-shadow: 0 4px 18px rgba(255,106,44,0.35);
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 30px rgba(255,106,44,0.5);
  transform: translateY(-1px);
  color: #fff !important;
}
.btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 10px rgba(255,106,44,0.3); }
.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text-primary) !important;
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange) !important;
  transform: translateY(-1px);
}
.btn-ghost:active { transform: translateY(1px); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 13px; border-radius: var(--radius-pill); }
.btn-lg { height: 52px; padding: 0 30px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }
/* ============ Badges / Tags ============ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.tag-lime { background: var(--accent-lime); color: #000; }
.tag-orange { background: var(--accent-orange); color: #fff; border-radius: 20px; padding: 4px 14px; }
.tag-glass {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  border-radius: 20px;
  padding: 5px 14px;
  font-weight: 500;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  background: rgba(199,246,54,0.12);
  border: 1px solid rgba(199,246,54,0.3);
  color: var(--accent-lime);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-lime);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
/* ============ Category Hero ============ */
.cat-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 60px;
  background:
    linear-gradient(120deg, rgba(10,15,30,0.92) 20%, rgba(13,20,40,0.72) 60%, rgba(13,20,40,0.55)),
    repeating-linear-gradient(45deg, transparent 0, transparent 14px, rgba(255,255,255,0.02) 14px, rgba(255,255,255,0.02) 16px),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  right: -180px; top: -180px;
  width: 460px; height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,106,44,0.14) 0%, transparent 70%);
  pointer-events: none;
}
.cat-hero h1 {
  font-size: 52px;
  line-height: 1.16;
  margin-bottom: 16px;
  position: relative;
}
.cat-hero h1 .accent {
  color: var(--accent-orange);
  position: relative;
}
.cat-hero h1 .accent::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 8px;
  background: repeating-linear-gradient(45deg, rgba(255,106,44,0.3) 0, rgba(255,106,44,0.3) 6px, transparent 6px, transparent 12px);
  z-index: -1;
}
.hero-sub {
  color: var(--text-secondary);
  font-size: 18px;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-data-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 28px 24px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.hero-data-panel::before {
  content: "";
  position: absolute;
  top: 0; left: 20px; right: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
}
.data-item {
  display: flex;
  flex-direction: column;
  padding: 10px 14px;
  background: rgba(0,0,0,0.22);
  border-radius: 12px;
  border-left: 3px solid var(--accent-orange);
}
.data-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-orange);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.data-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.hero-stripe {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--accent-orange) 0%, var(--accent-lime) 45%, transparent 100%);
  opacity: 0.6;
}
/* ============ Intro / Media Text ============ */
.cat-intro .grid-x + .grid-x { margin-top: 64px; }
.media-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  background: linear-gradient(145deg, #111a30, #0d1428);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10,15,30,0.4));
  pointer-events: none;
}
.media-frame img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.media-frame:hover img { transform: scale(1.03); }
.text-block { padding: 20px 8px; }
.text-block h3 { margin: 12px 0 12px; }
.text-block p { color: var(--text-secondary); margin-bottom: 20px; }
.check-list { display: grid; gap: 10px; }
.check-list li {
  position: relative;
  padding-left: 26px;
  color: var(--text-primary);
  font-size: 15px;
}
.check-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0; top: 1px;
  color: var(--accent-lime);
  font-size: 13px;
  border-radius: 50%;
  background: rgba(199,246,54,0.12);
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
}
.intro-row-reverse { margin-top: 64px; }
/* ============ Stats ============ */
.cat-stats {
  background: linear-gradient(180deg, var(--bg-tertiary), var(--bg-secondary));
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: relative;
}
.cat-stats::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(255,106,44,0.3) 0, rgba(255,106,44,0.3) 80px, transparent 80px, transparent 160px);
}
.stat-card {
  position: relative;
  padding: 28px 24px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  height: 100%;
  overflow: hidden;
}
.stat-card::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 3px;
  border-radius: 2px;
  background: var(--accent-orange);
  opacity: 0.7;
  transition: width 0.3s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,106,44,0.35);
  box-shadow: var(--shadow-hover);
}
.stat-card:hover::before { width: 100%; }
.stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: 46px;
  font-weight: 800;
  color: var(--accent-orange);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.stat-desc {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
}
/* ============ Features ============ */
.feature-card {
  position: relative;
  padding: 28px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  transition: all var(--transition);
  height: 100%;
  overflow: hidden;
}
.feature-card::before {
  content: attr(data-index);
  position: absolute;
  right: 14px; top: 6px;
  font-family: var(--font-num);
  font-size: 52px;
  font-weight: 800;
  color: rgba(255,106,44,0.12);
  line-height: 1;
  pointer-events: none;
}
.feature-card:hover {
  border-color: rgba(255,106,44,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  background: rgba(255,255,255,0.07);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 21px;
  margin-bottom: 18px;
  background: rgba(255,106,44,0.12);
  border: 1px solid rgba(255,106,44,0.2);
  color: var(--accent-orange);
}
.feature-card h3 { margin-bottom: 10px; font-size: 19px; }
.feature-card p { color: var(--text-secondary); font-size: 15px; }
/* ============ Scenarios ============ */
.scene-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
  height: 100%;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.scene-card:hover {
  transform: translateY(-4px);
  border-color: rgba(199,246,54,0.35);
  box-shadow: var(--shadow-hover);
}
.scene-media {
  position: relative;
  height: 160px;
  overflow: hidden;
  background: linear-gradient(140deg, #151f38, #0d1428);
}
.scene-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.scene-card:hover .scene-media img { transform: scale(1.05); }
.scene-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,15,30,0.65));
}
.scene-tag {
  position: absolute;
  left: 14px; bottom: 12px;
  z-index: 2;
}
.scene-body { padding: 20px 22px 24px; }
.scene-body h3 { font-size: 18px; margin-bottom: 8px; }
.scene-body p { color: var(--text-secondary); font-size: 14px; }
/* ============ Flow ============ */
.cat-flow {
  position: relative;
  background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
  border-top: 1px solid rgba(255,255,255,0.05);
}
.flow-step {
  position: relative;
  text-align: center;
  padding: 32px 20px;
  height: 100%;
}
.flow-step::before {
  content: "";
  position: absolute;
  top: 52px; left: 60%;
  width: 80%;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(255,106,44,0.35) 0, rgba(255,106,44,0.35) 8px, transparent 8px, transparent 16px);
  z-index: 0;
}
.flow-step:last-child::before { display: none; }
.flow-num {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-light));
  color: #fff;
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 24px rgba(255,106,44,0.3);
  position: relative;
  z-index: 2;
  font-variant-numeric: tabular-nums;
}
.flow-step h3 { font-size: 18px; margin-bottom: 8px; }
.flow-step p { color: var(--text-secondary); font-size: 14px; max-width: 240px; margin: 0 auto; }
/* ============ FAQ ============ */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item[open] { border-color: rgba(255,106,44,0.3); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  list-style: none;
  transition: background 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--accent-orange);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item summary:hover { background: rgba(255,255,255,0.03); }
.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 0;
}
.faq-answer p { padding-top: 16px; }
/* ============ CTA ============ */
.cat-cta { padding: 80px 0; }
.cta-panel {
  position: relative;
  padding: 56px 40px;
  background:
    linear-gradient(135deg, rgba(255,106,44,0.1), transparent 60%),
    rgba(255,255,255,0.05);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.cta-panel::before {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-lime), transparent);
}
.cta-panel::after {
  content: "";
  position: absolute;
  top: -120px; right: -60px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,106,44,0.12), transparent 70%);
  pointer-events: none;
}
.cta-panel h2 { font-size: 32px; margin-bottom: 14px; }
.cta-panel p { color: var(--text-secondary); margin-bottom: 30px; font-size: 16px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }
.cta-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 13px;
}
.avatar-stack { display: flex; margin-right: 4px; }
.avatar-stack span {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid var(--bg-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #fff;
  margin-left: -8px;
  background: linear-gradient(135deg, rgba(255,106,44,0.8), rgba(199,246,54,0.6));
}
.avatar-stack span:first-child { margin-left: 0; background: linear-gradient(135deg, #3D5AFE, #8B5CF6); }
.avatar-stack span:nth-child(2) { background: linear-gradient(135deg, #FF6A2C, #FFB347); }
.avatar-stack span:nth-child(3) { background: linear-gradient(135deg, #00B4DB, #3DF0B0); }
/* ============ Footer ============ */
.site-footer {
  background: #080D18;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 0;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-lime), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc { color: var(--text-muted); font-size: 14px; margin-top: 14px; max-width: 320px; }
.footer-col h4 {
  font-size: 15px;
  color: var(--text-primary);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 2px;
  border-radius: 1px;
  background: var(--accent-orange);
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { color: var(--text-secondary); font-size: 14px; }
.footer-col a:hover { color: var(--accent-orange); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 18px 0;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 13px;
}
/* ============ Mobile Bottom Bar ============ */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 12px 16px;
  background: rgba(10,15,30,0.95);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--glass-border);
  z-index: 999;
}
/* ============ Animations ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.cat-hero h1 { animation: fadeUp 0.6s ease both; }
.hero-sub { animation: fadeUp 0.6s ease 0.15s both; }
.hero-actions { animation: fadeUp 0.6s ease 0.3s both; }
.hero-data-panel { animation: fadeUp 0.6s ease 0.45s both; }
/* ============ Responsive 1024px ============ */
@media screen and (max-width: 1024px) {
  :root { --section-space: 80px; }
  h1 { font-size: 38px; }
  .cat-hero h1 { font-size: 42px; }
  .search-box input { width: 170px; }
  .nav-links a { padding: 8px 10px; font-size: 14px; }
  .flow-step::before { left: 70%; width: 60%; }
}
/* ============ Responsive 768px ============ */
@media screen and (max-width: 768px) {
  :root { --section-space: 64px; --header-h: 58px; }
  body { font-size: 15px; }
  .nav-inner { height: var(--header-h); }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--header-h); right: 0; bottom: 0;
    width: 300px;
    max-width: 85vw;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 20px;
    background: rgba(10,15,30,0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-left: 1px solid var(--glass-border);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a {
    width: 100%;
    font-size: 16px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .nav-links a.active::after { display: none; }
  .nav-links a.active {
    background: rgba(255,106,44,0.12);
    color: var(--accent-orange);
  }
  .nav-actions { display: none; }
  .nav-mobile-extra {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }
  .nav-mobile-extra .search-box input { width: 100%; }
  .cat-hero { min-height: auto; padding: calc(var(--header-h) + 40px) 0 48px; }
  .cat-hero h1 { font-size: 34px; }
  .hero-data-panel { margin-top: 32px; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 18px 16px; }
  .data-num { font-size: 26px; }
  .data-label { font-size: 12px; }
  .cta-panel { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .mobile-bar { display: block; }
  body { padding-bottom: 76px; }
  .faq-item summary { font-size: 15px; padding: 16px 18px; }
  .faq-answer { padding: 0 18px 16px; }
}
/* ============ Responsive 520px ============ */
@media screen and (max-width: 520px) {
  :root { --section-space: 52px; }
  h1 { font-size: 30px; }
  h2 { font-size: 26px; }
  h3 { font-size: 19px; }
  .cat-hero h1 { font-size: 29px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-data-panel { grid-template-columns: 1fr; }
  .data-item { flex-direction: row; align-items: baseline; gap: 10px; }
  .data-num { font-size: 24px; }
  .text-block { padding: 12px 2px; }
  .flow-step::before { display: none; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; padding-bottom: 90px; }
  .section-head p { font-size: 14px; }
  .feature-card { padding: 22px 18px; }
  .stat-card { padding: 22px 16px; }
  .scene-media { height: 140px; }
  .search-box input { height: 36px; font-size: 14px; }
}
/* ============ Focus accessibility ============ */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}