/* roulang page: index */
:root {
  --bg: #0B0A12;
  --surface: #16141F;
  --surface-2: #1E1B2A;
  --line: rgba(255,255,255,0.08);
  --line-strong: rgba(255,255,255,0.16);
  --split: rgba(255,255,255,0.06);
  --txt-1: #EDEAF3;
  --txt-2: #B0A8C0;
  --txt-3: #817A8F;
  --purple: #7C5CFF;
  --pink: #FF4D9D;
  --gold: #FFC84D;
  --ok: #2DE1A6;
  --warn: #FFB020;
  --danger: #FF5C5C;
  --grad: linear-gradient(120deg, #7C5CFF 0%, #FF4D9D 100%);
  --radius-s: 8px;
  --radius-m: 16px;
  --radius-l: 24px;
  --shadow-card: 0 1px 2px rgba(0,0,0,0.3), 0 12px 32px rgba(0,0,0,0.22);
  --shadow-hover: 0 18px 48px rgba(124,92,255,0.18);
  --shadow-glow: 0 10px 24px rgba(255,77,157,0.25);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 88px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--txt-1);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: #A78BFA; text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--pink); }
ul, ol, li { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: 1rem; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; }

.container { max-width: 1200px; margin: 0 auto; padding-left: var(--space-4); padding-right: var(--space-4); }
.container.slim { max-width: 760px; }

/* ==== 导航栏 ==== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11,10,18,0.62);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.site-header.is-scrolled {
  background: rgba(11,10,18,0.84);
  border-bottom-color: rgba(255,255,255,0.08);
  box-shadow: 0 6px 24px rgba(0,0,0,0.28);
}
.nav-wrap {
  height: 72px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--txt-1); font-weight: 800; font-size: 1.1rem; letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-dot {
  width: 32px; height: 32px; border-radius: 9px;
  background: var(--grad);
  display: inline-grid; place-items: center;
  box-shadow: 0 0 18px rgba(124,92,255,0.4);
}
.brand-dot svg { width: 18px; height: 18px; }
.brand:hover { color: var(--txt-1); }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: 8px; }
.nav-links a {
  color: var(--txt-2); font-size: 0.9375rem; font-weight: 500; position: relative;
  padding: 6px 0;
}
.nav-links a:hover { color: var(--txt-1); }
.nav-links a.active { color: var(--txt-1); }
.nav-links a.active::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  border-radius: 2px; background: var(--grad);
}
.nav-actions { display: flex; align-items: center; gap: 14px; }
.lang-switch {
  display: flex; align-items: center; gap: 4px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 6px;
}
.lang-switch .icon { width: 16px; height: 16px; color: var(--txt-2); margin-right: 2px; }
.lang-item {
  font-size: 0.8125rem; line-height: 1; padding: 6px 10px; border-radius: 999px;
  color: var(--txt-2); transition: all .2s ease;
}
.lang-item.is-active { background: var(--purple); color: #fff; }
.btn-nav {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--grad); border: none; border-radius: 999px;
  color: #fff; font-size: 0.875rem; font-weight: 600;
  padding: 10px 20px; box-shadow: var(--shadow-glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s;
}
.btn-nav:hover { color:#fff; transform: translateY(-1px); box-shadow: 0 12px 28px rgba(255,77,157,0.4); }
.btn-nav:active { transform: translateY(1px); box-shadow: 0 4px 12px rgba(124,92,255,0.25); }
.btn-nav:disabled { opacity: 0.45; box-shadow: none; cursor: not-allowed; }
.nav-burger {
  display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--line); border-radius: 12px;
}
.nav-burger .bar { display:block; width: 18px; height: 2px; background: var(--txt-1); border-radius: 2px; margin: 3px auto; transition: all .3s; }

/* ==== 通用区块排版 ==== */
main.section-wrap { padding-top: 72px; }
.section { padding: var(--space-7) 0; }
.section-title { max-width: 680px; margin-bottom: 48px; }
.kicker {
  display: inline-block; font-size: 0.75rem; letter-spacing: 0.14em;
  color: var(--purple); font-weight: 700; margin-bottom: 10px;
  text-transform: uppercase;
}
.h2 { font-size: clamp(1.6rem, 2.5vw, 2.4rem); font-weight: 700; line-height: 1.25; margin-bottom: 14px; }
.lead { color: var(--txt-2); font-size: 1rem; line-height: 1.75; }
.lead-sm { color: var(--txt-2); font-size: 0.9375rem; line-height: 1.7; }

/* ==== 按钮 ==== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; font-weight: 600; border: none;
  padding: 14px 28px; font-size: 0.9375rem; line-height: 1.2;
  transition: all .25s ease;
}
.btn svg { width: 15px; height: 15px; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: var(--shadow-glow); }
.btn-primary:hover { color:#fff; transform: translateY(-2px); box-shadow: 0 14px 36px rgba(255,77,157,0.4); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(124,92,255,0.2); }
.btn-ghost { background: transparent; color: var(--txt-1); border: 1px solid rgba(255,255,255,0.2); }
.btn-ghost:hover { border-color: rgba(255,77,157,0.6); color: #fff; background: rgba(255,77,157,0.08); }
.btn-lg { padding: 16px 34px; font-size: 1rem; }

/* ==== 主视觉 hero ==== */
.hero {
  min-height: min(92vh, 860px);
  display: flex; align-items: center;
  background-image: linear-gradient(rgba(11,10,18,0.86), rgba(88,63,124,0.55)), url('/assets/images/backpic/back-2.jpg');
  background-size: cover; background-position: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content:""; position:absolute; left:-10%; top:20%; width:820px; height:620px;
  background: radial-gradient(circle at center, rgba(124,92,255,0.22), transparent 68%);
  pointer-events: none;
}
.hero::after {
  content:""; position:absolute; right:-5%; bottom:8%; width:640px; height:500px;
  background: radial-gradient(circle, rgba(255,77,157,0.16), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
  padding-top: 64px; padding-bottom: 64px;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid rgba(124,92,255,0.5); border-radius: 999px;
  color: #C4B5FD; font-size: 0.8125rem; background: rgba(124,92,255,0.15);
  padding: 6px 14px; margin-bottom: 18px;
}
.hero-title {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 800; line-height: 1.15; letter-spacing: 0.01em;
  margin-bottom: 18px;
}
.hero-title .text-grad {
  background: linear-gradient(120deg,#C4B5FD,#FF9DCB);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(237,234,243,0.82); font-size: 1.05rem; line-height: 1.8; max-width: 540px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-metrics { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 42px; }
.metric-item { display: flex; flex-direction: column; }
.metric-num { font-size: 1.4rem; font-weight: 800; color: var(--gold); line-height: 1.2; }
.metric-label { font-size: 0.8125rem; color: var(--txt-3); margin-top: 4px; }

.hero-visual { position: relative; padding: 20px 0 40px; }
.hero-card-1 {
  background: var(--surface-2); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px; overflow: hidden; width: 86%; margin-left: auto;
  transform: rotate(3deg); perspective: 1000px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.45);
}
.hero-card-1 img { width: 100%; height: 340px; object-fit: cover; }
.hero-card-info { padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.hero-card-info h3 { font-size: 1rem; color: var(--txt-1); font-weight: 600; }
.hero-card-info p { color: var(--txt-3); font-size: 0.8125rem; }
.type-badge {
  display:inline-flex; background: rgba(255,77,157,0.18); color: #FF9DCB;
  font-size: 0.75rem; padding:4px 10px; border-radius:999px; white-space:nowrap;
}
.hero-card-2 {
  background: var(--surface-1); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px; overflow: hidden; width: 74%; margin-top: -50px; margin-left: 2%;
  transform: rotate(-2deg); box-shadow: 0 18px 50px rgba(0,0,0,0.4);
}
.hero-card-2 img { width:100%; height:190px; object-fit: cover; }
.hero-card-2 .card-inline { display:flex; justify-content:space-between; gap: 8px; padding:12px 14px; }
.card-inline strong { font-size:0.9375rem; color:var(--txt-1); font-weight:600;}
.card-inline span { color:var(--txt-3); font-size:0.75rem; }
.hero-light { position:absolute; bottom:0; right:10%; width:50%; height:160px; background: radial-gradient(circle, rgba(255,77,157,0.24), transparent 70%); filter: blur(18px); z-index:-1; }

/* ==== 服务/内容板块 ==== */
.section-services { background: var(--bg); position: relative; }
.service-wide {
  grid-column: span 4;
  background: linear-gradient(135deg, rgba(124,92,255,0.12), rgba(255,77,157,0.08)), var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: 30px; position: relative; overflow: hidden;
}
.service-wide::before {
  content:""; position:absolute; right:-30%; top:-50%; width:360px; height:360px;
  background: radial-gradient(circle, rgba(124,92,255,0.2), transparent 70%);
}
.service-wide .svc-icon {
  width:52px; height:52px; border-radius:16px; background: var(--grad);
  display:grid; place-items:center; color:#fff; margin-bottom:18px;
  box-shadow: 0 10px 24px rgba(124,92,255,0.3);
}
.service-wide h3 { font-size:1.25rem; font-weight:700; margin-bottom:10px; }
.service-wide p { color:var(--txt-2); margin-bottom:18px; max-width:520px; }
.link-arrow { display:inline-flex; align-items:center; gap:4px; color:var(--purple); font-weight:600; font-size:0.9375rem; }
.link-arrow:hover { color:var(--pink); }
.link-arrow svg { width:15px; height:15px; transition:transform .25s ease; }
.link-arrow:hover svg { transform: translateX(4px); }
.service-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.service-card {
  grid-column: span 1;
  background: var(--surface); border:1px solid var(--line); border-radius: var(--radius-m);
  padding:24px; transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.service-card:hover { transform: translateY(-3px); border-color: rgba(124,92,255,0.45); background: var(--surface-2); }
.service-card .svc-icon-mini { width:40px;height:40px;border-radius:12px; display:grid; place-items:center; margin-bottom:16px; }
.service-card:nth-child(2) .svc-icon-mini { background:rgba(124,92,255,0.18); color:#B39DFF;}
.service-card:nth-child(3) .svc-icon-mini { background:rgba(255,77,157,0.16); color:#FF9DCB;}
.service-card:nth-child(4) .svc-icon-mini { background:rgba(255,200,77,0.16); color:#FFC84D;}
.service-card:nth-child(5) .svc-icon-mini { background:rgba(45,225,166,0.13); color:#2DE1A6;}
.service-card .svc-icon-mini svg { width:20px; height:20px; }
.service-card h3 { font-size:1rem; font-weight:600; margin-bottom:8px; }
.service-card p { color:var(--txt-3); font-size:0.875rem; }

/* ==== 数据带 ==== */
.data-band {
  background: var(--surface);
  background-image: radial-gradient(circle at 10% 0%, rgba(124,92,255,0.2), transparent 40%), radial-gradient(circle at 90% 100%, rgba(255,77,157,0.12), transparent 40%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.data-grid { display:grid; grid-template-columns: repeat(4,1fr); gap: 30px; padding: calc(var(--space-6) + 8px) 0; text-align:center; }
.data-grid .data-num { font-size: 2.6rem; font-weight:800; background: var(--grad); -webkit-background-clip: text; background-clip:text; color: transparent; line-height:1; }
.data-grid .data-label { margin-top:10px; color: var(--txt-2); font-size:0.9375rem; }
.data-grid .data-note { font-size:0.75rem; color: var(--txt-3); margin-top:2px; }

/* ==== 热门内容区块 ==== */
.featured-grid {
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.featured-card {
  background: var(--surface); border:1px solid var(--line); border-radius: var(--radius-m); overflow:hidden;
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.featured-card:hover {
  transform: translateY(-6px); border-color: rgba(255,77,157,0.4);
  box-shadow: var(--shadow-hover), 0 0 0 1px rgba(255,77,157,0.15);
}
.feat-cover { position:relative; aspect-ratio: 16/10; overflow:hidden; }
.feat-cover img { width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.featured-card:hover .feat-cover img { transform: scale(1.05); }
.feat-mask {
  position:absolute; inset:0; background: linear-gradient(to top, rgba(11,10,18,0.2), transparent);
  display:flex; align-items:flex-end; justify-content:center; opacity:0;
  transition: opacity .35s ease;
}
.featured-card:hover .feat-mask { opacity:1; }
.feat-badge {
  position:absolute; top:14px; left:14px; background: rgba(11,10,18,0.7); backdrop-filter: blur(6px);
  border:1px solid rgba(255,255,255,0.16); border-radius:999px; padding:5px 12px;
  font-size:0.75rem; color:#fff; letter-spacing:0.03em;
}
.feat-info { padding:18px 18px 16px; }
.feat-title { font-size:1.0625rem; font-weight:600; line-height:1.5; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; margin-bottom:8px; }
.feat-desc { color:var(--txt-3); font-size:0.875rem; line-height:1.65; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; margin-bottom:12px; }
.feat-meta {
  display:flex; align-items:center; gap:16px; padding-top:12px;
  border-top:1px solid var(--split); color:var(--txt-3); font-size:0.75rem;
}
.link-inline { display:inline-flex; align-items:center; gap:5px; color:var(--purple); font-size:0.875rem; font-weight:600; margin-top:8px; }
.link-inline svg { width:14px; height:14px; }

/* ==== 场景区块 ==== */
.scene-wrap { display:flex; flex-direction:column; gap:28px; }
.scene-item {
  display:grid; grid-template-columns: 1fr 1fr; align-items:center; gap:44px;
  background: var(--surface); border:1px solid var(--line); border-radius: var(--radius-l);
  padding:34px 34px;
}
.scene-item:nth-child(even) .scene-copy { order: 2; }
.scene-item:nth-child(even) .scene-steps { order: 1; }
.scene-copy .scene-num {
  font-size:0.8125rem; font-weight:700; letter-spacing:0.1em; color: var(--pink); margin-bottom:4px;
}
.scene-copy h3 { font-size:1.28rem; font-weight:700; margin-bottom:10px; }
.scene-copy p { color:var(--txt-2); font-size:0.9375rem; }
.steps-list { display:flex; flex-wrap:wrap; gap:10px 12px; margin-top:16px; }
.step-tag {
  border:1px solid rgba(124,92,255,0.38); background:rgba(124,92,255,0.1);
  border-radius:999px; padding:7px 13px; font-size:0.8125rem; color:#C9BDFF;
}
.scene-steps { background:rgba(255,255,255,0.02); border:1px solid var(--line); border-radius: var(--radius-m); padding:22px; }
.scene-steps li { display:flex; gap:12px; padding:10px 0; color:var(--txt-2); font-size:0.9rem; border-bottom:1px dashed var(--split); }
.scene-steps li:last-child { border-bottom:none; }
.steps-idx { color: var(--gold); font-weight: 800; }

/* ==== 双栏资讯信息资讯列表与右侧推荐 ===== */
.info-two-col { display:grid; grid-template-columns: 2fr 1fr; gap: 30px; background: var(--surface); border:1px solid var(--line); border-radius:var(--radius-l); padding:32px;}
.article-row-item { padding: 15px 0; border-bottom: 1px solid var(--split); }
.article-row-item:last-child { border-bottom: 0; }
.ar-head { display:flex; justify-content:space-between; gap:18px; margin-bottom:4px;}
.ar-title { color:var(--txt-1); font-weight:600; font-size:0.99rem; line-height:1.5; transition:color .2s;}
.ar-title:hover { color:var(--pink); }
.ar-meta { font-size: 0.8125rem; color: var(--txt-3); padding-left:2px;}
.info-reco { background:var(--surface-2); border:1px solid var(--line); border-radius:var(--radius-m); padding:24px; }
.info-reco h4 { font-size:1rem; margin-bottom:14px; }
.reco-tags { display:flex; flex-wrap:wrap; gap:8px; }
.reco-tag { font-size:0.8125rem; color:var(--txt-2); padding:6px 11px; border-radius:999px; border:1px solid var(--line); transition:all .2s; }
.reco-tag:hover { color:var(--pink); border-color:rgba(255,77,157,.5); }
.reco-list li { padding:10px 0; border-bottom:1px dashed var(--split); font-size:0.875rem; color:var(--txt-2); }
.reco-list li a { color:var(--txt-2); }
.reco-list li a:hover { color:var(--pink); }

/* ==== FAQ ==== */
.faq-container { max-width: 820px; margin: auto; }
.faq-item { border:1px solid var(--line); border-radius:12px; background:var(--surface); margin-bottom:12px; overflow:hidden; transition: border-color .3s; }
.faq-item:first-child .faq-a { display:block; }
.faq-item.open { border-color: rgba(255,77,157,0.45); }
.faq-q {
  width:100%; display:flex; align-items:center; gap:16px; background:none; border:none;
  padding:19px 22px; font-size:0.97rem; font-weight:500; color:var(--txt-1); text-align:left;
}
.faq-q:hover { color: var(--pink); }
.faq-q .quest-mark { font-size:0.85rem; color:var(--purple); font-weight:800; }
.faq-q .faq-icon { margin-left:auto; width:22px;height:22px; border-radius:50%; border:1px solid rgba(255,255,255,0.2); position:relative; flex:none; }
.faq-q .faq-icon::after,
.faq-q .faq-icon::before { content:""; position:absolute; background: var(--txt-2); border-radius:2px; }
.faq-q .faq-icon::after { width:9px;height:1.5px;top:50%;left:50%;transform:translate(-50%,-50%);}
.faq-q .faq-icon::before { width:1.5px;height:9px;top:50%;left:50%;transform:translate(-50%,-50%); transition:transform .3s; }
.faq-item.open .faq-q .faq-icon::before { transform: translate(-50%,-50%) rotate(90deg); opacity:0; }
.faq-item.open .faq-q .faq-icon { background: rgba(255,77,157,0.25); border-color: rgba(255,77,157,0.5); }
.faq-a { display:none; padding:0 22px 22px; color:var(--txt-2); font-size:0.9rem; line-height:1.75; border-top:1px solid var(--split); padding-top:16px; }
.faq-a a { color: var(--purple); }

/* ==== CTA & 联系 ==== */
.cta-zone {
  background: var(--surface);
  background-image: radial-gradient(circle at 30% 0%, rgba(124,92,255,0.2), transparent 55%), radial-gradient(circle at 60% 100%, rgba(255,77,157,0.15), transparent 50%);
  border:1px solid var(--line); border-radius:var(--radius-l); padding:54px;
  display:grid; grid-template-columns: 1fr 1fr; gap:64px; align-items: center;
}
.cta-title { font-size: clamp(1.6rem, 2.4vw, 2.2rem); font-weight:700; margin: 8px 0 14px; }
.cta-btn-row { display:flex; flex-wrap:wrap; gap:14px; margin-top:24px; }
.contact-form-box { background:var(--surface-2); border:1px solid var(--line); border-radius:24px; padding:30px; }
.contact-form-box h3 { font-size:1.3rem; margin-bottom:6px; }
.f-label { display:block; font-size:0.9rem; color:var(--txt-2); margin-bottom:6px; }
.form-item { margin-bottom:15px; }
.form-input {
  width:100%; background: rgba(255,255,255,0.04); border:1px solid var(--line);
  border-radius:8px; padding:12px 14px; color:#fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-input:focus { outline:none; border-color: var(--pink); box-shadow: 0 0 0 3px rgba(255,77,157,0.12); }
textarea.form-input { min-height:96px; resize:vertical; }
.form-btn { width:auto; }
@media (max-width: 900px) {
  .form-btn { width:100%; }
}

/* ==== 页脚 ==== */
.footer {
  border-top:1px solid var(--line); background:#07060C; color:var(--txt-2);
  padding: 56px 0 0; margin-top: calc(var(--space-7) - 8px);
}
.footer-grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:34px; }
.footer-grid h4 { color: var(--txt-1); font-size:0.9375rem; font-weight:700; margin-bottom:12px; }
.footer-brand { font-size:1.2rem; color:#fff; font-weight:800; display:flex; gap:8px; align-items:center; margin-bottom:10px; }
.footer-grid p { font-size:0.875rem; color:var(--txt-3); }
.f-links li { margin: 6px 0; }
.f-links a { color: var(--txt-3); font-size:0.875rem; }
.f-links a:hover { color: var(--pink); text-decoration: underline; text-underline-offset:4px; }
.footer-contact li { display:flex; gap:8px; font-size:0.875rem; color:var(--txt-3); margin-bottom:6px;}
.footer-safe {
  border-top:1px solid rgba(255,255,255,0.05); padding:16px 0; font-size:0.8125rem; color:var(--txt-3);
}
.footer-safe .container { display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; }

/* ==== 通用列表 / 徽章 ==== 外层 */
.mini-badge {
  display:inline-block; background:rgba(255,255,255,0.06); border-radius:999px;
  border:1px solid var(--line); color:var(--txt-2); font-size:0.8125rem; padding:4px 10px; margin-right:6px;
}

/* ==== 页面入场动画 ==== */
@keyframes fadeUp { from { opacity:0; transform: translateY(16px); } to { opacity:1; transform: translateY(0); } }
.fade-up { animation: fadeUp .6s ease both; }
.fade-up.delay-1 { animation-delay:.15s; }
.fade-up.delay-2 { animation-delay:.3s; }

/* ===== 分类页 layouts ===== */
.page-head {
  background-image: linear-gradient( rgba(11,10,18,0.7), rgba(11,10,18,0.92)), url('/assets/images/backpic/back-3.jpg');
  background-size:cover; background-position: center;
  padding: 56px 0 42px; margin-top:72px;
  border-bottom:1px solid var(--line);
}
.breadcrumb { color:var(--txt-3); font-size:0.85rem; margin-bottom:14px; }
.breadcrumb a { color:var(--txt-2); }
.breadcrumb a:hover { color:var(--pink); }
.page-head h1 { font-size:clamp(1.7rem, 3vw, 2.5rem); font-weight:800; margin-bottom:12px; line-height:1.2;}
.page-head p { font-size:0.98rem; color:var(--txt-2); max-width:760px; margin-bottom:16px; }
.cat-budges { display:flex; flex-wrap:wrap; gap:8px; }
.cat-budges span {
  background: rgba(255,255,255,0.05); border:1px solid var(--line);
  color: var(--txt-2); font-size:0.8125rem; padding:6px 12px; border-radius: 999px;
}
.cat-layout { display:grid; grid-template-columns: 72% 28%; gap: 26px; padding-top: 40px; padding-bottom: 60px; }
.cat-main { min-width:0; }
.cat-aside { min-width:0; }

/* tool bar */
.filter-toolbar {
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:14px 16px;
  margin-bottom:18px; flex-wrap:wrap;
}
.cat-filters { display:flex; flex-wrap:wrap; gap:10px; flex:1; }
.cat-filters button {
  border:1px solid var(--line); color:var(--txt-2); background:transparent;
  border-radius:999px; padding:7px 16px; font-size:0.8125rem;
  transition: all .2s;
}
.cat-filters button:hover { border-color: rgba(255,77,157,.4); color:#fff; }
.cat-filters button.is-active { background:rgba(124,92,255,.24); border-color:rgba(124,92,255,.6); color:#fff; }
.filter-sort { position:relative; display:flex; align-items:center; gap:8px; color:var(--txt-3); font-size:0.875rem; }
.filter-sort select {
  background:rgba(255,255,255,0.07); border:1px solid var(--line); color:var(--txt-1);
  border-radius:999px; padding:7px 28px 7px 14px; appearance:none; font-size:0.8125rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23B0A8C0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 12px center;
}

.result-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.result-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden; display:flex; flex-direction:column; transition: transform .3s, border-color .3s, box-shadow .3s; }
.result-card:hover { transform: translateY(-4px); border-color: rgba(124,92,255,0.42); box-shadow: var(--shadow-hover);}
.result-card .rc-cover{ aspect-ratio:4/3; position:relative; overflow:hidden;}
.result-card .rc-cover img{ width:100%;height:100%; object-fit:cover; transition: transform .4s; }
.result-card:hover .rc-cover img { transform: scale(1.06); }
.rc-tag{ position:absolute; left:12px; top:12px; }
.result-card .rc-body { padding:16px 17px 14px; display:flex; flex-direction:column; flex:1;}
.rc-title { font-size:0.97rem; font-weight:600; line-height:1.5; display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical; overflow:hidden; margin-bottom:6px;}
.rc-desc { color:var(--txt-3); font-size:0.8125rem; line-height:1.6; display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical; overflow:hidden; }
.rc-desc2 { display:flex; align-items:center; justify-content:space-between; margin-top:10px; color:var(--txt-3); font-size:0.75rem; border-top:1px solid var(--split); padding-top:10px;}
.rc-view { display:inline-flex; align-items:center; gap:4px; color:var(--txt-3);}
.rc-view svg{ width:14px;height:14px; }

/* pagination */
.pagination { display:flex; align-items:center; justify-content:center; gap:8px; margin-top:26px; flex-wrap:wrap; }
.pagination a, .pagination span {
  min-width:38px; height:38px; border:1px solid var(--line); border-radius:10px;
  display:grid; place-items:center; color:var(--txt-2); background:var(--surface); font-size:0.875rem;
}
.pagination a:hover { color: var(--pink); border-color: rgba(255,77,157,.5);}
.pagination span.is-current { background: var(--grad); color:#fff; border-color:transparent; box-shadow: var(--shadow-glow); }

/* 侧栏 side */
.cat-side-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-m); padding:22px; margin-bottom:14px; }
.cat-side-card h3 { font-size:1.02rem; font-weight:700; margin-bottom:14px; }
.side-tags { display:flex; flex-wrap:wrap; gap:8px;}
.side-tag-xs {
  background:rgba(255,255,255,0.04); border:1px solid var(--line); border-radius:999px;
  color:var(--txt-2); font-size:0.8rem; padding:5px 11px; transition: all .2s; margin-right:4px; display:inline-block;
}
.side-tag-xs:hover { color: var(--pink); border-color:rgba(255,77,157,.6); }
.cat-tree { border-left:1px solid rgba(255,255,255,0.14); padding-left:14px; margin-top:8px;}
.cat-tree li {position:relative; margin:4px 0; padding:4px 0;}
.cat-tree li::before { content:""; width:6px;height:6px; background: var(--purple); border-radius:50%; position:absolute; left:-16px; top:13px; }
.cat-tree a { color: var(--txt-2); font-size:0.875rem; }
.cat-tree a:hover { color: var(--pink); }
.summary-tip {
  border-left: 3px solid transparent; background-image: linear-gradient(0deg, rgba(124,92,255,.16), rgba(255,77,157,.08));
  background-origin: border-box; background-clip: border-box; border-left:3px solid #7c5cff;
  border-radius: 12px; padding: 13px 15px; color: var(--txt-2); font-size: 0.875rem;
}

/* ===== start responsive ===== */
@media (max-width: 1100px) {
  .service-grid { grid-template-columns: repeat(2,1fr); }
  .service-wide { grid-column: span 2; }
  .result-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 960px) {
  .cat-layout { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap:36px; }
  .hero-visual { width:60%; margin:0 auto; }
  .nav-links { display:none; flex-direction: column; position: absolute; top:72px; left:0; right:0; background:rgba(11,10,18,0.97); padding:24px 32px; border-bottom:1px solid var(--line); }
  .nav-links.is-open { display:flex; }
  .nav-links a { margin: 4px 0; }
  .nav-links a.active::after { display:none; }
  .nav-burger { display:flex; }
  .info-two-col { grid-template-columns: 1fr; }
  .scene-item { grid-template-columns: 1fr; }
  .scene-item:nth-child(even) .scene-copy { order: unset; }
  .scene-item:nth-child(even) .scene-steps { order: unset; }
  .cta-zone { grid-template-columns: 1fr; gap:40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero-title { font-size:2.1rem; }
  .section { padding: 70px 0; }
  .data-grid { grid-template-columns: repeat(2,1fr); gap:36px; }
  .featured-grid { grid-template-columns: repeat(2,1fr); }
  .result-grid { grid-template-columns: 1fr; }
  .page-head { margin-top: 60px; }
}
@media (max-width: 576px) {
  body { font-size:0.977rem;}
  .container { padding-left:16px; padding-right:16px; }
  .nav-wrap { height:60px; }
  main.section-wrap { padding-top:60px; }
  .page-head { margin-top:60px; padding:34px 0; }
  .hero { min-height:auto; }
  .hero-inner { padding-top:30px; padding-bottom:36px; }
  .hero-visual { width:100%; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap:24px; }
  .section-title { margin-bottom:30px; }
  .cta-zone { padding:28px 22px; }
  .form-item { width: auto; }
  .contact-form-box { padding:24px; }
  .info-two-col { padding:20px; }
  .nav-actions .lang-switch { display:none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration:1ms!important; transition-duration:1ms!important; }
  html { scroll-behavior:auto; }
}

/* roulang page: category1 */
:root{
  --bg:#0B0A12;
  --surface:#16141F;
  --surface-2:#1E1B2A;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --split:rgba(255,255,255,0.06);
  --txt-1:#EDEAF3;
  --txt-2:#B0A8C0;
  --txt-3:#817A8F;
  --purple:#7C5CFF;
  --pink:#FF4D9D;
  --gold:#FFC84D;
  --ok:#2DE1A6;
  --warn:#FFB020;
  --danger:#FF5C5C;
  --grad:linear-gradient(120deg,#7C5CFF 0%,#FF4D9D 100%);
  --radius-s:8px;
  --radius-m:16px;
  --radius-l:24px;
  --shadow-card:0 1px 2px rgba(0,0,0,0.3),0 12px 32px rgba(0,0,0,0.22);
  --shadow-hover:0 18px 48px rgba(124,92,255,0.18);
  --shadow-glow:0 10px 24px rgba(255,77,157,0.25);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:64px;
  --space-7:88px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--txt-1);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:#A78BFA;text-decoration:none;transition:color .25s ease,border-color .25s ease,transform .25s ease}
a:hover{color:var(--pink)}
button,input,select,textarea{font-family:inherit;font-size:1rem}
button{cursor:pointer}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding-left:var(--space-4);padding-right:var(--space-4)}
.container-slim{max-width:840px;margin:0 auto}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,10,18,0.62);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-header.is-scrolled{
  background:rgba(11,10,18,0.84);
  border-bottom-color:rgba(255,255,255,0.08);
  box-shadow:0 6px 24px rgba(0,0,0,0.28);
}
.nav-wrap{
  height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--txt-1);font-weight:800;font-size:1.1rem;letter-spacing:.02em;
  white-space:nowrap;
}
.brand-dot{
  width:32px;height:32px;border-radius:9px;
  background:var(--grad);
  display:inline-grid;place-items:center;
  box-shadow:0 0 18px rgba(124,92,255,0.4);
}
.brand-dot svg{width:18px;height:18px}
.brand:hover{color:var(--txt-1)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-links a{
  color:var(--txt-2);font-size:.9375rem;font-weight:500;
  position:relative;padding:6px 0;
}
.nav-links a:hover{color:var(--txt-1)}
.nav-links a.active{color:var(--txt-1)}
.nav-links a.active::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:2px;
  border-radius:2px;background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:14px}
.lang-switch{
  display:inline-flex;align-items:center;gap:2px;
  border:1px solid var(--line);
  border-radius:999px;padding:3px;
  background:rgba(255,255,255,0.03);
}
.lang-item{
  font-size:.8125rem;line-height:1;
  padding:6px 10px;border-radius:999px;
  color:var(--txt-2);transition:all .2s ease;
}
.lang-item.is-active{background:var(--purple);color:#fff}
.btn-nav{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--grad);border:none;border-radius:999px;
  color:#fff;font-size:.875rem;font-weight:600;
  padding:10px 20px;box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-nav:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(255,77,157,0.4)}
.btn-nav:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(124,92,255,0.25)}
.nav-burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;
  flex-direction:column;gap:3px;
}
.nav-burger .bar{display:block;width:18px;height:2px;background:var(--txt-1);border-radius:2px;margin:0;transition:all .3s}
.nav-burger.is-open .bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-burger.is-open .bar:nth-child(2){opacity:0}
.nav-burger.is-open .bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.icon{width:16px;height:16px}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;border:none;
  padding:13px 26px;font-size:.9375rem;line-height:1.3;
  transition:all .25s ease;
}
.btn svg{width:15px;height:15px}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{color:#fff;box-shadow:0 14px 36px rgba(255,77,157,0.4)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(124,92,255,0.2)}
.btn-ghost{background:transparent;color:var(--txt-1);border:1px solid rgba(255,255,255,0.22)}
.btn-ghost:hover{border-color:rgba(255,77,157,0.6);color:#fff;background:rgba(255,77,157,0.08)}
.btn-lg{padding:16px 32px;font-size:1rem}
:focus-visible{
  outline:2px solid var(--pink);
  outline-offset:3px;
}
::selection{background:rgba(124,92,255,0.4)}

/* ===== 分类页公共 ===== */
.cat-main-wrap{padding-top:72px}

/* 面包屑 */
.crumb{
  padding:22px 0 0;
  font-size:.875rem;
  color:var(--txt-3);
  display:flex;align-items:center;gap:10px;
  flex-wrap:wrap;
}
.crumb a{color:var(--txt-3)}
.crumb a:hover{color:var(--pink)}
.crumb .sep{color:var(--txt-3);opacity:.7}
.crumb .current{color:var(--txt-2);font-weight:500}

/* 分类页头 */
.cat-hero{
  margin-top:16px;
  border-radius:var(--radius-l);
  overflow:hidden;
  position:relative;
  background:
    radial-gradient(circle at 78% 20%,rgba(255,77,157,0.22),transparent 42%),
    radial-gradient(circle at 20% 80%,rgba(124,92,255,0.26),transparent 45%),
    linear-gradient(115deg,rgba(11,10,18,0.94) 20%,rgba(56,43,86,0.72) 100%),
    url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,10,18,0.25) 60%,rgba(11,10,18,0) 100%);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:2;
  padding:52px 0 46px;
  display:flex;flex-direction:column;gap:18px;
}
.cat-hero .mini-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.14em;font-weight:600;
  color:var(--gold);
  background:rgba(255,200,77,0.1);
  border:1px solid rgba(255,200,77,0.3);
  border-radius:999px;padding:7px 14px;
  width:fit-content;
}
.mini-label svg{width:13px;height:13px}
.cat-hero h1{
  font-size:clamp(1.8rem,3.4vw,3rem);
  font-weight:800;line-height:1.22;
  max-width:820px;
}
.cat-hero .cat-desc{
  color:var(--txt-2);
  max-width:760px;
  font-size:1rem;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.tag-chip{
  font-size:.8125rem;color:var(--txt-2);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;
  transition:all .2s;
}
.tag-chip:hover{
  color:#fff;border-color:rgba(255,77,157,0.6);
  background:rgba(255,77,157,0.1);
}

/* 分类主体两栏 */
.cat-body{padding:48px 0 80px}
.cat-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 344px;
  align-items:start;gap:40px;
}
.cat-main-section{min-width:0}
.aside-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}

/* 工具栏 */
.tool-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:16px 18px;
  margin-bottom:28px;
}
.filter-list{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.filter-item{
  font-size:.8125rem;color:var(--txt-2);
  border:1px solid transparent;
  background:rgba(255,255,255,0.04);
  padding:7px 15px;border-radius:999px;
  transition:all .2s ease;
}
.filter-item:hover{color:#fff;background:rgba(255,77,157,0.14);border-color:rgba(255,77,157,0.28)}
.filter-item.is-active{
  background:var(--grad);color:#fff;
  border-color:transparent;
  box-shadow:0 4px 14px rgba(255,77,157,0.22);
}
.tool-sort{
  display:flex;align-items:center;gap:8px;
  color:var(--txt-3);font-size:.8125rem;
}
.sort-select{
  appearance:none;
  -webkit-appearance:none;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23B0A8C0' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") right 12px center/14px no-repeat,
    rgba(255,255,255,0.05);
  color:var(--txt-1);
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 32px 8px 14px;
  font-size:.875rem;
  transition:border-color .2s;
  cursor:pointer;
}
.sort-select:focus{border-color:var(--purple);outline:none;box-shadow:0 0 0 3px rgba(124,92,255,0.22)}

/* 结果元信息 */
.list-meta{
  display:flex;justify-content:space-between;align-items:baseline;
  margin-bottom:16px;
}
.list-meta h2{
  font-size:clamp(1.05rem,2vw,1.4rem);
  font-weight:700;
}
.list-meta span{color:var(--txt-3);font-size:.8125rem}

/* 结果卡片 */
.result-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.article-card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,77,157,0.42);
  box-shadow:var(--shadow-hover);
}
.article-image{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-2);
}
.article-image img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.article-card:hover img{transform:scale(1.04)}
.article-badge{
  position:absolute;top:12px;right:12px;
  font-size:.75rem;line-height:1;
  color:#fff;
  padding:6px 11px;border-radius:999px;
  background:rgba(11,10,18,0.62);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.16);
  font-weight:600;
}
.badge-pink{background:rgba(255,77,157,0.72);border-color:rgba(255,255,255,0.2)}
.badge-gold{background:rgba(255,200,77,0.76);color:#1A1305;border-color:rgba(255,255,255,0.14)}
.badge-purple{background:rgba(124,92,255,0.72);border-color:rgba(255,255,255,0.2)}
.badge-dark{background:rgba(22,20,31,0.82);border-color:rgba(255,255,255,0.18)}
.article-content{
  padding:18px;
  display:flex;flex-direction:column;flex:1;
}
.article-content h3{
  font-size:1.05rem;
  line-height:1.5;
  margin-bottom:8px;
  font-weight:700;
}
.article-content h3 a{color:var(--txt-1)}
.article-content h3 a:hover{color:var(--pink)}
.article-content p{
  flex:1;
  color:var(--txt-2);
  font-size:.875rem;
  line-height:1.7;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta{
  display:flex;justify-content:space-between;align-items:center;
  color:var(--txt-3);
  font-size:.75rem;
  margin-top:8px;
}
.article-enter{
  color:var(--purple);
  font-weight:600;
  font-size:.8125rem;
  display:inline-flex;align-items:center;gap:4px;
}
.article-enter svg{width:13px;height:13px;transition:transform .2s}
.article-card:hover .article-enter{color:var(--pink)}
.article-card:hover .article-enter svg{transform:translateX(4px)}

/* 分页 */
.pagination-box{
  margin-top:36px;
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.page-num{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--txt-2);
  font-size:.875rem;
  transition:all .2s;
}
.page-num.is-current{
  background:var(--grad);
  color:#fff;border-color:transparent;
  font-weight:700;
}
.page-num:hover{
  border-color:rgba(255,77,157,0.45);
  color:#fff;
  transform:translateY(-1px);
}
.page-arrow{padding:0 14px;font-weight:600}
.page-disabled{opacity:.45;pointer-events:none}

/* ===== 侧栏 ===== */
.side-box{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.side-title{
  font-size:1rem;font-weight:700;
  margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{
  content:"";
  width:4px;height:16px;
  border-radius:99px;
  background:var(--grad);
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{
  font-size:.8125rem;
  color:var(--txt-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:5px 12px;
  transition:all .2s;
  background:rgba(255,255,255,0.025);
}
.tag-pill:hover{
  color:#fff;
  border-color:rgba(255,77,157,0.55);
  background:rgba(255,77,157,0.1);
}
.tree-list li{margin-bottom:2px}
.tree-list a{
  display:flex;align-items:flex-start;gap:8px;
  color:var(--txt-2);
  font-size:.875rem;
  padding:7px 8px;
  border-radius:8px;
  transition:background .2s,color .2s;
  position:relative;
}
.tree-list a::before{
  content:"";
  width:1px;height:15px;
  background:var(--split);
  position:relative;top:6px;
}
.tree-list a:hover{background:rgba(124,92,255,0.08);color:#fff}
.tree-list .tree-group{margin:6px 0 4px 15px;border-left:1px solid var(--split);padding-left:8px}
.tree-list .tree-root>a{color:var(--txt-1);font-weight:600}
.tree-list .tree-root>a::before{background:linear-gradient(var(--purple),var(--pink))}

/* 精选问答 */
.qa-mini{border-top:1px solid var(--split)}
.qa-item{
  border-bottom:1px solid var(--split);
}
.qa-q{
  display:flex;gap:12px;align-items:center;
  background:none;border:none;width:100%;text-align:left;
  padding:13px 2px;
  color:var(--txt-1);font-weight:500;font-size:.875rem;
}
.qa-q .qa-mark{
  flex:0 0 22px;width:22px;height:22px;
  border-radius:50%;
  background:rgba(124,92,255,0.13);
  border:1px solid rgba(124,92,255,0.32);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--purple);
  font-weight:700;
  transition:all .25s;
}
.qa-item.open .qa-mark{
  background:var(--pink);border-color:var(--pink);
  color:#fff;
  transform:rotate(45deg);
}
.qa-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease,opacity .3s;
  opacity:0;
  color:var(--txt-2);
  font-size:.8125rem;
  padding-left:34px;
  line-height:1.7;
}
.qa-item.open .qa-a{
  max-height:260px;
  opacity:1;
  padding-bottom:15px;
}

/* 本页摘要 */
.summary-box{
  border-left:3px solid transparent;
  border-image:linear-gradient(180deg,var(--purple),var(--pink)) 1;
  padding:16px 18px;
  background:rgba(124,92,255,0.06);
  border-radius:8px 16px 16px 8px;
}
.summary-box p{color:var(--txt-2);font-size:.8125rem;line-height:1.75}

/* ===== 底部CTA ===== */
.cta-band{
  padding:0 0 88px;
}
.cta-panel{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.08);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:44px;
  padding:52px 56px;
  background:
    radial-gradient(circle at 80% 10%,rgba(255,77,157,0.18),transparent 44%),
    radial-gradient(circle at 10% 90%,rgba(124,92,255,0.2),transparent 48%),
    linear-gradient(120deg,#1A1626,#241A34);
}
.cta-title{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;line-height:1.4;margin-bottom:12px}
.cta-text{color:var(--txt-2);font-size:.9375rem;margin-bottom:16px;max-width:520px}
.cta-steps{
  display:flex;flex-direction:column;gap:12px;margin:18px 0 24px;
}
.cta-step{
  display:flex;gap:12px;
  color:var(--txt-2);font-size:.875rem;
  align-items:flex-start;
}
.cta-step .step-index{
  flex:0 0 24px;height:24px;
  border-radius:50%;
  background:rgba(255,200,77,0.14);
  border:1px solid rgba(255,200,77,0.28);
  color:var(--gold);
  font-size:.75rem;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;
}
.form-wrap{
  background:rgba(11,10,18,0.56);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  backdrop-filter:blur(8px);
}
.form-title{font-size:1.05rem;font-weight:700;margin-bottom:16px}
.form-row{margin-bottom:16px}
.form-row label{
  display:block;font-size:.8125rem;color:var(--txt-3);
  margin-bottom:6px;font-weight:500;
}
.input-field{
  width:100%;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line);
  border-radius:12px;
  padding:11px 14px;
  color:var(--txt-1);
  transition:border-color .2s,box-shadow .2s;
}
.input-field:focus{
  outline:none;
  border-color:var(--pink);
  box-shadow:0 0 0 3px rgba(255,77,157,0.16);
}
textarea.input-field{min-height:96px;resize:vertical}
.form-submit{
  width:100%;
  border:none;
  background:var(--grad);
  color:#fff;
  border-radius:999px;
  padding:13px 24px;
  font-size:.9375rem;
  font-weight:600;
  box-shadow:var(--shadow-glow);
  transition:all .2s;
}
.form-submit:hover{transform:translateY(-1px);box-shadow:0 14px 36px rgba(255,77,157,0.36)}
.form-submit:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(124,92,255,0.2)}
.form-note{
  margin-top:12px;
  font-size:.75rem;color:var(--txt-3);
  text-align:center;
  line-height:1.6;
}

/* ===== 页脚 ===== */
.footer{
  border-top:1px solid var(--line);
  background:#09080F;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-top:64px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.2rem;color:var(--txt-1);
  margin-bottom:14px;
}
.footer p{color:var(--txt-3);font-size:.875rem;line-height:1.75}
.footer h4{font-size:.9375rem;margin-bottom:15px;color:var(--txt-1)}
.f-links li{margin-bottom:9px}
.f-links a{color:var(--txt-3);font-size:.875rem;position:relative;padding-bottom:3px}
.f-links a:hover{color:var(--pink)}
.f-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--pink);transition:width .25s;
}
.f-links a:hover::after{width:100%}
.footer-contact li{
  color:var(--txt-3);
  font-size:.875rem;
  margin-bottom:9px;
  display:flex;gap:8px;align-items:flex-start;
}
.footer-contact svg{width:15px;height:15px;margin-top:5px;flex:0 0 auto;color:var(--purple)}
.footer-safe{
  border-top:1px solid var(--split);
  padding:18px 0;
}
.footer-safe .container{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer-safe span{color:var(--txt-3);font-size:.75rem}

/* ===== 移动端导航 ===== */
@media(max-width:1023px){
  .nav-links{
    position:fixed;top:60px;left:0;right:0;z-index:99;
    flex-direction:column;
    align-items:stretch;gap:4px;
    background:rgba(11,10,18,0.96);
    padding:18px 24px 22px;
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(18px);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 4px;font-size:1rem}
  .nav-links a.active::after{height:2px;left:4px;right:auto;width:48px}
  .nav-actions .btn-nav{display:none}
  .nav-burger{display:inline-flex}
  .nav-wrap{height:60px}
  .cat-main-wrap{padding-top:60px}
}

/* ===== 断点调整 ===== */
@media(min-width:1024px){
  .cat-main-wrap{padding-top:72px}
}
@media(max-width:1180px){
  .cat-grid{
    grid-template-columns:minmax(0,1fr);
  }
  .aside-sticky{
    position:static;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
    margin-top:28px;
  }
  .side-box:last-child{grid-column:1/-1}
  .result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .container{padding-left:16px;padding-right:16px}
  .nav-wrap{gap:10px}
  .brand{font-size:1rem}
  .lang-switch .lang-item{padding:5px 8px}
  .crumb{font-size:.8125rem;row-gap:6px}
  .cat-hero-inner{padding:36px 0 32px}
  .result-grid{grid-template-columns:1fr}
  .article-content h3{font-size:1rem}
  .cat-body{padding:32px 0 64px}
  .tool-bar{flex-direction:column;align-items:stretch}
  .tool-sort{justify-content:space-between}
  .aside-sticky{grid-template-columns:1fr}
  .cta-panel{padding:28px 20px;border-radius:20px}
  .form-wrap{padding:20px}</phú>
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-safe .container{flex-direction:column;text-align:center}
  .pagination-box{flex-wrap:wrap}
  .btn-lg{padding:13px 22px}
}

/* 减少动态偏好 */
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}