/*! 同人3D漫画 ivrgxd.cn — Glassmorphism Modern UI v1.0 */

/* ========== 设计令牌 ========== */
:root {
  --bg-0: #0b0b1a;
  --bg-1: #11132a;
  --bg-2: #1a1d3a;
  --fg-0: #f4f5fb;
  --fg-1: #c9cce0;
  --fg-2: #8b8fae;
  --primary: #7c5cff;
  --primary-2: #ff5cb1;
  --accent: #00e5ff;
  --warning: #ffb547;
  --danger: #ff5c7a;
  --glass-bg: rgba(255, 255, 255, 0.07);
  --glass-bd: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 10px 40px rgba(10, 10, 30, 0.45);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --tr-fast: 180ms cubic-bezier(.4,.2,.2,1);
  --tr: 280ms cubic-bezier(.4,.2,.2,1);
  --tr-slow: 480ms cubic-bezier(.4,.2,.2,1);
  --container: 1200px;
  --header-h: 76px;
  --grad-1: linear-gradient(135deg, #7c5cff 0%, #ff5cb1 50%, #00e5ff 100%);
  --grad-2: linear-gradient(135deg, rgba(124,92,255,.3), rgba(255,92,177,.25));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body.site-k7q2 {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg-0);
  background: radial-gradient(1200px 800px at 10% -10%, rgba(124,92,255,.35), transparent 60%),
              radial-gradient(1000px 700px at 110% 10%, rgba(255,92,177,.3), transparent 60%),
              radial-gradient(900px 600px at 50% 110%, rgba(0,229,255,.25), transparent 60%),
              var(--bg-0);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--fg-0); text-decoration: none; transition: color var(--tr-fast); }
a:hover { color: var(--accent); }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }

/* ========== 工具类 ========== */
.container-k7q2 {
  width: min(100%, var(--container));
  margin: 0 auto;
  padding: 0 24px;
}
.sr-only-k7q2 {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link-k7q2 {
  position: absolute; top: -40px; left: 12px;
  background: var(--primary); color: #fff;
  padding: 8px 14px; border-radius: 8px; z-index: 1000;
  transition: top var(--tr);
}
.skip-link-k7q2:focus { top: 12px; }

/* ========== Header ========== */
.site-header-k7q2 {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(11, 11, 26, 0.55);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background var(--tr), box-shadow var(--tr);
}
.site-header-k7q2.is-scrolled-k7q2 {
  background: rgba(11, 11, 26, 0.78);
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
}
.header-inner-k7q2 {
  height: 100%;
  display: flex; align-items: center; gap: 24px;
}
.brand-k7q2 { margin: 0; font-size: 0; flex-shrink: 0; }
.brand-link-k7q2 {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 700; letter-spacing: .5px;
}
.brand-logo-k7q2 {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--grad-1);
  padding: 4px;
  box-shadow: 0 6px 18px rgba(124,92,255,.45);
  transition: transform var(--tr);
}
.brand-link-k7q2:hover .brand-logo-k7q2 { transform: rotate(-6deg) scale(1.05); }
.brand-text-k7q2 {
  background: var(--grad-1); -webkit-background-clip: text;
  background-clip: text; color: transparent;
}

.main-nav-k7q2 { flex: 1; display: flex; justify-content: center; }
.nav-list-k7q2 {
  display: flex; gap: 6px; margin: 0; padding: 0; list-style: none;
  flex-wrap: wrap; justify-content: center;
}
.nav-link-k7q2 {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--fg-1);
  font-size: 14.5px;
  transition: color var(--tr-fast), background var(--tr-fast);
}
.nav-link-k7q2::after {
  content: ""; position: absolute; left: 50%; bottom: 4px;
  transform: translateX(-50%) scaleX(0);
  width: 60%; height: 2px; border-radius: 2px;
  background: var(--grad-1);
  transition: transform var(--tr);
}
.nav-link-k7q2:hover, .nav-link-k7q2.is-active-k7q2 {
  color: var(--fg-0); background: rgba(255,255,255,.06);
}
.nav-link-k7q2:hover::after, .nav-link-k7q2.is-active-k7q2::after { transform: translateX(-50%) scaleX(1); }

.nav-toggle-k7q2 {
  display: none;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  align-items: center; justify-content: center; flex-direction: column; gap: 4px;
}
.nav-toggle-k7q2 span:not(.sr-only-k7q2) {
  width: 18px; height: 2px; background: var(--fg-0); border-radius: 2px;
  transition: transform var(--tr-fast), opacity var(--tr-fast);
}

.search-box-k7q2 {
  display: flex; align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  border-radius: 999px;
  padding: 4px 4px 4px 16px;
  width: 280px; max-width: 100%;
  transition: width var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.search-box-k7q2:focus-within {
  width: 340px;
  border-color: rgba(124,92,255,.6);
  box-shadow: 0 0 0 4px rgba(124,92,255,.2);
}
.search-input-k7q2 {
  flex: 1; min-width: 0; background: transparent; border: 0; outline: none;
  color: var(--fg-0); font-size: 14px; padding: 8px 4px;
}
.search-input-k7q2::placeholder { color: var(--fg-2); }
.search-btn-k7q2 {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--grad-1); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform var(--tr-fast);
}
.search-btn-k7q2:hover { transform: scale(1.08) rotate(8deg); }

/* ========== Main ========== */
.site-main-k7q2 { min-height: 60vh; padding-bottom: 80px; }

/* ========== Hero ========== */
.hero-k7q2 {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero-inner-k7q2 {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 50px;
  align-items: center;
}
.hero-eyebrow-k7q2 {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  font-size: 13px; color: var(--fg-1); margin-bottom: 18px;
}
.hero-eyebrow-k7q2 .dot-k7q2 {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0,229,255,.2);
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(0,229,255,.45); }
  50% { box-shadow: 0 0 0 8px rgba(0,229,255,0); }
}
.hero-title-k7q2 {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.2;
  margin: 0 0 18px;
  font-weight: 800;
}
.hero-title-k7q2 em {
  font-style: normal;
  background: var(--grad-1);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-desc-k7q2 {
  color: var(--fg-1); font-size: 16.5px; margin: 0 0 28px; max-width: 560px;
}
.hero-cta-k7q2 { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-k7q2 {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600; font-size: 14.5px;
  transition: transform var(--tr), box-shadow var(--tr), background var(--tr);
  border: 1px solid transparent;
}
.btn-primary-k7q2 {
  background: var(--grad-1); color: #fff;
  box-shadow: 0 10px 30px rgba(124,92,255,.45);
}
.btn-primary-k7q2:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(124,92,255,.55); color: #fff; }
.btn-ghost-k7q2 {
  background: var(--glass-bg); border-color: var(--glass-bd); color: var(--fg-0);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.btn-ghost-k7q2:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }

.hero-stats-k7q2 {
  margin-top: 36px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  max-width: 520px;
}
.stat-card-k7q2 {
  padding: 16px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.stat-num-k7q2 {
  font-size: 24px; font-weight: 800; background: var(--grad-1);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-lbl-k7q2 { font-size: 12.5px; color: var(--fg-2); }

.hero-art-k7q2 {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
}
.hero-art-k7q2 img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 8s ease;
}
.hero-art-k7q2:hover img { transform: scale(1.06); }
.hero-art-k7q2::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(11,11,26,.7));
}
.hero-art-tag-k7q2 {
  position: absolute; left: 18px; bottom: 18px; z-index: 2;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(11,11,26,.5);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-bd);
  font-size: 13px; color: var(--fg-0);
  display: inline-flex; align-items: center; gap: 8px;
}

/* ========== 面包屑 ========== */
.crumbs-k7q2 {
  padding: 14px 0;
  font-size: 13.5px; color: var(--fg-2);
}
.crumbs-k7q2 ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0; }
.crumbs-k7q2 li + li::before { content: "›"; margin-right: 6px; color: var(--fg-2); }
.crumbs-k7q2 a { color: var(--fg-1); }
.crumbs-k7q2 a:hover { color: var(--accent); }
.crumbs-k7q2 li[aria-current="page"] { color: var(--fg-0); }

/* ========== 通用区块 ========== */
.section-k7q2 { padding: 60px 0; }
.section-head-k7q2 {
  display: flex; align-items: end; justify-content: space-between; gap: 20px;
  margin-bottom: 30px; flex-wrap: wrap;
}
.section-title-k7q2 {
  font-size: clamp(22px, 2.4vw, 30px);
  margin: 0; font-weight: 800; line-height: 1.25;
}
.section-title-k7q2 small { display: block; font-size: 13px; font-weight: 500; color: var(--fg-2); margin-top: 8px; }
.section-link-k7q2 { color: var(--fg-1); font-size: 14px; }

/* ========== 视频卡片 (SEO 视频) ========== */
.video-grid-k7q2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 22px;
}
.video-card-k7q2 {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: var(--glass-shadow);
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.video-card-k7q2:hover {
  transform: translateY(-6px);
  border-color: rgba(124,92,255,.55);
  box-shadow: 0 20px 50px rgba(124,92,255,.35);
}
.video-thumb-k7q2 {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1d3a, #0b0b1a);
}
.video-thumb-k7q2 img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--tr-slow), filter var(--tr);
}
.video-card-k7q2:hover .video-thumb-k7q2 img { transform: scale(1.08); filter: brightness(.85); }
.video-mask-k7q2 {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, rgba(11,11,26,.0) 30%, rgba(11,11,26,.85));
  opacity: 0;
  transition: opacity var(--tr);
}
.video-card-k7q2:hover .video-mask-k7q2 { opacity: 1; }
.video-play-k7q2 {
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(255,255,255,.95);
  color: var(--bg-0);
  display: inline-flex; align-items: center; justify-content: center;
  transform: scale(.7);
  transition: transform var(--tr);
  box-shadow: 0 12px 30px rgba(0,0,0,.45);
}
.video-card-k7q2:hover .video-play-k7q2 { transform: scale(1); }
.video-play-k7q2 svg { margin-left: 4px; }
.video-duration-k7q2 {
  position: absolute; right: 10px; bottom: 10px;
  background: rgba(11,11,26,.78);
  color: #fff; font-size: 12px;
  padding: 3px 8px; border-radius: 6px;
  letter-spacing: .5px;
}
.video-tag-k7q2 {
  position: absolute; left: 10px; top: 10px;
  font-size: 12px; padding: 3px 10px;
  background: var(--grad-1); color: #fff;
  border-radius: 999px; font-weight: 600;
  box-shadow: 0 6px 16px rgba(124,92,255,.4);
}
.video-meta-k7q2 { padding: 16px 18px 18px; }
.video-title-k7q2 {
  margin: 0 0 6px; font-size: 16px; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-desc-k7q2 {
  margin: 0 0 12px; font-size: 13px; color: var(--fg-2); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-stats-k7q2 {
  display: flex; gap: 14px; font-size: 12.5px; color: var(--fg-2);
  border-top: 1px dashed rgba(255,255,255,.08); padding-top: 10px;
}
.video-stats-k7q2 span { display: inline-flex; align-items: center; gap: 4px; }
.video-stats-k7q2 svg { opacity: .7; }

/* ========== 专家卡片 ========== */
.expert-grid-k7q2 {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px;
}
.expert-card-k7q2 {
  padding: 24px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  text-align: center;
  transition: transform var(--tr);
}
.expert-card-k7q2:hover { transform: translateY(-4px); }
.expert-avatar-k7q2 {
  width: 96px; height: 96px; border-radius: 50%;
  margin: 0 auto 14px;
  padding: 3px; background: var(--grad-1);
  box-shadow: 0 10px 26px rgba(124,92,255,.45);
}
.expert-avatar-k7q2 img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; background: var(--bg-1); }
.expert-name-k7q2 { margin: 0 0 4px; font-size: 17px; font-weight: 700; }
.expert-title-k7q2 { margin: 0 0 6px; font-size: 13px; color: var(--accent); }
.expert-bio-k7q2 { margin: 0 0 16px; font-size: 13px; color: var(--fg-2); min-height: 42px; }
.btn-consult-k7q2 {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px;
  background: var(--grad-1); color: #fff; font-size: 13px; font-weight: 600;
  position: relative; overflow: hidden;
}
.btn-consult-k7q2::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.4), transparent 70%);
  transform: translateX(-100%);
  transition: transform .8s;
}
.btn-consult-k7q2:hover::before { transform: translateX(100%); }
.btn-consult-k7q2:hover { color: #fff; }

/* ========== 社区评价 ========== */
.review-grid-k7q2 {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px;
}
.review-card-k7q2 {
  padding: 22px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  position: relative;
  transition: transform var(--tr);
}
.review-card-k7q2:hover { transform: translateY(-4px); }
.review-card-k7q2::before {
  content: "“"; position: absolute; top: -10px; right: 18px;
  font-size: 80px; font-family: Georgia, serif;
  color: rgba(124,92,255,.25); line-height: 1;
}
.review-user-k7q2 {
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px;
}
.review-avatar-k7q2 {
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--grad-1); padding: 2px;
}
.review-avatar-k7q2 img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.review-name-k7q2 { font-size: 14px; font-weight: 600; margin: 0; }
.review-time-k7q2 { font-size: 12px; color: var(--fg-2); }
.review-stars-k7q2 { color: var(--warning); margin: 4px 0 8px; font-size: 14px; letter-spacing: 2px; }
.review-text-k7q2 { font-size: 14px; color: var(--fg-1); margin: 0; line-height: 1.7; }

/* ========== 联系我们 ========== */
.contact-wrap-k7q2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}
.contact-card-k7q2 {
  padding: 26px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.contact-card-k7q2 h3 { margin: 0 0 14px; font-size: 18px; }
.contact-list-k7q2 { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 14px; color: var(--fg-1); }
.contact-list-k7q2 strong { color: var(--fg-0); margin-right: 6px; }
.contact-photo-k7q2 {
  position: relative; border-radius: var(--radius-md); overflow: hidden;
  margin-top: 18px; aspect-ratio: 16/9;
}
.contact-photo-k7q2 img { width: 100%; height: 100%; object-fit: cover; }
.qr-grid-k7q2 {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px;
}
.qr-item-k7q2 {
  text-align: center; padding: 12px;
  background: rgba(255,255,255,.04); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-sm); font-size: 12px; color: var(--fg-2);
}
.qr-item-k7q2 img { width: 100%; aspect-ratio: 1/1; border-radius: 8px; margin-bottom: 6px; object-fit: cover; }

/* ========== FAQ ========== */
.faq-list-k7q2 {
  display: grid; gap: 12px; margin-top: 20px;
}
.faq-item-k7q2 {
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  padding: 4px 22px;
  transition: border-color var(--tr);
}
.faq-item-k7q2[open] { border-color: rgba(124,92,255,.55); }
.faq-item-k7q2 summary {
  list-style: none;
  padding: 16px 30px 16px 0;
  cursor: pointer;
  font-weight: 600; font-size: 15.5px;
  position: relative;
  outline: none;
  user-select: none;
}
.faq-item-k7q2 summary::-webkit-details-marker { display: none; }
.faq-item-k7q2 summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--grad-1); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 600; line-height: 1;
  transition: transform var(--tr);
}
.faq-item-k7q2[open] summary::after { content: "–"; transform: translateY(-50%) rotate(180deg); }
.faq-body-k7q2 {
  padding: 0 0 16px; color: var(--fg-1); font-size: 14.5px; line-height: 1.8;
  animation: faqOpen var(--tr) ease both;
}
@keyframes faqOpen {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ========== Footer ========== */
.site-footer-k7q2 {
  margin-top: 40px;
  background: rgba(11,11,26,.65);
  border-top: 1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  color: var(--fg-1);
  padding: 50px 0 20px;
}
.footer-grid-k7q2 {
  display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1fr; gap: 40px;
}
.footer-title-k7q2 { font-size: 15px; color: var(--fg-0); margin: 0 0 14px; font-weight: 700; }
.footer-list-k7q2 { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14px; }
.footer-list-k7q2 a { color: var(--fg-1); }
.footer-list-k7q2 a:hover { color: var(--accent); }
.footer-desc-k7q2 { font-size: 13.5px; line-height: 1.8; margin: 0 0 12px; }
.footer-meta-k7q2 { font-size: 12.5px; color: var(--fg-2); margin: 8px 0 0; }
.share-bar-k7q2 { display: flex; gap: 10px; margin-bottom: 14px; }
.share-btn-k7q2 {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--fg-1); transition: transform var(--tr-fast), background var(--tr-fast), color var(--tr-fast);
}
.share-btn-k7q2:hover { transform: translateY(-3px); background: var(--grad-1); color: #fff; border-color: transparent; }
.footer-bar-k7q2 {
  margin-top: 30px; padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.06);
  text-align: center; font-size: 12.5px; color: var(--fg-2);
}

/* ========== 回到顶部 ========== */
.back-to-top-k7q2 {
  position: fixed; right: 22px; bottom: 24px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad-1); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 26px rgba(124,92,255,.5);
  transition: transform var(--tr), opacity var(--tr);
}
.back-to-top-k7q2:hover { transform: translateY(-4px) scale(1.05); }
.back-to-top-k7q2[hidden] { display: none; }

/* ========== 子页面通用 ========== */
.page-hero-k7q2 {
  padding: 60px 0 30px;
}
.page-title-k7q2 {
  font-size: clamp(26px, 3.4vw, 38px);
  margin: 0 0 12px; font-weight: 800;
}
.page-subtitle-k7q2 {
  color: var(--fg-1); max-width: 760px; margin: 0; font-size: 16px; line-height: 1.7;
}
.prose-k7q2 {
  font-size: 15.5px; line-height: 1.85; color: var(--fg-1);
}
.prose-k7q2 h2 {
  margin: 36px 0 14px; font-size: 22px; color: var(--fg-0);
  position: relative; padding-left: 14px;
}
.prose-k7q2 h2::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 22px; border-radius: 2px; background: var(--grad-1);
}
.prose-k7q2 h3 { margin: 24px 0 10px; font-size: 17px; color: var(--fg-0); }
.prose-k7q2 p { margin: 0 0 14px; }
.prose-k7q2 ul, .prose-k7q2 ol { padding-left: 22px; margin: 0 0 14px; }
.prose-k7q2 li { margin-bottom: 6px; }
.glass-panel-k7q2 {
  padding: 30px;
  background: var(--glass-bg); border: 1px solid var(--glass-bd);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-inner-k7q2 { grid-template-columns: 1fr; }
  .footer-grid-k7q2 { grid-template-columns: 1fr 1fr; gap: 28px; }
  .contact-wrap-k7q2 { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .header-inner-k7q2 { gap: 12px; }
  .nav-toggle-k7q2 { display: inline-flex; }
  .main-nav-k7q2 {
    position: fixed; inset: var(--header-h) 0 auto 0;
    background: rgba(11,11,26,.92);
    -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 14px 18px;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform var(--tr), opacity var(--tr);
  }
  .main-nav-k7q2.is-open-k7q2 { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-list-k7q2 { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-link-k7q2 { display: block; text-align: center; padding: 12px; border-radius: 12px; }
  .search-box-k7q2 { width: 160px; }
  .search-box-k7q2:focus-within { width: 200px; }
  .footer-grid-k7q2 { grid-template-columns: 1fr; }
  .hero-stats-k7q2 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .hero-k7q2 { padding: 50px 0 30px; }
  .section-k7q2 { padding: 40px 0; }
  .brand-text-k7q2 { display: none; }
  .search-box-k7q2 { width: 140px; padding-left: 12px; }
  .hero-stats-k7q2 { grid-template-columns: 1fr 1fr; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}