/*
  Design Note: 本样式文件严格遵循“新未来竞技写实主义”，以夜幕蓝黑、枪火铜橙、战术雾灰构建电竞工业感；
  所有版式优先采用横向叙事、错位层级、视频频道感和真实履历感，避免普通居中营销页的松散感。
*/
:root {
  --bg: #07111d;
  --bg-soft: #0c1828;
  --panel: rgba(15, 27, 43, 0.88);
  --panel-strong: rgba(10, 19, 34, 0.96);
  --line: rgba(126, 159, 196, 0.24);
  --text: #eef3fb;
  --muted: #9eb0c8;
  --accent: #d88a47;
  --accent-2: #5fd1ff;
  --accent-3: #f7c38f;
  --shadow: 0 24px 60px rgba(2, 10, 18, 0.42);
  --radius: 20px;
  --radius-sm: 14px;
  --shell: min(1180px, calc(100vw - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(95,209,255,0.08), transparent 24%),
    radial-gradient(circle at right 10%, rgba(216,138,71,0.12), transparent 22%),
    linear-gradient(180deg, #07111d 0%, #091726 48%, #060d18 100%);
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.shell { width: var(--shell); margin: 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(7,17,29,0.96) 0%, rgba(7,17,29,0.82) 100%);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 0 12px;
}
.brandmark {
  display: inline-flex; align-items: center; gap: 12px;
}
.brandmark-icon,
.brandmark-logo {
  border-radius: 12px;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.brandmark-text {
  display: inline-flex; flex-direction: column; gap: 4px;
}
.brandmark-text strong {
  font-family: "Georgia", "Songti SC", serif;
  font-size: 1.25rem; letter-spacing: 0.08em;
}
.brandmark-text small {
  color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase;
}
.main-nav {
  display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px;
}
.nav-link {
  padding: 10px 14px; border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: 220ms ease;
}
.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
  border-color: rgba(216,138,71,0.35);
  background: rgba(216,138,71,0.12);
}
.search-strip {
  display: grid; gap: 8px;
  padding: 0 0 14px;
}
.fake-search {
  display: grid; grid-template-columns: 1fr auto;
  border: 1px solid rgba(216,138,71,0.24);
  background: rgba(6, 16, 28, 0.75);
  border-radius: 999px; overflow: hidden;
}
.fake-search input {
  background: transparent; border: 0; color: var(--text); padding: 14px 18px;
}
.fake-search input::placeholder { color: rgba(238,243,251,0.55); }
.fake-search button {
  border: 0; background: linear-gradient(135deg, #d88a47, #bb6733); color: white;
  padding: 0 20px; min-width: 176px;
}
.search-feedback,
.share-feedback {
  margin: 0; font-size: 0.94rem; color: var(--muted);
}
.hero {
  position: relative; min-height: 86vh; overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.hero-media {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 10, 18, 0.88) 0%, rgba(3, 10, 18, 0.55) 44%, rgba(3, 10, 18, 0.68) 100%),
    linear-gradient(180deg, rgba(3,10,18,0.1) 0%, rgba(3,10,18,0.4) 100%);
}
.hero-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; justify-content: center;
  min-height: 86vh; padding: 96px 0 72px;
  max-width: 760px;
}
.hero-kicker,
.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.hero h1,
.section-heading h2,
.inner-hero h1 {
  margin: 0;
  font-family: "Georgia", "Noto Serif SC", "Songti SC", serif;
  font-weight: 700;
  line-height: 1.12;
}
.hero h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); }
.hero-summary,
.lead,
.section-heading p,
.inner-hero p { color: #d4ddec; }
.hero-actions,
.expert-actions,
.share-grid {
  display: flex; flex-wrap: wrap; gap: 12px;
}
.hero-actions { margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: 220ms ease;
}
.btn-primary {
  background: linear-gradient(135deg, #e39a58, #b35f2e); color: #fff;
  box-shadow: 0 20px 40px rgba(179,95,46,0.26);
}
.btn-secondary,
.btn-inline {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}
.btn-inline.ghost { background: transparent; }
.btn:hover,
.share-btn:hover,
.play-chip:hover { transform: translateY(-2px); }
.hero-stats {
  margin-top: 26px;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px;
}
.hero-stats article,
.metric-stack article,
.info-card,
.expert-card,
.review-card,
.step-card,
.faq-card,
.contact-zone,
.inner-hero,
.video-card,
.json-box,
.footer-widget {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}
.hero-stats article { padding: 18px; }
.hero-stats strong {
  display: block; font-size: 2rem; color: var(--accent-3); line-height: 1;
}
.hero-tags,
.tag-cloud,
.logo-wall,
.footer-contactlist,
.contact-list {
  list-style: none; padding: 0; margin: 0;
}
.hero-tags {
  margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px;
}
.hero-tags li,
.tag-cloud span,
.logo-wall span {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(10, 19, 34, 0.55);
  color: #d6e2f6;
}
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding: 18px 0 6px; color: var(--muted); font-size: 0.94rem;
}
.breadcrumb em { font-style: normal; opacity: 0.7; }
.section { padding: 64px 0; }
.section-dark {
  background: linear-gradient(180deg, rgba(6,13,24,0.92) 0%, rgba(9,20,35,0.98) 100%);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.section-heading { max-width: 760px; margin-bottom: 26px; }
.section-heading-center { text-align: center; margin-left: auto; margin-right: auto; }
.intro-grid,
.mixed-showcase,
.ai-zone,
.contact-zone,
.reviews-share-grid,
.footer-grid,
.about-contact-inline {
  display: grid; gap: 26px;
}
.intro-grid { grid-template-columns: 1.6fr 0.8fr; align-items: start; }
.metric-stack { display: grid; gap: 14px; }
.metric-stack article { padding: 20px; }
.metric-stack strong { display: block; margin-top: 8px; }
.card-grid { display: grid; gap: 18px; }
.card-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card,
.expert-card,
.review-card,
.step-card,
.faq-card { padding: 22px; }
.info-card h3,
.expert-card h3,
.review-card h3,
.step-card h3,
.faq-card h3,
.video-copy h3 { margin-top: 0; margin-bottom: 10px; }
.info-card.compact { min-height: 100%; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.video-card {
  overflow: hidden;
  transform: translateZ(0);
  transition: 220ms ease;
}
.video-card:hover { transform: translateY(-4px); }
.video-poster {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
}
.video-poster img {
  width: 100%; height: 100%; object-fit: cover; transition: 280ms ease;
}
.video-card:hover .video-poster img { transform: scale(1.04); }
.play-chip {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%) scale(0.92);
  min-width: 132px; min-height: 46px;
  border-radius: 999px; border: 1px solid rgba(255,255,255,0.14);
  background: rgba(6, 16, 28, 0.74); color: #fff; opacity: 0;
  box-shadow: 0 12px 28px rgba(0,0,0,0.35); transition: 220ms ease;
}
.video-card.is-hovered .play-chip,
.video-card:hover .play-chip { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-copy { padding: 18px; }
.video-tag {
  display: inline-flex; margin-bottom: 10px; color: var(--accent-2);
  border-bottom: 1px solid rgba(95, 209, 255, 0.3);
}
.video-stats {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px;
  color: var(--muted); font-size: 0.92rem;
}
.mixed-showcase,
.ai-zone,
.contact-zone,
.reviews-share-grid,
.footer-grid,
.about-contact-inline {
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
.showcase-visual img,
.ai-visual img,
.contact-visual img,
.inner-hero img {
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.08);
}
.timeline-list { display: grid; gap: 16px; }
.timeline-list article {
  padding: 18px 22px;
  border-left: 3px solid rgba(216,138,71,0.65);
  background: rgba(255,255,255,0.03);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.experts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.logo-wall {
  display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px;
}
.howto-grid,
.faq-grid,
.review-list,
.footer-qrs { display: grid; gap: 18px; }
.howto-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 18px; }
.faq-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step-card em {
  display: inline-block; margin-bottom: 12px; color: var(--accent-3);
  font-style: normal; letter-spacing: 0.14em;
}
.contact-list li,
.footer-contactlist li {
  padding: 10px 0; border-bottom: 1px dashed rgba(255,255,255,0.1);
}
.review-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.share-grid { margin: 18px 0 12px; }
.share-btn {
  min-height: 46px; padding: 0 18px; border-radius: 999px;
  border: 1px solid rgba(216,138,71,0.24);
  background: rgba(216,138,71,0.12); color: var(--text);
}
.json-box { margin-top: 22px; padding: 18px 20px; }
.json-box summary { cursor: pointer; color: var(--accent-2); }
.json-box pre {
  margin: 16px 0 0; white-space: pre-wrap; word-break: break-word; overflow: auto;
  color: #d2def1; font-size: 0.9rem;
}
.inner-main { padding-bottom: 40px; }
.inner-hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px;
  padding: 26px; margin-top: 20px; align-items: center;
}
.inner-hero-video { background: linear-gradient(135deg, rgba(8,18,31,0.95), rgba(12,24,40,0.92)); }
.inner-hero-light { background: linear-gradient(135deg, rgba(12,28,42,0.9), rgba(15,32,48,0.92)); }
.compact-section { padding: 34px 0; }
.footer-grid {
  padding: 44px 0 24px;
  grid-template-columns: 1.15fr 0.95fr 0.9fr;
  align-items: start;
}
.footer-brandhead {
  display: flex; align-items: center; gap: 14px; margin-bottom: 14px;
}
.footer-qrs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.footer-qrs figure {
  margin: 0; text-align: center; padding: 14px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
}
.footer-qrs figcaption { margin-top: 10px; color: var(--muted); font-size: 0.9rem; }
.code-sample {
  margin: 14px 0 18px; padding: 16px; overflow: auto;
  border-radius: var(--radius-sm); background: rgba(0,0,0,0.26);
  color: #d0f1ff;
}
.footer-bar {
  padding: 16px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--muted); font-size: 0.92rem;
}
.contact-visual figcaption {
  margin-top: 12px; color: var(--muted); font-size: 0.92rem;
}
@media (max-width: 1120px) {
  .hero-stats,
  .card-grid-3,
  .card-grid-4,
  .video-grid,
  .howto-grid,
  .faq-grid,
  .footer-qrs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .intro-grid,
  .mixed-showcase,
  .ai-zone,
  .contact-zone,
  .reviews-share-grid,
  .footer-grid,
  .about-contact-inline,
  .inner-hero { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  :root { --shell: min(100vw - 24px, 100%); }
  .topbar { align-items: flex-start; flex-direction: column; }
  .main-nav { justify-content: flex-start; }
  .fake-search { grid-template-columns: 1fr; border-radius: 18px; }
  .fake-search button { min-height: 50px; }
  .hero { min-height: auto; }
  .hero-content { min-height: auto; padding: 112px 0 54px; }
  .hero-stats,
  .card-grid-2,
  .card-grid-3,
  .card-grid-4,
  .video-grid,
  .experts-grid,
  .howto-grid,
  .faq-grid,
  .review-list,
  .footer-qrs { grid-template-columns: 1fr; }
  .section { padding: 46px 0; }
  .hero h1 { font-size: 2.25rem; }
  .footer-bar { padding-bottom: 24px; }
}