:root {
  --ink: #10162f;
  --muted: #5e6b8b;
  --blue: #1a73ff;
  --cyan: #15d5ff;
  --violet: #8057ff;
  --green: #22c58b;
  --bg: #f6f8ff;
  --line: rgba(20, 35, 80, .12);
  --shadow: 0 18px 46px rgba(28, 63, 130, .14);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.86); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.header-inner { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; color: #14245a; }
.brand img { width: 156px; height: 44px; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 24px; font-size: 15px; color: #273252; }
.site-nav a:hover, .site-nav a.active { color: var(--blue); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 0; border-radius: 10px; background: #eef3ff; }
.nav-toggle span { display: block; height: 2px; width: 20px; background: #1f2c56; margin: 5px auto; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: 999px; font-weight: 700; border: 1px solid transparent; transition: .2s ease; white-space: nowrap; }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--blue), var(--violet)); box-shadow: 0 14px 28px rgba(79, 91, 255, .26); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(79, 91, 255, .32); }
.btn-ghost { color: #1a54c7; background: #fff; border-color: rgba(26, 115, 255, .22); }
.hero { position: relative; overflow: hidden; padding: 86px 0 64px; background: radial-gradient(circle at 16% 12%, rgba(21,213,255,.24), transparent 26%), radial-gradient(circle at 86% 14%, rgba(128,87,255,.24), transparent 28%), linear-gradient(180deg, #eef4ff, #f9fbff); }
.hero:before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(26,115,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(26,115,255,.08) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(180deg, #000, transparent); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr .95fr; align-items: center; gap: 44px; }
.eyebrow { color: var(--blue); font-weight: 800; letter-spacing: 0; margin-bottom: 12px; }
h1 { font-size: clamp(34px, 5vw, 58px); line-height: 1.15; margin: 0 0 20px; letter-spacing: 0; }
.lead { font-size: 18px; color: #4d5c82; margin: 0 0 28px; }
.hero-actions, .section-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.72); }
.section { padding: 76px 0; }
.section.alt { background: #fff; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { text-align: center; margin: 0 auto 38px; }
h2 { font-size: clamp(26px, 3.3vw, 40px); line-height: 1.22; margin: 0 0 12px; }
h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.35; }
.section-head p, .card p, .news-card p, .plain p, .article-body p { color: var(--muted); margin: 0; }
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: rgba(255,255,255,.92); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: 0 12px 28px rgba(46, 78, 145, .08); }
.icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 16px; color: #fff; font-weight: 900; background: linear-gradient(135deg, var(--cyan), var(--violet)); }
.media-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); }
.media-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.media-card div { padding: 18px; }
.steps { counter-reset: step; }
.step { position: relative; padding-left: 72px; }
.step:before { counter-increment: step; content: "0" counter(step); position: absolute; left: 22px; top: 24px; width: 38px; height: 38px; border-radius: 14px; display: grid; place-items: center; color: #fff; font-weight: 800; background: linear-gradient(135deg, var(--blue), var(--green)); }
.advantage { background: linear-gradient(135deg, #101a48, #122b72 52%, #40248d); color: #fff; position: relative; overflow: hidden; }
.advantage .section-head p, .advantage .card p { color: rgba(255,255,255,.76); }
.advantage .card { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.16); box-shadow: none; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; box-shadow: 0 12px 30px rgba(46, 78, 145, .09); display: flex; flex-direction: column; }
.news-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.news-card .news-content { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.text-link { color: var(--blue); font-weight: 800; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.faq-item button { width: 100%; text-align: left; border: 0; background: transparent; padding: 18px 22px; font: inherit; font-weight: 800; color: var(--ink); cursor: pointer; }
.faq-item p { display: none; color: var(--muted); margin: 0; padding: 0 22px 20px; }
.faq-item.active p { display: block; }
.page-hero { padding: 74px 0 44px; color: #fff; background: radial-gradient(circle at 20% 15%, rgba(21,213,255,.34), transparent 28%), linear-gradient(135deg, #0d1a45, #243c91 58%, #6d3cff); }
.page-hero p { max-width: 760px; color: rgba(255,255,255,.8); margin: 0; }
.split { display: grid; grid-template-columns: .95fr 1fr; gap: 34px; align-items: center; }
.plain { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 30px; box-shadow: var(--shadow); }
.article { background: #fff; }
.article-wrap { max-width: 900px; margin: 0 auto; }
.article-cover { border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); margin: 28px 0; }
.article-cover img { width: 100%; aspect-ratio: 16/8; object-fit: cover; }
.article-body p { margin: 0 0 18px; }
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 34px 0; }
.article-nav a, .related a { display: block; padding: 16px; border-radius: 14px; background: #f4f7ff; border: 1px solid var(--line); color: #1b3d8e; font-weight: 700; }
.related { display: grid; gap: 12px; margin-top: 16px; }
.download-panel { text-align: center; max-width: 760px; margin: 0 auto; }
.download-panel .badge { display: inline-flex; padding: 7px 12px; border-radius: 999px; background: #eef5ff; color: var(--blue); font-weight: 800; margin-bottom: 18px; }
.redirect-body { min-height: 100vh; background: #081533; overflow-x: hidden; }
.redirect-page { min-height: 100vh; display: grid; place-items: center; padding: 28px; background: radial-gradient(circle at 18% 18%, rgba(21,213,255,.28), transparent 28%), radial-gradient(circle at 82% 78%, rgba(128,87,255,.34), transparent 30%), linear-gradient(135deg, #0b2a55 0%, #15256d 52%, #5b36e8 100%); position: relative; }
.redirect-page:before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(circle at center, #000 0 45%, transparent 78%); }
.redirect-page:after { content: ""; position: absolute; width: min(780px, 78vw); height: min(780px, 78vw); border: 1px solid rgba(255,255,255,.15); border-radius: 999px; box-shadow: inset 0 0 70px rgba(21,213,255,.12), 0 0 90px rgba(128,87,255,.25); }
.redirect-shell { position: relative; z-index: 1; width: min(920px, 100%); }
.redirect-card { overflow: hidden; position: relative; padding: clamp(28px, 5vw, 54px); border-radius: 28px; background: rgba(255,255,255,.92); border: 1px solid rgba(255,255,255,.72); box-shadow: 0 34px 90px rgba(3, 13, 40, .34); text-align: center; backdrop-filter: blur(18px); }
.redirect-card:before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 12% 8%, rgba(21,213,255,.14), transparent 24%), radial-gradient(circle at 90% 12%, rgba(128,87,255,.13), transparent 25%); pointer-events: none; }
.redirect-card > * { position: relative; z-index: 1; }
.redirect-brand { display: flex; justify-content: center; margin-bottom: 18px; }
.redirect-brand img { width: 176px; height: 50px; object-fit: contain; }
.redirect-status { display: inline-flex; align-items: center; gap: 9px; padding: 8px 14px; border-radius: 999px; color: #1957c8; background: rgba(26,115,255,.1); border: 1px solid rgba(26,115,255,.16); font-weight: 800; margin-bottom: 18px; }
.pulse-dot { width: 9px; height: 9px; border-radius: 50%; background: #22c58b; box-shadow: 0 0 0 7px rgba(34,197,139,.16); }
.redirect-card h1 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 14px; }
.redirect-card p { max-width: 640px; margin: 0 auto; color: #5a6685; font-size: 17px; }
.redirect-card p strong { color: var(--blue); font-size: 1.25em; }
.redirect-progress { width: min(460px, 100%); height: 9px; margin: 28px auto 26px; border-radius: 999px; background: #e8efff; overflow: hidden; }
.redirect-progress span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet)); animation: redirectLoading 3s linear forwards; }
.redirect-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.redirect-tips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 30px; text-align: left; }
.redirect-tips div { padding: 16px; border-radius: 16px; background: rgba(244,247,255,.86); border: 1px solid rgba(26,115,255,.12); }
.redirect-tips b, .redirect-tips span { display: block; }
.redirect-tips b { color: #18265b; margin-bottom: 4px; }
.redirect-tips span { color: #64708e; font-size: 14px; line-height: 1.55; }
@keyframes redirectLoading { from { width: 0; } to { width: 100%; } }
.site-footer { background: #0c1432; color: rgba(255,255,255,.76); padding: 46px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 28px; align-items: start; }
.footer-logo { width: 158px; height: 44px; object-fit: contain; margin-bottom: 14px; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-links a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding-top: 20px; font-size: 14px; text-align: center; }
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 76px; left: 0; right: 0; display: none; flex-direction: column; align-items: flex-start; gap: 0; padding: 12px 24px 24px; background: #fff; border-bottom: 1px solid var(--line); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 0; width: 100%; }
  .header-cta { display: none; }
  .hero-grid, .split { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .container { width: min(100% - 22px, 1180px); }
  .header-inner { height: 66px; }
  .brand img { width: 132px; }
  .site-nav { top: 66px; }
  .hero, .section { padding: 48px 0; }
  .grid-3, .grid-4, .article-nav, .footer-grid { grid-template-columns: 1fr; }
  .redirect-page { padding: 18px; }
  .redirect-card { border-radius: 22px; }
  .redirect-tips { grid-template-columns: 1fr; }
  .card, .plain { padding: 20px; }
  .step { padding-left: 20px; padding-top: 58px; }
  .step:before { left: 20px; top: 18px; }
}