@charset "UTF-8";
:root { --ink:#132139; --muted:#65748b; --blue:#2456d9; --blue-dark:#1744b2; --line:#e3e9f2; --wash:#f4f7fd; --pale:#edf3ff; --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:114px; }
body { margin:0; background:#fff; color:var(--ink); font-family:var(--sans); font-size:16px; line-height:1.75; -webkit-font-smoothing:antialiased; }
a { color:inherit; text-decoration:none; }
button { font:inherit; cursor:pointer; }
button:disabled { cursor:not-allowed; }
h1,h2,h3,p,figure { margin:0; }
img { display:block; width:100%; height:auto; }
button:focus-visible,a:focus-visible,summary:focus-visible { outline:3px solid #89a6ff; outline-offset:5px; }
.container { width:min(1200px, calc(100% - 72px)); margin-inline:auto; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.skip-link { position:fixed; z-index:100; left:20px; top:-70px; padding:12px 20px; background:var(--blue); color:white; border-radius:5px; }
.skip-link:focus { top:10px; }
.site-header { position:sticky; top:0; z-index:50; background:rgba(255,255,255,.97); border-bottom:1px solid var(--line); }
.header-inner { min-height:85px; display:flex; align-items:center; justify-content:space-between; gap:28px; }
.brand { display:flex; align-items:center; gap:12px; font-size:18px; line-height:1.4; font-weight:650; white-space:nowrap; }
.brand-symbol { width:34px; height:38px; display:block; color:var(--blue); }
.brand-symbol svg { width:100%; height:100%; }
.brand small { display:block; color:#8090ac; font-size:8px; line-height:1.3; letter-spacing:1.6px; font-weight:500; margin-top:5px; }
.main-nav { display:flex; align-items:center; gap:22px; }
.main-nav a { color:#687990; font-size:12px; line-height:1.4; white-space:nowrap; padding:33px 0; border-bottom:2px solid transparent; }
.main-nav a:hover,.main-nav a[aria-current] { color:var(--blue); }
.main-nav a[aria-current] { border-bottom-color:var(--blue); }
.header-actions { display:flex; align-items:center; gap:18px; }
.registration-cta { white-space:nowrap; background:#f6f8fc; color:#8493aa; border:1px solid #dce4f0; padding:9px 13px; border-radius:6px; font-size:11px; opacity:.8; }
.menu-toggle { display:none; border:0; background:transparent; padding:7px 0 7px 7px; width:29px; }
.menu-toggle span { display:block; height:1.5px; margin:4px 0; background:var(--ink); width:22px; }
.hero { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr); gap:50px; align-items:center; padding-top:73px; padding-bottom:69px; }
.eyebrow { display:block; font-size:11px; line-height:1.7; letter-spacing:1.4px; font-weight:550; color:var(--blue); }
.blue-dot { display:inline-block; width:6px; height:6px; border-radius:50%; background:var(--blue); margin-right:9px; vertical-align:2px; }
h1 { font-size:clamp(38px,3.5vw,54px); line-height:1.35; font-weight:650; letter-spacing:-.06em; }
.hero h1 { margin-top:22px; }
.hero h1 span { color:var(--blue); }
.hero-copy > p { color:var(--muted); font-size:14px; line-height:1.95; margin-top:24px; max-width:550px; }
.hero-actions { display:flex; flex-wrap:wrap; align-items:center; gap:24px; margin-top:31px; }
.button { display:inline-flex; align-items:center; justify-content:space-between; gap:25px; padding:13px 21px; border-radius:6px; font-size:12px; font-weight:550; line-height:1.5; }
.button.primary { background:var(--blue); color:#fff; }
.button.primary:hover { background:var(--blue-dark); }
.button span { font-size:18px; }
.text-link { color:var(--blue); font-size:12px; font-weight:500; }
.text-link:hover { text-decoration:underline; text-underline-offset:4px; }
.hero-caption { display:flex; flex-wrap:wrap; gap:17px; color:#91a0b6; font-size:10px; margin-top:24px; }
.hero-caption span { display:flex; align-items:center; gap:6px; }
.hero-caption span::before { content:""; width:3px; height:3px; border-radius:50%; background:#a8bce3; }
.hero-art { background:linear-gradient(145deg,#f8faff,#edf3ff); padding:23px 20px 15px; border:1px solid #e3ebfa; border-radius:14px; }
.hero-art figcaption { color:#92a1b9; font-size:9px; text-align:center; padding-top:8px; }
.section { padding-top:58px; padding-bottom:58px; }
.section-heading { display:flex; justify-content:space-between; align-items:flex-end; gap:30px; margin-bottom:27px; }
h2 { font-size:30px; font-weight:600; letter-spacing:-.045em; line-height:1.45; }
.section-heading h2 { margin-top:9px; }
.section-heading > p { color:#8c99ae; font-size:11px; padding-bottom:6px; }
#choose { border-top:1px solid var(--line); }
.issue-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.issue-card { position:relative; display:flex; flex-direction:column; padding:26px 27px 20px; border:1px solid #e0e7f2; border-radius:9px; min-height:272px; transition:transform .18s,border-color .18s,box-shadow .18s; background:white; }
.issue-card:hover { border-color:#97b2f8; box-shadow:0 9px 24px #192f6a08; transform:translateY(-3px); }
.issue-tag { color:#617baf; font-size:10px; line-height:1.3; display:block; }
.issue-symbol { position:absolute; top:20px; right:25px; font-size:27px; color:#dbe5f7; font-weight:450; letter-spacing:-.02em; }
.issue-card h3 { font-size:20px; line-height:1.5; font-weight:600; letter-spacing:-.025em; margin-top:19px; }
.issue-card > p { color:#7c8ba2; font-size:12px; line-height:1.9; margin-top:13px; max-width:300px; }
.card-bottom { display:flex; align-items:center; justify-content:space-between; color:#5376bd; font-size:11px; margin-top:auto; padding-top:24px; }
.card-bottom span { font-size:19px; }
.priority-card { background:#f2f6ff; border-color:#cfddfb; }
.priority-card .issue-tag { color:var(--blue); }
.issue-note { padding:27px 28px 22px; background:#f7f9fc; border-radius:9px; }
.outline-shield { display:block; font-size:24px; color:#8da2c9; line-height:1.4; }
.issue-note h3 { font-size:18px; font-weight:500; line-height:1.65; margin-top:9px; color:#4d6285; }
.issue-note p { font-size:12px; color:#8b9ab0; line-height:1.9; margin-top:12px; }
.issue-note a { display:inline-block; margin-top:21px; font-size:11px; }
.route-section { padding:52px 0 56px; background:#f5f8fe; border-top:1px solid #e7edf7; border-bottom:1px solid #e7edf7; }
.reading-route { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:42px; margin-top:35px; }
.reading-route > div { position:relative; padding-left:52px; }
.reading-route > div > span { position:absolute; left:0; top:0; display:flex; align-items:center; justify-content:center; width:34px; height:34px; background:white; border:1px solid #ccdafa; border-radius:50%; color:#6688d8; font-size:13px; }
.reading-route h3 { font-size:16px; font-weight:550; }
.reading-route p { font-size:12px; color:#8090a8; line-height:1.95; margin-top:10px; }
.faq-layout { display:grid; grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr); gap:75px; }
.faq-layout h2 { margin-top:11px; }
.faq-layout .muted { color:#8b99ae; font-size:12px; line-height:1.9; margin-top:20px; max-width:290px; }
.faq-list { border-top:1px solid var(--line); }
.faq-list details { border-bottom:1px solid var(--line); padding:21px 0; }
.faq-list summary { cursor:pointer; display:flex; justify-content:space-between; gap:20px; font-size:14px; font-weight:550; list-style:none; }
.faq-list summary::-webkit-details-marker { display:none; }
.faq-list summary > span { color:#7590c4; font-size:20px; font-weight:350; line-height:1.3; }
.faq-list details[open] summary > span { transform:rotate(45deg); }
.faq-list details > p { color:#7d8ca4; font-size:13px; margin-top:16px; line-height:1.95; }
.faq-list details > a { display:inline-block; font-size:11px; color:var(--blue); margin-top:15px; }
.support-banner { display:flex; align-items:center; justify-content:space-between; gap:40px; padding:34px 38px; background:#edf3ff; border:1px solid #dae5fb; border-radius:9px; }
.support-banner h2 { font-size:23px; margin-top:9px; }
.support-banner p { font-size:12px; line-height:1.9; color:#8091ad; margin-top:11px; }
.support-banner .button { flex-shrink:0; }
.sources { padding-top:27px; margin-top:40px; border-top:1px solid var(--line); }
.sources h2 { font-size:20px; margin-top:7px; }
.sources > p { font-size:11px; color:#91a0b3; line-height:1.95; margin-top:10px; }
.sources ul { list-style:none; padding:0; margin:14px 0 0; display:flex; gap:10px 23px; flex-wrap:wrap; }
.sources a { color:#6382bf; font-size:11px; text-decoration:underline; text-decoration-color:#c1d1ee; text-underline-offset:4px; }
.site-footer { background:#f7f9fc; border-top:1px solid var(--line); margin-top:66px; padding:36px 0 24px; }
.footer-top { display:flex; align-items:center; gap:29px; border-bottom:1px solid #e0e7f1; padding-bottom:22px; }
.footer-brand { font-size:18px; font-weight:600; letter-spacing:-.03em; }
.footer-top p { font-size:11px; color:#8d9aae; }
.footer-top > a:last-child { margin-left:auto; color:#768baa; font-size:11px; white-space:nowrap; }
.footer-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:37px; margin-top:26px; }
.footer-grid h2 { font-size:12px; font-weight:500; color:#647795; }
.footer-grid p { color:#8c9ab0; font-size:11px; line-height:1.95; margin-top:10px; }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; gap:20px; border-top:1px solid #e5ebf4; margin-top:25px; padding-top:19px; color:#9ca8ba; font-size:10px; }
.footer-bottom > div { display:flex; gap:22px; color:#8396b3; }
.guide { padding-top:27px; }
.guide-header { max-width:960px; }
.back-link { display:inline-block; font-size:11px; color:#8799b5; margin-bottom:35px; }
.guide-header h1 { margin-top:18px; font-size:clamp(31px,3.3vw,47px); }
.guide-header > p { font-size:15px; color:#74859e; line-height:1.95; margin-top:23px; max-width:900px; }
.guide-meta { display:flex; gap:21px; flex-wrap:wrap; color:#92a1b6; font-size:10px; margin-top:20px; }
.guide-intro { display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr); gap:24px; margin-top:34px; }
.guide-intro figure { border:1px solid #e1e9f7; border-radius:9px; background:#f5f8ff; overflow:hidden; padding:0 18px 13px; }
.guide-intro img { height:270px; object-fit:contain; }
.guide-intro figcaption { color:#98a8c1; font-size:9px; text-align:center; }
.prepare-card { background:#f8faff; border:1px solid #e2eaf8; border-radius:9px; padding:30px; }
.prepare-card h2 { font-size:23px; margin-top:10px; }
.prepare-card ul { margin:20px 0 0; padding-left:17px; color:#7286a6; font-size:12px; line-height:1.8; }
.prepare-card li { padding-left:3px; margin-top:10px; }
.prepare-card li::marker { color:#a7bce0; }
.prepare-card > p { font-size:10px; color:#96a6bf; margin-top:20px; border-top:1px solid #e1eaf9; padding-top:14px; }
.stage-nav { display:flex; align-items:center; flex-wrap:wrap; gap:11px 25px; margin-top:30px; padding:18px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.stage-nav a { font-size:11px; color:#7c90b0; display:flex; gap:8px; align-items:center; }
.stage-nav a > span { color:#9ab0d4; font-size:10px; }
.stage-nav a:hover { color:var(--blue); }
.stage-nav .stop-link { margin-left:auto; color:#916b82; }
.guide-reading { max-width:1020px; }
.stage { display:grid; grid-template-columns:155px minmax(0,1fr); gap:45px; padding:40px 0; border-bottom:1px solid var(--line); }
.stage-label > span { display:block; color:#cedbf2; font-size:42px; font-weight:350; letter-spacing:-.05em; line-height:1.3; }
.stage-label > p { font-size:11px; color:#8598b8; margin-top:8px; }
.stage-body h2 { font-size:27px; }
.stage-body > p { color:#657894; font-size:15px; line-height:2; margin-top:19px; }
.action-box { background:#f4f7fd; border-left:3px solid #bdd0f7; border-radius:0 5px 5px 0; padding:18px 22px; margin-top:24px; }
.action-box h3 { color:#5a78ae; font-size:12px; font-weight:550; }
.action-box ul { padding-left:17px; margin:10px 0 0; color:#7a90b2; font-size:12px; line-height:1.9; }
.action-box li { margin-top:5px; }
.stop-panel { padding:29px 32px; border:1px solid #eadde6; background:#fcf8fb; border-radius:9px; margin-top:37px; }
.stop-panel-title { display:flex; align-items:center; gap:15px; }
.stop-panel-title > span { flex-shrink:0; display:flex; align-items:center; justify-content:center; width:32px; height:32px; border:1px solid #d8bfcf; border-radius:50%; color:#a98299; font-size:17px; }
.stop-panel .eyebrow { color:#aa88a0; font-size:9px; }
.stop-panel h2 { color:#745768; font-size:22px; margin-top:5px; }
.stop-panel ul { padding-left:18px; margin:20px 0 0; color:#957f8e; font-size:13px; line-height:1.9; }
.stop-panel li { margin-top:7px; }
.stop-panel > a { display:inline-block; margin-top:21px; color:#8c6b81; }
.related-section { padding-top:45px; }
.related-section > h2 { font-size:26px; margin-top:8px; }
.related-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:22px; }
.related-grid > a { padding:24px; border:1px solid #dfe8f7; border-radius:8px; position:relative; }
.related-grid > a:hover { background:#f8faff; }
.related-grid a > span { display:block; color:#8ca2c8; font-size:10px; }
.related-grid h3 { font-size:17px; font-weight:500; margin-top:12px; padding-right:25px; }
.related-grid b { position:absolute; right:22px; top:27px; font-size:22px; font-weight:400; color:#8ca5d1; }
.not-found { padding-top:100px; padding-bottom:110px; min-height:530px; }
.not-found h1 { margin-top:21px; }
.not-found p { color:var(--muted); margin:25px 0; max-width:690px; }
@media (max-width:1180px) {
  .container { width:calc(100% - 60px); }
  .header-inner { gap:21px; }
  .brand { font-size:16px; }
  .brand-symbol { width:29px; height:33px; }
  .brand small { font-size:7px; letter-spacing:1.1px; }
  .main-nav { gap:17px; }
  .main-nav a { font-size:11px; }
  .hero { gap:34px; }
  .hero h1 { font-size:43px; }
  .hero-actions { gap:17px; }
  .hero-actions .text-link { font-size:11px; }
  .issue-card { padding:24px 22px 19px; }
  .issue-card h3 { font-size:18px; }
  .faq-layout { gap:45px; }
}
@media (max-width:1060px) {
  .header-inner { min-height:77px; }
  .main-nav { display:none; position:absolute; top:77px; left:0; right:0; padding:12px 30px 20px; background:white; border-bottom:1px solid #dfe7f4; box-shadow:0 12px 18px #12347808; }
  .main-nav.is-open { display:flex; flex-wrap:wrap; gap:0; }
  .main-nav a { width:33.333%; padding:15px 10px; font-size:13px; border:0; }
  .main-nav a[aria-current] { background:#f2f6ff; border-radius:4px; }
  .menu-toggle { display:block; }
  .hero { grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr); gap:25px; padding-top:56px; padding-bottom:54px; }
  .hero h1 { font-size:38px; }
  .hero-copy > p { font-size:13px; }
  .hero-art { padding:15px 10px 12px; }
  .hero-actions { gap:15px; }
  .issue-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .issue-card { min-height:252px; }
  .issue-card h3 { font-size:22px; }
  .reading-route { gap:25px; }
  .reading-route > div { padding-left:43px; }
  .support-banner { gap:28px; }
  .support-banner h2 { font-size:22px; }
  .guide-intro { gap:18px; }
  .prepare-card { padding:24px; }
  .stage { grid-template-columns:125px minmax(0,1fr); gap:30px; }
  .stage-nav .stop-link { margin-left:0; }
}
@media (max-width:760px) {
  .container { width:calc(100% - 44px); }
  .hero { grid-template-columns:1fr; gap:33px; padding-top:39px; padding-bottom:38px; }
  .hero h1 { font-size:46px; }
  .hero-copy > p { font-size:14px; }
  .hero-art { max-width:530px; width:100%; justify-self:center; padding:14px 18px; }
  .hero-art img { height:285px; object-fit:contain; }
  .section { padding-top:40px; padding-bottom:42px; }
  .section-heading { align-items:flex-start; flex-direction:column; gap:12px; margin-bottom:24px; }
  .section-heading > p { padding:0; }
  h2 { font-size:28px; }
  .issue-card h3 { font-size:20px; }
  .reading-route { grid-template-columns:1fr; gap:25px; margin-top:27px; }
  .reading-route > div { padding-left:51px; }
  .reading-route h3 { font-size:17px; }
  .reading-route p { margin-top:7px; font-size:13px; }
  .route-section { padding:38px 0; }
  .faq-layout { grid-template-columns:1fr; gap:25px; }
  .faq-layout h2 br { display:none; }
  .faq-layout .muted { max-width:none; margin-top:14px; }
  .support-banner { padding:28px; flex-direction:column; align-items:flex-start; gap:24px; }
  .sources { margin-top:30px; padding-top:23px; }
  .sources ul { gap:9px 20px; }
  .footer-top { flex-wrap:wrap; gap:12px; }
  .footer-top p { order:3; width:100%; }
  .footer-grid { grid-template-columns:1fr; gap:22px; }
  .footer-grid p { margin-top:7px; }
  .site-footer { margin-top:45px; }
  .footer-bottom { flex-wrap:wrap; gap:13px; }
  .guide-header h1 { font-size:36px; }
  .guide-intro { grid-template-columns:1fr; gap:17px; }
  .guide-intro img { height:280px; }
  .prepare-card { padding:25px; }
  .prepare-card ul { margin-top:14px; }
  .prepare-card > p { margin-top:15px; }
  .stage { grid-template-columns:1fr; gap:14px; padding:30px 0; }
  .stage-label { display:flex; align-items:center; gap:14px; }
  .stage-label > span { font-size:27px; }
  .stage-label > p { margin-top:0; }
  .stage-body h2 { font-size:26px; }
  .stage-body > p { font-size:15px; }
  .related-grid { grid-template-columns:1fr; gap:14px; }
  .not-found { padding-top:70px; padding-bottom:70px; }
}
@media (max-width:480px) {
  html { scroll-padding-top:92px; }
  .container { width:calc(100% - 40px); }
  .header-inner { min-height:72px; gap:10px; }
  .brand { gap:8px; font-size:13px; }
  .brand-symbol { width:27px; height:31px; }
  .brand small { font-size:6px; letter-spacing:.8px; }
  .header-actions { gap:12px; }
  .registration-cta { font-size:9px; padding:8px 9px; }
  .menu-toggle { width:24px; padding-left:2px; }
  .main-nav { top:72px; padding:12px 20px 18px; }
  .main-nav a { width:50%; font-size:12px; }
  .eyebrow { font-size:10px; letter-spacing:1px; }
  .hero h1 { font-size:35px; letter-spacing:-.06em; margin-top:18px; }
  .hero-copy > p { font-size:13px; line-height:1.95; margin-top:19px; }
  .hero-actions { margin-top:25px; gap:17px; }
  .hero-actions .text-link { font-size:11px; }
  .hero-caption { gap:15px; font-size:9px; margin-top:21px; }
  .hero-art { padding:12px 10px; }
  .hero-art img { height:auto; }
  .hero-art figcaption { font-size:8px; }
  h2 { font-size:26px; }
  .issue-grid { grid-template-columns:1fr; gap:14px; }
  .issue-card { min-height:235px; padding:24px; }
  .issue-card h3 { font-size:23px; }
  .issue-card > p { font-size:13px; }
  .issue-symbol { font-size:33px; }
  .issue-note { padding:24px; }
  .issue-note h3 { font-size:21px; }
  .issue-note p { font-size:13px; }
  .card-bottom { padding-top:20px; }
  .reading-route h3 { font-size:16px; }
  .faq-list summary { font-size:14px; line-height:1.8; }
  .faq-list details > p { font-size:13px; }
  .support-banner { padding:26px 24px; }
  .support-banner h2 { font-size:23px; }
  .support-banner p { font-size:12px; }
  .sources ul { display:block; }
  .sources li { margin-top:9px; }
  .sources a { font-size:11px; }
  .footer-brand { font-size:17px; }
  .footer-bottom { font-size:9px; }
  .guide { padding-top:22px; }
  .back-link { font-size:10px; margin-bottom:25px; }
  .guide-header h1 { font-size:33px; line-height:1.4; }
  .guide-header > p { font-size:14px; margin-top:18px; }
  .guide-meta { gap:9px 14px; font-size:9px; margin-top:17px; }
  .guide-intro { margin-top:25px; }
  .guide-intro figure { padding:0 10px 12px; }
  .guide-intro img { height:220px; }
  .guide-intro figcaption { font-size:8px; }
  .prepare-card h2 { font-size:24px; }
  .prepare-card li { font-size:12px; }
  .stage-nav { gap:11px 19px; margin-top:23px; padding:16px 0; }
  .stage-nav a { font-size:10px; }
  .stage-body h2 { font-size:24px; }
  .stage-body > p { font-size:14px; line-height:2; margin-top:17px; }
  .action-box { padding:17px 19px; }
  .stop-panel { padding:25px 22px; margin-top:28px; }
  .stop-panel-title { align-items:flex-start; gap:12px; }
  .stop-panel h2 { font-size:21px; }
  .stop-panel ul { font-size:12px; }
  .stop-panel .text-link { font-size:11px; }
  .related-section { padding-top:34px; }
  .related-section > h2 { font-size:24px; }
  .related-grid h3 { font-size:16px; }
  .not-found h1 { font-size:34px; }
  .not-found p { font-size:14px; }
}
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } *,*::before,*::after { transition-duration:.01ms!important; } }