:root {
    --ink: #202438;
    --muted: #6d7186;
    --line: #e8e7f0;
    --paper: #fbfaff;
    --lilac: #efe8ff;
    --violet: #7056d8;
    --violet-deep: #4c397f;
    --cyan: #8bd9d2;
    --coral: #f59a88;
    --shadow: 0 18px 60px rgba(57, 40, 111, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(232, 231, 240, .9);
    background: rgba(251, 250, 255, .94);
    backdrop-filter: blur(16px);
}
.nav-wrap { max-width: 1160px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .04em; }
.brand img { width: 38px; height: 38px; }
.brand-name { font-size: 20px; color: var(--violet-deep); }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 14px; color: var(--muted); }
.nav-links a { padding: 6px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--violet); border-color: var(--violet); }
.nav-download { color: #fff !important; background: var(--violet); padding: 9px 16px !important; border-radius: 7px; border: 0 !important; box-shadow: 0 8px 20px rgba(112, 86, 216, .24); }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.hero { position: relative; overflow: hidden; padding: 86px 0 70px; background: linear-gradient(135deg, #f5f0ff 0%, #fbfaff 58%, #ecfbf8 100%); }
.hero::after { content: ""; position: absolute; width: 460px; height: 460px; right: -130px; top: -190px; border: 1px solid rgba(112,86,216,.16); border-radius: 50%; box-shadow: 0 0 0 38px rgba(112,86,216,.04), 0 0 0 78px rgba(112,86,216,.025); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.eyebrow { color: var(--violet); font-size: 13px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
h1 { margin: 12px 0 18px; font-size: clamp(34px, 5vw, 62px); line-height: 1.15; letter-spacing: -.02em; }
h2 { margin: 0 0 20px; font-size: clamp(26px, 3vw, 38px); line-height: 1.25; }
h3 { margin: 0 0 8px; line-height: 1.35; }
.hero-copy { max-width: 650px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border-radius: 7px; border: 1px solid var(--violet); font-weight: 700; font-size: 15px; transition: transform .2s ease, box-shadow .2s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(112,86,216,.18); }
.btn-primary { color: #fff; background: var(--violet); }
.btn-ghost { color: var(--violet-deep); background: transparent; }
.hero-note { margin-top: 16px; color: var(--muted); font-size: 13px; }
.hero-art { display: flex; justify-content: center; }
.hero-art img { width: min(100%, 330px); filter: drop-shadow(0 26px 28px rgba(43, 28, 85, .18)); }
.section { padding: 84px 0; }
.section-tint { background: #f1fbf9; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.section-head p { max-width: 520px; margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { min-height: 220px; padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 8px 26px rgba(66, 54, 105, .05); }
.feature-mark { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; margin-bottom: 18px; border-radius: 50%; background: var(--lilac); color: var(--violet-deep); font-weight: 800; }
.feature-card p, .review p, .stat span, .step p, .faq-item p { color: var(--muted); }
.showcase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: end; }
.showcase-card { margin: 0; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.showcase-card img { width: min(100%, 400px); margin: 0 auto 14px; }
.showcase-card figcaption { color: var(--muted); font-size: 14px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 24px 18px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; margin-bottom: 4px; color: var(--violet-deep); font-size: 30px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review { padding: 24px; border-left: 3px solid var(--cyan); background: #fff; }
.review cite { display: block; margin-top: 12px; color: var(--violet-deep); font-style: normal; font-weight: 700; }
.path-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.path-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.path-card p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.arrow { color: var(--violet); font-size: 24px; }
.page-hero { padding: 70px 0 48px; background: linear-gradient(135deg, #f5f0ff, #effaf8); }
.page-hero p { max-width: 700px; margin: 0; color: var(--muted); font-size: 17px; }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 54px; align-items: start; }
.article { padding: 50px 0 80px; }
.article h2 { margin-top: 42px; font-size: 28px; }
.article h3 { margin-top: 26px; font-size: 20px; }
.article p { color: #494d61; }
.article ul, .article ol { padding-left: 22px; color: #494d61; }
.article li { margin: 10px 0; }
.side-panel { position: sticky; top: 88px; padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.side-panel h3 { color: var(--violet-deep); font-size: 17px; }
.side-panel a { display: block; padding: 8px 0; color: var(--muted); font-size: 14px; border-bottom: 1px solid var(--line); }
.side-panel a:last-child { border-bottom: 0; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 20px 22px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.faq-item h3 { font-size: 18px; }
.footer { padding: 42px 0 26px; color: #e8e5f7; background: #2c2944; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 36px; }
.footer .brand-name { color: #fff; }
.footer p, .footer a { color: #b9b5cd; font-size: 14px; }
.footer h3 { color: #fff; font-size: 16px; }
.footer-links { display: grid; gap: 6px; }
.disclaimer { margin-top: 30px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); color: #b9b5cd; font-size: 12px; }
.copyright { margin-top: 10px; color: #928da9; font-size: 12px; }
@media (max-width: 860px) {
    .nav-links { gap: 12px; font-size: 13px; }
    .hero-grid, .content-layout { grid-template-columns: 1fr; }
    .hero-art { order: -1; justify-content: flex-start; }
    .hero-art img { width: 220px; }
    .showcase, .feature-grid, .review-grid { grid-template-columns: 1fr; }
    .showcase-card { display: grid; grid-template-columns: 130px 1fr; gap: 18px; align-items: center; }
    .showcase-card img { width: 130px; margin: 0; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2) { border-right: 0; }
    .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .footer-grid { grid-template-columns: 1fr; gap: 22px; }
    .side-panel { position: static; }
}
@media (max-width: 560px) {
    .nav-wrap { padding: 10px 16px; }
    .brand-name { font-size: 18px; }
    .nav-links a:not(.nav-download) { display: none; }
    .container { padding: 0 18px; }
    .hero { padding: 56px 0 58px; }
    .section { padding: 60px 0; }
    h1 { font-size: 38px; }
    .path-grid { grid-template-columns: 1fr; }
    .showcase-card { grid-template-columns: 1fr; }
    .showcase-card img { width: min(100%, 220px); margin: 0 auto; }
}