:root{
    --blue:#d9efff;
    --blue-strong:#56a8e8;
    --yellow:#fff2bd;
    --orange:#ffb26b;
    --orange-soft:#ffe1c4;
    --white:#ffffff;
    --ink:#1c3448;
    --muted:#5e7486;
    --line:#e7f0f7;
    --card:#ffffffcc;
    --shadow:0 16px 45px rgba(82,138,177,.16);
    --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
    color:var(--ink);
    background:
        radial-gradient(circle at 12% 8%, rgba(255,242,189,.9), transparent 26rem),
        radial-gradient(circle at 88% 6%, rgba(217,239,255,.9), transparent 28rem),
        linear-gradient(180deg,#fffaf0 0%,#f6fbff 45%,#fff 100%);
    line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{
    position:sticky;
    top:0;
    z-index:50;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:16px clamp(18px,4vw,54px);
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(231,240,247,.8);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:22px}
.brand-mark{
    display:grid;place-items:center;
    width:42px;height:42px;
    border-radius:16px;
    background:linear-gradient(135deg,var(--blue),var(--yellow));
    box-shadow:0 8px 22px rgba(86,168,232,.2);
}
.site-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.site-nav a{padding:9px 13px;border-radius:999px;color:#304f66;font-weight:650;font-size:15px}
.site-nav a:hover{background:var(--blue);color:#0d4f84}
.nav-toggle{display:none;border:0;border-radius:14px;background:var(--blue);padding:9px 12px;font-size:20px;color:var(--ink)}
.hero{
    display:grid;
    grid-template-columns:minmax(0,1.02fr) minmax(280px,.78fr);
    gap:34px;
    align-items:center;
    padding:clamp(42px,7vw,86px) clamp(18px,5vw,72px) 34px;
}
.hero-card,.soft-card,.feature-card,.content-card,.faq-item,.form-panel,.notice-card{
    background:var(--card);
    border:1px solid rgba(231,240,247,.9);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
}
.hero-copy{padding:34px;background:rgba(255,255,255,.72);border-radius:34px;border:1px solid rgba(231,240,247,.9)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--yellow);color:#7a5a0a;font-weight:760;font-size:14px}
h1{font-size:clamp(34px,6vw,64px);line-height:1.12;margin:18px 0 16px;letter-spacing:-1.2px}
h2{font-size:clamp(26px,3.6vw,42px);line-height:1.22;margin:0 0 14px;letter-spacing:-.4px}
h3{font-size:21px;margin:0 0 8px}
p{margin:0;color:var(--muted)}
.lead{font-size:18px;color:#46677e;max-width:760px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;font-weight:760;border:1px solid transparent;transition:.18s ease}
.btn-primary{background:var(--blue-strong);color:white;box-shadow:0 12px 28px rgba(86,168,232,.24)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-secondary{background:white;border-color:var(--line);color:#315a78}
.btn-secondary:hover{background:var(--yellow)}
.hero-media{padding:22px}
.hero-media img{width:100%;border-radius:24px}
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.stat{padding:16px;border-radius:22px;background:#fff;color:#254962;border:1px solid var(--line)}
.stat strong{display:block;font-size:22px;color:#0f6298}
.section{padding:52px clamp(18px,5vw,72px)}
.section-heading{max-width:820px;margin-bottom:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.feature-card,.content-card,.soft-card,.faq-item,.notice-card{padding:24px}
.card-icon{width:62px;height:62px;border-radius:22px;background:var(--blue);display:grid;place-items:center;margin-bottom:16px;font-size:30px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{display:inline-flex;border-radius:999px;padding:6px 11px;background:#f4f9fd;color:#42657e;font-weight:650;font-size:13px;border:1px solid #e3edf5}
.tag.warm{background:var(--orange-soft);color:#8a4c12;border-color:#ffd0a6}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center}
.split .illustration{padding:18px;border-radius:32px;background:linear-gradient(135deg,#fff,#e9f6ff);border:1px solid var(--line);box-shadow:var(--shadow)}
.list-clean{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px}
.list-clean li{padding:14px 16px;border-radius:18px;background:#fff;border:1px solid var(--line);color:#415f76}
.timeline{display:grid;gap:14px;margin-top:18px}
.timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;padding:18px;border-radius:22px;background:white;border:1px solid var(--line)}
.dot{width:34px;height:34px;border-radius:50%;background:var(--yellow);display:grid;place-items:center;font-weight:800;color:#8a6400}
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.video-card{overflow:hidden;border-radius:28px;background:white;border:1px solid var(--line);box-shadow:var(--shadow)}
.video-card img{width:100%;background:#eef8ff}
.video-body{padding:20px}
.play-pill{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:var(--blue);color:#195d8d;font-weight:760;padding:7px 12px;font-size:13px;margin-bottom:10px}
.quote-card{padding:24px;border-radius:28px;background:linear-gradient(135deg,#fff,#fff7dc);border:1px solid #ffedbd;box-shadow:var(--shadow)}
.quote-card strong{display:block;margin-top:14px;color:#30536b}
.faq-list{display:grid;gap:14px}
.faq-item button{width:100%;border:0;background:transparent;text-align:left;font-size:18px;font-weight:800;color:var(--ink);padding:0;cursor:pointer;display:flex;justify-content:space-between;gap:20px}
.faq-item .answer{display:none;margin-top:12px}
.faq-item.open .answer{display:block}
.page-hero{padding:62px clamp(18px,5vw,72px) 28px}
.page-hero .hero-copy{max-width:980px}
.table-wrap{overflow-x:auto;border-radius:24px;border:1px solid var(--line);background:white;box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;min-width:720px;background:white}
th,td{padding:15px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f4f9fd;color:#254962}
td{color:#536e80}
.form-panel{max-width:980px;padding:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:grid;gap:8px;font-weight:750;color:#365b74}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:16px;padding:12px 14px;font:inherit;color:var(--ink);background:white}
textarea{min-height:136px;resize:vertical}
.form-full{grid-column:1/-1}
.form-note{margin-top:14px;font-size:14px}
.form-success{display:none;margin-top:16px;padding:14px 16px;border-radius:18px;background:#eaf9e9;color:#2e6d35;border:1px solid #cceec9}
.site-footer{padding:38px clamp(18px,5vw,72px);background:#f7fbff;border-top:1px solid var(--line);margin-top:36px}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:22px;margin-bottom:22px}
.footer-grid div{background:white;border:1px solid var(--line);border-radius:24px;padding:20px}
.footer-grid strong{display:block;margin-bottom:8px;color:#254962}
.update-time{font-weight:760;color:#4f7188;text-align:center}
.ribbon{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.ribbon span{background:white;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#46677e;font-weight:650}
.domain-box{padding:18px;border-radius:22px;background:#fff8dc;border:1px solid #ffe8a0;color:#745414;margin-top:18px}
@media (max-width:980px){
    .hero,.split{grid-template-columns:1fr}
    .grid-3,.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
    .site-header{align-items:flex-start}
    .nav-toggle{display:block}
    .site-nav{display:none;position:absolute;left:16px;right:16px;top:74px;background:white;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:12px;flex-direction:column;align-items:stretch}
    .site-nav.open{display:flex}
    .site-nav a{padding:12px 14px}
    .hero-copy{padding:24px}
    .stats-row,.grid-3,.grid-2,.video-grid,.form-grid{grid-template-columns:1fr}
    .section{padding-top:38px;padding-bottom:38px}
    h1{letter-spacing:-.6px}
}

.avatar-small{width:76px;height:76px}