:root{
    --blue:#e8f6ff;
    --blue-strong:#7cc8ee;
    --cream:#fff4c7;
    --orange:#ffb36b;
    --orange-soft:#ffe2c3;
    --text:#284158;
    --muted:#6f8192;
    --white:#ffffff;
    --card:#ffffffd9;
    --line:#dcecf6;
    --shadow:0 18px 55px rgba(76,137,177,.18);
    --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(--text);
    background:linear-gradient(180deg,#f6fbff 0%,#fffaf0 42%,#f9fcff 100%);
    line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{
    position:sticky;
    top:0;
    z-index:30;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:22px;
    padding:16px clamp(18px,4vw,58px);
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(124,200,238,.24);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:900;font-size:1.25rem;color:#236082;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{padding:10px 14px;border-radius:999px;color:#476173;font-weight:700;font-size:.96rem}
.main-nav a:hover,.main-nav a.active{background:var(--blue);color:#16608c}
.nav-toggle{display:none;border:0;background:var(--cream);border-radius:16px;padding:9px 12px;font-size:1.25rem;color:#315a73}
main{overflow:hidden}
.container,.hero,.wide-section{width:min(1160px,calc(100% - 36px));margin-inline:auto}
.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center;padding:72px 0 44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--cream);font-weight:800;color:#7b5b12;margin:0 0 16px}
h1{font-size:clamp(2.25rem,6vw,4.75rem);line-height:1.08;margin:0 0 20px;letter-spacing:-.04em;color:#183f5d}
h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.15;margin:0 0 16px;color:#1d4f70;letter-spacing:-.03em}
h3{font-size:1.28rem;margin:0 0 8px;color:#265b7b}
p{margin:0 0 14px}.lead{font-size:1.15rem;color:#587083;max-width:690px}.small{font-size:.92rem;color:var(--muted)}
.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:13px 20px;font-weight:900;border:2px solid transparent;transition:.2s ease}.btn.primary{background:#ffad5d;color:#fff;box-shadow:0 14px 28px rgba(255,173,93,.28)}.btn.secondary{background:#fff;border-color:#bce3f8;color:#236082}.btn:hover{transform:translateY(-2px)}
.hero-card{position:relative;padding:24px;border-radius:36px;background:linear-gradient(145deg,#fff,#e9f8ff);box-shadow:var(--shadow);border:1px solid var(--line)}
.hero-card:before{content:"";position:absolute;inset:auto -38px -38px auto;width:160px;height:160px;background:var(--cream);border-radius:50%;z-index:-1}.hero-card img{border-radius:28px}.domain-panel{display:grid;grid-template-columns:auto 1fr;gap:10px 14px;margin-top:18px;padding:18px;border-radius:24px;background:#fff7dc;color:#5f5127}.domain-panel strong{color:#7c5618}.domain-panel span{word-break:break-all}
.section{padding:54px 0}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin-bottom:24px}.section-head p{max-width:650px;color:var(--muted)}
.grid{display:grid;gap:20px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 12px 36px rgba(88,132,162,.1)}.card.soft{background:linear-gradient(180deg,#fff,#fff7df)}.card.blue{background:linear-gradient(180deg,#fff,#eaf7ff)}.card.orange{background:linear-gradient(180deg,#fff,#ffe7cc)}
.card img.icon,.icon{width:72px;height:72px;margin-bottom:14px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.tag{display:inline-flex;border-radius:999px;padding:6px 10px;background:#eef8ff;color:#2f6f92;font-size:.84rem;font-weight:800}.tag.warm{background:#fff0d6;color:#8a5a16}.tag.safe{background:#eefbea;color:#467439}.feature-list{padding:0;margin:16px 0 0;list-style:none}.feature-list li{padding:10px 0 10px 28px;position:relative;border-top:1px dashed #d7e7f0}.feature-list li:before{content:"★";position:absolute;left:0;color:#ffaf54}.pill-board{display:flex;gap:12px;flex-wrap:wrap}.pill-board span{padding:10px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:800;color:#42657a}
.banner{border-radius:38px;padding:34px;background:linear-gradient(135deg,#e8f6ff,#fff3c0 54%,#ffe0bf);box-shadow:var(--shadow);display:grid;grid-template-columns:1fr .75fr;gap:24px;align-items:center}.banner img{border-radius:28px}.note{border-left:6px solid var(--orange);padding:18px 20px;background:#fff8e8;border-radius:18px;color:#5d5a40}.timeline{display:grid;gap:16px}.step{display:grid;grid-template-columns:58px 1fr;gap:16px;align-items:start}.step b{width:48px;height:48px;border-radius:18px;display:grid;place-items:center;background:var(--blue);color:#226186}.faq details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px 20px}.faq details+details{margin-top:12px}.faq summary{font-weight:900;cursor:pointer;color:#225777}.feedback{display:grid;grid-template-columns:70px 1fr;gap:14px;align-items:start}.avatar{width:64px;height:64px;border-radius:22px;background:linear-gradient(135deg,var(--blue),var(--cream));display:grid;place-items:center;font-weight:900;color:#236082}.video-card{overflow:hidden;padding:0}.video-card img{width:100%;border-radius:var(--radius) var(--radius) 0 0}.video-card .inside{padding:20px}.form{display:grid;gap:14px}.form label{font-weight:900}.form input,.form textarea,.form select{width:100%;border:1px solid #cfe5f2;border-radius:18px;padding:13px 14px;background:#fff;color:var(--text);font:inherit}.form textarea{min-height:130px;resize:vertical}.form .btn{border:0;cursor:pointer}.site-footer{width:min(1160px,calc(100% - 36px));margin:44px auto 22px}.footer-card{display:flex;justify-content:space-between;gap:24px;align-items:center;border-radius:32px;background:#1d4f70;color:#f7fbff;padding:28px}.footer-card p{color:#d9edf8}.footer-links{display:flex;gap:12px;flex-wrap:wrap}.footer-links a{padding:9px 13px;border-radius:999px;background:rgba(255,255,255,.14)}.copyright{text-align:center;color:var(--muted);margin-top:18px}
.page-hero{padding:68px 0 28px}.page-hero .hero-line{max-width:760px}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.mini-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.mini-stat div{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;text-align:center}.mini-stat b{display:block;font-size:1.5rem;color:#2f779a}
@media (max-width:900px){.hero,.banner,.split{grid-template-columns:1fr}.grid.three,.grid.two,.grid.four{grid-template-columns:1fr 1fr}.section-head{display:block}.main-nav{display:none;position:absolute;left:18px;right:18px;top:76px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:24px;padding:12px}.main-nav.open{display:grid}.nav-toggle{display:block}.site-header{padding:14px 18px}.footer-card{display:block}.footer-links{margin-top:16px}.mini-stat{grid-template-columns:1fr}}
@media (max-width:560px){.hero,.page-hero{padding-top:42px}.grid.three,.grid.two,.grid.four{grid-template-columns:1fr}.card{padding:20px}.banner{padding:22px}.actions{display:grid}.btn{width:100%}h1{font-size:2.28rem}.domain-panel{grid-template-columns:1fr}.feedback{grid-template-columns:1fr}.site-footer{width:min(100% - 24px,1160px)}}