:root{--blue:#1f6feb;--deep:#0b3d91;--ink:#1c2333;--mut:#5b6478;--bg:#f4f7fc;--card:#fff;--line:#e3e9f4;--ok:#0f9d58}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.85;font-size:16px}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.hd-in{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--deep);text-decoration:none}
.site-nav{margin-left:auto;display:flex;gap:6px}
.site-nav a{padding:8px 16px;border-radius:8px;color:var(--mut);text-decoration:none;font-size:15px;transition:.2s}
.site-nav a:hover{color:var(--blue);background:#eef4ff}
.site-nav a.is-active{color:#fff;background:var(--blue)}
.hero{background:linear-gradient(135deg,#0b3d91 0%,#1f6feb 55%,#4f9cff 100%);color:#fff;padding:76px 0 84px}
.hero .kick{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:4px 14px;border-radius:99px;font-size:13px;margin-bottom:18px}
.hero h1{font-size:40px;line-height:1.3;margin-bottom:16px;max-width:760px}
.hero p{max-width:680px;color:#dbe8ff;font-size:17px;margin-bottom:28px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:10px;font-weight:700;text-decoration:none;font-size:16px;transition:.2s;border:0;cursor:pointer}
.btn-primary{background:#fff;color:var(--deep)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.22)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn.is-loading{opacity:.65;pointer-events:none}
section.blk{padding:64px 0}
section.blk:nth-of-type(even){background:#fff}
.h2-kick{color:var(--blue);font-weight:700;font-size:14px;letter-spacing:2px;margin-bottom:8px}
h2{font-size:29px;line-height:1.4;margin-bottom:18px;color:var(--deep)}
.lead{color:var(--mut);max-width:820px;margin-bottom:30px;font-size:16.5px}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px;transition:.2s}
.card:hover{border-color:var(--blue);box-shadow:0 12px 30px rgba(31,111,235,.10);transform:translateY(-3px)}
.card .ic{width:46px;height:46px;border-radius:12px;background:#e8f1ff;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.card h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.card p{color:var(--mut);font-size:15px}
.card ul{color:var(--mut);font-size:15px;padding-left:18px}
.card li{margin:4px 0}
.num-badge{display:inline-flex;width:46px;height:46px;border-radius:50%;background:var(--blue);color:#fff;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:14px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stat b{display:block;font-size:34px;color:var(--blue)}
.stat span{color:var(--mut);font-size:14px}
.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 0 var(--line)}
.tbl th{background:var(--deep);color:#fff;padding:13px 16px;text-align:left;font-size:15px}
.tbl td{padding:12px 16px;border-bottom:1px solid var(--line);font-size:15px;color:var(--mut)}
.tbl tr:last-child td{border-bottom:0}
.qa{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin-bottom:14px}
.qa h3{font-size:16.5px;color:var(--deep);margin-bottom:8px;display:flex;gap:8px;align-items:flex-start}
.qa p{color:var(--mut);font-size:15px}
.steps{counter-reset:s;list-style:none}
.steps li{position:relative;padding:0 0 26px 58px;counter-increment:s}
.steps li::before{content:counter(s);position:absolute;left:0;top:2px;width:38px;height:38px;border-radius:10px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.steps h3{font-size:17px;margin-bottom:4px}
.steps p{color:var(--mut);font-size:15px}
.cta-band{background:linear-gradient(120deg,#0b3d91,#1f6feb);border-radius:18px;color:#fff;padding:46px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#d5e4ff;max-width:640px;margin:0 auto 24px}
.article p{margin-bottom:16px;color:#37405a}
.article h3{font-size:20px;margin:26px 0 10px;color:var(--deep)}
.article ul{padding-left:20px;margin-bottom:16px;color:#37405a}
.article li{margin:5px 0}
.note{border-left:4px solid var(--blue);background:#eef4ff;padding:14px 18px;border-radius:0 10px 10px 0;color:#31548f;margin:18px 0;font-size:15px}
.tag{display:inline-block;background:#e8f1ff;color:var(--blue);border-radius:6px;padding:2px 10px;font-size:13px;margin:0 6px 6px 0}
.site-footer{background:#0d1730;color:#8fa0c4;padding:44px 0 30px;font-size:14px}
.site-footer a{color:#b9c7e6;text-decoration:none}
.ft-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:26px}
.ft-grid h4{color:#fff;font-size:15px;margin-bottom:10px}
.ft-grid ul{list-style:none}
.ft-grid li{margin:6px 0}
.ft-legal{border-top:1px solid #1d2a4d;padding-top:20px;line-height:2}
.back-to-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:50%;border:0;background:var(--blue);color:#fff;cursor:pointer;opacity:0;pointer-events:none;transition:.25s;box-shadow:0 6px 18px rgba(31,111,235,.4)}
.back-to-top.is-show{opacity:1;pointer-events:auto}
@media(max-width:860px){.g3,.g4,.g2{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:30px}.site-nav a{padding:8px 10px;font-size:14px}}