:root{--bg:#f6f8fb;--bg2:#eef4ff;--ink:#0b1220;--muted:#5b6b82;--card:#fff;--line:#dbe4ef;--brand:#165dff;--brand2:#13b8a6;--gold:#c48a1b;--danger:#b42318;--dark:#07111f;--shadow:0 24px 70px rgba(20,40,80,.10);--soft:rgba(22,93,255,.08);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Inter,Arial,sans-serif;background:radial-gradient(circle at 10% -10%,#dff0ff 0,#f7faff 30%,#fff 70%);color:var(--ink)}a{color:inherit;text-decoration:none}.container{max-width:1240px;margin:0 auto;padding:0 22px}.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(20px);border-bottom:1px solid rgba(219,228,239,.9)}.nav{min-height:78px;display:flex;align-items:center;gap:20px;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:950;letter-spacing:-.02em}.logo{width:46px;height:46px;border-radius:18px;background:linear-gradient(135deg,var(--brand),#6d5dfc);display:grid;place-items:center;color:#fff;box-shadow:0 14px 35px rgba(22,93,255,.28)}.brand small{font-weight:700;color:var(--muted)}.navlinks{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}.navlinks a{padding:9px 11px;border-radius:999px;color:#334155;font-weight:800;font-size:14px}.navlinks a:hover,.navlinks a.active{background:var(--soft);color:var(--brand)}.language-picker{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 9px;font-size:13px;font-weight:900;white-space:nowrap}.language-picker select{border:0;background:transparent;font-weight:900;outline:none;color:var(--ink)}.hero{padding:82px 0 52px;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 13px;color:var(--muted);font-weight:900;box-shadow:0 8px 20px rgba(20,40,80,.04)}h1{font-size:clamp(38px,6.4vw,72px);line-height:1.02;letter-spacing:-.065em;margin:22px 0;background:linear-gradient(135deg,#0b1220 0,#0f3d91 55%,#0c9488 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.lead{font-size:18px;line-height:1.85;color:#42526a}.btnrow{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{border:0;border-radius:999px;background:var(--dark);color:#fff;padding:12px 18px;font-weight:950;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;box-shadow:0 10px 24px rgba(7,17,31,.12)}.btn.primary{background:linear-gradient(135deg,var(--brand),#6d5dfc)}.btn.teal{background:linear-gradient(135deg,#0f9f8e,#16c7b7)}.btn.light{background:#fff;color:#1e293b;border:1px solid var(--line);box-shadow:none}.btn.small{padding:8px 12px;font-size:13px}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:linear-gradient(180deg,#fff,#fbfdff);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 10px 32px rgba(20,40,80,.05)}.card.hover{transition:.22s}.card.hover:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b6c8e8}.glass{background:rgba(255,255,255,.72);border:1px solid rgba(219,228,239,.85);box-shadow:var(--shadow);backdrop-filter:blur(18px)}.stat{font-size:34px;font-weight:1000;letter-spacing:-.05em;color:var(--brand)}.muted{color:var(--muted)}.section{padding:52px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:22px}.section h2,h2{font-size:clamp(28px,4vw,44px);letter-spacing:-.05em;line-height:1.1;margin:0}.kicker{color:var(--brand);font-size:14px;font-weight:1000;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.notice{border:1px solid #fde68a;background:#fff9e8;color:#7a4a00;border-radius:20px;padding:16px;line-height:1.75}.toolbar{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;margin:18px 0}.input,select,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:16px;padding:13px 14px;font:inherit;outline:none}.input:focus,select:focus,textarea:focus{border-color:#8db4ff;box-shadow:0 0 0 4px rgba(22,93,255,.08)}.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:var(--soft);color:#174ea6;font-weight:900;font-size:12px;margin:2px}.tag.gray{background:#f1f5f9;color:#475569}.layout{display:grid;grid-template-columns:270px 1fr;gap:22px}.sidebar{position:sticky;top:98px;height:max-content}.list{display:grid;gap:8px;max-height:70vh;overflow:auto;padding-right:3px}.list button,.list a{border:1px solid var(--line);background:#fff;border-radius:16px;padding:12px;text-align:left;font-weight:850;color:#344256;cursor:pointer}.list button.active,.list a.active{background:var(--dark);color:#fff;border-color:var(--dark)}.article{line-height:1.9;color:#334155}.article h1{font-size:clamp(32px,5vw,58px);color:var(--ink);background:none;-webkit-background-clip:initial;background-clip:initial;letter-spacing:-.05em}.article h3{color:#101827;margin-top:30px}.article ul{padding-left:1.3em}.article li{margin:.45em 0}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden}.table th,.table td{border-bottom:1px solid var(--line);padding:13px;text-align:left;vertical-align:top}.table th{background:#f3f7fb}.split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.source-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.source-links a{font-size:12px;border:1px solid #c7d7ee;border-radius:999px;padding:7px 10px;color:#174ea6;background:#fff;font-weight:900}.countbar{display:flex;gap:10px;flex-wrap:wrap}.countbar span{border-radius:999px;background:#fff;border:1px solid var(--line);padding:8px 12px;color:var(--muted);font-weight:850}.footer{border-top:1px solid var(--line);background:#fff;margin-top:40px;padding:30px 0;color:#65758a;font-size:14px}.redirect{min-height:70vh;display:grid;place-items:center;text-align:center}.warning{color:#8a4b00}.danger{color:var(--danger)}.prose{line-height:1.85}.prose p{margin:0 0 1em}.prose ul{margin:0 0 1em;padding-left:1.4em}.badge-row{display:flex;gap:8px;flex-wrap:wrap}@media(max-width:980px){.hero,.layout,.split{grid-template-columns:1fr}.grid.two,.grid.three,.grid.four{grid-template-columns:1fr}.toolbar{grid-template-columns:1fr}.section-head{align-items:stretch;flex-direction:column}.nav{align-items:flex-start;flex-direction:column;padding:14px 0}.navlinks{justify-content:flex-start}.sidebar{position:static}.list{max-height:none}}@media(max-width:620px){.navlinks{display:grid;grid-template-columns:1fr 1fr;width:100%}.navlinks a{text-align:center}.hero{padding-top:36px}.container{padding:0 16px}}


/* Support & Partnership page */
.support-page .support-hero{padding:34px}.contact-strip{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px 18px;margin:18px 0;font-weight:950}.contact-strip span{color:var(--muted)}.contact-strip a{color:var(--brand);word-break:break-all}.payment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.qr-card{overflow:hidden}.qr-title{display:flex;align-items:center;gap:14px;margin-bottom:14px}.qr-title h3{margin:0}.pay-badge{width:64px;height:64px;border-radius:22px;display:grid;place-items:center;color:#fff;font-weight:1000;font-size:13px;box-shadow:0 16px 34px rgba(20,40,80,.13)}.pay-badge.alipay{background:linear-gradient(135deg,#1677ff,#58a6ff)}.pay-badge.wechat{background:linear-gradient(135deg,#07c160,#38d996)}.qr-card img{width:100%;max-height:680px;object-fit:contain;background:#f8fafc;border:1px solid var(--line);border-radius:22px;padding:10px}.small-note{font-size:14px;line-height:1.7}.support-page .notice{margin-top:18px}@media(max-width:820px){.payment-grid{grid-template-columns:1fr}.support-page .support-hero{padding:24px}.qr-card img{max-height:none}}