:root{color-scheme:light dark;--bg:#f5f5f7;--surface:rgba(255,255,255,.78);--surface-strong:#fff;--text:#1d1d1f;--muted:#6e6e73;--line:rgba(29,29,31,.09);--accent:#e88a0a;--accent-soft:#fff2dc;--shadow:0 18px 60px rgba(30,24,16,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 88% -4%,rgba(255,183,68,.20),transparent 32rem),radial-gradient(circle at -5% 55%,rgba(127,180,255,.10),transparent 30rem),var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}main{width:min(920px,calc(100% - 40px));margin:auto;padding:22px 0 max(70px,env(safe-area-inset-bottom))}nav{display:flex;align-items:center;justify-content:space-between;min-height:52px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(145deg,#ffc84a,#ef8b0b);color:white;box-shadow:0 8px 20px rgba(232,138,10,.22)}.quiet-link{color:var(--muted);font-size:14px;text-decoration:none}.quiet-link:hover{color:var(--text)}.hero{padding:88px 0 54px;max-width:720px}.eyebrow{display:block;margin-bottom:12px;color:var(--accent);font-size:12px;font-weight:750;letter-spacing:.16em}.hero h1{margin:0;font-size:clamp(42px,7vw,70px);line-height:1.03;letter-spacing:-.055em}.hero p{max-width:620px;margin:22px 0 0;color:var(--muted);font-size:clamp(17px,2.4vw,21px)}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:90px}.quick-card{min-height:152px;padding:20px;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow);text-decoration:none;backdrop-filter:blur(24px);transition:transform .2s ease,box-shadow .2s ease}.quick-card:hover{transform:translateY(-3px);box-shadow:0 22px 65px rgba(30,24,16,.11)}.quick-card .symbol{display:grid;place-items:center;width:38px;height:38px;margin-bottom:26px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-size:19px}.quick-card strong,.quick-card small{display:block}.quick-card small{margin-top:3px;color:var(--muted);font-size:13px}.support-section{margin:0 0 86px;scroll-margin-top:24px}.section-heading{display:flex;align-items:flex-start;gap:18px;margin-bottom:22px}.section-heading>span{padding-top:7px;color:var(--accent);font-size:12px;font-weight:700}.section-heading h2,.section-heading p{margin:0}.section-heading h2{font-size:30px;letter-spacing:-.035em}.section-heading p{color:var(--muted)}details{border-top:1px solid var(--line)}details:last-of-type{border-bottom:1px solid var(--line)}summary{position:relative;padding:22px 44px 22px 0;cursor:pointer;list-style:none;font-size:17px;font-weight:650}summary::-webkit-details-marker{display:none}summary:after{content:"＋";position:absolute;right:5px;top:20px;color:var(--muted);font-size:20px;font-weight:400;transition:transform .2s ease}details[open] summary:after{transform:rotate(45deg)}details p{max-width:760px;margin:-4px 44px 24px 0;color:var(--muted)}details a,.inline-action{color:var(--accent);text-underline-offset:3px}.inline-action{display:flex;justify-content:space-between;margin-top:18px;padding:18px 20px;border-radius:18px;background:var(--accent-soft);font-weight:650;text-decoration:none}.contact-card{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;padding:38px;border:1px solid rgba(232,138,10,.16);border-radius:30px;background:linear-gradient(135deg,rgba(255,243,220,.9),rgba(255,255,255,.72));box-shadow:var(--shadow)}.contact-card h2{margin:0;font-size:30px;letter-spacing:-.035em}.contact-card p{margin:10px 0 0;color:var(--muted)}.contact-note{align-self:end;padding:18px;border-radius:18px;background:rgba(255,255,255,.65);color:var(--muted);font-size:13px}footer{display:flex;justify-content:space-between;margin-top:50px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}footer a{text-decoration:none}
.contact-card{grid-template-columns:.85fr 1.15fr}.contact-copy{display:flex;flex-direction:column}.contact-copy .contact-note{align-self:stretch;margin-top:auto}.contact-card form{display:grid;gap:14px}.contact-card label span{display:block;margin-bottom:5px;color:var(--muted);font-size:13px;font-weight:650}.contact-card input,.contact-card select,.contact-card textarea{width:100%;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.72);color:var(--text);font:inherit;padding:12px 13px}.contact-card textarea{resize:vertical}.contact-card input:focus,.contact-card select:focus,.contact-card textarea:focus{outline:2px solid rgba(232,138,10,.28);border-color:var(--accent)}.contact-card button{min-height:48px;border:0;border-radius:14px;background:var(--accent);color:white;font:inherit;font-weight:700;cursor:pointer}.contact-card button:disabled{opacity:.6;cursor:wait}.contact-card form small{color:var(--muted);font-size:12px}.contact-card form small a{color:var(--accent)}#support-status{margin:0;font-size:14px;font-weight:650}#support-status.success{color:#16843c}#support-status.error{color:#c53b32}.support-trap{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}footer{gap:20px}
@media(max-width:720px){main{width:min(100% - 28px,920px)}.hero{padding:62px 0 40px}.quick-grid{grid-template-columns:repeat(2,1fr);margin-bottom:68px}.quick-card{min-height:140px}.contact-card{grid-template-columns:1fr;padding:26px}.contact-copy .contact-note{margin-top:22px}.support-section{margin-bottom:64px}footer{display:block}footer span{display:block;margin-top:8px}}
@media(max-width:420px){.quick-grid{gap:9px}.quick-card{padding:16px;border-radius:20px}.quick-card strong{font-size:15px}.quick-card small{font-size:12px}.section-heading h2,.contact-card h2{font-size:26px}summary{font-size:16px}}
@media(prefers-color-scheme:dark){:root{--bg:#111214;--surface:rgba(35,36,39,.76);--surface-strong:#242529;--text:#f5f5f7;--muted:#a1a1a6;--line:rgba(255,255,255,.10);--accent-soft:rgba(232,138,10,.14);--shadow:0 18px 60px rgba(0,0,0,.22)}.contact-card{background:linear-gradient(135deg,rgba(73,51,25,.72),rgba(35,36,39,.82))}.contact-note{background:rgba(255,255,255,.06)}.contact-card input,.contact-card select,.contact-card textarea{background:rgba(35,36,39,.72)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.quick-card,summary:after{transition:none}}