:root{
  --bg:#f6f7fb;--card:#ffffff;--ink:#141826;--muted:#5b6275;--line:#e3e6ef;
  --brand:#5b4bff;--brand2:#18b6c9;--brand-ink:#ffffff;
  --danger:#d93a3a;--danger-bg:#fdeeee;--warn:#b86e00;--warn-bg:#fff5e0;--ok:#16824a;--ok-bg:#e8f7ef;
  --info:#3b5bdb;--info-bg:#edf1ff;--shadow:0 6px 24px rgba(20,24,38,.08);--r:14px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0f1220;--card:#171b2e;--ink:#eef0f8;--muted:#a3a9c0;--line:#2a3050;
  --danger:#ff6b6b;--danger-bg:#3a1c22;--warn:#ffb648;--warn-bg:#3a2c14;--ok:#4cd590;--ok-bg:#15301f;
  --info:#8ea2ff;--info-bg:#1c2446;--shadow:0 6px 24px rgba(0,0,0,.35);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
a{color:var(--brand)}
img{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:16px;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;text-decoration:none;color:var(--ink);white-space:nowrap}
.logo .mark{width:30px;height:30px;border-radius:50%;background:conic-gradient(from 200deg,var(--brand),var(--brand2),var(--brand));box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 18%,transparent)}
.logo small{font-weight:600;color:var(--muted)}
nav.links{margin-left:auto;display:flex;gap:18px;align-items:center}
nav.links a{color:var(--muted);text-decoration:none;font-size:15px}
nav.links a:hover{color:var(--ink)}
nav.links a.btn,nav.links a.btn:hover{color:var(--brand-ink)}
@media (max-width:720px){nav.links .hide-sm{display:none}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;border:1px solid transparent;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;background:var(--brand);color:var(--brand-ink)}
.btn:hover{filter:brightness(1.06)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.small{min-height:38px;padding:0 14px;font-size:14px}
.btn.google{background:#fff;color:#1f1f1f;border-color:#dadce0}
.btn.line{background:#06c755;color:#fff}
.btn.block{width:100%}
.login .btn.block+.btn.block{margin-top:10px}
input[type=text],input[type=email],input[type=url],input[inputmode]{width:100%;min-height:48px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit}
input:focus{outline:2px solid color-mix(in srgb,var(--brand) 50%,transparent);border-color:var(--brand)}
.hero{padding:56px 0 34px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.25;margin:0 0 14px;letter-spacing:-.5px}
.hero h1 .grad{background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:var(--muted);max-width:640px;margin:0 auto 26px}
.urlform{display:flex;gap:10px;max-width:620px;margin:0 auto}
.urlform input{flex:1}
@media (max-width:560px){.urlform{flex-direction:column}}
.chips{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:center;margin-top:16px;color:var(--muted);font-size:14px}
section.block{padding:40px 0}
section.block h2{font-size:clamp(22px,3.4vw,30px);margin:0 0 8px}
section.block p.sub{color:var(--muted);margin:0 0 24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:820px){.grid3,.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:18px}
.card ul{margin:8px 0 0;padding-left:20px}
.card li{margin:4px 0}
.tag{display:inline-block;font-size:13px;font-weight:700;padding:2px 10px;border-radius:999px;background:var(--info-bg);color:var(--info)}
.tag.danger{background:var(--danger-bg);color:var(--danger)}.tag.warn{background:var(--warn-bg);color:var(--warn)}.tag.ok{background:var(--ok-bg);color:var(--ok)}
table.cmp{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
table.cmp th,table.cmp td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:15px}
table.cmp th{background:color-mix(in srgb,var(--brand) 8%,var(--card))}
.tablewrap{overflow-x:auto}
@media (max-width:560px){table.cmp th,table.cmp td{padding:8px 9px;font-size:14px}table.cmp td:first-child,table.cmp th{white-space:nowrap}}
.rondo{background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 14%,var(--card)),color-mix(in srgb,var(--brand2) 12%,var(--card)));border:1px solid var(--line);border-radius:18px;padding:24px}
.rondo h2,.rondo h3{margin-top:0}
.rondo .cta{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:700}
.faq details p{margin:10px 0 0;color:var(--muted)}
footer.foot{border-top:1px solid var(--line);margin-top:40px;padding:26px 0;color:var(--muted);font-size:14px}
footer.foot a{color:var(--muted)}
footer.foot .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
.prose{max-width:760px;margin:0 auto;padding:30px 16px 10px}
.prose h1{font-size:clamp(26px,4vw,36px);line-height:1.3}
.prose h2{margin-top:32px}
.prose .note{background:var(--warn-bg);color:var(--warn);padding:10px 14px;border-radius:10px;font-size:14px}
/* 會員頁 */
.app{padding:24px 0 40px}
.app>*+*{margin-top:16px}
.card .urlform{margin:0;max-width:none}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
.muted{color:var(--muted)}
.small{font-size:14px}
.err{color:var(--danger);font-size:14px;margin-top:8px;min-height:1em}
.okmsg{color:var(--ok);font-size:14px;margin-top:8px}
.login{max-width:420px;margin:30px auto}
.login .or{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;margin:18px 0}
.login .or::before,.login .or::after{content:"";flex:1;height:1px;background:var(--line)}
.stack>*+*{margin-top:12px}
.quota{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:15px}
.sites{display:grid;gap:14px;margin-top:16px}
.site h3{margin:0;font-size:18px;word-break:break-all}
.site .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.verifybox{margin-top:12px;background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:12px 14px;font-size:14px}
.verifybox code,.code{display:block;white-space:pre-wrap;word-break:break-all;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin:6px 0;font-family:ui-monospace,Consolas,monospace;font-size:13px}
.progress{height:10px;border-radius:99px;background:var(--line);overflow:hidden;margin:12px 0}
.progress>div{height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .6s}
.conclusion{border-radius:16px;padding:20px 22px;border:1px solid var(--line)}
.conclusion.danger{background:var(--danger-bg);border-color:color-mix(in srgb,var(--danger) 40%,transparent)}
.conclusion.warn{background:var(--warn-bg);border-color:color-mix(in srgb,var(--warn) 40%,transparent)}
.conclusion.ok{background:var(--ok-bg);border-color:color-mix(in srgb,var(--ok) 40%,transparent)}
.conclusion .label{font-size:13px;font-weight:800;letter-spacing:1px;opacity:.8}
.conclusion h2{margin:4px 0 8px;font-size:clamp(19px,3vw,24px);line-height:1.45}
.conclusion p{margin:4px 0}
.todo{counter-reset:t;list-style:none;padding:0;margin:10px 0 0}
.todo li{counter-increment:t;position:relative;padding:12px 14px 12px 50px;background:var(--card);border:1px solid var(--line);border-radius:12px;margin:8px 0}
.todo li::before{content:counter(t);position:absolute;left:14px;top:12px;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:24px 0 12px;border-bottom:1px solid var(--line)}
.tabs button{background:none;border:0;border-bottom:3px solid transparent;padding:10px 12px;font:inherit;font-weight:700;color:var(--muted);cursor:pointer;min-height:44px}
.tabs button.on{color:var(--ink);border-color:var(--brand)}
.tabs .n{font-size:12px;background:var(--line);border-radius:99px;padding:1px 8px;margin-left:4px}
.finding{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin:10px 0}
.finding h4{margin:6px 0;font-size:17px}
.finding .kv{margin:6px 0;font-size:15px}
.finding .kv b{display:inline-block;min-width:5.6em;margin-right:6px;color:var(--muted)}
.finding details{margin-top:8px;font-size:14px}
.finding ul{margin:6px 0;padding-left:20px;word-break:break-all}
.zone-msg{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:16px;color:var(--muted)}
.modal{position:fixed;inset:0;background:rgba(10,12,22,.55);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal .card{max-width:520px;width:100%}
.steps{display:flex;gap:6px;margin:6px 0 12px}
.steps span{flex:1;height:5px;border-radius:9px;background:var(--line)}
.steps span.on{background:var(--brand)}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:10px;z-index:60;font-size:15px}
.hidden{display:none!important}