/* ═══════════════════════════════════════════
   IconSVR - 全站样式
   响应式 / 暗色模式 / 移动端适配
   ═══════════════════════════════════════════ */

/* ── Reset & Base ─────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fff; --bg2:#f8fafc; --bg3:#f1f5f9;
  --text:#0f172a; --text2:#475569; --text3:#94a3b8;
  --border:#e2e8f0; --border2:#cbd5e1;
  --primary:#2563eb; --primary-hover:#1d4ed8; --primary-light:#eff6ff;
  --success:#16a34a; --warning:#d97706; --danger:#dc2626;
  --radius:8px; --radius-lg:12px;
  --shadow:0 1px 3px rgba(0,0,0,.08); --shadow-lg:0 4px 24px rgba(0,0,0,.08);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  --max-w:1200px;
}
@media(prefers-color-scheme:dark){
  :root{
    --bg:#0f172a; --bg2:#1e293b; --bg3:#334155;
    --text:#f1f5f9; --text2:#cbd5e1; --text3:#64748b;
    --border:#334155; --border2:#475569;
    --primary:#3b82f6; --primary-hover:#60a5fa; --primary-light:#1e3a5f;
    --shadow:0 1px 3px rgba(0,0,0,.3); --shadow-lg:0 4px 24px rgba(0,0,0,.4);
  }
}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
img{max-width:100%;height:auto}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

/* ── Header ──────────────────────────── */
.header{background:var(--bg);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-size:20px;font-weight:700}
.logo:hover{color:var(--primary)}
.nav{display:flex;gap:24px}
.nav a{color:var(--text2);font-size:14px;font-weight:500;transition:color .2s}
.nav a:hover{color:var(--primary)}

/* ── Hero ────────────────────────────── */
.hero{background:linear-gradient(135deg,var(--primary-light),var(--bg2));border-bottom:1px solid var(--border);padding:60px 0;text-align:center}
.hero h1{font-size:36px;font-weight:800;margin-bottom:12px;letter-spacing:-.5px}
.hero-sub{font-size:18px;color:var(--text2);max-width:640px;margin:0 auto 32px;line-height:1.7}
.hero-search{display:flex;max-width:560px;margin:0 auto 16px;position:relative}
.hero-search input{flex:1;padding:14px 48px 14px 20px;border:2px solid var(--border2);border-radius:var(--radius-lg);font-size:16px;background:var(--bg);color:var(--text);outline:none;transition:border-color .2s;font-family:var(--font)}
.hero-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.hero-search input::placeholder{color:var(--text3)}
.hero-search button{position:absolute;right:4px;top:4px;bottom:4px;width:44px;border:none;background:transparent;cursor:pointer;font-size:18px;border-radius:var(--radius)}
.hero-search button:hover{background:var(--bg3)}
.hero-stats{font-size:14px;color:var(--text3)}
.hero-stats span{font-weight:700;color:var(--primary)}

/* ── Category Bar ────────────────────── */
.category-bar{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 24px}
.cat-btn{padding:7px 16px;border:1px solid var(--border);border-radius:20px;background:var(--bg);color:var(--text2);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;font-family:var(--font);white-space:nowrap}
.cat-btn:hover{border-color:var(--primary);color:var(--primary)}
.cat-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ── Icon Grid ───────────────────────── */
.icon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:32px}
.icon-card{display:flex;flex-direction:column;align-items:center;padding:16px 8px 12px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg);cursor:pointer;transition:all .2s;text-decoration:none;color:inherit}
.icon-card:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.icon-card-img{width:48px;height:48px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.icon-card-img img{display:block}
.icon-card-body{text-align:center;min-width:0}
.icon-card-name{display:block;font-size:12px;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:120px}
.icon-card-cat{display:block;font-size:11px;color:var(--text3);margin-top:2px}

/* ── Pagination ──────────────────────── */
.pagination{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px 0 48px}
.page-btn{padding:8px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text2);font-size:14px;cursor:pointer;transition:all .2s;font-family:var(--font)}
.page-btn:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.page-btn:disabled{opacity:.4;cursor:not-allowed}
.page-info{font-size:14px;color:var(--text3)}

/* ── Detail Page ─────────────────────── */
.detail-page{padding-top:32px;padding-bottom:64px}
.back-link{display:inline-block;margin-bottom:24px;font-size:14px;color:var(--text2)}
.back-link:hover{color:var(--primary)}
.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.detail-preview{display:flex;align-items:center;justify-content:center;min-height:280px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px}
.preview-svg img{display:block}
.detail-info h1{font-size:28px;font-weight:700;margin-bottom:12px}
.detail-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:24px}
.meta-tag{display:inline-block;padding:3px 10px;background:var(--bg3);border-radius:12px;font-size:12px;color:var(--text2)}
.meta-tag.meta-cat{background:var(--primary-light);color:var(--primary);font-weight:600}
.meta-tag.meta-tag-tag{font-size:11px}

.color-picker-group,.size-slider-group,.api-url-group,.html-code-group{margin-bottom:20px}
.color-picker-group label,.size-slider-group label,.api-url-group label,.html-code-group label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:8px}
.color-picker-row{display:flex;align-items:center;gap:8px}
.color-picker-row input[type=color]{width:40px;height:36px;border:1px solid var(--border2);border-radius:6px;cursor:pointer;padding:2px;background:var(--bg)}
.color-picker-row input[type=text]{flex:1;padding:8px 10px;border:1px solid var(--border2);border-radius:6px;font-size:14px;color:var(--text);background:var(--bg);outline:none;font-family:monospace}
.color-picker-row input[type=text]:focus{border-color:var(--primary)}
.btn-sm{padding:7px 12px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text2);font-size:12px;cursor:pointer;transition:all .2s;font-family:var(--font)}
.btn-sm:hover{border-color:var(--primary);color:var(--primary)}
#sizeSlider{width:100%}
#sizeValue{font-weight:700;color:var(--primary)}
.copy-row{display:flex;gap:8px}
.copy-row input{flex:1;padding:9px 10px;border:1px solid var(--border2);border-radius:6px;font-size:13px;font-family:monospace;color:var(--text);background:var(--bg2);outline:none}
.btn-copy{padding:7px 14px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text2);font-size:12px;cursor:pointer;transition:all .2s;font-family:var(--font);white-space:nowrap;flex-shrink:0}
.btn-copy:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.detail-actions{display:flex;gap:10px;margin-top:24px}
.btn{display:inline-block;padding:10px 20px;border:1px solid var(--border2);border-radius:var(--radius);background:var(--bg);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none;text-align:center;font-family:var(--font)}
.btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ── Docs Page ───────────────────────── */
.docs-page{padding-top:40px;padding-bottom:64px}
.docs-page h1{font-size:32px;margin-bottom:8px}
.docs-page h2{font-size:22px;margin:32px 0 12px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.docs-page h3{font-size:18px;margin:20px 0 8px}
.docs-page p{margin-bottom:12px;color:var(--text2);line-height:1.8}
.docs-page code{background:var(--bg3);padding:2px 6px;border-radius:4px;font-size:13px;font-family:'Fira Code','Cascadia Code',Consolas,monospace}
.docs-page pre{background:var(--bg3);padding:16px 20px;border-radius:var(--radius);overflow-x:auto;margin-bottom:16px}
.docs-page pre code{background:none;padding:0;font-size:13px;line-height:1.8}
.docs-page table{width:100%;border-collapse:collapse;margin-bottom:16px}
.docs-page th,.docs-page td{padding:10px 14px;border:1px solid var(--border);text-align:left;font-size:14px}
.docs-page th{background:var(--bg2);font-weight:600}
.docs-page .endpoint{display:inline-block;padding:3px 8px;border-radius:4px;font-size:12px;font-weight:700;margin-right:8px}
.endpoint-get{background:#dbeafe;color:#1d4ed8}
.endpoint-post{background:#fef3c7;color:#b45309}
.docs-page ul,.docs-page ol{padding-left:24px;margin-bottom:16px}
.docs-page li{margin-bottom:6px;color:var(--text2)}

/* ── Playground Page ─────────────────── */
.playground-page{padding-top:40px;padding-bottom:64px}
.playground-panel{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.playground-params label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:4px}
.playground-params input,.playground-params select{width:100%;padding:9px 12px;border:1px solid var(--border2);border-radius:6px;font-size:14px;color:var(--text);background:var(--bg);outline:none;margin-bottom:16px;font-family:var(--font)}
.playground-params input:focus,.playground-params select:focus{border-color:var(--primary)}

/* ── About Page ──────────────────────── */
.about-page{padding-top:40px;padding-bottom:64px}
.about-page h1{font-size:32px;margin-bottom:8px}
.about-page h2{font-size:22px;margin:28px 0 12px}
.about-page p{margin-bottom:12px;color:var(--text2);line-height:1.8}

/* ── Toast ───────────────────────────── */
.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%);padding:10px 24px;border-radius:var(--radius);font-size:14px;font-weight:500;z-index:9999;animation:toastIn .3s ease;box-shadow:var(--shadow-lg)}
.toast-success{background:#166534;color:#fff}
.toast-error{background:#991b1b;color:#fff}
.toast-out{opacity:0;transform:translateX(-50%) translateY(10px);transition:all .3s ease}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* ── Empty State ─────────────────────── */
.empty-state{grid-column:1/-1;text-align:center;padding:64px 20px;color:var(--text3);font-size:16px}

/* ── Footer ──────────────────────────── */
.footer{margin-top:auto;background:var(--bg2);border-top:1px solid var(--border);padding:40px 0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:24px}
.footer h4{font-size:14px;font-weight:700;margin-bottom:12px;color:var(--text)}
.footer p,.footer a{font-size:13px;color:var(--text2);line-height:2}
.footer a{display:block}
.footer code{background:var(--bg3);padding:4px 8px;border-radius:4px;font-size:12px;color:var(--primary);font-family:monospace}
.footer-bottom{border-top:1px solid var(--border);padding-top:16px;font-size:12px;color:var(--text3);text-align:center}

/* ── Responsive ──────────────────────── */
@media(max-width:768px){
  .hero{padding:40px 0}
  .hero h1{font-size:26px}
  .hero-sub{font-size:15px}
  .icon-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
  .icon-card{padding:12px 6px 10px}
  .icon-card-name{font-size:11px;max-width:90px}
  .detail-layout{grid-template-columns:1fr;gap:24px}
  .detail-preview{min-height:200px;padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  .playground-panel{grid-template-columns:1fr}
  .nav{gap:12px;font-size:13px}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .header .container{height:56px}
  .logo{font-size:17px}
  .hero h1{font-size:22px}
  .hero-search input{padding:12px 44px 12px 14px;font-size:14px}
  .category-bar{gap:6px;margin:20px 0 16px}
  .cat-btn{padding:5px 12px;font-size:12px}
  .icon-grid{grid-template-columns:repeat(3,1fr);gap:6px}
  .detail-info h1{font-size:22px}
  .copy-row{flex-direction:column}
}