/* ============ 图链 ImageLink ============ */
:root {
  /* Ink 中性色阶（冷色，服务器/终端的世界） */
  --bg: #0b0d14;
  --bg-soft: #0e1119;
  --panel: #11141c;
  --panel-2: #161a24;
  --panel-3: #1a1e28;
  --border: rgba(238, 240, 245, 0.08);
  --border-strong: rgba(238, 240, 245, 0.15);
  --text: #eef0f5;
  --muted: #a3a9b8;
  --faint: #7a8296;
  --accent: #5b8cff;
  --success: #4cc38a;
  --warn: #d9a24a;
  --danger: #e5484d;
  --code-bg: #0c1018;
  --btn-primary-bg: #eef0f5;
  --btn-primary-fg: #0b0d14;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}
[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-soft: #eef1f6;
  --panel: #ffffff;
  --panel-2: #f2f4f8;
  --panel-3: #eceff4;
  --border: rgba(17, 24, 39, 0.08);
  --border-strong: rgba(17, 24, 39, 0.15);
  --text: #111827;
  --muted: #4b5565;
  --faint: #6b7487;
  --accent: #1d4ed8;
  --success: #16a34a;
  --warn: #b45309;
  --danger: #dc2626;
  --code-bg: #f4f6fa;
  --btn-primary-bg: #111827;
  --btn-primary-fg: #ffffff;
  --shadow: 0 1px 2px rgba(17, 24, 39, 0.06);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .45; }
svg { display: block; }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* 顶栏 */
.topbar { border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 20; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); }
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-size: 16px; font-weight: 600; line-height: 1.3; }
.brand-name span { font-size: 12px; font-weight: 500; color: var(--faint); margin-left: 4px; }
.brand-sub { font-size: 11.5px; color: var(--faint); }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.privacy-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); border: 1px solid var(--border); background: var(--panel); padding: 6px 12px; border-radius: 999px; white-space: nowrap; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); flex: 0 0 auto; }
.privacy-badge.offline { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.privacy-badge.offline .status-dot { background: var(--warn); }
.icon-btn { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--border); background: var(--panel); border-radius: 10px; color: var(--muted); transition: color .15s, border-color .15s; }
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }
.icon-btn svg { width: 18px; height: 18px; }

/* Hero */
.hero { padding: 48px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(30px, 4.4vw, 44px); line-height: 1.18; margin: 0 0 16px; letter-spacing: -0.015em; font-weight: 500; }
.hero p { color: var(--muted); margin: 0 auto; font-size: 15px; line-height: 1.9; max-width: 640px; }
.hero p b { color: var(--text); font-weight: 500; }
.steps { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.step { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--muted); }
.step b { font-size: 12px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 500; }
.step-arrow { color: var(--faint); display: grid; place-items: center; }
.step-arrow svg { width: 16px; height: 16px; }

/* 主栅格 */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 16px; }
.panel-head h2 { margin: 0; font-size: 14px; font-weight: 600; }
.panel-head h2::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); vertical-align: -1px; margin-right: 9px; }
.head-spaced { margin-top: 28px; }
.head-note { font-size: 12px; color: var(--faint); }
.text-btn { border: 0; background: none; color: var(--accent); font-size: 12.5px; padding: 2px 0; }
.text-btn:hover { text-decoration: underline; }

/* 上传区 */
.dropzone { border: 1.5px dashed var(--border-strong); border-radius: 12px; background: var(--panel-2); padding: 32px 20px 28px; text-align: center; transition: border-color .15s, background-color .15s; outline: none; }
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--panel-2)); }
.dz-icon { width: 48px; height: 48px; margin: 0 auto 14px; border-radius: 12px; display: grid; place-items: center; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.dz-icon svg { width: 26px; height: 26px; }
.dz-title { font-size: 15px; font-weight: 500; margin-bottom: 6px; }
.dz-sub { color: var(--muted); font-size: 12.5px; }
.linklike { color: var(--accent); font-weight: 500; }
.dz-formats { margin-top: 16px; font-size: 11px; color: var(--faint); letter-spacing: .02em; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
kbd { font-family: inherit; font-size: 11px; border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 5px; padding: 1px 5px; background: var(--panel-3); }

/* 队列 */
.queue-wrap { margin-top: 16px; }
.mini-label { font-size: 11.5px; color: var(--faint); margin-bottom: 8px; }
.queue { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
.queue-item { position: relative; flex: 0 0 64px; height: 64px; border-radius: 8px; border: 2px solid transparent; overflow: hidden; background: var(--panel-3); padding: 0; }
.queue-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.queue-item.active { border-color: var(--accent); }
.queue-item .q-num { position: absolute; left: 3px; bottom: 3px; font-size: 10px; background: rgba(0,0,0,.65); color: #fff; border-radius: 4px; padding: 0 4px; }
.queue-item .q-del { position: absolute; right: 2px; top: 2px; width: 17px; height: 17px; border: 0; border-radius: 5px; background: rgba(0,0,0,.68); color: #fff; display: grid; place-items: center; padding: 0; opacity: 0; transition: opacity .15s; }
.queue-item .q-del svg { width: 11px; height: 11px; }
.queue-item:hover .q-del { opacity: 1; }

/* 预览 */
.preview-box { height: 190px; border-radius: 12px; border: 1px solid var(--border); background: var(--code-bg); background-image: linear-gradient(45deg, var(--panel-3) 25%, transparent 25%), linear-gradient(-45deg, var(--panel-3) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--panel-3) 75%), linear-gradient(-45deg, transparent 75%, var(--panel-3) 75%); background-size: 16px 16px; background-position: 0 0, 0 8px, 8px -8px, -8px 0; display: grid; place-items: center; overflow: hidden; }
.preview-box img { max-width: 100%; max-height: 100%; object-fit: contain; }
.preview-placeholder { display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--faint); font-size: 12.5px; background: var(--panel); padding: 16px 24px; border-radius: 12px; border: 1px solid var(--border); }
.preview-placeholder svg { width: 32px; height: 32px; opacity: .55; }
.preview-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 12px; font-size: 11.5px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.preview-meta b { color: var(--text); font-weight: 500; }

/* 表单 */
.settings { display: flex; flex-direction: column; gap: 16px; }
.field label { display: block; font-size: 12.5px; font-weight: 500; margin-bottom: 8px; }
.field label small { font-weight: 400; color: var(--faint); margin-left: 5px; font-size: 11px; }
.seg { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; background: var(--panel-2); border: 1px solid var(--border); padding: 4px; border-radius: 10px; }
.seg button { border: 0; background: transparent; color: var(--muted); border-radius: 7px; padding: 8px 2px; font-size: 12.5px; font-weight: 500; transition: color .15s, background-color .15s; }
.seg button:hover { color: var(--text); }
.seg button.active { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
select, input[type="text"], input[type="url"] { width: 100%; background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; outline: none; transition: border-color .15s; font-size: 13px; }
select:focus, input:focus { border-color: var(--accent); }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 20 20' fill='none' stroke='%238a96ad' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 11px center; padding-right: 32px; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.color-row { display: flex; align-items: center; gap: 10px; }
input[type="color"] { width: 44px; height: 36px; padding: 2px; border: 1px solid var(--border); border-radius: 9px; background: var(--panel-2); cursor: pointer; }
#fillHex { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--muted); }
.settings-note { font-size: 11.5px; color: var(--faint); background: var(--panel-2); border: 1px solid var(--border); border-left: 2px solid var(--accent); border-radius: 8px; padding: 10px 12px; line-height: 1.6; }
.btn-row { display: flex; gap: 8px; }
.btn { border: 0; border-radius: 10px; padding: 11px 16px; font-size: 13.5px; font-weight: 500; display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: background-color .15s, border-color .15s, color .15s; }
.btn svg { width: 16px; height: 16px; }
.btn-primary { flex: 1; color: var(--btn-primary-fg); background: var(--btn-primary-bg); }
.btn-primary:not(:disabled):hover { background: var(--text); color: var(--bg); }
[data-theme="light"] .btn-primary:not(:disabled):hover { background: #1f2937; }
.btn-ghost { background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); }
.btn-ghost:not(:disabled):hover { color: var(--text); border-color: var(--border-strong); }
.btn.full { width: 100%; }

/* 结果区 */
.empty-result { min-height: 320px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: var(--faint); text-align: center; border: 1px dashed var(--border); border-radius: 12px; background: var(--panel-2); padding: 32px; }
.empty-result b { color: var(--muted); font-size: 14px; font-weight: 500; margin-top: 8px; }
.empty-result span { font-size: 12px; }
.empty-ring { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.empty-ring svg { width: 28px; height: 28px; }
.tabs { display: flex; gap: 4px; overflow-x: auto; padding-bottom: 2px; margin-bottom: 12px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab { flex: 0 0 auto; border: 1px solid transparent; background: var(--panel-2); color: var(--muted); border-radius: 8px; padding: 7px 13px; font-size: 12.5px; font-weight: 500; white-space: nowrap; transition: color .15s, background-color .15s, border-color .15s; }
.tab:hover { color: var(--text); border-color: var(--border-strong); }
.tab.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.code-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.code-head > div:first-child { font-size: 12.5px; font-weight: 500; display: flex; align-items: baseline; gap: 9px; }
.char-count { color: var(--faint); font-size: 11px; font-weight: 400; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.code-head-actions { display: flex; gap: 8px; }
.mini-btn { border: 1px solid var(--border); background: var(--panel-2); color: var(--muted); border-radius: 8px; padding: 5px 11px; font-size: 11.5px; font-weight: 500; transition: color .15s, border-color .15s, background-color .15s; }
.mini-btn:hover { color: var(--text); border-color: var(--border-strong); }
.mini-primary { color: var(--btn-primary-fg); border-color: transparent; background: var(--btn-primary-bg); }
.mini-primary:hover { color: var(--btn-primary-fg); background: var(--text); color: var(--bg); }
[data-theme="light"] .mini-primary:hover { background: #1f2937; color: #fff; }
.code-box { width: 100%; height: 128px; resize: vertical; background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px 13px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11.5px; line-height: 1.7; color: var(--text); outline: none; word-break: break-all; scrollbar-width: thin; }
.code-box:focus { border-color: var(--accent); }
.tab-desc { display: flex; align-items: flex-start; gap: 6px; font-size: 11.5px; color: var(--muted); margin: 9px 0 0; min-height: 20px; line-height: 1.6; }
.tab-desc #warnIcon { display: none; width: 14px; height: 14px; flex: 0 0 auto; margin-top: 3px; color: var(--warn); }
.tab-desc.warn #warnIcon { display: block; }
.tab-desc span { min-width: 0; }
.upload-banner { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); border-radius: 10px; padding: 8px 11px; margin-bottom: 12px; }
.upload-banner svg { width: 14px; height: 14px; flex: 0 0 auto; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.public-badge { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--success); background: color-mix(in srgb, var(--success) 8%, transparent); border: 1px solid color-mix(in srgb, var(--success) 26%, transparent); border-radius: 10px; padding: 8px 11px; margin-bottom: 12px; word-break: break-all; }
.badge-check { width: 14px; height: 14px; flex: 0 0 auto; color: var(--success); }
.public-badge span { flex: 1; }
.public-badge button { border: 0; background: none; color: var(--muted); font-size: 11.5px; text-decoration: underline; }
.result-preview { margin-top: 20px; }
.result-preview-img { height: 112px; border-radius: 10px; border: 1px solid var(--border); background: var(--code-bg); display: grid; place-items: center; overflow: hidden; }
.result-preview-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; }
.stat { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.stat span { display: block; font-size: 11px; color: var(--faint); }
.stat b { font-size: 13px; font-weight: 500; font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* 进阶面板 */
.advanced { margin-top: 20px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); overflow: hidden; }
.advanced summary { list-style: none; cursor: pointer; padding: 13px 15px; font-size: 12.5px; font-weight: 500; color: var(--muted); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary svg { width: 16px; height: 16px; flex: 0 0 auto; transition: transform .2s; }
.advanced[open] summary { color: var(--text); border-bottom: 1px solid var(--border); }
.advanced[open] summary svg { transform: rotate(180deg); }
.advanced-body { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.advanced-body p { margin: 0; font-size: 11.5px; color: var(--muted); line-height: 1.7; }
.advanced-body b { color: var(--text); }
.advanced-body .fine-print { color: var(--faint); font-size: 11px; }
.auto-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); cursor: pointer; }
.auto-row input { accent-color: var(--accent); width: 15px; height: 15px; flex: 0 0 auto; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.api-status { font-size: 11.5px; border-radius: 8px; padding: 9px 11px; background: var(--panel-3); border: 1px solid var(--border); word-break: break-all; }
.api-status.ok { color: var(--success); border-color: color-mix(in srgb, var(--success) 35%, transparent); }
.api-status.err { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }

/* 说明区 */
.info-section { margin: 48px 0 64px; }
.info-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.info-head h2 { margin: 0; font-size: 20px; font-weight: 500; letter-spacing: -0.01em; }
.info-head span { font-size: 12.5px; color: var(--faint); }
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.info-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; transition: border-color .15s; }
.info-card:hover { border-color: var(--border-strong); }
.info-card b { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.info-card p { margin: 0; font-size: 12px; color: var(--muted); line-height: 1.7; }
.info-card code, .notice code, .advanced-body code, .hero p code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--panel-3); border-radius: 4px; padding: 1px 4px; font-size: 11px; color: var(--text); }
.notice { display: flex; gap: 12px; margin-top: 16px; padding: 16px; border: 1px solid color-mix(in srgb, var(--warn) 26%, transparent); background: color-mix(in srgb, var(--warn) 6%, transparent); border-radius: 12px; }
.notice svg { width: 18px; height: 18px; color: var(--warn); flex: 0 0 auto; margin-top: 2px; }
.notice p { margin: 0; font-size: 12px; color: var(--muted); line-height: 1.8; }
.notice b { color: var(--text); font-weight: 500; }
.footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--faint); font-size: 12px; text-align: center; }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 12px); background: var(--panel-3); border: 1px solid var(--border-strong); color: var(--text); padding: 11px 20px; border-radius: 10px; font-size: 13px; font-weight: 500; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 50; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.success { border-color: color-mix(in srgb, var(--success) 45%, transparent); }
.toast.error { border-color: color-mix(in srgb, var(--danger) 45%, transparent); }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 40px; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 26px); }
  .panel { padding: 16px; }
  .privacy-badge { display: none; }
  .info-grid { grid-template-columns: 1fr; }
  .steps { gap: 8px; }
  .step { font-size: 12px; }
  .step-arrow { display: none; }
  .two-col { grid-template-columns: 1fr; }
  .hero p br { display: none; }
}