.workbench, .image-workbench, .utility-shell, .feature-panel, .generator-grid,
.mindmap-workbench, .code-workbench, .scan-layout {
  background: rgba(255,253,247,.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.section-heading { position: relative; }
.section-heading::before {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  background: var(--orange);
  margin-bottom: 6px;
}

.tool-page-main { padding-bottom: 90px; }
.tool-page-main .tool-topbar { padding-top: 24px; }
.tool-page-intro { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: end; gap: 50px; margin: 26px 0 42px; }
.tool-page-intro h1 { margin: 0; font: 800 clamp(42px, 5.8vw, 72px)/1.08 "STKaiti", "KaiTi", serif; letter-spacing: -.045em; }
.tool-page-intro h1::after { content: ""; display: block; width: 56px; height: 4px; margin-top: 16px; background: linear-gradient(90deg, var(--orange), transparent); border-radius: 2px; }
.tool-page-intro .lead { max-width: 690px; margin: 18px 0 0; color: var(--muted); line-height: 1.9; }
.privacy-stamp { padding: 20px; color: var(--green); background: linear-gradient(180deg, #e8f0e3 0%, #dcead7 100%); border: 1px solid var(--green); transform: rotate(1deg); box-shadow: 4px 5px 0 rgba(29,98,69,.15); }
.privacy-stamp b { display: block; margin-bottom: 7px; font: 800 13px monospace; letter-spacing: .08em; }
.privacy-stamp small { color: #526458; line-height: 1.65; }
.tool-tabs { display: flex; gap: 0; overflow-x: auto; border: 1px solid var(--ink); border-bottom: 0; background: var(--paper-deep); }
.tool-tabs button { flex: 1; min-width: 130px; padding: 14px 18px; border: 0; border-right: 1px solid var(--ink); border-radius: 0; background: transparent; font-weight: 700; }
.tool-tabs button:last-child { border-right: 0; }
.tool-tabs button.active { color: #fff; background: var(--ink); }
.feature-panel { min-height: 470px; padding: 30px; background: var(--card); border: 1px solid var(--ink); box-shadow: var(--shadow); }
.feature-panel[hidden] { display: none; }
.feature-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 28px; }
.feature-copy h2 { margin: 0 0 8px; font: 750 28px "STKaiti", "KaiTi", serif; }
.feature-copy > p { margin: 0 0 24px; color: var(--muted); }
.compact-dropzone { min-height: 205px; border: 1px dashed var(--ink); box-shadow: none; }
.compact-dropzone .drop-icon { width: 58px; height: 58px; font-size: 28px; box-shadow: 3px 4px 0 var(--ink); }
.compact-dropzone strong { font-size: 18px; }
.selected-files, .batch-file-list { margin-top: 14px; border: 1px solid var(--line); }
.selected-files.empty-list, .batch-file-list.empty-list { padding: 28px; color: var(--muted); text-align: center; border-style: dashed; }
.selected-files > div { display: grid; grid-template-columns: 34px minmax(0,1fr) auto; gap: 12px; padding: 10px 13px; border-bottom: 1px solid var(--line); font-size: 12px; }
.selected-files > div:last-child { border-bottom: 0; }
.selected-files b { color: var(--orange); font: 700 10px monospace; }
.selected-files span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.selected-files small { color: var(--muted); }
.settings-card { align-self: start; padding: 24px; background: var(--paper-deep); border: 1px solid var(--ink); }
.settings-card h3 { margin: 0 0 20px; font: 750 20px "STKaiti", "KaiTi", serif; }
.settings-card label, .field { display: block; margin-bottom: 16px; color: #343d37; font-size: 11px; font-weight: 700; }
.settings-card input:not([type="checkbox"],[type="range"],[type="color"]), .settings-card select,
.field input:not([type="checkbox"],[type="range"],[type="color"]), .field select {
  width: 100%; min-height: 41px; margin-top: 7px; padding: 8px 10px; background: var(--card); border: 1px solid var(--line);
}
.settings-card input[type="range"] { width: 100%; margin-top: 9px; accent-color: var(--green); }
.settings-card input[type="color"] { display: block; width: 100%; height: 40px; margin-top: 7px; padding: 3px; border: 1px solid var(--line); background: var(--card); }
.settings-card .primary-button { width: 100%; margin-top: 8px; padding: 11px; }
.settings-card .hint { display: block; margin-top: 14px; color: var(--muted); line-height: 1.6; }
.pdf-text-layout { display:grid; grid-template-columns:minmax(290px,.7fr) minmax(0,1.3fr); gap:24px; }
.pdf-text-options { display:grid; gap:12px; margin-top:18px; padding:18px; background:var(--paper-deep); border:1px solid var(--line); }
.pdf-text-options label { display:grid; gap:7px; font-size:10px; font-weight:750; }
.pdf-text-options label:nth-child(2) { display:flex; align-items:center; }
.pdf-text-options input[type="text"] { min-height:40px; padding:8px 10px; background:var(--card); border:1px solid var(--line); }
.pdf-text-result { min-width:0; display:grid; grid-template-rows:auto 1fr auto; border:1px solid var(--ink); }
.pdf-text-result>header { display:flex; align-items:center; justify-content:space-between; gap:15px; padding:12px 14px; background:var(--paper-deep); border-bottom:1px solid var(--ink); }
.pdf-text-result>header>div { display:flex; align-items:center; gap:8px; }
.pdf-text-result>header strong { font-size:11px; }
.pdf-text-result>header span { color:var(--muted); font:9px monospace; }
.pdf-text-result>header button { padding:7px 9px; font-size:9px; }
.pdf-text-result textarea { min-height:520px; padding:18px; resize:vertical; border:0; font:11px/1.8 monospace; }
.pdf-text-result>small { padding:10px 14px; color:var(--muted); background:#fff2b7; border-top:1px solid #a98b2c; font-size:9px; line-height:1.6; }
.watermark-studio { display:grid; grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr); gap:24px; }
.watermark-source { min-width:0; }
.watermark-preview-card { margin-top:18px; border:1px solid var(--ink); background:#d5d0c6; }
.watermark-preview-card>header { display:flex; justify-content:space-between; gap:12px; padding:10px 13px; background:var(--paper-deep); border-bottom:1px solid var(--ink); font-size:10px; }
.watermark-preview-card>header span { color:var(--muted); font:9px monospace; }
#watermark-preview-stage { position:relative; width:max-content; max-width:100%; margin:20px auto; overflow:hidden; background:#fff; box-shadow:6px 7px 0 rgba(24,32,28,.24); }
#watermark-preview-canvas { display:block; max-width:100%; height:auto!important; }
#watermark-preview-overlay { position:absolute; inset:0; z-index:2; overflow:hidden; pointer-events:none; }
#watermark-preview-overlay span { position:absolute; font-weight:700; line-height:1; white-space:nowrap; transform-origin:center; }
#watermark-preview-overlay[data-layout="single"] span { left:50%; top:50%; translate:-50% -50%; }
#watermark-preview-overlay[data-layout="single"][data-position="top-left"] span { left:7%; top:8%; translate:0 0; }
#watermark-preview-overlay[data-layout="single"][data-position="top-right"] span { left:auto; right:7%; top:8%; translate:0 0; }
#watermark-preview-overlay[data-layout="single"][data-position="bottom-left"] span { left:7%; top:auto; bottom:8%; translate:0 0; }
#watermark-preview-overlay[data-layout="single"][data-position="bottom-right"] span { left:auto; right:7%; top:auto; bottom:8%; translate:0 0; }
#watermark-preview-overlay[data-layout="tile"] { display:grid; grid-template-columns:repeat(4,max-content); place-content:center; gap:var(--watermark-preview-gap,24px); }
#watermark-preview-overlay[data-layout="tile"] span { position:static; }
.watermark-settings { max-height:790px; overflow:auto; }
.settings-pair { display:grid; grid-template-columns:1fr 1fr; gap:9px; }
.settings-pair label { min-width:0; }
.tool-page-ad { min-height: auto; margin: 42px 0 0; }
.tool-page-footer { margin-top: 0; }
.batch-layout { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 22px; }
.batch-file-list { max-height: 470px; overflow: auto; }
.batch-file-list article { display: grid; grid-template-columns: 54px minmax(0,1fr) auto; align-items: center; gap: 12px; padding: 10px; border-bottom: 1px solid var(--line); }
.batch-file-list article:last-child { border-bottom: 0; }
.batch-file-list img { width: 54px; height: 44px; object-fit: cover; background: var(--paper); border: 1px solid var(--line); }
.batch-file-list strong, .batch-file-list small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.batch-file-list strong { font-size: 12px; }
.batch-file-list small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.batch-actions { display: flex; gap: 8px; margin-top: 12px; }
.progress-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 14px; margin: 18px 0 0; }
.progress-row progress { width: 100%; height: 9px; accent-color: var(--green); }
.progress-row span { color: var(--muted); font-size: 10px; }
.result-panel { margin-top: 25px; padding-top: 25px; border-top: 1px solid var(--ink); }
.result-panel-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 12px; }
.result-panel-header h3 { margin: 0; font: 750 22px "STKaiti", "KaiTi", serif; }
#batch-results article { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
#batch-results strong, #batch-results small { display: block; }
#batch-results strong { font-size: 12px; }
#batch-results small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.code-workbench { display: grid; grid-template-columns: 1fr 1fr; background: var(--card); border: 1px solid var(--ink); box-shadow: var(--shadow); }
.code-column + .code-column { border-left: 1px solid var(--ink); }
.code-column textarea { min-height: 540px; }
.code-toolbar { display: flex; align-items: end; gap: 9px; min-height: 72px; padding: 11px 13px; background: var(--paper-deep); border-bottom: 1px solid var(--ink); }
.code-toolbar .field { flex: 1; margin: 0; }
.code-toolbar .field input, .code-toolbar .field select { margin-top: 3px; min-height: 34px; }
.code-toolbar button { margin-bottom: 1px; white-space: nowrap; }
.mindmap-workbench { display: grid; grid-template-columns: minmax(320px,.72fr) minmax(0,1.28fr); min-height: 650px; background: var(--card); border: 1px solid var(--ink); box-shadow: var(--shadow); }
.mindmap-editor { border-right: 1px solid var(--ink); }
.mindmap-editor textarea { min-height: 600px; }
.mindmap-stage { position: relative; min-width: 0; overflow: hidden; background-color: #fffdf7; background-image: radial-gradient(#cfc8ba 1px,transparent 1px); background-size: 22px 22px; }
.mindmap-stage svg { width: 100%; height: 650px; }
.mindmap-actions { position: absolute; z-index: 2; top: 13px; right: 13px; display: flex; gap: 6px; padding: 6px; background: rgba(255,253,247,.92); border: 1px solid var(--ink); }
.generator-grid { display: grid; grid-template-columns: minmax(280px,.72fr) minmax(0,1.28fr); min-height: 510px; }
.generator-controls { padding: 27px; background: var(--paper-deep); border-right: 1px solid var(--ink); }
.generator-output { display: grid; place-items: center; align-content: center; min-width: 0; padding: 28px; background-image: linear-gradient(45deg,rgba(24,32,28,.025) 25%,transparent 25%),linear-gradient(-45deg,rgba(24,32,28,.025) 25%,transparent 25%); background-size: 24px 24px; }
.generator-output canvas { max-width: 100%; max-height: 390px; object-fit: contain; }
.generator-output .empty-state { min-height: 300px; }
.structured-fields { margin: 16px 0; padding: 15px; border: 1px solid var(--line); }
.color-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.scan-layout { display: grid; grid-template-columns: minmax(260px,.7fr) minmax(0,1.3fr); gap: 24px; }
.scan-media { min-height: 360px; display: grid; place-items: center; overflow: hidden; background: #d7d1c7; border: 1px solid var(--ink); }
.scan-media img, .scan-media video { max-width: 100%; max-height: 420px; }
.scan-result textarea { min-height: 230px; border: 1px solid var(--ink); }
.scan-result .button-row { border: 0; padding-left: 0; }

.utility-shell { background: var(--card); border: 1px solid var(--ink); box-shadow: var(--shadow); }
.utility-nav { display: grid; grid-template-columns: repeat(5, 1fr); background: var(--paper-deep); border-bottom: 1px solid var(--ink); }
.utility-nav a { min-width: 0; padding: 13px 9px; text-align: center; text-decoration: none; border-right: 1px solid var(--ink); font-size: 11px; font-weight: 750; }
.utility-nav a:last-child { border-right: 0; }
.utility-nav a.active { color: #fff; background: var(--ink); }
.developer-nav { grid-template-columns:repeat(6,1fr); }
.utility-panel { min-height: 520px; }
.utility-panel[hidden] { display: none; }
.utility-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: 520px; }
.utility-pane { min-width: 0; display: flex; flex-direction: column; }
.utility-pane + .utility-pane { border-left: 1px solid var(--ink); }
.utility-pane textarea { flex: 1; min-height: 380px; }
.aes-local-card { padding:28px; background:#172b22; color:#fff; border-top:1px solid var(--ink); }
.aes-local-card>header { display:flex; justify-content:space-between; align-items:end; gap:18px; margin-bottom:18px; }
.aes-local-card h2 { margin:5px 0 0; font:800 27px "STKaiti","KaiTi",serif; }
.aes-local-card header span { color:#f2c94c; font:800 9px ui-monospace,monospace; letter-spacing:.14em; }
.aes-local-card header p { max-width:330px; margin:0; color:#b7c3bc; font-size:10px; line-height:1.6; }
.aes-local-grid { display:grid; grid-template-columns:1fr 250px 1fr; gap:12px; }
.aes-local-grid>label,.aes-local-controls>label { display:grid; gap:6px; color:#dbe4de; font-size:9px; }
.aes-local-grid textarea { min-height:180px; color:var(--ink); background:#fff; border:1px solid #87958e; }
.aes-local-controls { display:grid; align-content:start; gap:12px; }
.aes-local-controls input[type=password],.aes-local-controls input[type=text] { width:100%; padding:10px; color:var(--ink); background:#fff; border:1px solid #87958e; }
.aes-local-controls>div { display:grid; grid-template-columns:1fr 1fr; gap:7px; }
.aes-local-controls button,.aes-local-card>.utility-actions button { color:#fff; border-color:#87958e; background:transparent; }
.aes-local-controls .primary-button { color:var(--ink); background:#f2c94c; border-color:#f2c94c; }
.aes-local-controls small,.aes-local-card .local-privacy-note { color:#9eaea5; font:8px/1.6 ui-monospace,monospace; }
.aes-local-card>.utility-actions { margin:12px 0 0; padding:0; border:0; background:transparent; }
.utility-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-height: 62px; padding: 11px 13px; background: var(--paper-deep); border-bottom: 1px solid var(--ink); }
.utility-actions.bottom { border-top: 1px solid var(--ink); border-bottom: 0; }
.utility-actions .field { min-width: 125px; margin: 0; }
.utility-actions .field select, .utility-actions .field input { min-height: 34px; margin-top: 3px; }
.utility-status { margin-left: auto; color: var(--muted); font: 10px/1.4 monospace; }
.time-board { display: grid; grid-template-columns: .8fr 1.2fr; min-height: 520px; }
.clock-card { display: grid; place-items: center; align-content: center; padding: 40px; color: #fff; background: var(--ink); text-align: center; }
.clock-card time { font: 800 clamp(36px, 5vw, 64px)/1 monospace; letter-spacing: -.06em; }
.clock-card span { margin-top: 16px; color: #afc5b8; font-size: 12px; }
.time-converter, .hash-card { padding: 34px; }
.time-converter h2, .hash-card h2 { margin: 0 0 8px; font: 750 26px "STKaiti", "KaiTi", serif; }
.time-converter > p, .hash-card > p { margin: 0 0 24px; color: var(--muted); font-size: 12px; }
.wide-field { display: block; margin-bottom: 17px; font-size: 11px; font-weight: 750; }
.wide-field input, .wide-field select, .wide-field textarea { width: 100%; min-height: 42px; margin-top: 7px; padding: 9px 11px; background: var(--paper); border: 1px solid var(--line); }
.wide-field textarea { min-height: 160px; resize: vertical; font: 12px/1.7 monospace; }
.result-list { margin-top: 22px; border: 1px solid var(--line); }
.result-list div { display: grid; grid-template-columns: 105px minmax(0, 1fr); gap: 12px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.result-list div:last-child { border-bottom: 0; }
.result-list b { color: var(--muted); font-size: 10px; }
.result-list code { overflow-wrap: anywhere; font: 11px/1.55 monospace; }
.hash-layout { display: grid; grid-template-columns: 1fr 1fr; min-height: 520px; }
.hash-card + .hash-card { border-left: 1px solid var(--ink); }
.hash-output { min-height: 112px !important; }
.uuid-output { min-height: 220px !important; }
.file-hash-meta { display: block; margin: 4px 0 10px; color: var(--muted); font: 700 10px monospace; }
.file-hash-meta:empty::before { content: "未选择文件"; }
/* HTTP 状态码速查 */
.http-status-panel { min-width: 0; border: 1px solid var(--ink); background: var(--card); }
.http-status-toolbar { display: flex; flex-wrap: wrap; gap: 12px; padding: 12px 14px; background: var(--paper-deep); border-bottom: 1px solid var(--ink); }
.http-status-toolbar .field { min-width: 140px; margin: 0; }
.http-status-toolbar .field input, .http-status-toolbar .field select { min-height: 36px; margin-top: 3px; }
.http-status-list { display: grid; gap: 8px; padding: 14px; max-height: 560px; overflow: auto; }
.http-status-row { position: relative; display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 4px 14px; padding: 13px 15px; background: var(--card); border: 1px solid var(--line); }
.http-status-row b { grid-row: 1 / 3; align-self: start; color: var(--green-dark); font: 850 20px/1.2 ui-monospace, monospace; }
.http-status-row strong { font: 750 14px "STKaiti", "KaiTi", serif; }
.http-status-row p { grid-column: 2; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.http-status-cls { position: absolute; top: 10px; right: 10px; padding: 2px 7px; border: 1px solid var(--line); border-radius: 99px; font: 700 9px monospace; }
.http-status-cls.cls-1xx { color: #1a3e5c; background: #dcebf4; border-color: #8cb4d4; }
.http-status-cls.cls-2xx { color: #124631; background: #e9f4eb; border-color: #8fb69a; }
.http-status-cls.cls-3xx { color: #5c4a1e; background: #f5ecd7; border-color: #d4bc7a; }
.http-status-cls.cls-4xx { color: #691a2e; background: #f4dce0; border-color: #d49caa; }
.http-status-cls.cls-5xx { color: #7c4a1a; background: #f4ece0; border-color: #d4aa7a; }
@media (max-width: 520px) { .http-status-row { grid-template-columns: 52px minmax(0,1fr); } .http-status-cls { position: static; grid-column: 2; width: max-content; margin-top: 2px; } }
.regex-layout { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); min-height: 560px; }
.regex-controls { padding: 14px 14px 0; background: var(--paper-deep); }
.regex-controls .wide-field { margin: 0; }
.regex-pattern-row { display: grid; grid-template-columns: auto minmax(0,1fr) auto 62px; align-items: center; margin-top: 7px; background: var(--card); border: 1px solid var(--line); }
.regex-pattern-row code { padding: 0 9px; color: var(--orange); font-weight: 800; }
.regex-pattern-row input { min-width: 0; min-height: 43px; margin: 0; border: 0; border-left: 1px solid var(--line); background: transparent; }
.regex-pattern-row input:last-child { text-align: center; border-left: 1px solid var(--ink); }
.regex-layout .utility-pane > textarea { min-height: 355px; }
.regex-preview { min-height: 185px; max-height: 260px; padding: 20px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; border-bottom: 1px solid var(--ink); font: 12px/1.9 monospace; }
.regex-preview mark { padding: 2px 0; color: inherit; background: #f6d86d; box-shadow: 0 0 0 1px #d5a82f; }
.regex-matches { max-height: 330px; overflow: auto; padding: 12px; }
.regex-matches article { padding: 12px; border-bottom: 1px solid var(--line); }
.regex-matches article:last-child { border-bottom: 0; }
.regex-matches header { display: flex; justify-content: space-between; margin-bottom: 7px; }
.regex-matches header b { color: var(--orange); font: 800 10px monospace; }
.regex-matches header span { color: var(--muted); font: 10px monospace; }
.regex-matches article > code { display: block; overflow-wrap: anywhere; font: 12px/1.6 monospace; }
.regex-matches dl { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 4px 12px; margin: 10px 0 0; padding-top: 9px; border-top: 1px dashed var(--line); }
.regex-matches dt { color: var(--muted); font: 10px monospace; }
.regex-matches dd { margin: 0; overflow-wrap: anywhere; font: 10px/1.5 monospace; }
.utility-inline-empty { padding: 55px 20px; color: var(--muted); text-align: center; }
.token-input { font-size: 11px !important; overflow-wrap: anywhere; }
.jwt-result { height: 100%; max-height: 560px; overflow: auto; }
.jwt-result section + section { border-top: 1px solid var(--ink); }
.jwt-result section header { display: flex; justify-content: space-between; align-items: center; padding: 9px 13px; background: var(--paper-deep); border-bottom: 1px solid var(--line); }
.jwt-result section header b { color: var(--orange); font: 800 10px monospace; letter-spacing: .1em; }
.jwt-result section header button { padding: 5px 8px; font-size: 9px; }
.jwt-result pre { min-height: 115px; margin: 0; padding: 16px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font: 11px/1.7 monospace; }
.jwt-times { padding: 15px; white-space: pre-line; color: #5f5422; background: #fff2b7; border-top: 1px solid #a98b2c; font-size: 10px; line-height: 1.75; }
.yaml-layout { display:grid; grid-template-columns:1fr 1fr; min-height:500px; }
.yaml-layout textarea { min-height:420px; }
.yaml-safety-note { display:flex; align-items:center; gap:14px; padding:12px 16px; color:#4e4525; background:#fff2b7; border-top:1px solid #a98b2c; font-size:9px; line-height:1.6; }
.yaml-safety-note b { flex:0 0 auto; font:800 8px monospace; letter-spacing:.12em; }
.color-tool-layout { display: grid; grid-template-columns: .85fr 1.15fr; min-height: 520px; }
.color-editor, .contrast-editor { padding: 32px; }
.color-editor { background: var(--paper-deep); border-right: 1px solid var(--ink); }
.color-editor h2, .contrast-editor h2, .base-converter h2, .naming-layout h2 { margin: 0 0 8px; font: 750 26px "STKaiti","KaiTi",serif; }
.color-editor > p, .contrast-editor > p, .base-converter p, .naming-layout p { margin: 0 0 24px; color: var(--muted); font-size: 12px; }
.color-picker-field { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin: -4px 0 18px; color: var(--muted); font-size: 10px; font-weight: 700; }
.color-picker-field input { width: 90px; height: 42px; padding: 3px; background: var(--card); border: 1px solid var(--line); }
.color-results code { cursor: copy; }
.contrast-preview { margin-top: 22px; padding: 28px; border: 1px solid var(--ink); font: 750 28px/1.2 "STKaiti","KaiTi",serif; transition: color .2s,background .2s; }
.contrast-preview small { font: 10px monospace; letter-spacing: .08em; }
.contrast-score { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; padding: 18px 0 12px; }
.contrast-score strong { font: 850 35px/1 monospace; letter-spacing: -.07em; }
.contrast-score span { color: var(--muted); text-align: right; font-size: 10px; }
.contrast-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.contrast-badges span { padding: 6px 9px; border: 1px solid var(--line); font-size: 9px; font-weight: 750; }
.contrast-badges .pass { color: var(--green); background: #e9f4eb; border-color: #8fb69a; }
.contrast-badges .fail { color: #8b1e15; background: #fff0ed; border-color: #d3a09a; }
.base-converter { display: grid; grid-template-columns: .72fr 1.28fr; min-height: 520px; }
.base-converter > div:first-child { padding: 34px; background: var(--paper-deep); border-right: 1px solid var(--ink); }
.utility-actions.plain { min-height: 0; padding: 0; background: transparent; border: 0; }
.base-results { align-self: center; margin: 25px; }
.base-results div { grid-template-columns: 90px minmax(0,1fr) auto; align-items: center; }
.base-results code { max-height: 90px; overflow: auto; }
.base-results button { padding: 6px 8px; font-size: 9px; }
.naming-layout { display: grid; grid-template-columns: .72fr 1.28fr; min-height: 520px; }
.naming-input { padding: 34px; background: var(--paper-deep); border-right: 1px solid var(--ink); }
.naming-input textarea { min-height: 240px; }
.naming-results { align-self: center; margin: 25px; border: 1px solid var(--line); }
.naming-results:empty::before { content: "转换结果会显示在这里"; display: block; padding: 95px 20px; color: var(--muted); text-align: center; }
.naming-results article { display: grid; grid-template-columns: 130px minmax(0,1fr) auto; align-items: center; gap: 12px; padding: 12px; border-bottom: 1px solid var(--line); }
.naming-results article:last-child { border-bottom: 0; }
.naming-results b { color: var(--muted); font: 10px monospace; }
.naming-results code { overflow-wrap: anywhere; font: 11px/1.55 monospace; }
.naming-results button { padding: 6px 8px; font-size: 9px; }

@media (max-width: 850px) {
  .tool-page-intro, .feature-layout, .batch-layout, .mindmap-workbench, .generator-grid, .scan-layout, .pdf-text-layout, .watermark-studio, .time-board, .hash-layout, .regex-layout, .yaml-layout, .color-tool-layout, .base-converter, .naming-layout { grid-template-columns: 1fr; }
  .privacy-stamp { width: min(340px, 100%); }
  .settings-card { width: 100%; }
  .mindmap-editor, .generator-controls { border-right: 0; border-bottom: 1px solid var(--ink); }
  .hash-card + .hash-card, .regex-layout .utility-pane + .utility-pane, .yaml-layout .utility-pane + .utility-pane { border-left: 0; border-top: 1px solid var(--ink); }
  .color-editor, .base-converter > div:first-child, .naming-input { border-right: 0; border-bottom: 1px solid var(--ink); }
  .mindmap-editor textarea { min-height: 430px; }
  .aes-local-grid { grid-template-columns:1fr; }
  .mindmap-stage svg { height: 560px; }
}
@media (max-width: 650px) {
  .feature-panel { padding: 18px; }
  .code-workbench { grid-template-columns: 1fr; }
  .code-column + .code-column { border-left: 0; border-top: 1px solid var(--ink); }
  .code-column textarea { min-height: 390px; }
  .code-toolbar { align-items: stretch; flex-direction: column; }
  .tool-tabs button { min-width: 112px; padding: 12px 10px; font-size: 11px; }
  .tool-page-intro h1 { font-size: 40px; }
  .generator-controls { padding: 19px; }
  .color-pair { grid-template-columns: 1fr; }
  .utility-nav { grid-template-columns: 1fr 1fr; }
  .utility-nav a { border-bottom: 1px solid var(--ink); }
  .utility-grid { grid-template-columns: 1fr; }
  .utility-pane + .utility-pane { border-left: 0; border-top: 1px solid var(--ink); }
  .utility-pane textarea { min-height: 300px; }
  .aes-local-card { padding:22px 16px; }
  .aes-local-card>header { align-items:start; flex-direction:column; }
  .utility-status { width: 100%; margin-left: 0; }
  .time-converter, .hash-card { padding: 23px 18px; }
  .result-list div { grid-template-columns: 1fr; gap: 3px; }
  .color-editor, .contrast-editor, .base-converter > div:first-child, .naming-input { padding: 23px 18px; }
  .base-results, .naming-results { margin: 16px; }
  .base-results div { grid-template-columns: 1fr auto; }
  .base-results div b { grid-column: 1 / -1; }
  .naming-results article { grid-template-columns: 1fr auto; }
  .naming-results article b { grid-column: 1 / -1; }
  .regex-pattern-row { grid-template-columns: auto minmax(0,1fr) auto 52px; }
  .pdf-text-result>header { align-items:flex-start; flex-direction:column; }
  .settings-pair { grid-template-columns:1fr; }
}

@media (prefers-reduced-motion: no-preference) {
  .tool-page-intro h1 { animation: reveal .5s ease both; }
  .tool-page-intro .lead { animation: reveal .5s ease .1s both; }
  .tool-page-intro .privacy-stamp { animation: reveal .5s ease .18s both; }
}