*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

:root {
    --c-bg: #f0f4f8;
    --c-surface: #fff;
    --c-text: #1a2332;
    --c-text2: #5a6d80;
    --c-text3: #8b9eb0;
    --c-border: #dce4ec;
    --c-border-light: #edf1f5;
    --c-accent: #4f6ef7;
    --c-accent2: #7c5cfc;
    --c-accent3: #10b981;
    --c-red: #ef4444;
    --c-amber: rgba(255, 164, 2, 0.48);
    --c-cyan: #06b6d4;
    --c-pink: #ec4899;
    --c-orange: #f97316;
    --c-teal: #14b8a6;
    --c-indigo: #6366f1;
    --grad-accent: linear-gradient(135deg, #4f6ef7, #7c5cfc);
    --grad-json: linear-gradient(135deg, #f97316, #ef4444);
    --grad-crypto: linear-gradient(135deg, #7c5cfc, #ec4899);
    --grad-img: linear-gradient(135deg, #06b6d4, #10b981);
    --grad-qr: linear-gradient(135deg, #14b8a6, #6366f1);
    --grad-color: linear-gradient(135deg, #f59e0b, #ef4444);
    --grad-time: linear-gradient(135deg, #10b981, #06b6d4);
    --grad-uuid: linear-gradient(135deg, #ec4899, #f97316);
    --grad-regex: linear-gradient(135deg, #6366f1, #14b8a6);
    --grad-hex: linear-gradient(135deg, #14b8a6, #10b981);
    --grad-escape: linear-gradient(135deg, #f97316, #f59e0b);
    --grad-pink: linear-gradient(135deg, #ec4899, #a855f7);
    --grad-indigo: linear-gradient(135deg, #6366f1, #4f6ef7);
    --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, .08), 0 1px 4px rgba(0, 0, 0, .04);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .03);
    --radius: 8px;
    --radius-lg: 12px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
    --max-w: 1100px;
    --header-h: 60px;
}

html {
    scroll-behavior: smooth
}

body {
    font-family: var(--font);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    min-height: 100vh
}

a {
    color: inherit;
    text-decoration: none
}

.site-header {
    height: var(--header-h);
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center
}

.header-inner {
    width: 100%;
    max-width: var(--max-w);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--c-text)
}

.logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: var(--grad-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 700
}

.home-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--c-accent);
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 6px;
    transition: background .15s
}

.home-link:hover {
    background: #eef2ff
}

.site-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--c-text3);
    font-size: 13px;
}

.main-content {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 32px 24px
}

.main-content.wide {
    max-width: 960px
}

.page-hero {
    text-align: center;
    padding: 20px 24px 24px
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -.5px;
    line-height: 1.2;
    margin-bottom: 12px;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text
}

.page-hero .subtitle {
    font-size: 16px;
    color: var(--c-text2);
    max-width: 600px;
    margin: 0 auto
}

/* ===== Header Nav (dropdown) ===== */
.header-nav {
    display: flex;
    align-items: center;
    gap: 2px
}

.nav-dropdown {
    position: relative
}

.nav-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: none;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    color: var(--c-text2);
    cursor: pointer;
    border-radius: 6px;
    transition: all .15s;
    white-space: nowrap
}

.nav-trigger:hover, .nav-dropdown.open .nav-trigger {
    color: var(--c-accent);
    background: #eef2ff
}

.nav-dropdown:hover .nav-drop, .nav-dropdown.open .nav-drop {
    display: block
}

.nav-dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 6px
}

.nav-drop {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    z-index: 200;
    padding: 6px;
    animation: drop-in .15s ease
}

@keyframes drop-in {
    from {
        opacity: 0;
        transform: translateY(-4px)
    }
    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.nav-drop a {
    display: block;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--c-text);
    border-radius: 4px;
    transition: background .1s
}

.nav-drop a:hover {
    background: var(--c-bg);
    color: var(--c-accent)
}

.tools-grid {
    display: grid;
    grid-template-columns:repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    padding: 0 0 40px
}

.tool-card {
    background: var(--c-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    padding: 20px 22px;
    transition: all .2s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden
}

.tool-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: transparent
}

.tool-card .card-header {
    display: flex;
    align-items: center;
    gap: 12px
}

.tool-card .card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    flex-shrink: 0
}

.tool-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    line-height: 1.2
}

.tool-card p {
    font-size: 13px;
    color: var(--c-text2);
    line-height: 1.5;
    margin: 0
}

.tool-card .card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap
}

.tool-card .tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    background: #f0f4f8;
    color: var(--c-text2);
    font-weight: 500
}

/* Card colors */
.card-json .card-icon {
    background: var(--grad-json)
}

.card-json::before {
    background: var(--grad-json)
}

.card-time .card-icon {
    background: var(--grad-time)
}

.card-time::before {
    background: var(--grad-time)
}

.card-base64 .card-icon {
    background: var(--grad-crypto)
}

.card-base64::before {
    background: var(--grad-crypto)
}

.card-urlcode .card-icon {
    background: var(--grad-accent)
}

.card-urlcode::before {
    background: var(--grad-accent)
}

.card-qrcode .card-icon {
    background: var(--grad-qr)
}

.card-qrcode::before {
    background: var(--grad-qr)
}

.card-unicode .card-icon {
    background: var(--grad-pink)
}

.card-unicode::before {
    background: var(--grad-pink)
}

.card-color .card-icon {
    background: var(--grad-color)
}

.card-color::before {
    background: var(--grad-color)
}

.card-uuid .card-icon {
    background: var(--grad-uuid)
}

.card-uuid::before {
    background: var(--grad-uuid)
}

.card-regex .card-icon {
    background: var(--grad-indigo)
}

.card-regex::before {
    background: var(--grad-indigo)
}

.card-hexconv .card-icon {
    background: var(--grad-hex)
}

.card-hexconv::before {
    background: var(--grad-hex)
}

.card-escape .card-icon {
    background: var(--grad-escape)
}

.card-escape::before {
    background: var(--grad-escape)
}

.card-compress .card-icon {
    background: var(--c-teal)
}

.card-compress::before {
    background: var(--c-teal)
}

.card-tools .card-icon {
    background: var(--grad-uuid)
}

.card-tools::before {
    background: var(--grad-uuid)
}

.cat-section {
    margin-bottom: 5px;
    scroll-margin-top: 80px
}

.cat-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--c-text2);
    letter-spacing: .5px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px
}

.cat-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--c-border)
}

.tool-container {
    max-width: 960px;
    margin: 0 auto
}

.tool-header {
    padding: 20px 0
}

.tool-header .th-icon {
    width: 55px;
    height: 55px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15)
}

.tool-header .th-desc {
    color: var(--c-text2);
    font-size: 15px
}

.tool-body {
    font-family: var(--font);
    background: transparent;
    color: var(--c-text);
    line-height: 1.6;
    min-height: 55vh
}

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-text2);
    margin-bottom: 6px
}

input[type="text"], input[type="number"], input[type="datetime-local"], input[type="url"], select, textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font);
    background: var(--c-surface);
    color: var(--c-text);
    transition: all .15s;
    outline: none
}

textarea {
    font-family: var(--font-mono);
    font-size: 13px;
    resize: vertical;
    min-height: 140px;
    line-height: 1.6
}

input:focus, select:focus, textarea:focus {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(79, 110, 247, .1)
}

input[readonly], textarea[readonly] {
    background: #f8fafb;
    cursor: default
}

input[type="file"] {
    padding: 8px 10px;
    font-size: 14px
}

input[type="color"] {
    width: 40px;
    height: 36px;
    border: 1.5px solid var(--c-border);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2712%27 height=%2712%27 viewBox=%270 0 24 24%27 fill=%27none%27 stroke=%27%238b9eb0%27 stroke-width=%272%27%3E%3Cpolyline points=%276 9 12 15 18 9%27/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    background: var(--grad-accent);
    color: #fff;
    transition: all .15s;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(79, 110, 247, .2)
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(79, 110, 247, .3)
}

.btn:active {
    transform: scale(.97)
}

.btn-sm {
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: none
}

.btn-outline {
    background: var(--c-bg);
    background-image: radial-gradient(ellipse 80% 60% at 50% -10%, #e8eeff 0%, transparent 60%), radial-gradient(ellipse 60% 50% at 90% 80%, #e8f5ff 0%, transparent 50%);
    color: var(--c-accent);
    border: 1.5px solid var(--c-accent);
    box-shadow: none
}

.btn-outline:hover {
    background: #eef2ff;
    transform: none;
    box-shadow: none
}

.form-row {
    margin-bottom: 16px
}

.form-row-flex {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap
}

.form-row-flex > * {
    flex: 1;
    min-width: 120px
}

.btn-row {
    display: flex;
    gap: 10px;
    margin: 16px 0;
    flex-wrap: wrap
}

.color-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap
}

.color-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0
}

hr {
    border: none;
    border-top: 1.5px solid var(--c-border-light);
    margin: 20px 0
}

.result-box {
    min-height: 60px;
    margin-top: 16px;
    padding: 16px;
    border-radius: var(--radius);
    background: #f8fafb;
    border: 1px solid var(--c-border-light);
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all;
    max-height: 400px;
    overflow: auto;
    line-height: 1.6
}

.result-box.success {
    border-color: #a7f3d0;
    background: #f0fdf8
}

.result-box.error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b
}

.preview-box {
    margin-top: 16px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #fafbfc;
    padding: 20px 20px;
}

.preview-box img {
    max-width: 100%;
    max-height: 360px;
    display: block
}

.tab-bar {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--c-border-light)
}

.tab {
    padding: 9px 18px;
    border: none;
    background: none;
    background-image: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text2);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all .15s
}

.tab:hover {
    color: var(--c-text)
}

.tab.active {
    color: var(--c-accent);
    border-bottom-color: var(--c-accent);
    font-weight: 600
}

.sub-panel {
    display: none
}

.sub-panel.active {
    display: block
}

.diff-container {
    display: flex;
    gap: 16px;
    margin-bottom: 12px
}

.diff-side {
    flex: 1;
    min-width: 0
}

.diff-side label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-text2);
    margin-bottom: 6px
}

.diff-side textarea {
    min-height: 120px
}

.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    height: 40px;
    transform: translate(-50%, -50%);
    background: #1a2332;
    color: #fff;
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    z-index: 999;
    animation: toast-in .3s ease;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(12px)
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 20px 16px
    }

    .page-hero {
        padding: 32px 16px 24px
    }

    .page-hero h1 {
        font-size: 26px
    }

    .tools-grid {
        grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
        gap: 12px
    }

    .tool-card {
        padding: 16px 14px;
        gap: 8px
    }

    .tool-card .card-icon {
        width: 36px;
        height: 36px;
        font-size: 17px;
        border-radius: 8px
    }

    .tool-card h3 {
        font-size: 14px
    }

    .tool-body {
        padding: 20px 16px
    }

    .diff-container {
        flex-direction: column
    }

    .form-row-flex {
        flex-direction: column
    }

    .form-row-flex > * {
        min-width: 100%
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns:1fr
    }
}

/* ===== Detail page inline header ===== */
.tool-header.tool-header-inline {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 20px 0;
    flex-wrap: nowrap;
}

.tool-header.tool-header-inline > div:last-child {
    flex: 1;
    min-width: 0;
}

.tool-header.tool-header-inline h1 {
    font-size: 18px;
    margin: 0 0 4px 0
}

.tool-header.tool-header-inline .th-icon-sm svg {
    width: 22px;
    height: 22px
}

@media (max-width: 768px) {
    .tool-header.tool-header-inline {
        flex-direction: column;
        text-align: center;
        gap: 12px
    }

    .tool-header.tool-header-inline .th-icon-sm {
        margin: 0 auto
    }
}

/* ===== th-icon gradient colors ===== */
.th-icon.th-json {
    background: var(--grad-json)
}

.th-icon.th-time {
    background: var(--grad-time)
}

.th-icon.th-base64 {
    background: var(--grad-crypto)
}

.th-icon.th-urlcode {
    background: var(--grad-accent)
}

.th-icon.th-unicode {
    background: var(--grad-pink)
}

.th-icon.th-qrcode {
    background: var(--grad-qr)
}

.th-icon.th-color {
    background: var(--grad-color)
}

.th-icon.th-uuid {
    background: var(--grad-uuid)
}

.th-icon.th-regex {
    background: var(--grad-indigo)
}

.th-icon.th-hexconv {
    background: var(--grad-hex)
}

.th-icon.th-escape {
    background: var(--grad-escape)
}

/* ===== Timestamp page rows ===== */
.ts-now-row, .ts-row {
    display: flex;
    gap: 8px;
    align-items: stretch
}

.ts-now-row input, .ts-row input {
    flex: 1;
    min-width: 0
}

.ts-now-row .btn, .ts-row .btn {
    flex: 0 0 auto;
    white-space: nowrap
}

/* ===== Timestamp sections ===== */
.ts-section {
    margin-bottom: 16px;
    padding: 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    background: #fcfdff
}

.ts-section.ts-in {
    background: #f8faff;
    border-left: 3px solid var(--c-accent)
}

.ts-section.ts-out {
    background: #f8fdf9;
    border-left: 3px solid var(--c-accent3)
}

.ts-section .section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text2);
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 14px
}

.ts-section hr {
    border-color: var(--c-border-light);
    margin: 16px 0
}

/* ===== Toast notification ===== */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    background: #1a2332;
    color: #fff;
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    z-index: 9999;
    animation: toast-in .35s ease, toast-out .3s ease 1.5s forwards;
    pointer-events: none
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(12px)
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }
}

@keyframes toast-out {
    from {
        opacity: 1
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(-8px)
    }
}

/* ===== QR code grid ===== */
.qr-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 16px
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px
}

.qr-item canvas {
    max-width: 240px;
    height: auto;
    border-radius: 4px
}

.qr-label {
    font-size: 12px;
    color: var(--c-text2);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 6px
}

.qr-color-item input[type="color"] {
    width: 36px;
    height: 36px;
    border: 2px solid var(--c-border);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px;
    background: #fff
}

.qr-color-item input[type="text"] {
    width: 90px;
    padding: 6px 8px;
    font-family: var(--font-mono);
    font-size: 13px
}

.qr-color-item label {
    font-size: 12px;
    color: var(--c-text2);
    font-weight: 600;
    margin: 0
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius)
}

.qr-color-item input[type="color"] {
    width: 40px;
    height: 40px;
    border: 2px solid #fff;
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .12), inset 0 0 0 1px rgba(0, 0, 0, .06);
    transition: box-shadow .15s
}

.qr-color-item input[type="color"]:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, .18)
}

.qr-color-item input[type="text"] {
    width: 84px;
    padding: 7px 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    text-align: center;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    background: var(--c-surface)
}

.qr-color-item label {
    font-size: 12px;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: .3px
}

.qr-color-divider {
    width: 2px;
    height: 20px;
    background: var(--c-border);
    border-radius: 1px;
    flex-shrink: 0
}

/* ===== QR control row ===== */
.qr-ctrl-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin: 15px 0 18px
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius)
}

.qr-color-item input[type="color"] {
    width: 36px;
    height: 36px;
    border: 2px solid #fff;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .12)
}

.qr-color-item input[type="text"] {
    width: 78px;
    padding: 6px 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    text-align: center;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    background: var(--c-surface)
}

.qr-color-item label {
    font-size: 11px;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: .3px;
    white-space: nowrap
}

.qr-logo-item img {
    border-radius: 4px;
    object-fit: contain;
    flex-shrink: 0
}

/* QR preview box */
.qr-preview-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 160px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text3);
    font-size: 14px;
    margin-top: 12px;
    background: #fafbfc
}

#qr-preview:has(.qr-grid) .qr-preview-placeholder {
    display: none
}

.qr-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 12px
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px
}

.qr-item canvas {
    max-width: 240px;
    height: auto;
    border-radius: 4px
}

.qr-label {
    font-size: 12px;
    color: var(--c-text2);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center
}

.qr-logo-item {
    gap: 6px;
    min-width: 0
}

.qr-logo-item input[type="file"] {
    width: 90px;
    padding: 4px 2px;
    font-size: 11px;
    flex-shrink: 0
}

.re-flags-select {
    padding: 10px 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    color: var(--c-text);
    background: var(--c-surface);
    cursor: pointer;
    height: 44px;
    display: inline-flex;
    align-items: center;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235a6d80' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px
}

.re-flags-select:hover {
    border-color: var(--c-accent)
}

.re-flags-select:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(79, 110, 247, .1)
}

.btn option, .btn optgroup {
    color: var(--c-text);
    background: var(--c-surface)
}

.re-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.pw-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--c-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 8px 0
}

.pw-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--grad-accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(79, 110, 247, .3)
}

.pw-len-hints {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--c-text3)
}

.pw-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 16px
}

.pw-check {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    color: var(--c-text);
    cursor: pointer;
    font-weight: 400
}

.pw-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--c-accent)
}

.pw-result-row {
    display: flex;
    gap: 8px
}

.pw-result-row input {
    flex: 1
}

.pw-result-row .btn {
    flex: 0 0 auto
}

.pw-strength {
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600
}

.pw-bar {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--c-border);
    overflow: hidden
}

.pw-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width .4s
}

.pw-batch-list {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: #06b6d46e;
    padding: 15px 15px;
    border-radius: 10px;
    max-height: 500px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.pw-batch-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--c-bg);
    border-radius: var(--radius)
}

.pw-idx {
    width: 28px;
    font-size: 12px;
    color: var(--c-text3);
    text-align: right;
    flex-shrink: 0
}

.pw-batch-item code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 5px 0;
}

.pw-strength-text {
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    min-width: 60px;
    text-align: right
}

.pw-batch-item .btn {
    flex: 0 0 auto
}

.pw-batch-item code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all
}

.pw-batch-copy {
    color: #fff !important;
    background: var(--grad-accent) !important
}

.upload-input {
    padding: 14px 18px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius);
    background: #fafbfc;
    cursor: pointer;
    font-size: 14px;
    width: 100%;
    transition: border-color .15s
}

.upload-input:hover {
    border-color: var(--c-accent)
}

#compress-list {
    display: grid;
    grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    justify-items: center
}

.compress-empty {
    grid-column: 1/-1;
    text-align: center;
    padding: 60px 20px;
    color: var(--c-text3);
    font-size: 15px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg)
}

.compress-item {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 12px;
    text-align: center;
    min-width: 0;
    overflow: hidden
}

.compress-prev {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center
}

.compress-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block
}

.compress-name {
    font-size: 14px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.compress-size {
    font-size: 11px;
    color: var(--c-text2);
    margin-top: 2px
}

.compress-meta {
    padding: 0 4px
}

.compress-orig {
    font-size: 11px;
    color: var(--c-text2)
}

.compress-new {
    font-size: 12px;
    font-weight: 600;
    margin: 2px 0 6px
}

.compress-dl-btn {
    margin-top: 4px;
    width: 100%
}

.compress-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block
}


.card-compress .card-icon {
    background: var(--grad-img)
}

.card-compress::before {
    background: var(--grad-img)
}

.bookmark-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: white;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 15px;
    transition: all .15s;
    font-weight: 500;
    user-select: none;
    background: #FFA4027A;
}

/* ===== LOGO 鐢熸垚鍣?===== */
.logo-layout {
    display: flex;
    gap: 24px;
    flex-wrap: wrap
}

.logo-controls {
    flex: 1;
    min-width: 300px
}

.logo-preview-area {
    flex: 1;
    min-width: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fafbfc;
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    padding: 16px
}

#logo-canvas {
    cursor: move;
    max-width: 100%;
    height: auto;
    border-radius: 4px
}

.ctrl-group {
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius)
}

.ctrl-group h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text2);
    margin-bottom: 10px
}

.drag-hint {
    font-size: 11px;
    color: var(--c-text3);
    margin-top: 8px;
    text-align: center
}

/* LOGO 鍒嗗尯鑳屾櫙 */
.lg-bg-name {
    background: #e8f0fe
}

.lg-bg-sub {
    background: #fff4e8
}

.lg-bg-bg {
    background: #e8faf0
}

.lg-bg-icon {
    background: #f3edff
}

/* LOGO 鍥炬爣鍖?*/
.lg-icon-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    flex-wrap: wrap
}

.lg-icon-cell {
    flex: 0 0 auto
}

.lg-icon-wrap {
    position: relative;
    display: inline-block;
    flex: 0 0 auto
}

.lg-icon-img {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    object-fit: contain
}

.lg-icon-del {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: none;
    background: #ef4444;
    color: #fff;
    cursor: pointer;
    font-size: 10px;
    line-height: 16px;
    padding: 0;
    text-align: center
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

:root {
    --c-bg: #f0f4f8;
    --c-surface: #fff;
    --c-text: #1a2332;
    --c-text2: #5a6d80;
    --c-text3: #8b9eb0;
    --c-border: #dce4ec;
    --c-border-light: #edf1f5;
    --c-accent: #4f6ef7;
    --c-accent2: #7c5cfc;
    --c-accent3: #10b981;
    --c-red: #ef4444;
    --c-amber: rgba(255, 164, 2, 0.48);
    --c-cyan: #06b6d4;
    --c-pink: #ec4899;
    --c-orange: #f97316;
    --c-teal: #14b8a6;
    --c-indigo: #6366f1;
    --grad-accent: linear-gradient(135deg, #4f6ef7, #7c5cfc);
    --grad-json: linear-gradient(135deg, #f97316, #ef4444);
    --grad-crypto: linear-gradient(135deg, #7c5cfc, #ec4899);
    --grad-img: linear-gradient(135deg, #06b6d4, #10b981);
    --grad-qr: linear-gradient(135deg, #14b8a6, #6366f1);
    --grad-color: linear-gradient(135deg, #f59e0b, #ef4444);
    --grad-time: linear-gradient(135deg, #10b981, #06b6d4);
    --grad-uuid: linear-gradient(135deg, #ec4899, #f97316);
    --grad-regex: linear-gradient(135deg, #6366f1, #14b8a6);
    --grad-hex: linear-gradient(135deg, #14b8a6, #10b981);
    --grad-escape: linear-gradient(135deg, #f97316, #f59e0b);
    --grad-pink: linear-gradient(135deg, #ec4899, #a855f7);
    --grad-indigo: linear-gradient(135deg, #6366f1, #4f6ef7);
    --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, .08), 0 1px 4px rgba(0, 0, 0, .04);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .03);
    --radius: 8px;
    --radius-lg: 12px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
    --max-w: 1100px;
    --header-h: 60px;
}

html {
    scroll-behavior: smooth
}

body {
    font-family: var(--font);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    min-height: 100vh
}

a {
    color: inherit;
    text-decoration: none
}

.site-header {
    height: var(--header-h);
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center
}

.header-inner {
    width: 100%;
    max-width: var(--max-w);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--c-text)
}

.logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: var(--grad-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 700
}

.home-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--c-accent);
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 6px;
    transition: background .15s
}

.home-link:hover {
    background: #eef2ff
}

.site-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--c-text3);
    font-size: 13px;
}

.main-content {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 32px 24px
}

.main-content.wide {
    max-width: 960px
}

.page-hero {
    text-align: center;
    padding: 20px 24px 24px
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -.5px;
    line-height: 1.2;
    margin-bottom: 12px;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text
}

.page-hero .subtitle {
    font-size: 16px;
    color: var(--c-text2);
    max-width: 600px;
    margin: 0 auto
}

/* ===== Header Nav (dropdown) ===== */
.header-nav {
    display: flex;
    align-items: center;
    gap: 2px
}

.nav-dropdown {
    position: relative
}

.nav-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: none;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    color: var(--c-text2);
    cursor: pointer;
    border-radius: 6px;
    transition: all .15s;
    white-space: nowrap
}

.nav-trigger:hover, .nav-dropdown.open .nav-trigger {
    color: var(--c-accent);
    background: #eef2ff
}

.nav-dropdown:hover .nav-drop, .nav-dropdown.open .nav-drop {
    display: block
}

.nav-dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 6px
}

.nav-drop {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    z-index: 200;
    padding: 6px;
    animation: drop-in .15s ease
}

@keyframes drop-in {
    from {
        opacity: 0;
        transform: translateY(-4px)
    }
    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.nav-drop a {
    display: block;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--c-text);
    border-radius: 4px;
    transition: background .1s
}

.nav-drop a:hover {
    background: var(--c-bg);
    color: var(--c-accent)
}

.tools-grid {
    display: grid;
    grid-template-columns:repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    padding: 0 0 40px
}

.tool-card {
    background: var(--c-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    padding: 20px 22px;
    transition: all .2s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden
}

.tool-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: transparent
}

.tool-card .card-header {
    display: flex;
    align-items: center;
    gap: 12px
}

.tool-card .card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    flex-shrink: 0
}

.tool-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    line-height: 1.2
}

.tool-card p {
    font-size: 13px;
    color: var(--c-text2);
    line-height: 1.5;
    margin: 0
}

.tool-card .card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap
}

.tool-card .tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    background: #f0f4f8;
    color: var(--c-text2);
    font-weight: 500
}

/* Card colors */
.card-json .card-icon {
    background: var(--grad-json)
}

.card-json::before {
    background: var(--grad-json)
}

.card-time .card-icon {
    background: var(--grad-time)
}

.card-time::before {
    background: var(--grad-time)
}

.card-base64 .card-icon {
    background: var(--grad-crypto)
}

.card-base64::before {
    background: var(--grad-crypto)
}

.card-urlcode .card-icon {
    background: var(--grad-accent)
}

.card-urlcode::before {
    background: var(--grad-accent)
}

.card-qrcode .card-icon {
    background: var(--grad-qr)
}

.card-qrcode::before {
    background: var(--grad-qr)
}

.card-unicode .card-icon {
    background: var(--grad-pink)
}

.card-unicode::before {
    background: var(--grad-pink)
}

.card-color .card-icon {
    background: var(--grad-color)
}

.card-color::before {
    background: var(--grad-color)
}

.card-uuid .card-icon {
    background: var(--grad-uuid)
}

.card-uuid::before {
    background: var(--grad-uuid)
}

.card-regex .card-icon {
    background: var(--grad-indigo)
}

.card-regex::before {
    background: var(--grad-indigo)
}

.card-hexconv .card-icon {
    background: var(--grad-hex)
}

.card-hexconv::before {
    background: var(--grad-hex)
}

.card-escape .card-icon {
    background: var(--grad-escape)
}

.card-escape::before {
    background: var(--grad-escape)
}

.card-compress .card-icon {
    background: var(--c-teal)
}

.card-compress::before {
    background: var(--c-teal)
}

.card-tools .card-icon {
    background: var(--grad-uuid)
}

.card-tools::before {
    background: var(--grad-uuid)
}

.cat-section {
    margin-bottom: 5px;
    scroll-margin-top: 80px
}

.cat-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--c-text2);
    letter-spacing: .5px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px
}

.cat-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--c-border)
}

.tool-container {
    max-width: 960px;
    margin: 0 auto
}

.tool-header {
    padding: 20px 0
}

.tool-header .th-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15)
}

.tool-header .th-desc {
    color: var(--c-text2);
    font-size: 12px
}

.tool-body {
    font-family: var(--font);
    background: transparent;
    color: var(--c-text);
    line-height: 1.6;
    min-height: 55vh
}

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-text2);
    margin-bottom: 6px
}

input[type="text"], input[type="number"], input[type="datetime-local"], input[type="url"], select, textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font);
    background: var(--c-surface);
    color: var(--c-text);
    transition: all .15s;
    outline: none
}

textarea {
    font-family: var(--font-mono);
    font-size: 13px;
    resize: vertical;
    min-height: 140px;
    line-height: 1.6
}

input:focus, select:focus, textarea:focus {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(79, 110, 247, .1)
}

input[readonly], textarea[readonly] {
    background: #f8fafb;
    cursor: default
}

input[type="file"] {
    padding: 8px 10px;
    font-size: 14px
}

input[type="color"] {
    width: 40px;
    height: 36px;
    border: 1.5px solid var(--c-border);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2712%27 height=%2712%27 viewBox=%270 0 24 24%27 fill=%27none%27 stroke=%27%238b9eb0%27 stroke-width=%272%27%3E%3Cpolyline points=%276 9 12 15 18 9%27/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    background: var(--grad-accent);
    color: #fff;
    transition: all .15s;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(79, 110, 247, .2)
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(79, 110, 247, .3)
}

.btn:active {
    transform: scale(.97)
}

.btn-sm {
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: none
}

.btn-outline {
    background: var(--c-bg);
    background-image: radial-gradient(ellipse 80% 60% at 50% -10%, #e8eeff 0%, transparent 60%), radial-gradient(ellipse 60% 50% at 90% 80%, #e8f5ff 0%, transparent 50%);
    color: var(--c-accent);
    border: 1.5px solid var(--c-accent);
    box-shadow: none
}

.btn-outline:hover {
    background: #eef2ff;
    transform: none;
    box-shadow: none
}

.form-row {
    padding: 15px;
    margin: 15px 0;
    background: #d9e8f6;
    border-radius: 10px;
}

.form-row-flex {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap
}

.form-row-flex > * {
    flex: 1;
    min-width: 120px
}

.btn-row {
    display: flex;
    gap: 10px;
    margin: 16px 0;
    flex-wrap: wrap;
    background: #d9e8f6;
    padding: 15px;
    border-radius: 10px;
}

.color-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap
}

.color-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0
}

hr {
    border: none;
    border-top: 1.5px solid var(--c-border-light);
    margin: 20px 0
}

.result-box {
    min-height: 60px;
    margin-top: 16px;
    padding: 16px;
    border-radius: var(--radius);
    background: #f8fafb;
    border: 1px solid var(--c-border-light);
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all;
    max-height: 400px;
    overflow: auto;
    line-height: 1.6
}

.result-box.success {
    border-color: #a7f3d0;
    background: #f0fdf8
}

.result-box.error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b
}

.preview-box {
    margin-top: 16px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #fafbfc;
    padding: 20px 20px;
}

.preview-box img {
    max-width: 100%;
    max-height: 360px;
    display: block
}

.tab-bar {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--c-border-light)
}

.tab {
    padding: 9px 18px;
    border: none;
    background: none;
    background-image: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text2);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all .15s
}

.tab:hover {
    color: var(--c-text)
}

.tab.active {
    color: var(--c-accent);
    border-bottom-color: var(--c-accent);
    font-weight: 600
}

.sub-panel {
    display: none
}

.sub-panel.active {
    display: block
}

.diff-container {
    display: flex;
    gap: 16px;
    margin-bottom: 12px
}

.diff-side {
    flex: 1;
    min-width: 0
}

.diff-side label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-text2);
    margin-bottom: 6px
}

.diff-side textarea {
    min-height: 120px
}

.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    height: 40px;
    transform: translate(-50%, -50%);
    background: #1a2332;
    color: #fff;
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    z-index: 999;
    animation: toast-in .3s ease;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(12px)
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 20px 16px
    }

    .page-hero {
        padding: 32px 16px 24px
    }

    .page-hero h1 {
        font-size: 26px
    }

    .tools-grid {
        grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
        gap: 12px
    }

    .tool-card {
        padding: 16px 14px;
        gap: 8px
    }

    .tool-card .card-icon {
        width: 36px;
        height: 36px;
        font-size: 17px;
        border-radius: 8px
    }

    .tool-card h3 {
        font-size: 14px
    }

    .tool-body {
        padding: 20px 16px
    }

    .diff-container {
        flex-direction: column
    }

    .form-row-flex {
        flex-direction: column
    }

    .form-row-flex > * {
        min-width: 100%
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns:1fr
    }
}

/* ===== Detail page inline header ===== */
.tool-header.tool-header-inline {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 20px 0;
    flex-wrap: nowrap
}

.tool-header.tool-header-inline > div:last-child {
    flex: 1;
    min-width: 0
}

.tool-header.tool-header-inline h1 {
    font-size: 24px;
    margin: 0 0 4px 0
}

.tool-header.tool-header-inline .th-icon-sm svg {
    width: 22px;
    height: 22px
}

@media (max-width: 768px) {
    .tool-header.tool-header-inline {
        flex-direction: column;
        text-align: center;
        gap: 12px
    }

    .tool-header.tool-header-inline .th-icon-sm {
        margin: 0 auto
    }
}

/* ===== th-icon gradient colors ===== */
.th-icon.th-json {
    background: var(--grad-json)
}

.th-icon.th-time {
    background: var(--grad-time)
}

.th-icon.th-base64 {
    background: var(--grad-crypto)
}

.th-icon.th-urlcode {
    background: var(--grad-accent)
}

.th-icon.th-unicode {
    background: var(--grad-pink)
}

.th-icon.th-qrcode {
    background: var(--grad-qr)
}

.th-icon.th-color {
    background: var(--grad-color)
}

.th-icon.th-uuid {
    background: var(--grad-uuid)
}

.th-icon.th-regex {
    background: var(--grad-indigo)
}

.th-icon.th-hexconv {
    background: var(--grad-hex)
}

.th-icon.th-escape {
    background: var(--grad-escape)
}

/* ===== Timestamp page rows ===== */
.ts-now-row, .ts-row {
    display: flex;
    gap: 8px;
    align-items: stretch
}

.ts-now-row input, .ts-row input {
    flex: 1;
    min-width: 0
}

.ts-now-row .btn, .ts-row .btn {
    flex: 0 0 auto;
    white-space: nowrap
}

/* ===== Timestamp sections ===== */
.ts-section {
    margin-bottom: 16px;
    padding: 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    background: #fcfdff
}

.ts-section.ts-in {
    background: #f8faff;
    border-left: 3px solid var(--c-accent)
}

.ts-section.ts-out {
    background: #f8fdf9;
    border-left: 3px solid var(--c-accent3)
}

.ts-section .section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text2);
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 14px
}

.ts-section hr {
    border-color: var(--c-border-light);
    margin: 16px 0
}

/* ===== Toast notification ===== */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    background: #1a2332;
    color: #fff;
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    z-index: 9999;
    animation: toast-in .35s ease, toast-out .3s ease 1.5s forwards;
    pointer-events: none
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(12px)
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }
}

@keyframes toast-out {
    from {
        opacity: 1
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(-8px)
    }
}

/* ===== QR code grid ===== */
.qr-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 16px
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px
}

.qr-item canvas {
    max-width: 240px;
    height: auto;
    border-radius: 4px
}

.qr-label {
    font-size: 12px;
    color: var(--c-text2);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 6px
}

.qr-color-item input[type="color"] {
    width: 36px;
    height: 36px;
    border: 2px solid var(--c-border);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px;
    background: #fff
}

.qr-color-item input[type="text"] {
    width: 90px;
    padding: 6px 8px;
    font-family: var(--font-mono);
    font-size: 13px
}

.qr-color-item label {
    font-size: 12px;
    color: var(--c-text2);
    font-weight: 600;
    margin: 0
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius)
}

.qr-color-item input[type="color"] {
    width: 40px;
    height: 40px;
    border: 2px solid #fff;
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .12), inset 0 0 0 1px rgba(0, 0, 0, .06);
    transition: box-shadow .15s
}

.qr-color-item input[type="color"]:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, .18)
}

.qr-color-item input[type="text"] {
    width: 84px;
    padding: 7px 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    text-align: center;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    background: var(--c-surface)
}

.qr-color-item label {
    font-size: 12px;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: .3px
}

.qr-color-divider {
    width: 2px;
    height: 20px;
    background: var(--c-border);
    border-radius: 1px;
    flex-shrink: 0
}

/* ===== QR control row ===== */
.qr-ctrl-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin: 15px 0 18px
}

.qr-color-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius)
}

.qr-color-item input[type="color"] {
    width: 36px;
    height: 36px;
    border: 2px solid #fff;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .12)
}

.qr-color-item input[type="text"] {
    width: 78px;
    padding: 6px 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    text-align: center;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    background: var(--c-surface)
}

.qr-color-item label {
    font-size: 11px;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: .3px;
    white-space: nowrap
}

.qr-logo-item img {
    border-radius: 4px;
    object-fit: contain;
    flex-shrink: 0
}

/* QR preview box */
.qr-preview-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 160px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text3);
    font-size: 14px;
    margin-top: 12px;
    background: #fafbfc
}

#qr-preview:has(.qr-grid) .qr-preview-placeholder {
    display: none
}

.qr-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 12px
}

.qr-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px
}

.qr-item canvas {
    max-width: 240px;
    height: auto;
    border-radius: 4px
}

.qr-label {
    font-size: 12px;
    color: var(--c-text2);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center
}

.qr-logo-item {
    gap: 6px;
    min-width: 0
}

.qr-logo-item input[type="file"] {
    width: 90px;
    padding: 4px 2px;
    font-size: 11px;
    flex-shrink: 0
}

.re-flags-select {
    padding: 10px 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    color: var(--c-text);
    background: var(--c-surface);
    cursor: pointer;
    height: 44px;
    display: inline-flex;
    align-items: center;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235a6d80' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px
}

.re-flags-select:hover {
    border-color: var(--c-accent)
}

.re-flags-select:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(79, 110, 247, .1)
}

.btn option, .btn optgroup {
    color: var(--c-text);
    background: var(--c-surface)
}

.re-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.pw-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #10b981;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 8px 0
}

.pw-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--grad-accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(79, 110, 247, .3)
}

.pw-len-hints {
    display: flex;
    justify-content: space-between;
    font-size: 15px;
    color: black;
}

.pw-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 16px
}

.pw-check {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    color: var(--c-text);
    cursor: pointer;
    font-weight: 400
}

.pw-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--c-accent)
}

.pw-result-row {
    display: flex;
    gap: 8px
}

.pw-result-row input {
    flex: 1
}

.pw-result-row .btn {
    flex: 0 0 auto
}

.pw-strength {
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600
}

.pw-bar {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--c-border);
    overflow: hidden
}

.pw-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width .4s
}

.pw-batch-list {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px
}

.pw-batch-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--c-bg);
    border-radius: var(--radius)
}

.pw-idx {
    width: 28px;
    font-size: 15px;
    color: #f7f9fb;
    text-align: center;
    height: 28px;
    background: rgba(255, 164, 2, 0.48);
    line-height: 28px;
    border-radius: 5px;
}

.pw-batch-item code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis
}

.pw-strength-text {
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    min-width: 60px;
    text-align: right
}

.pw-batch-item .btn {
    flex: 0 0 auto
}

.pw-batch-item code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    word-break: break-all
}

.pw-batch-copy {
    color: #fff !important;
    background: var(--grad-accent) !important
}

.upload-input {
    padding: 14px 18px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius);
    background: #fafbfc;
    cursor: pointer;
    font-size: 14px;
    width: 100%;
    transition: border-color .15s
}

.upload-input:hover {
    border-color: var(--c-accent)
}

#compress-list {
    display: grid;
    grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    justify-items: center
}

.compress-empty {
    grid-column: 1/-1;
    text-align: center;
    padding: 60px 20px;
    color: var(--c-text3);
    font-size: 15px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg)
}

.compress-item {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 12px;
    text-align: center;
    min-width: 0;
    overflow: hidden
}

.compress-prev {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center
}

.compress-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block
}

.compress-name {
    font-size: 14px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.compress-size {
    font-size: 11px;
    color: var(--c-text2);
    margin-top: 2px
}

.compress-meta {
    padding: 0 4px
}

.compress-orig {
    font-size: 11px;
    color: var(--c-text2)
}

.compress-new {
    font-size: 12px;
    font-weight: 600;
    margin: 2px 0 6px
}

.compress-dl-btn {
    margin-top: 4px;
    width: 100%
}

.compress-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block
}


.card-compress .card-icon {
    background: var(--grad-img)
}

.card-compress::before {
    background: var(--grad-img)
}

.bookmark-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: white;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 15px;
    transition: all .15s;
    font-weight: 500;
    user-select: none;
    background: #FFA4027A;
}

/* ===== LOGO 鐢熸垚鍣?===== */
.logo-layout {
    display: flex;
    gap: 24px;
    flex-wrap: wrap
}

.logo-controls {
    flex: 1;
    min-width: 300px
}

.logo-preview-area {
    flex: 1;
    min-width: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fafbfc;
    border-radius: var(--radius);
    border: 1px solid var(--c-border);
    padding: 16px
}

#logo-canvas {
    cursor: move;
    max-width: 100%;
    height: auto;
    border-radius: 4px
}

.ctrl-group {
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius)
}

.ctrl-group h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text2);
    margin-bottom: 10px
}

.drag-hint {
    font-size: 11px;
    color: var(--c-text3);
    margin-top: 8px;
    text-align: center
}

/* LOGO 鍒嗗尯鑳屾櫙 */
.lg-bg-name {
    background: #e8f0fe
}

.lg-bg-sub {
    background: #fff4e8
}

.lg-bg-bg {
    background: #e8faf0
}

.lg-bg-icon {
    background: #f3edff
}

/* LOGO 鍥炬爣鍖?*/
.lg-icon-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    flex-wrap: wrap
}

.lg-icon-cell {
    flex: 0 0 auto
}

.lg-icon-wrap {
    position: relative;
    display: inline-block;
    flex: 0 0 auto
}

.lg-icon-img {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    object-fit: contain
}

.lg-icon-del {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: none;
    background: #ef4444;
    color: #fff;
    cursor: pointer;
    font-size: 10px;
    line-height: 16px;
    padding: 0;
    text-align: center
}

.color-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.color-presets {
    display: grid;
    grid-template-columns:repeat(9, 1fr);
    gap: 5px
}

.color-group {
    margin-bottom: 12px;
    padding: 10px;
    border-radius: var(--radius);
    background: #fafbfc
}

.color-group-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--c-text2);
    margin-bottom: 6px;
    text-transform: uppercase
}

.color-swatch {
    width: 100%;
    height: 32px;
    border-radius: 5px;
    cursor: pointer;
    transition: transform .12s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .1)
}

.color-swatch:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
    z-index: 1
}

.color-swatch:hover {
    transform: scale(1.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
    z-index: 1
}

.json-tree {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 12px;
    max-height: 500px;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7
}

.json-tree .jf-key {
    color: #881391
}

.json-tree .jf-string {
    color: #0b7500
}

.json-tree .jf-number {
    color: #1750eb
}

.json-tree .jf-boolean {
    color: #1750eb
}

.json-tree .jf-null {
    color: #999
}

.json-tree .jf-toggle {
    cursor: pointer;
    user-select: none;
    margin-right: 4px;
    color: var(--c-text2)
}

.json-tree .jf-toggle:hover {
    color: var(--c-accent)
}

.json-tree ul {
    list-style: none;
    padding-left: 18px;
    margin: 0
}

.json-tree li {
    position: relative
}

/* ===== Text Diff ===== */
.diff-stats {
    margin-bottom: 16px
}

.diff-stats .result-box {
    min-height: auto;
    margin-top: 0
}

.diff-stats .c-same {
    color: var(--c-accent3)
}

.diff-stats .c-remove {
    color: var(--c-red)
}

.diff-stats .c-add {
    color: var(--c-accent3)
}

.diff-result {
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: auto;
    max-height: 520px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6
}

.diff-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed
}

.diff-table tr {
    border-bottom: 1px solid var(--c-border-light)
}

.diff-table td {
    padding: 3px 6px;
    vertical-align: top;
    white-space: pre;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6
}

.diff-table .d-num {
    width: 44px;
    min-width: 44px;
    text-align: right;
    color: var(--c-text3);
    font-size: 12px;
    user-select: none;
    border-right: 1px solid var(--c-border-light);
    padding-right: 8px
}

.diff-table .d-num-a {
    border-right: none;
    border-left: 1px solid var(--c-border-light)
}

.diff-table .d-prefix {
    width: 20px;
    min-width: 20px;
    text-align: center;
    font-weight: 700;
    user-select: none
}

.diff-table .d-text {
    word-break: break-all;
    white-space: pre-wrap;
    padding: 3px 10px
}

.diff-table tr.d-same {
    background: #fff
}

.diff-table tr.d-same:hover {
    background: #f8fafb
}

.diff-table tr.d-remove {
    background: #fef2f2
}

.diff-table tr.d-remove .d-prefix {
    color: var(--c-red)
}

.diff-table tr.d-add {
    background: #f0fdf4
}

.diff-table tr.d-add .d-prefix {
    color: var(--c-accent3)
}

.diff-table .d-chg {
    background: #fde68a;
    padding: 1px 2px;
    border-radius: 2px
}

.diff-table tr.d-remove .d-chg {
    background: #fca5a5
}

.diff-table tr.d-add .d-chg {
    background: #86efac
}

.card-textdiff .card-icon {
    background: linear-gradient(135deg, #6366f1, #14b8a6)
}

.card-textdiff::before {
    background: linear-gradient(135deg, #6366f1, #14b8a6)
}

.th-icon.th-textdiff {
    background: linear-gradient(135deg, #6366f1, #14b8a6)
}

.card-codefmt .card-icon {
    background: linear-gradient(135deg, #f97316, #ef4444)
}

.card-codefmt::before {
    background: linear-gradient(135deg, #f97316, #ef4444)
}


/* ===== Schedule ===== */
.sc-settings {
    background: #fcfdff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 20px 20px 4px 20px;
    margin-bottom: 20px
}

.sc-settings-row {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
    flex-wrap: wrap
}

.sc-field {
    flex: 0 0 auto;
    min-width: 160px
}

.sc-field-grow {
    flex: 1;
    min-width: 240px
}

.sc-field label {
    font-size: 12px;
    margin-bottom: 4px
}

.sc-add-row {
    display: flex;
    gap: 8px;
    align-items: stretch
}

.sc-add-row input {
    flex: 1;
    min-width: 0
}

.sc-date-input {
    font-family: var(--font);
    min-width: 140px;
    font-size: 18px;
}

.sc-date-input::-webkit-calendar-picker-indicator {
    cursor: pointer;
    opacity: .6
}

.sc-date-input::-webkit-calendar-picker-indicator:hover {
    opacity: 1
}

.sc-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text2);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px
}

.sc-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--c-border-light)
}

.sc-shift-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 8px
}

.sc-shift-item {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: nowrap;
    padding: 4px 8px;
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius)
}

.sc-shift-item input[type="color"] {
    width: 50px;
}

.sc-shift-color {
    width: 28px;
    height: 28px;
    border: 2px solid #fff;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .12)
}

.sc-shift-name {
    width: 55px;
    padding: 4px 6px;
    padding: 4px 8px;
    font-size: 13px;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    font-family: var(--font)
}

.sc-shift-time {
    width: 12%;
    padding: 7px 5px;
    font-size: 16px;
    border: 1px solid var(--c-border);
    border-radius: 6px;
    font-family: var(--font)
}

.sc-shift-sep {
    color: var(--c-text3);
    font-size: 14px;
    padding: 0 2px
}

.sc-shift-del {
    border: none;
    background: none;
    cursor: pointer;
    color: red;
    font-size: 14px;
    padding: 2px 4px;
    line-height: 1
}

.sc-shift-del:hover {
    color: var(--c-red)
}

.sc-emp-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    min-height: 36px
}

.sc-emp-empty {
    color: var(--c-text3);
    font-size: 13px;
    padding: 8px 0
}

.sc-emp-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 4px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: 20px;
    font-size: 13px
}

.sc-emp-badge {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0
}

.sc-emp-del {
    border: none;
    background: none;
    cursor: pointer;
    color: var(--c-text3);
    font-size: 12px;
    padding: 0 2px;
    line-height: 1;
    transition: color .1s
}

.sc-emp-del:hover {
    color: var(--c-red)
}

.sc-records-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 4px;
    min-height: 32px
}

.sc-rec-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius)
}

.sc-rec-name {
    font-weight: 600;
    font-size: 13px;
    flex: 1;
    min-width: 0
}

.sc-rec-meta {
    font-size: 12px;
    color: var(--c-text3);
    white-space: nowrap
}

.sc-rec-load {
    border: none;
    background: var(--grad-accent);
    color: #fff;
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap
}

.sc-rec-load:hover {
    opacity: .85
}

.sc-rec-del {
    border: none;
    background: none;
    cursor: pointer;
    color: var(--c-text3);
    font-size: 13px;
    padding: 2px;
    line-height: 1
}

.sc-rec-del:hover {
    color: var(--c-red)
}

.sc-grid-wrap {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: auto
}

.sc-grid-wrap .sc-empty {
    padding: 60px 20px;
    text-align: center;
    color: var(--c-text3);
    font-size: 15px
}

.sc-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 13px;
    min-width: 100%
}

.sc-table th, .sc-table td {
    border: 1px solid var(--c-border-light);
    padding: 6px 4px;
    text-align: center;
    white-space: nowrap
}

.sc-table thead th {
    background: var(--c-bg);
    font-weight: 600;
    font-size: 12px;
    color: var(--c-text2)
}

.sc-th-name {
    text-align: left;
    padding-left: 10px;
    min-width: 70px
}

.sc-th-weekend {
    background: #fef2f2;
    color: var(--c-red)
}

.sc-th-weekday {
    font-weight: 400;
    font-size: 10px;
    color: var(--c-text3)
}

.sc-td-name {
    text-align: left;
    padding-left: 10px;
    font-weight: 600;
    min-width: 70px
}

.sc-cell {
    cursor: pointer;
    transition: all .1s;
    border-radius: 2px;
    min-width: 40px;
    font-weight: 600;
    font-size: 12px;
    user-select: none
}

.sc-cell:hover {
    box-shadow: inset 0 0 0 2px var(--c-accent)
}

.sc-cell-filled {
    border-radius: 4px
}

.card-schedule .card-icon {
    background: linear-gradient(135deg, #14b8a6, #6366f1)
}

.card-schedule::before {
    background: linear-gradient(135deg, #14b8a6, #6366f1)
}

/* ===== Shift display/edit ===== */
.sc-shift-preview {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    flex-shrink: 0;
    display: inline-block
}

.sc-shift-name-display {
    font-weight: 600;
    font-size: 13px;
    min-width: 50px
}

.sc-shift-time-display {
    font-size: 12px;
    color: var(--c-text2);
    font-family: var(--font-mono)
}

.sc-shift-edit-btn {
    border: 1px solid var(--c-border);
    background: var(--c-surface);
    color: var(--c-text);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: auto
}

.sc-shift-edit-btn:hover {
    border-color: var(--c-accent);
    color: var(--c-accent)
}

.sc-shift-editing {
    background: #f0f4ff !important;
    border-color: var(--c-accent) !important
}

.sc-shift-name-edit {
    width: 80px;
    padding: 4px 8px;
    font-size: 13px;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    font-family: var(--font)
}

.sc-shift-time-edit {
    width: 80px;
    padding: 4px 6px;
    font-size: 13px;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    font-family: var(--font)
}

.sc-shift-save {
    padding: 4px 10px;
    font-size: 12px
}

.sc-shift-cancel {
    padding: 4px 10px;
    font-size: 12px
}

.sc-cell-filled {
    line-height: 1.4;
    font-size: 12px
}

.sc-cell-filled .sc-cell-time {
    font-size: 10px;
    font-weight: 400;
    opacity: .85
}

.sc-row-rest {
    background: #fef3c7
}

.sc-row-rest:hover {
    box-shadow: inset 0 0 0 2px var(--c-accent)
}

.sc-rest-day-row {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap
}

.sc-rest-day-cb {
    font-size: 18px!important;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 2px;
    cursor: pointer;
    white-space: nowrap;
    padding: 0 5px;
}

/* ============================================================
   响应式适配（追加于文件末尾，利用层叠覆盖上方规则）
   平板 ≤900px / 手机 ≤768px / 小屏手机 ≤480px
   ============================================================ */

/* ---------- 平板及以下：头部收窄，隐藏收藏按钮 ---------- */
@media (max-width: 900px) {
    .bookmark-btn {
        display: none
    }

    .site-header {
        height: auto;
        min-height: var(--header-h)
    }

    .header-inner {
        padding: 0 12px;
        gap: 8px;
        flex-wrap: wrap
    }

    /* 一级菜单超出时允许左右滑动（下拉菜单由 JS 改为 fixed 定位，不受滚动裁剪影响） */
    .header-nav {
        flex: 1;
        min-width: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none
    }

    .header-nav::-webkit-scrollbar {
        display: none
    }

    /* 移动端 logo 只显示图标、隐藏文字，为菜单腾出空间（文字是直接文本节点，font-size:0 即可隐藏） */
    .logo {
        font-size: 0;
        gap: 0
    }

    .logo-icon {
        flex-shrink: 0;
        width: 20px;
        height: 20px;
    }

    .logo-icon img {
        display: block;
    }

    .nav-trigger {
        padding: 6px 8px;
        font-size: 12px
    }
}

/* ---------- 手机 ≤768px ---------- */
@media (max-width: 768px) {
    /* 标题区：图标与文字保持一行（覆盖上方的竖排规则） */
    .tool-header.tool-header-inline {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 12px;
        padding: 16px 0
    }

    .tool-header.tool-header-inline .th-icon-sm {
        margin: 0
    }

    .tool-header .th-icon {
        width: 42px;
        height: 42px;
        font-size: 17px
    }

    .tool-header.tool-header-inline h1 {
        font-size: 17px
    }

    .tool-header .th-desc {
        font-size: 13px
    }

    /* 选项卡过多时横向滑动，不挤压换行 */
    .tab-bar {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none
    }

    .tab-bar::-webkit-scrollbar {
        display: none
    }

    .tab {
        padding: 9px 14px;
        white-space: nowrap;
        flex-shrink: 0
    }

    /* 输入类控件 16px 起步，避免 iOS 聚焦自动放大页面 */
    input, textarea, select {
        font-size: 16px
    }

    /* 图片/画布不溢出 */
    img, canvas, video, svg {

    }

    /* 表格类内容横向滚动（排班表、对比表等） */
    .tool-body table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch
    }

    /* 按钮组允许换行且按钮不溢出 */
    .btn-row .btn {
        flex: 1 1 auto;
        text-align: center
    }

    .page-hero h1 {
        font-size: 24px
    }

    .site-footer {
        padding: 24px 16px
    }

    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px 12px
    }

}

/* ---------- 小屏手机 ≤480px ---------- */
@media (max-width: 480px) {
    .main-content {
        padding: 16px 12px
    }

    .tool-body {
        padding: 16px 12px
    }

    .tool-header.tool-header-inline h1 {
        font-size: 16px
    }

    .logo {
        font-size: 0;
    }

    .page-hero .subtitle {
        font-size: 14px
    }

}

/* ---------- 移动端横向溢出修复（页面整体不可左右滑动） ---------- */
@media (max-width: 768px) {
    /* 兜底：禁止页面级横向滚动（clip 不会创建滚动容器，不影响 sticky 头部） */
    body {
        overflow-x: clip
    }

    /* LOGO 页：控制区/预览区的最小宽度在小屏直接超宽，放开限制让其随容器收缩 */
    .logo-controls,
    .logo-preview-area {
        min-width: 0
    }

    /* 排班页：表单字段最小宽度放开，允许占满一行 */
    .sc-field,
    .sc-field-grow,
    .sc-date-input {
        min-width: 0
    }

    /* 下拉菜单：宽度不超出屏幕 */
    .nav-drop {

    }
}

@media (max-width: 480px) {
    /* 超小屏：排班页字段一行一个 */
    .sc-field,
    .sc-field-grow {
        flex: 1 1 100%
    }

    /* 颜色预设 9 列太挤，改为自适应列数 */
    .color-presets {
        grid-template-columns: repeat(auto-fill, minmax(34px, 1fr))
    }
}