/* =====================================================
   极易工具箱 主样式表
   主色调：柔和蓝灰，简洁响应式
   ===================================================== */
:root {
    --c-primary: #3b6cf6;
    --c-primary-dark: #2b56c9;
    --c-primary-light: #eaf0ff;
    --c-text: #1f2933;
    --c-muted: #6b7280;
    --c-border: #e5e7eb;
    --c-bg: #f7f8fb;
    --c-bg-card: #ffffff;
    --c-success: #16a34a;
    --c-warning: #d97706;
    --c-error: #dc2626;
    --c-info: #2563eb;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    font-size: 15px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-dark); text-decoration: underline; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 18px; }

/* ===== 顶部 ===== */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--c-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.header-inner {
    display: flex;
    align-items: center;
    height: 62px;
    gap: 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 19px;
    color: var(--c-text);
    text-decoration: none;
}
.logo:hover { text-decoration: none; }
.logo-icon { font-size: 22px; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}
.main-nav a {
    padding: 8px 14px;
    border-radius: 8px;
    color: var(--c-text);
    font-size: 14px;
    text-decoration: none;
    transition: background .15s, color .15s;
}
.main-nav a:hover { background: var(--c-primary-light); color: var(--c-primary-dark); text-decoration: none; }
.main-nav a.active { background: var(--c-primary-light); color: var(--c-primary-dark); font-weight: 600; }
.main-nav a.nav-btn {
    border: 1px solid var(--c-border);
    background: #fff;
}
.main-nav a.nav-btn.primary {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}
.main-nav a.nav-btn.primary:hover { background: var(--c-primary-dark); color: #fff; }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 38px;
    height: 38px;
    background: transparent;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    cursor: pointer;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--c-text);
    margin: 0 auto;
}

/* ===== 主体 ===== */
.main-content {
    flex: 1;
    padding: 26px 18px 50px;
}

/* ===== 首页英雄区 ===== */
.hero {
    background: linear-gradient(135deg, #3b6cf6 0%, #5b8af7 50%, #7ab0ff 100%);
    color: #fff;
    border-radius: 18px;
    padding: 50px 26px;
    text-align: center;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}
.hero h1 { margin: 0 0 8px; font-size: 32px; font-weight: 800; }
.hero .sub { color: rgba(255,255,255,.92); margin-bottom: 22px; font-size: 16px; }

.search-form { display: flex; gap: 10px; max-width: 640px; margin: 0 auto; }
.search-form input[type="search"] {
    flex: 1;
    border: none;
    border-radius: 999px;
    padding: 14px 22px;
    font-size: 16px;
    outline: none;
    box-shadow: 0 4px 14px rgba(0,0,0,.12);
}
.search-form button {
    border: none;
    background: #fff;
    color: var(--c-primary-dark);
    font-weight: 700;
    padding: 14px 26px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 15px;
    box-shadow: 0 4px 14px rgba(0,0,0,.12);
    transition: transform .12s;
}
.search-form button:hover { transform: translateY(-1px); }
.search-suggest { margin-top: 14px; color: rgba(255,255,255,.9); font-size: 13px; }
.search-suggest a { color: #fff; text-decoration: underline; margin: 0 6px; }

/* ===== 卡片网格 / 工具列表 ===== */
.section-title { margin: 30px 0 16px; font-size: 19px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.section-title .more { margin-left: auto; font-size: 13px; font-weight: 400; }

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}
.tool-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 18px;
    transition: transform .15s, box-shadow .15s, border-color .15s;
    display: block;
    color: var(--c-text);
    text-decoration: none;
}
.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-primary);
    color: var(--c-text);
    text-decoration: none;
}
.tool-card .icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--c-primary-light);
    color: var(--c-primary-dark);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    margin-bottom: 12px;
}
.tool-card h3 { margin: 0 0 6px; font-size: 15px; font-weight: 600; }
.tool-card p { margin: 0; color: var(--c-muted); font-size: 13px; line-height: 1.5; }

/* ===== 通用面板 / 表单 ===== */
.panel {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow);
    margin: 20px auto;
    max-width: 920px;
}
.panel.narrow { max-width: 460px; }
.panel h2 { margin: 0 0 18px; font-size: 21px; }
.panel h3 { margin: 20px 0 12px; font-size: 16px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; color: var(--c-text); }
.form-group .hint { color: var(--c-muted); font-size: 12px; font-weight: 400; }
.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
    color: var(--c-text);
}
.form-control:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(59,108,246,.15);
}
textarea.form-control { resize: vertical; min-height: 100px; font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid var(--c-border);
    background: #fff;
    color: var(--c-text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all .15s;
    line-height: 1.2;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); color: #fff; }
.btn-success { background: var(--c-success); border-color: var(--c-success); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-group { display: flex; gap: 10px; flex-wrap: wrap; }

.radio-group { display: flex; flex-wrap: wrap; gap: 10px; }
.radio-card {
    border: 1px solid var(--c-border);
    border-radius: 8px;
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 90px;
    transition: border-color .15s, background .15s;
}
.radio-card input { display: none; }
.radio-card .amt { font-weight: 700; color: var(--c-primary-dark); font-size: 17px; }
.radio-card .lbl { font-size: 12px; color: var(--c-muted); }
.radio-card.checked { border-color: var(--c-primary); background: var(--c-primary-light); }

/* ===== 搜索结果 ===== */
.search-result-list { margin: 20px 0; }
.result-item {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
}
.result-item h3 { margin: 0 0 6px; font-size: 17px; }
.result-item .r-url { color: var(--c-success); font-size: 12px; word-break: break-all; margin-bottom: 6px; }
.result-item .r-desc { color: var(--c-muted); font-size: 14px; line-height: 1.6; }
.result-item .r-action { margin-top: 12px; }
.result-item em.hl { color: var(--c-error); font-style: normal; font-weight: 700; background: #fff3cd; padding: 0 2px; border-radius: 3px; }

.login-prompt {
    border: 1px dashed var(--c-primary);
    background: var(--c-primary-light);
    color: var(--c-primary-dark);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
}

.disclaimer-box {
    margin-top: 22px;
    padding: 14px 16px;
    background: #fffbea;
    border: 1px solid #fde68a;
    color: #92400e;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.7;
}

/* ===== 分页 ===== */
.pagination { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 24px 0; }
.pagination .pg {
    padding: 7px 13px;
    border: 1px solid var(--c-border);
    background: #fff;
    border-radius: 6px;
    color: var(--c-text);
    text-decoration: none;
    font-size: 14px;
}
.pagination .pg:hover { border-color: var(--c-primary); color: var(--c-primary-dark); text-decoration: none; }
.pagination .pg.active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.pagination .pg.disabled { color: var(--c-muted); background: #f3f4f6; cursor: not-allowed; }

/* ===== 二维码 ===== */
.qr-box {
    text-align: center;
    padding: 22px;
    background: #f0f7ff;
    border-radius: var(--radius);
    margin-top: 16px;
}
.qr-box img { max-width: 240px; width: 100%; border: 8px solid #fff; border-radius: 12px; box-shadow: var(--shadow-md); }
.qr-box .tip { margin-top: 12px; color: var(--c-muted); font-size: 13px; }

/* ===== 提示 / 闪存 ===== */
.flash-wrap { position: fixed; top: 76px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.flash {
    padding: 12px 18px;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    box-shadow: var(--shadow-md);
    animation: slidein .25s ease;
}
.flash-success { background: var(--c-success); }
.flash-error { background: var(--c-error); }
.flash-info { background: var(--c-info); }
.flash-warning { background: var(--c-warning); }
@keyframes slidein { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* alert */
.alert {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid;
    margin-bottom: 16px;
    align-items: flex-start;
}
.alert-success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.alert-info { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.alert-warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.alert-error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert-icon { font-size: 20px; line-height: 1.4; }
.alert-title { font-weight: 700; margin-bottom: 2px; }
.alert-text { font-size: 13px; }

/* ===== 工具页布局 ===== */
.tool-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.tool-layout.single { grid-template-columns: 1fr; }
.tool-panel { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.tool-panel h4 { margin: 0 0 12px; font-size: 14px; color: var(--c-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.tool-output {
    background: #0f172a;
    color: #e2e8f0;
    border-radius: var(--radius);
    padding: 16px;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 13px;
    min-height: 120px;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-x: auto;
    max-height: 420px;
    overflow-y: auto;
}
.tool-output.success { background: #052e16; color: #bbf7d0; }
.tool-output.error { background: #450a0a; color: #fecaca; }

.json-view { font-family: ui-monospace, Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-word; font-size: 13px; }
.json-key { color: #60a5fa; }
.json-string { color: #86efac; }
.json-number { color: #fbbf24; }
.json-bool { color: #f87171; }
.json-null { color: #a78bfa; }

/* ===== 表格 ===== */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { border: 1px solid var(--c-border); padding: 8px 12px; text-align: left; }
table.tbl th { background: #f3f4f6; font-weight: 600; }
table.tbl tr:nth-child(even) td { background: #fafbfc; }

/* ===== 颜色块 ===== */
.color-preview { height: 80px; border-radius: var(--radius); border: 1px solid var(--c-border); margin-bottom: 12px; }

/* ===== 二维码预览 ===== */
canvas.qr-canvas { image-rendering: pixelated; border: 6px solid #fff; border-radius: 8px; box-shadow: var(--shadow-md); }

/* ===== 法律页 ===== */
.legal-article { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 26px 30px; max-width: 920px; margin: 0 auto; box-shadow: var(--shadow); }
.legal-article h1 { margin: 0 0 6px; font-size: 26px; }
.legal-article .updated { color: var(--c-muted); font-size: 13px; margin-bottom: 22px; }
.legal-article h2 { margin: 26px 0 10px; font-size: 18px; }
.legal-article p { color: #374151; line-height: 1.85; }
.legal-article ul { color: #374151; line-height: 1.85; }

/* ===== 用户面板 ===== */
.user-info { display: flex; gap: 16px; align-items: center; margin-bottom: 20px; }
.user-avatar {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--c-primary-light);
    color: var(--c-primary-dark);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; font-weight: 700;
}

/* ===== 页脚 ===== */
.site-footer { background: #111827; color: #d1d5db; padding: 36px 0 18px; margin-top: auto; }
.footer-inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; padding-bottom: 24px; border-bottom: 1px solid #1f2937; }
.footer-col h4 { color: #fff; font-size: 14px; margin: 0 0 10px; }
.footer-col a { display: block; color: #9ca3af; font-size: 13px; margin-bottom: 6px; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-col p { color: #9ca3af; font-size: 13px; margin: 0; line-height: 1.6; }
.footer-col .muted { color: #6b7280; font-size: 12px; }
.copyright { text-align: center; padding-top: 16px; color: #6b7280; font-size: 12px; }

/* ===== 响应式 ===== */
@media (max-width: 860px) {
    .nav-toggle { display: flex; }
    .main-nav {
        position: absolute;
        top: 62px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        gap: 4px;
        border-bottom: 1px solid var(--c-border);
        box-shadow: var(--shadow-md);
        display: none;
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 12px 14px; }
    .hero h1 { font-size: 24px; }
    .hero { padding: 36px 18px; }
    .search-form { flex-direction: column; }
    .form-row { grid-template-columns: 1fr; }
    .tool-layout { grid-template-columns: 1fr; }
    .panel { padding: 18px; }
}