/* =============================================================
   ULTRIUMA DESIGN · 统一样式表 v1.5
   亮色 (light) = 鲸落量子 (Q) — 蓝/石板 SaaS 风，大圆角柔影
   暗色 (dark)  = 鲸落工具集 (V) — 纯黑底白字，网格背景，小圆角
   ============================================================= */

/* ============ 亮色主题 (Q · 鲸落量子) ============ */
:root {
    --primary: #4a90e2;
    --primary-strong: #3f87df;
    --primary-soft: rgba(74,144,226,0.10);
    --primary-ring: rgba(74,144,226,0.30);
    --text-on-primary: #fff;

    --bg: #f4f7f9;
    --card: #ffffff;
    --card-hover: #ffffff;
    --input-bg: #f1f5f9;

    --text-main: #2d3748;
    --text-sub: #718096;
    --text-dim: #94a3b8;

    --line: rgba(45,55,72,0.10);
    --line-strong: rgba(45,55,72,0.18);

    --shadow: 0 10px 30px rgba(0,0,0,0.05);
    --shadow-strong: 0 10px 30px rgba(0,0,0,0.08);

    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 999px;

    --font-xs: 11px;
    --font-sm: 12px;
    --font-base: 14px;
    --font-md: 16px;
    --font-lg: 18px;
    --font-xl: 22px;
    --font-2xl: 28px;
    --font-3xl: 34px;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s var(--ease);

    --has-grid-bg: 0;
    --has-glow: 0;
}

/* ============ 暗色主题 (V · 鲸落工具集) ============ */
[data-theme="dark"] {
    --primary: #fff;
    --primary-strong: #e0e0e0;
    --primary-soft: rgba(255,255,255,0.08);
    --primary-ring: rgba(255,255,255,0.20);
    --text-on-primary: #000;

    --bg: #000;
    --card: #0a0a0a;
    --card-hover: #111;
    --input-bg: #0d0d0d;

    --text-main: #ededed;
    --text-sub: #888;
    --text-dim: #555;

    --line: #222;
    --line-strong: #333;

    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-strong: 0 4px 24px rgba(0,0,0,0.5);

    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 999px;

    --font-xs: 10px;
    --font-sm: 12px;
    --font-base: 14px;
    --font-md: 16px;
    --font-lg: 18px;
    --font-xl: 22px;
    --font-2xl: 28px;
    --font-3xl: 34px;

    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 150ms ease;

    --has-grid-bg: 1;
    --has-glow: 1;
}

/* ============ 全局 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text-main);
    font-size: var(--font-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-x: clip;
    max-width: 100vw;
    min-width: 0;
}

/* 网格背景 — 仅暗色 */
[data-theme="dark"] body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 72px 72px;
    pointer-events: none;
    z-index: 0;
}

/* 环境光晕 — 仅暗色 */
[data-theme="dark"] .glow {
    position: fixed;
    top: -30vh;
    left: 50%;
    transform: translateX(-50%);
    width: min(800px, 90vw);
    height: min(800px, 90vw);
    background: radial-gradient(circle, rgba(255,255,255,0.025) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
}

::selection { background: var(--primary); color: var(--text-on-primary); }

::-webkit-scrollbar { width: 10px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* 代码块/表格横向滚动条 */
.note-post-content pre::-webkit-scrollbar,
.note-post-content table::-webkit-scrollbar { height: 5px; }
.note-post-content pre::-webkit-scrollbar-track,
.note-post-content table::-webkit-scrollbar-track { background: transparent; }
.note-post-content pre::-webkit-scrollbar-thumb,
.note-post-content table::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }
.note-post-content pre::-webkit-scrollbar-thumb:hover,
.note-post-content table::-webkit-scrollbar-thumb:hover { background: var(--primary); }

html { scroll-behavior: smooth; overflow-x: hidden; overflow-x: clip; }
html, body { max-width: 100%; }
main { min-width: 0; flex-shrink: 1; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
a { color: inherit; text-decoration: none; }

/* ============ 布局 ============ */
.page-wrap {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    min-width: 0;
    box-sizing: border-box;
}

/* ============ 顶部导航 ============ */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    height: 52px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.brand {
    font-size: var(--font-md);
    font-weight: 700;
    letter-spacing: -0.5px;
    user-select: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 50vw;
    flex-shrink: 1;
    min-width: 0;
}
.brand .dot { color: var(--primary); }
.nav-links {
    margin-left: auto;
    display: flex;
    gap: 20px;
    font-size: var(--font-sm);
    color: var(--text-sub);
    font-weight: 500;
}
.nav-links a { transition: color var(--transition); }
.nav-links a:hover { color: var(--primary); }

.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--text-main);
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: all var(--transition);
}
.theme-toggle:hover { background: var(--card-hover); border-color: var(--line-strong); }

/* ============ Hero ============ */
.hero {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 80px 0 64px;
}
.hero-text { flex: 1; min-width: 0; }
.eyebrow {
    color: var(--primary);
    font-weight: 600;
    font-size: var(--font-xs);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.hero h1 {
    font-size: var(--font-3xl);
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}
.hero h1 .accent { color: var(--primary); }
.lead {
    font-size: var(--font-lg);
    color: var(--text-sub);
    max-width: 100%;
    margin-bottom: 28px;
}
.cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-avatar {
    flex: 0 0 auto;
    width: 140px;
    height: 140px;
    border-radius: var(--radius-xl);
    background: var(--primary-soft);
    color: var(--primary);
    display: grid;
    place-items: center;
    font-size: 32px;
    font-weight: 700;
    overflow: hidden;
}
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; }

/* ============ 按钮 ============ */
.btn {
    padding: 12px 22px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--font-base);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn-primary {
    background: var(--primary);
    color: var(--text-on-primary);
    box-shadow: 0 6px 20px var(--primary-ring);
}
.btn-primary:hover { background: var(--primary-strong); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.97); }

.btn-ghost {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--line-strong);
    font-weight: 600;
}
.btn-ghost:hover { background: var(--primary-soft); border-color: var(--primary); }

[data-theme="dark"] .btn-primary { box-shadow: none; }
[data-theme="dark"] .btn-primary:hover { opacity: 0.85; transform: none; }
[data-theme="dark"] .btn-ghost { color: var(--text-sub); border-color: var(--line-strong); }
[data-theme="dark"] .btn-ghost:hover { color: var(--text-main); border-color: var(--line-strong); }

/* ============ 区段 ============ */
.section { padding: 56px 0; border-top: 1px solid var(--line); }
.section:first-of-type { border-top: none; }
.section-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 24px;
}
.section-head .idx {
    color: var(--primary);
    font-size: var(--font-xs);
    font-weight: 700;
}
.section-head h2 {
    font-size: var(--font-xl);
    font-weight: 700;
}

/* ============ 简介 ============ */
.about p {
    font-size: var(--font-md);
    color: var(--text-sub);
    max-width: 100%;
    line-height: 1.7;
}
.about p + p { margin-top: 14px; }

/* 简介 HTML 内容排版 */
.about-content { max-width: 100%; }
.about-content p {
    font-size: var(--font-md);
    color: var(--text-sub);
    line-height: 1.7;
}
.about-content p + p { margin-top: 14px; }
.about-content strong, .about-content b { color: var(--text-main); font-weight: 700; }
.about-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
.about-content a:hover { opacity: .8; }
.about-content ul, .about-content ol { margin: 12px 0; padding-left: 24px; color: var(--text-sub); }
.about-content li { margin-bottom: 6px; line-height: 1.7; }
.about-content blockquote {
    margin: 16px 0;
    padding: 12px 18px;
    border-left: 3px solid var(--primary);
    background: var(--primary-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-sub);
    font-style: italic;
}
.about-content blockquote p { margin: 0; color: inherit; }
.about-content h3, .about-content h4 {
    color: var(--text-main);
    margin: 18px 0 8px;
    font-weight: 700;
}
.about-content h3 { font-size: var(--font-lg); }
.about-content h4 { font-size: var(--font-md); }
.about-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9em;
    background: var(--primary-soft);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
}
.about-content hr { border: none; border-top: 1px solid var(--line); margin: 20px 0; }
.about-content img { max-width: 100%; border-radius: var(--radius-md); margin: 12px 0; }

/* ============ 作品卡片 ============ */
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 641px) {
    .project-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .project-grid { grid-template-columns: repeat(3, 1fr); }
}
.project-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: all var(--transition);
}
.project-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}
[data-theme="dark"] .project-card:hover {
    border-color: var(--line-strong);
    box-shadow: var(--shadow);
}
.project-card .tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}
.project-card h3 {
    font-size: var(--font-md);
    font-weight: 700;
    margin-bottom: 8px;
}
.project-card p {
    font-size: var(--font-sm);
    color: var(--text-sub);
    margin-bottom: 14px;
    line-height: 1.6;
}
.project-card .more {
    color: var(--primary);
    font-weight: 600;
    font-size: var(--font-sm);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition);
}
.project-card .more:hover { gap: 8px; }

/* ============ 联系方式 ============ */
.contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 100%;
}
.contact-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    transition: border-color var(--transition);
}
.contact-row:hover { border-color: var(--primary); }
[data-theme="dark"] .contact-row:hover { border-color: var(--line-strong); }
.contact-row .ico {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--primary-soft);
    color: var(--primary);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}
.contact-row .ico svg { width: 16px; height: 16px; }
.contact-row .meta { display: flex; flex-direction: column; }
.contact-row .meta .k { font-size: var(--font-xs); color: var(--text-sub); }
.contact-row .meta .v { font-weight: 600; font-size: var(--font-sm); }

/* ============ 页脚 ============ */
.footer {
    text-align: center;
    padding: 36px 0 48px;
    border-top: 1px solid var(--line);
    color: var(--text-dim);
    font-size: var(--font-xs);
    line-height: 1.8;
    margin-top: auto;
}
.footer a { color: var(--primary); font-weight: 600; }
.footer-privacy {
    font-size: var(--font-xs);
    color: var(--text-dim);
    margin-bottom: 8px;
}
.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 6px;
}
.footer-back-top {
    transition: color var(--transition);
}

/* ============ 管理后台 ============ */
.admin-wrap {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}
.admin-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 20px;
}
[data-theme="dark"] .admin-card { border-color: var(--line); }
.admin-card h2 {
    font-size: var(--font-lg);
    font-weight: 700;
    margin-bottom: 6px;
}
.admin-card .desc {
    font-size: var(--font-sm);
    color: var(--text-sub);
    margin-bottom: 20px;
}

/* 表单字段 */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 6px;
}
.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: var(--font-base);
    color: var(--text-main);
    background: var(--input-bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition);
    font-family: inherit;
}
.form-input:focus { border-color: var(--primary); }
[data-theme="dark"] .form-input:focus { border-color: var(--text-main); }
.form-input::placeholder { color: var(--text-dim); }
textarea.form-input { resize: vertical; min-height: 80px; font-family: inherit; }

/* 登录 */
.login-card { max-width: 380px; margin: 80px auto; text-align: center; }
.login-card h2 { margin-bottom: 8px; }
.login-card .desc { margin-bottom: 24px; }
.login-card .form-input { text-align: center; }
.login-error {
    color: #ef4444;
    font-size: var(--font-sm);
    margin-top: 12px;
    min-height: 20px;
}

/* 项目编辑列表 */
.project-edit-item {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 12px;
    background: var(--input-bg);
}
.project-edit-item .form-group { margin-bottom: 10px; }
.project-edit-item .item-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.project-edit-item .item-head span {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-sub);
}

/* 联系方式编辑 */
.contact-edit-item {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr auto;
    gap: 8px;
    align-items: end;
    margin-bottom: 10px;
}
@media (max-width: 700px) {
    .contact-edit-item { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .contact-edit-item { grid-template-columns: 1fr; }
}

/* Toast */
.toast {
    position: fixed;
    top: 64px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--text-on-primary);
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
    font-weight: 600;
    z-index: 1000;
    animation: toastIn 0.3s ease;
}
@keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============ 响应式 ============ */
@media (max-width: 640px) {
    .hero {
        flex-direction: column-reverse;
        text-align: center;
        gap: 28px;
        padding: 56px 0 48px;
    }
    .hero h1 { font-size: var(--font-2xl); }
    .lead { margin: 0 auto 24px; }
    .cta { justify-content: center; }
    .nav-inner { padding: 0 16px; gap: 10px; }
    .nav-links { gap: 12px; font-size: var(--font-xs); }
    .brand { max-width: 40vw; font-size: var(--font-sm); }
    .section { padding: 40px 0; }
    .page-wrap { padding: 0 16px; }
    .admin-wrap { padding: 16px; }
    .admin-card { padding: 16px; }
}

@media (max-width: 380px) {
    .brand { max-width: 30vw; }
    .nav-links { gap: 10px; }
}

/* 刘海屏 */
@supports (padding: max(0px)) {
    body { padding-bottom: max(20px, calc(env(safe-area-inset-bottom) + 10px)); }
}

/* ============ 笔记页 ============ */

/* 分类筛选栏 */
.note-cat-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}
.note-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-sub);
    background: var(--card);
    border: 1px solid var(--line);
    transition: all var(--transition);
}
.note-cat:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.note-cat.active {
    background: var(--primary);
    color: var(--text-on-primary);
    border-color: var(--primary);
}
.note-cat-count {
    font-size: var(--font-xs);
    background: var(--primary-soft);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: var(--radius-full);
}
.note-cat.active .note-cat-count {
    background: rgba(255,255,255,0.2);
    color: var(--text-on-primary);
}
.note-cat-new {
    margin-left: auto;
    color: var(--primary);
    border-color: var(--primary);
}
.note-cat-new:hover {
    background: var(--primary);
    color: var(--text-on-primary);
}
[data-theme="dark"] .note-cat-new {
    color: var(--text-main);
    border-color: var(--line-strong);
}

/* 空状态 */
.note-empty {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-dim);
}
.note-empty p {
    margin-top: 16px;
    font-size: var(--font-md);
}

/* 笔记卡片瀑布流 */
.note-grid {
    columns: 4 260px;
    column-gap: 16px;
    padding-bottom: 40px;
}
.note-card {
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 16px;
    display: block;
    position: relative;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition);
}
.note-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
[data-theme="dark"] .note-card:hover {
    border-color: var(--line-strong);
}
.note-card.is-draft {
    border-style: dashed;
    opacity: 0.75;
}
.note-card-link {
    display: block;
}
.note-card-pin {
    position: absolute;
    top: 14px;
    right: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 3px 8px;
    border-radius: var(--radius-full);
    z-index: 1;
}
.note-card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding-right: 48px;
}
.note-cat-tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}
.note-draft-tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 700;
    color: #f59e0b;
    background: rgba(245,158,11,0.1);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}
.note-card-date {
    display: block;
    font-size: var(--font-xs);
    color: var(--text-dim);
    margin-top: 12px;
}
.note-card-title {
    font-size: var(--font-lg);
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}
.note-card-excerpt {
    font-size: var(--font-sm);
    color: var(--text-sub);
    line-height: 1.7;
}
.note-card-actions {
    display: flex;
    gap: 16px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
}
.note-card-actions a {
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--primary);
}
.note-card-actions a:hover { opacity: 0.7; }

/* 笔记详情页 */
.note-post {
    padding-bottom: 40px;
    min-width: 0;
}
.note-post-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    font-size: var(--font-xs);
    color: var(--text-dim);
    max-width: 100%;
}
.note-pinned-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-xs);
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}
.note-updated {
    font-size: var(--font-xs);
    color: var(--text-dim);
}
.note-post-title {
    font-size: var(--font-2xl);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 28px;
    letter-spacing: -0.5px;
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}
.note-post-content {
    font-size: var(--font-base);
    line-height: 1.8;
    color: var(--text-main);
    max-width: 100%;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}
.note-post-content h1,
.note-post-content h2,
.note-post-content h3,
.note-post-content h4 {
    margin-top: 28px;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.3;
}
.note-post-content h1 { font-size: var(--font-xl); }
.note-post-content h2 { font-size: var(--font-lg); }
.note-post-content h3 { font-size: var(--font-md); }
.note-post-content h4 { font-size: var(--font-base); }
.note-post-content p {
    margin-bottom: 14px;
    color: var(--text-main);
}
.note-post-content ul,
.note-post-content ol {
    margin: 14px 0;
    padding-left: 24px;
}
.note-post-content li {
    margin-bottom: 6px;
    line-height: 1.8;
}
.note-post-content blockquote {
    margin: 18px 0;
    padding: 14px 20px;
    border-left: 3px solid var(--primary);
    background: var(--primary-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-sub);
}
.note-post-content blockquote p {
    margin: 0;
    color: inherit;
}
.note-post-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9em;
    background: var(--primary-soft);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
}
.note-post-content pre {
    margin: 16px 0;
    padding: 16px 20px;
    background: var(--input-bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    overflow-x: auto;
    width: 100%;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
}
.note-post-content pre code {
    background: none;
    padding: 0;
    color: var(--text-main);
    font-size: 13px;
    line-height: 1.6;
    white-space: pre;
    display: block;
}
.note-post-content table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.note-post-content th,
.note-post-content td {
    border: 1px solid var(--line);
    padding: 8px 12px;
    text-align: left;
}
.note-post-content th {
    background: var(--input-bg);
    font-weight: 700;
}
.note-post-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 14px 0;
}
.note-post-content hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 24px 0;
}
.note-post-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* 笔记操作按钮 */
.note-post-actions {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

/* 上下篇导航 */
.note-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}
.note-nav-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.note-nav-item:hover {
    border-color: var(--primary);
}
[data-theme="dark"] .note-nav-item:hover {
    border-color: var(--line-strong);
}
.note-nav-prev { text-align: left; }
.note-nav-next { text-align: right; align-items: flex-end; }
.note-nav-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-xs);
    font-weight: 600;
    color: var(--text-dim);
}
.note-nav-prev .note-nav-label { justify-content: flex-start; }
.note-nav-next .note-nav-label { justify-content: flex-end; }
.note-nav-title {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-main);
}

/* 编辑器 */
.note-editor {
    min-height: 400px !important;
    resize: vertical;
}

/* 分类管理 */
.cat-manage-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.cat-manage-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    transition: border-color var(--transition);
    flex-wrap: wrap;
}
.cat-manage-item:hover {
    border-color: var(--primary-ring);
}
.cat-manage-info {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}
.cat-manage-info .note-cat-tag {
    font-weight: 600;
}
.cat-manage-count {
    font-size: var(--font-xs);
    color: var(--text-dim);
    white-space: nowrap;
}
.cat-manage-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    min-width: 0;
}
.cat-manage-actions form {
    display: flex;
    gap: 6px;
    align-items: center;
    margin: 0;
}
.cat-rename-input {
    width: 90px !important;
    padding: 5px 10px !important;
    font-size: var(--font-sm) !important;
    border-radius: var(--radius-xs) !important;
}
.cat-manage-actions .btn {
    padding: 6px 12px;
    font-size: var(--font-xs);
    white-space: nowrap;
}

/* 响应式补充 */
@media (max-width: 640px) {
    .note-nav { grid-template-columns: 1fr; }
    .note-nav-next { text-align: left; align-items: flex-start; }
    .note-nav-next .note-nav-label { justify-content: flex-start; }
    .note-card-pin { position: absolute; top: 14px; right: 14px; display: inline-flex; }
    .note-card-head { padding-right: 48px; }
    .note-post-title { font-size: var(--font-xl); }
    .note-grid { columns: 1; }
    .cat-manage-item { flex-direction: column; align-items: stretch; gap: 10px; }
    .cat-manage-info { width: 100%; justify-content: space-between; }
    .cat-manage-actions { width: 100%; flex-wrap: wrap; }
    .cat-manage-actions form { flex: 1 1 auto; min-width: 0; }
    .cat-rename-input { flex: 1; width: auto !important; min-width: 60px; }
    .note-pagination { flex-wrap: wrap; gap: 6px; }
    .page-numbers { order: 0; flex-wrap: wrap; justify-content: center; }
    .page-btn { font-size: var(--font-xs); padding: 6px 10px; }
    .page-num { min-width: 28px; height: 28px; font-size: var(--font-xs); padding: 0 4px; }
    .page-ellipsis { font-size: var(--font-xs); }
}

/* 笔记总数 */
.note-total {
    font-size: var(--font-xs);
    color: var(--text-dim);
    margin-bottom: 20px;
}

/* 加载状态 */
.note-loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-dim);
}
.note-loading svg { color: var(--primary); }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }
.spin { animation: spin 1s linear infinite; }

/* AJAX 容器 */
#postContainer, #noteContainer { min-width: 0; max-width: 100%; }

/* 分页 */
.note-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}
.page-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--primary);
    background: var(--card);
    border: 1px solid var(--line);
    transition: all var(--transition);
}
.page-btn:hover {
    border-color: var(--primary);
}
.page-btn.disabled {
    color: var(--text-dim);
    cursor: not-allowed;
    pointer-events: none;
    opacity: 0.5;
}
.page-numbers {
    display: flex;
    align-items: center;
    gap: 4px;
}
.page-num {
    display: inline-grid;
    place-items: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    border-radius: var(--radius-xs);
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-sub);
    transition: all var(--transition);
}
.page-num:hover {
    background: var(--primary-soft);
    color: var(--primary);
}
.page-num.active {
    background: var(--primary);
    color: var(--text-on-primary);
}
.page-ellipsis {
    padding: 0 4px;
    color: var(--text-dim);
    font-size: var(--font-sm);
}

/* ============ 模态框 ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.modal-overlay.modal-open {
    opacity: 1;
}
.modal-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    padding: 28px;
    width: 90%;
    max-width: 360px;
    transform: translateY(12px);
    transition: transform 0.2s ease;
}
.modal-overlay.modal-open .modal-card {
    transform: translateY(0);
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.modal-header h3 {
    margin: 0;
    font-size: var(--font-lg);
    font-weight: 700;
}
.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--text-sub);
    border-radius: var(--radius-xs);
    transition: all var(--transition);
    display: flex;
    align-items: center;
}
.modal-close:hover {
    color: var(--text-main);
    background: var(--primary-soft);
}