:root {
    /* 白底背景体系 */
    --bg-deep: #ffffff;
    --bg-card: rgba(255, 255, 255, .9);
    --bg-code: rgba(248, 250, 255, .95);
    
    /* 科技蓝主色 */
    --accent-cyan: #1677ff;
    --accent-blue: #165dff;
    --accent-purple: #5b8aff;
    
    /* 蓝色发光 */
    --glow-cyan: rgba(22, 119, 255, .3);
    --glow-blue: rgba(22, 93, 255, .2);
    --border-subtle: rgba(22, 119, 255, .15);
    
    /* 文字深色系 */
    --text-primary: #1d2129;
    --text-muted: #4e5969;
    
    /* 代码高亮 */
    --html-accent: #f97316;
    --css-accent: #1677ff;
    --js-accent: #eab308;

    font-family: system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;
    line-height: 1.6;
    font-weight: 400;
    color: var(--text-primary);
    background: var(--bg-deep);
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale
}
* {
    box-sizing: border-box
}
body {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    background: radial-gradient(ellipse 80% 50% at 50% -20%,rgba(22, 119, 255,.06),transparent),linear-gradient(180deg,var(--bg-deep) 0%,#f5f7fa 50%,var(--bg-deep) 100%);
    position: relative;
    overflow-x: hidden
}
body:before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: linear-gradient(rgba(22, 119, 255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(22, 119, 255,.03) 1px,transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0
}
#root {
    position: relative;
    z-index: 1
}
a {
    font-weight: 500;
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color .2s,text-shadow .2s
}
a:hover {
    color: #005ed0;
    text-shadow: 0 0 12px var(--glow-cyan)
}
h1,h2,h3 {
    font-family: system-ui,-apple-system,Segoe UI,Microsoft YaHei,sans-serif;
    font-weight: 600
}
button {
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    padding: .6em 1.2em;
    font-size: 1em;
    font-weight: 500;
    font-family: inherit;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color .25s,box-shadow .25s
}
button:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px var(--glow-cyan)
}
#root {
    max-width: 920px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem
}
.notes-container {
    text-align: left
}
.notes-header {
    text-align: center;
    margin-bottom: 3.5rem;
    padding: 2rem 1.5rem 2.5rem;
    position: relative
}
.notes-header:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%);
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg,transparent,var(--accent-cyan),transparent);
    box-shadow: 0 0 20px var(--glow-cyan)
}
.notes-header h1 {
    font-size: 2.4rem;
    margin: 0 0 .5rem;
    letter-spacing: .15em;
    background: linear-gradient(135deg,#1d2129 0%,var(--accent-cyan) 50%,var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    animation: titleGlow 4s ease-in-out infinite
}
@keyframes titleGlow {
    0%,to {
        filter: drop-shadow(0 0 20px rgba(22, 119, 255,.3))
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(22, 119, 255,.5))
    }
}
.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    letter-spacing: .35em;
    text-transform: uppercase;
    font-weight: 500
}
.notes-section {
    margin-bottom: 3rem
}
.notes-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: .75rem;
    padding-left: 1rem;
    border-left: 4px solid;
    letter-spacing: .08em;
    position: relative
}
.notes-section h2:before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg,currentColor,transparent);
    opacity: .3
}
.html-section h2 {
    color: var(--html-accent);
    border-left-color: var(--html-accent);
    text-shadow: 0 0 20px rgba(249,115,22,.25)
}
.css-section h2 {
    color: var(--css-accent);
    border-left-color: var(--css-accent);
    text-shadow: 0 0 20px rgba(22,119,255,.25)
}
.js-section h2 {
    color: var(--js-accent);
    border-left-color: var(--js-accent);
    text-shadow: 0 0 20px rgba(234,179,8,.25)
}
.note-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem 1.5rem 1.25rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-subtle);
    position: relative;
    overflow: hidden;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    transition: transform .2s,box-shadow .2s,border-color .2s;
    box-shadow: 0 2px 8px rgba(0,0,0,.04)
}
.note-card:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    opacity: .9
}
.note-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(22,119,255,.12)
}
.html-section .note-card {
    border-left: none
}
.html-section .note-card:before {
    background: linear-gradient(180deg,var(--html-accent),#ea580c);
    box-shadow: 0 0 15px rgba(249,115,22,.3)
}
.css-section .note-card {
    border-left: none
}
.css-section .note-card:before {
    background: linear-gradient(180deg,var(--css-accent),#005ed0);
    box-shadow: 0 0 15px rgba(22,119,255,.3)
}
.js-section .note-card {
    border-left: none
}
.js-section .note-card:before {
    background: linear-gradient(180deg,var(--js-accent),#ca8a04);
    box-shadow: 0 0 15px rgba(234,179,8,.3)
}
.note-card h3 {
    font-family: system-ui,-apple-system,Segoe UI,Microsoft YaHei,sans-serif;
    font-size: 1.1rem;
    margin: 0 0 1rem;
    color: var(--text-primary);
    letter-spacing: .05em;
    font-weight: 600
}
.code-block {
    font-family: ui-monospace,Cascadia Code,Consolas,Monaco,Courier New,monospace;
    background: var(--bg-code);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    font-size: .82rem;
    line-height: 1.65;
    color: var(--text-muted);
    margin: 0 0 1rem;
    border: 1px solid rgba(22,119,255,.08);
    position: relative
}
.code-block {
    --code-keyword: #8b5cf6;
    --code-string: #34d399;
    --code-comment: #64748b;
    --code-tag: #f97316;
    --code-attr: #1677ff
}
.note-card p {
    color: var(--text-muted);
    line-height: 1.75;
    margin: 0;
    font-size: .95rem
}
.note-card strong {
    color: var(--accent-cyan);
    font-weight: 500
}
.notes-footer {
    text-align: center;
    margin-top: 4rem;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: .9rem;
    letter-spacing: .1em
}
.notes-footer p {
    margin: 0
}
.notes-footer .icp {
    margin-top: 1rem;
    font-size: .85rem;
    opacity: .85
}
.notes-footer .icp a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color .2s
}
.notes-footer .icp a:hover {
    color: var(--accent-cyan)
}
@media(max-width: 640px) {
    #root {
        padding:1.5rem 1rem
    }
    .notes-header h1 {
        font-size: 1.75rem;
        letter-spacing: .08em
    }
    .subtitle {
        letter-spacing: .2em;
        font-size: .85rem
    }
    .notes-section h2 {
        font-size: 1.25rem
    }
    .code-block {
        font-size: .75rem;
        padding: 1rem
    }
}
.contact .wx{
    margin-right: 150px;
}