:root {
    /* 暗黑模式核心变量 */
    --bg-color: #0d1117;
    --main-text: #e6edf3;
    --meta-text: #8b949e;
    --accent-color: #58a6ff;
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --nav-bg: rgba(13, 17, 23, 0.8);
    --card-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    --banner-overlay: rgba(13, 17, 23, 0.6);
    --toggle-bg: rgba(255, 255, 255, 0.05);
    --terminal-green: #4ade80;
    --terminal-bg-base: #0a0a0a;
    --shimmer-col: rgba(255, 255, 255, 0.15);
    --shimmer-grad: linear-gradient(to right, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.1) 40%, rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0.1) 60%, rgba(255, 255, 255, 0.1) 100%);
    --particle-color: rgba(88, 166, 255, 0.1);
}

[data-theme="light"] {
    /* 亮色模式核心变量 */
    --bg-color: #f6f8fa;
    --main-text: #1f2328;
    --meta-text: #636c76;
    --accent-color: #0969da;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(31, 35, 40, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.9);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --banner-overlay: rgba(255, 255, 255, 0.3);
    --toggle-bg: rgba(0, 0, 0, 0.05);
    --terminal-green: #059669;
    --terminal-bg-base: #e2e8f0;
    --shimmer-col: rgba(0, 0, 0, 0.1);
    --shimmer-grad: linear-gradient(to right, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.05) 40%, rgba(0, 0, 0, 0.7) 50%, rgba(0, 0, 0, 0.05) 60%, rgba(0, 0, 0, 0.05) 100%);
    --particle-color: rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.5s ease, color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease, opacity 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Serif SC', serif;
    background-color: var(--bg-color);
    color: var(--main-text);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.8;
    transition: none;
}

.side-bar-left {
    position: fixed;
    left: 40px;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1001;
    animation: slideInUp 1s ease 0s both;
}

.side-bar-left .social-link {
    writing-mode: vertical-rl;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.7rem;
    color: var(--meta-text);
    text-decoration: none;
    margin-bottom: 25px;
    transition: 0.3s;
}

.side-bar-left .social-link:hover {
    color: var(--accent-color);
    transform: translateY(-5px);
}

.side-bar-left::after {
    content: '';
    width: 1px;
    height: 100px;
    background: var(--glass-border);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(100px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#opening-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    pointer-events: none;
    animation: fadeOutOpening 0.8s ease-in-out 3.1s forwards;
}

.opening-text-slider {
    position: absolute;
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 4.5rem;
    font-family: 'Segoe UI', sans-serif;
    font-weight: bold;
    letter-spacing: 4px;
    white-space: nowrap;
    opacity: 0;
    animation: slideLeftOpening 3.7s forwards;
}

.main-title {
    top: calc(50% - 2.25rem);
    z-index: 10;
}

.welcome-1 {
    top: 8%;
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.4);
    animation: slideLeftPos1 3.7s forwards;
    animation-delay: 0.25s;
}

.welcome-2 {
    top: 20%;
    font-size: 3.5rem;
    color: rgba(255, 255, 255, 0.6);
    animation: slideLeftPos2 3.7s forwards;
    animation-delay: 0.1s;
}

.welcome-3 {
    top: 35%;
    font-size: 2.8rem;
    color: rgba(255, 255, 255, 0.5);
    animation: slideLeftPos3 3.7s forwards;
    animation-delay: 0.35s;
}

.welcome-4 {
    top: 65%;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.55);
    animation: slideLeftPos1 3.7s forwards;
    animation-delay: 0.15s;
}

.welcome-5 {
    top: 80%;
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.65);
    animation: slideLeftPos4 3.7s forwards;
    animation-delay: 0.4s;
}

.welcome-6 {
    top: 92%;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.4);
    animation: slideLeftPos2 3.7s forwards;
    animation-delay: 0.2s;
}

.project-1 {
    top: 15%;
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.20);
    animation: slideLeftPos3 3.7s forwards;
    animation-delay: 0.2s;
}

.project-2 {
    top: 45%;
    font-size: 2.2rem;
    color: rgba(255, 255, 255, 0.18);
    animation: slideLeftPos4 3.7s forwards;
    animation-delay: 0.4s;
}

.project-3 {
    top: 72%;
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.22);
    animation: slideLeftPos1 3.7s forwards;
    animation-delay: 0.55s;
}

.project-4 {
    top: 85%;
    left: 60%;
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.22);
    animation: slideLeftPos5 3.7s forwards;
    animation-delay: 0.15s;
}

@keyframes slideLeftOpening {
    0% {
        transform: translateX(100vw);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.1, 0.9, 0.2, 1);
    }

    56% {
        transform: translateX(0);
        opacity: 1;
    }

    66% {
        transform: translateX(0);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.8, 0.2);
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

@keyframes slideLeftPos1 {
    0% {
        transform: translateX(100vw);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    56% {
        transform: translateX(-20vw);
        opacity: 1;
    }

    66% {
        transform: translateX(-20vw);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.8, 0.2);
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

@keyframes slideLeftPos2 {
    0% {
        transform: translateX(100vw);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    56% {
        transform: translateX(15vw);
        opacity: 1;
    }

    66% {
        transform: translateX(15vw);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.8, 0.2);
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

@keyframes slideLeftPos3 {
    0% {
        transform: translateX(100vw);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    56% {
        transform: translateX(-5vw);
        opacity: 1;
    }

    66% {
        transform: translateX(-5vw);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.8, 0.2);
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

@keyframes slideLeftPos4 {
    0% {
        transform: translateX(100vw);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    56% {
        transform: translateX(25vw);
        opacity: 1;
    }

    66% {
        transform: translateX(25vw);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.8, 0.2);
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

@keyframes slideLeftPos5 {
    0% {
        transform: translateX(50vw) translateX(-50%);
        opacity: 0;
        animation-timing-function: cubic-bezier(0.1, 0.9, 0.2, 1);
    }

    30% {
        transform: translateX(-50%);
        opacity: 1;
    }

    66% {
        transform: translateX(-50%);
        opacity: 1;
        animation-timing-function: cubic-bezier(0.8, 0, 0.9, 0.1);
    }

    100% {
        transform: translateX(-150vw);
        opacity: 0;
    }
}

@keyframes fadeOutOpening {
    0% {
        opacity: 1;
        visibility: visible;
    }

    100% {
        opacity: 0;
        visibility: hidden;
        display: none;
    }
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 8%;
    z-index: 1000;
}

nav.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(25px);
    height: 70px;
    border-bottom: 1px solid var(--glass-border);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-brand {
    font-weight: 900;
    font-size: 1.4rem;
    letter-spacing: 5px;
    color: var(--main-text);
    text-decoration: none;
}

/* 与首页 PROJECTS_HUB 完全一致的角标导航按钮。 */
.view-projects-btn {
    color: var(--main-text);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 8px 16px;
    position: relative;
    transition: all 0.3s ease;
    display: inline-block;
}

.view-projects-btn::before,
.view-projects-btn::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    border: 1px solid transparent;
    transition: all 0.3s ease-out;
}

.view-projects-btn::before {
    top: 0;
    left: -5px;
    border-top-color: currentColor;
    border-left-color: currentColor;
}

.view-projects-btn::after {
    bottom: 0;
    right: -5px;
    border-bottom-color: currentColor;
    border-right-color: currentColor;
}

.view-projects-btn:hover {
    color: var(--accent-color);
    letter-spacing: 4px;
    text-shadow: 0 0 8px var(--glass-border);
}

.view-projects-btn:hover::before,
.view-projects-btn:hover::after {
    width: calc(100% + 10px);
    height: 100%;
    border-color: currentColor;
}

.theme-switch-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 4px;
    background: var(--toggle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    width: 58px;
    height: 30px;
    position: relative;
}

.theme-switch-thumb {
    width: 22px;
    height: 22px;
    background: var(--accent-color);
    border-radius: 50%;
    position: absolute;
    left: 4px;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-switch-thumb svg {
    width: 14px;
    height: 14px;
    fill: white;
    transition: none;
}

[data-theme="light"] .theme-switch-thumb {
    transform: translateX(28px);
}

.site-banner {
    position: relative;
    height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    overflow: hidden;
}

#bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(var(--banner-overlay), var(--bg-color)), url('../images/dbp.jpg') center/cover no-repeat;
    z-index: -1;
    transform: scale(1.3);
    transition: transform 0.3s ease-out, background 0.5s ease;
    will-change: transform;
}

.banner-content h1 {
    font-size: 6rem;
    font-weight: 900;
    letter-spacing: 25px;
    color: var(--shimmer-col);
    background: var(--shimmer-grad);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: heroFadeIn 1.2s ease 0s both, shimmer 6s linear infinite 1.2s;
    transition: color 0.5s ease;
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(50px);
        filter: blur(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0px);
    }
}

.main-grid {
    max-width: 1400px;
    margin: -120px auto 50px;
    padding: 0 60px;
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
}

.post-card {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    padding: 50px;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: var(--card-shadow);
    cursor: pointer;
    position: relative;
}

.post-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-8px);
}

.post-card.pulled-out {
    transform: scale(0.98) translateY(10px);
    opacity: 0.8;
}

/* --- 新增：增强版的 Syncing 样式 --- */
.sync-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Fira Code', monospace;
    font-size: 0.7rem;
    color: var(--meta-text);
    margin-bottom: 15px;
    opacity: 0.7;
}

.sync-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-color);
    animation: pulseSync 1.5s infinite;
}

@keyframes pulseSync {
    0% {
        opacity: 0.3;
        transform: scale(0.8);
    }

    50% {
        opacity: 1;
        transform: scale(1.1);
    }

    100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
}

/* ------------------------------- */

.sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.monitor-card {
    background-color: var(--terminal-bg-base);
    border: 1px solid var(--accent-color);
    border-radius: 12px;
    padding: 25px;
    font-family: 'Fira Code', monospace;
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.monitor-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
    pointer-events: none;
}

.stat-bar-bg {
    width: 100%;
    height: 6px;
    background: rgba(128, 128, 128, 0.15);
    border-radius: 3px;
    margin-top: 6px;
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    background: var(--terminal-green);
    width: 0%;
    transition: width 0.8s ease, background-color 0.5s ease;
}

.monitor-logs {
    font-size: 0.7rem;
    color: var(--terminal-green);
    height: 80px;
    overflow: hidden;
    line-height: 1.6;
    margin-top: 15px;
    border-top: 1px solid rgba(128, 128, 128, 0.1);
    padding-top: 10px;
}

.sidebar-tags-widget {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    padding: 25px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

.sidebar-tags-widget h3 {
    font-size: 0.7rem;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    font-size: 0.65rem;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(128, 128, 128, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--meta-text);
    cursor: pointer;
}

.tag-item:hover {
    border-color: var(--accent-color);
    color: var(--main-text);
    background: rgba(88, 166, 255, 0.1);
}

.profile-card-wrapper {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.site-footer {
    margin-top: 100px;
    padding: 80px 8% 40px;
    background: linear-gradient(to bottom, transparent, var(--bg-color));
    border-top: 1px solid var(--glass-border);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand h2 {
    font-weight: 900;
    letter-spacing: 5px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--meta-text);
    font-size: 0.85rem;
    max-width: 300px;
}

.footer-links h3 {
    font-size: 0.7rem;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 25px;
    text-transform: uppercase;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    text-decoration: none;
    color: var(--meta-text);
    font-size: 0.85rem;
}

.footer-links ul li a:hover {
    color: var(--main-text);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--meta-text);
    font-size: 0.7rem;
    letter-spacing: 1px;
}

@media (max-width: 1150px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .main-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    .side-bar-left {
        display: none;
    }

    nav {
        height: 72px;
        padding: 0 1rem;
    }

    .nav-left {
        min-width: 0;
        gap: 0;
    }

    .nav-brand {
        font-size: 1rem;
        letter-spacing: 3px;
    }

    .view-projects-btn {
        margin-left: .55rem;
        padding: 6px 8px;
        font-size: .65rem;
        letter-spacing: 1px;
        white-space: nowrap;
    }

    .theme-switch-wrapper {
        flex: 0 0 auto;
        transform: scale(.9);
        transform-origin: right center;
    }

    .site-banner {
        height: 58vh;
        min-height: 360px;
    }

    .banner-content {
        width: calc(100% - 2rem);
    }

    .banner-content h1 {
        font-size: clamp(2.5rem, 13vw, 4rem);
        letter-spacing: clamp(6px, 2vw, 12px);
    }

    .banner-content p {
        font-size: .62rem;
        letter-spacing: 2px !important;
        white-space: nowrap;
    }

    .main-grid {
        width: 100%;
        margin: -4rem auto 2rem;
        padding: 0 1rem;
        gap: 1.5rem;
    }

    .post-card {
        padding: 1.35rem 1rem;
        margin-bottom: 1rem;
        border-radius: 14px;
    }

    .post-card h2 {
        margin: .7rem 0 !important;
        font-size: clamp(1.35rem, 7vw, 2rem);
        line-height: 1.3;
        overflow-wrap: anywhere;
    }

    .post-card p {
        font-size: .9rem;
        line-height: 1.65;
    }

    .sync-label {
        flex-wrap: wrap;
        font-size: .62rem;
        line-height: 1.5;
    }

    .sidebar-right {
        gap: 1.25rem;
    }

    .profile-card-wrapper,
    .monitor-card,
    .sidebar-tags-widget {
        border-radius: 14px;
    }

    .monitor-card,
    .sidebar-tags-widget {
        padding: 1rem !important;
    }

    .site-footer {
        margin-top: 2rem;
        padding: 2.5rem 1rem 1.5rem;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        margin-bottom: 2rem;
    }

    .footer-brand h2 {
        font-size: 1.4rem;
        letter-spacing: 3px;
        margin-bottom: .75rem;
    }

    .footer-links h3 {
        margin-bottom: .7rem;
    }

    .footer-bottom {
        font-size: .62rem;
        line-height: 1.6;
    }
}

@media (max-width: 380px) {
    .nav-brand {
        font-size: .88rem;
        letter-spacing: 2px;
    }

    .view-projects-btn {
        font-size: .58rem;
        padding-inline: 5px;
    }

    .theme-switch-wrapper {
        transform: scale(.82);
    }
}