/* ===== 基础重置与星空背景 ===== */
* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'VT323', 'Gulim', '굴림', 'Dotum', '돋움', monospace;
    font-size: 18px;
    color: #e0e0ff;
    background: #050510;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    position: relative;
}

.starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(120, 80, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 255, 255, 0.1) 0%, transparent 40%),
        linear-gradient(180deg, #050510 0%, #0a0a20 50%, #101030 100%);
    overflow: hidden;
}

.star {
    position: absolute;
    background: #fff;
    border-radius: 50%;
    opacity: 0.8;
    animation: twinkle var(--duration, 3s) ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

.shooting-star {
    position: absolute;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    animation: shoot 2s linear forwards;
    opacity: 0.8;
}

@keyframes shoot {
    0% { transform: translateX(0) translateY(0) rotate(-45deg); opacity: 1; }
    100% { transform: translateX(300px) translateY(300px) rotate(-45deg); opacity: 0; }
}

/* ===== 布局 ===== */
.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    min-width: 1100px;
}

.sidebar {
    width: 280px;
    flex-shrink: 0;
    background: rgba(20, 20, 50, 0.92);
    border-right: 2px solid #00ffff;
    box-shadow:
        inset 0 0 20px rgba(0, 255, 255, 0.1),
        4px 0 20px rgba(0, 255, 255, 0.15);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    backdrop-filter: blur(4px);
}

.main-content {
    flex: 1;
    padding: 30px 40px;
    background: rgba(10, 10, 30, 0.82);
    min-height: 100vh;
    border-left: 7px solid rgba(100, 80, 180, 0.5);
    box-shadow: inset 2px 0 0 #333366;
    backdrop-filter: blur(4px);
}

/* ===== 侧边栏 ===== */
.menu-header {
    text-align: center;
    padding-bottom: 12px;
    border-bottom: 2px dotted #00ffff;
    margin-bottom: 8px;
}

.site-title {
    font-size: 32px;
    color: #00ffff;
    text-shadow: 0 0 10px #00ffff, 0 0 20px #0088ff;
    letter-spacing: 4px;
}

.site-subtitle {
    font-size: 16px;
    color: #a855f7;
    text-shadow: 0 0 6px #a855f7;
    letter-spacing: 2px;
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-list li {
    margin-bottom: 14px;
    padding-left: 4px;
}

.menu-list a {
    color: #00ccff;
    font-weight: bold;
    font-size: 20px;
    text-decoration: underline;
    text-shadow: 0 0 6px rgba(0, 200, 255, 0.5);
    transition: color 0.2s;
}

.menu-list a:hover {
    color: #ff66cc;
    text-shadow: 0 0 10px #ff66cc;
}

.menu-icon {
    color: #a855f7;
    font-size: 18px;
    vertical-align: middle;
    margin-right: 4px;
    text-shadow: 0 0 6px #a855f7;
}

.new-tag {
    color: #ff3333;
    font-size: 13px;
    font-weight: bold;
    vertical-align: top;
    animation: blink 1s step-end infinite;
    text-shadow: 0 0 6px #ff3333;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.link-info {
    font-size: 15px;
    color: #ccccff;
    line-height: 1.5;
    margin-top: 10px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px dashed #5555aa;
    border-radius: 4px;
}

.banner-area {
    margin-top: 10px;
    text-align: center;
}

.banner-img {
    border: 2px solid #00ffff;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    max-width: 100%;
    image-rendering: pixelated;
}

/* ===== 数字计数器 ===== */
.counter-area {
    text-align: center;
    margin-top: 10px;
}

.counter-wrapper {
    background: #0a0a1a;
    display: inline-block;
    padding: 4px 8px;
    border: 1px solid #333;
    border-radius: 3px;
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.8);
    position: relative;
    font-family: 'DSEG7-Classic', monospace;
}

.digital-bg, .digital-fg {
    font-size: 26px;
    letter-spacing: 3px;
    line-height: 1;
}

.digital-bg {
    color: #1a3a1a;
    position: absolute;
    top: 4px;
    left: 8px;
    z-index: 1;
}

.digital-fg {
    color: #32ff32;
    position: relative;
    z-index: 2;
    text-shadow: 0 0 6px #00ff00;
}

.kiriban-info {
    font-size: 14px;
    margin-top: 6px;
    color: #aaaaff;
}

/* ===== 主内容区通用 ===== */
.view-loading, .view-error {
    text-align: center;
    padding: 60px 20px;
    color: #aaaaff;
    font-size: 20px;
}

.view-error a {
    color: #00ccff;
    text-decoration: underline;
}

.header-section {
    text-align: center;
    margin-bottom: 30px;
}

.header-section h1 {
    font-size: 42px;
    color: #00ffff;
    text-shadow: 0 0 12px #00ffff, 0 0 24px #0088ff;
    margin: 0 0 10px 0;
    letter-spacing: 6px;
}

.welcome-msg {
    font-size: 20px;
    color: #ffccff;
    text-shadow: 0 0 8px rgba(255, 150, 255, 0.5);
    margin: 8px 0;
}

.hero-text {
    font-size: 28px;
    color: #00ffff;
    text-shadow: 0 0 12px #00ffff, 0 0 24px #0088ff;
    letter-spacing: 2px;
}

/* ===== 公告条 ===== */
.warning-bar {
    margin-left: -40px;
    margin-right: -40px;
    width: calc(100% + 80px);
    background: linear-gradient(90deg, #1a0a3e, #2a1050, #1a0a3e);
    border-top: 1px solid #00ffff;
    border-bottom: 1px solid #00ffff;
    color: #00ffff;
    font-weight: bold;
    font-size: 17px;
    padding: 6px 40px;
    text-align: center;
    text-shadow: 0 0 8px #00ffff;
    margin-bottom: 30px;
}

.warning-bar marquee {
    display: block;
    width: 100%;
}

.star-orange { color: #ffad33; text-shadow: 0 0 8px #ffad33; }
.star-green  { color: #00ff88; text-shadow: 0 0 8px #00ff88; }
.star-purple { color: #cc66ff; text-shadow: 0 0 8px #cc66ff; }

/* ===== 卡片与按钮 ===== */
.card {
    background: rgba(20, 20, 50, 0.7);
    border: 1px solid #5555aa;
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

.card h2 {
    margin-top: 0;
    color: #00ffff;
    text-shadow: 0 0 8px #00ffff;
    border-bottom: 1px dashed #5555aa;
    padding-bottom: 10px;
    font-size: 28px;
}

.card p {
    color: #ccccff;
    line-height: 1.6;
}

.room-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.room-card {
    background: rgba(25, 25, 60, 0.8);
    border: 1px solid #00ffff;
    border-radius: 6px;
    padding: 18px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.room-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.room-card .icon {
    font-size: 36px;
    margin-bottom: 10px;
    text-shadow: 0 0 12px currentColor;
}

.room-card h3 {
    margin: 0 0 8px 0;
    color: #00ffff;
    font-size: 24px;
}

.room-card p {
    margin: 0 0 14px 0;
    font-size: 15px;
    color: #aaaaff;
}

.btn {
    display: inline-block;
    background: linear-gradient(180deg, #2a2a70, #1a1a45);
    color: #00ffff;
    border: 1px solid #00ffff;
    padding: 8px 18px;
    font-family: 'VT323', monospace;
    font-size: 18px;
    cursor: pointer;
    text-decoration: none;
    border-radius: 3px;
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.2);
    transition: all 0.2s;
}

.btn:hover {
    background: linear-gradient(180deg, #3a3a90, #2a2a60);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
    color: #ffffff;
}

.btn.secondary {
    background: linear-gradient(180deg, #3a1a60, #251040);
    border-color: #a855f7;
    color: #cc99ff;
}

.btn.secondary:hover {
    background: linear-gradient(180deg, #4a2080, #351050);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.4);
}

.btn.danger {
    background: linear-gradient(180deg, #601a30, #401020);
    border-color: #ff6699;
    color: #ff99bb;
}

input[type="text"], input[type="password"], select {
    background: #0a0a1a;
    color: #00ffff;
    border: 1px solid #5555aa;
    padding: 8px 12px;
    font-family: 'VT323', monospace;
    font-size: 18px;
    border-radius: 3px;
    outline: none;
}

input[type="text"]:focus, select:focus {
    border-color: #00ffff;
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
}

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

.form-row label {
    color: #aaaaff;
    min-width: 80px;
}

/* ===== 房间页面通用 ===== */
.room-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.room-header h2 {
    margin: 0;
    color: #00ffff;
    text-shadow: 0 0 8px #00ffff;
    font-size: 30px;
}

.room-info {
    color: #aaaaff;
    font-size: 16px;
}

/* ===== 聊天室 ===== */
.chat-layout {
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 16px;
    height: 520px;
}

.chat-messages {
    background: rgba(10, 10, 25, 0.9);
    border: 1px solid #5555aa;
    border-radius: 4px;
    padding: 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-message {
    padding: 6px 10px;
    border-radius: 3px;
    background: rgba(30, 30, 70, 0.5);
    color: #e0e0ff;
    word-break: break-word;
}

.chat-message .nick {
    color: #00ffff;
    font-weight: bold;
    margin-right: 6px;
    text-shadow: 0 0 6px rgba(0, 255, 255, 0.4);
}

.chat-message .time {
    color: #7777aa;
    font-size: 14px;
    margin-right: 6px;
}

.chat-message.system {
    background: rgba(80, 40, 100, 0.4);
    color: #cc99ff;
    font-style: italic;
}

.chat-sidebar {
    background: rgba(20, 20, 45, 0.8);
    border: 1px solid #5555aa;
    border-radius: 4px;
    padding: 12px;
}

.chat-sidebar h4 {
    margin: 0 0 10px 0;
    color: #00ffff;
    border-bottom: 1px dashed #5555aa;
    padding-bottom: 6px;
}

.user-list {
    list-style: none;
    padding: 0;
    margin: 0;
    color: #ccccff;
}

.user-list li {
    padding: 3px 0;
}

.chat-input-area {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.chat-input-area input {
    flex: 1;
}

/* ===== 茶绘 ===== */
.oekaki-layout {
    display: grid;
    grid-template-columns: 80px 1fr 220px;
    gap: 16px;
    height: 560px;
}

.oekaki-tools {
    background: rgba(20, 20, 45, 0.8);
    border: 1px solid #5555aa;
    border-radius: 4px;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.color-swatch {
    width: 28px;
    height: 28px;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 0 4px rgba(0,0,0,0.5);
}

.color-swatch.active {
    border-color: #fff;
    box-shadow: 0 0 8px currentColor;
}

.tool-btn {
    width: 36px;
    height: 36px;
    background: rgba(40, 40, 80, 0.8);
    border: 1px solid #5555aa;
    color: #aaaaff;
    cursor: pointer;
    border-radius: 3px;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn.active {
    border-color: #00ffff;
    color: #00ffff;
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
}

.oekaki-canvas-area {
    background: rgba(10, 10, 25, 0.9);
    border: 1px solid #5555aa;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.oekaki-canvas {
    background: #ffffff;
    cursor: crosshair;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.oekaki-sidebar {
    background: rgba(20, 20, 45, 0.8);
    border: 1px solid #5555aa;
    border-radius: 4px;
    padding: 12px;
}

.brush-size {
    display: flex;
    gap: 6px;
    margin: 10px 0;
}

.brush-size span {
    display: inline-block;
    background: #fff;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
}

.brush-size span.active {
    border-color: #00ffff;
}

/* ===== FC 游戏室 ===== */
.fc-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 20px;
}

.fc-screen-area {
    background: rgba(10, 10, 25, 0.95);
    border: 2px solid #00ffff;
    border-radius: 4px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.15);
}

.fc-canvas {
    background: #000;
    image-rendering: pixelated;
    border: 1px solid #333;
    width: 512px;
    height: 480px;
    max-width: 100%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
}

.fc-controls {
    background: rgba(20, 20, 45, 0.8);
    border: 1px solid #5555aa;
    border-radius: 4px;
    padding: 16px;
}

.fc-controls h4 {
    margin: 0 0 12px 0;
    color: #00ffff;
    border-bottom: 1px dashed #5555aa;
    padding-bottom: 6px;
}

.fc-rom-select {
    width: 100%;
    margin-bottom: 12px;
}

.key-map {
    font-size: 15px;
    color: #aaaaff;
    line-height: 1.6;
    margin-top: 12px;
}

.key-map strong {
    color: #00ffff;
}

.fc-status {
    color: #aaaaff;
    font-size: 15px;
    min-height: 22px;
}

.fc-status.online {
    color: #00ff88;
    text-shadow: 0 0 8px #00ff88;
}

/* ===== 关于页 ===== */
.about-section {
    line-height: 1.8;
    color: #ccccff;
}

.about-section h2 {
    color: #00ffff;
    text-shadow: 0 0 8px #00ffff;
}

/* ===== 链接集页面 ===== */
.links-section {
    line-height: 1.8;
    color: #ccccff;
}

.links-section h2 {
    color: #00ffff;
    text-shadow: 0 0 8px #00ffff;
}

.links-section h3 {
    color: #ff66cc;
    text-shadow: 0 0 6px rgba(255, 102, 204, 0.5);
    margin-top: 28px;
    margin-bottom: 12px;
    border-bottom: 1px dashed #555588;
    padding-bottom: 6px;
}

.links-intro {
    font-size: 20px;
    color: #ffccff;
    text-shadow: 0 0 8px rgba(255, 150, 255, 0.5);
}

.links-ref {
    font-size: 16px;
    color: #9999cc;
}

.links-category {
    margin-bottom: 10px;
}

.links-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 17px;
}

.links-table th,
.links-table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid #333366;
}

.links-table th {
    color: #00ffff;
    background: rgba(0, 255, 255, 0.08);
    font-weight: normal;
    letter-spacing: 1px;
}

.links-table td:first-child {
    color: #00ffff;
    font-family: 'VT323', monospace;
    width: 160px;
}

.links-table td:nth-child(2) {
    color: #aaaaee;
}

.links-table td a {
    color: #ffccff;
    text-decoration: none;
    border-bottom: 1px dotted #ff66cc;
    transition: color 0.2s;
}

.links-table td a:hover {
    color: #00ffff;
    border-bottom-color: #00ffff;
}

.links-note {
    margin-top: 30px;
    padding: 12px;
    background: rgba(255, 102, 204, 0.08);
    border: 1px dashed #ff66cc;
    color: #ff99dd;
    font-size: 16px;
}

.links-note code {
    color: #00ffff;
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 3px;
}

/* ===== 响应式底线 ===== */
@media (max-width: 1150px) {
    .container {
        min-width: auto;
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid #00ffff;
    }
    .main-content {
        min-height: auto;
    }
}