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

:root {
    --black: #0a0a0a;
    --dark: #1a1a1a;
    --darker: #111111;
    --yellow: #f0e68c;
    --yellow-glow: #ffd700;
    --yellow-dim: #b8a832;
    --gray: #888;
    --red: #ff4444;
    --green: #4CAF50;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--black);
    color: var(--yellow);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 神秘背景动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(240, 230, 140, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(240, 230, 140, 0.02) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* 粒子效果 */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--yellow);
    border-radius: 50%;
    opacity: 0;
    animation: float 8s infinite;
}

@keyframes float {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-10vh) scale(1);
    }
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 神秘标题 */
h1 {
    text-align: center;
    font-size: 28px;
    font-weight: 300;
    letter-spacing: 8px;
    text-transform: uppercase;
    margin: 30px 0;
    color: var(--yellow);
    text-shadow: 0 0 20px rgba(240, 230, 140, 0.3);
    position: relative;
}

h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow), transparent);
    margin: 15px auto 0;
}

h2 {
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 4px;
    text-align: center;
    margin: 20px 0;
    color: var(--yellow-dim);
}

/* 神秘盒子 */
.box {
    background: var(--dark);
    border: 1px solid rgba(240, 230, 140, 0.1);
    border-radius: 16px;
    padding: 25px;
    margin: 15px 0;
    position: relative;
    overflow: hidden;
}

.box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow-dim), transparent);
    opacity: 0.5;
}

/* 输入框 */
input[type="text"],
input[type="password"],
textarea,
input[type="file"] {
    width: 100%;
    padding: 14px 18px;
    margin: 10px 0;
    background: var(--darker);
    border: 1px solid rgba(240, 230, 140, 0.15);
    border-radius: 12px;
    color: var(--yellow);
    font-size: 15px;
    outline: none;
    transition: all 0.3s;
}

input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
    border-color: var(--yellow-dim);
    box-shadow: 0 0 15px rgba(240, 230, 140, 0.1);
}

input::placeholder {
    color: rgba(240, 230, 140, 0.3);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* 神秘按钮 */
button {
    width: 100%;
    padding: 15px;
    margin: 10px 0;
    background: transparent;
    border: 1px solid var(--yellow-dim);
    border-radius: 12px;
    color: var(--yellow);
    font-size: 15px;
    letter-spacing: 4px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(240, 230, 140, 0.1), transparent);
    transition: left 0.5s;
}

button:hover::before {
    left: 100%;
}

button:hover {
    border-color: var(--yellow);
    box-shadow: 0 0 20px rgba(240, 230, 140, 0.15);
}

button:active {
    transform: scale(0.98);
}

/* 危险按钮 */
.btn-danger {
    border-color: var(--red);
    color: #ff8888;
}

.btn-danger:hover {
    box-shadow: 0 0 20px rgba(255, 68, 68, 0.15);
}

/* 导航 */
.nav {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.nav a,
.admin-nav a {
    flex: 1;
    min-width: 120px;
    padding: 12px 20px;
    background: var(--dark);
    border: 1px solid rgba(240, 230, 140, 0.15);
    border-radius: 10px;
    color: var(--yellow-dim);
    text-decoration: none;
    text-align: center;
    font-size: 13px;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.nav a:hover,
.admin-nav a:hover {
    border-color: var(--yellow-dim);
    color: var(--yellow);
    box-shadow: 0 0 15px rgba(240, 230, 140, 0.1);
}

/* 错误/成功提示 */
.error {
    color: #ff8888;
    text-align: center;
    padding: 12px;
    background: rgba(255, 68, 68, 0.08);
    border: 1px solid rgba(255, 68, 68, 0.2);
    border-radius: 10px;
    margin: 10px 0;
    font-size: 13px;
    letter-spacing: 1px;
}

.success {
    color: #88ff88;
    text-align: center;
    padding: 12px;
    background: rgba(76, 175, 80, 0.08);
    border: 1px solid rgba(76, 175, 80, 0.2);
    border-radius: 10px;
    margin: 10px 0;
    font-size: 13px;
    letter-spacing: 1px;
}

/* 个人资料 */
.profile-box {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.avatar-section {
    text-align: center;
}

.avatar-large {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--yellow-dim);
    box-shadow: 0 0 30px rgba(240, 230, 140, 0.15);
    margin-bottom: 15px;
}

.info-section p {
    margin: 12px 0;
    color: var(--yellow-dim);
    font-size: 14px;
}

.info-section strong {
    color: var(--yellow);
    font-weight: 400;
}

/* 表格 */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    background: var(--darker);
    color: var(--yellow-dim);
    padding: 12px;
    text-align: left;
    font-weight: 400;
    letter-spacing: 2px;
    border-bottom: 1px solid rgba(240, 230, 140, 0.1);
}

td {
    padding: 12px;
    border-bottom: 1px solid rgba(240, 230, 140, 0.05);
    color: var(--gray);
}

tr:hover td {
    color: var(--yellow);
}

/* 链接 */
a {
    color: var(--yellow-dim);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--yellow);
}

/* 聊天页面 */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 480px;
    margin: 0 auto;
}

.chat-header {
    background: var(--dark);
    border-bottom: 1px solid rgba(240, 230, 140, 0.1);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.chat-header strong {
    color: var(--yellow);
    font-weight: 400;
    letter-spacing: 2px;
}

.timer {
    font-size: 16px;
    color: var(--yellow-glow);
    font-weight: 300;
    letter-spacing: 2px;
}

.chat-box {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    background: var(--black);
}

.message {
    margin: 10px 0;
    padding: 12px 16px;
    border-radius: 16px;
    max-width: 75%;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
    animation: messageAppear 0.3s ease;
}

@keyframes messageAppear {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.me {
    background: linear-gradient(135deg, rgba(240, 230, 140, 0.15), rgba(240, 230, 140, 0.08));
    margin-left: auto;
    border-bottom-right-radius: 4px;
    color: var(--yellow);
}

.message.other {
    background: var(--dark);
    border-bottom-left-radius: 4px;
    color: var(--gray);
}

.message img {
    max-width: 200px;
    border-radius: 8px;
    display: block;
    margin: 5px 0;
}

.input-area {
    display: flex;
    gap: 8px;
    padding: 12px 15px;
    background: var(--dark);
    border-top: 1px solid rgba(240, 230, 140, 0.1);
    align-items: center;
}

.input-area input[type="text"] {
    flex: 1;
    margin: 0;
    background: var(--darker);
}

.input-area button {
    width: auto;
    padding: 12px 18px;
    margin: 0;
    font-size: 13px;
    white-space: nowrap;
}

.photo-btn {
    border-color: #4488ff;
    color: #88bbff;
}

.report-btn {
    border-color: var(--red);
    color: #ff8888;
}

/* 匹配动画 */
.match-animation {
    width: 180px;
    height: 180px;
    margin: 40px auto;
    position: relative;
}

.circle {
    position: absolute;
    border: 1.5px solid var(--yellow-dim);
    border-radius: 50%;
    animation: ripple 2.5s infinite;
}

.circle:nth-child(1) {
    width: 40px;
    height: 40px;
    top: 70px;
    left: 70px;
    animation-delay: 0s;
    border-color: var(--yellow);
}

.circle:nth-child(2) {
    width: 80px;
    height: 80px;
    top: 50px;
    left: 50px;
    animation-delay: 0.6s;
}

.circle:nth-child(3) {
    width: 120px;
    height: 120px;
    top: 30px;
    left: 30px;
    animation-delay: 1.2s;
}

.circle:nth-child(4) {
    width: 160px;
    height: 160px;
    top: 10px;
    left: 10px;
    animation-delay: 1.8s;
}

@keyframes ripple {
    0% {
        transform: scale(0.6);
        opacity: 0.8;
        box-shadow: 0 0 10px rgba(240, 230, 140, 0.2);
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
        box-shadow: 0 0 30px rgba(240, 230, 140, 0);
    }
}

.timer-display {
    text-align: center;
    margin: 20px 0;
}

.timer-display .number {
    font-size: 48px;
    font-weight: 100;
    color: var(--yellow);
    letter-spacing: 4px;
    font-variant-numeric: tabular-nums;
}

.timer-display .label {
    font-size: 12px;
    color: var(--yellow-dim);
    letter-spacing: 6px;
    margin-top: 5px;
}

.est-time {
    text-align: center;
    color: var(--yellow-dim);
    font-size: 13px;
    letter-spacing: 2px;
    margin: 15px 0;
}

/* 后台导航 */
.admin-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--dark);
    border-radius: 12px;
    border: 1px solid rgba(240, 230, 140, 0.1);
}

.admin-nav a {
    flex: 1;
    min-width: 100px;
    padding: 10px;
    font-size: 12px;
}

/* 统计卡片 */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 15px 0;
}

.stat-card {
    background: var(--dark);
    border: 1px solid rgba(240, 230, 140, 0.1);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow-dim), transparent);
}

.stat-card h3 {
    color: var(--yellow-dim);
    font-size: 11px;
    letter-spacing: 3px;
    font-weight: 400;
    text-transform: uppercase;
}

.stat-card .num {
    font-size: 32px;
    color: var(--yellow);
    font-weight: 100;
    margin-top: 8px;
    letter-spacing: 2px;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--yellow-dim);
    border-radius: 2px;
}

/* 响应式 */
@media (min-width: 768px) {
    .container {
        max-width: 600px;
    }
    
    .stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 特殊效果 */
.glow-text {
    text-shadow: 0 0 10px rgba(240, 230, 140, 0.3);
}

.mystery-border {
    position: relative;
}

.mystery-border::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--yellow-dim), transparent, var(--yellow-dim));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.3;
    pointer-events: none;
}