:root {
    --primary: #6750A4;
    --primary-container: #EADDFF;
    --on-primary-container: #21005D;
    --surface: #FFFBFE;
    --surface-variant: #E7E0EC;
    --background: #F3EDF7;
    --on-surface: #1C1B1F;
    --on-surface-variant: #49454F;
    --outline: #79747E;
    --outline-variant: #CAC4D0;
    --border: #E0E0E0;
    /* 增大卡片圆角 */
    --card-radius: clamp(16px, 4vw, 24px);
    --button-radius: clamp(12px, 3vw, 24px);
    --elevation-1: 0 1px 1px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.05);
    --elevation-2: 0 2px 3px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.08);
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
    --base-font-size: clamp(14px, 2.5vw, 16px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans SC', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--on-surface);
    line-height: 1.6;
    padding: clamp(10px, 3vw, 20px);
    font-size: var(--base-font-size);
}

.container {
    max-width: min(900px, 95vw);
    margin: 0 auto;
    background: var(--surface);
    border-radius: var(--card-radius);
    box-shadow: var(--elevation-2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, var(--primary), #5e43a3);
    color: white;
    padding: clamp(20px, 5vw, 40px) clamp(15px, 3vw, 30px);
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

header::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

h1 {
    font-size: clamp(20px, 6vw, 28px);
    margin-bottom: 10px;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.date-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: clamp(10px, 3vw, 30px);
    margin-top: 15px;
    font-size: clamp(12px, 3vw, 15px);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.5), transparent);
    margin: 20px 0;
}

.content {
    padding: clamp(20px, 5vw, 40px);
}

h2 {
    color: var(--primary);
    margin: clamp(15px, 3vw, 35px) 0 clamp(10px, 2vw, 20px);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-container);
    font-size: clamp(18px, 5vw, 24px);
    font-weight: 600;
}

h3 {
    color: var(--on-surface);
    margin: clamp(10px, 3vw, 25px) 0 clamp(8px, 2vw, 15px);
    font-size: clamp(16px, 4.5vw, 20px);
    font-weight: 500;
}

p {
    margin-bottom: clamp(10px, 3vw, 18px);
    color: var(--on-surface-variant);
    line-height: 1.8;
}

ul, ol {
    margin: clamp(10px, 3vw, 20px) 0 clamp(10px, 3vw, 20px) clamp(20px, 5vw, 30px);
}

li {
    margin-bottom: clamp(5px, 2vw, 10px);
    color: var(--on-surface-variant);
    line-height: 1.7;
}

.highlight {
    background-color: var(--primary-container);
    border-left: 4px solid var(--primary);
    padding: clamp(15px, 3vw, 20px);
    margin: clamp(15px, 3vw, 25px) 0;
    /* 增大圆角 */
    border-radius: 0 var(--card-radius) var(--card-radius) 0;
    color: var(--on-primary-container);
}

.warning {
    background-color: #fef7e0;
    border-left: 4px solid #f9ab00;
    padding: clamp(15px, 3vw, 20px);
    margin: clamp(15px, 3vw, 25px) 0;
    /* 增大圆角 */
    border-radius: 0 var(--card-radius) var(--card-radius) 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: clamp(15px, 3vw, 25px) 0;
    box-shadow: var(--elevation-1);
    /* 增大圆角 */
    border-radius: var(--card-radius);
    overflow: hidden;
}

th {
    background-color: var(--primary-container);
    color: var(--on-primary-container);
    padding: clamp(8px, 3vw, 16px);
    text-align: left;
    font-weight: 600;
}

td {
    padding: clamp(8px, 3vw, 16px);
    border-bottom: 1px solid var(--outline-variant);
    color: var(--on-surface-variant);
}

tr:nth-child(even) {
    background-color: var(--surface-variant);
}

a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    text-decoration: underline;
}

.contact-info {
    background-color: var(--surface-variant);
    padding: clamp(15px, 3vw, 25px);
    /* 增大圆角 */
    border-radius: var(--card-radius);
    margin: clamp(15px, 3vw, 30px) 0;
    text-align: center;
    box-shadow: var(--elevation-1);
}

.update-highlight {
    background-color: #e6f4ea;
    padding: clamp(15px, 3vw, 20px);
    /* 增大圆角 */
    border-radius: var(--card-radius);
    margin: clamp(15px, 3vw, 30px) 0;
    font-weight: 500;
    box-shadow: var(--elevation-1);
}

.footer-note {
    text-align: center;
    padding: clamp(15px, 3vw, 25px);
    color: var(--on-surface-variant);
    font-size: clamp(12px, 2.5vw, 14px);
    border-top: 1px solid var(--outline-variant);
    margin-top: clamp(10px, 3vw, 20px);
}

.material-icons {
    vertical-align: middle;
    margin-right: 8px;
}

.card {
    background: var(--surface);
    /* 增大圆角 */
    border-radius: var(--card-radius);
    box-shadow: var(--elevation-1);
    padding: clamp(15px, 3vw, 25px);
    margin: clamp(15px, 3vw, 25px) 0;
    border: 1px solid var(--outline-variant);
}

.card-title {
    display: flex;
    align-items: center;
    color: var(--primary);
    margin-bottom: clamp(10px, 2vw, 15px);
    font-size: clamp(16px, 4.5vw, 20px);
    font-weight: 600;
}

img {
    max-width: 100%;
    height: auto;
}

/* 核心响应式断点：768px以下设备 */
@media (max-width: 768px) {
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .card {
        padding: clamp(15px, 4vw, 25px);
    }
    
    .container > .content > .card > ol, 
    .container > .content > .card > ul {
        margin-left: 15px;
    }
    
    h2, h3 {
        margin-top: 20px;
    }
}

/* 极窄屏优化（小于480px） */
@media (max-width: 480px) {
    :root {
        --base-font-size: 13px;
    }
    
    .date-info {
        flex-direction: column;
        gap: 5px;
    }
    
    .card {
        padding: 12px;
    }
    
    h2 {
        margin-top: 15px;
        margin-bottom: 8px;
    }
}