/* ========== RESET & 全局变量 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 主题色彩与亚克力材质核心变量 */
:root {
    --gradient-start: #ff9a9e;
    --gradient-end: #a1f0c3;
    --glass-bg: rgba(255, 255, 255, 0.28);
    --glass-border: rgba(255, 255, 255, 0.45);
    --glass-shadow: 0 25px 45px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.02);
    --text-dark: #1e2a2e;
    --text-soft: #2d3e42;
    --accent-pink: #f36f7c;
    --accent-green: #5bc8a8;
}

body {
    min-height: 100vh;
    background-image: url("./image/rana2.jpg");
    background-size: cover;
    background-position: center 30%;
    background-attachment: fixed;
    background-repeat: no-repeat;

    font-family: 'Segoe UI', 'Inter', 'Poppins', system-ui, -apple-system, 'SF Pro Text', 'Noto Sans', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 2rem 2rem 4rem;
}

/* 主容器宽度统一限制，内容居中 */
.main-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* ========== 1. 顶部标题问候区 ========== */
.hero-section {
    margin-bottom: 3rem;
    text-align: center;
    width: 100%;
    backdrop-filter: blur(8px);
    border-radius: 2rem;
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 240, 0.35);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    background: linear-gradient(120deg, #ffb813, #93dbff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.hero-greeting {
    font-size: 1.3rem;
    margin-top: 0.75rem;
    color: #ffffff;
    font-weight: 500;
    background: rgba(0, 154, 67, 0.5);
    display: inline-block;
    padding: 0.3rem 1.2rem;
    border-radius: 40px;
    backdrop-filter: blur(4px);
}

@media (max-width: 680px) {
    .hero-title { font-size: 2.2rem; }
    .hero-greeting { font-size: 1rem; }
}

/* ========== 2. 中间双栏：LinK入口(左) + JD入口(右) ========== */
.middle-dashboard {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 公共卡片样式 (亚克力+圆角斜角渐变) */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: transform 0.25s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 1.8rem;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 32px 55px rgba(0, 0, 0, 0.18);
    background: rgba(255, 255, 255, 0.33);
    border-color: rgba(255, 255, 255, 0.65);
}

/* 斜角渐变 overlay (粉绿) */
.glass-card::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: linear-gradient(125deg,
            rgba(255, 154, 158, 0.35) 0%,
            rgba(161, 240, 195, 0.4) 100%);
    border-radius: 2rem;
    z-index: 0;
    pointer-events: none;
    mix-blend-mode: soft-light;
}

.card-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    cursor: pointer;
}

.card-title {
    font-size: 1.7rem;
    font-weight: 700;
    background: linear-gradient(120deg, #f36f7c, #5bc8a8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    border-left: 4px solid #ff9a9e;
    padding-left: 0.75rem;
}

/* 预览区样式 */
.preview-area {
    background: rgba(0, 0, 0, 0);
    border-radius: 1.2rem;
    padding: 1rem;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px dashed rgba(255, 255, 210, 0.6);
    flex-direction: column;
    gap: 0.8rem;
}

.preview-placeholder {
    font-size: 3rem;
    background: linear-gradient(120deg, #ff92d7, #8bf5ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.preview-text {
    font-weight: 500;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.429);
    padding: 0.25rem 0.9rem;
    border-radius: 60px;
    font-size: 0.9rem;
}

/* 额外装饰：左右卡片增加柔和光晕 */
.left-card::after,
.right-card::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    pointer-events: none;
    z-index: 1;
    border-radius: 2rem;
}

.left-card::after {
    bottom: 0;
    left: 0;
    background: radial-gradient(circle at bottom left, rgba(243, 111, 124, 0.2), transparent);
}

.right-card::after {
    top: 0;
    right: 0;
    background: radial-gradient(circle at top right, rgba(91, 200, 168, 0.2), transparent);
}

/* ========== 响应式 ========== */
@media (max-width: 780px) {
    body { padding: 1rem; }
    .middle-dashboard {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .hero-title { font-size: 2rem; }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(255, 255, 240, 0.2);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb {
    background: rgba(90, 190, 140, 0.6);
    border-radius: 10px;
}

a {
    text-decoration: none;
}