/* ===== common.css — 全局共享样式 ===== */

/* 全局重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(145deg, #f0f4ff 0%, #e8eeff 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1.5rem;
    color: #1e293b;
}

/* 玻璃容器 */
.app-container {
    max-width: 1280px;
    width: 100%;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 48px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15), inset 0 1px 2px rgba(255,255,255,0.7);
    padding: 2rem 2.5rem;
    border: 1px solid rgba(255,255,255,0.4);
}

/* 头部 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo i {
    background: #4F6EF7;
    color: white;
    padding: 0.5rem;
    border-radius: 14px;
    font-size: 1.2rem;
    box-shadow: 0 8px 16px -6px rgba(79,110,247,0.3);
}

/* 返回按钮 — 与上传按钮统一风格 */
.back-btn {
    background: #4F6EF7;
    color: white;
    border: none;
    padding: 0.5rem 1.3rem;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(79,110,247,0.25);
}

.back-btn:hover { background: #3b5de7; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(79,110,247,0.35); }

/* 导航按钮 */
.nav-actions { display: flex; gap: 0.75rem; align-items: center; position: relative; }

.nav-btn {
    background: transparent; border: none; padding: 0.5rem 1rem;
    border-radius: 40px; font-weight: 500; font-size: 0.9rem;
    color: #475569; cursor: pointer; transition: 0.2s;
    display: flex; align-items: center; gap: 6px;
}

.nav-btn:hover { background: rgba(79,110,247,0.08); color: #4F6EF7; }
.nav-btn.primary-btn { background: #1e293b; color: white; }
.nav-btn.primary-btn:hover { background: #4F6EF7; transform: scale(1.02); }

/* 模态框遮罩 */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.modal-overlay.active { display: flex; }

.modal-close {
    position: absolute;
    top: 0.5rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2.2rem;
    color: #475569;
    cursor: pointer;
    transition: 0.2s;
    line-height: 1;
    z-index: 10;
}

.modal-close:hover { color: #1e293b; transform: scale(1.1); }

/* 板块标题 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
}

.section-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h3 i {
    color: #4F6EF7;
    font-size: 1.3rem;
}

/* 共享动画 */
@keyframes springBounce {
    0% { transform: scale(0.95); opacity: 0.7; }
    30% { transform: scale(1.03); opacity: 1; }
    50% { transform: scale(0.98); }
    70% { transform: scale(1.01); }
    100% { transform: scale(1); }
}

@keyframes slideInLeft {
    0% { transform: translateX(-30px); opacity: 0.5; }
    40% { transform: translateX(5px); }
    70% { transform: translateX(-2px); }
    100% { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    0% { transform: translateX(30px); opacity: 0.5; }
    40% { transform: translateX(-5px); }
    70% { transform: translateX(2px); }
    100% { transform: translateX(0); opacity: 1; }
}