/* ============================================================
 * CNCEO 全站公共样式
 * 所有页面共用
 * ============================================================ */

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

:root {
    /* 品牌色 */
    --brand: #c8102e;
    --brand-deep: #a00d24;
    --brand-light: #e63950;
    --brand-soft: rgba(200, 16, 46, 0.06);
    --brand-soft-08: rgba(200, 16, 46, 0.08);
    --brand-soft-10: rgba(200, 16, 46, 0.10);
    --brand-soft-12: rgba(200, 16, 46, 0.12);
    --brand-soft-15: rgba(200, 16, 46, 0.15);
    --brand-soft-20: rgba(200, 16, 46, 0.20);
    --brand-soft-25: rgba(200, 16, 46, 0.25);
    --brand-bg: #fff5f7;
    --brand-bg-deep: #ffe8ec;

    /* 中性色 */
    --ink: #1a2332;
    --ink-soft: #333;
    --ink-muted: #666;
    --ink-light: #888;
    --ink-lighter: #999;
    --ink-lightest: #b0b8c8;
    --border: #e8ecf1;
    --border-light: #f0f4f8;
    --bg: #f5f6f8;
    --bg-light: #f0f4f8;

    /* 状态色 */
    --success: #059669;
    --success-bg: #d1fae5;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --info: #2563eb;
    --info-bg: #dbeafe;

    /* 圆角 */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow: 0 2px 12px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);

    /* 过渡 */
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--brand-soft-20);
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: var(--brand-soft-25); }

/* ============================================================
 * 顶部导航栏（全站统一）
 * ============================================================ */
.app-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 10px 20px;
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
    min-height: 60px;
}
.app-header.fixed { position: fixed; top: 0; left: 0; right: 0; }

.app-logo {
    font-weight: 800; font-size: 19px;
    color: var(--brand); text-decoration: none;
    display: flex; align-items: center; gap: 6px;
    flex-shrink: 0;
}
.app-logo span { color: var(--ink); font-weight: 700; }

.app-search {
    flex: 1; min-width: 180px;
    display: flex; align-items: center;
    background: var(--bg);
    border-radius: var(--radius-full);
    padding: 4px 4px 4px 18px;
    border: 1.5px solid transparent;
    transition: var(--transition);
}
.app-search:focus-within { border-color: var(--brand); background: #fff; }
.app-search input {
    flex: 1; border: none; background: transparent;
    outline: none; font-size: 13px; color: var(--ink);
    padding: 7px 0;
}
.app-search input::placeholder { color: var(--ink-lightest); }
.app-search button {
    background: var(--brand); border: none; color: #fff;
    padding: 7px 18px; border-radius: var(--radius-full);
    font-size: 12px; font-weight: 600;
    cursor: pointer; transition: var(--transition);
}
.app-search button:hover { background: var(--brand-deep); }

.app-header-actions {
    display: flex; align-items: center; gap: 8px;
    flex-shrink: 0;
}

.app-btn-icon {
    padding: 7px 14px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-full);
    font-size: 12px; font-weight: 500;
    color: var(--ink); text-decoration: none;
    display: inline-flex; align-items: center; gap: 5px;
    transition: var(--transition);
    cursor: pointer; font-family: inherit;
}
.app-btn-icon:hover { background: var(--bg); }
.app-btn-icon .label-text { display: inline; }

.app-btn-icon.cart {
    background: var(--brand-bg); color: var(--brand);
    border-color: var(--brand-soft-15);
}
.app-btn-icon.cart .count {
    background: var(--brand); color: #fff;
    padding: 0 7px; min-width: 18px; text-align: center;
    border-radius: 10px; font-size: 11px; font-weight: 700;
    line-height: 18px;
}

.app-btn-auth {
    padding: 7px 16px;
    background: linear-gradient(135deg, var(--brand), var(--brand-light));
    color: #fff; border: none; border-radius: var(--radius-full);
    font-size: 12px; font-weight: 600; cursor: pointer;
    display: inline-flex; align-items: center; gap: 5px;
    transition: var(--transition);
    box-shadow: 0 4px 14px var(--brand-soft-25);
}
.app-btn-auth:hover { transform: scale(1.04); box-shadow: 0 6px 20px var(--brand-soft-25); }
.app-btn-auth.logout {
    background: rgba(0,0,0,0.06); color: var(--ink);
    box-shadow: none;
}
.app-btn-auth.logout:hover { background: rgba(0,0,0,0.1); transform: none; }

.app-user-name {
    font-size: 12px; font-weight: 500; color: var(--brand);
    display: inline-flex; align-items: center; gap: 4px;
}

/* ============================================================
 * 通用容器
 * ============================================================ */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.app-container.wide { max-width: 1400px; }

/* ============================================================
 * 通用卡片
 * ============================================================ */
.app-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    transition: var(--transition);
}

/* ============================================================
 * 通用按钮
 * ============================================================ */
.app-btn {
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 13px; font-weight: 600;
    cursor: pointer; transition: var(--transition);
    display: inline-flex; align-items: center; gap: 5px;
    border: none; font-family: inherit;
    white-space: nowrap;
    text-decoration: none;
}
.app-btn.primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-light));
    color: #fff;
    box-shadow: 0 4px 12px var(--brand-soft-25);
}
.app-btn.primary:hover { transform: scale(1.03); }
.app-btn.secondary {
    background: rgba(0,0,0,0.04); color: var(--ink);
    border: 1px solid rgba(0,0,0,0.06);
}
.app-btn.secondary:hover { background: rgba(0,0,0,0.08); }
.app-btn.danger { background: var(--danger); color: #fff; }
.app-btn.danger:hover { background: #b91c1c; }
.app-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ============================================================
 * 通用表单
 * ============================================================ */
.app-form-group { margin-bottom: 16px; }
.app-form-group label {
    display: block; font-size: 13px; font-weight: 500;
    color: var(--ink-muted); margin-bottom: 6px;
}
.app-form-group label .req { color: var(--danger); }
.app-form-group input,
.app-form-group textarea,
.app-form-group select {
    width: 100%; padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px; outline: none;
    background: #fff; color: var(--ink);
    transition: var(--transition);
    resize: vertical;
}
.app-form-group input:focus,
.app-form-group textarea:focus,
.app-form-group select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 3px var(--brand-soft);
}

/* ============================================================
 * 徽章
 * ============================================================ */
.app-badge {
    padding: 2px 10px; border-radius: 10px;
    font-size: 11px; font-weight: 600;
    display: inline-block;
}
.app-badge.success { background: rgba(11,94,66,0.1); color: #0b5e42; }
.app-badge.danger { background: rgba(220,38,38,0.08); color: var(--danger); }
.app-badge.warning { background: rgba(217,119,6,0.1); color: #b45309; }
.app-badge.info { background: var(--info-bg); color: var(--info); }
.app-badge.muted { background: rgba(107,114,128,0.12); color: #4b5563; }

/* ============================================================
 * Toast 提示
 * ============================================================ */
.app-toast {
    position: fixed;
    left: 50%;
    bottom: calc(30px + env(safe-area-inset-bottom, 0px));
    transform: translateX(-50%) translateY(16px);
    background: rgba(26, 26, 46, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: #fff;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    z-index: 9999;
    max-width: 80vw;
    text-align: center;
    word-break: break-word;
}
.app-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================================
 * 通用 Modal
 * ============================================================ */
.app-modal-overlay {
    display: none;
    position: fixed; inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    align-items: center; justify-content: center;
    padding: 20px;
}
.app-modal-overlay.active { display: flex; }

.app-modal-panel {
    background: #fff;
    border-radius: var(--radius-lg);
    max-width: 520px; width: 100%;
    max-height: 90vh; overflow-y: auto;
    padding: 24px 28px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.15);
}
.app-modal-panel.wide { max-width: 700px; }
.app-modal-panel.narrow { max-width: 420px; }

.app-modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 14px; margin-bottom: 18px;
    border-bottom: 1px solid var(--border-light);
}
.app-modal-header h3 {
    font-size: 17px; font-weight: 700; color: var(--ink);
}
.app-modal-close {
    background: none; border: none;
    font-size: 22px; color: var(--ink-lighter);
    cursor: pointer; padding: 0;
    transition: var(--transition);
}
.app-modal-close:hover { color: var(--ink); }

.app-modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    padding-top: 16px; margin-top: 16px;
    border-top: 1px solid var(--border-light);
}

/* ============================================================
 * 空状态
 * ============================================================ */
.app-empty {
    text-align: center;
    padding: 60px 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    color: var(--ink-light);
}
.app-empty .big {
    font-size: 56px; display: block; margin-bottom: 12px;
}
.app-empty .title { font-size: 16px; color: var(--ink-muted); }
.app-empty .sub { font-size: 13px; color: var(--ink-lighter); margin-top: 4px; }

/* ============================================================
 * 加载中
 * ============================================================ */
.app-loading {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    min-height: 60vh; color: var(--ink-light); gap: 12px;
    padding: 60px 20px;
}
.app-loading .spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--brand);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
 * 手机端适配
 * ============================================================ */
@media (max-width: 768px) {
    .app-header { padding: 8px 12px; gap: 8px; min-height: 56px; }
    .app-logo { font-size: 16px; }
    .app-header-actions { gap: 6px; }
    .app-btn-icon { padding: 6px 10px; font-size: 11px; }
    .app-btn-icon .label-text { display: none; }
    .app-btn-auth { padding: 6px 12px; font-size: 11px; }
    .app-user-name { font-size: 11px; }
    .app-container { padding: 12px; }
    .app-modal-panel { padding: 20px 16px; }
}