/* ========================================
   本地生活圈 - 抖音风格UI样式
   Author: MiniMax Agent
   Version: 2.0
======================================== */

/* CSS Variables */
:root {
    --primary: #FE2C55;
    --primary-light: #FF5C8A;
    --primary-dark: #E61E45;
    --secondary: #25F4EE;
    --text-main: #161823;
    --text-sub: #8A8B8D;
    --text-light: #BFBFBF;
    --bg-body: #F2F3F5;
    --bg-white: #FFFFFF;
    --bg-card: #FFFFFF;
    --border-color: #EBEBEB;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --safe-bottom: env(safe-area-inset-bottom);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    padding-bottom: calc(60px + var(--safe-bottom));
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea {
    font-family: inherit;
    border: none;
    outline: none;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}
::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 2px;
}

/* ====================
   Header
==================== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.04);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.location-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    max-width: 35%;
    flex-shrink: 0;
}

.location-trigger .city-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80px;
}

.location-trigger .arrow-icon {
    font-size: 10px;
    color: var(--text-sub);
    transition: transform 0.3s;
}

.location-trigger.active .arrow-icon {
    transform: rotate(180deg);
}

.search-box {
    flex: 1;
    height: 36px;
    background: #F1F1F2;
    border-radius: 18px;
    display: flex;
    align-items: center;
    padding: 0 14px;
    gap: 8px;
}

.search-box .search-icon {
    font-size: 16px;
    color: var(--text-sub);
}

.search-box input {
    flex: 1;
    height: 100%;
    background: transparent;
    font-size: 14px;
    color: var(--text-main);
}

.search-box input::placeholder {
    color: var(--text-light);
}

.search-box .search-btn {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    padding: 4px 8px;
}

/* ====================
   Banner
==================== */
.banner-section {
    padding: 12px 16px;
}

.banner-swiper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--primary) 0%, #FF6B8A 100%);
}

.banner-swiper .banner-item {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px;
    color: white;
    opacity: 0;
    transition: opacity 0.5s;
}

.banner-swiper .banner-item.active {
    opacity: 1;
}

.banner-swiper .banner-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.banner-swiper .banner-subtitle {
    font-size: 14px;
    opacity: 0.9;
}

.banner-dots {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    gap: 6px;
}

.banner-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    transition: all 0.3s;
}

.banner-dot.active {
    width: 18px;
    border-radius: 3px;
    background: white;
}

/* ====================
   Category Grid
==================== */
.category-section {
    padding: 16px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px 0;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: transform 0.2s;
}

.category-item:active {
    transform: scale(0.95);
}

.category-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: var(--shadow-sm);
}

.category-icon.food { background: linear-gradient(135deg, #FF9500, #FFAA33); }
.category-icon.movie { background: linear-gradient(135deg, #F44, #FF6B6B); }
.category-icon.hotel { background: linear-gradient(135deg, #4A90FF, #6BA3FF); }
.category-icon.beauty { background: linear-gradient(135deg, #FF69B4, #FF8DC7); }
.category-icon.entertainment { background: linear-gradient(135deg, #9B59B6, #B07CC6); }
.category-icon.moving { background: linear-gradient(135deg, #2ECC71, #58D68D); }
.category-icon.cleaning { background: linear-gradient(135deg, #1ABC9C, #48C9B0); }
.category-icon.job { background: linear-gradient(135deg, #3498DB, #5DADE2); }
.category-icon.house { background: linear-gradient(135deg, #E67E22, #F39C12); }
.category-icon.more { background: linear-gradient(135deg, #95A5A6, #BDC3C7); }

.category-name {
    font-size: 12px;
    color: var(--text-main);
    font-weight: 500;
}

/* ====================
   Section Title
==================== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 16px 12px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    width: 3px;
    height: 16px;
    background: var(--primary);
    border-radius: 2px;
}

.section-more {
    font-size: 13px;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ====================
   Flash Sale
==================== */
.flash-sale {
    margin: 0 16px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 14px;
    box-shadow: var(--shadow-sm);
}

.flash-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.flash-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.flash-title .label {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

.flash-title .countdown {
    font-size: 12px;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 4px;
}

.flash-title .countdown span {
    background: var(--primary);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 11px;
}

.flash-scroll {
    display: flex;
    overflow-x: auto;
    gap: 12px;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.flash-scroll::-webkit-scrollbar {
    display: none;
}

.flash-item {
    min-width: 100px;
    text-align: center;
    cursor: pointer;
}

.flash-item:active {
    opacity: 0.8;
}

.flash-img {
    width: 90px;
    height: 90px;
    border-radius: var(--radius-sm);
    background: #f5f5f5;
    margin-bottom: 8px;
    overflow: hidden;
}

.flash-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.flash-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

.flash-price .unit {
    font-size: 11px;
    font-weight: 400;
}

.flash-original {
    font-size: 11px;
    color: var(--text-light);
    text-decoration: line-through;
}

/* ====================
   Merchant Feed
==================== */
.merchant-feed {
    padding: 0 16px;
}

.feed-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.merchant-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.merchant-card:active {
    transform: scale(0.98);
    box-shadow: none;
}

.card-cover {
    width: 100%;
    height: 140px;
    background: #f5f5f5;
    position: relative;
}

.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0,0,0,0.6);
    color: white;
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
}

.card-info {
    padding: 12px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
    height: 2.8em;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.card-price .unit {
    font-size: 12px;
    font-weight: 400;
}

.card-sales {
    font-size: 11px;
    color: var(--text-sub);
}

.card-location {
    font-size: 12px;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ====================
   Bottom Navigation
==================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0 calc(8px + var(--safe-bottom));
    z-index: 1000;
    box-shadow: 0 -2px 12px rgba(0,0,0,0.04);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--text-sub);
    font-size: 10px;
    cursor: pointer;
    transition: color 0.2s;
    flex: 1;
    padding: 4px 0;
}

.nav-item .nav-icon {
    font-size: 22px;
    position: relative;
}

.nav-item.active {
    color: var(--text-main);
}

.nav-item .badge {
    position: absolute;
    top: -4px;
    right: -8px;
    background: var(--primary);
    color: white;
    font-size: 9px;
    min-width: 14px;
    height: 14px;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* ====================
   Modal - Address Selector
==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 100%;
    max-height: 80vh;
    background: var(--bg-white);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-title {
    font-size: 17px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-sub);
    border-radius: 50%;
    transition: background 0.2s;
}

.modal-close:active {
    background: var(--bg-body);
}

.auto-locate {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--bg-body);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.auto-locate:active {
    background: #E8E8E8;
}

.auto-locate .icon {
    font-size: 18px;
    animation: none;
}

.auto-locate.loading .icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    flex-shrink: 0;
}

.breadcrumb {
    padding: 12px 8px;
    font-size: 14px;
    color: var(--text-sub);
    white-space: nowrap;
    position: relative;
    cursor: pointer;
}

.breadcrumb::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.2s;
}

.breadcrumb.active {
    color: var(--primary);
    font-weight: 600;
}

.breadcrumb.active::after {
    width: 20px;
}

/* Address List */
.address-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.address-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    font-size: 15px;
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.2s;
}

.address-item:active {
    background: var(--bg-body);
}

.address-item.selected {
    color: var(--primary);
    font-weight: 600;
}

.address-item .check-icon {
    display: none;
    color: var(--primary);
    font-size: 18px;
}

.address-item.selected .check-icon {
    display: block;
}

/* ====================
   Login Page
==================== */
.login-page {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    flex-direction: column;
    padding: 60px 24px 40px;
}

.login-logo {
    text-align: center;
    color: white;
    margin-bottom: 40px;
}

.login-logo .logo-icon {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 20px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.login-logo .logo-text {
    font-size: 24px;
    font-weight: 700;
}

.login-form {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.form-item {
    display: flex;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
}

.form-item:last-child {
    border-bottom: none;
}

.form-item .icon {
    font-size: 20px;
    color: var(--text-sub);
    width: 40px;
    flex-shrink: 0;
}

.form-item input {
    flex: 1;
    font-size: 15px;
    color: var(--text-main);
    background: transparent;
}

.form-item input::placeholder {
    color: var(--text-light);
}

.get-code {
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    white-space: nowrap;
    padding: 6px 12px;
    border: 1px solid var(--primary);
    border-radius: 16px;
    transition: all 0.2s;
}

.get-code:active {
    background: var(--primary);
    color: white;
}

.get-code:disabled {
    opacity: 0.5;
    border-color: var(--text-light);
    color: var(--text-light);
}

.login-btn {
    width: 100%;
    height: 48px;
    background: var(--primary);
    color: white;
    font-size: 16px;
    font-weight: 600;
    border-radius: 24px;
    margin-top: 24px;
    transition: background 0.2s;
}

.login-btn:active {
    background: var(--primary-dark);
}

.login-tip {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255,255,255,0.8);
}

/* ====================
   User Center
==================== */
.user-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 40px 20px 60px;
    color: white;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.user-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.user-level {
    font-size: 12px;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 6px;
}

.user-stats {
    display: flex;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 24px;
}

.stat-item {
    flex: 1;
    text-align: center;
    cursor: pointer;
}

.stat-item:active {
    opacity: 0.8;
}

.stat-num {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    opacity: 0.9;
}

.user-menu {
    background: var(--bg-white);
    margin: -40px 16px 16px;
    border-radius: var(--radius-lg);
    padding: 8px 0;
    box-shadow: var(--shadow-md);
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    cursor: pointer;
    transition: background 0.2s;
}

.menu-item:active {
    background: var(--bg-body);
}

.menu-item .icon {
    width: 40px;
    font-size: 20px;
    color: var(--primary);
}

.menu-item .text {
    flex: 1;
    font-size: 15px;
    color: var(--text-main);
}

.menu-item .arrow {
    font-size: 14px;
    color: var(--text-light);
}

/* ====================
   Utilities
==================== */
.text-primary { color: var(--primary); }
.text-sub { color: var(--text-sub); }
.text-light { color: var(--text-light); }

.bg-white { background: var(--bg-white); }
.bg-body { background: var(--bg-body); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.p-12 { padding: 12px; }
.p-16 { padding: 16px; }
.m-12 { margin: 12px; }
.m-16 { margin: 16px; }

.hidden { display: none !important; }

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-sub);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-sub);
}

.empty-state .icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state .text {
    font-size: 14px;
}