/* ===========================================
   SMSBower 克隆站 - 主样式表
   路径: /assets/css/style.css
   =========================================== */

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4a6cf7;
    --primary-dark: #3a56d7;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --white: #ffffff;
    --gray: #6c757d;
    --gray-light: #e9ecef;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--light);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ===========================================
   导航栏
   =========================================== */
.navbar {
    background: var(--white);
    box-shadow: var(--box-shadow);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.navbar-brand .logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary);
}

.navbar-brand .logo i {
    margin-right: 8px;
}

.navbar-menu {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--dark);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    background: var(--primary);
    color: var(--white);
}

.navbar-end {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 用户菜单 */
.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.balance-badge {
    background: var(--success);
    color: var(--white);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
}

.dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: 1px solid var(--gray-light);
    padding: 8px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    min-width: 200px;
    display: none;
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 10px 15px;
    color: var(--dark);
    border-bottom: 1px solid var(--gray-light);
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: var(--light);
}

/* ===========================================
   按钮
   =========================================== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-success { background: var(--success); color: var(--white); }
.btn-danger { background: var(--danger); color: var(--white); }
.btn-warning { background: var(--warning); color: var(--dark); }
.btn-info { background: var(--info); color: var(--white); }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { display: block; width: 100%; }

/* ===========================================
   Hero Section
   =========================================== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-title .highlight {
    color: var(--warning);
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-card {
    background: rgba(255,255,255,0.1);
    padding: 20px;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-card i {
    font-size: 24px;
    margin-bottom: 10px;
    display: block;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    display: block;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

/* ===========================================
   Section 通用
   =========================================== */
section {
    padding: 60px 0;
}

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 15px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 40px;
}

/* ===========================================
   服务网格
   =========================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 10px;
}

.service-name {
    font-weight: 600;
    margin-bottom: 5px;
}

/* ===========================================
   Steps (How it works)
   =========================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.step-card {
    text-align: center;
    padding: 30px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

.step-icon {
    font-size: 48px;
    color: var(--primary);
    margin: 20px 0;
}

/* ===========================================
   定价卡片
   =========================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--danger);
    color: var(--white);
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 14px;
}

.pricing-price {
    margin: 20px 0;
}

.pricing-price .price {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary);
}

.pricing-features {
    list-style: none;
    margin: 20px 0;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-light);
}

/* ===========================================
   FAQ
   =========================================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 10px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.faq-question:hover {
    background: var(--light);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 20px;
}

.faq-answer p {
    padding: 20px 0;
}

/* ===========================================
   卡片（通用）
   =========================================== */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body {
    padding: 20px;
}

/* ===========================================
   表单
   =========================================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-size: 14px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

/* ===========================================
   徽章
   =========================================== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success { background: var(--success); color: var(--white); }
.badge-danger { background: var(--danger); color: var(--white); }
.badge-warning { background: var(--warning); color: var(--dark); }
.badge-info { background: var(--info); color: var(--white); }

/* ===========================================
   激活记录卡片
   =========================================== */
.activation-card {
    background: var(--light);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    border-left: 4px solid var(--primary);
}

.activation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.activation-email {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.activation-meta {
    display: flex;
    gap: 20px;
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.verification-codes {
    background: var(--white);
    padding: 15px;
    border-radius: var(--border-radius);
    margin: 10px 0;
}

.code-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--success);
    color: var(--white);
    border-radius: var(--border-radius);
    margin: 5px 0;
}

.code-value {
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
}

.code-time {
    margin-left: auto;
    font-size: 12px;
    opacity: 0.8;
}

.activation-actions {
    display: flex;
    gap: 10px;
}

/* ===========================================
   快捷操作卡片
   =========================================== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.action-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.action-card:hover {
    transform: translateY(-5px);
}

.action-card i {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.action-card.vinted i { color: #ff3f6c; }
.action-card.facebook i { color: #1877f2; }
.action-card.google i { color: #ea4335; }

/* ===========================================
   认证页面（登录/注册）
   =========================================== */
.auth-section {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--light) 0%, var(--gray-light) 100%);
}

.auth-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 15px;
    display: block;
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-light);
}

/* ===========================================
   Flash 消息
   =========================================== */
.flash-message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: slideIn 0.3s ease;
}

.flash-message.flash-success { background: var(--success); color: var(--white); }
.flash-message.flash-error { background: var(--danger); color: var(--white); }
.flash-message.flash-info { background: var(--info); color: var(--white); }

.flash-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 20px;
    cursor: pointer;
    opacity: 0.8;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===========================================
   Toast 通知
   =========================================== */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    z-index: 9999;
    animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s;
}

.toast-success { background: var(--success); color: var(--white); }
.toast-error { background: var(--danger); color: var(--white); }
.toast-info { background: var(--info); color: var(--white); }

@keyframes toastIn {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes toastOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* ===========================================
   页脚
   =========================================== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-stats {
    display: flex;
    gap: 20px;
}

.stat-item {
    text-align: center;
}

.stat-item .stat-number {
    font-size: 24px;
    font-weight: bold;
    display: block;
}

.stat-item .stat-label {
    font-size: 12px;
    opacity: 0.8;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-tag {
    background: rgba(255,255,255,0.1);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    color: var(--white);
    font-size: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    opacity: 0.8;
}

/* ===========================================
   响应式
   =========================================== */
@media (max-width: 768px) {
    .hero-title { font-size: 32px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .quick-actions { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; }
}

/* 工具类 */
.text-center { text-align: center; }
.mt-2 { margin-top: 20px; }
.mt-4 { margin-top: 40px; }
.mb-2 { margin-bottom: 20px; }
.mb-4 { margin-bottom: 40px; }