/*
 * EC Shop City - 主樣式表
 * 版本: 2.0
 * 更新日期: 2026-02-06
 * 網站: ecshopcity.com
 */

/* ========================================
   CSS 變數定義
======================================== */
:root {
    /* 品牌色彩 */
    --color-primary: #5CC5FA;
    --color-secondary: #3E99CA;
    --color-white: #FFFFFF;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg-light: #F5F5F5;
    --color-bg-dark: #1a1a1a;
    --color-border: #e0e0e0;

    /* 漸變 */
    --gradient-primary: linear-gradient(135deg, #5CC5FA 0%, #3E99CA 100%);
    --gradient-hover: linear-gradient(135deg, #3E99CA 0%, #2d7aa3 100%);
    --gradient-light: linear-gradient(135deg, rgba(92,197,250,0.1) 0%, rgba(62,153,202,0.1) 100%);

    /* 字體 */
    --font-primary: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;

    /* 間距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-xxl: 100px;

    /* 圓角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50px;

    /* 陰影 */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-primary: 0 4px 20px rgba(92,197,250,0.3);

    /* 過渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 最大寬度 */
    --max-width: 1400px;
    --content-width: 1200px;
}

/* ========================================
   重置樣式
======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

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

/* ========================================
   容器
======================================== */
.container {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: var(--max-width);
}

.container-narrow {
    max-width: 900px;
}

/* ========================================
   Header 頭部
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    transition: var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-secondary);
}

/* 主導航 */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

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

/* 下拉菜單 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-normal);
    padding: var(--spacing-xs) 0;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 12px 20px;
    font-size: 14px;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.dropdown-link:hover {
    background: var(--gradient-light);
    color: var(--color-primary);
}

/* Header CTA 按鈕 */
.header-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
}

/* 漢堡菜單按鈕 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.hamburger span:nth-child(1) {
    transform: translateY(-6px);
}

.hamburger span:nth-child(3) {
    transform: translateY(6px);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg);
}

/* ========================================
   按鈕樣式
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(92,197,250,0.4);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-secondary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
    border-color: transparent;
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ========================================
   Hero Banner 區域
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--gradient-primary);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 60px 60px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    margin-top: var(--spacing-xs);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ========================================
   區塊通用樣式
======================================== */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-light {
    background: var(--color-bg-light);
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-white);
}

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(92,197,250,0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.section-dark .section-title {
    color: var(--color-white);
}

.section-desc {
    font-size: 17px;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ========================================
   標題樣式
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 28px; }
h4 { font-size: 22px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }

/* ========================================
   卡片樣式
======================================== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.card-icon svg,
.card-icon img {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* 服務卡片 */
.service-card {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.service-card:hover {
    border-color: var(--color-primary);
}

.service-card .card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
}

/* 價格卡片 */
.price-card {
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.price-card.featured::before {
    content: '推薦';
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 5px 40px;
    font-size: 12px;
    font-weight: 600;
    transform: rotate(45deg);
}

.price-name {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.price-amount span {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text-light);
}

.price-features {
    margin: var(--spacing-md) 0;
    text-align: left;
}

.price-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 14px;
}

.price-features li:last-child {
    border-bottom: none;
}

/* ========================================
   網格系統
======================================== */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.grid-gap-lg { gap: var(--spacing-lg); }
.grid-gap-xl { gap: var(--spacing-xl); }

/* ========================================
   Flex 工具
======================================== */
.flex {
    display: flex;
}

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

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

.flex-wrap {
    flex-wrap: wrap;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ========================================
   客戶展示
======================================== */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
    min-height: 100px;
}

.client-logo:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.client-logo img {
    max-height: 50px;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition-normal);
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ========================================
   數據統計
======================================== */
.stats-section {
    background: var(--gradient-primary);
    padding: var(--spacing-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stats-item {
    color: var(--color-white);
}

.stats-number {
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stats-label {
    font-size: 16px;
    opacity: 0.9;
}

/* ========================================
   表單樣式
======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(92,197,250,0.2);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   Footer 底部
======================================== */
.footer {
    background: var(--color-bg-dark);
    color: var(--color-white);
    padding-top: var(--spacing-xxl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 350px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo img {
    height: 40px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    transition: var(--transition-fast);
}

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

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.footer-contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: var(--transition-normal);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: var(--spacing-md) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-bottom-links a {
    color: rgba(255,255,255,0.5);
}

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

/* ========================================
   WhatsApp 浮動按鈕
======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    transition: var(--transition-normal);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37,211,102,0.5);
}

.whatsapp-btn svg {
    width: 32px;
    height: 32px;
    fill: var(--color-white);
}

/* ========================================
   麵包屑導航
======================================== */
.breadcrumb {
    padding: var(--spacing-sm) 0;
    background: var(--color-bg-light);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-list li::after {
    content: '/';
    color: var(--color-text-light);
    margin-left: var(--spacing-xs);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: var(--color-text-light);
}

.breadcrumb-list a:hover {
    color: var(--color-primary);
}

.breadcrumb-list .current {
    color: var(--color-primary);
    font-weight: 500;
}

/* ========================================
   頁面 Banner
======================================== */
.page-banner {
    background: var(--gradient-primary);
    padding: 140px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 60px 60px;
}

.page-banner-content {
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   CTA 區塊
======================================== */
.cta-section {
    background: var(--gradient-primary);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ========================================
   相關服務推薦
======================================== */
.related-services {
    background: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.related-title {
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   常見問題 FAQ
======================================== */
.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    transition: var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    max-height: 500px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ========================================
   表格樣式
======================================== */
.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background: var(--color-bg-light);
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text);
}

.table td {
    font-size: 14px;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background: rgba(92,197,250,0.05);
}

/* ========================================
   工具類
======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-light { color: var(--color-text-light); }
.text-white { color: var(--color-white); }

.bg-light { background: var(--color-bg-light); }
.bg-dark { background: var(--color-bg-dark); }
.bg-gradient { background: var(--gradient-primary); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.pt-lg { padding-top: var(--spacing-lg); }
.pb-lg { padding-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ========================================
   內容區域
======================================== */
.content-area {
    padding: var(--spacing-xl) 0;
}

.content-area h2 {
    font-size: 28px;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.content-area h3 {
    font-size: 22px;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.content-area p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.content-area ul,
.content-area ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.content-area ul {
    list-style: disc;
}

.content-area ol {
    list-style: decimal;
}

.content-area li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

/* ========================================
   特色區塊
======================================== */
.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.feature-check {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-check svg {
    width: 14px;
    height: 14px;
    color: var(--color-white);
}

.feature-text {
    font-size: 15px;
    line-height: 1.6;
}

/* ========================================
   標籤/徽章
======================================== */
.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: rgba(92,197,250,0.15);
    color: var(--color-secondary);
}

.badge-success {
    background: rgba(46,204,113,0.15);
    color: #27ae60;
}

.badge-warning {
    background: rgba(241,196,15,0.15);
    color: #f39c12;
}