/* ===========================================
   VIAGRA 銷售頁面 - 白色主題設計系統
   Template B - 白底 + 金色 Accent
   =========================================== */

/* ----------- CSS Variables ----------- */
:root {
    /* 主色調 - 白色主題 */
    --primary-dark: #1a1a1a;
    --primary-blue: #333333;
    --primary-gradient: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #f0f0f0 100%);

    /* 強調色 - 保持金色 */
    --accent-gold: #d4a800;
    --accent-orange: #cc8500;
    --accent-gradient: linear-gradient(90deg, #d4a800 0%, #cc8500 100%);

    /* 文字色 - 深色文字 */
    --text-primary: #1a1a1a;
    --text-secondary: #444444;
    --text-muted: #777777;

    /* 背景色 */
    --bg-card: rgba(0, 0, 0, 0.02);
    --bg-card-hover: rgba(0, 0, 0, 0.05);
    --border-subtle: rgba(0, 0, 0, 0.1);

    /* 狀態色 */
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;

    /* 間距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    /* 字型 */
    --font-sans: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', var(--font-sans);

    /* 圓角 */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    /* 陰影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px rgba(212, 168, 0, 0.3);

    /* 動畫 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ----------- Reset & Base ----------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background: var(--primary-gradient);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ----------- Typography ----------- */
h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.2rem, 3vw, 1.75rem);
    color: var(--accent-gold);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* ----------- Layout ----------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-dark {
    background: rgba(0, 0, 0, 0.03);
}

/* ----------- Buttons ----------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s infinite;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 50px rgba(212, 168, 0, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent-gold);
}

.btn-secondary:hover {
    background: rgba(212, 168, 0, 0.1);
}

/* ----------- Cards ----------- */
.card {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover {
    background: #ffffff;
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* ----------- Forms ----------- */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: 1rem;
    color: var(--text-primary);
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(212, 168, 0, 0.2);
}

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

/* ----------- Radio & Checkbox ----------- */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: #ffffff;
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-option:hover {
    border-color: var(--accent-gold);
}

.radio-option.selected {
    border-color: var(--accent-gold);
    background: rgba(212, 168, 0, 0.08);
}

/* ----------- Animations ----------- */
@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(212, 168, 0, 0.3);
    }

    50% {
        box-shadow: 0 0 40px rgba(212, 168, 0, 0.6);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {

    0%,
    100% {
        text-shadow: 0 0 10px rgba(212, 168, 0, 0.5);
    }

    50% {
        text-shadow: 0 0 30px rgba(212, 168, 0, 0.8);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-glow {
    animation: glow 2s infinite;
}

/* ----------- Utilities ----------- */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--accent-gold);
}

.text-muted {
    color: var(--text-muted);
}

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

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

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

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

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

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

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

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

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

/* ----------- Page Specific: Hero ----------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(212, 168, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(212, 168, 0, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(212, 168, 0, 0.12);
    border: 1px solid var(--accent-gold);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-secondary);
}

.hero-cta {
    font-size: 1.25rem;
    padding: var(--spacing-md) var(--spacing-xl);
}

.hero-trust {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Hero Banner */
.hero-banner {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
}

.banner-image {
    max-width: 100%;
    width: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ----------- Page Specific: Pain ----------- */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

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

.pain-emoji {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.pain-image-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.pain-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pain-conclusion {
    font-size: 1.1rem;
    margin-top: var(--spacing-xl);
}

/* ----------- Page Specific: Solution ----------- */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.solution-card h3 {
    margin-bottom: var(--spacing-md);
}

.speed-compare {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.speed-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.speed-bar .bar {
    height: 8px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    flex-grow: 1;
}

.speed-bar.traditional .bar {
    background: var(--text-muted);
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-list li {
    color: var(--text-secondary);
}

/* ----------- Page Specific: How To ----------- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    color: #ffffff;
    border-radius: 50%;
}

/* How To Images */
.howto-images {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.howto-image {
    max-width: 100%;
    width: 100%;
    max-width: 600px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* ----------- Page Specific: Testimonials ----------- */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.testimonial-avatar {
    font-size: 2.5rem;
}

.testimonial-content {
    font-style: italic;
    color: var(--text-secondary);
}

/* ----------- Page Specific: Pricing ----------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
    background: #ffffff;
}

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

.pricing-card.selected {
    border-color: var(--success);
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-gradient);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.pricing-desc {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.pricing-amount {
    margin-bottom: var(--spacing-md);
}

.pricing-amount .currency {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-amount .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.pricing-features li {
    color: var(--text-secondary);
}

.countdown-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--error);
    border-radius: var(--radius-full);
    color: var(--error);
}

/* ----------- Page Specific: Checkout ----------- */
.checkout-box {
    max-width: 600px;
    margin: 0 auto;
    background: #ffffff;
}

.selected-plan {
    padding: var(--spacing-sm);
    background: #f8f9fa;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
}

.selected-plan.has-selection {
    background: rgba(212, 168, 0, 0.1);
    border: 1px solid var(--accent-gold);
    color: var(--text-primary);
}

.store-results {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.store-option {
    cursor: pointer;
}

.checkout-trust p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.submit-btn {
    width: 100%;
    font-size: 1.25rem;
    padding: var(--spacing-md);
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    animation: none;
}

/* ----------- Page Specific: Footer ----------- */
.footer {
    padding: var(--spacing-lg) 0;
    background: #f8f9fa;
}

/* ----------- Success Page ----------- */
.success-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

/* ----------- Responsive ----------- */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .btn {
        width: 100%;
        padding: var(--spacing-md);
    }

    .pricing-card.featured {
        transform: none;
    }

    .solution-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
}

/* ========== 固定側邊欄 LINE@ 貼紙 ========== */
.line-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.line-sidebar-text {
    display: block;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 15px 10px;
    background: linear-gradient(180deg, #06c755 0%, #04a847 100%);
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 10px 0 0 10px;
    box-shadow: -3px 0 15px rgba(6, 199, 85, 0.4);
    letter-spacing: 2px;
}

.line-sidebar:hover .line-sidebar-text {
    padding-right: 15px;
    box-shadow: -5px 0 25px rgba(6, 199, 85, 0.6);
}

/* ========== 固定底部按鈕欄 ========== */
.bottom-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    z-index: 999;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-subtle);
    padding: 10px;
    gap: 10px;
    transition: transform var(--transition-normal);
}

.bottom-action-bar.hidden {
    transform: translateY(100%);
}

.action-btn {
    flex: 1;
    padding: 15px 20px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-btn {
    background: #f3f4f6;
    color: var(--text-primary);
}

.cart-btn:hover {
    background: #e5e7eb;
}

.buy-btn {
    background: var(--accent-gradient);
    color: #ffffff;
}

.buy-btn:hover {
    transform: scale(1.02);
}

/* ========== LINE@ 彈窗 ========== */
.line-popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.line-popup {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.popup-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    background: #f3f4f6;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.popup-logo {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.popup-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.popup-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.popup-benefits {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.popup-benefits p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.popup-btn {
    display: block;
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(180deg, #06c755 0%, #04a847 100%);
    color: white;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-md);
    line-height: 1.4;
}

.popup-later {
    margin-top: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
}

/* ========== 訂單確認彈窗 ========== */
.order-confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.order-confirm-popup {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.confirm-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.confirm-details {
    background: #f8f9fa;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.confirm-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

.confirm-row.total {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.confirm-divider {
    border: none;
    border-top: 1px solid var(--border-subtle);
    margin: var(--spacing-sm) 0;
}

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

.confirm-buttons .btn {
    flex: 1;
}

/* ========== 門市搜尋載入動畫 ========== */
.search-loading {
    text-align: center;
    padding: 30px 20px;
}

.search-loading p {
    color: var(--text-secondary);
    margin: 0;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #e0e0e0;
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

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

/* ========== 已選門市視覺強化 ========== */
.store-option {
    position: relative;
    transition: all var(--transition-fast);
}

.store-option.selected {
    border: 2px solid var(--accent-gold) !important;
    background: linear-gradient(135deg, #fffbf0 0%, #fff9e6 100%) !important;
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.store-option.selected::after {
    content: '✓ 已選擇';
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-gold);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}