/* ===== CSS Variables ===== */
:root {
    --primary: #6B8E7B;
    --primary-dark: #5A7A6A;
    --primary-light: #8FB09F;
    --secondary: #E8D5C4;
    --accent: #C9A87C;
    --text: #3D3D3D;
    --text-light: #6B6B6B;
    --text-lighter: #8B8B8B;
    --bg: #FAFAF8;
    --bg-alt: #F5F3F0;
    --white: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.08);
    --shadow-hover: rgba(0, 0, 0, 0.12);
    --border: #E5E5E5;
    --success: #7CB97C;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --font-sans: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: all 0.3s ease;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
}

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

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

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

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

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

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

ul, ol {
    list-style: none;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

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

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a,
.nav-link {
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

.nav a::after,
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav a:hover::after,
.nav-link:hover::after,
.nav a.active::after,
.nav-link.active::after {
    width: 100%;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
    background: var(--bg-alt);
    padding: 12px 0;
    margin-top: 72px;
    border-bottom: 1px solid var(--border);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '›';
    color: var(--text-lighter);
}

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

.breadcrumb-list a:hover {
    text-decoration: underline;
}

/* ===== Hero Section ===== */
.hero {
    padding: 80px 0;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 48px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    margin-bottom: 12px;
}

.hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

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

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

.hero-visual {
    text-align: center;
}

.hero-icon {
    font-size: 120px;
    display: block;
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-quote {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    font-style: italic;
}

/* ===== Intro Section ===== */
.intro-section {
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-content h2 {
    font-size: 28px;
    color: var(--primary-dark);
    margin-bottom: 24px;
    text-align: center;
}

.intro-text p {
    font-size: 16px;
    color: var(--text);
    line-height: 1.9;
    margin-bottom: 16px;
}

.intro-text p:last-child {
    margin-bottom: 0;
}

/* ===== Sections ===== */
.section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text);
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

/* ===== About Section ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.about-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--shadow-hover);
}

.about-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.about-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.about-card p {
    font-size: 15px;
    color: var(--text-light);
}

/* ===== Services Section ===== */
.services-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    background: var(--white);
    border: 2px solid var(--border);
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow-hover);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.service-icon {
    font-size: 32px;
}

.service-card h3 {
    font-size: 18px;
    color: var(--text);
}

.service-tag {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--secondary);
    color: var(--accent);
}

.service-tag.recommended {
    background: var(--primary-light);
    color: var(--white);
}

.service-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-features li {
    font-size: 14px;
    color: var(--text);
}

/* ===== Tool Container ===== */
.tool-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.tool-title {
    font-size: 20px;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.tool-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

/* ===== Checklist Section ===== */
.checklist-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 4px 20px var(--shadow);
}

.checklist-progress {
    margin-bottom: 32px;
    text-align: center;
}

.progress-bar {
    height: 8px;
    background: var(--bg-alt);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}

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

.checklist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.checklist-category h3,
.checklist-category h4 {
    font-size: 16px;
    color: var(--primary-dark);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--bg-alt);
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    cursor: pointer;
    transition: var(--transition);
}

.checklist-item:hover {
    background: var(--bg);
    margin: 0 -12px;
    padding: 12px;
    border-radius: var(--radius-sm);
}

.checklist-checkbox {
    display: none;
}

.checkmark {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border: 2px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.checkmark::after {
    content: '✓';
    font-size: 14px;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
}

.checklist-checkbox:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checklist-checkbox:checked + .checkmark::after {
    opacity: 1;
}

.checklist-text {
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
}

.checklist-result {
    margin-top: 32px;
    padding: 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    text-align: center;
    display: none;
}

.checklist-result.show {
    display: block;
    animation: fadeIn 0.4s ease;
}

.result-text {
    font-size: 15px;
    color: var(--text);
}

/* ===== Cost Section ===== */
.cost-calculator {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 4px 20px var(--shadow);
}

.calculator-controls {
    margin-bottom: 32px;
}

.control-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
}

.size-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.size-btn {
    padding: 16px 24px;
    border-radius: var(--radius);
    background: var(--bg-alt);
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
    min-width: 100px;
}

.size-btn span {
    display: block;
    font-size: 12px;
    font-weight: 400;
    color: var(--text-light);
    margin-top: 4px;
}

.size-btn:hover {
    border-color: var(--primary-light);
}

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

.size-btn.active span {
    color: rgba(255, 255, 255, 0.8);
}

.cost-table {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.cost-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.cost-row.table-header {
    background: var(--primary);
}

.cost-row.table-header .cost-cell {
    color: var(--white);
    font-weight: 600;
}

.cost-row:not(.table-header):nth-child(even) {
    background: var(--bg-alt);
}

.cost-cell {
    padding: 16px 24px;
    font-size: 15px;
}

.cost-value {
    font-weight: 600;
    color: var(--primary-dark);
}

.cost-note {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-lighter);
    text-align: center;
}

/* ===== User Guide Section ===== */
.user-guide-content {
    max-width: 900px;
    margin: 0 auto;
}

.guide-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

.guide-item {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow);
}

.guide-item h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 16px;
}

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

.guide-faq h3 {
    font-size: 20px;
    color: var(--text);
    margin-bottom: 24px;
    text-align: center;
}

.guide-faq-item {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    box-shadow: 0 2px 10px var(--shadow);
}

.guide-faq-item h4 {
    font-size: 16px;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.guide-faq-item p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== Tips Section ===== */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tip-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow);
    position: relative;
    transition: var(--transition);
}

.tip-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow-hover);
}

.tip-number {
    position: absolute;
    top: -15px;
    left: 24px;
    width: 36px;
    height: 36px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
}

.tip-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    margin-top: 8px;
    color: var(--text);
}

.tip-card p {
    font-size: 14px;
    color: var(--text-light);
}

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

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: var(--transition);
}

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

.faq-icon {
    font-size: 24px;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Articles Section ===== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.article-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--shadow-hover);
}

.article-image {
    height: 160px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
}

.article-content {
    padding: 24px;
}

.article-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--secondary);
    color: var(--accent);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.article-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--text);
}

.article-card h3 a:hover {
    color: var(--primary);
}

.article-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.6;
}

.article-date {
    font-size: 13px;
    color: var(--text-lighter);
}

.articles-cta {
    text-align: center;
}

/* ===== SEO Section ===== */
.seo-section {
    background: var(--white);
    border-top: 1px solid var(--border);
}

.seo-content {
    max-width: 800px;
    margin: 0 auto;
}

.seo-content p {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.seo-content p:last-child {
    margin-bottom: 0;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-legal h4,
.footer-info h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links a,
.footer-legal a {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    padding: 6px 0;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-legal a:hover {
    color: var(--white);
    padding-left: 8px;
}

.footer-info p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

.footer-disclaimer {
    font-size: 12px !important;
    color: rgba(255, 255, 255, 0.4) !important;
}

/* ===== Page Styles ===== */
.page-hero {
    padding: 60px 0;
    background: var(--gradient);
    text-align: center;
}

.page-hero h1 {
    font-size: 36px;
    color: var(--white);
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

.page-content {
    padding: 60px 0;
}

.page-content .container {
    max-width: 800px;
}

.page-content h2 {
    font-size: 24px;
    color: var(--text);
    margin-top: 40px;
    margin-bottom: 16px;
}

.page-content h2:first-child {
    margin-top: 0;
}

.page-content h3 {
    font-size: 20px;
    color: var(--text);
    margin-top: 32px;
    margin-bottom: 12px;
}

.page-content p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.page-content ul,
.page-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.page-content li {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 8px;
    line-height: 1.7;
    list-style: disc;
}

.page-content ol li {
    list-style: decimal;
}

.page-content a {
    color: var(--primary);
    text-decoration: underline;
}

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

.last-updated {
    font-size: 14px;
    color: var(--text-lighter);
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ===== Contact Form ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info h2 {
    font-size: 24px;
    color: var(--text);
    margin-bottom: 24px;
}

.contact-info p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    font-size: 24px;
}

.contact-item h3 {
    font-size: 16px;
    color: var(--text);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 0;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow);
}

.contact-form h2 {
    font-size: 24px;
    color: var(--text);
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

.form-submit {
    width: 100%;
    padding: 16px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(107, 142, 123, 0.3);
}

/* ===== Blog Styles ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--shadow-hover);
}

.blog-card-image {
    height: 200px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 72px;
}

.blog-card-content {
    padding: 32px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.blog-card-category {
    padding: 4px 12px;
    background: var(--secondary);
    color: var(--accent);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.blog-card-date {
    font-size: 13px;
    color: var(--text-lighter);
}

.blog-card h2 {
    font-size: 22px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.blog-card h2 a {
    color: var(--text);
}

.blog-card h2 a:hover {
    color: var(--primary);
}

.blog-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 15px;
}

.blog-card-link:hover {
    gap: 12px;
}

/* Blog Post Styles */
.blog-post {
    padding: 60px 0;
}

.blog-post .container {
    max-width: 800px;
}

.blog-post-header {
    margin-bottom: 40px;
}

.blog-post-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.blog-post-title {
    font-size: 36px;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 24px;
}

.blog-post-intro {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.blog-post-content h2 {
    font-size: 26px;
    color: var(--text);
    margin-top: 48px;
    margin-bottom: 20px;
}

.blog-post-content h3 {
    font-size: 20px;
    color: var(--text);
    margin-top: 32px;
    margin-bottom: 16px;
}

.blog-post-content p {
    font-size: 17px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.9;
}

.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.blog-post-content li {
    font-size: 17px;
    color: var(--text-light);
    margin-bottom: 10px;
    line-height: 1.8;
    list-style: disc;
}

.blog-post-content ol li {
    list-style: decimal;
}

.blog-post-content blockquote {
    margin: 32px 0;
    padding: 24px 32px;
    background: var(--bg-alt);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.blog-post-content blockquote p {
    font-size: 18px;
    font-style: italic;
    color: var(--text);
    margin-bottom: 0;
}

.blog-post-cta {
    margin-top: 48px;
    padding: 32px;
    background: var(--gradient);
    border-radius: var(--radius);
    text-align: center;
}

.blog-post-cta h3 {
    font-size: 22px;
    color: var(--white);
    margin-bottom: 16px;
}

.blog-post-cta p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.blog-post-cta .btn {
    background: var(--white);
    color: var(--primary-dark);
}

.blog-post-footer {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.blog-post-footer h3 {
    font-size: 20px;
    color: var(--text);
    margin-bottom: 24px;
}

.related-posts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.related-post {
    background: var(--bg-alt);
    padding: 24px;
    border-radius: var(--radius);
}

.related-post h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.related-post h4 a {
    color: var(--text);
}

.related-post h4 a:hover {
    color: var(--primary);
}

.related-post p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-visual {
        order: -1;
    }

    .hero-icon {
        font-size: 80px;
    }

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

    .tool-container {
        grid-template-columns: 1fr;
    }

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

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

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

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

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

    .related-posts {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: 0 10px 30px var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav a {
        padding: 16px 0;
        border-bottom: 1px solid var(--border);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 60px 0;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 26px;
    }

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

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

    .size-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .size-btn {
        width: 100%;
    }

    .cost-row {
        grid-template-columns: 1.2fr 1fr;
    }

    .cost-cell {
        padding: 12px 16px;
        font-size: 14px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .checklist-container,
    .cost-calculator {
        padding: 24px;
    }

    .contact-form {
        padding: 24px;
    }

    .blog-post-title {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .service-cards {
        grid-template-columns: 1fr;
    }

    .faq-question {
        font-size: 15px;
        padding: 16px 20px;
    }

    .page-hero h1 {
        font-size: 28px;
    }
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .breadcrumbs,
    .hero-cta,
    .services-tabs,
    .checklist-container,
    .cost-calculator,
    .footer {
        display: none;
    }

    .section {
        padding: 20px 0;
    }

    .blog-post-cta {
        display: none;
    }
}