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

:root {
    --pink-100: #fff0f3;
    --pink-200: #ffd4de;
    --pink-300: #ffb1c4;
    --pink-400: #ff92ad;
    --pink-500: #ff7295;
    --pink-600: #e6577a;
    --pink-700: #cc3d60;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 50px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

/* ===== Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

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

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pink-600);
}

.logo-icon {
    width: 36px;
    height: 36px;
}

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--pink-400), var(--pink-600));
    border-radius: 1px;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--pink-600);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(255, 114, 149, 0.3);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(255, 114, 149, 0.4);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background: linear-gradient(160deg, var(--pink-100) 0%, #fff5f9 40%, var(--white) 100%);
    padding: 108px 0 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--pink-200) 0%, transparent 70%);
    top: -180px;
    right: -120px;
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--pink-100);
    color: var(--pink-600);
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
}

.hero-badge i {
    font-size: 0.75rem;
}

.hero-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-highlight {
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--gray-500);
    max-width: 480px;
    margin-bottom: 28px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-pink {
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    box-shadow: 0 4px 18px rgba(255, 114, 149, 0.3);
}

.btn-pink:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(255, 114, 149, 0.4);
}

.btn-ghost {
    background: none;
    color: var(--gray-600);
    padding: 13px 20px;
    font-weight: 600;
}

.btn-ghost:hover {
    color: var(--pink-600);
}

.btn-ghost i {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.btn-ghost:hover i {
    transform: translateY(3px);
}

.btn-white {
    background: var(--white);
    color: var(--pink-600);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-lg {
    padding: 18px 42px;
    font-size: 1.05rem;
}

.hero-stats {
    display: flex;
    gap: 0;
    align-items: center;
}

.hero-stat {
    text-align: center;
    padding: 0 24px;
}

.hero-stat:first-child {
    padding-left: 0;
}

.hero-stat strong {
    display: block;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-number {
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
}

.stat-suffix {
    font-size: 1rem;
    font-weight: 700;
    color: var(--pink-500);
}

.hero-stat span:last-child {
    display: block;
    font-size: 0.78rem;
    color: var(--gray-400);
    margin-top: 2px;
    font-weight: 500;
}

.hero-stat-divider {
    width: 1px;
    height: 32px;
    background: var(--gray-200);
    flex-shrink: 0;
}

/* Hero Right - Mockup */
.hero-right {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-mockup {
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 600;
}

.mockup-dots {
    display: flex;
    gap: 5px;
}

.mockup-dots i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
}

.mockup-dots i:first-child { background: rgba(255, 255, 255, 0.7); }

.mockup-body {
    padding: 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 220px;
}

.chat-msg {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-ai {
    align-self: flex-start;
}

.chat-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-300), var(--pink-500));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.7rem;
    flex-shrink: 0;
}

.chat-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.82rem;
    line-height: 1.6;
    max-width: 260px;
}

.chat-ai .chat-bubble {
    background: var(--gray-50);
    color: var(--gray-700);
    border-bottom-left-radius: 4px;
}

.chat-user .chat-bubble {
    background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
    color: var(--white);
    border-bottom-right-radius: 4px;
}

.typing-dots {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-dots i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gray-400);
    animation: blink 1.4s infinite both;
}

.typing-dots i:nth-child(2) { animation-delay: 0.2s; }
.typing-dots i:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1); }
}

.mockup-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-top: 1px solid var(--gray-100);
}

.mockup-input {
    flex: 1;
    padding: 9px 14px;
    background: var(--gray-50);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 8px;
}

.mockup-send {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-700);
    animation: floatCard 6s ease-in-out infinite;
    z-index: 2;
}

.hero-float-card i {
    color: var(--pink-500);
}

.float-card-1 {
    top: 10%;
    right: -10px;
    animation-delay: 0s;
}

.float-card-2 {
    bottom: 12%;
    left: -10px;
    animation-delay: 3s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--pink-100);
    color: var(--pink-600);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features ===== */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--pink-300), var(--pink-600));
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--pink-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
    border-radius: 14px;
    margin-bottom: 20px;
    color: var(--pink-600);
}

.feature-icon svg {
    width: 26px;
    height: 26px;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== Highlights ===== */
.highlights {
    background: var(--gray-50);
    overflow: hidden;
}

.highlights-bg {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--pink-100) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}

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

.highlight-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.highlight-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.highlight-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    border-radius: 16px;
    color: var(--white);
}

.highlight-icon svg {
    width: 26px;
    height: 26px;
}

.highlight-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.highlight-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== Tech ===== */
.tech {
    background: var(--white);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.tech-card {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.tech-card:hover {
    border-color: var(--pink-200);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.tech-icon-wrap {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
    border-radius: 50%;
    color: var(--pink-600);
}

.tech-icon-wrap svg {
    width: 28px;
    height: 28px;
}

.tech-card span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
}

/* ===== Audience ===== */
.audience {
    background: var(--gray-50);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.audience-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.audience-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.audience-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
}

.audience-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
}

.audience-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== Updates ===== */
.updates {
    background: var(--white);
    overflow: hidden;
}

.updates-bg {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--pink-100) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    pointer-events: none;
}

.updates-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.update-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.update-card:hover {
    border-color: var(--pink-200);
    box-shadow: var(--shadow-md);
}

.update-dot {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    margin-top: 6px;
}

.update-date {
    font-size: 0.8rem;
    color: var(--pink-500);
    font-weight: 600;
}

.update-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 4px 0 6px;
}

.update-content p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ===== Reviews ===== */
.reviews {
    background: var(--gray-50);
}

.reviews-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.review-score {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
}

.review-stars {
    display: flex;
    gap: 4px;
}

.review-stars svg {
    width: 22px;
    height: 22px;
}

.review-count {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

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

.review-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.review-name {
    font-weight: 700;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.review-tag {
    font-size: 0.75rem;
    color: var(--pink-500);
    font-weight: 500;
}

.review-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
    font-style: italic;
}

/* ===== FAQ ===== */
.faq {
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--pink-300);
    box-shadow: 0 0 0 1px var(--pink-200);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    text-align: left;
    transition: var(--transition);
    font-family: inherit;
}

.faq-question:hover {
    color: var(--pink-600);
}

.faq-arrow {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--gray-400);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--pink-500);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, var(--pink-400) 0%, var(--pink-600) 50%, var(--pink-700) 100%);
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.cta-orb-1 {
    width: 400px;
    height: 400px;
    background: var(--pink-200);
    top: -100px;
    left: -100px;
}

.cta-orb-2 {
    width: 300px;
    height: 300px;
    background: var(--pink-700);
    bottom: -80px;
    right: -80px;
}

.cta-content {
    position: relative;
    text-align: center;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
    max-width: 380px;
}

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

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--gray-500);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.footer-col a:hover {
    color: var(--pink-400);
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    margin-top: 0;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--gray-100);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-cta {
        padding: 7px 16px;
        font-size: 0.8rem;
        margin-left: auto;
        margin-right: 12px;
    }

    .mobile-toggle {
        display: flex;
    }

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

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

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

    .hero {
        padding: 96px 0 48px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-right {
        display: none;
    }

    .hero-mockup {
        max-width: 340px;
    }

    .hero-float-card {
        display: none;
    }

    .section {
        padding: 70px 0;
    }

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

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

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

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

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

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

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

    .footer-top {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-stat {
        padding: 0 16px;
    }

    .hero-stat strong {
        font-size: 1.1rem;
    }

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

    .highlight-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .page-content {
        padding: 48px 0 60px;
    }

    .legal-doc h2 {
        font-size: 1.15rem;
    }

    .guide-toc {
        position: static;
        width: 100%;
    }

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

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

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

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(255, 114, 149, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(255, 114, 149, 0.4);
}

/* ===== Inner Page Styles ===== */
.page-hero {
    background: linear-gradient(160deg, var(--pink-100) 0%, #fff5f9 60%, var(--white) 100%);
    padding: 120px 0 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--pink-200) 0%, transparent 70%);
    top: -150px;
    right: -100px;
    pointer-events: none;
}

.page-hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 12px;
    position: relative;
}

.page-hero p {
    font-size: 1rem;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto;
    position: relative;
}

.page-hero .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-bottom: 16px;
    position: relative;
}

.page-hero .breadcrumb a {
    color: var(--pink-500);
}

.page-hero .breadcrumb a:hover {
    color: var(--pink-600);
}

.page-content {
    padding: 60px 0 80px;
}

/* Legal Document Styles */
.legal-doc {
    max-width: 800px;
    margin: 0 auto;
}

.legal-doc .last-updated {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-bottom: 36px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-100);
}

.legal-doc h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 36px 0 12px;
}

.legal-doc h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 24px 0 10px;
}

.legal-doc p,
.legal-doc li {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 12px;
}

.legal-doc ul {
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal-doc ul li {
    margin-bottom: 6px;
}

/* User Guide Styles */
.guide-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.guide-toc {
    position: sticky;
    top: 92px;
    align-self: start;
}

.guide-toc h3 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 14px;
}

.guide-toc ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.guide-toc a {
    display: block;
    padding: 8px 14px;
    font-size: 0.88rem;
    color: var(--gray-600);
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.guide-toc a:hover,
.guide-toc a.active {
    background: var(--pink-100);
    color: var(--pink-600);
}

.guide-body h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 40px 0 14px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-100);
}

.guide-body h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.guide-body h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 20px 0 10px;
}

.guide-body p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 12px;
}

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

.guide-body li {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 6px;
}

.guide-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.guide-step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.guide-step p {
    margin: 0;
}

/* Support & Feedback Styles */
.support-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto 48px;
}

.support-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.support-card:hover {
    border-color: var(--pink-200);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.support-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
    border-radius: 16px;
    color: var(--pink-600);
    font-size: 1.3rem;
}

.support-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.support-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.7;
}

.support-card a {
    color: var(--pink-600);
}

.support-card a:hover {
    color: var(--pink-500);
}

.feedback-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-family: inherit;
    color: var(--gray-700);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--pink-400);
    box-shadow: 0 0 0 3px rgba(255, 114, 149, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--pink-400), var(--pink-600));
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 114, 149, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 114, 149, 0.4);
}

.feedback-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.feedback-info p {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 24px;
}

.feedback-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-100);
}

.feedback-contact-item i {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pink-100);
    color: var(--pink-600);
    border-radius: 10px;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.feedback-contact-item span {
    font-size: 0.92rem;
    color: var(--gray-600);
}

/* Inner page FAQ reuse existing .faq-list styles */
.page-faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-category {
    margin-bottom: 40px;
}

.faq-category h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--pink-200);
}

/* ===== Article Page ===== */
.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-100);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--gray-400);
}

.article-meta-item i {
    font-size: 0.8rem;
    color: var(--pink-400);
}

.article-tag {
    display: inline-block;
    padding: 3px 12px;
    background: var(--pink-100);
    color: var(--pink-600);
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 50px;
}

.article-body h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 32px 0 14px;
}

.article-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 24px 0 10px;
}

.article-body p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.9;
    margin-bottom: 14px;
}

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

.article-body li {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 6px;
}

.article-body blockquote {
    margin: 24px 0;
    padding: 16px 24px;
    background: var(--gray-50);
    border-left: 4px solid var(--pink-400);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body blockquote p {
    margin: 0;
    color: var(--gray-700);
    font-style: italic;
}

.article-highlight-box {
    background: linear-gradient(135deg, #fff5f7, #fff0f3);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin: 28px 0;
}

.article-highlight-box h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--pink-600);
    margin-bottom: 10px;
}

.article-highlight-box ul {
    padding-left: 20px;
    margin: 0;
}

.article-highlight-box li {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid var(--gray-100);
}

.article-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-500);
    transition: var(--transition);
}

.article-nav a:hover {
    color: var(--pink-600);
}

.article-nav a i {
    font-size: 0.75rem;
}

a.update-card {
    text-decoration: none;
    color: inherit;
}