/* CSS Variables - Match with main page */
:root {
    --bg-cream: #F8F7F2;
    --bg-dark: #121212;
    --bg-card-white: #FFFFFF;
    --bg-card-purple: #B5A8E0;

    --text-black: #000000;
    --text-dark-gray: #333333;
    --text-gray: #666666;
    --text-light-gray: #999999;
    --text-white: #FFFFFF;

    --accent-purple: #B5A8E0;
    --accent-purple-deep: #6055A6;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    --spacing-3xl: 48px;

    --font-main: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: auto;
    scroll-padding-top: 80px;
}

body.landing-page {
    font-family: var(--font-main);
    color: var(--text-black);
    background-color: var(--bg-cream);
    background-image:
        linear-gradient(rgba(96, 85, 166, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 85, 166, 0.055) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: top center;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.brand-page {
    background-color: var(--bg-cream);
    background-image:
        linear-gradient(rgba(96, 85, 166, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 85, 166, 0.055) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: top center;
}

/* Landing Container - Full Width Layout */
.landing-container {
    width: 100%;
    min-height: 100vh;
    overflow-y: auto;
    padding-top: 60px; /* 补偿固定导航栏的高度 */
}

.brand-page .landing-container {
    background-image:
        linear-gradient(rgba(96, 85, 166, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 85, 166, 0.045) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: top center;
}

/* Top Navigation Bar - Sticky - Fixed at Top */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(248, 247, 242, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-lg) var(--spacing-3xl);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-black);
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.nav-logo:hover {
    opacity: 0.8;
}

.nav-logo img {
    border-radius: var(--radius-md);
}

/* Clickable brand logo (brand.html) — slightly larger logo circle */
a.nav-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
}

.nav-logo svg {
    flex-shrink: 0;
}

.nav-brand {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links-inner {
    display: contents;
}

.nav-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
    border: 1px solid rgba(18, 18, 18, 0.1);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.72);
    color: var(--text-black);
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.92);
    border-color: rgba(18, 18, 18, 0.18);
    box-shadow: 0 8px 20px rgba(18, 18, 18, 0.08);
}

.nav-menu-toggle span {
    width: 16px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.24s ease, opacity 0.18s ease;
}

.brand-page.nav-open .nav-menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.brand-page.nav-open .nav-menu-toggle span:nth-child(2) {
    opacity: 0;
}

.brand-page.nav-open .nav-menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text-black);
}

/* Enter News Button - Top Right */
.enter-news-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-purple);
    color: var(--text-black);
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.enter-news-btn:hover {
    background: var(--accent-purple);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(181, 168, 224, 0.3);
}

.enter-news-btn svg {
    transition: transform 0.2s ease;
}

.enter-news-btn:hover svg {
    transform: translateX(2px);
}

@media (max-width: 768px) {
    body.brand-page,
    .brand-page .landing-container {
        background-size: 28px 28px;
    }

    .brand-page .hero-modern-section {
        background-size: 28px 28px, 28px 28px, auto;
    }

    .brand-page .top-nav {
        --brand-nav-logo: clamp(36px, 4.5vw, 44px);
        left: 0;
        right: 0;
        width: auto;
        min-width: 0;
        min-height: clamp(56px, 7vw, 64px);
        margin: 0;
        padding: clamp(8px, 1.2vw, 12px);
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-sm);
        border-width: 0 0 1px;
        border-radius: 0;
        box-shadow: 0 8px 24px rgba(18, 18, 18, 0.08);
    }

    .brand-page .landing-container {
        padding-top: 0;
    }

    .brand-page .nav-menu-toggle {
        display: inline-flex;
        order: 2;
        flex: 0 0 auto;
        width: clamp(36px, 5vw, 40px);
        height: clamp(36px, 5vw, 40px);
    }

    .brand-page .nav-logo {
        flex: 0 0 auto;
        gap: var(--spacing-sm);
        min-width: 0;
        padding-right: 0;
    }

    .brand-page .nav-logo img {
        width: var(--brand-nav-logo);
        height: var(--brand-nav-logo);
    }

    .brand-page .nav-brand {
        font-size: clamp(0.9375rem, 1.7vw, 1.0625rem);
    }

    .brand-page .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100vw;
        display: grid;
        grid-template-rows: 0fr;
        gap: 0;
        padding: 0 var(--spacing-sm);
        overflow: hidden;
        pointer-events: none;
        opacity: 0;
        background: rgba(248, 247, 242, 0.98);
        border-width: 0 0 1px;
        border-radius: 0 0 var(--radius-xl) var(--radius-xl);
        box-shadow: 0 18px 42px rgba(18, 18, 18, 0.12);
        transition: grid-template-rows 0.28s ease, padding 0.28s ease, opacity 0.2s ease;
    }

    .brand-page.nav-open .nav-links {
        grid-template-rows: 1fr;
        padding: 0 clamp(16px, 4vw, 32px);
        pointer-events: auto;
        opacity: 1;
    }

    .brand-page .nav-links-inner {
        display: flex;
        min-height: 0;
        overflow: hidden;
        flex-direction: column;
        gap: 0;
    }

    .brand-page .nav-link,
    .brand-page .enter-news-btn {
        min-height: clamp(44px, 6vw, 52px);
        width: 100%;
        justify-content: flex-start;
        padding: clamp(12px, 2vw, 16px) 0;
        border-radius: 0;
        border-bottom: 1px solid rgba(18, 18, 18, 0.1);
        background: transparent;
        box-shadow: none;
        color: var(--text-dark-gray);
        font-size: clamp(0.9375rem, 1.8vw, 1rem);
    }

    .brand-page .nav-links-inner a:last-child {
        border-bottom: 0;
    }

    .brand-page .nav-link,
    .brand-page .enter-news-btn {
        display: flex;
        align-items: center;
    }

    .brand-page .enter-news-btn svg {
        display: none;
    }

    .brand-page .enter-news-btn:hover,
    .brand-page .nav-link:hover {
        color: var(--text-black);
        background: transparent;
        transform: none;
        box-shadow: none;
    }
}

.brand-section {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-3xl) var(--spacing-2xl);
    margin-bottom: 0;
}

.brand-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-black);
}

.brand-logo img {
    border-radius: var(--radius-lg);
}

.brand-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-black);
    letter-spacing: 0;
    margin-bottom: var(--spacing-xs);
}

.brand-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.brand-tagline {
    font-size: 1.125rem;
    color: var(--text-gray);
    font-weight: 500;
}

/* Content Sections */
.content-section {
    padding: var(--spacing-2xl) var(--spacing-3xl);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.content-section:first-of-type {
    border-top: none;
}

.content-section:last-of-type {
    padding-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-black);
    letter-spacing: 0;
    margin-bottom: var(--spacing-md);
}

.section-content {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 听众画像样式 */
.audience-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.audience-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.audience-item:hover {
    background: var(--bg-card-white);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.audience-item h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-sm);
}

.audience-item p {
    font-size: 0.9375rem;
    color: var(--text-gray);
    margin: 0;
    line-height: 1.6;
}

/* 广告合作样式 */
.advertise-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.advertise-section {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 180px;
}

.advertise-section:hover {
    background: var(--bg-card-white);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.advertise-section h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-purple);
}

.advertise-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    flex: 1;
}

.advertise-section li {
    font-size: 0.9375rem;
    color: var(--text-gray);
    line-height: 1.6;
    padding-left: var(--spacing-md);
    position: relative;
    white-space: nowrap;
}

/* 优势卡片网格布局 */
.advantages-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    justify-content: center;
    flex: 1;
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-cream);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.advantage-item:hover {
    background: rgba(181, 168, 224, 0.2);
    transform: translateX(4px);
}

.advantage-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card-white);
    border-radius: var(--radius-sm);
    color: var(--accent-purple);
    flex-shrink: 0;
}

.advantage-content {
    flex: 1;
    min-width: 0;
}

.advantage-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: 2px;
}

.advantage-value {
    font-size: 0.8125rem;
    color: var(--text-gray);
    line-height: 1.4;
}

.advertise-section li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: rgba(181, 168, 224, 0.4);
    font-weight: 700;
}

/* 合作流程样式 */
.cooperation-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.flow-step {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-card-white);
    color: var(--text-black);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid rgba(181, 168, 224, 0.2);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.flow-step:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.flow-step .step-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-purple);
    color: var(--text-black);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.flow-step .step-title {
    display: block;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-xs);
}

.flow-step .step-desc {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) var(--spacing-3xl);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    margin-bottom: var(--spacing-lg);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-black);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-gray);
    font-weight: 500;
}

/* Features Section */
.features-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) var(--spacing-3xl);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-black);
    letter-spacing: 0;
    margin-bottom: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    cursor: pointer;
}

.feature-item:hover {
    background: var(--bg-card-white);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-purple);
    color: var(--text-black);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-xs);
}

.feature-content p {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.6;
}

/* Testimonials */
.testimonials {
    background: var(--bg-card-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) var(--spacing-3xl);
}

.testimonial-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 0.9375rem;
    color: var(--text-dark-gray);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.testimonial-author {
    font-size: 0.875rem;
    color: var(--text-gray);
    font-weight: 500;
}


/* Scrollbar for landing page */
.landing-container::-webkit-scrollbar {
    width: 6px;
}

.landing-container::-webkit-scrollbar-track {
    background: var(--bg-cream);
}

.landing-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.landing-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Loading Animation */
.landing-container {
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

.landing-container.loaded {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .top-nav {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }

    .nav-links {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        width: 100%;
    }

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

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

    .advertise-info {
        grid-template-columns: 1fr;
    }

    .cooperation-flow {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .flow-step {
        padding: var(--spacing-lg);
    }

    .brand-page .top-nav {
        min-height: 56px;
    }
}

@media (max-width: 640px) {
    .stats-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* 广告合作在非常小的屏幕上保持横向但极度紧凑 */
    .advertise-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xs);
        padding: 0 var(--spacing-xs);
    }

    .advertise-column {
        padding: var(--spacing-xs) var(--spacing-sm);
        min-height: 180px;
    }

    .advertise-column-title {
        font-size: 0.875rem;
        margin-bottom: var(--spacing-sm);
    }

    .advertise-advantage-item {
        margin-bottom: var(--spacing-xs);
    }

    .advertise-advantage-label {
        font-size: 0.75rem;
    }

    .advertise-advantage-value {
        font-size: 0.6875rem;
        line-height: 1.3;
    }
}

/* 极小屏幕 (480px以下) - 广告合作保持横向，最小化间距 */
@media (max-width: 480px) {
    .advertise-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2px;
        padding: 0 2px;
    }

    .advertise-column {
        padding: 4px 6px;
        min-height: 160px;
    }

    .advertise-column-title {
        font-size: 0.8125rem;
        margin-bottom: 4px;
        padding-bottom: 4px;
    }

    .advertise-advantage-item {
        margin-bottom: 2px;
    }

    .advertise-advantage-label {
        font-size: 0.6875rem;
        margin-bottom: 1px;
    }

    .advertise-advantage-value {
        font-size: 0.625rem;
        line-height: 1.2;
    }

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

    .advertise-cta-btn {
        font-size: 0.875rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ========== CONTACT MODAL ========== */
.contact-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.contact-modal.active {
    display: block;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 540px;
    max-height: 90vh;
    margin: 5vh auto;
    background: var(--bg-card-white);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: var(--spacing-2xl);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-gray);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-black);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-black);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0;
}

.modal-subtitle {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.6;
    padding-right: var(--spacing-3xl);
}

.contact-form {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-form .form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-black);
}

.contact-form .required {
    color: #d32f2f;
}

.contact-form .form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-cream);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-black);
    font-size: 0.9375rem;
    font-family: var(--font-main);
    transition: all 0.2s ease;
}

.contact-form .form-input::placeholder {
    color: var(--text-light-gray);
}

.contact-form .form-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: var(--bg-card-white);
    box-shadow: 0 0 0 3px rgba(181, 168, 224, 0.2);
}

.contact-form .form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-cream);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-black);
    font-size: 0.9375rem;
    font-family: var(--font-main);
    resize: vertical;
    min-height: 100px;
    transition: all 0.2s ease;
}

.contact-form .form-textarea::placeholder {
    color: var(--text-light-gray);
}

.contact-form .form-textarea:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: var(--bg-card-white);
    box-shadow: 0 0 0 3px rgba(181, 168, 224, 0.2);
}

.submit-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--accent-purple);
    color: var(--text-black);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all 0.2s ease;
}

.submit-btn:hover {
    background: var(--accent-purple);
    transform: translateY(-2px);
}

/* Modal Scrollbar */
.modal-container::-webkit-scrollbar {
    width: 6px;
}

.modal-container::-webkit-scrollbar-track {
    background: var(--bg-cream);
}

.modal-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Responsive Modal */
@media (max-width: 640px) {
    .modal-container {
        width: 95%;
        margin: 2.5vh auto;
        max-height: 95vh;
    }

    .modal-header {
        padding: var(--spacing-xl);
    }

    .contact-form {
        padding: var(--spacing-xl);
    }

    .modal-title {
        font-size: 1.25rem;
    }
}

/* ========== MODERN HERO SECTION - 居中设计 ========== */
.hero-modern-section {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px var(--spacing-3xl) 80px;
    background: linear-gradient(135deg, rgba(181, 168, 224, 0.08) 0%, rgba(248, 247, 242, 1) 50%, rgba(181, 168, 224, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.brand-page .hero-modern-section {
    background-image:
        linear-gradient(rgba(96, 85, 166, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 85, 166, 0.05) 1px, transparent 1px),
        linear-gradient(135deg, rgba(181, 168, 224, 0.08) 0%, rgba(248, 247, 242, 0.94) 50%, rgba(181, 168, 224, 0.05) 100%);
    background-size: 32px 32px, 32px 32px, auto;
    background-position: top center;
}

.hero-modern-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0;
    background: transparent;
    border: none;
    /* Primary tagline under the logo */
    font-size: clamp(1.25rem, 3vw, 1.625rem);
    font-weight: 600;
    color: var(--text-black);
    letter-spacing: 0;
    line-height: 1.3;
    margin: 0 0 var(--spacing-lg) 0;
}

    .hero-modern-title {
        font-size: clamp(3rem, 8vw, 5rem);
        font-weight: 700;
        color: var(--text-black);
        margin: 0 0 var(--spacing-md) 0;
        letter-spacing: 0;
        line-height: 1.1;
    }

.hero-modern-logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.hero-logo-img {
    width: clamp(196px, 29vw, 292px);
    height: auto;
    object-fit: contain;
}

    .hero-modern-subtitle {
        /* Eyebrow label above the tagline */
        font-size: clamp(0.8rem, 1.5vw, 0.9375rem);
        font-weight: 600;
    color: var(--accent-purple-deep);
        margin: 0 0 var(--spacing-sm) 0;
        letter-spacing: 0.28em;
        text-transform: uppercase;
    }

.hero-modern-description {
    font-size: clamp(0.95rem, 1.8vw, 1.125rem);
    color: var(--text-gray);
    margin: 0 auto var(--spacing-3xl);
    max-width: 560px;
    line-height: 1.7;
}

/* Hero区域数据统计 */
.hero-stats-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
    padding: var(--spacing-2xl);
    background: transparent;
}

.hero-stat-item {
    text-align: center;
    flex: 1;
    min-width: 0;
}

.hero-stat-number {
    font-size: clamp(1.75rem, 4.2vw, 2.625rem);
    font-weight: 700;
    color: var(--text-black);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0;
    line-height: 1;
}

.hero-stat-label {
    font-size: clamp(0.7rem, 1.1vw, 0.8125rem);
    color: var(--text-gray);
    font-weight: 500;
    white-space: nowrap;
}

.hero-stat-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, transparent 0%, rgba(181, 168, 224, 0.3) 50%, transparent 100%);
    flex-shrink: 0;
}

.hero-modern-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-modern-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    background: var(--accent-purple);
    color: var(--text-black);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(181, 168, 224, 0.4);
}

.hero-modern-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(181, 168, 224, 0.5);
    background: #a894d4;
}

.hero-modern-btn-primary svg {
    transition: transform 0.2s ease;
}

.hero-modern-btn-primary:hover svg {
    transform: translateX(4px);
}

.hero-modern-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    background: transparent;
    color: var(--text-dark-gray);
    border: 2px solid rgba(181, 168, 224, 0.3);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    transition: all 0.3s ease;
}

.hero-modern-btn-secondary:hover {
    background: rgba(181, 168, 224, 0.1);
    border-color: var(--accent-purple);
    color: var(--text-black);
}

/* 浮动装饰元素 */
.hero-float-element {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(181, 168, 224, 0.3), rgba(181, 168, 224, 0.1));
    filter: blur(1px);
    will-change: transform;
}

.hero-float-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -100px;
    animation: floatDrift1 18s ease-in-out infinite;
}

.hero-float-2 {
    width: 200px;
    height: 200px;
    bottom: 10%;
    left: -50px;
    animation: floatDrift2 14s ease-in-out infinite;
    animation-delay: -3s;
}

.hero-float-3 {
    width: 150px;
    height: 150px;
    top: 20%;
    left: 10%;
    animation: floatDrift3 11s ease-in-out infinite;
    animation-delay: -6s;
}

/* Each circle drifts on its own diagonal path so motion feels lively, not uniform */
@keyframes floatDrift1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.35; }
    33%      { transform: translate(-70px, 60px) rotate(120deg); opacity: 0.6; }
    66%      { transform: translate(40px, 110px) rotate(240deg); opacity: 0.5; }
}

@keyframes floatDrift2 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.4; }
    50%      { transform: translate(90px, -70px) rotate(180deg); opacity: 0.65; }
}

@keyframes floatDrift3 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.3; }
    40%      { transform: translate(60px, 50px) rotate(140deg); opacity: 0.6; }
    75%      { transform: translate(-50px, -40px) rotate(260deg); opacity: 0.5; }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    .hero-float-element {
        animation: none;
    }
}

/* ========== SCROLL / LOAD REVEAL ========== */
/* Elements start hidden + nudged down, then fade/slide up when they enter view.
   Per-element transition-delay (set inline) creates the top-to-bottom cascade. */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ========== STATS HORIZONTAL SECTION ========== */
.stats-horizontal-section {
    background: var(--bg-card-white);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: var(--spacing-2xl) var(--spacing-3xl);
}

.stats-horizontal-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: var(--spacing-xl);
}

.stats-item-horizontal {
    text-align: center;
}

.stats-number-horizontal {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-purple);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0;
    line-height: 1;
}

.stats-label-horizontal {
    font-size: 1rem;
    color: var(--text-gray);
    font-weight: 500;
}

.stats-divider-horizontal {
    width: 1px;
    height: 60px;
    background: rgba(181, 168, 224, 0.2);
}

/* ========== ABOUT HORIZONTAL SECTION ========== */
.about-horizontal-section {
    padding: var(--spacing-2xl) var(--spacing-3xl);
    background: transparent;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title-center {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-black);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    letter-spacing: 0;
}

/* News-style section heading (mirrors news.html: purple bar + left title) */
.section-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--spacing-xl);
}

.section-head-bar {
    width: 4px;
    height: 20px;
    border-radius: 2px;
    background: var(--accent-purple);
    flex-shrink: 0;
}

.section-head-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-black);
    letter-spacing: 0.02em;
}

.about-cards-horizontal {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    align-items: start;
}

.about-card-horizontal {
    background: transparent;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: none;
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-sm);
}

.about-card-horizontal:hover {
    transform: translateY(-4px);
}

.about-icon-wrapper {
    margin-bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.about-icon-image {
    width: 200px;
    height: 133px; /* 精确的3:2比例 */
    background-image: url('/assets/images/关于我们.png');
    background-size: 600px 400px; /* 三个图标，每个200px x 133px，保持精确比例 */
    background-repeat: no-repeat;
    border-radius: var(--radius-xl);
    display: block;
}

.about-icon-image-new {
    width: clamp(56px, 14vw, 120px);
    height: clamp(56px, 14vw, 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: var(--radius-xl);
    transition: transform 0.3s ease;
}

.about-card-horizontal:hover .about-icon-image-new {
    transform: scale(1.05);
}

.about-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.about-icon-team {
    /* 第一个图标：QS20顶尖团队 - 0px */
    background-position: 0 center;
}

.about-icon-update {
    /* 第二个图标：每日更新 - -200px */
    background-position: -200px center;
}

.about-icon-podcast {
    /* 第三个图标：音频播客 - -400px */
    background-position: -400px center;
}

.about-icon-horizontal {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-purple);
    color: var(--text-black);
    border-radius: var(--radius-lg);
    margin: 0 auto;
}

.about-card-title {
    font-size: clamp(1.05rem, 3vw, 1.25rem);
    font-weight: 600;
    color: var(--text-black);
    margin: 0;
}

.about-card-desc {
    font-size: clamp(0.85rem, 2.6vw, 0.9375rem);
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
    text-align: center;
}

/* ========== FOLLOW US SECTION (关注我们) ========== */
.social-section {
    padding: var(--spacing-2xl) var(--spacing-3xl);
    background: transparent;
}

.about-social-sub {
    font-size: 0.9375rem;
    color: var(--text-gray);
    margin: 0 0 var(--spacing-2xl);
}

.about-social-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 132px));
    gap: var(--spacing-lg);
    justify-content: center;
}

.about-social-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: transform 0.25s ease;
}

.about-social-card:hover {
    transform: translateY(-4px);
}

.about-social-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-social-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 14px;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.12));
}

.about-social-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-dark-gray);
}

/* ========== FOCUS SECTION ========== */
.focus-section {
    padding: var(--spacing-2xl) var(--spacing-3xl);
    background: transparent;
}

/* Divider line between the three page sections — inset & centered,
   sits at the top of each section so spacing stays symmetric at every breakpoint */
.focus-section,
.social-section {
    position: relative;
}

.focus-section::before,
.social-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    max-width: 1100px;
    height: 1px;
    background: rgba(96, 85, 166, 0.16);
}

.focus-cards-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
}

.focus-card-small {
    background: transparent;
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: var(--radius-lg);
    border: none;
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.focus-card-small:hover {
    transform: translateY(-2px);
}

.focus-icon-small {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(181, 168, 224, 0.15);
    color: var(--accent-purple);
    border-radius: var(--radius-lg);
}

.focus-icon-image {
    width: clamp(64px, 16vw, 100px);
    height: clamp(64px, 16vw, 100px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    background: transparent;
    padding: var(--spacing-sm);
    transition: transform 0.3s ease;
}

.focus-card-small:hover .focus-icon-image {
    transform: scale(1.05);
}

.focus-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.focus-card-title {
    font-size: clamp(0.95rem, 2.6vw, 1.0625rem);
    font-weight: 600;
    color: var(--text-black);
    margin: 0;
}

.focus-card-desc {
    font-size: clamp(0.8rem, 2.4vw, 0.875rem);
    color: var(--text-gray);
    margin: 0;
    line-height: 1.7;
    text-align: center;
}

/* ========== AUDIENCE SECTION ========== */
.audience-section {
    padding: var(--spacing-3xl) var(--spacing-3xl);
    background: var(--bg-card-white);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.audience-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(181, 168, 224, 0.1);
    transition: all 0.3s ease;
}

.audience-card:hover {
    background: var(--bg-card-white);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border-color: rgba(181, 168, 224, 0.2);
}

.audience-label {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--accent-purple);
    margin: 0 0 var(--spacing-sm) 0;
}

.audience-text {
    font-size: 0.9375rem;
    color: var(--text-gray);
    margin: 0;
    line-height: 1.6;
}

/* ========== ADVERTISE SECTION ========== */
.advertise-section {
    padding: var(--spacing-3xl) var(--spacing-3xl);
    background: var(--bg-cream);
}

.advertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: var(--spacing-2xl);
}

.advertise-column {
    padding: var(--spacing-xl);
    background: var(--bg-card-white);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(181, 168, 224, 0.2);
    display: flex;
    flex-direction: column;
    min-height: 280px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.advertise-column:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(181, 168, 224, 0.25);
    border-color: rgba(181, 168, 224, 0.4);
}

.advertise-column-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-black);
    margin: 0 0 var(--spacing-lg) 0;
    padding-bottom: var(--spacing-sm);
    text-align: center;
    border-bottom: 2px solid var(--accent-purple);
}

.advertise-advantages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.advertise-advantage-item {
    padding: var(--spacing-md);
    background: rgba(181, 168, 224, 0.08);
    border-radius: var(--radius-md);
    border: 1px solid rgba(181, 168, 224, 0.15);
    transition: all 0.2s ease;
}

.advertise-advantage-item:hover {
    background: rgba(181, 168, 224, 0.15);
    border-color: rgba(181, 168, 224, 0.3);
    transform: translateX(2px);
}

.advertise-advantage-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card-white);
    border-radius: var(--radius-sm);
    color: var(--accent-purple);
    flex-shrink: 0;
}

.advertise-advantage-content {
    flex: 1;
}

.advertise-advantage-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-black);
    margin-bottom: var(--spacing-xs);
}

.advertise-advantage-value {
    font-size: 0.8125rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* CTA Button */
.advertise-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.advertise-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--accent-purple);
    color: var(--text-black);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(181, 168, 224, 0.3);
}

.advertise-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(181, 168, 224, 0.4);
    background: #a894d4;
}

.advertise-cta-btn:active {
    transform: translateY(0);
}

.advertise-cta-btn svg {
    transition: transform 0.2s ease;
}

.advertise-cta-btn:hover svg {
    transform: translateX(2px);
}

.advertise-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.advertise-list li {
    font-size: 0.9375rem;
    color: var(--text-gray);
    line-height: 1.6;
    padding-left: var(--spacing-lg);
    position: relative;
}

.advertise-list li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-purple);
    font-weight: 700;
}

/* ========== COOPERATION SECTION ========== */
.cooperation-section {
    padding: var(--spacing-3xl) var(--spacing-3xl);
    background: var(--bg-card-white);
}

.cooperation-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.cooperation-step-card {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--bg-card-white);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(181, 168, 224, 0.2);
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.cooperation-step-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.cooperation-step-icon {
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.cooperation-step-card:hover .cooperation-step-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(181, 168, 224, 0.2);
}

.cooperation-step-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cooperation-step-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-black);
    margin: 0;
}

.cooperation-step-desc {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.5;
    margin: 0;
}

/* ========== CTA SECTION ========== */
.cta-section {
    padding: var(--spacing-3xl) var(--spacing-3xl);
    background: linear-gradient(135deg, rgba(181, 168, 224, 0.1) 0%, rgba(181, 168, 224, 0.05) 100%);
}

.cta-container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--bg-card-white);
    padding: var(--spacing-2xl) var(--spacing-3xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 32px rgba(181, 168, 224, 0.15);
    border: 1px solid rgba(181, 168, 224, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
}

.cta-content {
    flex: 1;
}

.cta-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-black);
    margin: 0 0 var(--spacing-sm) 0;
    letter-spacing: 0;
}

.cta-description {
    font-size: 1rem;
    color: var(--text-gray);
    margin: 0;
}

.cta-action {
    flex-shrink: 0;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--accent-purple);
    color: var(--text-black);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(181, 168, 224, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(181, 168, 224, 0.4);
}

.cta-button svg {
    transition: transform 0.2s ease;
}

.cta-button:hover svg {
    transform: translateX(2px);
}

/* ========== FOOTER ========== */
.site-footer {
    background: var(--bg-card-white);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding: var(--spacing-2xl) var(--spacing-3xl) var(--spacing-xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.footer-logo img {
    border-radius: var(--radius-md);
}

.footer-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-black);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin: 0;
}

.footer-center {
    display: flex;
    justify-content: center;
}

.footer-nav {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--text-black);
}

.footer-right {
    display: flex;
    justify-content: flex-end;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.social-link:hover {
    transform: translateY(-2px);
}

.social-link img {
    width: 34px;
    height: 34px;
    object-fit: cover;
    border-radius: 8px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    mix-blend-mode: multiply;
    padding: 0;
    background: transparent;
    background-color: transparent;
}

.xiaoyuzhou-link img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1)) brightness(1.1) contrast(1.1);
    mix-blend-mode: multiply;
}

.xiaohongshu-link img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1)) brightness(1.05) contrast(1.05);
    mix-blend-mode: multiply;
}

.douyin-link img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1)) brightness(1.05) contrast(1.05);
    mix-blend-mode: multiply;
}

.podcast-link img {
    width: 38px;
    height: 38px;
}

/* ========== FLOATING GLOBE ANIMATION ========== */
.hero-visual {
    width: 100%;
    max-width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.floating-globe {
    position: relative;
    width: 280px;
    height: 280px;
    animation: globeFloat 6s ease-in-out infinite;
}

@keyframes globeFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.globe-outer {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg,
        rgba(181, 168, 224, 0.25) 0%,
        rgba(181, 168, 224, 0.08) 50%,
        rgba(181, 168, 224, 0.18) 100%);
    box-shadow:
        inset -15px -15px 30px rgba(181, 168, 224, 0.25),
        inset 15px 15px 30px rgba(255, 255, 255, 0.15),
        0 15px 45px rgba(181, 168, 224, 0.3);
    animation: globeRotate 25s linear infinite;
}

@keyframes globeRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.globe-inner {
    position: absolute;
    top: 18%;
    left: 18%;
    width: 64%;
    height: 64%;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%,
        rgba(181, 168, 224, 0.35) 0%,
        rgba(181, 168, 224, 0.15) 50%,
        rgba(181, 168, 224, 0.25) 100%);
    box-shadow: inset -8px -8px 25px rgba(181, 168, 224, 0.35);
}

.globe-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 18px,
            rgba(181, 168, 224, 0.08) 18px,
            rgba(181, 168, 224, 0.08) 20px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 18px,
            rgba(181, 168, 224, 0.08) 18px,
            rgba(181, 168, 224, 0.08) 20px
        );
    animation: linesRotate 35s linear infinite reverse;
}

@keyframes linesRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.globe-atmosphere {
    position: absolute;
    top: -8%;
    left: -8%;
    width: 116%;
    height: 116%;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%,
        rgba(181, 168, 224, 0.12) 0%,
        transparent 65%);
    animation: atmosphereGlow 4s ease-in-out infinite alternate;
}

@keyframes atmosphereGlow {
    0% {
        opacity: 0.5;
        transform: scale(1);
    }
    100% {
        opacity: 0.8;
        transform: scale(1.03);
    }
}

/* 添加一些漂浮的小粒子 */
.hero-visual::before,
.hero-visual::after {
    content: '';
    position: absolute;
    background: var(--accent-purple);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 8s ease-in-out infinite;
}

.hero-visual::before {
    width: 8px;
    height: 8px;
    top: 15%;
    left: 15%;
    animation-delay: 0s;
}

.hero-visual::after {
    width: 6px;
    height: 6px;
    top: 75%;
    right: 15%;
    animation-delay: 2s;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    25% {
        transform: translateY(-15px) translateX(8px);
    }
    50% {
        transform: translateY(-8px) translateX(-4px);
    }
    75% {
        transform: translateY(-20px) translateX(4px);
    }
}

/* ========== RESPONSIVE STYLES ========== */
/* Tablet: ease the desktop grids before they fully stack on phones */
@media (max-width: 1024px) {
    .about-horizontal-section,
    .focus-section,
    .social-section {
        padding: var(--spacing-xl) var(--spacing-xl);
    }

    /* Non-desktop: smaller text across all sections */
    .section-head-title {
        font-size: 1.05rem;
    }

    .about-card-title {
        font-size: 0.95rem;
    }

    .focus-card-title {
        font-size: 0.9rem;
    }

    /* Non-black sub-text: significantly smaller + tighter to the title */
    .about-card-desc {
        font-size: 0.72rem;
        line-height: 1.45;
    }

    .focus-card-desc {
        font-size: 0.7rem;
        line-height: 1.45;
    }

    .about-social-sub {
        font-size: 0.75rem;
    }

    .about-social-name {
        font-size: 0.8rem;
    }

    /* Pull the gray sub-text closer to the black title */
    .about-card-horizontal,
    .focus-card-small {
        gap: var(--spacing-xs);
    }

    .about-cards-horizontal {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    /* 我们关注: two rows — first row 2 cards, second row 3 cards */
    .focus-cards-grid {
        grid-template-columns: repeat(6, 1fr);
        row-gap: var(--spacing-sm);
    }

    .focus-card-small:nth-child(1),
    .focus-card-small:nth-child(2) {
        grid-column: span 3;
    }

    .focus-card-small:nth-child(n+3) {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .about-horizontal-section,
    .focus-section,
    .social-section {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

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

    .section-head-title {
        font-size: 1rem;
    }

    .about-social-grid {
        grid-template-columns: repeat(2, minmax(0, 120px));
        gap: var(--spacing-lg);
    }

    .about-cards-horizontal {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .about-card-horizontal {
        padding: var(--spacing-sm) var(--spacing-xs);
    }

    .advertise-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .advertise-column {
        padding: var(--spacing-md);
        min-height: 240px;
    }

    .advertise-column-title {
        font-size: 1rem;
    }

    .advertise-advantage-label {
        font-size: 0.875rem;
    }

    .advertise-advantage-value {
        font-size: 0.8125rem;
    }

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

    .cta-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer-center,
    .footer-right {
        justify-content: center;
    }

    /* Hero responsive */
    .hero-modern-section {
        min-height: clamp(680px, 82svh, 860px);
        padding: clamp(112px, 14vw, 144px) clamp(24px, 5vw, 48px) clamp(64px, 8vw, 88px);
    }

    .hero-modern-container {
        width: min(100%, 760px);
    }

    .hero-logo-img {
        width: clamp(180px, 27vw, 264px);
    }

    .hero-badge {
        font-size: clamp(1.25rem, 2.8vw, 1.625rem);
    }

    .hero-modern-description {
        max-width: min(34rem, 78vw);
    }

    .hero-stats-grid {
        width: min(100%, clamp(560px, 78vw, 760px));
        gap: clamp(16px, 3vw, 32px);
        padding: clamp(20px, 3.2vw, 32px);
        margin: clamp(28px, 4vw, 48px) auto;
    }

    .hero-float-1,
    .hero-float-2,
    .hero-float-3 {
        display: none;
    }
}

@media (max-width: 768px) {
    .stats-horizontal-container {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .stats-divider-horizontal {
        display: none;
    }

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

    .cooperation-steps {
        grid-template-columns: 1fr;
    }

    /* 广告合作在移动端保持横向但更紧凑 */
    .advertise-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
    }

    .advertise-column {
        padding: var(--spacing-sm);
        min-height: 200px;
    }

    .advertise-column-title {
        font-size: 0.9375rem;
        margin-bottom: var(--spacing-md);
    }

    .advertise-advantage-label {
        font-size: 0.8125rem;
    }

    .advertise-advantage-value {
        font-size: 0.75rem;
        line-height: 1.4;
    }

    /* Hero mobile优化 */
    .hero-modern-section {
        min-height: max(720px, 100svh);
        padding: clamp(96px, 18vw, 120px) clamp(16px, 5vw, 24px) clamp(48px, 9vw, 64px);
        align-items: flex-start;
    }

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

    .hero-logo-img {
        width: clamp(152px, 50vw, 206px);
    }

    .hero-badge {
        font-size: clamp(1.125rem, 5vw, 1.375rem);
        margin-bottom: var(--spacing-md);
    }

    .hero-modern-description {
        max-width: min(24rem, 86vw);
        margin-bottom: var(--spacing-2xl);
    }

    .hero-stats-grid {
        flex-direction: column;
        width: min(100%, clamp(288px, 82vw, 380px));
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        margin: var(--spacing-2xl) auto;
        border-radius: var(--radius-lg);
    }

    .hero-stat-divider {
        width: 100%;
        height: 1px;
        background: linear-gradient(90deg, transparent 0%, rgba(181, 168, 224, 0.3) 50%, transparent 100%);
    }

    .hero-modern-cta {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .hero-modern-btn-primary,
    .hero-modern-btn-secondary {
        width: auto;
        min-width: 180px;
        max-width: 260px;
        min-height: 48px;
        justify-content: center;
    }
}

@media (max-width: 420px) {
    body.brand-page,
    .brand-page .landing-container {
        background-size: 24px 24px;
    }

    .brand-page .hero-modern-section {
        background-size: 24px 24px, 24px 24px, auto;
    }

    .brand-page .top-nav {
        min-height: 56px;
    }

    .hero-modern-section {
        padding-right: var(--spacing-md);
        padding-left: var(--spacing-md);
    }

    .hero-modern-container {
        width: 100%;
    }

    .hero-stats-grid {
        width: 100%;
    }
}