:root {
    --bg-color: #ffffff;
    --text-color: #111111;
    --text-light: #666666;
    --accent-color: rgb(18, 62, 97);
    --accent-hover: rgb(28, 76, 115);
    --gray-light: #f5f5f5;
    --border-color: #e5e5e5;
    --font-heading: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
    --font-main: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
    --container-width: 1000px;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.container-wide {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 60px;
}

/* Header */
.site-header {
    padding: 40px 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.logo {
    font-family: var(--font-heading);
    color: var(--accent-color);
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.site-header nav a {
    margin-left: 32px;
    font-size: 0.95rem;
    color: var(--text-light);
}

.site-header nav a:hover,
.site-header nav a.active {
    color: var(--accent-color);
}

/* Hero */
.hero {
    padding: 80px 0 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 1120px;
}

.hero-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.hero-intro {
    max-width: 760px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin: 0 auto 40px;
    max-width: 600px;
    font-weight: 400;
    
    /* Gradient Flow Diffusion Effect */
    background: linear-gradient(
        to right, 
        #123e61 0%, 
        #2c7cb5 25%, 
        #5e478d 50%, 
        #2c7cb5 75%, 
        #123e61 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glow-flow 8s linear infinite;
    filter: drop-shadow(0 0 12px rgba(44, 124, 181, 0.25));
}

@keyframes glow-flow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 24px;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(18, 62, 97, 0.08);
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 600;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.hero-actions .btn {
    min-width: 140px;
}

.download-hub {
    width: 100%;
    max-width: 1040px;
    padding: 28px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(17, 17, 17, 0.08);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
    text-align: left;
}

.download-header {
    margin-bottom: 20px;
}

.download-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    line-height: 1.2;
    margin-bottom: 8px;
}

.download-header p {
    color: var(--text-light);
    font-size: 1rem;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.download-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 280px;
    padding: 22px;
    border-radius: 18px;
    border: 1px solid rgba(17, 17, 17, 0.08);
    background: #ffffff;
}

.download-card.featured {
    border-color: rgba(18, 62, 97, 0.18);
    box-shadow: 0 10px 24px rgba(18, 62, 97, 0.08);
}

.download-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.download-platform {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--gray-light);
    color: var(--text-color);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.download-version {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-light);
    margin-right: auto;
}

.download-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(18, 62, 97, 0.1);
    color: var(--accent-color);
    font-size: 0.78rem;
    font-weight: 700;
}

.download-badge.muted {
    background: rgba(17, 17, 17, 0.06);
    color: var(--text-light);
}

.download-badge.mac {
    background: rgba(22, 163, 74, 0.12);
    color: #15803d;
}

.download-badge.beta {
    background: rgba(245, 158, 11, 0.12);
    color: #b45309;
}

.download-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    line-height: 1.2;
}

.download-card p {
    color: var(--text-light);
    font-size: 0.98rem;
    line-height: 1.6;
}

.download-meta {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-light);
    margin-top: auto;
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.download-actions .btn {
    width: 100%;
    text-align: center;
}

.download-note {
    margin-top: 18px;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.btn.primary {
    background-color: var(--accent-color);
    color: #fff;
}

.btn.primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn.secondary {
    background-color: var(--gray-light);
    color: var(--text-color);
}

.btn.secondary:hover {
    background-color: #e0e0e0;
}

/* Abstract Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.abstract-shape {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle at 30% 30%, #f0f0f0, #ffffff);
    border-radius: 50%;
    box-shadow: 20px 20px 60px #d9d9d9, -20px -20px 60px #ffffff;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(5deg);
    }

    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    background-color: #ffffff;
}

.testimonial-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
}

.testimonial-card {
    flex: 1 1 300px;
    max-width: 350px;
    padding: 32px;
    background-color: var(--gray-light);
    border-radius: 16px;
    position: relative;
    transition: transform 0.2s ease;
}

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

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}

.avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.user-info h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 2px;
}

.user-info span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.testimonial-text {
    font-size: 1rem;
    color: var(--text-color);
    line-height: 1.6;
    font-style: italic;
}

/* Features */
.features {
    padding: 100px 0;
    background-color: #fafafa;
}

.section-title {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 48px;
    color: var(--text-color);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.feature-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 24px;
}

.feature-card {
    flex: 0 0 260px;
    max-width: 320px;
    text-align: center;
    padding: 32px 24px;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(18, 62, 97, 0.1);
    border-color: var(--accent-color);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Footer */
footer {
    padding: 60px 0;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

.landing-links {
    padding: 90px 0;
    background: #fff;
}

.landing-intro {
    max-width: 760px;
    margin: 0 auto 40px;
    text-align: center;
}

.landing-intro p {
    color: var(--text-light);
    font-size: 1rem;
}

.landing-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.landing-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 28px;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: #fff;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.landing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(18, 62, 97, 0.25);
    box-shadow: 0 16px 40px rgba(18, 62, 97, 0.08);
}

.landing-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    line-height: 1.2;
}

.landing-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.landing-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.landing-chip {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(18, 62, 97, 0.08);
    color: var(--accent-color);
    font-size: 0.82rem;
    font-weight: 600;
}

.landing-link {
    margin-top: auto;
    color: var(--accent-color);
    font-weight: 600;
}

.landing-page {
    padding: 90px 0;
}

.landing-page .hero-copy {
    max-width: 760px;
    margin-bottom: 28px;
}

.landing-page .hero-copy h1 {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    line-height: 1.08;
    margin-bottom: 18px;
}

.landing-page .hero-copy p {
    color: var(--text-light);
    font-size: 1.08rem;
    line-height: 1.8;
}

.landing-page .hero-copy p + p {
    margin-top: 12px;
}

.landing-highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 28px 0 40px;
}

.landing-highlight {
    padding: 18px 20px;
    background: #fafafa;
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.landing-highlight strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
}

.landing-highlight span {
    color: var(--text-light);
    font-size: 0.95rem;
}

.landing-sections {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
}

.landing-block {
    padding: 26px;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: #fff;
}

.landing-block h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 14px;
}

.landing-block p {
    color: var(--text-light);
    line-height: 1.8;
}

.landing-block ul {
    list-style: disc;
    margin-left: 20px;
    color: var(--text-light);
}

.landing-block li + li {
    margin-top: 10px;
}

.landing-block a {
    color: var(--accent-color);
}


/* Changelog Styles */
.changelog-section {
    padding: 80px 0;
}

.version-item {
    margin-bottom: 60px;
    border-left: 2px solid var(--accent-color);
    padding-left: 24px;
}

.version-header {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 16px;
}

.version-tag {
    background: var(--accent-color);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.version-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.version-links {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.version-links a {
    color: var(--accent-color);
    text-decoration: underline;
}

.version-links-sep {
    opacity: 0.6;
}

.change-list {
    padding-left: 20px;
}

.change-list li {
    margin-bottom: 8px;
    position: relative;
    list-style-type: none;
}

.change-list li.highlight {
    background: rgba(18, 62, 97, 0.08);
    border: 1px solid rgba(18, 62, 97, 0.18);
    border-radius: 10px;
    padding: 8px 12px;
}

.change-list li.highlight::before {
    left: -18px;
}

.change-list li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: -15px;
    font-weight: bold;
}

.change-details {
    margin-top: 16px;
}

.change-details summary {
    list-style: none;
    cursor: pointer;
}

.change-details summary::-webkit-details-marker {
    display: none;
}

.change-details summary::marker {
    content: "";
}

.changelog-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 999px;
    background-color: var(--gray-light);
    color: var(--text-color);
    border: 1px solid rgba(18, 62, 97, 0.12);
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.changelog-toggle:hover {
    background-color: #e0e0e0;
    transform: translateY(-1px);
}

.changelog-toggle::after {
    content: "＋";
    font-weight: 600;
}

.change-details[open] .changelog-toggle::after {
    content: "－";
}

.change-details .toggle-close {
    display: none;
}

.change-details[open] .toggle-open {
    display: none;
}

.change-details[open] .toggle-close {
    display: inline;
}

.change-details .change-list {
    margin-top: 16px;
}

/* About Page Redesign */
.about-section {
    padding: 100px 0;
    overflow: hidden;
}

.about-layout {
    display: flex;
    align-items: center;
    gap: 80px;
    animation: fadeIn 0.8s ease-out;
}

.about-text {
    flex: 1;
}

.about-text h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    margin-bottom: 32px;
    letter-spacing: -0.03em;
    color: var(--accent-color);
}

.about-text h2 {
    font-size: 2rem;
    margin-top: 48px;
}

.about-text p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 24px;
}

.brand-story {
    background: rgba(18, 62, 97, 0.04);
    padding: 24px;
    border-radius: 16px;
    border-left: 4px solid var(--accent-color);
}

.brand-story p {
    margin-bottom: 16px;
    font-size: 1.05rem;
}

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

.about-image {
    flex: 0 0 450px;
    position: relative;
}

.floating-image {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.12);
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@media (max-width: 1000px) {
    .about-layout {
        flex-direction: column;
        gap: 60px;
        text-align: center;
    }

    .about-text h1 {
        font-size: 2.8rem;
    }

    .about-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 450px;
    }

    .brand-story {
        text-align: left;
    }
}

/* Modal Styles */
.modal-overlay {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #fff;
    width: 90%;
    max-width: 900px;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transform: translateY(20px);
    transition: transform 0.3s ease;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-family: var(--font-heading);
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-color);
}

.guide-section {
    margin-bottom: 32px;
}

.guide-section h3 {
    font-size: 1.1rem;
    color: var(--accent-color);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

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

.guide-item img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 12px;
    transition: transform 0.2s;
}

.guide-item img:hover {
    transform: scale(1.02);
}

.guide-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.4;
}

.step-badge {
    display: inline-block;
    background: var(--gray-light);
    color: var(--text-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 4px;
}

/* Mobile Responsive */
@media (max-width: 768px) {

    /* Header */
    .site-header {
        padding: 20px 0;
    }

    .site-header .container {
        flex-direction: column;
        gap: 16px;
    }

    .site-header nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .site-header nav a {
        margin-left: 0;
        font-size: 0.9rem;
        padding: 4px 8px;
    }

    /* Hero */
    .hero {
        padding: 60px 0 80px;
    }

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

    .hero-content {
        gap: 24px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .landing-page .hero-copy h1 {
        font-size: 2.4rem;
    }

    .subtitle {
        font-size: 1.1rem;
        margin: 0 auto 32px;
        line-height: 1.5;
    }

    .cta-group {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        gap: 12px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-actions .btn {
        min-width: 0;
    }

    .hero-meta {
        gap: 8px;
        margin-bottom: 20px;
    }

    .hero-pill {
        width: 100%;
    }

    .download-hub {
        padding: 20px;
        border-radius: 20px;
    }

    .download-header {
        text-align: left;
    }

    .download-header h2 {
        font-size: 1.3rem;
    }

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

    .download-card {
        min-height: 0;
        padding: 20px;
    }

    .btn {
        width: 100%;
        text-align: center;
        display: block;
    }

    /* About Page */
    .about-content {
        padding: 0 4px;
    }

    .about-content h2 {
        font-size: 2rem;
        margin-top: 30px;
    }

    .about-image-img {
        max-width: 100%;
        height: auto;
        margin: 30px auto;
    }

    /* Changelog Page */
    .changelog-section {
        padding: 40px 0;
    }

    .version-item {
        margin-bottom: 40px;
        padding-left: 16px;
    }

    .version-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .change-list {
        padding-left: 10px;
    }

    /* General Layout */
    .container {
        padding: 0 20px;
    }

    .feature-grid {
        gap: 16px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    /* Hide float animation on mobile */
    .abstract-shape {
        display: none;
    }
}

.feature-marquee {
    position: relative;
    overflow: hidden;
    padding: 8px 0 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.marquee-track {
    display: flex;
    align-items: stretch;
    gap: 24px;
    width: max-content;
    animation: feature-marquee 40s linear infinite;
}

.marquee-track.reverse {
    animation-direction: reverse;
}

@keyframes feature-marquee {
    0% {
        transform: translateX(-50%);
    }

    100% {
        transform: translateX(0%);
    }
}

/* Thanks & Acknowledge Styles */
.thanks-section {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.thanks-section h2 {
    font-size: 2rem !important;
    text-align: center;
    margin-bottom: 40px;
}

.name-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 1500px;
    margin: 0 auto;
}

.name-tag {
    background: var(--gray-light);
    color: var(--text-light);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.9rem;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.name-tag:hover {
    background: #fff;
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(18, 62, 97, 0.1);
}

.thanks-more {
    text-align: center;
    margin-top: 40px;
}

.thanks-more a {
    color: var(--accent-color);
    font-weight: 600;
    border-bottom: 2px solid rgba(18, 62, 97, 0.2);
    padding-bottom: 2px;
}

.thanks-more a:hover {
    border-color: var(--accent-color);
}

/* Sponsor Page specific */
.prominent-section {
    max-width: 1000px;
    margin: 0 auto 80px;
}

.sponsor-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin: 40px 0;
}

.tier-card {
    background: #fff;
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.tier-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.05);
    border-color: var(--accent-color);
}

.tier-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.tier-card h3 {
    margin-bottom: 12px;
    color: var(--accent-color);
}

.tier-card p {
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.sponsor-list-minimal {
    list-style: none;
    padding: 0;
    column-count: 3;
    column-gap: 40px;
}

@media (max-width: 600px) {
    .sponsor-list-minimal {
        column-count: 2;
    }
}

/* Sponsor Avatar & Name Grid */
.sponsor-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 32px;
    justify-content: center;
}

.sponsor-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--gray-light);
    padding: 8px 20px 8px 8px;
    border-radius: 50px;
    border: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.sponsor-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(18, 62, 97, 0.1);
    border-color: var(--accent-color);
    background: #fff;
}

.avatar-placeholder {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent-color), #4dabf7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 2px 6px rgba(18, 62, 97, 0.1);
    border: 2px solid white;
    font-family: var(--font-heading);
    overflow: hidden;
    flex-shrink: 0;
}

.sponsor-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: 2px solid white;
    display: block;
    flex-shrink: 0;
}

.sponsor-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-color);
    text-align: left;
    white-space: nowrap;
}

/* Branch Tab Switcher */
.branch-switcher {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.branch-tab {
    padding: 10px 24px;
    background: var(--gray-light);
    color: var(--text-light);
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    user-select: none;
}

.branch-tab.active {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(18, 62, 97, 0.2);
}

.branch-tab:hover:not(.active) {
    background: #e0e0e0;
    transform: translateY(-2px);
}

.branch-content {
    display: none;
}

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

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

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

/* Mobile Companion Alert */
.mobile-companion-alert {
    margin-top: 24px;
    padding: 24px;
    border-radius: 18px;
    background: rgba(18, 62, 97, 0.05);
    border: 1px solid rgba(18, 62, 97, 0.08);
    display: flex;
    align-items: center;
    gap: 20px;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.mobile-companion-alert:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(18, 62, 97, 0.06);
}

.alert-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.alert-content {
    font-size: 1rem;
    color: var(--text-color);
    line-height: 1.6;
}

.alert-content strong {
    color: var(--accent-color);
}

.alert-content a {
    color: var(--accent-color);
    font-weight: 600;
    margin-left: 8px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.alert-content a:hover {
    color: var(--accent-hover);
}

@media (max-width: 768px) {
    .mobile-companion-alert {
        flex-direction: column;
        text-align: center;
        padding: 24px 20px;
        gap: 12px;
    }
}