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

:root {
    --primary-color: #F0B90B;
    --primary-dark: #C99A09;
    --primary-light: #F8D12F;
    --secondary-color: #D4A017;
    --danger-color: #F85149;
    --text-primary: #E6EDF3;
    --text-secondary: #B1BAC4;
    --text-light: #7D8590;
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-tertiary: #1C2128;
    --bg-light: #1C2128;
    --bg-white: #161B22;
    --border-color: #30363D;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --gradient-primary: linear-gradient(135deg, #F0B90B 0%, #D4A017 100%);
    --gradient-secondary: linear-gradient(135deg, #F8D12F 0%, #C99A09 100%)
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale
}

.language-switch {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    max-width: 320px;
    justify-content: center;
    margin: 0 auto 30px;
    border: 1px solid var(--border-color)
}

.lang-btn {
    padding: 6px 10px;
    border: none;
    background: 0 0;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    border-radius: 12px;
    cursor: pointer;
    transition: all .3s ease;
    white-space: nowrap
}

.lang-btn:hover {
    background: rgba(240, 185, 11, .15);
    color: var(--primary-color)
}

.lang-btn.active {
    background: var(--primary-color);
    color: #0d1117;
    font-weight: 600
}

.container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px 40px
}

.header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeInDown .8s ease
}

.logo-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px
}

.logo-placeholder {
    font-size: 48px;
    animation: bounce 2s infinite
}

.app-name {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, .2)
}

.tagline {
    font-size: 18px;
    color: rgba(255, 255, 255, .9);
    font-weight: 300
}

.app-info {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeInUp .8s ease .2s both
}

.app-icon-wrapper {
    margin-bottom: 24px
}

.app-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    background: linear-gradient(135deg, #1c2128 0, #0d1117 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(240, 185, 11, .3);
    border: 3px solid rgba(240, 185, 11, .5)
}

.icon-text {
    font-size: 32px;
    font-weight: 700;
    color: #f0b90b
}

.app-title {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px
}

.version {
    font-size: 14px;
    color: rgba(255, 255, 255, .8)
}

.download-section {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp .8s ease .4s both;
    border: 1px solid var(--border-color)
}

.download-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 24px
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: all .3s ease;
    font-family: inherit
}

.download-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md)
}

.ios-btn:hover {
    border-color: #f0b90b;
    background: linear-gradient(135deg, #1c2128 0, #0d1117 100%)
}

.ios-btn:hover .btn-content,
.ios-btn:hover .btn-icon {
    color: #fff
}

.android-btn:hover {
    border-color: #f0b90b;
    background: linear-gradient(135deg, #1c2128 0, #0d1117 100%)
}

.android-btn:hover .btn-content,
.android-btn:hover .btn-icon {
    color: #fff
}

.btn-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    transition: all .3s ease
}

.btn-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    transition: all .3s ease
}

.btn-label {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: block
}

.btn-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    display: block
}

.device-hint {
    text-align: center;
    padding: 16px;
    background: rgba(240, 185, 11, .08);
    border-radius: 12px;
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    border: 1px solid rgba(240, 185, 11, .15)
}

.features {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp .8s ease .6s both;
    border: 1px solid var(--border-color)
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 32px;
    position: relative;
    padding-bottom: 16px
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px
}

.feature-card {
    text-align: center;
    padding: 24px;
    border-radius: 16px;
    background: var(--bg-light);
    transition: all .3s ease
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    background: rgba(240, 185, 11, .08);
    border: 1px solid rgba(240, 185, 11, .2)
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6
}

.steps {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp .8s ease .8s both;
    border: 1px solid var(--border-color)
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px
}

.step-item {
    flex: 1;
    min-width: 180px;
    text-align: center
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    color: #0d1117;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(240, 185, 11, .3)
}

.step-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px
}

.step-desc {
    font-size: 14px;
    color: var(--text-secondary)
}

.step-arrow {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 300
}

.faq {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp .8s ease 1s both;
    border: 1px solid var(--border-color)
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all .3s ease
}

.faq-item:hover {
    border-color: rgba(240, 185, 11, .4);
    box-shadow: var(--shadow-sm);
    background: rgba(240, 185, 11, .05)
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px
}

.faq-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: #0d1117;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0
}

.faq-answer {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 44px
}

.tools-section {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp .8s ease 1.1s both;
    border: 1px solid var(--border-color)
}

.tools-grid {
    display: flex;
    flex-direction: column;
    gap: 12px
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px 18px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all .3s ease
}

.tool-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(240, 185, 11, .2);
    transform: translateX(4px);
    background: rgba(240, 185, 11, .05)
}

.tool-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px
}

.tool-info {
    flex: 1;
    min-width: 0;
    text-align: left
}

.tool-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary)
}

.tool-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px
}

.tool-arrow {
    color: var(--text-light);
    flex-shrink: 0;
    transition: color .3s
}

.tool-item:hover .tool-arrow {
    color: var(--primary-color)
}

.footer {
    text-align: center;
    padding: 32px 0;
    color: rgba(255, 255, 255, .9);
    animation: fadeIn .8s ease 1.2s both
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px
}

.footer-link {
    color: rgba(255, 255, 255, .9);
    text-decoration: none;
    font-size: 14px;
    transition: all .3s ease
}

.footer-link:hover {
    color: #fff;
    text-decoration: underline
}

.footer-divider {
    color: rgba(255, 255, 255, .5)
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, .7)
}

@keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

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

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

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

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

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0)
    }

    50% {
        transform: translateY(-10px)
    }
}

@media (max-width:768px) {
    .container {
        padding: 15px 16px 20px
    }

    .app-name {
        font-size: 28px
    }

    .tagline {
        font-size: 16px
    }

    .app-title {
        font-size: 24px
    }

    .download-section,
    .faq,
    .features,
    .steps,
    .tools-section {
        padding: 24px 20px;
        border-radius: 16px
    }

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

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

    .steps-container {
        flex-direction: column
    }

    .step-arrow {
        transform: rotate(90deg)
    }

    .section-title {
        font-size: 20px
    }

    .language-switch {
        max-width: 260px;
        padding: 3px;
        margin-bottom: 20px
    }

    .lang-btn {
        padding: 5px 8px;
        font-size: 11px
    }

    .footer-links {
        flex-direction: column;
        gap: 8px
    }

    .footer-divider {
        display: none
    }
}

@media (max-width:480px) {
    .app-name {
        font-size: 24px
    }

    .logo-placeholder {
        font-size: 36px
    }

    .app-icon {
        width: 100px;
        height: 100px
    }

    .icon-text {
        font-size: 28px
    }

    .download-btn {
        padding: 16px 20px
    }

    .btn-icon {
        width: 40px;
        height: 40px
    }

    .btn-label {
        font-size: 16px
    }
}

.ios-install-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, .7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all .3s ease;
    padding: 20px
}

.ios-install-modal.show {
    opacity: 1;
    visibility: visible
}

.ios-install-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
    max-width: 420px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, .5);
    animation: slideUp .3s ease;
    border: 1px solid var(--border-color)
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0
    }

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

.ios-install-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all .3s ease;
    display: flex;
    align-items: center;
    justify-content: center
}

.ios-install-close:hover {
    background: rgba(240, 185, 11, .2);
    transform: rotate(90deg)
}

.ios-install-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
    padding-right: 30px
}

.ios-install-steps {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px
}

.ios-install-step {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 12px;
    background: var(--bg-light);
    border-radius: 10px;
    transition: all .3s ease
}

.ios-install-step:hover {
    background: rgba(240, 185, 11, .1);
    transform: translateX(4px)
}

.ios-step-number {
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    color: #0d1117;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0
}

.ios-install-step p {
    flex: 1;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-primary);
    margin: 0;
    padding-top: 2px
}

.ios-install-btn {
    width: 100%;
    padding: 12px 20px;
    background: var(--gradient-primary);
    color: #0d1117;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all .3s ease
}

.ios-install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(240, 185, 11, .4)
}

.ios-install-btn:active {
    transform: translateY(0)
}

.android-install-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, .7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all .3s ease;
    padding: 20px
}

.android-install-modal.show {
    opacity: 1;
    visibility: visible
}

.android-install-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 24px;
    max-width: 480px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, .5);
    animation: slideUp .3s ease;
    border: 1px solid var(--border-color)
}

.android-install-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all .3s ease;
    display: flex;
    align-items: center;
    justify-content: center
}

.android-install-close:hover {
    background: rgba(240, 185, 11, .2);
    transform: rotate(90deg)
}

.android-install-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-align: center;
    padding-right: 30px
}

.android-notice-box {
    background: rgba(240, 185, 11, .08);
    border-left: 4px solid #f0b90b;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 20px
}

.android-notice-title {
    font-size: 16px;
    font-weight: 600;
    color: #f0b90b;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px
}

.android-notice-text {
    font-size: 14px;
    line-height: 1.6;
    color: #d4a017;
    margin: 0
}

.android-install-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px
}

.android-step-item {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
    padding: 12px 16px;
    background: var(--bg-light);
    border-radius: 10px;
    border-left: 3px solid var(--primary-color);
    transition: all .3s ease
}

.android-step-item:hover {
    background: rgba(240, 185, 11, .1);
    transform: translateX(4px)
}

.android-install-btn {
    width: 100%;
    padding: 14px 20px;
    background: var(--gradient-primary);
    color: #0d1117;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all .3s ease
}

.android-install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(240, 185, 11, .4)
}

.android-install-btn:active {
    transform: translateY(0)
}

.invite-code-hint {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    z-index: 10000;
    opacity: 0;
    transition: all .3s ease;
    pointer-events: none
}

.invite-code-hint.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1
}

.invite-code-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 16px 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 90vw;
    border: 2px solid var(--primary-color)
}

.invite-code-icon {
    font-size: 32px;
    flex-shrink: 0;
    animation: bounce 2s infinite
}

.invite-code-text {
    flex: 1
}

.invite-code-main {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px
}

.invite-code-sub {
    font-size: 13px;
    color: var(--text-secondary)
}

@media (max-width:480px) {
    .invite-code-hint {
        top: 10px;
        left: 10px;
        right: 10px;
        transform: translateY(-100px)
    }

    .invite-code-hint.show {
        transform: translateY(0)
    }

    .invite-code-content {
        padding: 12px 16px;
        min-width: auto
    }

    .invite-code-icon {
        font-size: 28px
    }

    .invite-code-main {
        font-size: 14px
    }

    .invite-code-sub {
        font-size: 12px
    }
}

@media print {
    body {
        background: #0d1117
    }

    .android-install-modal,
    .download-buttons,
    .floating-contact,
    .invite-code-hint,
    .ios-install-modal,
    .language-switch {
        display: none
    }
}

.floating-contact {
    position: fixed;
    right: 24px;
    bottom: 80px;
    z-index: 9000;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    background: linear-gradient(135deg, #f0b90b 0, #c99a09 100%);
    color: #0d1117;
    border-radius: 50px;
    box-shadow: 0 6px 24px rgba(240, 185, 11, .5);
    text-decoration: none;
    cursor: pointer;
    animation: floatingBounceIn .6s cubic-bezier(.34, 1.56, .64, 1) both, floatingPulse 2s ease-in-out .6s infinite;
    transition: transform .3s ease, box-shadow .3s ease
}

.floating-contact:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(240, 185, 11, .7);
    animation: floatingBounceIn .6s cubic-bezier(.34, 1.56, .64, 1) both
}

.floating-contact-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0
}

.floating-contact-text {
    font-size: 18px;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: .5px
}

@keyframes floatingBounceIn {
    0% {
        opacity: 0;
        transform: scale(.3) translateY(40px)
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0)
    }
}

@keyframes floatingPulse {

    0%,
    100% {
        box-shadow: 0 6px 24px rgba(240, 185, 11, .5);
        transform: scale(1)
    }

    50% {
        box-shadow: 0 8px 36px rgba(240, 185, 11, .8);
        transform: scale(1.05)
    }
}

@media (max-width:480px) {
    .floating-contact {
        right: 12px;
        bottom: 60px;
        padding: 14px 22px
    }

    .floating-contact-icon {
        width: 26px;
        height: 26px
    }

    .floating-contact-text {
        font-size: 15px
    }
}

/* --- About Us Modal Styles --- */
.about-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.about-modal.show {
    opacity: 1;
    visibility: visible;
}

.about-modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    position: relative;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.about-modal.show .about-modal-content {
    transform: translateY(0);
}

.about-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.2s ease;
    z-index: 10;
}

.about-modal-close:hover {
    background: var(--danger-color);
    color: #fff;
    transform: rotate(90deg);
}

.about-modal-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
    padding-right: 30px; /* Space for close button */
}

.about-modal-body {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.about-modal-body p {
    margin-bottom: 15px;
}

.about-modal-body strong {
    color: var(--text-primary);
}

/* Mobile Full Screen Style */
@media (max-width: 768px) {
    .about-modal-content {
        width: 100%;
        height: 100%;
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        border: none;
        padding: 20px 20px 40px 20px;
    }
    
    .about-modal-title {
        font-size: 20px;
        margin-top: 10px;
    }
}