/* Reset and Base Styles */
* {
    margin: 3px;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-yellow: #FFD700;
    --primary-yellow-dark: #FFA500;
    --primary-yellow-light: #FFF8DC;
    --bg-dark: #0A0A0A;
    --bg-darker: #050505;
    --bg-gray: #1A1A1A;
    --bg-gray-light: #2A2A2A;
    --text-white: #FFFFFF;
    --text-gray: #B0B0B0;
    --text-gray-light: #E0E0E0;
    --border-gray: #333333;
    --gradient-primary: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --gradient-bg: linear-gradient(135deg, #0A0A0A 0%, #1A1A1A 100%);
    --shadow-glow: 0 0 20px rgba(255, 215, 0, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.3);
    backdrop-filter: blur(20px);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 111px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    color: var(--primary-yellow);
    text-decoration: none;
    font-weight: 300; /* thinner */
    font-size: 2.3rem; /* restored to normal size */
    letter-spacing: -0.09em;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-yellow-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-login {
    background: transparent;
    border: none;
    color: var(--text-white);
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-login:hover {
    background: rgba(255, 215, 0, 0.1);
    color: var(--primary-yellow);
}

.nav-signup {
    background: var(--primary-yellow);
    border: 2px solid var(--primary-yellow);
    color: var(--bg-dark);
    font-weight: 500; /* thinner */
    font-size: 0.9rem; /* restored to normal size */
    padding: 0.5rem 1.25rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-signup:hover {
    background: transparent;
    color: var(--primary-yellow);
    transform: translateY(-1px);
}

.nav-icons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-icon {
    background: transparent;
    border: none;
    color: var(--text-gray);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-icon:hover {
    color: var(--primary-yellow);
    background: rgba(255, 215, 0, 0.1);
}

/* Language icon should inherit theme color */
.nav-icon-lang {
    color: var(--primary-yellow);
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-icon-lang:hover {
    color: var(--primary-yellow-light);
    transform: scale(1.1);
}

.nav-icon-lang svg {
    width: 22px;
    height: 22px;
    display: block;
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger-menu span {
    width: 25px;
    height: 2px;
    background: var(--primary-yellow);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Language Selector Modal */
.language-modal .modal-content {
    max-width: 400px;
}

.language-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.language-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-gray);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-white);
    font-family: inherit;
    font-size: 1rem;
    text-align: left;
    width: 100%;
}

.language-option:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--primary-yellow);
    transform: translateY(-1px);
}

.language-option.active {
    background: rgba(255, 215, 0, 0.2);
    border-color: var(--primary-yellow);
}

.language-option .flag {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.language-option .lang-name {
    font-weight: 500;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 8rem 0 4rem;
    background: var(--bg-dark);
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    z-index: 2;
}



      .hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -0.104em;
    color: var(--primary-yellow);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.3));
}

.highlight {
    color: var(--primary-yellow);
    text-shadow: 0 0 40px rgba(255, 215, 0, 1), 0 0 80px rgba(255, 215, 0, 0.6);
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.8));
    position: relative;
    font-size: 1.1em;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 820%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: glow-pulse 3s ease-in-out infinite;
}

.hero-subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    line-height: 1.2;
    font-weight: 380;
    letter-spacing: -0.06em;
}

.highlight-text {
    color: var(--primary-yellow);
    font-weight: 600;
}

.hero-signup {
    margin-bottom: 3rem;
}

.signup-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    position: relative;
}

.signup-input {
    flex: 1;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    color: var(--text-white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.signup-input:focus {
    outline: none;
    border-color: var(--primary-yellow);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.signup-input::placeholder {
    color: var(--text-gray);
}

.signup-btn {
    background: var(--text-white);
    border: none;
    color: var(--bg-dark);
    font-weight: 400; /* match navbar links */
    font-size: 1.15rem; /* increased */
    padding: 1.1rem 2.2rem; /* slightly larger for balance */
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

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

.signup-alternatives {
    text-align: center;
}

.alternative-text {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
    letter-spacing: -0.06em;
}

.alternative-buttons {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.alt-btn {
    width: 48px;
    height: 48px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    color: var(--text-white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alt-btn:hover {
    border-color: var(--primary-yellow);
    background: rgba(255, 215, 0, 0.1);
    transform: translateY(-2px);
}

/* Hero Panels */
.hero-visual {
        position: relative;
        width: 100%;
        height: 520px;
        display: flex;
        align-items: flex-end;
        justify-content: center;
    }
    
    @media (max-width: 768px) {
        .hero-visual {
            display: none;
        }
    }

.hero-gif {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    filter: brightness(0.9) contrast(1.1);
}

.panels-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1rem;
}

.info-panel {
    background: rgba(24, 24, 24, 0.5);
    border: 1px solid var(--border-yellow);
    border-radius: 34px;
    padding: 1.275rem; /* more compact */
    backdrop-filter: blur(17px);
    transition: all 0.3s ease;
    height: fit-content; /* prevent excessive height */
}

.info-panel:hover {
    border-color: var(--primary-gray);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.1);
    transform: translateY(-2px);
}

.panel-header {
    margin-bottom: 0.5rem; /* compact */
}

.panel-title {
    color: var(--primary-yellow);
    font-weight: 400;
    font-size: 1.4rem; /* compact */
    letter-spacing: -0.06em;
}

.panel-content {
    display: flex;
    flex-direction: column;
    gap: 0.3rem; /* more compact */
}

.panel-value {
    font-size: 2.5rem; /* compact */
    font-weight: 500;
    color: var(--text-white);
    line-height: 0.9;
}

.panel-label {
    color: var(--text-gray);
    font-size: 0.85rem; /* compact */
    font-weight: 500;
    letter-spacing: -0.06em;
}

.panel-link {
    color: var(--primary-yellow);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.3s ease;
}

.panel-link:hover {
    color: var(--primary-yellow-light);
}

.panel-avatars {
    display: flex;
    gap: -0.5rem;
    margin-top: 0.25rem; /* compact */
}

.avatar {
    width: 28px; /* compact */
    height: 28px; /* compact */
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    border: 2px solid var(--bg-dark);
    margin-left: -8px;
}

.avatar:first-child {
    margin-left: 0;
}

/* Service List */
.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem; /* compact */
    margin-bottom: 0.5rem; /* compact */
}

.service-item {
    display: flex;
    align-items: center;
    gap: 0.5rem; /* compact */
    padding: 0.25rem 0; /* compact */
}

.service-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.service-name {
    flex: 1;
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.9rem;
}

.service-price {
    color: var(--text-gray);
    font-size: 0.8rem; /* compact */
    font-weight: 500;
    margin-right: 0.5rem;
}

.service-change {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}

.service-change.positive {
    color: #00ff88;
    background: rgba(0, 255, 136, 0.1);
}

/* Stats Section - 独立的panels区域 */
.stats-section {
    position: relative;
    padding: 4rem 0;
    background: transparent;
    border: none;
    min-height: 50vh; /* 确保有足够高度显示动画 */
    overflow: visible; /* 允许动画溢出 */
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.stats-section .panels-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1rem;
}

/* Background Elements */
.bg-flowing-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0; /* 降低层级，让panels显示在上方 */
}

.bg-flowing-lines::before,
.bg-flowing-lines::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 200px;
    background: linear-gradient(180deg, transparent, var(--primary-yellow), transparent);
    opacity: 0.6;
    animation: flowing-line 8s linear infinite;
}

.bg-flowing-lines::before {
    top: -200px;
    left: 20%;
    animation-delay: 0s;
}

.bg-flowing-lines::after {
    top: -200px;
    right: 30%;
    animation-delay: 4s;
}

@keyframes flowing-line {
    0% { transform: translateY(0px); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(calc(100vh + 200px)); opacity: 0; }
}

.bg-glow-effects {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.bg-glow-effects::before,
.bg-glow-effects::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    animation: glow-pulse 6s ease-in-out infinite;
}

.bg-glow-effects::before {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.bg-glow-effects::after {
    bottom: 30%;
    left: 15%;
    animation-delay: 3s;
}

@keyframes glow-pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.2); opacity: 0.6; }
}

/* Interactive Background Elements */
.bg-interactive-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.interactive-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-yellow);
    border-radius: 50%;
    opacity: 0;
    animation: particle-appear 2s ease-out forwards;
}

@keyframes particle-appear {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.5);
    }
}

.bg-mouse-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
    transform: translate(-50%, -50%);
}

.bg-mouse-glow.active {
    opacity: 1;
}

.bg-cursor-trail {
    position: fixed;
    pointer-events: none;
    z-index: 1;
}

.trail-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-yellow);
    border-radius: 50%;
    opacity: 0.8;
    animation: trail-fade 1s ease-out forwards;
}

@keyframes trail-fade {
    0% {
        opacity: 0.8;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.3);
    }
}

/* Enhanced hover effects for panels */
.info-panel {
    position: relative;
    overflow: hidden;
}

.info-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 0.6s ease;
}

.info-panel:hover::before {
    left: 100%;
}

/* Floating animation for panels */
.info-panel:nth-child(1) {
    animation: float-panel 6s ease-in-out infinite;
}

.info-panel:nth-child(2) {
    animation: float-panel 6s ease-in-out infinite 2s;
}

.info-panel:nth-child(3) {
    animation: float-panel 6s ease-in-out infinite 4s;
}

@keyframes float-panel {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Enhanced signup form interactions */
.signup-form {
    position: relative;
}

.signup-form::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 215, 0, 0.05), transparent);
    border-radius: 12px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.signup-form:hover::after {
    opacity: 1;
}

/* Service item hover effects */
.service-item {
    position: relative;
    transition: all 0.3s ease;
}

.service-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: rgba(255, 215, 0, 0.1);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.service-item:hover::before {
    width: 100%;
}

.service-item:hover {
    transform: translateX(5px);
}

/* Avatar hover effects */
.avatar {
    transition: all 0.3s ease;
    cursor: pointer;
}

.avatar:hover {
    transform: scale(1.2) rotate(10deg);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-gray);
    border: 1px solid var(--border-gray);
    border-radius: 20px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-card);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-gray);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

.wallet-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.wallet-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-gray-light);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-white);
    font-size: 1rem;
    font-weight: 500;
}

.wallet-option:hover {
    border-color: var(--primary-yellow);
    background: rgba(255, 215, 0, 0.1);
    transform: translateY(-2px);
}

.wallet-icon {
    font-size: 1.5rem;
}

.wallet-name {
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .panels-overlay {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .hamburger-menu {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100vw; /* 完全隐藏在屏幕右侧 */
        width: 85%; /* 增加宽度比例 */
        max-width: 280px; /* 减小最大宽度 */
        height: 100vh;
        background: var(--bg-dark);
        backdrop-filter: blur(10px);
        border-left: 1px solid var(--border-gray);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 3rem 0.75rem 1rem; /* 减小内边距 */
        gap: 1rem; /* 减小间距 */
        transition: right 0.3s ease;
        z-index: 1000;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        display: block;
        font-size: 2.8rem;
        letter-spacing: -0.09em;
        padding: 0.75rem 0;
        width: 100%;
        border-bottom: 1px solid var(--border-gray);
    }
    
    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
        margin-top: 1rem;
    }
    
    .nav-signup {
        width: 100%;
        padding: 0.75rem;
        font-size: 1.1rem;
    }
    
    .nav-icons {
        display: flex;
        justify-content: center;
        width: 100%;
        margin-top: 1rem;
    }
    
    .nav-icon-lang svg {
        width: 48px;
        height: 48px;
    }
    
    .hero {
        padding: 10rem 0 2rem; /* 平板端顶部间距 */
    }
    
    .hero-container {
        padding: 0 1rem;
        gap: 2rem;
    }
    

    
    /* 移动端显示panel.gif */
    .hero-mobile-gif {
        display: block !important;
        width: 100%;
        max-width: 300px;
        height: auto;
        margin: 0 auto 2rem auto;
        border-radius: 12px;
    }

    .hero-title {
        font-size: 3.2rem;
        line-height: 0.95;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .signup-form {
        flex-direction: column;
        gap: 1rem;
    }
    
    .signup-btn {
        width: 100%;
    }
    
    /* 隐藏桌面端hero-visual，避免重复显示 */
    .hero-visual {
        display: none;
    }
    
    .panels-overlay,
    .stats-section .panels-overlay {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-list {
        gap: 0.5rem;
    }
    
    .service-item {
        padding: 0.25rem 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 0.5rem;
    }
    
    .navbar {
        padding: 0.5rem 0; /* 减少导航栏高度 */
    }
    
    .logo-icon {
        width: 115px; /* 手机端logo再缩小15% */
        height: 32px;
    }
    
    .nav-signup {
        padding: 1.6rem 0.8rem;
        font-size: 1.85rem;
        letter-spacing: -0.09em;
    }
    
    .nav-icon-lang svg {
        width: 36px; /* 放大语言图标 */
        height: 36px;
    }
    
    /* 超窄屏幕适配 */
    .nav-menu {
        width: 90%; /* 更宽的占比 */
        max-width: 250px; /* 更小的最大宽度 */
        padding: 2.5rem 0.5rem 1rem; /* 进一步减小内边距 */
    }
    
    .nav-link {
        font-size: 2.4rem; /* 减小字体大小 */
        padding: 0.5rem 0;
    }
    
    .nav-actions {
        gap: 0.75rem;
    }
    
    .nav-signup {
        font-size: 1.6rem;
        padding: 1.2rem 0.6rem;
    }
    
    .nav-icon-lang svg {
        width: 32px;
        height: 32px;
    }
    
    .hero {
        padding: 4rem 0 1rem; /* 手机端顶部间距 */
    }
    
    .hero-container {
        padding: 0 0.5rem;
    }
    
    /* 移动端显示panel.gif */
    .hero-mobile-gif {
        display: block !important;
        width: 100%;
        max-width: 300px;
        height: auto;
        margin: 0 auto -0.5rem auto;
        border-radius: 10px;
    }

    .hero-title {
        font-size: 3.2rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .signup-input {
        padding: 0.875rem 1rem;
        font-size: 0.95rem;
    }
    
    .signup-btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .alt-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .info-panel {
        padding: 1rem;
    }
    
    .panel-value {
        font-size: 1.5rem;
    }
    
    .service-item {
        gap: 0.5rem;
    }
    
    .service-name {
        font-size: 0.85rem;
    }
    
    .service-price {
        font-size: 0.8rem;
    }
    
    .service-change {
        font-size: 0.75rem;
    }
    
    /* 480px断点独立panels样式 */
    .panels-overlay,
    .stats-section .panels-overlay {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}