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

:root {
    --primary-blue: #0ea5e9;
    --deep-blue: #0a1628;
    --accent-blue: #38bdf8;
    --silver-gray: #94a3b8;
    --dark-silver: #64748b;
    --light-silver: #cbd5e1;
    --glass-bg: rgba(15, 23, 42, 0.85);
    --glass-border: rgba(148, 163, 184, 0.2);
    --glow-blue: rgba(14, 165, 233, 0.5);
    --glow-silver: rgba(148, 163, 184, 0.3);
}

html, body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--deep-blue);
    color: var(--light-silver);
    line-height: 1.6;
}

.app-container {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.background-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 50%, #0d2137 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

.gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(56, 189, 248, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(148, 163, 184, 0.05) 0%, transparent 70%);
    animation: pulseGlow 8s ease-in-out infinite;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 50%;
    opacity: 0.6;
    animation: floatParticle 20s linear infinite;
    box-shadow: 0 0 10px var(--glow-blue);
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

.card-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
    min-height: 100vh;
    padding-bottom: 100px;
}

.digital-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(148, 163, 184, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
    animation: cardEntrance 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.digital-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    opacity: 0.5;
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.card-header {
    position: relative;
    padding: 30px 20px 20px;
    text-align: center;
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.1) 0%, transparent 100%);
}

.avatar-container {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.avatar-container:hover {
    transform: scale(1.05);
}

.avatar-container:hover .avatar-ring {
    animation: ringPulse 1s ease infinite;
}

@keyframes ringPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 var(--glow-blue), 0 0 20px var(--glow-blue);
    }
    50% {
        box-shadow: 0 0 0 15px transparent, 0 0 30px var(--glow-blue);
    }
}

.avatar-ring {
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue), var(--silver-gray));
    background-size: 200% 200%;
    animation: ringGradient 3s ease infinite;
    box-shadow: 0 0 20px var(--glow-blue);
}

@keyframes ringGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.avatar-placeholder,
.avatar-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--deep-blue);
}

.avatar-placeholder svg {
    width: 50%;
    height: 50%;
    color: var(--silver-gray);
}

.avatar-upload-hint {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--silver-gray);
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
}

.avatar-container:hover .avatar-upload-hint {
    opacity: 1;
}

.company-logo-container {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 50px;
    height: 50px;
    cursor: move;
    transition: transform 0.3s ease;
}

.company-logo-container:hover {
    transform: scale(1.1);
}

.logo-placeholder,
.company-logo {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px dashed var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    object-fit: contain;
    padding: 8px;
}

.logo-placeholder svg {
    width: 60%;
    height: 60%;
    color: var(--silver-gray);
}

.card-body {
    padding: 20px;
}

.user-info {
    text-align: center;
    margin-bottom: 25px;
}

.user-name {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    text-shadow: 0 2px 10px rgba(14, 165, 233, 0.3);
    outline: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.user-name:focus {
    border-bottom-color: var(--primary-blue);
}

.user-title {
    font-size: 16px;
    color: var(--accent-blue);
    margin-bottom: 5px;
    outline: none;
}

.user-company {
    font-size: 14px;
    color: var(--silver-gray);
    outline: none;
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(56, 189, 248, 0.1) 100%);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 16px;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.contact-btn:hover::before {
    left: 100%;
}

.contact-btn:hover {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.25) 0%, rgba(56, 189, 248, 0.2) 100%);
    border-color: var(--primary-blue);
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(14, 165, 233, 0.3);
}

.contact-btn:active {
    transform: translateX(5px) scale(0.98);
}

.btn-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-icon svg {
    width: 22px;
    height: 22px;
    color: #fff;
}

.btn-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.company-intro {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 25px;
    border: 1px solid var(--glass-border);
}

.intro-title {
    font-size: 16px;
    color: var(--accent-blue);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.intro-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, var(--primary-blue), var(--accent-blue));
    border-radius: 2px;
}

.intro-content {
    font-size: 14px;
    color: var(--light-silver);
    line-height: 1.8;
    min-height: 80px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    outline: none;
    border: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.intro-content:focus {
    border-color: var(--primary-blue);
}

.intro-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.intro-btn {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.save-btn {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    color: #fff;
}

.save-btn:hover {
    box-shadow: 0 5px 15px rgba(14, 165, 233, 0.4);
    transform: translateY(-2px);
}

.undo-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--silver-gray);
    border: 1px solid var(--glass-border);
}

.undo-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.video-section {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--glass-border);
}

.video-title {
    font-size: 16px;
    color: var(--accent-blue);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.video-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, var(--primary-blue), var(--accent-blue));
    border-radius: 2px;
}

.video-upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-upload-area:hover {
    border-color: var(--primary-blue);
    background: rgba(14, 165, 233, 0.05);
}

.upload-placeholder svg {
    width: 48px;
    height: 48px;
    color: var(--silver-gray);
    margin-bottom: 10px;
}

.upload-placeholder p {
    color: var(--silver-gray);
    font-size: 14px;
}

.upload-tip {
    display: block;
    color: var(--dark-silver);
    font-size: 12px;
    margin-top: 8px;
}

.upload-progress {
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px dashed var(--glass-border);
    border-radius: 16px;
    text-align: center;
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    color: var(--accent-blue);
    font-size: 14px;
    font-weight: 500;
}

.video-preview {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}

.video-preview video {
    width: 100%;
    display: block;
    border-radius: 12px;
}

.remove-video-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.remove-video-btn:hover {
    background: #ef4444;
    transform: scale(1.1);
}

.card-footer {
    padding: 20px;
    border-top: 1px solid var(--glass-border);
    background: linear-gradient(180deg, transparent, rgba(14, 165, 233, 0.05));
}

.action-buttons {
    display: flex;
    gap: 12px;
}

.action-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    color: var(--light-silver);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn svg {
    width: 24px;
    height: 24px;
}

.action-btn:hover {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.2) 0%, rgba(56, 189, 248, 0.15) 100%);
    border-color: var(--primary-blue);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.2);
}

.share-btn:hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(52, 211, 153, 0.15) 100%);
    border-color: #10b981;
}

.edit-btn:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(251, 191, 36, 0.15) 100%);
    border-color: #f59e0b;
}

.toolbar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    padding: 12px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 100;
    animation: toolbarEntrance 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

@keyframes toolbarEntrance {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.toolbar-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    background: transparent;
    border: none;
    color: var(--silver-gray);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 12px;
}

.toolbar-btn svg {
    width: 24px;
    height: 24px;
}

.toolbar-btn:hover {
    color: var(--accent-blue);
    background: rgba(14, 165, 233, 0.1);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
    animation: modalFadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    width: 100%;
    max-width: 400px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 80vh;
    overflow-y: auto;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 18px;
    color: #fff;
    font-weight: 600;
}

.close-btn {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--silver-gray);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.modal-body {
    padding: 20px;
}

.bg-options {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.bg-option-group h3 {
    font-size: 14px;
    color: var(--silver-gray);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gradient-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.gradient-option {
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid transparent;
}

.gradient-option:hover {
    transform: scale(1.05);
    border-color: var(--primary-blue);
}

.gradient-preview {
    height: 60px;
    border-radius: 8px;
}

.gradient-option span {
    display: block;
    text-align: center;
    font-size: 11px;
    color: var(--silver-gray);
    margin-top: 6px;
}

.custom-bg-upload {
    display: flex;
    justify-content: center;
}

.upload-bg-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-bg-btn svg {
    width: 20px;
    height: 20px;
}

.upload-bg-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.4);
}

.email-form,
.phone-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    color: var(--silver-gray);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-blue);
    background: rgba(14, 165, 233, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--dark-silver);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.send-email-btn,
.call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    flex: 1;
}

.send-email-btn svg,
.call-btn svg {
    width: 20px;
    height: 20px;
}

.send-email-btn:hover,
.call-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.4);
}

.form-actions {
    display: flex;
    gap: 12px;
}

.save-form-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--light-silver);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    flex: 1;
}

.save-form-btn svg {
    width: 20px;
    height: 20px;
}

.save-form-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-blue);
    color: #fff;
    transform: translateY(-2px);
}

.share-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.share-tip-box {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 20px;
    text-align: center;
}

.share-tip-box p {
    color: var(--light-silver);
    font-size: 13px;
    margin: 0;
}

.share-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-option:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.08);
}

.share-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.share-icon svg {
    width: 26px;
    height: 26px;
    color: #fff;
}

.share-icon.wechat {
    background: linear-gradient(135deg, #07c160, #00a854);
}

.share-icon.moments {
    background: linear-gradient(135deg, #07c160, #00a854);
}

.share-icon.weibo {
    background: linear-gradient(135deg, #e6162d, #ff5722);
}

.share-icon.xiaohongshu {
    background: linear-gradient(135deg, #ff2442, #ff6b6b);
}

.share-icon.link {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
}

.share-icon.save {
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
}

.share-option span {
    font-size: 13px;
    color: var(--light-silver);
    font-weight: 500;
}

.share-option small {
    font-size: 11px;
    color: var(--dark-silver);
    margin-top: -4px;
}

.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 14px 24px;
    background: rgba(16, 185, 129, 0.95);
    color: #fff;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 2000;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    background: rgba(239, 68, 68, 0.95);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.3);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 3000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 480px) {
    .card-wrapper {
        padding: 10px;
    }

    .digital-card {
        border-radius: 20px;
    }

    .card-header {
        padding: 20px 15px 15px;
    }

    .avatar-container {
        width: 100px;
        height: 100px;
    }

    .user-name {
        font-size: 24px;
    }

    .contact-btn {
        padding: 14px 16px;
    }

    .toolbar {
        padding: 10px 16px;
        bottom: 15px;
    }

    .toolbar-btn {
        padding: 8px 12px;
    }

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

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

@keyframes shareAnimation {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.share-animation {
    animation: shareAnimation 0.5s ease;
}

@keyframes vibrate {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

.vibrate {
    animation: vibrate 0.3s ease;
}

.glow-effect {
    box-shadow: 0 0 30px var(--glow-blue), 0 0 60px var(--glow-blue);
}

.wechat-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.qrcode-upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.qrcode-upload-area:hover {
    border-color: var(--primary-blue);
    background: rgba(14, 165, 233, 0.05);
}

.qrcode-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.qrcode-placeholder svg {
    width: 64px;
    height: 64px;
    color: var(--silver-gray);
    margin-bottom: 10px;
}

.qrcode-placeholder p {
    color: var(--silver-gray);
    font-size: 14px;
}

.qrcode-image {
    max-width: 100%;
    width: auto;
    height: auto;
    max-height: 300px;
    border-radius: 8px;
    object-fit: contain;
}

.copy-wechat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: linear-gradient(135deg, #07c160, #00a854);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.copy-wechat-btn svg {
    width: 20px;
    height: 20px;
}

.copy-wechat-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(7, 193, 96, 0.4);
}

.qrcode-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.qrcode-container {
    background: #fff;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.qrcode-container img {
    display: block;
}

.qrcode-tip {
    margin-top: 16px;
    color: var(--silver-gray);
    font-size: 14px;
    text-align: center;
}

.qrcode-actions {
    display: flex;
    justify-content: center;
    padding: 0 20px 20px;
}

.qrcode-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.qrcode-action-btn svg {
    width: 20px;
    height: 20px;
}

.qrcode-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.4);
}