:root {
    --bg-color: #0f1115;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --success: #10b981;
    --danger: #ef4444;
    --input-bg: rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 0;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
}

/* 炫酷流光背景 */
.background {
    position: absolute;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
}

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99,102,241,0.4) 0%, rgba(0,0,0,0) 70%);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(236,72,153,0.3) 0%, rgba(0,0,0,0) 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.2); }
}

.container {
    width: 100%;
    max-width: 480px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* 玻璃拟物卡片 */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
    animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUpFade {
    0% { opacity: 0; transform: translateY(30px) scale(0.95); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

.logo, .success-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.logo svg {
    color: var(--accent);
}

h1 {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(to right, #fff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

/* 表单与输入框 */
.input-group {
    margin-bottom: 24px;
}

input {
    width: 100%;
    padding: 16px 20px;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
    outline: none;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
    background: rgba(0,0,0,0.4);
}

input::placeholder {
    color: rgba(255,255,255,0.3);
}

/* 按钮样式 */
.btn {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.primary-btn {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.primary-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.23);
}

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

.secondary-btn {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.secondary-btn:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

.outline-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.outline-btn:hover {
    color: var(--text-primary);
    border-color: var(--card-border);
}

.mt-4 { margin-top: 16px; }

/* 错误提示 */
.error-message {
    color: var(--danger);
    font-size: 14px;
    text-align: center;
    margin-bottom: 16px;
    min-height: 20px;
    opacity: 0;
    transition: opacity 0.3s;
}
.error-message.show { opacity: 1; }

/* 加载动画 */
.loader {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

/* 结果展示区特定样式 */
.account-info {
    background: rgba(0,0,0,0.3);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 24px;
    border: 1px solid rgba(255,255,255,0.05);
}

.info-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 12px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.value-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.03);
    padding: 10px 12px;
    border-radius: 8px;
}

.value {
    font-family: monospace;
    font-size: 14px;
    color: var(--text-primary);
    word-break: break-all;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

.copy-btn:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.1);
}

.download-section h3 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-align: center;
    font-weight: 500;
}

.btn-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 成功动画 */
.success-icon svg {
    animation: successPop 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transform: scale(0);
}

@keyframes successPop {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}