/* login.html 页面样式（2026-09-10 从内联 <style> 拆出）。Orbitron 字体见 /vendor/fonts/orbitron/orbitron.css */
        
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    html, body {
        margin: 0;
        padding: 0;
        width: 100%;
        height: 100%;
        overflow-x: hidden;
    }

    body {
        font-family: 'Orbitron', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        background: #0a0a0a;
        min-height: 100vh;
        min-width: 100vw;
        display: block;
        padding: 20px;
        position: relative;
        overflow-x: hidden;
        margin: 0;
    }

    /* 纯 CSS 背景：缓慢旋转的网格 + 两团呼吸光晕，只用 transform/opacity，由合成器处理，几乎不占 CPU */
    .login-bg {
        position: fixed;
        inset: 0;
        z-index: 0;
        overflow: hidden;
        pointer-events: none;
        background:
            radial-gradient(ellipse at 50% 40%, rgba(0, 255, 255, 0.06), transparent 60%),
            #0a0a0a;
    }
    .login-bg-grid {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 200vmax;
        height: 200vmax;
        margin: -100vmax 0 0 -100vmax;
        background-image:
            linear-gradient(rgba(0, 255, 255, 0.07) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0, 255, 255, 0.07) 1px, transparent 1px);
        background-size: 64px 64px;
        -webkit-mask-image: radial-gradient(circle at center, #000 0%, rgba(0, 0, 0, 0.35) 45%, transparent 72%);
        mask-image: radial-gradient(circle at center, #000 0%, rgba(0, 0, 0, 0.35) 45%, transparent 72%);
        animation: login-bg-rotate 240s linear infinite;
        will-change: transform;
    }
    .login-bg-glow {
        position: absolute;
        width: 60vmax;
        height: 60vmax;
        border-radius: 50%;
        filter: blur(60px);
        opacity: 0.35;
        animation: login-bg-breathe 12s ease-in-out infinite;
        will-change: transform, opacity;
    }
    .login-bg-glow-a {
        top: -20vmax;
        left: -15vmax;
        background: radial-gradient(circle, rgba(0, 255, 255, 0.35), transparent 65%);
    }
    .login-bg-glow-b {
        right: -20vmax;
        bottom: -25vmax;
        background: radial-gradient(circle, rgba(128, 0, 255, 0.32), transparent 65%);
        animation-delay: -6s;
    }
    @keyframes login-bg-rotate {
        from { transform: rotate(0deg); }
        to { transform: rotate(360deg); }
    }
    @keyframes login-bg-breathe {
        0%, 100% { transform: scale(1); opacity: 0.28; }
        50% { transform: scale(1.12); opacity: 0.45; }
    }
    @media (prefers-reduced-motion: reduce) {
        .login-bg-grid, .login-bg-glow { animation: none; }
    }

    .social-links {
        position: fixed;
        top: 24px;
        right: 24px;
        display: flex;
        gap: 14px;
        z-index: 3;
        max-width: calc(100vw - 48px); /* 确保在大分辨率下不会超出屏幕 */
        flex-wrap: wrap; /* 允许换行 */
    }

    .social-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 14px;
        border-radius: 999px;
        border: 1px solid rgba(0, 255, 255, 0.4);
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.12), rgba(255, 0, 255, 0.12));
        color: #00ffff;
        font-size: 13px;
        text-decoration: none;
        letter-spacing: 0.5px;
        transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        cursor: pointer;
        font-family: inherit;
    }

    @media (max-width: 768px) {
        .social-links {
            position: static;
            width: 100%;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 18px;
        }

        .social-link {
            flex: 1 1 calc(50% - 12px);
            justify-content: center;
        }
    }

    @media (max-width: 460px) {
        .social-link {
            flex: 1 1 100%;
        }
    }

    .social-link:hover {
        transform: translateY(-2px);
        border-color: rgba(0, 255, 255, 0.7);
        box-shadow: 0 0 18px rgba(0, 255, 255, 0.35);
    }

    .social-link:active {
        transform: translateY(0);
    }

    .account-badge {
        position: fixed;
        top: 22px;
        right: 24px;
        padding: 16px 20px;
        border-radius: 18px;
        border: 1px solid rgba(123, 100, 255, 0.45);
        background: linear-gradient(135deg, rgba(40, 33, 82, 0.92), rgba(18, 17, 40, 0.88));
        box-shadow: 0 0 28px rgba(104, 73, 255, 0.35);
        color: rgba(235, 230, 255, 0.9);
        font-size: 13px;
        min-width: 230px;
        max-width: calc(100vw - 48px); /* 确保在大分辨率下不会超出屏幕 */
        display: none;
        z-index: 4;
    }

    .account-badge.active {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .account-badge .badge-title {
        font-size: 14px;
        font-weight: 800;
        letter-spacing: 1px;
        color: #cbbdff;
    }

    .account-badge .badge-line {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .account-badge .badge-line span {
        font-size: 16px;
    }

    .badge-membership {
        display: flex;
        gap: 10px;
        margin-top: 4px;
    }

    .badge-member {
        flex: 1;
        padding: 6px 10px;
        border-radius: 12px;
        border: 1px solid transparent;
        text-align: center;
        font-size: 12px;
        letter-spacing: 0.5px;
        opacity: 0.55;
    }

    .badge-member.plus {
        border-color: rgba(123, 100, 255, 0.4);
        background: rgba(123, 100, 255, 0.18);
    }

    .badge-member.pro {
        border-color: rgba(73, 194, 255, 0.35);
        background: rgba(73, 194, 255, 0.2);
    }

    .badge-member.active {
        opacity: 1;
        box-shadow: 0 0 20px rgba(123, 100, 255, 0.25);
    }

    /* 动态背景效果 - 保留渐变层作为底层 */
    body::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: 
            radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.05) 0%, transparent 50%),
            radial-gradient(circle at 40% 20%, rgba(0, 255, 157, 0.05) 0%, transparent 50%);
        z-index: 0;
        animation: backgroundShift 20s ease infinite;
        pointer-events: none;
    }

    @keyframes backgroundShift {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.8; }
    }

    /* 主布局容器 - 左右分栏 */
    .login-layout {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        padding: 40px 20px;
        gap: 60px;
        max-width: 1400px;
        margin: 0 auto;
        position: relative;
        z-index: 2;
    }

    /* 左侧登录表单容器 */
    .login-container {
        flex: 0 0 450px;
        width: 100%;
        max-width: 450px;
        background: linear-gradient(135deg, rgba(20, 20, 30, 0.95) 0%, rgba(10, 10, 20, 0.95) 100%);
        border-radius: 20px;
        border: 1px solid rgba(0, 255, 255, 0.2);
        box-shadow: 
            0 0 50px rgba(0, 255, 255, 0.1),
            0 0 100px rgba(255, 0, 255, 0.05),
            inset 0 0 50px rgba(0, 255, 255, 0.05);
        padding: 50px 40px;
        position: relative;
        z-index: 2;
    }

    /* 全屏背景视频容器 */
    .login-video-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        z-index: 1;
        overflow: hidden;
        pointer-events: none;
    }


    .login-video-container video {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 0;
    }

    /* 响应式设计 */
    @media (max-width: 1024px) {
        .login-layout {
            flex-direction: column;
            gap: 40px;
            padding: 20px;
        }

        .login-container {
            flex: 1;
            max-width: 100%;
            margin: 0;
        }

    }

    @media (max-width: 768px) {
        .login-layout {
            padding: 20px 10px;
            gap: 30px;
        }

        .login-container {
            padding: 40px 30px;
        }

    }

    .login-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .login-header h1 {
        font-size: 32px;
        font-weight: 900;
        margin-bottom: 10px;
        background: linear-gradient(135deg, #00ffff 0%, #ff00ff 50%, #00ff9d 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        text-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
        letter-spacing: 2px;
    }

    .login-header p {
        color: rgba(0, 255, 255, 0.8);
        font-size: 14px;
        letter-spacing: 1px;
    }

    .form-group {
        margin-bottom: 25px;
    }

    .form-group label {
        display: block;
        margin-bottom: 10px;
        font-weight: 700;
        color: #00ffff;
        font-size: 13px;
        letter-spacing: 1px;
        text-transform: uppercase;
        text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    }

    .form-group input {
        width: 100%;
        padding: 15px 20px;
        background: rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(0, 255, 255, 0.3);
        border-radius: 10px;
        font-size: 14px;
        color: #ffffff;
        transition: all 0.3s;
        font-family: 'Orbitron', sans-serif;
    }

    .form-group input::placeholder {
        color: rgba(255, 255, 255, 0.3);
    }

    .form-group input:focus {
        outline: none;
        border-color: #00ffff;
        box-shadow: 
            0 0 15px rgba(0, 255, 255, 0.5),
            inset 0 0 10px rgba(0, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.7);
    }

    .slider-captcha-wrapper {
        margin: 18px 0 24px;
    }

    .slider-captcha {
        position: relative;
        height: 48px;
        border-radius: 12px;
        background: rgba(5, 10, 25, 0.78);
        border: 1px solid rgba(0, 255, 255, 0.28);
        overflow: hidden;
        user-select: none;
        touch-action: none;
    }

    .slider-track {
        position: relative;
        width: 100%;
        height: 100%;
        touch-action: none;
    }

    .slider-progress {
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        width: 0;
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.35), rgba(0, 128, 255, 0.55));
        transition: width 0.2s ease;
    }

    .slider-text {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        font-size: 13px;
        color: rgba(200, 235, 255, 0.85);
        letter-spacing: 0.5px;
        pointer-events: none;
        transition: color 0.2s ease, opacity 0.2s ease;
    }

    .slider-handle {
        position: absolute;
        left: 0;
        top: 0;
        width: 52px;
        height: 100%;
        border-radius: 12px;
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.9), rgba(102, 0, 255, 0.9));
        color: #001a2c;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        font-weight: 800;
        cursor: pointer;
        box-shadow: 0 0 18px rgba(0, 255, 255, 0.45);
        transition: transform 0.1s ease, box-shadow 0.3s ease, background 0.3s ease;
        touch-action: none;
        will-change: transform;
    }

    .slider-handle:active {
        box-shadow: 0 0 26px rgba(0, 255, 255, 0.6);
    }

    .slider-captcha.success .slider-handle {
        background: linear-gradient(135deg, rgba(0, 255, 157, 0.95), rgba(0, 200, 255, 0.95));
        color: #012015;
        box-shadow: 0 0 26px rgba(0, 255, 157, 0.55);
    }

    .slider-captcha.success .slider-text {
        color: rgba(0, 255, 157, 0.9);
    }

    .slider-captcha.error .slider-text {
        color: rgba(255, 96, 96, 0.9);
    }

    .slider-refresh {
        margin-top: 8px;
        display: flex;
        justify-content: flex-end;
    }

    .slider-refresh button {
        background: none;
        border: none;
        color: rgba(0, 255, 255, 0.7);
        font-size: 13px;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 0;
        font-family: 'Orbitron', sans-serif;
    }

    .slider-refresh button:hover {
        color: rgba(0, 255, 255, 0.95);
    }

    .slider-refresh button:disabled {
        color: rgba(0, 255, 255, 0.35);
        cursor: not-allowed;
    }

    .login-btn {
        width: 100%;
        padding: 15px;
        background: linear-gradient(135deg, #00ffff 0%, #ff00ff 100%);
        color: #000;
        border: none;
        border-radius: 10px;
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 2px;
        text-transform: uppercase;
        cursor: pointer;
        transition: all 0.3s;
        font-family: 'Orbitron', sans-serif;
        margin-top: 10px;
        box-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
    }

    .login-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(0, 255, 255, 0.6);
    }

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

    .register-link {
        margin-top: 18px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        padding: 12px 18px;
        border-radius: 18px;
        background: linear-gradient(145deg, rgba(35, 40, 90, 0.65), rgba(15, 20, 48, 0.75));
        border: 1px solid rgba(110, 200, 255, 0.28);
        box-shadow:
            0 12px 28px rgba(0, 180, 255, 0.16),
            inset 0 0 18px rgba(0, 110, 255, 0.12);
    }

    .register-link span {
        display: flex;
        align-items: center;
        gap: 6px;
        color: rgba(220, 240, 255, 0.86);
        font-size: 12px;
        letter-spacing: 0.8px;
    }

    .register-link span::before {
        content: "✨";
        font-size: 13px;
    }

    .register-link span strong {
        color: #ffb6ff;
    }

    .register-link button {
        padding: 8px 22px;
        border-radius: 999px;
        border: 1px solid rgba(255, 138, 255, 0.78);
        background: linear-gradient(135deg, rgba(255, 150, 255, 0.38), rgba(99, 135, 255, 0.42));
        color: rgba(255, 255, 255, 0.96);
        cursor: pointer;
        font-size: 12px;
        letter-spacing: 1.6px;
        text-transform: uppercase;
        font-weight: 800;
        font-family: 'Orbitron', sans-serif;
        box-shadow:
            0 0 28px rgba(255, 155, 255, 0.45),
            0 0 16px rgba(110, 140, 255, 0.32);
        transition: all 0.22s ease;
    }

    .register-link button:hover {
        transform: translateY(-1px) scale(1.03);
        box-shadow:
            0 0 36px rgba(255, 175, 255, 0.6),
            0 0 20px rgba(110, 140, 255, 0.36);
        border-color: rgba(255, 190, 255, 0.92);
    }

    .register-link button:active {
        transform: scale(0.98);
        box-shadow: 0 0 22px rgba(255, 150, 255, 0.32);
    }

    @media (max-width: 520px) {
        .register-link {
            flex-direction: column;
            align-items: stretch;
            text-align: center;
        }
        .register-link button {
            width: 100%;
        }
    }

    .modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.92);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 10;
        padding: 20px;
    }

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

    .modal-content {
        width: min(520px, 100%);
        background: linear-gradient(135deg, rgba(20, 20, 30, 0.95), rgba(10, 10, 20, 0.95));
        border-radius: 18px;
        border: 1px solid rgba(0, 255, 255, 0.2);
        box-shadow: 0 0 40px rgba(0, 255, 255, 0.25);
        padding: 30px;
        position: relative;
    }

    .about-platform-modal .modal-content {
        width: min(90vw, 1200px);
        height: min(90vh, 800px);
        max-width: 1200px;
        max-height: 800px;
        padding: 0;
        display: flex;
        flex-direction: column;
    }

    .about-platform-modal .modal-header {
        padding: 20px 30px;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
    }

    .about-platform-modal .modal-title {
        margin: 0;
        text-align: left;
    }

    .about-platform-modal .modal-header .modal-close {
        position: relative;
        right: 0;
        top: 0;
    }

    .about-platform-modal .modal-iframe-container {
        flex: 1;
        overflow: hidden;
        position: relative;
    }

    .about-platform-modal iframe {
        width: 100%;
        height: 100%;
        border: none;
        background: #fff;
    }

    .modal-close {
        position: absolute;
        right: 20px;
        top: 18px;
        background: none;
        border: none;
        color: rgba(0, 255, 255, 0.7);
        font-size: 22px;
        cursor: pointer;
    }

    .modal-title {
        font-size: 22px;
        font-weight: 800;
        margin-bottom: 20px;
        color: #00ffff;
        letter-spacing: 1px;
        text-align: center;
    }

    .modal-form-group {
        margin-bottom: 18px;
    }

    .modal-form-group label {
        display: block;
        color: rgba(0, 255, 255, 0.85);
        font-size: 12px;
        letter-spacing: 1px;
        margin-bottom: 8px;
    }

    .modal-form-group input,
    .modal-form-group select {
        width: 100%;
        padding: 12px 16px;
        border-radius: 10px;
        border: 1px solid rgba(0, 255, 255, 0.3);
        background: rgba(10, 14, 30, 0.85);
        color: #fff;
        font-size: 14px;
        font-family: 'Orbitron', sans-serif;
        appearance: none;
        outline: none;
        transition: border 0.2s ease, box-shadow 0.2s ease;
    }

    .modal-form-group select:focus,
    .modal-form-group input:focus {
        border-color: rgba(0, 255, 255, 0.6);
        box-shadow: 0 0 12px rgba(0, 255, 255, 0.35);
    }

    .modal-form-group select option {
        background-color: rgba(5, 10, 25, 0.95);
        color: rgba(210, 220, 255, 0.9);
    }

    .plan-select-wrapper,
    .currency-select-wrapper {
        position: relative;
    }

    .plan-select-wrapper img,
    .currency-select-wrapper img {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        width: 20px;
        height: 20px;
        pointer-events: none;
        filter: drop-shadow(0 0 6px rgba(0, 255, 255, 0.4));
    }

    .plan-select-wrapper select,
    .currency-select-wrapper select {
        padding-left: 44px;
    }

    .network-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .network-label img {
        width: 16px;
        height: 16px;
    }

    .plan-summary {
        background: linear-gradient(135deg, rgba(0, 40, 60, 0.4), rgba(0, 15, 25, 0.6));
        border: 1px solid rgba(0, 255, 255, 0.28);
        border-radius: 16px;
        padding: 18px;
        margin-bottom: 18px;
        color: rgba(210, 235, 255, 0.88);
        font-size: 14px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        box-shadow: 0 0 25px rgba(0, 255, 255, 0.12);
    }

    .plan-summary-line {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    .plan-summary-line .label {
        font-weight: 700;
        color: rgba(0, 255, 255, 0.85);
        letter-spacing: 0.5px;
    }

    .plan-summary-line .value {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 600;
        color: rgba(230, 245, 255, 0.9);
    }

    .plan-summary-line .value strong {
        color: #00ffff;
        letter-spacing: 0.5px;
    }

    .plan-summary-line .value .sub {
        font-size: 12px;
        color: rgba(0, 255, 195, 0.8);
        background: rgba(0, 255, 195, 0.12);
        padding: 4px 8px;
        border-radius: 999px;
        letter-spacing: 0.4px;
    }

    .plan-summary-tag {
        position: relative;
        font-size: 12px;
        color: rgba(255, 215, 0, 0.85);
        background: rgba(255, 215, 0, 0.12);
        padding: 4px 14px;
        border-radius: 10px;
        border: 1px solid rgba(255, 215, 0, 0.35);
        letter-spacing: 0.5px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }

    .plan-summary-tag::after {
        content: '';
        position: absolute;
        left: 10px;
        right: 10px;
        top: 50%;
        height: 2px;
        background: linear-gradient(90deg, rgba(255, 215, 0, 0) 0%, rgba(255, 215, 0, 0.85) 50%, rgba(255, 215, 0, 0) 100%);
        transform: translateY(-50%) rotate(-4deg);
        box-shadow: 0 0 6px rgba(255, 215, 0, 0.4);
    }

    .plan-summary-line.with-icon .value,
    .plan-summary-line .value.with-icon {
        gap: 8px;
    }

    .summary-icon {
        width: 18px;
        height: 18px;
    }

    .register-submit-btn {
        width: 100%;
        padding: 14px;
        border-radius: 10px;
        border: none;
        background: linear-gradient(135deg, #00ffff 0%, #ff5af4 100%);
        color: #000;
        font-size: 15px;
        font-weight: 700;
        letter-spacing: 1px;
        cursor: pointer;
        font-family: 'Orbitron', sans-serif;
    }

    .register-error {
        background: rgba(255, 0, 0, 0.15);
        border: 1px solid rgba(255, 0, 0, 0.35);
        color: #ff6b6b;
        border-radius: 10px;
        padding: 12px 16px;
        margin-bottom: 16px;
        display: none;
        font-size: 13px;
        text-align: center;
    }

    .register-success {
        background: rgba(0, 255, 157, 0.15);
        border: 1px solid rgba(0, 255, 157, 0.35);
        color: #00ff9d;
        border-radius: 10px;
        padding: 12px 16px;
        margin-bottom: 16px;
        display: none;
        font-size: 13px;
        text-align: center;
    }

    .register-links {
        margin-top: 12px;
        text-align: center;
        font-size: 13px;
        color: rgba(0, 255, 255, 0.75);
        line-height: 1.6;
    }

    .input-feedback {
        font-size: 12px;
        margin-top: 6px;
        min-height: 16px;
        letter-spacing: 0.5px;
    }

    .input-feedback.success {
        color: #00ff9d;
    }

    .input-feedback.error {
        color: #ff6b6b;
    }

    .register-layout {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        align-items: stretch;
        justify-items: stretch;
        gap: 24px;
        padding-inline: 12px;
    }

    .register-layout .modal-content {
        grid-column: span 2;
        min-width: 320px;
    }

    @media (max-width: 1100px) {
        .register-layout {
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        }
        .register-layout .modal-content {
            grid-column: span 1;
        }
    }

    .plan-floating {
        border-radius: 26px;
        padding: 34px 32px 40px;
        background: radial-gradient(circle at top, rgba(88, 76, 190, 0.22) 0%, rgba(26, 20, 68, 0.9) 48%, rgba(14, 13, 32, 0.92) 100%);
        border: 1px solid rgba(145, 121, 255, 0.45);
        box-shadow:
            0 18px 50px rgba(96, 72, 255, 0.28),
            inset 0 0 35px rgba(88, 92, 255, 0.12);
        display: flex;
        flex-direction: column;
        gap: 18px;
        opacity: 0.9;
        transition: all 0.35s ease;
    }

    .plan-floating.trial {
        position: relative;
        overflow: hidden;
        border: 1px solid rgba(255, 200, 120, 0.45);
        background: linear-gradient(140deg, rgba(255, 170, 70, 0.16) 0%, rgba(120, 45, 15, 0.88) 40%, rgba(38, 16, 9, 0.95) 100%);
        box-shadow:
            0 22px 55px rgba(255, 180, 118, 0.32),
            inset 0 0 40px rgba(220, 110, 60, 0.14);
    }

    .plan-floating.trial::before {
        content: '';
        position: absolute;
        inset: 18px 18px 90px 18px;
        background: linear-gradient(115deg, rgba(255, 220, 150, 0.18), transparent 60%);
        border-radius: 20px;
        pointer-events: none;
        mix-blend-mode: screen;
    }

    .plan-floating.trial::after {
        content: '';
        position: absolute;
        bottom: 22px;
        left: 28px;
        width: 120px;
        height: 120px;
        background: radial-gradient(circle, rgba(255, 185, 110, 0.25) 0%, transparent 70%);
        filter: blur(0.5px);
        pointer-events: none;
    }

    .plan-floating.plus {
        background: radial-gradient(circle at top, rgba(88, 76, 190, 0.22) 0%, rgba(26, 20, 68, 0.9) 48%, rgba(14, 13, 32, 0.92) 100%);
        border: 1px solid rgba(145, 121, 255, 0.45);
    }

    .plan-floating.pro {
        background: radial-gradient(circle at top, rgba(46, 132, 255, 0.25) 0%, rgba(18, 55, 92, 0.92) 45%, rgba(9, 18, 32, 0.95) 100%);
        border: 1px solid rgba(68, 198, 255, 0.5);
        box-shadow:
            0 18px 55px rgba(34, 182, 255, 0.3),
            inset 0 0 35px rgba(52, 178, 255, 0.14);
    }

    .plan-floating.active {
        transform: translateY(-10px) scale(1.02);
        opacity: 1;
        box-shadow:
            0 22px 60px rgba(153, 135, 255, 0.5),
            inset 0 0 45px rgba(120, 115, 255, 0.18);
    }

    .plan-floating.trial.active {
        box-shadow:
            0 24px 60px rgba(255, 190, 120, 0.58),
            inset 0 0 45px rgba(255, 210, 150, 0.22);
    }

    .plan-floating.trial .plan-badge {
        color: rgba(255, 235, 200, 0.95);
        text-shadow: 0 4px 12px rgba(255, 200, 120, 0.3);
        font-size: 21px;
    }

    .plan-floating.trial .plan-price {
        color: rgba(255, 220, 180, 0.95);
    }

    .plan-floating.trial .plan-desc,
    .plan-floating.trial .plan-feature-list li {
        color: rgba(255, 235, 210, 0.85);
    }

    .plan-floating.trial .plan-feature-list li span {
        filter: drop-shadow(0 0 6px rgba(255, 200, 140, 0.55));
    }

    .plan-floating.plus .plan-badge {
        color: #d6cfff;
    }

    .plan-floating.pro .plan-badge {
        color: #a2f1ff;
    }

    .plan-floating .plan-price {
        font-size: 20px;
        font-weight: 800;
        color: rgba(255, 255, 255, 0.92);
        letter-spacing: 0.8px;
    }

    .plan-floating .plan-desc {
        font-size: 14px;
        color: rgba(225, 218, 255, 0.78);
        line-height: 1.6;
    }

    .plan-feature-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .plan-feature-list li {
        display: flex;
        gap: 10px;
        align-items: center;
        font-size: 14px;
        color: rgba(240, 236, 255, 0.92);
        letter-spacing: 0.4px;
    }

    .plan-feature-list li span {
        font-size: 18px;
    }

    @media (max-width: 1200px) {
        .plan-floating {
            flex: 0 0 300px;
        }
    }

    @media (max-width: 1100px) {
        .register-layout {
            flex-direction: column;
            align-items: center;
        }

        .plan-floating {
            display: none;
        }
    }

    .payment-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.9);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 20;
        padding: 40px;
    }

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

    .payment-frame-wrapper {
        width: min(1000px, 100%);
        height: min(720px, 90vh);
        background: #000;
        border-radius: 16px;
        border: 1px solid rgba(0, 255, 255, 0.25);
        overflow: hidden;
        position: relative;
        box-shadow: 0 0 40px rgba(0, 255, 255, 0.35);
    }

    #paymentFrame {
        width: 100%;
        height: 100%;
        border: none;
    }

    .payment-close {
        position: absolute;
        top: 14px;
        right: 18px;
        background: rgba(0, 0, 0, 0.6);
        border: 1px solid rgba(0, 255, 255, 0.4);
        color: #00ffff;
        font-size: 20px;
        padding: 4px 10px;
        border-radius: 999px;
        cursor: pointer;
    }

    .payment-hint {
        position: absolute;
        top: 22px;
        left: 50%;
        transform: translateX(-50%);
        padding: 8px 20px;
        background: rgba(0, 0, 0, 0.55);
        border-radius: 999px;
        color: rgba(255, 255, 255, 0.95);
        font-size: 15px;
        font-weight: 600;
        letter-spacing: 1.1px;
    }

    .error-message {
        background: rgba(255, 0, 0, 0.2);
        color: #ff6b6b;
        padding: 15px;
        border-radius: 8px;
        margin-bottom: 20px;
        border: 1px solid rgba(255, 0, 0, 0.5);
        box-shadow: 0 0 20px rgba(255, 0, 0, 0.3);
        display: none;
        text-align: center;
        font-size: 14px;
    }

    .loading {
        text-align: center;
        color: #00ffff;
        font-size: 14px;
        margin-top: 15px;
        display: none;
    }
    .sidebar-menu {
        display: flex;
        flex-direction: column;
        gap: 18px;
    }

    .model-assistant-btn {
        position: fixed;
        top: 26px;
        left: 32px;
        z-index: 120;
        padding: 10px 22px;
        border-radius: 999px;
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.22), rgba(136, 120, 255, 0.32));
        border: 1px solid rgba(122, 90, 255, 0.65);
        color: #e8f3ff;
        font-size: 13px;
        letter-spacing: 1.2px;
        cursor: pointer;
        box-shadow: 0 12px 25px rgba(96, 80, 255, 0.28);
        transition: all 0.2s ease;
        max-width: calc(100vw - 64px); /* 确保在大分辨率下不会超出屏幕 */
        white-space: nowrap; /* 防止文字换行 */
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    /* 大分辨率下的优化 */
    @media (min-width: 1920px) {
        .social-links {
            right: max(24px, calc((100vw - 1920px) / 2 + 24px)); /* 在大屏幕上保持合理位置 */
        }
        
        .model-assistant-btn {
            left: max(32px, calc((100vw - 1920px) / 2 + 32px)); /* 在大屏幕上保持合理位置 */
        }
        
        .account-badge {
            right: max(24px, calc((100vw - 1920px) / 2 + 24px)); /* 在大屏幕上保持合理位置 */
        }
    }
    
    @media (min-width: 2560px) {
        .social-links {
            gap: 18px; /* 增大间距 */
        }
        
        .social-link {
            padding: 10px 18px; /* 稍微增大按钮 */
            font-size: 14px;
        }
        
        .model-assistant-btn {
            padding: 12px 26px; /* 稍微增大按钮 */
            font-size: 14px;
        }
    }

    .model-assistant-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 15px 30px rgba(118, 90, 255, 0.38);
    }

    .model-assistant-overlay {
        position: fixed;
        inset: 0;
        background: rgba(3, 8, 18, 0.92);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 200;
        padding: 40px 20px;
    }

    .model-assistant-overlay.active {
        display: flex;
    }

    .model-assistant-panel {
        width: 100%;
        max-width: 1024px;
        max-height: calc(100vh - 80px);
        background: linear-gradient(145deg, rgba(14, 20, 42, 0.98), rgba(6, 12, 28, 0.96));
        border-radius: 28px;
        border: 1px solid rgba(118, 92, 255, 0.5);
        box-shadow: 0 24px 52px rgba(70, 90, 255, 0.35);
        padding: 32px 36px 36px;
        position: relative;
        color: #dfeaff;
        display: flex;
        flex-direction: column;
        gap: 26px;
        overflow-y: auto;
    }

    .model-assistant-close {
        position: absolute;
        top: 18px;
        right: 22px;
        background: rgba(0, 0, 0, 0.45);
        border: 1px solid rgba(120, 110, 255, 0.55);
        color: rgba(220, 234, 255, 0.92);
        border-radius: 999px;
        padding: 6px 12px;
        cursor: pointer;
    }

    .model-assistant-header h2 {
        margin: 0;
        font-size: 26px;
        font-weight: 800;
        letter-spacing: 1.6px;
        color: #8ae8ff;
    }

    .model-assistant-highlight {
        background: radial-gradient(circle at 12% 12%, rgba(70, 210, 255, 0.16), transparent 55%),
                    radial-gradient(circle at 88% 20%, rgba(255, 146, 255, 0.18), transparent 60%),
                    rgba(0, 20, 40, 0.55);
        border: 1px solid rgba(140, 220, 255, 0.35);
        border-radius: 22px;
        padding: 22px 26px;
        display: flex;
        flex-direction: column;
        gap: 20px;
        letter-spacing: 0.6px;
    }

    .model-banner {
        display: flex;
        gap: 26px;
        align-items: stretch;
    }

    .model-banner .banner-left {
        flex: 1.6;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .banner-kicker {
        font-size: 12px;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: rgba(120, 220, 255, 0.85);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .banner-kicker::before {
        content: '';
        width: 26px;
        height: 1px;
        background: linear-gradient(90deg, rgba(120, 220, 255, 0.1), rgba(120, 220, 255, 0.9));
    }

    .model-banner .banner-left h3 {
        margin: 0;
        font-size: 24px;
        font-weight: 800;
        letter-spacing: 1.4px;
        color: rgba(255, 237, 180, 0.92);
    }

    .model-banner .banner-left p {
        margin: 0;
        font-size: 14px;
        line-height: 1.8;
        color: rgba(212, 232, 255, 0.88);
    }

    .banner-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .banner-tags span {
        padding: 6px 14px;
        border-radius: 999px;
        border: 1px solid rgba(140, 200, 255, 0.35);
        background: rgba(10, 30, 60, 0.55);
        font-size: 12px;
        color: rgba(200, 235, 255, 0.9);
        letter-spacing: 0.8px;
    }

    .model-banner .banner-right {
        flex: 1;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 12px;
        align-content: flex-start;
    }

    .banner-stat {
        border-radius: 18px;
        background: linear-gradient(135deg, rgba(255, 168, 255, 0.18), rgba(70, 120, 255, 0.22));
        border: 1px solid rgba(150, 180, 255, 0.35);
        padding: 18px 16px;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .banner-stat .stat-value {
        font-size: 24px;
        font-weight: 900;
        color: rgba(255, 220, 140, 0.96);
        letter-spacing: 1.2px;
    }

    .banner-stat .stat-label {
        font-size: 12px;
        color: rgba(210, 228, 255, 0.78);
        letter-spacing: 0.6px;
    }

    .model-metrics {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 16px;
    }

    .metric-item {
        border-radius: 18px;
        border: 1px solid rgba(110, 190, 255, 0.32);
        background: linear-gradient(135deg, rgba(20, 32, 70, 0.75), rgba(12, 20, 44, 0.78));
        padding: 16px 18px;
        display: flex;
        flex-direction: column;
        gap: 6px;
        position: relative;
        overflow: hidden;
    }

    .metric-item::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 60%);
        pointer-events: none;
    }

    .metric-value {
        font-size: 22px;
        font-weight: 800;
        color: rgba(255, 218, 160, 0.95);
    }

    .metric-label {
        font-size: 12px;
        color: rgba(200, 224, 255, 0.78);
        line-height: 1.6;
    }

    .model-elite-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 18px;
    }

    .elite-card {
        border-radius: 20px;
        border: 1px solid rgba(140, 160, 255, 0.32);
        background: linear-gradient(135deg, rgba(32, 44, 90, 0.78), rgba(18, 26, 58, 0.88));
        padding: 20px 22px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        position: relative;
    }

    .elite-card h3 {
        margin: 0;
        font-size: 16px;
        font-weight: 700;
        color: rgba(190, 225, 255, 0.92);
        letter-spacing: 1px;
    }

    .elite-card ul {
        padding-left: 18px;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-size: 13px;
        color: rgba(205, 228, 255, 0.82);
        line-height: 1.6;
    }

    .model-trust {
        border-radius: 20px;
        border: 1px solid rgba(160, 150, 255, 0.32);
        background: radial-gradient(circle at 10% 10%, rgba(255, 166, 250, 0.18), transparent 60%),
                    radial-gradient(circle at 90% 20%, rgba(110, 190, 255, 0.18), transparent 65%),
                    rgba(18, 28, 60, 0.82);
        padding: 20px 24px;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .trust-quote {
        font-size: 15px;
        line-height: 1.7;
        color: rgba(240, 244, 255, 0.88);
        position: relative;
    }

    .trust-quote::before {
        content: '“';
        position: absolute;
        left: -16px;
        top: -6px;
        font-size: 28px;
        color: rgba(255, 200, 255, 0.35);
    }

    .trust-quote::after {
        content: '”';
        margin-left: 6px;
        color: rgba(255, 200, 255, 0.35);
    }

    .trust-meta {
        font-size: 12px;
        color: rgba(200, 220, 255, 0.72);
        letter-spacing: 0.8px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }

    @media (max-width: 900px) {
        .model-banner {
            flex-direction: column;
        }

        .model-banner .banner-right {
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        }
    }

    .model-chart {
        padding: 18px 22px;
        border-radius: 18px;
        border: 1px solid rgba(118, 160, 255, 0.35);
        background: linear-gradient(135deg, rgba(36, 46, 82, 0.65), rgba(14, 22, 48, 0.72));
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .model-chart h3 {
        margin: 0;
        font-size: 16px;
        font-weight: 700;
        color: rgba(190, 230, 255, 0.9);
        letter-spacing: 1px;
    }

    .model-chart svg {
        width: 100%;
        height: 280px;
        min-height: 280px;
    }

    .model-chart svg.performance-chart {
        background: linear-gradient(135deg, rgba(10, 20, 40, 0.4), rgba(5, 15, 30, 0.5));
        border-radius: 12px;
        padding: 20px 10px;
    }

    .model-chart-legend {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        font-size: 13px;
        color: rgba(200, 230, 255, 0.85);
        margin-top: 8px;
        padding-top: 12px;
        border-top: 1px solid rgba(0, 255, 255, 0.15);
    }

    .model-chart-legend .legend-item {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 4px 10px;
        border-radius: 6px;
        transition: all 0.3s ease;
        background: rgba(0, 255, 255, 0.05);
    }

    .model-chart-legend .legend-item:hover {
        background: rgba(0, 255, 255, 0.12);
        transform: translateY(-1px);
    }

    .model-chart-legend .legend-item.legend-cshen {
        background: rgba(255, 199, 120, 0.15);
        border: 1px solid rgba(255, 199, 120, 0.3);
    }

    .model-chart-legend .legend-item.legend-cshen:hover {
        background: rgba(255, 199, 120, 0.25);
        box-shadow: 0 0 12px rgba(255, 199, 120, 0.4);
    }

    .legend-dot {
        width: 14px;
        height: 14px;
        border-radius: 50%;
        display: inline-block;
        box-shadow: 0 0 8px currentColor;
        flex-shrink: 0;
    }

    .legend-cshen { 
        background: #ffc778;
        box-shadow: 0 0 12px rgba(255, 199, 120, 0.8);
    }
    .legend-chatgpt { background: #58c0ff; }
    .legend-grok { background: #ff78ff; }
    .legend-deepseek { background: #8affc7; }
    .legend-gemini { background: #a8a0ff; }
    .legend-llama { background: #ffd280; }

    /* 图表动画 */
    @keyframes chartLineDraw {
        from {
            stroke-dasharray: 2000;
            stroke-dashoffset: 2000;
        }
        to {
            stroke-dasharray: 2000;
            stroke-dashoffset: 0;
        }
    }

    .performance-chart polyline:first-of-type {
        animation: chartLineDraw 2s ease-out forwards;
    }

    .performance-chart .data-points-cshen circle {
        animation: fadeInScale 0.6s ease-out forwards;
        animation-delay: 1.8s;
        opacity: 0;
    }

    .performance-chart .data-points-others circle {
        animation: fadeInScale 0.4s ease-out forwards;
        animation-delay: 2.2s;
        opacity: 0;
    }

    @keyframes fadeInScale {
        from {
            opacity: 0;
            transform: scale(0);
        }
        to {
            opacity: 1;
            transform: scale(1);
        }
    }

    .model-compare-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }

    .model-card {
        border-radius: 18px;
        border: 1px solid rgba(90, 140, 255, 0.4);
        background: rgba(30, 40, 72, 0.8);
        padding: 18px 20px;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .model-card.cshen {
        border: 1px solid rgba(255, 196, 99, 0.75);
        background: linear-gradient(160deg, rgba(255, 200, 120, 0.18), rgba(52, 38, 94, 0.85));
        box-shadow: 0 16px 36px rgba(255, 195, 120, 0.25);
    }

    .model-card h3 {
        margin: 0;
        font-size: 18px;
        font-weight: 800;
        color: rgba(255, 231, 140, 0.92);
    }

    .model-card ul {
        margin: 0;
        padding-left: 18px;
        display: flex;
        flex-direction: column;
        gap: 8px;
        color: rgba(220, 235, 255, 0.85);
    }

    .model-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        font-size: 13px;
        letter-spacing: 0.8px;
        color: rgba(200, 230, 255, 0.7);
    }

    @media (max-width: 720px) {
        .model-assistant-btn {
            top: 18px;
            left: 18px;
        }

        .model-assistant-panel {
            padding: 24px 20px;
        }

        .model-footer {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    .contact-floating-btn {
        position: fixed;
        bottom: 28px;
        right: 28px;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        border: none;
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.32), rgba(120, 90, 255, 0.42));
        box-shadow: 0 20px 32px rgba(90, 140, 255, 0.35);
        color: #eef9ff;
        font-size: 24px;
        cursor: pointer;
        z-index: 150;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .contact-floating-btn:hover {
        transform: translateY(-2px);
    }

    .contact-form-overlay {
        position: fixed;
        inset: 0;
        background: rgba(4, 10, 24, 0.9);
        display: none;
        align-items: center;
        justify-content: center;
        padding: 40px 20px;
        z-index: 180;
    }

    .contact-form-overlay.active {
        display: flex;
    }

    .contact-form-panel {
        width: 100%;
        max-width: 420px;
        background: linear-gradient(135deg, rgba(18, 28, 58, 0.95), rgba(10, 16, 34, 0.95));
        border-radius: 20px;
        border: 1px solid rgba(120, 150, 255, 0.45);
        box-shadow: 0 24px 48px rgba(90, 130, 255, 0.35);
        padding: 26px 28px 30px;
        display: flex;
        flex-direction: column;
        gap: 18px;
        position: relative;
        color: #e8f4ff;
    }

    .contact-form-panel h3 {
        margin: 0;
        font-size: 20px;
        font-weight: 800;
        letter-spacing: 1px;
    }

    .contact-form-panel label {
        font-size: 13px;
        color: rgba(190, 215, 255, 0.85);
    }

    .contact-form-panel input,
    .contact-form-panel textarea {
        width: 100%;
        padding: 10px 12px;
        border-radius: 10px;
        border: 1px solid rgba(100, 160, 255, 0.35);
        background: rgba(8, 12, 28, 0.82);
        color: #e9f3ff;
        font-size: 13px;
    }

    .contact-form-panel textarea {
        min-height: 110px;
    }

    .contact-form-actions {
        margin-top: 18px;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 12px;
        color: rgba(170, 210, 255, 0.68);
    }

    .contact-form-actions button {
        padding: 8px 18px;
        border-radius: 999px;
        border: 1px solid rgba(140, 180, 255, 0.45);
        background: linear-gradient(135deg, rgba(0, 255, 255, 0.25), rgba(120, 90, 255, 0.35));
        color: #eef6ff;
        cursor: pointer;
    }

    .contact-form-close {
        position: absolute;
        top: 16px;
        right: 18px;
        background: rgba(0, 0, 0, 0.45);
        border: 1px solid rgba(120, 150, 255, 0.45);
        color: #e0ebff;
        border-radius: 999px;
        padding: 4px 10px;
        cursor: pointer;
    }

    .contact-floating-btn + .tooltip {
        position: fixed;
        bottom: 96px;
        right: 32px;
        background: rgba(0, 0, 0, 0.6);
        color: rgba(224, 240, 255, 0.85);
        padding: 6px 12px;
        border-radius: 10px;
        font-size: 12px;
        pointer-events: none;
        opacity: 0;
        transform: translateY(6px);
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .contact-floating-btn:hover + .tooltip {
        opacity: 1;
        transform: translateY(0);
    }

    .contact-form-panel textarea {
         min-height: 110px;
         resize: vertical;
     }

    .contact-slider-wrapper {
        margin-top: 18px;
    }

    .contact-form-actions {
        margin-top: 18px;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 12px;
        color: rgba(170, 210, 255, 0.68);
    }