:root:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            --aisitex-primary: #25D366;
            --aisitex-secondary: #075E54;
            --aisitex-bg: #F8F9FA;
            --aisitex-text: #111827;
            --aisitex-text-light: #4B5563;
        }
*:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
body:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--aisitex-bg);
            color: var(--aisitex-text);
            line-height: 1.6;
        }
/* 导航栏复用样式 */
/* 主体内容区布局 - 杂志式非对称首屏 */
.aisitex-main:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem 6rem;
        }
.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            margin-bottom: 6rem;
        }
.aisitex-hero-left:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
.aisitex-section-tag:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--aisitex-secondary);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--aisitex-text);
            letter-spacing: -0.02em;
        }
.aisitex-hero-desc:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.125rem;
            color: var(--aisitex-text-light);
            line-height: 1.7;
        }
/* 账号交互表单舞台卡片 */
.aisitex-account-card:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #FFFFFF;
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(0, 0, 0, 0.04);
            position: relative;
        }
.aisitex-tab-switch:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #E5E7EB;
            padding-bottom: 1rem;
        }
.aisitex-tab-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--aisitex-text-light);
            cursor: pointer;
            padding-bottom: 0.25rem;
            position: relative;
            transition: color 0.2s;
        }
.aisitex-tab-btn.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-secondary);
        }
.aisitex-tab-btn.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *))::after {
            content: "";
            position: absolute;
            bottom: -1rem;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--aisitex-primary);
        }
.aisitex-form-group:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            margin-bottom: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
.aisitex-form-label:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--aisitex-text);
        }
.aisitex-form-input:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            padding: 0.875rem 1rem;
            border: 1px solid #D1D5DB;
            border-radius: 12px;
            font-size: 1rem;
            background: #FAFAFA;
            transition: all 0.2s;
        }
.aisitex-form-input:focus:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            outline: none;
            border-color: var(--aisitex-primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
        }
.aisitex-form-notice:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.8rem;
            color: var(--aisitex-text-light);
            background: #F0FDF4;
            border-left: 3px solid var(--aisitex-primary);
            padding: 0.75rem 1rem;
            border-radius: 0 8px 8px 0;
            margin-bottom: 1.5rem;
            line-height: 1.5;
        }
.aisitex-submit-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            background-color: var(--aisitex-primary);
            color: #FFFFFF;
            border: none;
            border-radius: 9999px;
            padding: 1rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
            transition: background-color 0.2s, transform 0.1s;
        }
.aisitex-submit-btn:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background-color: #22bf5b;
        }
.aisitex-submit-btn:active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            transform: scale(0.98);
        }
.aisitex-error-msg:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 0.85rem;
            color: #EF4444;
            margin-top: 0.25rem;
            display: none;
        }
.aisitex-error-msg.show:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: block;
        }
/* 已登录状态面板 */
.aisitex-session-panel:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: none;
            text-align: center;
            padding: 2rem 0;
        }
.aisitex-session-panel.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: block;
        }
.aisitex-session-avatar:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 72px;
            height: 72px;
            background: #E6F4EA;
            color: var(--aisitex-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            font-weight: 700;
            margin: 0 auto 1.5rem;
        }
.aisitex-session-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
.aisitex-session-account:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-light);
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
.aisitex-logout-btn:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #FEE2E2;
            color: #991B1B;
            border: none;
            border-radius: 9999px;
            padding: 0.75rem 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
.aisitex-logout-btn:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            background: #FECACA;
        }
/* 场景切片与对照区 */
.aisitex-story-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            border-top: 1px solid #E5E7EB;
            padding-top: 5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }
.aisitex-story-content:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }
.aisitex-story-h2:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
.aisitex-story-img-wrap:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }
.aisitex-story-img-wrap img:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }
/* 页脚 */
.aisitex-footer-inner:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: center;
        }
.aisitex-footer-links:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            display: flex;
            gap: 2rem;
        }
.aisitex-footer-links a:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-text-light);
            text-decoration: none;
            transition: color 0.2s;
        }
.aisitex-footer-links a:hover:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
            color: var(--aisitex-primary);
        }
/* 响应式断点 */
@media (max-width: 992px) {.aisitex-hero-grid:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)), .aisitex-story-section:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                grid-template-columns: 1fr;
                gap: 3rem;
            }
.aisitex-hero-title:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                font-size: 2.5rem;
            }
.aisitex-nav-menu.active:not(:where(.aisitex-header, .aisitex-header *, .aisitex-footer, .aisitex-footer *)){
                display: flex;
            }}

.aisitex-header {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #111827;
}

.aisitex-header, .aisitex-header *{
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

.aisitex-header a{
            text-decoration: none;
            color: inherit;
        }

.aisitex-header{
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(248, 249, 250, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #E5E7EB;
        }

.aisitex-header .aisitex-nav-container{
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.aisitex-header .aisitex-brand{
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: #075E54;
        }

.aisitex-header .aisitex-brand img{
            width: 32px;
            height: 32px;
        }

.aisitex-header .aisitex-nav-menu{
            display: flex;
            align-items: center;
            gap: 2rem;
        }

.aisitex-header .aisitex-nav-link{
            font-size: 0.95rem;
            font-weight: 500;
            color: #4B5563;
            transition: color 0.2s ease;
            position: relative;
            padding: 0.25rem 0;
        }

.aisitex-header .aisitex-nav-link:hover, .aisitex-header .aisitex-nav-link.active{
            color: #075E54;
        }

.aisitex-header .aisitex-nav-link.active::after{
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #25D366;
        }

.aisitex-header .aisitex-menu-toggle{
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

.aisitex-header .aisitex-menu-toggle span{
            display: block;
            width: 24px;
            height: 2px;
            background-color: #111827;
            margin: 5px 0;
            transition: 0.3s;
        }

@media (max-width: 968px){.aisitex-header .aisitex-nav-menu{
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-bottom: 1px solid #E5E7EB;
            }

.aisitex-header .aisitex-nav-menu.active{
                display: flex;
            }

.aisitex-header .aisitex-menu-toggle{
                display: block;
            }

.aisitex-header .aisitex-nav-overlay.active{
                display: block;
            }}

.aisitex-footer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #111827;
}

.aisitex-footer, .aisitex-footer *{
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

.aisitex-footer a{
            text-decoration: none;
            color: inherit;
        }

.aisitex-footer{
            background-color: #FFFFFF;
            border-top: 1px solid #E5E7EB;
            padding: 3rem 1.5rem;
            margin-top: 5rem;
        }

.aisitex-footer .aisitex-footer-container{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

.aisitex-footer .aisitex-footer-nav{
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

.aisitex-footer .aisitex-footer-nav a{
            color: #4B5563;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

.aisitex-footer .aisitex-footer-nav a:hover{
            color: #075E54;
        }

.aisitex-footer .aisitex-footer-bottom{
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid #E5E7EB;
            color: #4B5563;
            font-size: 0.85rem;
        }