/* 基础变量与重置 */
        :root {
            --surface: #ffffff;
            --surface-alt: #f8fafc;
            --surface-dim: #f1f5f9;
            --main: #2b35f5;
            --main-hover: #1e25d3;
            --main-light: #eef0ff;
            --text-prime: #0f172a;
            --text-sec: #334155;
            --text-mute: #64748b;
            --alert: #f59e0b;
            --alert-light: #fef3c7;
            --radius-lg: 24px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow-soft: 0 12px 36px -8px rgba(43, 53, 245, 0.08);
            --shadow-hover: 0 20px 40px -12px rgba(43, 53, 245, 0.15);
            --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.04);
            --transition: all 0.35s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            font-size: 16px;
            color: var(--text-sec);
            background-color: var(--surface);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* 强制安全排版与布局规则 */
        .flex-safe {
            display: flex;
            flex-wrap: wrap;
        }
        .flex-safe > * {
            min-width: 0;
        }
        .ink-safe {
            word-break: break-word;
            overflow-wrap: break-word;
            white-space: normal;
        }
        .ink-cjk {
            word-break: keep-all;
        }

        /* 导航栏复用样式 */
        .apex {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }
        .cable {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .cable > * { min-width: 0; }
        .mark {
            display: flex;
            align-items: center;
        }
        .lens-mark {
            height: 32px;
            width: auto;
        }
        .deck {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .deck > * { min-width: 0; }
        .dial {
            display: flex;
            align-items: center;
        }
        .cord {
            text-decoration: none;
            color: var(--text-sec);
            font-weight: 500;
            transition: var(--transition);
            padding: 0.5rem 0;
            position: relative;
        }
        .cord:hover {
            color: var(--main);
        }
        .cord.active {
            color: var(--main);
        }
        .cord.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--main);
            border-radius: 2px;
        }

        /* 页面骨架 */
        .case-global {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .relay-relay {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4rem;
            padding-bottom: 6rem;
        }

        /* 公共容器 */
        .hub-center {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 2rem;
            width: 100%;
        }
        
        /* 标题层级 */
        .lead-prime {
            color: var(--text-prime);
            font-weight: 700;
            line-height: 1.3;
            font-size: clamp(2.5rem, 4vw, 3.5rem);
            letter-spacing: -0.03em;
            margin-bottom: 1.5rem;
        }
        .lead-sec {
            color: var(--text-prime);
            font-weight: 700;
            font-size: clamp(1.8rem, 3vw, 2.2rem);
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .lead-tri {
            color: var(--text-prime);
            font-weight: 600;
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

        /* 按钮语法 */
        .tap-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--main);
            color: #fff;
            padding: 1rem 2.5rem;
            border-radius: 100px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 8px 24px rgba(43, 53, 245, 0.25);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .tap-primary:hover {
            background: var(--main-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(43, 53, 245, 0.35);
        }

        /* Hero区 (Section 1) - Split Diagonal 变体 */
        .spark {
            background: linear-gradient(135deg, var(--surface-alt) 0%, var(--surface) 100%);
            padding: 6rem 0;
            position: relative;
            overflow: hidden;
        }
        .spark::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: var(--main-light);
            clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
            z-index: 0;
            opacity: 0.5;
        }
        .relay-spark {
            position: relative;
            z-index: 1;
            align-items: center;
            gap: 4rem;
        }
        .node-spark-ink {
            flex: 1;
            min-width: 300px;
        }
        .node-spark-visual {
            flex: 1;
            min-width: 300px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .ink-desc {
            font-size: 1.2rem;
            color: var(--text-mute);
            margin-bottom: 2rem;
            max-width: 480px;
        }
        /* Hero 动效图标 */
        .dot-spinner {
            width: 160px;
            height: 160px;
            position: relative;
        }
        .dot-circle {
            position: absolute;
            inset: 0;
            border: 8px solid var(--surface);
            border-top-color: var(--main);
            border-radius: 50%;
            box-shadow: var(--shadow-soft);
            animation: spin 2s linear infinite;
        }
        .dot-center {
            position: absolute;
            inset: 30px;
            background: var(--surface);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-inner);
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* 基础网络排查 (Aside 1) - FAQ角色 */
        .mesh-faq {
            background: var(--surface);
        }
        .relay-diag {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }
        .gram-diag {
            background: var(--surface);
            padding: 2.5rem 2rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-soft);
            border: 1px solid rgba(0,0,0,0.02);
            transition: var(--transition);
        }
        .gram-diag:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .dot-diag {
            width: 48px;
            height: 48px;
            background: var(--main-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--main);
        }

        /* 代理设置详解 (Div 1) - Acquire角色 */
        .hub-acquire {
            background: var(--surface-alt);
            padding: 6rem 0;
            border-radius: 40px;
            margin: 0 2rem;
        }
        .relay-proxy {
            align-items: flex-start;
            gap: 4rem;
        }
        .node-proxy-ink {
            flex: 1;
            min-width: 320px;
        }
        .node-proxy-ui {
            flex: 1;
            min-width: 320px;
        }
        .belt-step {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2rem;
            align-items: flex-start;
        }
        .belt-step > * { min-width: 0; }
        .dot-num {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            background: var(--main);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
        }
        /* 模拟UI面板 */
        .case-ui {
            background: var(--surface-dim);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-inner);
            border: 4px solid var(--surface);
        }
        .dash-row {
            background: var(--surface);
            padding: 1rem 1.5rem;
            border-radius: var(--radius-sm);
            margin-bottom: 0.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
            transition: var(--transition);
        }
        .dash-row:hover {
            transform: translateX(5px);
            border-left: 3px solid var(--main);
        }
        .ink-row-seal {
            font-weight: 500;
            color: var(--text-prime);
        }
        .ink-row-val {
            color: var(--text-mute);
            font-size: 0.9rem;
        }

        /* 账号限制 (Aside 2) - FAQ角色 */
        .mesh-alert {
            background: var(--surface);
        }
        .tape-alert {
            background: var(--alert-light);
            border-radius: var(--radius-md);
            padding: 3rem;
            display: flex;
            gap: 2rem;
            align-items: flex-start;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .tape-alert > * { min-width: 0; }
        .dot-alert {
            width: 64px;
            height: 64px;
            flex-shrink: 0;
            background: var(--surface);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--alert);
            box-shadow: 0 8px 16px rgba(245, 158, 11, 0.1);
        }

        /* 备用方案 (Div 2) - Acquire角色 */
        .hub-backup {
            text-align: center;
        }
        .gram-tap {
            background: linear-gradient(135deg, var(--main) 0%, #4f46e5 100%);
            border-radius: var(--radius-lg);
            padding: 5rem 2rem;
            color: #fff;
            box-shadow: var(--shadow-hover);
        }
        .gram-tap .lead-sec {
            color: #fff;
        }
        .gram-tap .ink-desc {
            color: rgba(255,255,255,0.8);
            margin: 0 auto 2.5rem;
        }
        .tap-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--surface);
            color: var(--main);
            padding: 1rem 2.5rem;
            border-radius: 100px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        .tap-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        /* 页脚 */
        .root {
            background: var(--surface-alt);
            padding: 4rem 2rem 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
        }
        .ink-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-prime);
            margin-bottom: 1rem;
        }
        .deck-root {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        .cord-root {
            color: var(--text-mute);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .cord-root:hover {
            color: var(--main);
        }
        .ink-ink {
            color: var(--text-mute);
            font-size: 0.85rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hub-acquire {
                margin: 0 1rem;
                padding: 4rem 0;
            }
        }
        @media (max-width: 768px) {
            .cable {
                flex-direction: column;
                gap: 1rem;
            }
            .deck {
                justify-content: center;
            }
            .spark {
                padding: 4rem 0;
            }
            .spark::before {
                display: none;
            }
            .lead-prime {
                font-size: 2rem;
            }
            .relay-proxy, .tape-alert {
                flex-direction: column;
            }
            .dot-alert {
                margin-bottom: 1rem;
            }
            .gram-tap {
                padding: 3rem 1.5rem;
            }
        }

.cable-apex {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--ink-base);
}
.cable-apex,
.cable-apex *,
.cable-apex *::before,
.cable-apex *::after {
    box-sizing: border-box;
}

.cable-apex [role="navigation"],
.cable-apex div,
.cable-apex section,
.cable-apex article,
.cable-apex aside,
.cable-apex p,
.cable-apex h1,
.cable-apex h2,
.cable-apex h3,
.cable-apex h4,
.cable-apex h5,
.cable-apex h6,
.cable-apex a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.cable-apex p,
.cable-apex h1,
.cable-apex h2,
.cable-apex h3,
.cable-apex h4,
.cable-apex h5,
.cable-apex h6 {
    text-decoration: none;
}

.cable-apex img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.cable-apex {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.cable-apex a.cable-cord {
    --aisite-shell-nav-padding: 0.5rem 0;
    --aisite-shell-nav-margin: 0;
    --aisite-shell-nav-line-height: normal;
    --aisite-shell-nav-display: inline;
    --aisite-shell-nav-height: auto;
    --aisite-shell-nav-min-height: auto;
}

.cable-apex a.cable-cord,
.cable-apex a.cable-cord:hover,
.cable-apex a.cable-cord:focus,
.cable-apex a.cable-cord:active,
.cable-apex a.cable-cord.active,
.cable-apex a.cable-cord[aria-current="page"] {
    background: transparent;
    border: none;
    border-bottom: none;
    box-shadow: none;
    outline: none;
    text-decoration: none;
    padding: var(--aisite-shell-nav-padding, 0);
    margin: var(--aisite-shell-nav-margin, 0);
    line-height: var(--aisite-shell-nav-line-height, normal);
    display: var(--aisite-shell-nav-display, inline);
    height: var(--aisite-shell-nav-height, auto);
    min-height: var(--aisite-shell-nav-min-height, auto);
}

.cable-apex .cable-deck, .cable-apex .cable-cable{
            display: flex;
            flex-wrap: wrap;
        }

.cable-apex .cable-deck > *, .cable-apex .cable-cable > *{
            min-width: 0;
        }

.cable-apex{
            position: fixed;
            top: 0; left: 0; right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 100;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

.cable-apex .cable-cable{
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 2rem;
            align-items: center;
            justify-content: space-between;
        }

.cable-apex .cable-mark{ flex: 0 0 auto; width: 140px; }

.cable-apex .cable-lens-mark{ height: 32px; width: auto; object-fit: contain; }

.cable-apex .cable-deck{ gap: 2rem; align-items: center; }

.cable-apex .cable-cord{
            font-size: 1rem;
            font-weight: 500;
            color: #334155;
            padding: 0.5rem 0;
            position: relative;
        }

.cable-apex .cable-cord::after{
            content: '';
            position: absolute;
            bottom: 0; left: 0;
            width: 0; height: 2px;
            background: #2b35f5;
            transition: all 0.35s ease;
        }

.cable-apex .cable-cord:hover, .cable-apex .cable-cord.active{ color: #2b35f5; }

.cable-apex .cable-cord:hover::after, .cable-apex .cable-cord.active::after{ width: 100%; }

@media (max-width: 768px){.cable-apex .cable-cable{ padding: 1rem; }

.cable-apex .cable-deck{ display: none;  }}

.cable-apex {
    background: rgb(255, 255, 255);
    background-image: none;
}

.base-root {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--ink-base);
}
.base-root,
.base-root *,
.base-root *::before,
.base-root *::after {
    box-sizing: border-box;
}

.base-root [role="navigation"],
.base-root div,
.base-root section,
.base-root article,
.base-root aside,
.base-root p,
.base-root h1,
.base-root h2,
.base-root h3,
.base-root h4,
.base-root h5,
.base-root h6,
.base-root a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.base-root p,
.base-root h1,
.base-root h2,
.base-root h3,
.base-root h4,
.base-root h5,
.base-root h6 {
    text-decoration: none;
}

.base-root img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.base-root {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.base-root a,
.base-root a:hover,
.base-root a:focus,
.base-root a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.base-root .base-earth, .base-root .base-base-cords, .base-root .base-node-base{
            display: flex;
            flex-wrap: wrap;
        }

.base-root .base-earth > *, .base-root .base-base-cords > *, .base-root .base-node-base > *{
            min-width: 0;
        }

.base-root{
            background: #ffffff;
            padding: 6rem 2rem 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

.base-root .base-earth{
            max-width: 1400px;
            margin: 0 auto;
            gap: 4rem;
            justify-content: space-between;
            margin-bottom: 4rem;
        }

.base-root .base-base-brand{ flex: 1 1 300px; }

.base-root .base-lead-brand{
            font-size: 1.5rem;
            font-weight: 800;
            color: #0f172a;
            display: block;
            margin-bottom: 1rem;
        }

.base-root .base-ink-base{ color: #64748b; max-width: 300px; }

.base-root .base-base-cords{ flex: 2 1 600px; justify-content: flex-end; gap: 4rem; }

.base-root .base-node-base{ flex-direction: column; gap: 1rem; }

.base-root .base-lead-base{ font-weight: 700; color: #0f172a; margin-bottom: 0.5rem; display: block; }

.base-root .base-cord-base{ color: #64748b; }

.base-root .base-cord-base:hover{ color: #2b35f5; }

.base-root .base-base-legal{
            max-width: 1400px;
            margin: 0 auto;
            padding-top: 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
        }

.base-root .base-ink-ink{ color: #94a3b8; font-size: 0.875rem; }

@media (max-width: 768px){.base-root .base-base-cords{ justify-content: flex-start; }}