/* ============================================
   EnerOS · 能枢OS — Light Cyber Tech Style
   浅色 · 炫酷 · 炫技 · 科技感
   ============================================ */

/* ===== 设计令牌 ===== */
:root {
    /* 浅色基底 */
    --bg-base: #eef2fb;
    --bg-soft: #f6f8fd;
    --bg-alt: #f3f6fc;
    --bg-card: rgba(255, 255, 255, 0.72);
    --bg-card-solid: #ffffff;

    /* 渐变品牌色 */
    --blue: #0066ff;
    --indigo: #4f46e5;
    --purple: #7c4dff;
    --cyan: #00b8d4;
    --electric: #00d4aa;
    --pink: #ff4d9d;
    --amber: #ff9500;

    /* 文字 */
    --text-primary: #0a0e27;
    --text-secondary: #4a5170;
    --text-muted: #8b93b0;

    /* 边框 */
    --border: rgba(10, 14, 39, 0.08);
    --border-bright: rgba(0, 102, 255, 0.25);

    /* 渐变 */
    --grad-primary: linear-gradient(135deg, #0066ff 0%, #7c4dff 50%, #00b8d4 100%);
    --grad-text: linear-gradient(120deg, #0066ff 0%, #7c4dff 45%, #ff4d9d 100%);
    --grad-electric: linear-gradient(135deg, #00d4aa 0%, #00b8d4 100%);

    /* 阴影 */
    --shadow-sm: 0 4px 16px rgba(10, 30, 80, 0.06);
    --shadow-md: 0 12px 40px rgba(10, 30, 80, 0.1);
    --shadow-lg: 0 24px 64px rgba(10, 30, 80, 0.15);
    --shadow-glow: 0 8px 32px rgba(0, 102, 255, 0.25);

    /* 字体 */
    --font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --maxw: 1240px;
}

/* ===== 重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* 背景彩色光斑（流动 blob） */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.35;
    z-index: -2;
    pointer-events: none;
}
body::before {
    width: 520px; height: 520px;
    background: radial-gradient(circle, #0066ff, transparent 70%);
    top: -8%; left: -10%;
    animation: floatBlob 22s ease-in-out infinite;
}
body::after {
    width: 580px; height: 580px;
    background: radial-gradient(circle, #7c4dff, transparent 70%);
    top: 55%; right: -15%;
    animation: floatBlob 26s ease-in-out infinite reverse;
}
@keyframes floatBlob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -40px) scale(1.08); }
    66% { transform: translate(-40px, 50px) scale(0.94); }
}

/* 网格底纹（固定） */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(0, 102, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 255, 0.045) 1px, transparent 1px);
    background-size: 52px 52px;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 25%, transparent 78%);
    mask-image: radial-gradient(ellipse at center, #000 25%, transparent 78%);
    pointer-events: none;
}

/* ===== 滚动进度条 ===== */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0%;
    background: var(--grad-primary);
    z-index: 10000;
    box-shadow: 0 0 12px rgba(0, 102, 255, 0.6);
    transition: width 0.1s linear;
}

/* ===== 加载动画 ===== */
.loader {
    position: fixed;
    inset: 0;
    background: var(--bg-base);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.loader-core { position: relative; display: flex; align-items: center; justify-content: center; }
.loader-svg { width: 90px; height: 90px; transform: rotate(-90deg); }
.loader-ring { fill: none; stroke: rgba(0,102,255,0.12); stroke-width: 4; }
.loader-progress {
    fill: none;
    stroke: url(#loaderGrad);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 251.2;
    stroke-dashoffset: 251.2;
    animation: loadDash 1.4s ease-out forwards;
}
@keyframes loadDash { to { stroke-dashoffset: 0; } }
.loader-text {
    position: absolute;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
}

/* ===== 通用容器 ===== */
.section {
    padding: 110px 32px;
    position: relative;
    overflow: hidden;
}
.section-alt { background: var(--bg-alt); }
.container { max-width: var(--maxw); margin: 0 auto; }

.section-head {
    text-align: center;
    margin-bottom: 64px;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}
.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--blue);
    letter-spacing: 2px;
    margin-bottom: 18px;
    text-transform: uppercase;
    padding: 6px 16px;
    background: rgba(0, 102, 255, 0.07);
    border: 1px solid var(--border-bright);
    border-radius: 100px;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(30px, 4.2vw, 50px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--text-primary);
}
.grad-text {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: 200% center; } }
.section-desc {
    margin-top: 22px;
    color: var(--text-secondary);
    font-size: 16.5px;
    line-height: 1.75;
}
.section-sub-head {
    text-align: center;
    margin: 80px 0 36px;
}
.section-sub-head h3 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}
.section-sub-head p { color: var(--text-secondary); font-size: 15px; }

/* ===== 导航 ===== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: all 0.4s ease;
    padding: 18px 0;
}
.nav.scrolled { padding: 10px 0; }
.nav.scrolled .nav-inner {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}
.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border-radius: 100px;
    transition: all 0.4s ease;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    transition: opacity 0.3s ease;
}
.nav-logo:hover .logo-text { letter-spacing: 0; }

/* ===== 动态 Logo（能量中枢）===== */
.logo-mark {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 4px 14px rgba(0, 102, 255, 0.35));
}
.logo-svg { display: block; overflow: visible; }

/* 中层轨道：缓慢自转 */
.logo-orbit {
    transform-box: fill-box;
    transform-origin: center;
    animation: logoSpin 9s linear infinite;
}
@keyframes logoSpin { to { transform: rotate(360deg); } }

/* 内核闪电：呼吸缩放 */
.logo-bolt {
    transform-box: fill-box;
    transform-origin: center;
    animation: logoPulse 2.6s ease-in-out infinite;
}
@keyframes logoPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.88; }
}

/* 中心高光：闪烁 */
.logo-core {
    transform-box: fill-box;
    transform-origin: center;
    animation: coreFlicker 1.8s ease-in-out infinite;
}
@keyframes coreFlicker {
    0%, 100% { opacity: 1; r: 2.4; }
    50% { opacity: 0.5; r: 3; }
}

/* hover：整体加速旋转 */
.nav-logo:hover .logo-orbit { animation-duration: 2.2s; }
.nav-logo:hover .logo-bolt { animation-duration: 0.9s; }

.logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    transition: letter-spacing 0.4s ease;
}
.logo-text span {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== 导航链接（滑动指示器 + scrollspy 高亮）===== */
.nav-links-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.nav-indicator {
    position: absolute;
    top: 50%;
    left: 0;
    height: 38px;
    width: 0;
    transform: translate(0, -50%) scale(0.6);
    background: linear-gradient(135deg, rgba(0,102,255,0.12), rgba(124,77,255,0.12));
    border: 1px solid var(--border-bright);
    border-radius: 100px;
    opacity: 0;
    transition: left 0.45s cubic-bezier(0.4,0,0.2,1),
                width 0.45s cubic-bezier(0.4,0,0.2,1),
                opacity 0.3s ease,
                transform 0.45s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.18);
    z-index: 0;
}
.nav-indicator.active {
    opacity: 1;
    transform: translate(0, -50%) scale(1);
}
/* 指示器内的能量流光 */
.nav-indicator::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 100px;
    background: linear-gradient(90deg, transparent, rgba(0,102,255,0.25), transparent);
    background-size: 200% 100%;
    animation: indicatorFlow 2.5s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.nav-indicator.active::after { opacity: 1; }
@keyframes indicatorFlow {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    position: relative;
    z-index: 1;
}
.nav-links a {
    padding: 9px 15px;
    font-size: 14.5px;
    color: var(--text-secondary);
    border-radius: 100px;
    transition: color 0.3s ease;
    font-weight: 500;
    position: relative;
    z-index: 1;
}
.nav-links a:hover { color: var(--blue); }
/* 当前活动项：文字提亮变粗，体现"状态跟到哪" */
.nav-links a.active {
    color: var(--blue);
    font-weight: 700;
}
/* ===== 语言切换 ===== */
.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid var(--border);
    border-radius: 100px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}
.lang-switch::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 100px;
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(124,77,255,0.06));
    opacity: 0;
    transition: opacity 0.3s ease;
}
.lang-switch:hover::before { opacity: 1; }
.lang-switch:hover {
    color: var(--blue);
    border-color: var(--border-bright);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}
.lang-switch-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    position: relative;
    z-index: 1;
}
.lang-switch-text {
    position: relative;
    z-index: 1;
}

.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--grad-primary);
    color: #fff !important;
    font-weight: 600;
    font-size: 14px;
    border-radius: 100px;
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(0, 102, 255, 0.4); }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.nav-toggle span {
    width: 22px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: 0.3s;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 14px;
    font-size: 15.5px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.btn-primary {
    background: var(--grad-primary);
    color: #fff;
    box-shadow: 0 8px 32px rgba(0, 102, 255, 0.4), inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 48px rgba(0, 102, 255, 0.55); }
.btn-ghost {
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
    border: 1px solid var(--border-bright);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { background: #fff; border-color: var(--blue); transform: translateY(-3px); box-shadow: var(--shadow-md); }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 130px 32px 80px;
    position: relative;
    overflow: hidden;
}
#gridCanvas {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    z-index: 0;
    opacity: 0.6;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}
.hero-glow-1 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(0,102,255,0.4), transparent 70%);
    top: 10%; left: 15%;
    animation: floatBlob 18s ease-in-out infinite;
}
.hero-glow-2 {
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(124,77,255,0.35), transparent 70%);
    bottom: 5%; right: 12%;
    animation: floatBlob 22s ease-in-out infinite reverse;
}
.hero-content { position: relative; z-index: 2; max-width: 880px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-bright);
    font-size: 13px;
    color: var(--blue);
    font-family: var(--font-mono);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.badge-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--electric);
    box-shadow: 0 0 12px var(--electric);
    animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(38px, 6vw, 76px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -2px;
    margin-bottom: 26px;
    color: var(--text-primary);
}
.hero-subtitle {
    font-size: clamp(15px, 1.5vw, 18px);
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0 auto 38px;
    line-height: 1.8;
}
.hero-subtitle .hl, .hl { color: var(--blue); font-weight: 600; }
.hl-dark { color: var(--indigo); font-weight: 700; }
.hero-cta {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 700;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.stat-label {
    font-size: 12.5px;
    color: var(--text-muted);
    margin-top: 8px;
    letter-spacing: 0.5px;
}
.stat-divider {
    width: 1px; height: 40px;
    background: linear-gradient(180deg, transparent, var(--border-bright), transparent);
}
.scroll-hint {
    position: absolute;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 2px;
    z-index: 2;
}
.scroll-line {
    width: 1px; height: 36px;
    background: linear-gradient(180deg, var(--blue), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown { 0%,100% { transform: scaleY(0.3); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } }

/* ===== 问题卡片 ===== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px 26px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    overflow: hidden;
}
.problem-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(0,102,255,0.08), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.problem-card:hover::before { opacity: 1; }
.problem-card:hover { border-color: var(--border-bright); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.problem-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0,102,255,0.1), rgba(124,77,255,0.1));
    border: 1px solid var(--border-bright);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    margin-bottom: 20px;
    transition: transform 0.4s ease;
}
.problem-card:hover .problem-icon { transform: scale(1.08) rotate(-5deg); }
.problem-card h3 { font-size: 19px; margin-bottom: 10px; font-weight: 600; position: relative; z-index: 1; }
.problem-card p { color: var(--text-secondary); font-size: 14.5px; position: relative; z-index: 1; }
.problem-card-answer {
    background: linear-gradient(135deg, rgba(0,102,255,0.1), rgba(124,77,255,0.08));
    border-color: var(--blue);
}
.problem-icon-answer { background: var(--grad-primary); color: #fff; border: none; }

/* ===== 哲学卡片 ===== */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 22px;
}
.philo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 34px 30px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.philo-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(124,77,255,0.1), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.philo-card:hover::before { opacity: 1; }
.philo-card:hover { border-color: var(--border-bright); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.philo-num {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--blue);
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.philo-card h3 {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    margin-bottom: 6px;
    position: relative; z-index: 1;
}
.philo-zh {
    font-size: 14px;
    color: var(--purple);
    font-weight: 600;
    margin-bottom: 14px;
    position: relative; z-index: 1;
}
.philo-card p { color: var(--text-secondary); font-size: 14.5px; line-height: 1.7; position: relative; z-index: 1; }
.philo-card-accent {
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(124,77,255,0.06));
    border-color: var(--border-bright);
}

/* ===== 架构 ===== */
.arch-dual {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: stretch;
    margin-bottom: 60px;
}
.arch-domain {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
}
.arch-domain:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.arch-domain-general { border-top: 3px solid var(--blue); }
.arch-domain-realtime { border-top: 3px solid var(--electric); }
.arch-domain-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.arch-domain-tag {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    color: var(--blue);
}
.arch-domain-tag-rt { color: var(--electric); }
.arch-domain-en {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
}
.arch-domain-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    margin-bottom: 18px;
}
.arch-task {
    padding: 11px 16px;
    background: rgba(0,102,255,0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}
.arch-domain-realtime .arch-task { background: rgba(0,212,170,0.06); }
.arch-task:hover { transform: translateX(4px); border-color: var(--border-bright); }
.arch-domain-latency {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 14px;
    border-top: 1px dashed var(--border);
}
.arch-domain-latency strong { color: var(--blue); }
.arch-domain-realtime .arch-domain-latency strong { color: var(--electric); }
.arch-gateway {
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(124,77,255,0.06));
    border: 1px solid var(--border-bright);
    border-radius: 20px;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
    color: var(--blue);
    min-width: 180px;
    box-shadow: var(--shadow-md);
}
.arch-gateway-label {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.4;
}
.arch-gateway-label span { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.arch-gateway-sub {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 160px;
}

.arch-principles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 20px;
}
.principle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px 20px;
    text-align: center;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}
.principle:hover { transform: translateY(-4px); border-color: var(--border-bright); box-shadow: var(--shadow-md); }
.principle-icon { font-size: 26px; margin-bottom: 12px; }
.principle h4 { font-size: 14.5px; font-weight: 600; margin-bottom: 8px; }
.principle p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* 分层架构 */
.layer-stack { display: flex; flex-direction: column; gap: 10px; }
.layer {
    display: flex;
    align-items: stretch;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateX(-20px);
    animation: layerIn 0.6s ease forwards;
}
@keyframes layerIn { to { opacity: 1; transform: translateX(0); } }
.layer:hover { transform: translateX(8px); box-shadow: var(--shadow-md); }
.layer-app { animation-delay: 0.05s; border-left: 3px solid var(--pink); }
.layer-runtime { animation-delay: 0.15s; border-left: 3px solid var(--purple); }
.layer-kernel { animation-delay: 0.25s; border-left: 3px solid var(--blue); background: linear-gradient(135deg, rgba(0,102,255,0.06), var(--bg-card)); }
.layer-gateway { animation-delay: 0.35s; border-left: 3px solid var(--amber); }
.layer-infra { animation-delay: 0.45s; border-left: 3px solid var(--electric); }
.layer-label {
    width: 200px;
    flex-shrink: 0;
    padding: 22px 20px;
    background: rgba(10,14,39,0.03);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}
.layer-name { font-family: var(--font-display); font-size: 15px; font-weight: 600; color: var(--text-primary); }
.layer-en { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); letter-spacing: 0.5px; }
.layer-items {
    padding: 16px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    flex: 1;
}
.layer-item {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 100px;
    background: rgba(0,102,255,0.06);
    border: 1px solid var(--border);
    color: var(--blue);
    transition: all 0.25s ease;
}
.layer-item:hover { background: var(--blue); color: #fff; transform: translateY(-2px); }

/* ===== 核心能力 ===== */
.cap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.cap-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 26px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.cap-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(0,212,170,0.12), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.cap-card:hover::before { opacity: 1; }
.cap-card:hover { border-color: var(--border-bright); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cap-visual {
    background: linear-gradient(135deg, rgba(0,102,255,0.05), rgba(0,212,170,0.05));
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
    margin-bottom: 20px;
    color: var(--blue);
    transition: all 0.4s ease;
    position: relative; z-index: 1;
}
.cap-card:hover .cap-visual { color: var(--purple); transform: scale(1.03); }
.cap-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin-bottom: 10px; position: relative; z-index: 1; }
.cap-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; position: relative; z-index: 1; }

/* ===== Crate 索引 ===== */
.crate-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}
.crate-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.crate-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--grad-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.crate-card:hover::before { opacity: 1; }
.crate-card:hover { transform: translateY(-4px); border-color: var(--border-bright); box-shadow: var(--shadow-md); }
.crate-card-feature {
    background: linear-gradient(135deg, rgba(0,102,255,0.06), rgba(124,77,255,0.04));
    border-color: var(--border-bright);
}
.crate-card-feature::before { opacity: 1; }
.crate-head { display: flex; flex-direction: column; gap: 3px; margin-bottom: 10px; }
.crate-name { font-family: var(--font-mono); font-size: 15px; font-weight: 600; color: var(--blue); }
.crate-path { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.crate-desc { font-size: 13.5px; color: var(--text-secondary); margin-bottom: 14px; line-height: 1.5; }
.crate-types { display: flex; flex-wrap: wrap; gap: 6px; }
.crate-types span {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 6px;
    background: rgba(0,102,255,0.07);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.crate-soon {
    background: rgba(255,149,0,0.1) !important;
    color: var(--amber) !important;
    border-color: rgba(255,149,0,0.3) !important;
    font-style: italic;
}

/* ===== 应用场景 ===== */
.scenario-list { display: flex; flex-direction: column; gap: 14px; max-width: 920px; margin: 0 auto; }
.scenario-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px 28px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    overflow: hidden;
}
.scenario-item::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 0;
    background: var(--grad-primary);
    transition: width 0.4s ease;
}
.scenario-item:hover::before { width: 4px; }
.scenario-item:hover { transform: translateX(8px); border-color: var(--border-bright); box-shadow: var(--shadow-md); }
.scenario-icon {
    font-size: 30px;
    width: 56px; height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(124,77,255,0.08));
    border-radius: 14px;
    border: 1px solid var(--border-bright);
}
.scenario-body { flex: 1; }
.scenario-body h3 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 4px;
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}
.scenario-agent {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--blue);
    font-weight: 500;
    padding: 2px 8px;
    background: rgba(0,102,255,0.07);
    border-radius: 6px;
}
.scenario-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.scenario-arrow {
    color: var(--blue);
    font-size: 22px;
    opacity: 0.4;
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.scenario-item:hover .scenario-arrow { opacity: 1; transform: translateX(4px); }

/* ===== 对比表 ===== */
.compare-table {
    max-width: 980px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}
.compare-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
}
.compare-row + .compare-row { border-top: 1px solid var(--border); }
.compare-row-head { background: rgba(10,14,39,0.03); }
.compare-cell {
    padding: 16px 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
}
.compare-cell-dim { font-weight: 600; color: var(--text-primary); }
.compare-cell-enos {
    background: linear-gradient(135deg, rgba(0,102,255,0.06), rgba(124,77,255,0.04));
    font-weight: 600;
}
.compare-row-head .compare-cell {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14.5px;
}
.compare-row-head .compare-cell-enos { color: var(--blue); }
.badge {
    display: inline-block;
    padding: 4px 11px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}
.badge-good { background: rgba(0,212,170,0.15); color: #008f73; }
.badge-mid { background: rgba(255,149,0,0.15); color: #b36b00; }
.badge-bad { background: rgba(255,77,157,0.12); color: #c9337a; }

/* ===== 终端 ===== */
.terminal {
    max-width: 860px;
    margin: 0 auto;
    background: #0d1326;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0,102,255,0.2);
}
.terminal-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: #0a0f1f;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #8b93b0;
}
.terminal-body { padding: 22px 24px; font-family: var(--font-mono); font-size: 13.5px; line-height: 1.9; }
.term-line { color: #c8d0e8; white-space: pre-wrap; }
.term-prompt { color: #00d4aa; font-weight: 600; }
.term-comment { color: #6b7390; font-style: italic; }
.term-out { color: #8b93b0; }
.term-ok { color: #00d4aa; }

/* ===== 路线图时间线 ===== */
.roadmap-timeline {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
    padding-left: 8px;
}
.road-line {
    position: absolute;
    left: 22px;
    top: 12px; bottom: 12px;
    width: 2px;
    background: linear-gradient(180deg, var(--blue), var(--purple), var(--electric));
}
.road-item {
    position: relative;
    padding-left: 64px;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}
.roadmap-timeline.visible .road-item { opacity: 1; transform: translateX(0); }
.roadmap-timeline.visible .road-item { transition-delay: calc(var(--i) * 0.06s); }
.road-marker {
    position: absolute;
    left: 6px; top: 4px;
    width: 34px; height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    z-index: 2;
    border: 3px solid var(--bg-base);
}
.road-done {
    background: var(--grad-primary);
    color: #fff;
    box-shadow: 0 0 0 4px rgba(0,102,255,0.12), 0 0 16px rgba(0,102,255,0.3);
}
.road-current {
    background: var(--grad-electric);
    color: #fff;
    box-shadow: 0 0 0 4px rgba(0,212,170,0.18), 0 0 20px rgba(0,212,170,0.4);
    animation: pulseMarker 2s ease-in-out infinite;
}
@keyframes pulseMarker { 0%,100% { box-shadow: 0 0 0 4px rgba(0,212,170,0.18), 0 0 20px rgba(0,212,170,0.4); } 50% { box-shadow: 0 0 0 8px rgba(0,212,170,0.1), 0 0 28px rgba(0,212,170,0.5); } }
.road-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px 22px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}
.road-content:hover { border-color: var(--border-bright); transform: translateX(6px); box-shadow: var(--shadow-md); }
.road-phase {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue);
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.road-item-final .road-phase { color: var(--electric); }
.road-content h4 { font-family: var(--font-display); font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.road-content p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 未来趋势 ===== */
.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.future-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 30px 28px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.future-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(255,77,157,0.1), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.future-card:hover::before { opacity: 1; }
.future-card:hover { border-color: var(--border-bright); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.future-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--purple);
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: 1px;
    padding: 4px 12px;
    background: rgba(124,77,255,0.08);
    border-radius: 100px;
    display: inline-block;
}
.future-tag-accent { color: var(--electric); background: rgba(0,212,170,0.1); }
.future-card h3 { font-family: var(--font-display); font-size: 20px; font-weight: 600; margin-bottom: 12px; position: relative; z-index: 1; }
.future-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.75; position: relative; z-index: 1; }
.future-card-accent {
    background: linear-gradient(135deg, rgba(124,77,255,0.1), rgba(0,212,170,0.06));
    border-color: var(--border-bright);
}

/* ===== 技术原则 ===== */
.tech-principles {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 880px;
    margin: 0 auto;
}
.tp-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px 24px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}
.tp-item:hover { transform: translateX(8px); border-color: var(--border-bright); box-shadow: var(--shadow-md); }
.tp-key {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--blue);
    flex-shrink: 0;
    min-width: 140px;
    font-size: 15px;
}
.tp-val { font-size: 14px; color: var(--text-secondary); }

.ack {
    max-width: 720px;
    margin: 60px auto 0;
    text-align: center;
}
.ack h3 { font-family: var(--font-display); font-size: 18px; margin-bottom: 20px; color: var(--text-secondary); font-weight: 500; }
.ack-items { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.ack-item {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 24px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--blue);
    transition: all 0.3s ease;
}
.ack-item:hover { transform: translateY(-3px); border-color: var(--blue); box-shadow: var(--shadow-md); }
.ack-item small { font-family: var(--font-body); font-size: 11px; color: var(--text-muted); margin-top: 4px; font-weight: 400; }

/* ===== 最后 CTA ===== */
.section-cta-final { padding: 100px 32px; }
.cta-final {
    position: relative;
    text-align: center;
    padding: 80px 40px;
    border-radius: 32px;
    background:
        linear-gradient(135deg, rgba(0,102,255,0.07), rgba(124,77,255,0.07)),
        var(--bg-card);
    border: 1px solid var(--border-bright);
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}
.cta-glow {
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(0,102,255,0.08), transparent, rgba(124,77,255,0.08), transparent, rgba(0,212,170,0.08), transparent);
    animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.cta-final > * { position: relative; z-index: 1; }
.cta-final h2 {
    font-family: var(--font-display);
    font-size: clamp(30px, 4.5vw, 52px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 18px;
    color: var(--text-primary);
}
.cta-final p { color: var(--text-secondary); font-size: 16px; margin-bottom: 32px; }
.cta-final-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 64px 32px 36px;
    background: var(--bg-soft);
}
.footer-grid {
    max-width: var(--maxw);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-tagline { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; }
.footer-col h4 {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 600;
}
.footer-col ul li { margin-bottom: 9px; }
.footer-col a {
    font-size: 13.5px;
    color: var(--text-secondary);
    transition: color 0.3s;
}
.footer-col a:hover { color: var(--blue); }
.footer-company {
    max-width: var(--maxw);
    margin: 0 auto;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-company-name {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}
.footer-company-en { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; letter-spacing: 0.5px; }
.footer-copy { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }

/* ===== 滚动显现动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.4,0,0.2,1);
    transition-delay: var(--d, 0s);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
    .arch-dual { grid-template-columns: 1fr; }
    .arch-gateway { flex-direction: row; min-width: auto; padding: 16px 20px; }
    .arch-gateway-label { text-align: left; }
    .arch-gateway-sub { max-width: none; }
    .layer-label { width: 150px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links-wrap {
        position: fixed;
        top: 70px; right: -110%;
        width: 260px;
        transition: right 0.4s ease;
        z-index: 1001;
    }
    .nav-links-wrap.open { right: 16px; }
    /* 移动端隐藏滑动指示器（改用文字高亮）*/
    .nav-indicator { display: none !important; }
    .nav-links {
        position: static;
        flex-direction: column;
        width: 100%;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(24px);
        padding: 24px;
        border-radius: 20px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        align-items: stretch;
        gap: 2px;
    }
    .nav-links a.active { background: rgba(0, 102, 255, 0.1); }
    .nav-toggle { display: flex; }
    .nav-cta span { display: none; }
    .section { padding: 80px 20px; }
    .layer { flex-direction: column; }
    .layer-label { width: 100%; flex-direction: row; gap: 12px; align-items: center; border-right: none; border-bottom: 1px solid var(--border); }
    .compare-row { grid-template-columns: 1fr 1fr; }
    .compare-cell { font-size: 12.5px; padding: 12px 14px; }
    .compare-row-head .compare-cell:nth-child(4) { display: none; }
    .scenario-item { flex-direction: column; align-items: flex-start; gap: 14px; }
    .scenario-arrow { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-stats { gap: 18px; }
    .stat-divider { display: none; }
}
@media (max-width: 500px) {
    .hero-cta, .cta-final-btns { flex-direction: column; align-items: stretch; }
    .btn { justify-content: center; }
    .tp-item { flex-direction: column; align-items: flex-start; gap: 6px; }
    .tp-key { min-width: auto; }
    .arch-gateway { flex-direction: column; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}