:root {
    --primary: #3b82f6;
    --primary-dark: #1e40af;
    --primary-glow: rgba(59, 130, 246, 0.4);
    --accent: #06b6d4;
    --accent-glow: rgba(6, 182, 212, 0.35);
    --dark-deep: #000000;
    --dark: #020617;
    --dark-surface: #0a0f1e;
    --light: #ffffff;
    --gray-light: #94a3b8;
    --gray-muted: #64748b;
    --border: rgba(255, 255, 255, 0.05);
    --border-glow: rgba(59, 130, 246, 0.15);
    --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background: #030712;
    color: var(--light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.7;
}

#space-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: 0;
}

::selection { background: rgba(59, 130, 246, 0.35); color: var(--light); }

/* ===== 导航 ===== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 0 72px; height: 80px;
    display: flex; align-items: center;
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    background: transparent;
}
.nav::after {
    content: ''; position: absolute; bottom: 0; left: 72px; right: 72px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    opacity: 0; transition: opacity 0.5s ease;
}
.nav.scrolled { background: rgba(2, 6, 23, 0.92); backdrop-filter: blur(28px) saturate(180%); -webkit-backdrop-filter: blur(28px) saturate(180%); height: 72px; }
.nav.scrolled::after { opacity: 1; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1440px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 14px; }
.logo-mark {
    width: 38px; height: 38px; border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 24px var(--primary-glow);
}
.logo-text {
    font-family: var(--font-display); font-size: 1.15rem;
    font-weight: 800; color: var(--light); letter-spacing: 1px;
}
.nav-links { display: flex; gap: 6px; }
.nav-link {
    padding: 8px 18px; color: var(--gray-light); text-decoration: none;
    font-size: 0.88rem; font-weight: 500; border-radius: 8px;
    transition: all 0.25s ease; position: relative;
}
.nav-link:hover { color: var(--light); }
.nav-link.active { color: var(--light); }
.nav-cta {
    padding: 10px 26px;
    background: linear-gradient(135deg, var(--primary), #2563eb);
    border: 1px solid rgba(59, 130, 246, 0.3); border-radius: 10px;
    color: var(--light); font-family: var(--font-body);
    font-size: 0.88rem; font-weight: 600; cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px var(--primary-glow);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 0 36px var(--primary-glow); }

/* ===== Hero ===== */
.hero {
    position: relative; width: 100%; height: 100vh; min-height: 900px;
    overflow: hidden; display: flex; align-items: center;
    z-index: 1;
    pointer-events: none;
}
.hero-content, .hero-actions, .hero-stats, .scroll-indicator {
    pointer-events: auto;
}
.hero::before {
    content: ''; position: absolute; inset: 0; z-index: 3; pointer-events: none;
    background:
        radial-gradient(ellipse 80% 60% at 30% 50%, rgba(59, 130, 246, 0.04), transparent 60%),
        radial-gradient(ellipse 50% 40% at 70% 30%, rgba(6, 182, 212, 0.03), transparent 50%);
}
.particles-container { position: absolute; inset: 0; z-index: 2; pointer-events: none; overflow: hidden; }
.hero-content { position: relative; z-index: 10; max-width: 600px; padding: 0 72px; margin-left: 4vw; }
.hero-kicker {
    display: inline-flex; align-items: center; gap: 14px;
    font-size: 0.68rem; font-weight: 700; color: var(--accent);
    letter-spacing: 4px; text-transform: uppercase;
    margin-bottom: 36px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(6, 182, 212, 0.2);
}
.hero-kicker::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.6); opacity: 0.5; }
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 900; line-height: 1.04; margin-bottom: 36px;
    letter-spacing: -2px; color: var(--light);
}
.hero-title .line { display: block; }
.hero-title .line.accent {
    background: linear-gradient(135deg, #60a5fa, #06b6d4);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 1.08rem; color: var(--gray-light); line-height: 1.85;
    margin-bottom: 56px; max-width: 460px; font-weight: 400;
}
.hero-actions { display: flex; gap: 16px; margin-bottom: 72px; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--primary-dark), #2563eb);
    border: 1px solid rgba(59, 130, 246, 0.25); border-radius: 12px;
    color: var(--light); font-family: var(--font-body);
    font-size: 0.95rem; font-weight: 600; cursor: pointer;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 0 32px var(--primary-glow);
    position: relative; overflow: hidden;
}
.btn-primary::after {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transition: left 0.6s ease;
}
.btn-primary:hover::after { left: 100%; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 48px var(--primary-glow); }
.btn-secondary {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 18px 40px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 12px;
    color: var(--light); font-family: var(--font-body);
    font-size: 0.95rem; font-weight: 500; cursor: pointer;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.16);
    transform: translateY(-3px); box-shadow: 0 0 24px rgba(59, 130, 246, 0.15);
}
.hero-stats { display: flex; gap: 56px; }
.stat { text-align: left; position: relative; }
.stat-value {
    display: block; font-family: var(--font-display);
    font-size: 2.4rem; font-weight: 900; color: var(--light);
    line-height: 1; margin-bottom: 8px; letter-spacing: -1px;
}
.stat-label { font-size: 0.82rem; color: var(--gray-muted); font-weight: 500; letter-spacing: 1px; }
.scroll-indicator {
    position: absolute; bottom: 44px; left: 50%; transform: translateX(-50%);
    z-index: 10; display: flex; flex-direction: column; align-items: center;
    gap: 14px; color: rgba(148, 163, 184, 0.4);
    font-size: 0.65rem; letter-spacing: 4px; text-transform: uppercase;
}
.scroll-line {
    width: 2px; height: 48px; border-radius: 2px;
    background: linear-gradient(to bottom, rgba(59, 130, 246, 0.6), transparent);
    animation: scrollAnim 2.4s ease-in-out infinite;
}
@keyframes scrollAnim {
    0%, 100% { opacity: 0.1; transform: scaleY(0.3); transform-origin: top; }
    50% { opacity: 0.9; transform: scaleY(1); transform-origin: top; }
}
.hero-gradient {
    position: absolute; bottom: 0; left: 0; right: 0; height: 400px;
    background: linear-gradient(to top, var(--dark-deep) 0%, transparent 100%);
    z-index: 5; pointer-events: none;
}

/* ===== 区块通用 ===== */
.section { padding: 160px 72px; position: relative; z-index: 1; }
.section-inner { max-width: 1360px; margin: 0 auto; position: relative; }
.section-header { margin-bottom: 88px; }
.section-header.center { text-align: center; }
.section-header.center .section-subtitle { margin: 0 auto; }
.section-header.center .section-kicker { justify-content: center; }
.section-kicker {
    font-size: 0.66rem; font-weight: 700; color: var(--accent);
    letter-spacing: 4px; text-transform: uppercase;
    margin-bottom: 22px;
    display: inline-flex; align-items: center; gap: 12px;
}
.section-kicker::before {
    content: '//';
    font-family: var(--font-display);
    color: var(--accent); opacity: 0.5;
    font-weight: 700; letter-spacing: 0;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 900; line-height: 1.12; margin-bottom: 20px;
    letter-spacing: -1.5px; color: var(--light);
}
.section-title .accent {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle {
    font-size: 1.02rem; color: var(--gray-light); line-height: 1.8;
    max-width: 580px;
}

/* ===== Vision ===== */
.section-vision {
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 180px; padding-bottom: 180px;
    position: relative; overflow: hidden;
}
.tech-grid-bg {
    position: absolute; inset: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 70%);
}
.vision-header { margin-bottom: 96px; position: relative; }
.vision-header::before {
    content: 'VISION';
    position: absolute; top: -60px; left: 0;
    font-family: var(--font-display); font-size: 8rem; font-weight: 900;
    color: rgba(59, 130, 246, 0.015);
    letter-spacing: 12px; pointer-events: none;
    white-space: nowrap;
}
.vision-title {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 5vw, 4rem);
    font-weight: 900; line-height: 1.1; margin-bottom: 32px;
    letter-spacing: -2px; color: var(--light);
}
.vision-title .block { display: block; }
.vision-title .block.gradient {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.vision-desc {
    font-size: 1.12rem; color: var(--gray-light); line-height: 1.9;
    max-width: 740px;
}
.vision-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pillar-card {
    padding: 56px 40px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.6), rgba(10, 15, 28, 0.5));
    border: 1px solid var(--border); border-radius: 20px;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative; overflow: hidden;
    group: pillar;
}
.pillar-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-glow), transparent);
    opacity: 0; transition: opacity 0.6s ease;
}
.pillar-card::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.pillar-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-8px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 40px rgba(59, 130, 246, 0.06);
}
.pillar-card:hover::before { opacity: 1; }
.pillar-card:hover::after { transform: scaleX(1); }
.pillar-index {
    font-family: var(--font-display); font-size: 3.5rem;
    font-weight: 900; color: rgba(59, 130, 246, 0.08);
    line-height: 1; margin-bottom: -8px;
    transition: color 0.5s ease;
}
.pillar-card:hover .pillar-index { color: rgba(59, 130, 246, 0.18); }
.pillar-title {
    font-size: 1.35rem; font-weight: 800; color: var(--light);
    margin-bottom: 14px; position: relative; z-index: 1;
}
.pillar-desc {
    font-size: 0.93rem; color: var(--gray-light); line-height: 1.8;
    margin-bottom: 36px; position: relative; z-index: 1;
}
.pillar-meta {
    display: flex; align-items: center; gap: 16px;
    font-size: 0.82rem; color: var(--gray-muted);
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative; z-index: 1;
}
.pillar-meta strong {
    font-family: var(--font-display); font-size: 1.6rem; font-weight: 900;
    color: var(--light); margin-right: 4px;
}

/* ===== Capabilities ===== */
.section-capabilities {
    background: rgba(4, 8, 18, 0.75);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 160px; padding-bottom: 180px;
    position: relative; overflow: hidden;
}
.scan-line {
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.4), transparent);
    animation: scanDown 8s linear infinite;
    pointer-events: none; z-index: 1;
}
@keyframes scanDown {
    0% { top: 0; opacity: 0; }
    5% { opacity: 1; }
    95% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}
.cap-grid { display: flex; flex-direction: column; gap: 32px; }
.cap-card {
    display: grid; grid-template-columns: 1fr 1fr; gap: 96px;
    padding: 64px;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.5), rgba(10, 15, 28, 0.4));
    border: 1px solid var(--border); border-radius: 24px;
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    align-items: center; position: relative; overflow: hidden;
}
.cap-card::before {
    content: ''; position: absolute; top: -1px; left: 32px; right: 32px; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.25), transparent);
    opacity: 0; transition: opacity 0.5s ease;
}
.cap-card:hover {
    border-color: rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}
.cap-card:hover::before { opacity: 1; }
.cap-card.reverse { direction: rtl; }
.cap-card.reverse .cap-body { direction: ltr; }
.cap-image { position: relative; }
.cap-canvas {
    width: 100%; height: auto; display: block;
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.08);
}
.cap-tag {
    font-size: 0.64rem; font-weight: 700; color: var(--accent);
    letter-spacing: 3px; text-transform: uppercase;
    margin-bottom: 20px;
    display: inline-flex; align-items: center; gap: 8px;
}
.cap-tag::before {
    content: ''; width: 18px; height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.cap-body h3 {
    font-size: 1.8rem; font-weight: 900; color: var(--light);
    margin-bottom: 16px; letter-spacing: -0.5px;
}
.cap-body p {
    font-size: 0.96rem; color: var(--gray-light); line-height: 1.8;
    margin-bottom: 28px;
}
.cap-features {
    list-style: none; padding: 0; margin-bottom: 32px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.cap-features li {
    font-size: 0.9rem; color: var(--gray-light);
    padding-left: 24px; position: relative;
}
.cap-features li::before {
    content: ''; position: absolute; left: 0; top: 0.55em;
    width: 8px; height: 8px; border-radius: 2px;
    background: var(--primary); opacity: 0.6;
    transform: rotate(45deg);
}
.cap-link {
    font-size: 0.9rem; color: var(--primary); text-decoration: none;
    font-weight: 700; display: inline-flex; align-items: center; gap: 10px;
    transition: gap 0.3s ease; letter-spacing: 0.5px;
}
.cap-link:hover { gap: 16px; color: var(--accent); }

/* ===== Technology ===== */
.section-tech {
    background: rgba(6, 10, 20, 0.7);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 160px; padding-bottom: 180px;
    position: relative; overflow: hidden;
}
.circuit-bg {
    position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
    background-image:
        radial-gradient(circle 2px at 20% 30%, rgba(59, 130, 246, 0.15), transparent),
        radial-gradient(circle 2px at 60% 20%, rgba(6, 182, 212, 0.12), transparent),
        radial-gradient(circle 2px at 80% 60%, rgba(59, 130, 246, 0.1), transparent),
        radial-gradient(circle 2px at 40% 80%, rgba(6, 182, 212, 0.08), transparent),
        linear-gradient(rgba(59, 130, 246, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-canvas {
    width: 100%; height: auto; display: block;
    border-radius: 12px;
    margin-bottom: 24px;
    border: 1px solid rgba(59, 130, 246, 0.06);
}
.tech-card {
    padding: 52px 36px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.5), rgba(8, 12, 24, 0.4));
    border: 1px solid var(--border); border-radius: 20px;
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative; overflow: hidden;
}
.tech-card::after {
    content: ''; position: absolute; top: 0; right: 0; width: 200px; height: 200px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.04), transparent 70%);
    pointer-events: none;
}
.tech-card:hover {
    border-color: rgba(59, 130, 246, 0.18);
    transform: translateY(-10px);
    box-shadow: 0 28px 64px rgba(0, 0, 0, 0.5);
}
.tech-icon {
    width: 60px; height: 60px; border-radius: 16px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.3), rgba(6, 182, 212, 0.15));
    border: 1px solid rgba(59, 130, 246, 0.15);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 28px; color: var(--primary);
    position: relative;
}
.tech-icon::after {
    content: ''; position: absolute; inset: -3px; border-radius: 18px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), transparent);
    z-index: -1; filter: blur(4px);
}
.tech-tag {
    font-size: 0.64rem; font-weight: 700; color: var(--accent);
    letter-spacing: 3px; text-transform: uppercase;
    margin-bottom: 18px;
}
.tech-card h3 {
    font-size: 1.3rem; font-weight: 800; color: var(--light);
    margin-bottom: 12px; line-height: 1.3; letter-spacing: -0.3px;
}
.tech-card p {
    font-size: 0.9rem; color: var(--gray-light); line-height: 1.75;
    margin-bottom: 36px;
}
.tech-metrics { display: flex; gap: 28px; }
.tech-metric {
    text-align: left; padding-left: 12px;
    border-left: 2px solid rgba(59, 130, 246, 0.2);
}
.tech-metric strong {
    display: block; font-family: var(--font-display);
    font-size: 1.6rem; font-weight: 900; color: var(--light);
    margin-bottom: 4px; letter-spacing: -0.5px; line-height: 1;
}
.tech-metric strong small { font-size: 0.7rem; font-weight: 600; color: var(--gray-muted); }
.tech-metric span { font-size: 0.74rem; color: var(--gray-muted); font-weight: 500; }

/* ===== News ===== */
.section-news {
    background: rgba(3, 6, 14, 0.75);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 160px; padding-bottom: 160px;
}
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.5), rgba(8, 12, 24, 0.3));
    border: 1px solid var(--border); border-radius: 18px;
    overflow: hidden; text-decoration: none;
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    display: flex; flex-direction: column;
}
.news-card:hover {
    border-color: rgba(59, 130, 246, 0.15);
    transform: translateY(-6px);
    box-shadow: 0 20px 56px rgba(0, 0, 0, 0.5);
}
.news-image {
    position: relative; height: 200px; overflow: hidden;
}
.news-canvas {
    width: 100%; height: 100%; display: block;
}
.news-card:hover .news-canvas { transform: scale(1.06); }
.news-image::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px;
    background: linear-gradient(to top, rgba(4, 10, 20, 0.9), transparent);
}
.news-tag {
    position: absolute; top: 20px; left: 20px; z-index: 1;
    padding: 5px 12px; border-radius: 6px;
    font-size: 0.66rem; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase;
    background: rgba(6, 182, 212, 0.9); color: #000;
    backdrop-filter: blur(6px);
}
.news-body { padding: 28px 32px 32px; flex: 1; display: flex; flex-direction: column; }
.news-body time {
    font-size: 0.78rem; color: var(--gray-muted); font-weight: 500;
    margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.news-body time::before {
    content: ''; width: 4px; height: 4px; border-radius: 50%;
    background: var(--accent);
}
.news-body h3 {
    font-size: 1.1rem; font-weight: 800; color: var(--light);
    line-height: 1.5; margin-bottom: 12px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-body p {
    font-size: 0.89rem; color: var(--gray-light); line-height: 1.65;
    margin-top: auto;
}
.news-more { text-align: center; margin-top: 64px; }
.btn-outline {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 16px 40px;
    border: 1px solid rgba(59, 130, 246, 0.2); border-radius: 12px;
    color: var(--primary); text-decoration: none;
    font-size: 0.94rem; font-weight: 700;
    transition: all 0.35s ease; letter-spacing: 0.5px;
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.btn-outline:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.15);
}

/* ===== Partners ===== */
.section-partners {
    background: rgba(2, 4, 10, 0.7);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 140px; padding-bottom: 160px;
}
.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border); border-radius: 16px;
    overflow: hidden;
    margin-top: 64px;
}
.partner-logo {
    background: rgba(8, 14, 28, 0.6);
    padding: 40px 28px;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.4s ease;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    position: relative;
}
.partner-logo:hover { background: rgba(15, 23, 42, 0.8); }
.partner-logo:hover::after {
    content: ''; position: absolute; bottom: 0; left: 20%; right: 20%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}
.partner-logo span {
    font-family: var(--font-display);
    font-size: 0.95rem; font-weight: 800;
    color: var(--gray-muted);
    letter-spacing: 2px;
    transition: all 0.4s ease;
}
.partner-logo:hover span { color: var(--light); }

/* ===== Contact ===== */
.section-contact {
    background: rgba(2, 4, 10, 0.8);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    padding-top: 160px; padding-bottom: 180px;
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 112px; }
.contact-content { padding-top: 40px; }
.contact-items { display: flex; flex-direction: column; gap: 16px; margin-top: 52px; }
.contact-item {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 24px 28px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border); border-radius: 14px;
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    position: relative; overflow: hidden;
}
.contact-item::after {
    content: ''; position: absolute; top: 0; right: 0; width: 100px; height: 100px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.04), transparent 70%);
    pointer-events: none;
}
.contact-item:hover {
    border-color: rgba(59, 130, 246, 0.18);
    background: rgba(15, 23, 42, 0.6);
    transform: translateX(4px);
}
.contact-icon {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.3), rgba(6, 182, 212, 0.15));
    border: 1px solid rgba(59, 130, 246, 0.12);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; color: var(--primary);
}
.contact-item strong { font-size: 0.9rem; color: var(--light); margin-bottom: 4px; display: block; font-weight: 700; }
.contact-item p { font-size: 0.88rem; color: var(--gray-light); line-height: 1.5; }
.contact-form {
    padding: 52px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.5), rgba(8, 12, 24, 0.4));
    border: 1px solid var(--border); border-radius: 24px;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    position: relative; overflow: hidden;
}
.contact-form::before {
    content: ''; position: absolute; top: 0; left: 32px; right: 32px; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.25), transparent);
}
.contact-form h3 {
    font-size: 1.3rem; font-weight: 800; color: var(--light);
    margin-bottom: 36px; letter-spacing: -0.3px;
}
.form-field { position: relative; margin-bottom: 28px; }
.form-field input, .form-field textarea {
    width: 100%; padding: 16px 0;
    background: transparent; border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--light); font-family: var(--font-body); font-size: 0.98rem;
    outline: none; transition: border-color 0.4s ease;
}
.form-field textarea { resize: vertical; }
.form-field input:focus, .form-field textarea:focus { border-color: var(--primary); }
.form-field label {
    position: absolute; left: 0; top: 16px;
    color: var(--gray-muted); font-size: 0.95rem;
    pointer-events: none; transition: all 0.3s ease;
}
.form-field input:focus + label,
.form-field input:not(:placeholder-shown) + label,
.form-field textarea:focus + label,
.form-field textarea:not(:placeholder-shown) + label {
    top: -12px; font-size: 0.76rem;
    color: var(--accent); font-weight: 700; letter-spacing: 1px;
}

/* ===== 页脚 ===== */
.footer {
    padding: 80px 72px 44px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    position: relative; z-index: 1;
}
.footer::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
}
.footer-inner { max-width: 1360px; margin: 0 auto; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 56px; }
.footer-brand { max-width: 320px; }
.footer-brand p { font-size: 0.88rem; color: var(--gray-muted); margin-top: 14px; line-height: 1.7; }
.footer-nav { display: flex; gap: 48px; }
.footer-nav a {
    color: var(--gray-muted); text-decoration: none;
    font-size: 0.89rem; font-weight: 500; transition: color 0.3s ease;
}
.footer-nav a:hover { color: var(--light); }
.footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 36px; border-top: 1px solid var(--border);
}
.footer-bottom p { font-size: 0.82rem; color: var(--gray-muted); }
.footer-badges { display: flex; gap: 12px; }
.badge {
    padding: 7px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04); border-radius: 6px;
    font-size: 0.72rem; color: var(--gray-muted);
    letter-spacing: 1px; font-weight: 500;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .vision-pillars { grid-template-columns: 1fr; }
    .cap-card { grid-template-columns: 1fr; gap: 48px; padding: 44px; }
    .cap-card.reverse { direction: ltr; }
    .tech-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 72px; }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .nav { padding: 0 20px; height: 64px; }
    .nav::after { left: 20px; right: 20px; }
    .nav-links { display: none; }
    .hero-content { margin-left: 0; padding: 0 24px; }
    .hero-title { font-size: 2rem; }
    .hero-actions { flex-direction: column; }
    .hero-stats { gap: 36px; }
    .section { padding: 100px 24px; }
    .vision-title { font-size: 2rem; }
    .vision-header::before { font-size: 4rem; top: -30px; }
    .cap-card { padding: 32px; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .footer { padding: 48px 24px 36px; }
    .footer-top { flex-direction: column; gap: 36px; }
    .footer-nav { flex-wrap: wrap; gap: 28px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

/* ===== 复位按钮 ===== */
#view-reset-btn {
    position: fixed; bottom: 40px; left: 50%;
    transform: translateX(-50%) translateY(24px); z-index: 100;
    padding: 14px 32px;
    background: rgba(2, 6, 23, 0.92);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(59, 130, 246, 0.2); border-radius: 100px;
    color: var(--light); font-family: var(--font-body);
    font-size: 0.88rem; font-weight: 700; cursor: pointer;
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    opacity: 0; pointer-events: none; letter-spacing: 1px;
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.1);
}
#view-reset-btn.visible {
    opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: all;
}
#view-reset-btn:hover {
    background: rgba(15, 23, 42, 0.95);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateX(-50%) translateY(-3px);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
}