/* ============================================================
   熠阳科技 · 官网样式
   主题：暗色科技感 · 青蓝霓虹 + 紫电渐变 · 玻璃拟态
   ============================================================ */

:root {
    /* 色板 */
    --bg-0: #050810;
    --bg-1: #0a0e1a;
    --bg-2: #0f1424;
    --bg-card: rgba(16, 22, 38, 0.55);
    --bg-card-hover: rgba(20, 28, 48, 0.75);

    --fg-0: #e8edf7;
    --fg-1: #b6c0d6;
    --fg-2: #7c87a3;
    --fg-3: #4a536b;

    --line: rgba(124, 140, 211, 0.14);
    --line-strong: rgba(124, 140, 211, 0.28);

    --accent: #00f0ff;        /* 青蓝 */
    --accent-2: #7c5cff;      /* 电紫 */
    --accent-3: #ff5ca8;      /* 桃红 */
    --accent-warm: #ffb84d;   /* 暖金 */

    --grad-primary: linear-gradient(135deg, #00f0ff 0%, #7c5cff 100%);
    --grad-warm: linear-gradient(135deg, #ff5ca8 0%, #ffb84d 100%);
    --grad-text: linear-gradient(120deg, #00f0ff 0%, #7c5cff 50%, #ff5ca8 100%);

    --shadow-glow: 0 0 40px rgba(0, 240, 255, 0.18);
    --shadow-card: 0 20px 60px -20px rgba(0, 0, 0, 0.6);

    --radius: 14px;
    --radius-lg: 22px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);

    --container: 1240px;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-0);
    color: var(--fg-0);
    line-height: 1.7;
    font-weight: 300;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
    cursor: none;
}

@media (max-width: 960px) {
    body { cursor: auto; }
    .cursor-dot, .cursor-ring { display: none !important; }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
input, textarea, select, button { font: inherit; color: inherit; }

::selection { background: var(--accent); color: var(--bg-0); }

/* ==================== 自定义光标 ==================== */
.cursor-dot, .cursor-ring {
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9999;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}
.cursor-dot {
    width: 6px; height: 6px;
    background: var(--accent);
    transition: transform .12s var(--ease), background .25s;
}
.cursor-ring {
    width: 36px; height: 36px;
    border: 1.5px solid rgba(0, 240, 255, 0.5);
    transition: transform .25s var(--ease), width .25s, height .25s, border-color .25s;
}
.cursor-ring.hover {
    width: 64px; height: 64px;
    border-color: var(--accent-2);
    background: rgba(124, 92, 255, 0.06);
}

/* ==================== 加载动画 ==================== */
.loader {
    position: fixed;
    inset: 0;
    background: var(--bg-0);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    transition: opacity .6s var(--ease), visibility .6s;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.loader-grid {
    display: grid;
    grid-template-columns: repeat(3, 14px);
    gap: 6px;
}
.loader-grid span {
    width: 14px; height: 14px;
    background: var(--accent);
    border-radius: 3px;
    animation: loaderPulse 1.4s infinite ease-in-out;
}
.loader-grid span:nth-child(1){ animation-delay: 0s; }
.loader-grid span:nth-child(2){ animation-delay: .1s; }
.loader-grid span:nth-child(3){ animation-delay: .2s; }
.loader-grid span:nth-child(4){ animation-delay: .1s; }
.loader-grid span:nth-child(5){ animation-delay: .2s; }
.loader-grid span:nth-child(6){ animation-delay: .3s; }
.loader-grid span:nth-child(7){ animation-delay: .2s; }
.loader-grid span:nth-child(8){ animation-delay: .3s; }
.loader-grid span:nth-child(9){ animation-delay: .4s; }
@keyframes loaderPulse {
    0%, 80%, 100% { opacity: .2; transform: scale(.7); }
    40% { opacity: 1; transform: scale(1); background: var(--accent-2); }
}
.loader-text {
    font-family: 'Orbitron', monospace;
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--fg-2);
    text-transform: uppercase;
}

/* ==================== 背景层 ==================== */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: -3;
    background:
        linear-gradient(rgba(124, 92, 255, 0.04) 1px, transparent 1px) 0 0 / 60px 60px,
        linear-gradient(90deg, rgba(0, 240, 255, 0.04) 1px, transparent 1px) 0 0 / 60px 60px,
        radial-gradient(ellipse at 20% 0%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(124, 92, 255, 0.1) 0%, transparent 50%),
        var(--bg-0);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    animation: gridShift 30s linear infinite;
}
@keyframes gridShift {
    from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0; }
    to   { background-position: 60px 60px, 60px 60px, 0 0, 0 0, 0 0; }
}
.bg-noise {
    position: fixed;
    inset: 0;
    z-index: -2;
    opacity: .035;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.bg-particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: .7;
}

/* ==================== 容器 ==================== */
.section {
    max-width: var(--container);
    margin: 0 auto;
    padding: 120px 32px;
    position: relative;
}
@media (max-width: 768px) {
    .section { padding: 80px 20px; }
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}
.section-kicker {
    display: inline-block;
    font-family: 'Orbitron', monospace;
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 14px;
    padding: 4px 12px;
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 100px;
    background: rgba(0, 240, 255, 0.05);
}
.section-title {
    font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: 1px;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 18px;
}
.section-desc {
    color: var(--fg-2);
    font-size: 16px;
    line-height: 1.8;
}

.gradient-text {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 100px;
    font-weight: 500;
    font-size: 15px;
    letter-spacing: .5px;
    transition: all .35s var(--ease);
    position: relative;
    overflow: hidden;
    cursor: none;
}
.btn svg { transition: transform .35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn-primary {
    background: var(--grad-primary);
    color: #06122a;
    box-shadow: 0 8px 32px -8px rgba(0, 240, 255, .5), 0 4px 16px -4px rgba(124, 92, 255, .4);
}
.btn-primary:hover {
    color: #06122a;
    transform: translateY(-2px);
    box-shadow: 0 14px 40px -8px rgba(0, 240, 255, .7), 0 8px 24px -4px rgba(124, 92, 255, .5);
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.4), transparent);
    transition: left .6s var(--ease);
}
.btn-primary:hover::after { left: 100%; }
.btn-ghost {
    background: rgba(255,255,255,.03);
    color: var(--fg-0);
    border: 1px solid var(--line-strong);
    backdrop-filter: blur(10px);
}
.btn-ghost:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(0,240,255,.06);
    transform: translateY(-2px);
}
.btn-block { width: 100%; justify-content: center; }

/* ==================== 导航 ==================== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: all .4s var(--ease);
    padding: 24px 0;
}
.nav.scrolled {
    padding: 14px 0;
    background: rgba(5, 8, 16, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
}
.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand-mark {
    display: flex;
    filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.5));
    transition: transform .4s var(--ease);
}
.brand:hover .brand-mark { transform: rotate(60deg); }
.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.brand-text strong {
    font-family: 'Orbitron', sans-serif;
    font-size: 17px;
    letter-spacing: 1px;
    color: var(--fg-0);
}
.brand-text small {
    font-family: 'Orbitron', monospace;
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--fg-2);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-links > a {
    padding: 8px 16px;
    font-size: 14px;
    color: var(--fg-1);
    position: relative;
    border-radius: 8px;
    transition: all .25s var(--ease);
}
.nav-links > a::before {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--grad-primary);
    transition: width .3s var(--ease);
}
.nav-links > a:hover { color: var(--fg-0); }
.nav-links > a:hover::before { width: 18px; }
.nav-cta {
    margin-left: 12px;
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.4);
    color: var(--accent) !important;
}
.nav-cta:hover {
    background: var(--grad-primary);
    color: #06122a !important;
}
.nav-cta::before { display: none; }

.nav-toggle {
    display: none;
    width: 32px; height: 32px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
}
.nav-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--fg-0);
    margin: 0 auto;
    transition: all .3s var(--ease);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 0; right: 0;
        width: 80%;
        max-width: 340px;
        height: 100vh;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 8px;
        padding: 40px;
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--line);
        transform: translateX(100%);
        transition: transform .4s var(--ease);
    }
    .nav-links.open { transform: translateX(0); }
    .nav-links > a { width: 100%; padding: 14px 16px; font-size: 16px; }
    .nav-cta { margin: 12px 0 0; }
}

/* ==================== Hero ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 140px 32px 80px;
    overflow: hidden;
}
.hero-inner {
    max-width: 1000px;
    text-align: center;
    position: relative;
    z-index: 2;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 100px;
    background: rgba(0, 240, 255, 0.05);
    backdrop-filter: blur(10px);
    font-size: 13px;
    color: var(--fg-1);
    margin-bottom: 32px;
    letter-spacing: .5px;
}
.pulse-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.6);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.6); }
    70% { box-shadow: 0 0 0 12px rgba(0, 240, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}
.hero-title {
    font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
    font-size: clamp(36px, 7vw, 84px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -1px;
    margin-bottom: 28px;
}
.hero-title .line { display: block; }
.hero-subtitle {
    font-size: clamp(15px, 1.5vw, 18px);
    color: var(--fg-1);
    line-height: 1.9;
    margin-bottom: 40px;
}
.hl {
    color: var(--accent);
    font-weight: 500;
    position: relative;
}
.hl::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 100%; height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 80px;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 32px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    max-width: 800px;
    margin: 0 auto;
}
.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}
.stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -12px; top: 15%;
    width: 1px; height: 70%;
    background: var(--line);
}
.stat strong {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
    display: inline-block;
}
.stat .plus {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(20px, 2vw, 28px);
    color: var(--accent-2);
    margin-left: 2px;
}
.stat small {
    margin-top: 8px;
    font-size: 12px;
    color: var(--fg-2);
    letter-spacing: .5px;
}
@media (max-width: 600px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .stat:nth-child(2)::after { display: none; }
}

.hero-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .5;
    z-index: 0;
    animation: orbFloat 18s infinite ease-in-out;
}
.orb-1 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.4), transparent 70%);
    top: -120px; left: -100px;
}
.orb-2 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, rgba(124, 92, 255, 0.35), transparent 70%);
    bottom: -180px; right: -140px;
    animation-delay: -6s;
}
.orb-3 {
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(255, 92, 168, 0.3), transparent 70%);
    top: 40%; left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -12s;
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -40px); }
    66% { transform: translate(-30px, 30px); }
}
.orb-3 {
    animation-name: orbFloatCenter;
}
@keyframes orbFloatCenter {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 2;
}
.hero-scroll span {
    font-family: 'Orbitron', monospace;
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--fg-3);
    writing-mode: vertical-rl;
}
.scroll-line {
    width: 1px; height: 60px;
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
    background-size: 100% 200%;
    animation: scrollLine 2s infinite;
}
@keyframes scrollLine {
    0% { background-position: 0 200%; }
    100% { background-position: 0 -200%; }
}

/* ==================== 信任栏 ==================== */
.trust {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: rgba(10, 14, 26, 0.4);
    padding: 28px 32px;
    overflow: hidden;
}
.trust-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.trust-label {
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--fg-3);
    text-transform: uppercase;
    white-space: nowrap;
}
.trust-logos {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}
.trust-logos span {
    font-size: 14px;
    color: var(--fg-2);
    letter-spacing: 1px;
    position: relative;
    transition: color .3s;
}
.trust-logos span:hover { color: var(--accent); }

/* ==================== 业务服务 ==================== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
@media (max-width: 960px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .service-grid { grid-template-columns: 1fr; } }

.service-card {
    position: relative;
    padding: 36px 28px 32px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    overflow: hidden;
    transition: all .4s var(--ease);
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(0, 240, 255, 0.12), transparent 60%);
    opacity: 0;
    transition: opacity .4s var(--ease);
    pointer-events: none;
}
.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 240, 255, 0.35);
    box-shadow: var(--shadow-card), 0 0 0 1px rgba(0, 240, 255, 0.1);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 64px; height: 64px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(124, 92, 255, 0.15));
    border: 1px solid var(--line-strong);
    border-radius: 16px;
    color: var(--accent);
    margin-bottom: 22px;
    transition: all .4s var(--ease);
}
.service-card:hover .service-icon {
    background: var(--grad-primary);
    color: #06122a;
    transform: rotate(-6deg) scale(1.05);
    box-shadow: 0 8px 24px -8px rgba(0, 240, 255, 0.5);
}
.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--fg-0);
}
.service-card > p {
    color: var(--fg-2);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 18px;
}
.service-card ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}
.service-card ul li {
    position: relative;
    padding-left: 22px;
    font-size: 13px;
    color: var(--fg-1);
}
.service-card ul li::before {
    content: '';
    position: absolute;
    left: 4px; top: 9px;
    width: 6px; height: 6px;
    border-right: 1.5px solid var(--accent);
    border-bottom: 1.5px solid var(--accent);
    transform: rotate(45deg);
}
.service-num {
    position: absolute;
    top: 24px; right: 28px;
    font-family: 'Orbitron', monospace;
    font-size: 56px;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px rgba(124, 140, 211, 0.15);
    line-height: 1;
    transition: -webkit-text-stroke-color .4s;
}
.service-card:hover .service-num {
    -webkit-text-stroke-color: rgba(0, 240, 255, 0.4);
}

/* ==================== 关于我们 ==================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
@media (max-width: 960px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }

.about-text .lead {
    font-size: 18px;
    color: var(--fg-0);
    line-height: 1.9;
    margin: 20px 0 16px;
    font-weight: 400;
}
.about-text > p:not(.lead) {
    color: var(--fg-2);
    margin-bottom: 24px;
    font-size: 14px;
    line-height: 1.9;
}
.about-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 24px 0 32px;
}
.about-list li {
    position: relative;
    padding-left: 32px;
    font-size: 14px;
    color: var(--fg-1);
    line-height: 1.7;
}
.about-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 7px;
    width: 16px; height: 16px;
    background: var(--grad-primary);
    border-radius: 4px;
    opacity: .2;
}
.about-list li::after {
    content: '';
    position: absolute;
    left: 5px; top: 12px;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 2px;
}
.about-list strong {
    color: var(--fg-0);
    font-weight: 500;
    margin-right: 6px;
}
.about-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* 玻璃代码卡 */
.about-visual { perspective: 1200px; }
.glass-card {
    background: linear-gradient(160deg, rgba(16, 22, 38, 0.85), rgba(10, 14, 26, 0.95));
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card), var(--shadow-glow);
    backdrop-filter: blur(20px);
}
.glass-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--line);
}
.glass-header .dot {
    width: 12px; height: 12px;
    border-radius: 50%;
}
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.glass-header small {
    margin-left: auto;
    font-family: 'Orbitron', monospace;
    font-size: 11px;
    color: var(--fg-3);
    letter-spacing: 1px;
}
.glass-code {
    padding: 24px;
    font-family: 'SF Mono', 'Menlo', monospace;
    font-size: 13px;
    line-height: 1.85;
    color: var(--fg-1);
    overflow-x: auto;
}
.glass-code .cmt { color: var(--fg-3); }
.glass-code .key { color: var(--accent-3); }
.glass-code .var { color: var(--accent); }
.glass-code .prop { color: var(--fg-0); }
.glass-code .str { color: var(--accent-warm); }
.glass-code .num { color: var(--accent-2); }
.glass-code .fn { color: var(--accent); }
.glass-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 18px 24px;
    border-top: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.2);
}
.glass-stats > div { text-align: center; }
.glass-stats strong {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    color: var(--accent);
}
.glass-stats small {
    font-size: 11px;
    color: var(--fg-3);
    letter-spacing: 1px;
}

/* ==================== 案例 ==================== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
@media (max-width: 960px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .case-grid { grid-template-columns: 1fr; } }

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all .4s var(--ease);
}
.case-card:hover {
    transform: translateY(-6px);
    border-color: rgba(124, 92, 255, 0.4);
    box-shadow: var(--shadow-card), 0 0 0 1px rgba(124, 92, 255, 0.1);
}
.case-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    padding: 20px;
}
.case-thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0) 40%, rgba(0,0,0,0.6) 100%);
    z-index: 1;
}
.case-1 { background: linear-gradient(135deg, #00f0ff 0%, #7c5cff 100%); }
.case-2 { background: linear-gradient(135deg, #7c5cff 0%, #ff5ca8 100%); }
.case-3 { background: linear-gradient(135deg, #ff5ca8 0%, #ffb84d 100%); }
.case-4 { background: linear-gradient(135deg, #00f0ff 0%, #28c840 100%); }
.case-5 { background: linear-gradient(135deg, #7c5cff 0%, #00f0ff 100%); }
.case-6 { background: linear-gradient(135deg, #ffb84d 0%, #ff5ca8 100%); }

.case-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    z-index: 0;
}
.case-tag {
    position: absolute;
    top: 16px; left: 16px;
    z-index: 2;
    padding: 4px 12px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 100px;
    font-size: 11px;
    letter-spacing: 1px;
    color: #fff;
}
.case-overlay {
    position: relative;
    z-index: 2;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: .5px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.case-body { padding: 22px 24px 24px; }
.case-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--fg-0);
}
.case-body p {
    font-size: 13px;
    color: var(--fg-2);
    line-height: 1.7;
    margin-bottom: 14px;
}
.case-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.case-meta span {
    padding: 3px 10px;
    background: rgba(0, 240, 255, 0.06);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 4px;
    font-size: 11px;
    color: var(--accent);
    font-family: 'Orbitron', monospace;
}

/* ==================== 服务流程 ==================== */
.process-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    counter-reset: step;
    position: relative;
}
.process-list::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
    z-index: 0;
}
@media (max-width: 960px) {
    .process-list { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .process-list::before { display: none; }
}
@media (max-width: 540px) { .process-list { grid-template-columns: 1fr; } }

.process-item {
    position: relative;
    text-align: center;
    padding: 0 16px;
    z-index: 1;
}
.process-num {
    width: 64px; height: 64px;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-1);
    border: 1px solid var(--accent);
    border-radius: 50%;
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 900;
    color: var(--accent);
    position: relative;
    transition: all .4s var(--ease);
}
.process-num::before {
    content: '';
    position: absolute;
    inset: -6px;
    border: 1px dashed rgba(0, 240, 255, 0.3);
    border-radius: 50%;
    opacity: 0;
    transition: opacity .4s;
}
.process-item:hover .process-num {
    background: var(--grad-primary);
    color: #06122a;
    box-shadow: 0 0 24px rgba(0, 240, 255, 0.5);
}
.process-item:hover .process-num::before { opacity: 1; }
.process-body h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--fg-0);
}
.process-body p {
    font-size: 12px;
    color: var(--fg-2);
    line-height: 1.7;
}

/* ==================== 技术栈 ==================== */
.stack-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
@media (max-width: 960px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .stack-grid { grid-template-columns: 1fr; } }

.stack-group {
    padding: 26px 24px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    transition: all .35s var(--ease);
}
.stack-group:hover {
    border-color: rgba(0, 240, 255, 0.3);
    transform: translateY(-3px);
}
.stack-group h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 14px;
    text-transform: uppercase;
}
.stack-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.stack-tags span {
    padding: 6px 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--line);
    border-radius: 6px;
    font-size: 12px;
    color: var(--fg-1);
    font-family: 'Orbitron', monospace;
    transition: all .25s var(--ease);
}
.stack-tags span:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(0, 240, 255, 0.08);
    transform: translateY(-2px);
}

/* ==================== FAQ ==================== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    overflow: hidden;
    transition: border-color .35s;
}
.faq-item[open] { border-color: rgba(0, 240, 255, 0.35); }
.faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 500;
    color: var(--fg-0);
    cursor: none;
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-icon {
    flex-shrink: 0;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    font-size: 18px;
    font-weight: 300;
    color: var(--accent);
    transition: transform .35s var(--ease);
}
.faq-item[open] .faq-icon { transform: rotate(45deg); border-color: var(--accent); background: rgba(0, 240, 255, 0.1); }
.faq-content {
    padding: 0 24px 22px;
    color: var(--fg-1);
    font-size: 14px;
    line-height: 1.9;
    animation: faqOpen .4s var(--ease);
}
@keyframes faqOpen {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==================== 联系 ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
    align-items: start;
}
@media (max-width: 960px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

.contact-info .lead {
    font-size: 16px;
    color: var(--fg-1);
    margin: 16px 0 28px;
}
.contact-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.contact-list li {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    transition: all .3s var(--ease);
}
.contact-list li:hover {
    border-color: rgba(0, 240, 255, 0.3);
    transform: translateX(4px);
}
.ci-label {
    font-size: 11px;
    letter-spacing: 1.5px;
    color: var(--fg-3);
    text-transform: uppercase;
    font-family: 'Orbitron', monospace;
}
.contact-list strong {
    font-size: 16px;
    color: var(--fg-0);
    font-weight: 500;
}

.contact-form {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}
.contact-form::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px;
    height: 2px;
    background: var(--grad-primary);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.contact-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.contact-form label > span {
    font-size: 12px;
    color: var(--fg-2);
    letter-spacing: .5px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 12px 14px;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--fg-0);
    font-size: 14px;
    transition: all .25s var(--ease);
    resize: vertical;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--fg-3); }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 240, 255, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
}
.contact-form select option { background: var(--bg-1); }
.form-tip {
    font-size: 13px;
    text-align: center;
    min-height: 18px;
    color: var(--accent);
}
.form-tip.error { color: var(--accent-3); }
.form-tip.success { color: #28c840; }
.form-disclaimer {
    font-size: 11px;
    color: var(--fg-3);
    text-align: center;
    line-height: 1.7;
}

/* ==================== 页脚 ==================== */
.footer {
    border-top: 1px solid var(--line);
    background: linear-gradient(180deg, transparent, rgba(10, 14, 26, 0.6));
    padding: 64px 32px 32px;
}
.footer-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}
@media (max-width: 768px) {
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-desc {
    font-size: 13px;
    color: var(--fg-2);
    line-height: 1.8;
}
.footer-col h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 18px;
    text-transform: uppercase;
}
.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col li, .footer-col a {
    font-size: 13px;
    color: var(--fg-2);
    line-height: 1.6;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
    max-width: var(--container);
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: var(--fg-3);
}
.footer-icp a {
    color: var(--fg-3);
    margin: 0 4px;
}
.footer-icp a:hover { color: var(--accent); }
.footer-icp .sep { color: var(--fg-3); margin: 0 4px; }

/* ==================== 返回顶部 ==================== */
.back-top {
    position: fixed;
    right: 32px; bottom: 32px;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    color: var(--accent);
    backdrop-filter: blur(20px);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all .35s var(--ease);
    cursor: none;
}
.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-top:hover {
    background: var(--grad-primary);
    color: #06122a;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px -6px rgba(0, 240, 255, 0.5);
}
@media (max-width: 600px) {
    .back-top { right: 20px; bottom: 20px; width: 42px; height: 42px; }
}

/* ==================== 滚动揭示动画 ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: .08s; }
.reveal:nth-child(3) { transition-delay: .16s; }
.reveal:nth-child(4) { transition-delay: .24s; }
.reveal:nth-child(5) { transition-delay: .32s; }
.reveal:nth-child(6) { transition-delay: .40s; }

/* ==================== 可访问性 · 动效偏好 ==================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .reveal { opacity: 1; transform: none; }
}