/* =============================================
   海东工作室 - 核心样式表
   主题：深海蓝 × 破晓琥珀
   设计理念：海纳百川（深海蓝），东启未来（破晓琥珀）
   ============================================= */

:root {
    /* 深海色阶 - 海/底色 */
    --ink-900: #050a17;
    --ink-800: #0a1124;
    --ink-700: #0f1a33;
    --ink-600: #162442;
    --ink-500: #1e3055;

    /* 文字 */
    --text-primary: #eaf0fb;
    --text-secondary: #9fadc7;
    --text-muted: #5f6e8a;

    /* 破晓琥珀 - 东/主色 (60%) */
    --amber-400: #fbbf24;
    --amber-500: #f59e0b;
    --amber-600: #d97706;

    /* 深海青 - 海/辅助色 (30%) */
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;

    /* 珊瑚 - 强调色 (10%) */
    --coral-400: #fb7185;
    --coral-500: #f43f5e;

    /* 渐变 - 有方向感，非通用紫蓝 */
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #fb7185 100%);
    --gradient-sea: linear-gradient(135deg, #14b8a6 0%, #0ea5e9 100%);
    --gradient-dawn: linear-gradient(135deg, #f59e0b 0%, #fb7185 50%, #5eead4 100%);

    /* 玻璃表面 */
    --glass: rgba(15, 26, 51, 0.6);
    --glass-hover: rgba(22, 36, 66, 0.8);
    --border: rgba(148, 163, 184, 0.08);
    --border-glow: rgba(245, 158, 11, 0.2);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-amber: 0 0 30px rgba(245, 158, 11, 0.25);
    --shadow-teal: 0 0 30px rgba(20, 184, 166, 0.25);
    --shadow-coral: 0 0 30px rgba(251, 113, 133, 0.25);

    /* 圆角 */
    --r-sm: 8px;
    --r-md: 14px;
    --r-lg: 20px;
    --r-xl: 28px;

    /* 间距系统 - 有节奏,非均匀 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;

    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --header-h: 68px;
    --max-w: 1180px;
}

/* ============== Reset ============== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', 'Helvetica Neue', sans-serif;
    background: var(--ink-900);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: var(--amber-500); color: var(--ink-900); }

/* ============== Scrollbar ============== */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--ink-900); }
::-webkit-scrollbar-thumb { background: var(--ink-500); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber-600); }

/* ============== 粒子画布 ============== */
#particle-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

/* ============== 鼠标光晕 ============== */
.cursor-glow {
    position: fixed;
    width: 400px; height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
@media (hover: hover) {
    .cursor-glow { opacity: 1; }
}

/* ============== Header ============== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-h);
    z-index: 100;
    background: rgba(5, 10, 23, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.site-header.scrolled {
    background: rgba(5, 10, 23, 0.92);
    border-bottom-color: var(--border-glow);
}
.nav-container {
    max-width: var(--max-w);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-icon svg { display: block; }
.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}
.logo-text span {
    color: var(--amber-500);
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}
.nav-link {
    padding: 8px 16px;
    font-size: 0.93rem;
    color: var(--text-secondary);
    border-radius: var(--r-sm);
    transition: var(--transition);
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 50%;
    width: 0; height: 2px;
    background: var(--amber-500);
    border-radius: 2px;
    transition: var(--transition);
    transform: translateX(-50%);
}
.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 50%;
}
.nav-cta {
    padding: 9px 22px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ink-900);
    background: var(--amber-500);
    border-radius: 30px;
    transition: var(--transition);
    margin-left: var(--space-xs);
}
.nav-cta:hover {
    background: var(--amber-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-amber);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============== Main ============== */
.site-main {
    position: relative;
    z-index: 2;
    padding-top: var(--header-h);
}

/* ============== 通用 Section ============== */
.section {
    padding: var(--space-2xl) var(--space-md);
    position: relative;
}
.section-inner {
    max-width: var(--max-w);
    margin: 0 auto;
}
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}
.section-tag {
    display: inline-block;
    padding: 5px 16px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--amber-500);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
    font-weight: 600;
}
.section-title {
    font-size: clamp(1.7rem, 3.5vw, 2.6rem);
    font-weight: 800;
    margin-bottom: var(--space-sm);
    line-height: 1.3;
    letter-spacing: -0.5px;
}
.section-desc {
    font-size: 1.02rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto;
}

/* ============== Hero ============== */
.hero {
    min-height: calc(100vh - var(--header-h));
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    align-items: start;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-md) 90px;
    position: relative;
    max-width: var(--max-w);
    margin: 0 auto;
}
.hero-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -1;
}
.hero-bg-orb.orb-1 {
    width: 520px; height: 520px;
    background: var(--amber-600);
    opacity: 0.12;
    top: 5%; right: -8%;
    animation: drift 14s ease-in-out infinite;
}
.hero-bg-orb.orb-2 {
    width: 440px; height: 440px;
    background: var(--teal-500);
    opacity: 0.1;
    bottom: 0; left: -6%;
    animation: drift 12s ease-in-out infinite reverse;
}
@keyframes drift {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(40px, -30px); }
}

.hero-content {
    max-width: 620px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 30px;
    font-size: 0.82rem;
    color: var(--teal-300);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
    animation: fadeUp 0.8s ease both;
}
.hero-badge .dot {
    width: 7px; height: 7px;
    background: var(--teal-400);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--teal-400);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.6rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-md);
    letter-spacing: -1px;
    animation: fadeUp 0.8s ease 0.15s both;
}
.hero-title .accent {
    color: var(--amber-500);
}
.hero-title .accent-sea {
    color: var(--teal-400);
}
.hero-subtitle {
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: var(--space-lg);
    animation: fadeUp 0.8s ease 0.3s both;
    line-height: 1.8;
}
.hero-typing {
    min-height: 2em;
    font-size: clamp(1rem, 2.2vw, 1.3rem);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    animation: fadeUp 0.8s ease 0.45s both;
}
.hero-typing .typed-text {
    color: var(--amber-400);
}
.hero-typing .cursor {
    display: inline-block;
    width: 3px;
    height: 1.1em;
    background: var(--amber-500);
    margin-left: 4px;
    vertical-align: text-bottom;
    animation: blink 0.8s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    animation: fadeUp 0.8s ease 0.6s both;
}
.btn {
    padding: 13px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-primary {
    background: var(--amber-500);
    color: var(--ink-900);
}
.btn-primary:hover {
    background: var(--amber-400);
    transform: translateY(-3px);
    box-shadow: var(--shadow-amber);
}
.btn-outline {
    background: var(--glass);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}
.btn-outline:hover {
    border-color: var(--teal-400);
    box-shadow: var(--shadow-teal);
    transform: translateY(-3px);
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============== Hero AI 神经网络视觉 ============== */
.hero-visual {
    position: relative;
    width: 100%;
    max-width: 460px;
    aspect-ratio: 1;
    margin: 0 auto;
    align-self: center;
    animation: fadeIn 1s ease 0.5s both;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 外圈旋转环 */
.nn-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px dashed rgba(245, 158, 11, 0.15);
    animation: nn-rotate 30s linear infinite;
}
.nn-ring.ring-inner {
    inset: 12%;
    border-color: rgba(20, 184, 166, 0.12);
    animation: nn-rotate 22s linear infinite reverse;
}
@keyframes nn-rotate {
    to { transform: rotate(360deg); }
}

/* 核心节点 */
.nn-core {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 88px; height: 88px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
    z-index: 5;
}
.nn-core-inner {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: var(--amber-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--ink-900);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.5);
    animation: nn-pulse-core 3s ease-in-out infinite;
}
@keyframes nn-pulse-core {
    0%, 100% { transform: scale(1); box-shadow: 0 0 30px rgba(245, 158, 11, 0.5); }
    50% { transform: scale(1.1); box-shadow: 0 0 50px rgba(245, 158, 11, 0.7); }
}

/* 卫星节点 */
.nn-node {
    position: absolute;
    width: 44px; height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--glass);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    z-index: 4;
    animation: nn-float 4s ease-in-out infinite;
}
.nn-node .nn-node-inner {
    font-size: 1.1rem;
    line-height: 1;
}
.nn-node.node-1 {
    top: 2%; left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
    border-color: rgba(245, 158, 11, 0.3);
}
.nn-node.node-2 {
    top: 28%; right: 0;
    animation-delay: 0.8s;
    border-color: rgba(20, 184, 166, 0.3);
}
.nn-node.node-3 {
    bottom: 10%; right: 8%;
    animation-delay: 1.6s;
    border-color: rgba(251, 113, 133, 0.3);
}
.nn-node.node-4 {
    bottom: 10%; left: 8%;
    animation-delay: 2.4s;
    border-color: rgba(20, 184, 166, 0.3);
}
.nn-node.node-5 {
    top: 28%; left: 0;
    animation-delay: 3.2s;
    border-color: rgba(245, 158, 11, 0.3);
}
@keyframes nn-float {
    0%, 100% { transform: translateY(0) translateX(var(--tx, 0)); }
    50% { transform: translateY(-10px) translateX(var(--tx, 0)); }
}
.nn-node.node-1 { --tx: -50%; }

/* 连线 SVG */
.nn-svg {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
}
.nn-line {
    stroke: rgba(245, 158, 11, 0.15);
    stroke-width: 1;
    fill: none;
    stroke-dasharray: 4 6;
    animation: nn-flow 3s linear infinite;
}
.nn-line.teal {
    stroke: rgba(20, 184, 166, 0.15);
    animation-duration: 4s;
    animation-direction: reverse;
}
.nn-line.coral {
    stroke: rgba(251, 113, 133, 0.15);
    animation-duration: 5s;
}
@keyframes nn-flow {
    to { stroke-dashoffset: -20; }
}

/* 浮动标签 */
.nn-label {
    position: absolute;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 600;
    border-radius: 20px;
    background: var(--glass);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    white-space: nowrap;
    z-index: 6;
    animation: nn-float-label 5s ease-in-out infinite;
}
.nn-label.label-amber { color: var(--amber-400); border-color: rgba(245, 158, 11, 0.2); top: 8%; right: 4%; animation-delay: 0.5s; }
.nn-label.label-teal { color: var(--teal-300); border-color: rgba(20, 184, 166, 0.2); bottom: 24%; right: -2%; animation-delay: 1.5s; }
.nn-label.label-coral { color: var(--coral-400); border-color: rgba(251, 113, 133, 0.2); bottom: 2%; left: 28%; animation-delay: 2.5s; }
.nn-label.label-teal2 { color: var(--teal-300); border-color: rgba(20, 184, 166, 0.2); top: 45%; left: -4%; animation-delay: 3.5s; }
@keyframes nn-float-label {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-scroll-hint {
    position: absolute;
    bottom: 28px; left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 0.78rem;
    animation: bounce 2s ease-in-out infinite;
    text-align: center;
}
.hero-scroll-hint svg { display: block; margin: 6px auto 0; }
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ============== 服务卡片 ============== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}
.service-card {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: var(--space-lg) var(--space-md);
    backdrop-filter: blur(12px);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
    border-left: 3px solid transparent;
}
.service-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    background: var(--glass-hover);
}
.service-card.color-teal:hover { border-left-color: var(--teal-400); box-shadow: var(--shadow-teal); }
.service-card.color-amber:hover { border-left-color: var(--amber-500); box-shadow: var(--shadow-amber); }
.service-card.color-coral:hover { border-left-color: var(--coral-400); box-shadow: var(--shadow-coral); }

.service-icon {
    width: 52px; height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--r-md);
    margin-bottom: var(--space-md);
}
.service-card.color-teal .service-icon { background: rgba(20, 184, 166, 0.1); }
.service-card.color-amber .service-icon { background: rgba(245, 158, 11, 0.1); }
.service-card.color-coral .service-icon { background: rgba(251, 113, 133, 0.1); }

.service-card.color-teal .service-icon svg { stroke: var(--teal-400); }
.service-card.color-amber .service-icon svg { stroke: var(--amber-500); }
.service-card.color-coral .service-icon svg { stroke: var(--coral-400); }

.service-icon svg { width: 26px; height: 26px; stroke-width: 1.8; fill: none; }

.service-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}
.service-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    line-height: 1.8;
}
.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}
.service-tag {
    padding: 4px 12px;
    font-size: 0.76rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: var(--transition);
}
.service-card:hover .service-tag {
    border-color: var(--border-glow);
    color: var(--text-primary);
}

/* ============== 数据统计 ============== */
.stats-section {
    padding: var(--space-xl) var(--space-md);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    max-width: var(--max-w);
    margin: 0 auto;
}
.stat-card {
    text-align: center;
    padding: var(--space-lg) var(--space-sm);
    border-radius: var(--r-md);
    transition: var(--transition);
    border: 1px solid var(--border);
}
.stat-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}
.stat-number {
    font-size: clamp(2rem, 4.5vw, 2.8rem);
    font-weight: 800;
    color: var(--amber-500);
    line-height: 1.2;
}
.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

/* ============== 作品集 Portfolio ============== */
.portfolio-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, transparent, var(--ink-800), transparent);
}
.portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
}
.filter-btn {
    padding: 8px 20px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 30px;
    transition: var(--transition);
}
.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-glow);
}
.filter-btn.active {
    color: var(--ink-900);
    background: var(--amber-500);
    border-color: var(--amber-500);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
}
.portfolio-card {
    position: relative;
    padding: var(--space-lg) var(--space-md);
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    backdrop-filter: blur(12px);
    transition: var(--transition-slow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-sea);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}
.portfolio-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    background: var(--glass-hover);
}
.portfolio-card:hover::before {
    transform: scaleX(1);
}
.portfolio-card .site-emoji {
    font-size: 2.2rem;
    line-height: 1;
    margin-bottom: var(--space-sm);
}
.portfolio-card .site-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}
.portfolio-card .site-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.7;
    flex-grow: 1;
    margin-bottom: var(--space-md);
}
.portfolio-card .site-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--teal-300);
    transition: var(--transition);
}
.portfolio-card .site-link:hover {
    color: var(--teal-400);
    gap: 10px;
}
.portfolio-card .site-link svg {
    width: 14px; height: 14px;
    transition: var(--transition);
}
.portfolio-card .site-cat {
    position: absolute;
    top: var(--space-md); right: var(--space-md);
    font-size: 0.7rem;
    color: var(--text-muted);
    padding: 3px 10px;
    border: 1px solid var(--border);
    border-radius: 20px;
}

/* ============== 技术栈 ============== */
.capabilities {
    background: linear-gradient(180deg, transparent, rgba(10, 17, 36, 0.6), transparent);
}
.cap-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-sm);
    margin: 0 auto;
}
.cap-item {
    text-align: center;
    padding: var(--space-md) var(--space-sm);
    border-radius: var(--r-md);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.cap-item:hover {
    border-color: var(--border-glow);
    transform: scale(1.04);
    background: var(--glass);
}
.cap-item .cap-icon {
    font-size: 1.8rem;
    margin-bottom: var(--space-xs);
}
.cap-item .cap-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.92rem;
}
.cap-item .cap-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ============== 工作流程 ============== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}
.process-step {
    text-align: center;
    padding: var(--space-lg) var(--space-sm);
    position: relative;
}
.process-num {
    width: 52px; height: 52px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    font-weight: 800;
    border-radius: 50%;
    background: var(--ink-700);
    border: 2px solid var(--border);
    color: var(--amber-500);
    transition: var(--transition);
}
.process-step:hover .process-num {
    background: var(--amber-500);
    color: var(--ink-900);
    border-color: transparent;
    box-shadow: var(--shadow-amber);
}
.process-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}
.process-desc {
    color: var(--text-secondary);
    font-size: 0.87rem;
}

/* ============== CTA ============== */
.cta-section {
    padding: var(--space-xl) var(--space-md);
}
.cta-box {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    background: var(--glass);
    border: 1px solid var(--border-glow);
    border-radius: var(--r-xl);
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(245, 158, 11, 0.06), transparent, rgba(20, 184, 166, 0.06), transparent);
    animation: rotate 8s linear infinite;
    z-index: -1;
}
@keyframes rotate { to { transform: rotate(360deg); } }
.cta-box h2 {
    font-size: clamp(1.4rem, 3vw, 2rem);
    margin-bottom: var(--space-sm);
}
.cta-box .accent {
    color: var(--amber-500);
}
.cta-box p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: 1rem;
}

/* ============== 关于页 ============== */
.about-hero {
    padding: var(--space-2xl) var(--space-md) var(--space-lg);
    text-align: center;
}
.about-story {
    padding: var(--space-lg) var(--space-md);
}
.about-story-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    max-width: var(--max-w);
    margin: 0 auto;
}
.about-story-text h2 {
    font-size: clamp(1.4rem, 3vw, 2rem);
    margin-bottom: var(--space-md);
}
.about-story-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    line-height: 1.9;
}
.about-story-text .highlight {
    color: var(--amber-500);
    font-weight: 600;
}
.about-story-visual {
    position: relative;
    aspect-ratio: 1;
    max-width: 360px;
    margin: 0 auto;
}
.about-visual-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border-glow);
}
.about-visual-ring.ring-1 { inset: 0; animation: spin 20s linear infinite; }
.about-visual-ring.ring-2 { inset: 15%; animation: spin 15s linear infinite reverse; }
.about-visual-ring.ring-3 { inset: 30%; animation: spin 10s linear infinite; }
.about-visual-ring::before {
    content: '';
    position: absolute;
    width: 12px; height: 12px;
    background: var(--amber-500);
    border-radius: 50%;
    top: -6px; left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 12px var(--amber-500);
}
.about-visual-ring.ring-2::before { background: var(--teal-400); box-shadow: 0 0 12px var(--teal-400); }
.about-visual-ring.ring-3::before { background: var(--coral-400); box-shadow: 0 0 12px var(--coral-400); }
.about-visual-core {
    position: absolute;
    inset: 42%;
    border-radius: 50%;
    background: var(--amber-500);
    box-shadow: 0 0 40px rgba(245, 158, 11, 0.5);
    animation: pulse-glow 3s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-glow {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 1; box-shadow: 0 0 60px rgba(245, 158, 11, 0.7); }
}

/* 价值观 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-md);
    max-width: var(--max-w);
    margin: 0 auto;
}
.value-card {
    padding: var(--space-lg) var(--space-md);
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    border-left: 3px solid transparent;
}
.value-card:hover {
    border-left-color: var(--amber-500);
    transform: translateY(-4px);
}
.value-icon {
    font-size: 1.8rem;
    margin-bottom: var(--space-sm);
}
.value-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}
.value-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.8;
}

/* 时间线 */
.timeline {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 20px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(var(--amber-500), var(--teal-400), var(--coral-400));
}
.timeline-item {
    position: relative;
    padding-left: 56px;
    margin-bottom: var(--space-lg);
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: 13px; top: 6px;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--ink-900);
    border: 2px solid var(--amber-500);
    box-shadow: 0 0 10px var(--amber-500);
}
.timeline-item:nth-child(2)::before { border-color: var(--teal-400); box-shadow: 0 0 10px var(--teal-400); }
.timeline-item:nth-child(3)::before { border-color: var(--coral-400); box-shadow: 0 0 10px var(--coral-400); }
.timeline-year {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--amber-500);
    margin-bottom: var(--space-xs);
}
.timeline-item:nth-child(2) .timeline-year { color: var(--teal-400); }
.timeline-item:nth-child(3) .timeline-year { color: var(--coral-400); }
.timeline-item h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}
.timeline-item p {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

/* ============== Footer ============== */
.site-footer {
    position: relative;
    z-index: 2;
    padding: var(--space-2xl) var(--space-md) var(--space-md);
    border-top: 1px solid var(--border);
    background: rgba(5, 10, 23, 0.85);
    backdrop-filter: blur(12px);
}
.footer-bg-grid {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(245, 158, 11, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
}
.footer-container {
    max-width: var(--max-w);
    margin: 0 auto;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 2fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--space-sm);
    font-weight: 700;
    font-size: 1.1rem;
}
.footer-slogan {
    color: var(--amber-500);
    font-size: 0.92rem;
    margin-bottom: var(--space-sm);
}
.footer-desc {
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.7;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}
.footer-col h4 {
    font-size: 0.92rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}
.footer-col ul li {
    margin-bottom: var(--space-xs);
}
.footer-col ul li a {
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
}
.footer-col ul li a:hover {
    color: var(--amber-500);
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: var(--space-md);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}
.footer-bottom p { margin-bottom: 4px; }

/* ============== 滚动揭示 ============== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============== 响应式 ============== */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: var(--header-h); left: 0; right: 0;
        flex-direction: column;
        background: rgba(5, 10, 23, 0.96);
        backdrop-filter: blur(20px);
        padding: var(--space-md);
        gap: 4px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-150%);
        transition: var(--transition);
    }
    .nav-menu.open { transform: translateY(0); }
    .nav-link { width: 100%; padding: 12px 16px; }
    .nav-cta { margin-left: 0; margin-top: var(--space-xs); text-align: center; }

    .section { padding: var(--space-xl) var(--space-sm); }
    .hero { grid-template-columns: 1fr; gap: var(--space-lg); min-height: auto; padding: var(--space-xl) var(--space-sm) var(--space-lg); }
    .hero-visual { max-width: 300px; order: -1; }
    .hero-scroll-hint { display: none; }
    .about-story-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
    .footer-top { grid-template-columns: 1fr; gap: var(--space-lg); }
    .footer-links { grid-template-columns: 1fr; }
    .cta-box { padding: var(--space-xl) var(--space-md); }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .btn { width: 100%; max-width: 280px; justify-content: center; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: repeat(2, 1fr); }
}

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