/* ============================================
   千翼网络 — Premium Enterprise Website
   Luxury Tech Aesthetic · Glassmorphism · Aurora
   ============================================ */

/* ============================================
   CSS Variables — Design Token System
   ============================================ */
:root {
    /* Backgrounds — Pure Black */
    --bg-primary: #000000;
    --bg-secondary: #000000;
    --bg-tertiary: #000000;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --bg-glass: rgba(28, 28, 58, 0.55);
    --bg-glass-strong: rgba(28, 28, 58, 0.78);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-card: rgba(255, 255, 255, 0.10);
    --border-hover: rgba(255, 255, 255, 0.15);
    --border-glow: rgba(99, 102, 241, 0.4);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #9ca3af;
    --text-muted: #5b5b73;
    --text-inverse: #000000;

    /* Accents — Premium Blue Gradient System */
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-bright: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.25);

    --cyan: #0ea5e9;
    --violet: #6366f1;
    --pink: #ec4899;
    --emerald: #10b981;
    --amber: #f59e0b;

    /* Gradients */
    --grad-primary: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 50%, #06b6d4 100%);
    --grad-cool: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    --grad-warm: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
    --grad-aurora: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 33%, #6366f1 66%, #06b6d4 100%);
    --grad-mesh: radial-gradient(at 20% 30%, rgba(99,102,241,0.12) 0px, transparent 50%),
                 radial-gradient(at 80% 70%, rgba(139,92,246,0.10) 0px, transparent 50%),
                 radial-gradient(at 50% 100%, rgba(6,182,212,0.08) 0px, transparent 50%);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Global Copy Style — 后台「文案样式」可覆盖（typography_css() 输出同名变量） */
    --font-body: var(--font-sans);
    --font-heading: var(--font-display);
    --text-base: 16px;
    --heading-scale: 1;
    --line-height: 1.7;
    --paragraph-gap: 16px;
    --letter-spacing: 0px;

    /* Spacing */
    --section-padding: 140px 0;
    --container-width: 1280px;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-2xl: 40px;

    /* Shadows — Layered Premium Blue (Dark) */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 40px 100px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px var(--accent-glow);
    --shadow-card: 0 1px 0 rgba(255,255,255,0.05) inset, 0 20px 50px rgba(0,0,0,0.25);

    /* Transitions — Spring Physics */
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --transition-fast: 0.2s var(--ease-out-expo);
    --transition-base: 0.4s var(--ease-out-expo);
    --transition-slow: 0.8s var(--ease-out-expo);
    --transition-spring: 0.5s var(--ease-spring);
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--line-height);
    letter-spacing: var(--letter-spacing);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* ============================================
   Mouse-Follow Glow — Cursor Aurora Trail
   ============================================ */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, rgba(14,165,233,0.06) 35%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.4s ease;
    will-change: transform;
    mix-blend-mode: screen;
}
.cursor-glow.hidden { opacity: 0; }

/* Click Ripple Effect */
.click-ripple {
    position: fixed;
    border-radius: 50%;
    border: 2px solid rgba(59, 130, 246, 0.5);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    animation: ripple-expand 0.7s var(--ease-out-expo) forwards;
}
@keyframes ripple-expand {
    0%   { width: 0; height: 0; opacity: 0.8; border-width: 3px; }
    100% { width: 120px; height: 120px; opacity: 0; border-width: 1px; }
}

/* Aurora mesh background — fixed to viewport */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--grad-mesh);
    z-index: 0;
    pointer-events: none;
    transition: opacity 0.6s var(--ease-out-expo);
}

/* Noise texture overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.4 0 0 0 0 0.55 0 0 0 0 0.9 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
    mix-blend-mode: multiply;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--accent-bright); }

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Typography — Premium Scale
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.025em;
    font-family: var(--font-heading);
}

h1 { font-size: calc(clamp(2.8rem, 6vw, 4.5rem) * var(--heading-scale)); }
h2 { font-size: calc(clamp(2.2rem, 4.5vw, 3.5rem) * var(--heading-scale)); }
h3 { font-size: calc(clamp(1.3rem, 2.5vw, 1.8rem) * var(--heading-scale)); }

/* 段落间距 — 后台「文案样式」可配置 */
p { margin-bottom: var(--paragraph-gap); }

.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradient-shift 6s ease infinite;
}

.gradient-text-2 {
    background: var(--grad-cool);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ============================================
   Container
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }
}

/* ============================================
   Navigation — Premium Glass Bar
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform var(--transition-base);
}
.nav-logo:hover { transform: scale(1.02); }

.nav-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--grad-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    font-weight: 900;
    box-shadow: 0 4px 20px var(--accent-glow);
    position: relative;
    overflow: hidden;
    object-fit: cover;
    flex-shrink: 0;
}

/* 图片型 LOGO：覆盖默认字符样式 */
.nav-logo-icon:not(span) {
    background: transparent;
    border-radius: 8px;
    box-shadow: none;
}

.nav-logo-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.3), transparent 50%);
    border-radius: 12px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--grad-primary);
    transition: width var(--transition-base);
    border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-phone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #f0f0f5;
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.08);
    transition: all var(--transition-fast);
}

.nav-phone:hover {
    color: #ffffff;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.16);
}

@media (max-width: 768px) {
    .nav-phone {
        font-size: 0.82rem;
        padding: 6px 10px;
    }
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.nav-mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

@media (max-width: 1024px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        background: var(--bg-glass-strong);
        backdrop-filter: blur(30px) saturate(180%);
        -webkit-backdrop-filter: blur(30px) saturate(180%);
        flex-direction: column;
        padding: 100px 36px;
        gap: 28px;
        transition: right var(--transition-base);
        border-left: 1px solid var(--border-subtle);
    }

    .nav-links.open { right: 0; }
    .nav-mobile-toggle { display: flex; }
}

/* Navigation — always light text on dark hero */
.nav .nav-logo {
    color: #f0f0f5;
}

.nav .nav-links a {
    color: #9ca3af;
}

.nav .nav-links a:hover,
.nav .nav-links a.active {
    color: #f0f0f5;
}

.nav .nav-mobile-toggle span {
    background: #f0f0f5;
}

/* Buttons in hero — always light */
.hero .btn-outline {
    background: rgba(255, 255, 255, 0.06);
    color: #f0f0f5;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}

.hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.25);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-spring);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--grad-primary);
    background-size: 200% auto;
    color: #ffffff;
    box-shadow: 0 4px 24px var(--accent-glow), 0 1px 0 rgba(255,255,255,0.2) inset;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px var(--accent-glow), 0 1px 0 rgba(255,255,255,0.3) inset;
    background-position: right center;
    color: #ffffff;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s var(--ease-out-expo);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-outline {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-card);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn-sm { padding: 10px 22px; font-size: 0.8rem; }
.btn-lg { padding: 18px 40px; font-size: 1rem; border-radius: var(--radius-lg); }

/* ============================================
   Hero Section — Aurora Immersive
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 100px;
    overflow: hidden;
    background: #000000;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* Hacker background image */
.hero-image-wrapper {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center right;
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(0, 0, 0, 0.92) 0%,
        rgba(0, 0, 0, 0.75) 35%,
        rgba(0, 0, 0, 0.40) 60%,
        rgba(0, 0, 0, 0.20) 100%
    );
    z-index: 1;
}

/* Aurora glow orbs */
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.2;
    animation: orb-drift 20s ease-in-out infinite;
}

.hero-glow-1 {
    top: -200px;
    right: -100px;
    width: 700px;
    height: 700px;
    background: var(--accent);
}

.hero-glow-2 {
    bottom: -250px;
    left: -150px;
    width: 600px;
    height: 600px;
    background: var(--violet);
    animation-delay: -10s;
}

.hero-glow-3 {
    top: 40%;
    left: 40%;
    width: 400px;
    height: 400px;
    background: var(--cyan);
    opacity: 0.1;
    animation-delay: -5s;
}

@keyframes orb-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* Grid background */
/* Grid background removed — replaced by hacker image */

/* Hero text always light — overrides theme variables */
.hero .hero-title,
.hero .hero-desc,
.hero .hero-badge,
.hero .hero-stat p {
    color: #f0f0f5 !important;
}

.hero .hero-stat h3 {
    background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 50%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradient-shift 6s ease infinite;
}

.hero .hero-badge {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero .hero-stat:not(:last-child)::after {
    background: rgba(255, 255, 255, 0.10);
}

.hero .hero-badge-dot {
    box-shadow: 0 0 12px #10b981;
}

.hero .hero-stat p {
    color: #9ca3af !important;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 640px;
}

@media (min-width: 1025px) {
    .hero-content {
        text-align: left;
        margin-left: 0;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-card);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s var(--ease-out-expo);
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--emerald);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--emerald);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
    margin-bottom: 28px;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.1s both;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 44px;
    max-width: 580px;
    line-height: 1.85;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s both;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 56px;
    margin-top: 72px;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.4s both;
}

.hero-stat {
    position: relative;
}

.hero-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -28px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: var(--border-card);
}

.hero-stat h3 {
    font-size: 2.2rem;
    font-weight: 900;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradient-shift 6s ease infinite;
}

.hero-stat p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-visual {
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    pointer-events: none;
}

@media (max-width: 1024px) {
    .hero-visual { display: none; }
    .hero-content { text-align: center; margin: 0 auto; }
    .hero-stats { justify-content: center; }
    .hero-actions { justify-content: center; }
}

@media (max-width: 640px) {
    .hero-stats {
        gap: 32px;
        flex-wrap: wrap;
    }
    .hero-stat:not(:last-child)::after { display: none; }
    .hero-stat h3 { font-size: 1.6rem; }
}

/* ============================================
   Section Common
   ============================================ */
.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-light);
    margin-bottom: 20px;
    padding: 6px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 50px;
}

.section-label::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
}

.section-title {
    margin-bottom: 18px;
}

.section-desc {
    font-size: 1.08rem;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.75;
}

/* ============================================
   Products Grid — Premium Glass Cards
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 28px;
}

.product-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all var(--transition-spring);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-card);
}

/* Spotlight gradient that follows cursor */
.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        400px circle at var(--mx, 50%) var(--my, 50%),
        rgba(99, 102, 241, 0.08),
        transparent 40%
    );
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
    pointer-events: none;
}

/* Gradient border glow */
.product-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--grad-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-glow);
}

.product-card:hover::before { opacity: 1; }
.product-card:hover::after { opacity: 0.5; }

.product-card > * {
    position: relative;
    z-index: 1;
}

.product-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 24px;
    background: var(--grad-primary);
    color: white;
    box-shadow: 0 8px 24px var(--accent-glow);
    position: relative;
    overflow: hidden;
}

.product-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.3), transparent 50%);
}

/* AI配图封面 — 产品卡片顶部大图 */
.product-cover {
    width: calc(100% + 72px);
    margin: -36px 0 24px -36px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 10;
    background: rgba(255, 255, 255, 0.04);
}
.product-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(15, 23, 42, 0.25));
    pointer-events: none;
}
.product-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover .product-cover img {
    transform: scale(1.06);
}


.product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.product-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.65;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.product-tag {
    padding: 5px 14px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-subtle);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.product-card:hover .product-tag {
    border-color: var(--border-hover);
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

.product-price .current {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-price .original {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.product-badge.hot {
    background: linear-gradient(135deg, rgba(239,68,68,0.2), rgba(249,115,22,0.2));
    border: 1px solid rgba(239,68,68,0.3);
    color: #fb923c;
}

.product-badge.featured {
    background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.2));
    border: 1px solid rgba(99,102,241,0.3);
    color: var(--accent-bright);
}

@media (max-width: 768px) {
    .products-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Cases Grid — Premium Showcase
   ============================================ */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 28px;
}

.case-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-spring);
    cursor: pointer;
    box-shadow: var(--shadow-card);
    position: relative;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-glow);
}

.case-card-image {
    height: 240px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(6,6,12,0.4) 100%);
}

.case-card-image .case-icon {
    font-size: 3.5rem;
    opacity: 0.3;
    transition: all var(--transition-slow);
    filter: drop-shadow(0 4px 20px rgba(0,0,0,0.3));
}

.case-card:hover .case-icon {
    opacity: 0.6;
    transform: scale(1.15) translateY(-4px);
}

.case-card-body {
    padding: 28px;
}

.case-card-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
}

.case-card-meta span {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.case-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.case-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 18px;
}

.case-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.case-tech-tag {
    padding: 4px 12px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

@media (max-width: 768px) {
    .cases-grid { grid-template-columns: 1fr; }
}

/* ============================================
   About / Services Section
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.about-content h2 {
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.85;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 36px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-base);
}

.about-feature:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.about-feature-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: var(--radius-sm);
    background: var(--bg-card-hover);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.about-feature h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

.about-visual {
    position: relative;
    height: 520px;
}

.about-card-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.about-card-float {
    position: absolute;
    background: var(--bg-glass);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-spring);
}

.about-card-float:hover {
    transform: scale(1.03) translateY(-4px);
    border-color: var(--border-hover);
}

.about-card-float:nth-child(1) {
    top: 0;
    right: 0;
    width: 300px;
    animation-delay: 0s;
}

.about-card-float:nth-child(2) {
    top: 140px;
    left: 0;
    width: 260px;
    animation-delay: 2s;
}

.about-card-float:nth-child(3) {
    bottom: 40px;
    right: 40px;
    width: 280px;
    animation-delay: 4s;
}

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }
    .about-visual { height: 380px; }
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
}

.contact-info h3 {
    margin-bottom: 16px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 16px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-item:hover {
    background: var(--bg-card);
    border-radius: var(--radius-md);
}

.contact-item-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all var(--transition-base);
}

.contact-item:hover .contact-item-icon {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: scale(1.05);
}

.contact-item h4 {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 2px;
    font-weight: 500;
}

.contact-item span {
    font-size: 0.98rem;
    font-weight: 600;
}

.contact-form {
    background: var(--bg-card);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    padding: 44px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--grad-primary);
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: var(--bg-secondary);
}

.form-input::placeholder {
    color: var(--text-muted);
}

textarea.form-input {
    min-height: 130px;
    resize: vertical;
}

@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-form { padding: 28px; }
}

/* ============================================
   Footer — Premium Dark
   ============================================ */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
    position: relative;
    z-index: 1;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 1px;
    background: var(--grad-primary);
    opacity: 0.5;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 56px;
    margin-bottom: 56px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 20px;
    line-height: 1.75;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 0.9rem;
    margin-bottom: 22px;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-col a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.footer-col a:hover {
    color: var(--accent-light);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Detail Page
   ============================================ */
.detail-hero {
    padding: 180px 0 80px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.detail-hero h1 {
    margin-bottom: 16px;
}

.detail-hero .meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.detail-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 32px 80px;
    position: relative;
    z-index: 1;
}

.detail-body h2 { margin: 48px 0 16px; }
.detail-body h3 { margin: 36px 0 12px; }

.detail-body p {
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 16px;
}

.detail-body ul {
    color: var(--text-secondary);
    padding-left: 24px;
    margin-bottom: 16px;
}

.detail-body li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.detail-cta {
    text-align: center;
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
    z-index: 1;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

[data-animate] {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s var(--ease-out-expo);
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for grid items */
[data-animate].animated:nth-child(1) { transition-delay: 0s; }
[data-animate].animated:nth-child(2) { transition-delay: 0.1s; }
[data-animate].animated:nth-child(3) { transition-delay: 0.2s; }
[data-animate].animated:nth-child(4) { transition-delay: 0.3s; }
[data-animate].animated:nth-child(5) { transition-delay: 0.4s; }
[data-animate].animated:nth-child(6) { transition-delay: 0.5s; }

/* ============================================
   Loading Skeleton
   ============================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-card) 0%,
        var(--bg-card-hover) 50%,
        var(--bg-card) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    padding: 18px 28px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    animation: fadeInUp 0.4s var(--ease-spring);
    max-width: 400px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.toast-success {
    background: rgba(6, 95, 70, 0.9);
    color: #d1fae5;
    border: 1px solid rgba(5, 150, 105, 0.4);
}

.toast-error {
    background: rgba(127, 29, 29, 0.9);
    color: #fecaca;
    border: 1px solid rgba(220, 38, 38, 0.4);
}

/* ============================================
   Section Divider — Gradient Line
   ============================================ */
.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-card), transparent);
    position: relative;
    z-index: 1;
}

/* ============================================
   Process Steps — Premium Flow
   ============================================ */
.process-step {
    cursor: default;
}

.process-step:hover {
    transform: translateY(-8px) !important;
    border-color: var(--border-hover) !important;
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-glow) !important;
    background: var(--bg-card-hover) !important;
}

@media (max-width: 1024px) {
    .process-flow {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 640px) {
    .process-flow {
        grid-template-columns: 1fr !important;
    }
}

/* ============================================
   CTA Banner — Premium Gradient
   ============================================ */
.cta-banner {
    position: relative;
    z-index: 1;
    padding: 80px 0;
    overflow: hidden;
}

.cta-banner-inner {
    background: var(--bg-glass);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-2xl);
    padding: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-banner-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--grad-aurora);
    background-size: 200% auto;
    animation: gradient-shift 6s ease infinite;
}

/* ============================================
   Utility
   ============================================ */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

/* ============================================
   Scrollbar — Premium
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-card);
    border-radius: 4px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ============================================
   Selection
   ============================================ */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: var(--text-primary);
}

/* ============================================
   Inner Page Hero — Aurora Edition
   ============================================ */
.page-hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 100%;
    background:
        radial-gradient(ellipse at 30% 0%, rgba(99,102,241,0.18) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 0%, rgba(139,92,246,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 100%, rgba(6,182,212,0.10) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1) 50%, transparent);
    z-index: -1;
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.page-hero .hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Animated badge above page title */
.page-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-bright);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.page-hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-light);
    box-shadow: 0 0 8px var(--accent-light);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* ============================================
   Category Filters — Premium Pill Bar
   ============================================ */
.category-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 40px 0 56px;
}

.category-filter {
    padding: 9px 22px;
    border-radius: 50px;
    border: 1px solid var(--border-card);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.category-filter::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.category-filter:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99,102,241,0.2);
}

.category-filter.active {
    background: var(--grad-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(99,102,241,0.35);
}

/* ============================================
   Pagination — Premium Navigation
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 56px;
}

.pagination a,
.pagination span {
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-card);
    background: var(--bg-card);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.pagination a:hover,
.pagination .current {
    background: var(--grad-primary);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: 100px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* ============================================
   Detail Page Hero — Case & Product
   ============================================ */
.product-hero {
    padding: 160px 0 80px;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.15), transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(6,182,212,0.10), transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.product-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-hero-visual {
    height: 420px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    position: relative;
    overflow: hidden;
}

.product-hero-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-primary);
    opacity: 0.06;
}

.product-hero-visual::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--grad-aurora);
}

.product-hero-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.product-hero-meta span {
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
}

.product-hero-meta span.hot {
    background: linear-gradient(135deg, rgba(239,68,68,0.2), rgba(249,115,22,0.2));
    border-color: rgba(239,68,68,0.3);
    color: #fb923c;
}

.product-hero-price {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 24px;
}

.product-hero-price .original {
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 12px;
    font-weight: 500;
    -webkit-text-fill-color: var(--text-muted);
    background: none;
}

.product-hero-actions {
    margin-top: 32px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Buy Card - Premium Order Form */
.buy-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    position: relative;
    z-index: 1;
}

.buy-card {
    background: var(--bg-card);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 540px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.buy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--grad-aurora);
}

.buy-price {
    font-size: 3rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 20px 0;
}

.buy-price .original {
    font-size: 1.2rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 8px;
    font-weight: 500;
    -webkit-text-fill-color: var(--text-muted);
    background: none;
}

.order-form .form-group { text-align: left; }

/* ============================================
   Case Detail — Premium Showcase
   ============================================ */
.case-hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.case-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(139,92,246,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 30% 80%, rgba(99,102,241,0.10) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.case-hero .case-category {
    color: var(--accent-light);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: inline-block;
}

.case-hero .case-summary {
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 32px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.case-meta-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 48px;
    margin: 32px 0;
}

.case-meta-item {
    text-align: center;
    padding: 0 16px;
}

.case-meta-item .label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.case-meta-item .value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.case-meta-divider {
    width: 1px;
    background: var(--border-card);
    margin: 0 -16px;
}

.case-content-section {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
    z-index: 1;
}

.case-content-section:nth-child(even) {
    background: var(--bg-secondary);
}

.highlight-box {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin: 24px 0;
    position: relative;
    overflow: hidden;
}

.highlight-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 4px;
    background: var(--grad-primary);
}

.highlight-box h4 {
    color: var(--accent-light);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.highlight-box p {
    color: var(--text-secondary);
    line-height: 1.85;
    margin: 0;
}

@media (max-width: 768px) {
    .product-hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .product-hero-visual { height: 260px; }
    .case-meta-row { gap: 24px; }
    .buy-card { padding: 32px 24px; }
}

/* ============================================
   Process Flow — Premium Steps
   ============================================ */
.process-flow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
    position: relative;
}

@media (max-width: 1024px) {
    .process-flow {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .process-flow {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   3D Globe Container — Three.js Hero
   ============================================ */
.hero-globe {
    position: absolute;
    top: 0;
    right: 0;
    width: 48%;
    height: 100%;
    pointer-events: auto;
    z-index: 1;
    opacity: 1;
}

/* Hacker image — z-index layering */
.hero-image-wrapper {
    z-index: 0;
}

.hero-image-overlay {
    z-index: 1;
}

.hero-globe {
    z-index: 2;
}

@media (max-width: 1024px) {
    .hero-globe {
        width: 100%;
        opacity: 0.35;
        pointer-events: none;
    }
}

/* ============================================
   Floating Tech Icons — Section Background
   ============================================ */
.floating-icons {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.floating-icon {
    position: absolute;
    font-size: 2rem;
    opacity: 0.06;
    animation: float-icon 12s ease-in-out infinite;
    filter: blur(0.5px);
}

.floating-icon:nth-child(1)  { top: 10%; left: 5%; animation-delay: 0s; font-size: 2.8rem; }
.floating-icon:nth-child(2)  { top: 25%; right: 8%; animation-delay: 1.5s; font-size: 2.2rem; }
.floating-icon:nth-child(3)  { top: 60%; left: 10%; animation-delay: 3s; font-size: 2.5rem; }
.floating-icon:nth-child(4)  { top: 70%; right: 12%; animation-delay: 4.5s; font-size: 2rem; }
.floating-icon:nth-child(5)  { top: 40%; left: 50%; animation-delay: 6s; font-size: 2.6rem; }
.floating-icon:nth-child(6)  { top: 15%; right: 30%; animation-delay: 7.5s; font-size: 2.3rem; }
.floating-icon:nth-child(7)  { top: 80%; left: 40%; animation-delay: 9s; font-size: 2.1rem; }
.floating-icon:nth-child(8)  { top: 35%; right: 55%; animation-delay: 10.5s; font-size: 1.9rem; }

@keyframes float-icon {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33%  { transform: translateY(-30px) rotate(5deg); }
    66%  { transform: translateY(15px) rotate(-5deg); }
}

/* ============================================
   Process Connector — Animated Pulse Lines
   ============================================ */
.process-flow-wrapper {
    position: relative;
}

.process-connector {
    display: none; /* hidden on mobile */
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    height: 2px;
    pointer-events: none;
    z-index: 0;
}

@media (min-width: 1025px) {
    .process-connector {
        display: block;
    }
}

.process-connector-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        var(--accent) 0%,
        rgba(139,92,246,0.8) 25%,
        rgba(6,182,212,0.6) 50%,
        rgba(16,185,129,0.4) 75%,
        transparent 100%
    );
    position: relative;
    overflow: hidden;
}

.process-connector-pulse {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-light);
    box-shadow: 0 0 20px rgba(99,102,241,0.8), 0 0 40px rgba(99,102,241,0.4);
    animation: connector-pulse 2.5s ease-in-out infinite;
}

@keyframes connector-pulse {
    0%   { left: 0%; opacity: 1; transform: translateY(-50%) scale(1); }
    50%  { opacity: 0.6; transform: translateY(-50%) scale(1.8); }
    100% { left: 100%; opacity: 1; transform: translateY(-50%) scale(1); }
}

/* ============================================
   Process Step Enhanced Hover
   ============================================ */
.process-step-enhanced {
    text-align: center;
    padding: 40px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 1;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.process-step-enhanced::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-primary);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
}

.process-step-enhanced:hover {
    transform: translateY(-12px);
    border-color: var(--accent);
    box-shadow: 0 24px 48px rgba(99,102,241,0.2), 0 0 0 1px var(--border-glow);
}

.process-step-enhanced:hover::before {
    opacity: 0.04;
}

.process-step-number {
    width: 68px;
    height: 68px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: white;
    font-weight: 800;
    position: relative;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.process-step-enhanced:hover .process-step-number {
    transform: scale(1.15);
}

.process-step-number::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid currentColor;
    opacity: 0.3;
    animation: process-ring 2.5s ease-out infinite;
    border-color: inherit;
}

@keyframes process-ring {
    0%   { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ============================================
   Product Card — Animated Gradient Border
   ============================================ */
.product-card {
    position: relative;
    overflow: visible;
}

.product-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--radius-lg) + 2px);
    background: var(--grad-aurora);
    background-size: 300% 300%;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    animation: gradient-shift 4s ease infinite paused;
}

.product-card:hover::before {
    opacity: 1;
    animation-play-state: running;
}

/* Animated Icon in Product Card */
.product-card .product-icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-block;
    position: relative;
}

.product-card:hover .product-icon {
    transform: scale(1.2) rotate(-10deg);
    filter: drop-shadow(0 0 16px rgba(99,102,241,0.4));
}

.product-card .product-icon::after {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    background: var(--grad-primary);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    filter: blur(20px);
}

.product-card:hover .product-icon::after {
    opacity: 0.15;
}

/* ============================================
   CTA Button — Pulse Ripple Effect
   ============================================ */
.cta-banner .btn-primary {
    position: relative;
    overflow: visible;
}

.cta-banner .btn-primary::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: calc(var(--radius-sm) + 6px);
    background: var(--grad-primary);
    opacity: 0.3;
    z-index: -1;
    animation: cta-ripple 2.5s ease-out infinite;
}

.cta-banner .btn-primary::after {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: calc(var(--radius-sm) + 12px);
    background: var(--grad-primary);
    opacity: 0.15;
    z-index: -2;
    animation: cta-ripple 2.5s ease-out infinite 0.8s;
}

@keyframes cta-ripple {
    0%   { transform: scale(1); opacity: 0.3; }
    50%  { opacity: 0.1; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ============================================
   Section Background — Floating Particles
   ============================================ */
.section-with-bg-float {
    position: relative;
    overflow: hidden;
}

.section-bg-float-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.08;
    pointer-events: none;
    animation: float-orb 15s ease-in-out infinite;
}

.section-bg-float-orb:nth-child(1) {
    width: 400px; height: 400px;
    background: #6366f1;
    top: -100px; right: -100px;
    animation-delay: 0s;
}

.section-bg-float-orb:nth-child(2) {
    width: 300px; height: 300px;
    background: #06b6d4;
    bottom: -80px; left: -60px;
    animation-delay: 5s;
}

.section-bg-float-orb:nth-child(3) {
    width: 250px; height: 250px;
    background: #8b5cf6;
    top: 50%; left: 60%;
    animation-delay: 10s;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(40px, -30px) scale(1.2); }
    66%  { transform: translate(-20px, 20px) scale(0.85); }
}

/* ============================================
   Footer Wave Divider
   ============================================ */
.footer-wave {
    position: relative;
}

.footer-wave::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(99,102,241,0.05) 50%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   Case Card — Glow Pulse on Hover
   ============================================ */
.case-card {
    position: relative;
    overflow: visible;
}

.case-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--radius-lg) + 2px);
    background: linear-gradient(135deg, #6366f1, #8b5cf6, #06b6d4, #6366f1);
    background-size: 400% 400%;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    animation: gradient-shift 4s ease infinite paused;
}

.case-card:hover::before {
    opacity: 1;
    animation-play-state: running;
}

/* ============================================
   Hero Stat — Animated Counter Glow
   ============================================ */
.hero-stat h3 {
    position: relative;
    display: inline-block;
}

.hero-stat h3::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-stat:hover h3::after {
    transform: scaleX(1);
}

/* ============================================
   CTA Banner — Enhanced with Bg Orbs
   ============================================ */
.cta-banner-enhanced {
    padding: 80px 0;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.cta-banner-enhanced::before,
.cta-banner-enhanced::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.06;
    pointer-events: none;
}

.cta-banner-enhanced::before {
    width: 500px; height: 500px;
    background: #6366f1;
    top: -150px;
    right: -100px;
    animation: float-orb 12s ease-in-out infinite;
}

.cta-banner-enhanced::after {
    width: 400px; height: 400px;
    background: #8b5cf6;
    bottom: -120px;
    left: -80px;
    animation: float-orb 12s ease-in-out infinite 6s;
}

/* ============================================
   Animated SVG Icons for Product Categories
   ============================================ */
.svg-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.svg-icon-wrapper svg {
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.product-card:hover .svg-icon-wrapper svg {
    transform: scale(1.1);
}

.svg-icon-wrapper svg .icon-path {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    transition: stroke-dashoffset 1s ease;
}

.product-card:hover .svg-icon-wrapper svg .icon-path {
    stroke-dashoffset: 0;
}

/* ============================================
   Scroll Progress Bar (Top of page)
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--grad-aurora);
    z-index: 10000;
    transition: width 0.1s linear;
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 8px rgba(99,102,241,0.5);
}

/* ============================================
   Testimonial / Review Stars Animation
   ============================================ */
.rating-stars {
    display: inline-flex;
    gap: 4px;
    color: #f59e0b;
}

.rating-stars span {
    animation: star-pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.rating-stars span:nth-child(1) { animation-delay: 0s; }
.rating-stars span:nth-child(2) { animation-delay: 0.1s; }
.rating-stars span:nth-child(3) { animation-delay: 0.2s; }
.rating-stars span:nth-child(4) { animation-delay: 0.3s; }
.rating-stars span:nth-child(5) { animation-delay: 0.4s; }

@keyframes star-pop {
    from { transform: scale(0); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .nav, .footer, .contact-form { display: none; }
    body { background: white; color: black; }
    body::before, body::after { display: none; }
}

/* ============================================
   Video Case Badge & News Module
   ============================================ */
.case-video-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    background: rgba(220, 38, 38, 0.92);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 999px;
    box-shadow: 0 4px 14px rgba(220, 38, 38, 0.4);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-spring);
    cursor: pointer;
    box-shadow: var(--shadow-card);
    position: relative;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-glow);
}

.news-card-image {
    height: 200px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-card-image img {
    transform: scale(1.08);
}

.news-card-image .news-icon {
    font-size: 3rem;
    opacity: 0.35;
    filter: drop-shadow(0 4px 20px rgba(0,0,0,0.3));
}

.news-cat-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 3;
    padding: 5px 12px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    border-radius: 999px;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.news-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.news-card-meta span {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-card-body h3 {
    font-size: 1.05rem;
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-body p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-read-more {
    margin-top: auto;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent);
}

.news-card:hover .news-read-more {
    color: var(--accent-light);
}

.breadcrumb {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    gap: 6px;
    align-items: center;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--accent);
}

@media (max-width: 992px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .news-grid { grid-template-columns: 1fr; }
}

/* ===== 右下角悬浮客服面板（float_widget.php）===== */
.fw-wrap {
    position: fixed; right: 24px; bottom: 24px; z-index: 9999;
    max-width: 400px;
}
.fw-card {
    position: relative;
    background: rgba(20, 20, 30, 0.96);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 18px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    padding: 16px 18px 12px;
    box-sizing: border-box;
    cursor: default;
    transition: box-shadow .25s ease;
}
.fw-card:hover { box-shadow: 0 16px 48px rgba(37, 99, 235, 0.28); }
/* 弹出 / 收起动画 */
.fw-card.fw-wait { opacity: 0; transform: translateY(16px); transition: none; }
.fw-card.fw-in   { animation: fwPopIn .4s cubic-bezier(.22, 1.2, .36, 1) both; }
.fw-card.fw-out  { animation: fwPopOut .22s ease both; }
@keyframes fwPopIn {
    from { opacity: 0; transform: translateY(24px) scale(.92); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fwPopOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to   { opacity: 0; transform: translateY(18px) scale(.94); }
}
/* 关闭按钮 */
.fw-close {
    position: absolute; top: 10px; right: 10px;
    width: 26px; height: 26px; border-radius: 50%;
    border: none; cursor: pointer;
    background: rgba(255, 255, 255, 0.06); color: #9ca3af;
    font-size: 12px; line-height: 26px; padding: 0; text-align: center;
    transition: background .2s ease, color .2s ease;
}
.fw-close:hover { background: #ef4444; color: #fff; }
/* 收起后的小圆钮 */
.fw-mini {
    position: relative;
    width: 56px; height: 56px; border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15); cursor: pointer; padding: 0; overflow: visible;
    background: rgba(20, 20, 30, 0.9);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
    transition: transform .25s ease, box-shadow .25s ease;
}
.fw-mini:hover { transform: scale(1.08); box-shadow: 0 10px 30px rgba(37, 99, 235, 0.55); }
.fw-mini img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; display: block; }
.fw-mini-dot {
    position: absolute; right: 0; bottom: 0;
    width: 13px; height: 13px; border-radius: 50%;
    background: #22c55e; border: 2px solid rgba(20, 20, 30, 0.9);
}
.fw-head { display: flex; align-items: center; gap: 14px; }
.fw-avatar {
    position: relative; flex: none;
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-bright), #7c3aed);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    overflow: visible;
}
.fw-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.fw-avatar-emoji { font-size: 26px; line-height: 1; }
.fw-online {
    position: absolute; right: -1px; bottom: -1px;
    width: 14px; height: 14px; border-radius: 50%;
    background: #22c55e; border: 2px solid rgba(20, 20, 30, 0.9);
}
.fw-info { flex: 1; min-width: 0; }
.fw-title { font-size: .95rem; font-weight: 700; color: var(--text-primary); display: flex; align-items: center; gap: 6px; }
.fw-badge {
    font-size: .62rem; font-weight: 600; color: #fff;
    background: linear-gradient(135deg, var(--accent-bright), #7c3aed);
    padding: 1px 7px; border-radius: 999px; letter-spacing: .5px;
}
.fw-phone {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 6px; font-size: 1.02rem; font-weight: 700;
    color: var(--accent-bright); text-decoration: none; font-variant-numeric: tabular-nums;
}
.fw-phone:hover { text-decoration: underline; }
.fw-phone-ico { font-size: .9rem; }
.fw-wechat { margin-top: 4px; font-size: .78rem; color: var(--text-secondary); }
.fw-wechat b { color: var(--text-primary); }
.fw-qr { flex: none; text-align: center; }
.fw-qr img {
    width: 92px; height: 92px; object-fit: contain;
    border-radius: 10px; border: 1px solid var(--border-card); background: rgba(255, 255, 255, 0.06); display: block;
}
.fw-qr-tip { font-size: .7rem; color: var(--text-muted); margin-top: 5px; }
.fw-addr {
    display: flex; align-items: center; gap: 6px;
    margin-top: 12px; padding: 9px 10px;
    background: rgba(59, 130, 246, 0.12);
    border-radius: 10px; text-decoration: none;
    font-size: .8rem; color: var(--text-secondary); line-height: 1.5;
    transition: background .2s ease;
}
.fw-addr:hover { background: rgba(59, 130, 246, 0.22); }
.fw-addr-ico { flex: none; }
.fw-addr-text { flex: 1; min-width: 0; }
.fw-addr-go { flex: none; color: var(--accent-bright); font-weight: 600; }
@media (max-width: 640px) {
    .fw-wrap { right: 14px; bottom: 14px; max-width: calc(100vw - 24px); }
    .fw-card { padding: 12px 12px 9px; border-radius: 14px; }
    .fw-avatar { width: 44px; height: 44px; }
    .fw-qr img { width: 74px; height: 74px; }
    .fw-phone { font-size: .92rem; }
    .fw-addr { font-size: .72rem; padding: 7px 8px; }
    .fw-mini { width: 48px; height: 48px; }
}

/* 动态详情页媒体资源 */
.news-media {
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding: 8px 0;
}
.media-block-item {
    width: 100%;
}
.media-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}
.media-video video,
.media-audio audio {
    width: 100%;
    border-radius: 12px;
    background: #000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}
.media-audio audio { background: transparent; }
.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}
.media-gallery-item {
    display: block;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(255, 255, 255, 0.03);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.media-gallery-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}
.media-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}
.media-download .btn { margin-top: 4px; }

/* 宣传片案例展示区块 */
.promo-video-wrap {
    position: relative;
    max-width: 960px;
    margin: 0 auto;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: #000;
}
.promo-video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #000;
}
.promo-video-desc {
    max-width: 960px;
    margin: 22px auto 0;
}
.promo-video-desc-inner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 14px;
    background: var(--bg-secondary, #f1f5f9);
    border: 1px solid rgba(148, 163, 184, 0.25);
}
.promo-video-desc-icon {
    flex: none;
    font-size: 1.3rem;
    line-height: 1.6;
}
.promo-video-desc p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
}
@media (max-width: 640px) {
    .promo-video-wrap { border-radius: 12px; }
    .promo-video-desc-inner { padding: 12px 14px; gap: 9px; }
    .promo-video-desc p { font-size: 0.86rem; }
    .promo-video-desc-icon { font-size: 1.1rem; }
}

/* 宣传片案例多卡片网格（后台「宣传片案例」板块） */
.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
    margin-top: 8px;
}
.promo-card {
    display: flex;
    flex-direction: column;
    border-radius: 18px;
    overflow: hidden;
    background: var(--bg-card, #fff);
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.promo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.18);
}
.promo-card-video {
    position: relative;
    background: #000;
}
.promo-card-video .promo-video {
    border-radius: 0;
}
.promo-duration {
    position: absolute;
    right: 10px;
    bottom: 10px;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    background: rgba(0, 0, 0, 0.65);
    letter-spacing: 0.5px;
}
.promo-card-info {
    padding: 18px 20px;
    border-top: 1px solid rgba(148, 163, 184, 0.2);
}
.promo-card-info h3 {
    margin: 0 0 8px;
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--text-primary);
}
.promo-card-info p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.75;
    color: var(--text-secondary);
}
@media (max-width: 640px) {
    .promo-grid { grid-template-columns: 1fr; gap: 20px; }
    .promo-card-info { padding: 14px 16px; }
    .promo-card-info h3 { font-size: 1rem; }
    .promo-card-info p { font-size: 0.85rem; }
}

/* ============================================
   Responsive Hardening — 全设备全机型自适应补强
   ============================================ */

/* 平板及以下：about-features 双列 → 单列（原缺失断点） */
@media (max-width: 768px) {
    .about-features {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}

/* 移动端表单：字号 ≥16px，防止 iOS Safari 聚焦自动放大 */
@media (max-width: 1024px) {
    .form-input,
    textarea.form-input,
    select.form-input,
    .contact-form input,
    .contact-form textarea,
    .order-form input,
    .order-form textarea,
    .order-form select {
        font-size: 16px;
    }
}

/* 触控目标 ≥44px（移动导航开关、滑出菜单链接、按钮） */
@media (max-width: 1024px) {
    .nav-mobile-toggle {
        padding: 10px;
    }
    .nav-links a {
        display: block;
        padding: 8px 0;
    }
    .btn {
        min-height: 44px;
    }
}

/* 移动浏览器地址栏自适应视口（100vh → 100svh） */
@media (max-width: 1024px) {
    .hero { min-height: 100svh; }
}

/* 320-360px 极窄屏：标题与内边距收敛 */
@media (max-width: 360px) {
    h1 { font-size: clamp(2.2rem, 8vw, 2.8rem); }
    .container { padding: 0 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .nav-phone { display: none; }
}

/* 横屏矮屏（手机横屏 / 折叠屏半开）：压缩 hero 纵向占用 */
@media (max-height: 480px) and (max-width: 1024px) {
    .hero { min-height: auto; padding: 96px 0 48px; }
}

/* 尊重系统级减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}

/* ============================================
   富文本编辑器输出字体映射（前端渲染）
   Quill 富文本输出的 span.ql-font-* 在前端页面的样式
   ============================================ */
.ql-font-simsun { font-family: 'SimSun', '宋体', serif; }
.ql-font-simhei { font-family: 'SimHei', '黑体', sans-serif; }
.ql-font-yahei { font-family: 'Microsoft YaHei', '微软雅黑', sans-serif; }
.ql-font-kaiti { font-family: 'KaiTi', '楷体', serif; }
.ql-font-fangsong { font-family: 'FangSong', '仿宋', serif; }
.ql-font-serif { font-family: Georgia, 'Times New Roman', serif; }
.ql-font-monospace { font-family: 'JetBrains Mono', Consolas, monospace; }

/* QYITECH-COPYRIGHT: 千翼网络盗版必究 | FP:e58d83e7bfbce7bd91e7bb9ce79b97e78988e5bf85e7a9b6 */