@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --danger: #ef4444;
    --text: #141c2f;
    --muted: #7a859a;
    --bg: #eef3fb;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    width: 0 !important;
    display: none !important;
}

body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: min(1240px, 92vw);
    margin: 0 auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    border-bottom: 1px solid rgba(20, 28, 47, 0.06);
    background: rgba(238, 243, 251, 0.95);
    backdrop-filter: blur(4px);
    z-index: 20;
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0;
}

.logo-img {
    display: block;
    height: 30px;
    width: auto;
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.main-nav a {
    font-size: 12px;
    font-weight: 500;
    color: #3f4a5f;
    position: relative;
}

.main-nav a.active {
    color: var(--primary);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -14px;
    margin: auto;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.contact-info {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #3f4a5f;
    font-weight: 500;
}

.contact-info i {
    color: var(--primary-dark);
    font-size: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
}

.btn-primary {
    height: 32px;
    min-width: 88px;
    padding: 0 12px;
    background: linear-gradient(180deg, #5b95ff, #3a7cf6);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(58, 124, 246, 0.26);
    border-radius: 8px;
    font-size: 11px;
    font-weight: 600;
}

.logo {
    flex: 0 0 250px;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header-right {
    flex: 0 0 auto;
}

.mobile-menu-toggle {
    display: none;
}

.hero-section {
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    background-color: var(--bg);
    background-image: url("../images/one/beijing-BRmVuMnL.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}

.hero-container {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
}

.hero-text {
    width: 610px;
    padding-top: 12px;
}

.hero-subtitle {
    font-size: 28px;
    color: #5e6a80;
    margin-bottom: 18px;
    font-weight: 500;
}

.hero-title {
    font-size: 80px;
    line-height: 1.05;
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 34px;
}

.text-black {
    color: #151d2e;
}

.text-blue {
    color: #3f84f7;
}

.text-red {
    color: #ff4b4b;
}

.hero-logos {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 10px;
    width: 100%;
    max-width: 620px;
    margin-bottom: 28px;
}

.logo-item {
    height: 96px;
    border-radius: 12px;
    background: #fff;
    border: 1px solid rgba(20, 28, 47, 0.05);
    box-shadow: 0 6px 16px rgba(20, 28, 47, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 9px;
}

.logo-item img {
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.logo-item span {
    font-size: 11px;
    color: #3f4a5f;
    font-weight: 500;
    line-height: 1;
}

.text-icon {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #3f84f7;
    background: #f2f7ff;
    font-size: 15px;
    font-weight: 700;
}

.kimi-icon {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #111;
    color: #fff;
    font-weight: 700;
    font-size: 13px;
}

.hero-cta .btn-lg {
    width: 124px;
    height: 48px;
    border-radius: 24px;
    font-size: 16px;
}

.positioning-section {
    background: #fff;
    padding: 86px 0 90px;
}

.geo-ranking-section {
    position: relative;
    background-color: #ffffff;
    background-image: url("../images/three/threebj.jpg");
    background-repeat: no-repeat;
    background-position: center bottom;
    background-size: 100% auto;
    padding: 86px 0 138px;
    overflow: hidden;
}

.geo-ranking-section::before {
    content: none;
}

.geo-ranking-section .container {
    position: relative;
    z-index: 1;
    padding: 0;
}

.geo-ranking-section .container::before {
    content: none;
}

.geo-ranking-section .container::after {
    content: none;
}

.geo-ranking-title {
    text-align: center;
    font-size: 56px;
    line-height: 1.15;
    color: #1a2338;
    font-weight: 800;
    margin-bottom: 10px;
}

.geo-ranking-subtitle {
    text-align: center;
    font-size: 13px;
    color: #6d7891;
    max-width: 980px;
    margin: 0 auto 44px;
}

.geo-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
}

.geo-card {
    position: relative;
    min-height: 456px;
    border-radius: 14px;
    padding: 88px 34px 46px;
    border: none;
    background-repeat: no-repeat;
    background-position: center top;
    background-size: 100% 100%;
    display: flex;
    flex-direction: column;
}

.geo-card > h3,
.geo-card > .geo-card-highlight,
.geo-card > p {
    width: min(100%, 84%);
    margin-left: auto;
    margin-right: auto;
}

.geo-card-icon {
    display: none;
}

.geo-card h3 {
    font-size: 22px;
    line-height: 1.15;
    margin-bottom: 18px;
    font-weight: 800;
}

.geo-card-highlight {
    font-size: 14px;
    line-height: 1.55;
    margin-bottom: 20px;
    font-weight: 600;
}

.geo-card p {
    font-size: 13px;
    line-height: 2.15;
    color: #5e6a82;
    max-width: 100%;
    margin-top: 2px;
}

.geo-card-brand {
    background-image: url("../images/three/矩形19.png");
}

.geo-card-brand .geo-card-icon,
.geo-card-brand h3,
.geo-card-brand .geo-card-highlight {
    color: #4d79ff;
}

.geo-card-product {
    background-image: url("../images/three/矩形19_2.png");
}

.geo-card-product .geo-card-icon,
.geo-card-product h3,
.geo-card-product .geo-card-highlight {
    color: #22b573;
}

.geo-card-service {
    background-image: url("../images/three/矩形19_80.png");
}

.geo-card-service .geo-card-icon,
.geo-card-service h3,
.geo-card-service .geo-card-highlight {
    color: #b48aff;
}

.ai-scene-section {
    background: #f0f5ff;
    position: relative;
    overflow: hidden;
    padding: 80px 0 100px;
    perspective: 1000px;
}

.ai-scene-section::before {
    content: "";
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.8) 0%, transparent 60%);
    filter: blur(60px);
    animation: ambientShift 20s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

.ai-scene-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 10% 20%, rgba(59, 130, 246, 0.6) 50%, transparent 100%),
        radial-gradient(2px 2px at 25% 60%, rgba(139, 92, 246, 0.5) 50%, transparent 100%),
        radial-gradient(1.5px 1.5px at 40% 15%, rgba(59, 130, 246, 0.4) 50%, transparent 100%),
        radial-gradient(2px 2px at 55% 80%, rgba(139, 92, 246, 0.6) 50%, transparent 100%),
        radial-gradient(1.5px 1.5px at 70% 35%, rgba(59, 130, 246, 0.5) 50%, transparent 100%),
        radial-gradient(2px 2px at 85% 70%, rgba(139, 92, 246, 0.4) 50%, transparent 100%),
        radial-gradient(1.5px 1.5px at 15% 85%, rgba(99, 102, 241, 0.5) 50%, transparent 100%),
        radial-gradient(2px 2px at 90% 10%, rgba(99, 102, 241, 0.4) 50%, transparent 100%),
        radial-gradient(1px 1px at 50% 45%, rgba(59, 130, 246, 0.6) 50%, transparent 100%),
        radial-gradient(1.5px 1.5px at 65% 55%, rgba(139, 92, 246, 0.5) 50%, transparent 100%),
        radial-gradient(1px 1px at 30% 40%, rgba(99, 102, 241, 0.4) 50%, transparent 100%),
        radial-gradient(2px 2px at 78% 88%, rgba(59, 130, 246, 0.5) 50%, transparent 100%);
    background-size: 100% 100%;
    animation: particleDrift 12s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 1;
    opacity: 0.8;
}

@keyframes particleDrift {
    0% { transform: translateY(0) translateX(0); opacity: 0.6; }
    33% { transform: translateY(-15px) translateX(10px); opacity: 0.9; }
    66% { transform: translateY(10px) translateX(-8px); opacity: 0.7; }
    100% { transform: translateY(-5px) translateX(5px); opacity: 0.85; }
}

.ai-scene-section .container {
    width: 100%;
    max-width: none;
    position: relative;
    z-index: 2;
}

.ai-scene-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    background: linear-gradient(90deg, #0f172a, #2563eb, #7c3aed, #0f172a);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientText 6s ease infinite;
}

.ai-scene-subtitle {
    text-align: center;
    font-size: 18px;
    margin-bottom: 60px;
    font-weight: 400;
    background: linear-gradient(90deg, #64748b, #3b82f6, #8b5cf6, #64748b);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientText 8s ease infinite;
}

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

.ai-scene-board {
    position: relative;
    height: 600px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    background: transparent;
    transform-style: preserve-3d;
}

/* Clear old elements */
.ai-scene-board::before,
.ai-scene-board::after,
.ai-scene-noise,
.ai-scene-glow,
.ai-scene-glow-left,
.ai-scene-glow-right,
.ai-center-halo,
.chip-dot,
.core-dot {
    display: none;
}

/* Orbits */
.ai-orbit {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1.5px dashed rgba(59, 130, 246, 0.12);
    box-shadow:
        0 0 40px rgba(59, 130, 246, 0.06),
        inset 0 0 30px rgba(139, 92, 246, 0.03);
    pointer-events: none;
    z-index: 0;
}

.ai-orbit::before {
    content: "";
    position: absolute;
    top: -2px;
    left: 50%;
    width: 50%;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(59, 130, 246, 0.2) 20%, rgba(59, 130, 246, 0.8) 50%, rgba(139, 92, 246, 0.6) 70%, transparent 100%);
    transform-origin: center left;
    animation: orbitLight 6s linear infinite;
    filter: drop-shadow(0 0 6px rgba(59, 130, 246, 0.6)) drop-shadow(0 0 12px rgba(139, 92, 246, 0.3));
}

.orbit-1 { width: 400px; height: 400px; animation: spinOrbit 60s linear infinite; }
.orbit-2 { width: 650px; height: 650px; animation: spinOrbit 90s linear infinite reverse; border-color: rgba(139, 92, 246, 0.1); }
.orbit-3 { width: 900px; height: 900px; border-color: rgba(148, 163, 184, 0.08); animation: spinOrbit 120s linear infinite; }

.orbit-2::before {
    animation-duration: 10s;
    width: 30%;
    background: linear-gradient(90deg, transparent 0%, rgba(139, 92, 246, 0.2) 20%, rgba(139, 92, 246, 0.7) 50%, rgba(59, 130, 246, 0.5) 70%, transparent 100%);
    filter: drop-shadow(0 0 6px rgba(139, 92, 246, 0.5)) drop-shadow(0 0 14px rgba(139, 92, 246, 0.3));
}
.orbit-3::before {
    animation-duration: 14s;
    width: 20%;
    background: linear-gradient(90deg, transparent 0%, rgba(99, 102, 241, 0.15) 20%, rgba(99, 102, 241, 0.5) 50%, rgba(59, 130, 246, 0.4) 70%, transparent 100%);
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.4)) drop-shadow(0 0 16px rgba(59, 130, 246, 0.2));
}

/* Center Core */
.ai-center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 10;
    perspective: 500px;
}

.ai-center::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 160px;
    height: 160px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: transparent;
    box-shadow:
        0 0 0 0 rgba(59, 130, 246, 0.4),
        0 0 0 0 rgba(139, 92, 246, 0.2);
    animation: radarPulse 3s ease-out infinite;
    pointer-events: none;
    z-index: -1;
}

.ai-center::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 160px;
    height: 160px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: transparent;
    box-shadow:
        0 0 0 0 rgba(139, 92, 246, 0.3),
        0 0 0 0 rgba(59, 130, 246, 0.15);
    animation: radarPulse 3s ease-out 1.5s infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes radarPulse {
    0% {
        box-shadow:
            0 0 0 0 rgba(59, 130, 246, 0.4),
            0 0 20px 0 rgba(139, 92, 246, 0.2);
    }
    70% {
        box-shadow:
            0 0 0 80px rgba(59, 130, 246, 0),
            0 0 40px 60px rgba(139, 92, 246, 0);
    }
    100% {
        box-shadow:
            0 0 0 80px rgba(59, 130, 246, 0),
            0 0 40px 60px rgba(139, 92, 246, 0);
    }
}

.ai-query-core {
    background: rgba(15, 23, 42, 0.85);
    border-radius: 16px;
    min-width: 280px;
    padding: 0 40px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 
        0 20px 50px -12px rgba(15, 23, 42, 0.8),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    z-index: 20;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ai-query-core .core-text {
    background: linear-gradient(90deg, #fff, #93c5fd, #c4b5fd, #fff);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientText 5s ease infinite;
}

.ai-query-core:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 30px 60px -12px rgba(15, 23, 42, 0.9),
        0 0 0 1px rgba(59, 130, 246, 0.5),
        0 0 30px rgba(59, 130, 246, 0.3);
}

.ai-query-core::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    animation: shimmer 3s infinite;
}

.ai-badge {
    min-width: 80px;
    height: 72px;
    border-radius: 16px;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px -5px rgba(37, 99, 235, 0.5);
    animation: pulseGlow 4s ease-in-out infinite;
    margin-left: 12px;
    position: relative;
    overflow: hidden;
    z-index: 20;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-badge::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.ai-badge:hover::after {
    opacity: 1;
}

.ai-badge::before { display: none; }

/* Chips */
.ai-query-chip {
    position: absolute;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.97), rgba(248, 250, 255, 0.95));
    border-radius: 8px;
    height: 44px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    color: #334155;
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.05),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset,
        0 0 12px rgba(59, 130, 246, 0.06);
    animation: float 6s ease-in-out infinite;
    z-index: 5;
    backdrop-filter: blur(12px);
    transition: transform 0.32s ease, box-shadow 0.32s ease, border-color 0.32s ease, filter 0.32s ease, background 0.32s ease;
    opacity: 1;
    transform: translateY(0);
    overflow: visible;
}

.ai-query-chip::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 8px 0 0 8px;
    background: linear-gradient(180deg, #3b82f6, #8b5cf6, #3b82f6);
    background-size: 100% 200%;
    animation: borderGlow 3s ease-in-out infinite;
    display: block;
}

.ai-query-chip::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 0 8px 8px 0;
    background: linear-gradient(180deg, #8b5cf6, #3b82f6, #8b5cf6);
    background-size: 100% 200%;
    animation: borderGlow 3s ease-in-out infinite reverse;
    display: block;
}

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

.ai-query-chip:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 
        0 20px 40px rgba(59, 130, 246, 0.2),
        0 0 0 1px rgba(59, 130, 246, 0.3),
        0 8px 30px -4px rgba(139, 92, 246, 0.25),
        0 0 20px rgba(99, 102, 241, 0.15);
    border-color: rgba(255, 255, 255, 0.9);
    color: #1e293b;
    z-index: 10;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 255, 0.95));
}


.ai-query-chip .chip-icon {
    margin-right: 10px;
    font-size: 14px;
    display: inline-block;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientText 5s ease infinite;
}

/* Chip Positions */
.chip-1 { left: 20%; top: 15%; transition-delay: 0.05s; animation-delay: 0s; }
.chip-2 { left: 45%; top: 12%; transition-delay: 0.1s; animation-delay: 1s; }
.chip-3 { right: 25%; top: 15%; transition-delay: 0.15s; animation-delay: 2s; }
.chip-4 { right: 15%; top: 35%; transition-delay: 0.2s; animation-delay: 3s; }
.chip-5 { left: 15%; top: 35%; transition-delay: 0.25s; animation-delay: 1.5s; }
.chip-6 { left: 15%; top: 65%; transition-delay: 0.3s; animation-delay: 2.5s; }
.chip-7 { left: 25%; top: 80%; transition-delay: 0.35s; animation-delay: 0.5s; }
.chip-8 { right: 20%; top: 65%; transition-delay: 0.4s; animation-delay: 3.5s; }
.chip-9 { right: 15%; top: 80%; transition-delay: 0.45s; animation-delay: 1.2s; }
.chip-10 { left: 50%; top: 85%; transform: translateX(-50%) !important; transition-delay: 0.5s; animation-delay: 2.2s; }

/* Logo Points */
.ai-logo-point {
    position: absolute;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.06),
        0 0 12px rgba(59, 130, 246, 0.12);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
    transition: all 0.3s ease;
    animation: logoPulse 5s ease-in-out infinite;
}

.ai-logo-point img {
    width: 24px;
    height: 24px;
    filter: none;
    opacity: 0.85;
    transition: all 0.3s ease;
}

.ai-logo-point:hover {
    transform: translateY(-4px) scale(1.15);
    border-color: #fff;
    background: #fff;
    box-shadow:
        0 15px 30px rgba(59, 130, 246, 0.3),
        0 0 20px rgba(139, 92, 246, 0.2);
    z-index: 10;
    animation-play-state: paused;
}

.ai-logo-point:hover img {
    opacity: 1;
    transform: scale(1.05);
}

.logo-left-top { animation-delay: 0s; }
.logo-right-top { animation-delay: 1s; }
.logo-right-mid { animation-delay: 2s; }
.logo-right-bottom { animation-delay: 3s; }
.logo-left-bottom { animation-delay: 1.5s; }

@keyframes logoPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 8px 20px rgba(0,0,0,0.06), 0 0 12px rgba(59,130,246,0.12); }
    50% { transform: scale(1.08); box-shadow: 0 8px 24px rgba(0,0,0,0.08), 0 0 20px rgba(139,92,246,0.2); }
}

.logo-left-top { left: 8%; top: 12%; }
.logo-right-top { right: 18%; top: 12%; }
.logo-right-mid { right: 5%; top: 36%; }
.logo-right-bottom { right: 5%; top: 78%; }
.logo-left-bottom { left: 5%; top: 63%; }

/* Decor Icons (6 red box positions) */
.ai-decor-icon {
    position: absolute;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    pointer-events: none;
    animation: decorFloat 8s ease-in-out infinite, decorPulse 4s ease-in-out infinite;
}

.ai-decor-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    animation: decorSpin 20s linear infinite;
}

.decor-left-top { left: 6%; top: 10%; animation-delay: 0s, 0s; }
.decor-left-mid { left: 6%; top: 35%; animation-delay: 1.2s, 0.8s; }
.decor-left-bottom { left: 6%; top: 62%; animation-delay: 2.5s, 1.6s; }
.decor-right-top { right: 6%; top: 10%; animation-delay: 0.6s, 0.4s; }
.decor-right-mid { right: 6%; top: 35%; animation-delay: 1.8s, 1.2s; }
.decor-right-bottom { right: 6%; top: 78%; animation-delay: 3s, 2s; }

.decor-left-top img { animation-delay: 0s; }
.decor-left-mid img { animation-delay: -3s; }
.decor-left-bottom img { animation-delay: -7s; }
.decor-right-top img { animation-delay: -5s; }
.decor-right-mid img { animation-delay: -10s; }
.decor-right-bottom img { animation-delay: -14s; animation-direction: reverse; }

@keyframes decorFloat {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-10px) translateX(3px); }
    50% { transform: translateY(-4px) translateX(-2px); }
    75% { transform: translateY(-12px) translateX(1px); }
}

@keyframes decorPulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(59, 130, 246, 0.15), 0 0 0 0 rgba(59, 130, 246, 0.1); }
    50% { box-shadow: 0 4px 24px rgba(139, 92, 246, 0.3), 0 0 0 8px rgba(139, 92, 246, 0.05); }
}

@keyframes decorSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Links */
.ai-link {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.25), rgba(139, 92, 246, 0.25), transparent);
    transform-origin: left center;
    opacity: 0;
    z-index: 1;
    overflow: hidden;
    transition: opacity 0.5s ease;
    filter: drop-shadow(0 0 3px rgba(59, 130, 246, 0.3));
}

.ai-scene-board.is-active .ai-link {
    opacity: 1;
}

.ai-link::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, #8b5cf6, rgba(139, 92, 246, 0.8), transparent);
    transform: translateX(300%);
    animation: dataFlowReverse 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    filter: drop-shadow(0 0 6px #8b5cf6) drop-shadow(0 0 12px rgba(139, 92, 246, 0.4));
}

.ai-link::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, #3b82f6, rgba(59, 130, 246, 0.8), transparent);
    transform: translateX(-100%);
    animation: dataFlow 3s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    filter: drop-shadow(0 0 6px #3b82f6) drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
}

.ai-link-1 { width: 18%; left: 32%; top: 42%; transform: rotate(-35deg); animation-delay: 0s; }
.ai-link-2 { width: 18%; right: 32%; top: 42%; transform: rotate(35deg); animation-delay: 1.5s; }
.ai-link-3 { width: 18%; left: 32%; top: 62%; transform: rotate(35deg); animation-delay: 0.8s; }
.ai-link-4 { width: 18%; right: 32%; top: 62%; transform: rotate(-35deg); animation-delay: 2.3s; }
.ai-link-5 { display: none; }
.ai-link-6 { display: none; }
.ai-link-1::after { animation-delay: 0s; }
.ai-link-2::after { animation-delay: 1.5s; }
.ai-link-3::after { animation-delay: 0.8s; }
.ai-link-4::after { animation-delay: 2.3s; }
.ai-link-1::before { animation-delay: 1.5s; }
.ai-link-2::before { animation-delay: 0s; }
.ai-link-3::before { animation-delay: 2.3s; }
.ai-link-4::before { animation-delay: 0.8s; }

/* Animations */
@keyframes spinOrbit {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbitLight {
    0% { transform: rotate(0deg) translateX(0); opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { transform: rotate(360deg) translateX(0); opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 15px 40px -5px rgba(37, 99, 235, 0.7); }
}

@keyframes ambientShift {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.7; }
    100% { transform: scale(1); opacity: 0.5; }
}

@keyframes dataFlow {
    0% { transform: translateX(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(350%); opacity: 0; }
}

@keyframes dataFlowReverse {
    0% { transform: translateX(350%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(-100%); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .ai-scene-board *, .ai-orbit {
        animation: none !important;
        transition: none !important;
    }
}

.positioning-title {
    text-align: center;
    font-size: 56px;
    font-weight: 800;
    color: #161f33;
    line-height: 1.2;
    margin-bottom: 16px;
}

.positioning-subtitle {
    text-align: center;
    font-size: 24px;
    color: #616f87;
    margin-bottom: 44px;
}

.positioning-tabs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-bottom: 1px solid #e8ebf1;
    margin-bottom: 30px;
}

.positioning-tab {
    border: 0;
    background: transparent;
    height: 64px;
    font-size: 18px;
    color: #76839a;
    cursor: pointer;
    position: relative;
    transition: color 0.25s ease;
}

.positioning-tab:hover,
.positioning-tab.is-active {
    color: #5a83f8;
}

.positioning-tab.is-active::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 84px;
    height: 2px;
    background: #5a83f8;
}

.positioning-panels {
    position: relative;
    min-height: 530px;
}

.positioning-panel {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    opacity: 0;
    pointer-events: none;
    transform: translate3d(var(--offset-x, 0), var(--offset-y, 0), 0) scale(0.99);
    filter: blur(1px);
    will-change: transform, opacity, filter;
    transition:
        opacity 0.5s ease,
        transform 0.68s cubic-bezier(0.2, 0.75, 0.2, 1),
        filter 0.45s ease;
}

.positioning-panel.is-active {
    opacity: 1;
    pointer-events: auto;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
}

.positioning-panel.is-leaving {
    opacity: 0;
    pointer-events: none;
    transform: translate3d(var(--leave-x, 0), var(--leave-y, 0), 0) scale(0.995);
    filter: blur(1px);
}

.panel-text {
    width: 50%;
}

.panel-text h3 {
    font-size: 36px;
    line-height: 1.26;
    color: #141c2f;
    margin-bottom: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.panel-text p {
    font-size: 16px;
    line-height: 1.95;
    color: #6a7690;
    max-width: 780px;
    font-weight: 400;
}

.panel-media {
    width: 50%;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.panel-media > img {
    max-width: 620px;
    width: 100%;
    height: auto;
    transition: transform 0.35s ease, filter 0.35s ease;
    cursor: pointer;
}

.panel-media > img:hover {
    animation: mediaPulse 0.6s ease both;
    filter: drop-shadow(0 8px 18px rgba(60, 110, 255, 0.2));
}

@keyframes mediaPulse {
    0% { transform: scale(1); }
    45% { transform: scale(0.96); }
    100% { transform: scale(1.03); }
}

.chat-widget {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 25;
}

.chat-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(180deg, #57a7ff, #2974ff);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 14px rgba(41, 116, 255, 0.35);
    font-size: 15px;
}

@media (max-width: 1400px) {
    .logo-img {
        height: 32px;
    }

    .hero-title {
        font-size: 68px;
    }

    .positioning-title {
        font-size: 48px;
    }

    .geo-ranking-title {
        font-size: 46px;
    }

    .geo-card h3 {
        font-size: 32px;
    }

    .panel-text h3 {
        font-size: 32px;
    }

    .panel-text p {
        font-size: 15px;
    }

    .hero-section {
        background-size: cover;
        background-position: center center;
    }
}

@media (max-width: 1100px) {
    .main-nav,
    .header-right {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .mobile-menu-toggle span {
        width: 24px;
        height: 2px;
        background: #3f4a5f;
    }

    .hero-section {
        background-size: cover;
        background-position: center center;
    }

    .hero-text {
        width: min(620px, 100%);
    }

    .hero-title {
        font-size: 58px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

    .hero-logos {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        max-width: 420px;
    }

    .positioning-title {
        font-size: 36px;
    }

    .geo-ranking-section {
        padding: 68px 0 96px;
    }

    .geo-ranking-section .container {
        padding: 0;
    }

    .geo-ranking-section .container::after {
        display: none;
    }

    .geo-ranking-title {
        font-size: 36px;
    }

    .geo-ranking-subtitle {
        margin-bottom: 36px;
    }

    .geo-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .geo-card {
        min-height: 388px;
        padding: 40px 28px 36px;
    }

    .ai-scene-section { padding: 60px 0 80px; }
    .ai-scene-title { font-size: 40px; }
    .ai-scene-board { height: 500px; }
    .orbit-3 { opacity: 0.3; }
    .ai-query-core { height: 60px; font-size: 24px; padding: 0 30px; }
    .ai-badge { height: 60px; font-size: 20px; padding: 0 20px; }
    .chip-1, .chip-3, .chip-7, .chip-9 { opacity: 0.5; }

    .positioning-subtitle {
        font-size: 18px;
    }

    .positioning-tab {
        font-size: 15px;
        height: 54px;
    }

    .positioning-panels {
        min-height: 700px;
    }

    .positioning-panel {
        flex-direction: column;
        align-items: stretch;
    }

    .panel-text,
    .panel-media {
        width: 100%;
    }

    .panel-media {
        align-items: center;
    }

    .panel-text h3 {
        font-size: 28px;
    }

    .panel-text p {
        font-size: 15px;
    }
}

@media (max-width: 680px) {
    .site-header {
        height: 64px;
    }

    .hero-section {
        margin-top: 64px;
        min-height: calc(100vh - 64px);
        background-size: cover;
        background-position: center center;
    }

    .hero-container {
        min-height: calc(100vh - 64px);
        align-items: flex-start;
        padding-top: 56px;
    }

    .logo-img {
        height: 26px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-title {
        font-size: 44px;
        margin-bottom: 24px;
    }

    .hero-logos {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 290px;
    }

    .positioning-section {
        padding: 56px 0 62px;
    }

    .geo-ranking-section {
        padding: 56px 0 78px;
    }

    .geo-ranking-section .container {
        padding: 0;
    }

    .geo-ranking-title {
        font-size: 30px;
        margin-bottom: 12px;
    }

    .geo-ranking-subtitle {
        font-size: 13px;
        margin-bottom: 24px;
    }

    .geo-card {
        min-height: 360px;
        padding: 34px 22px 32px;
    }

    .geo-card h3 {
        font-size: 20px;
    }

    .geo-card-highlight {
        font-size: 13px;
        margin-bottom: 14px;
    }

    .geo-card p {
        font-size: 12px;
        line-height: 1.8;
    }

    .ai-scene-section { padding: 40px 0 60px; }
    .ai-scene-title { font-size: 32px; }
    .ai-scene-subtitle { font-size: 14px; margin-bottom: 40px; padding: 0 20px; }
    .ai-scene-board { height: auto; }
    
    .ai-center { flex-direction: column; gap: 12px; }
    .ai-query-core { width: 100%; height: auto; padding: 16px 20px; font-size: 20px; text-align: center; min-width: 0; }
    .ai-badge { width: auto; height: 40px; font-size: 16px; }
    
    .ai-orbit, .ai-link, .ai-logo-point { display: none; }
    
    .ai-query-chip {
        position: relative;
        display: flex;
        width: 100%;
        margin-bottom: 10px;
        transform: none !important;
        opacity: 1 !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
        animation: none;
    }
    
    .ai-scene-board {
        display: flex;
        flex-direction: column;
        align-items: center;
        height: auto;
        padding: 0 20px;
    }
    
    .ai-center { position: relative; left: auto; top: auto; transform: none; margin-bottom: 40px; }

    .positioning-title {
        font-size: 30px;
    }

    .positioning-subtitle {
        font-size: 14px;
        margin-bottom: 24px;
    }

    .positioning-tabs {
        grid-template-columns: 1fr 1fr;
    }

    .positioning-tab {
        font-size: 14px;
        height: 46px;
    }

    .positioning-tab.is-active::after {
        width: 56px;
    }

    .positioning-panels {
        min-height: 640px;
    }

    .panel-text h3 {
        font-size: 24px;
        margin-bottom: 14px;
    }

    .panel-text p {
        font-size: 14px;
        line-height: 1.8;
    }
}

/* ============================================
   Service Section - 我们能为企业做什么
   ============================================ */
.service-section {
    position: relative;
    padding: 90px 0 100px;
    background: #f5f8ff;
    background-image: url("../images/five/beijingvg.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    overflow: hidden;
}

.service-section .container {
    max-width: 1100px;
}

.service-title {
    text-align: center;
    font-size: 48px;
    font-weight: 800;
    color: #141c2f;
    line-height: 1.2;
    margin-bottom: 16px;
}

.service-subtitle {
    text-align: center;
    font-size: 15px;
    color: #6d7891;
    margin-bottom: 50px;
    line-height: 1.6;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 44px 32px 40px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.9);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.03) 0%, transparent 60%);
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.12);
    background: rgba(255, 255, 255, 0.95);
}

.service-card-highlight {
    background: linear-gradient(135deg, #eef4ff 0%, #f0f0ff 100%);
    border-color: rgba(59, 130, 246, 0.15);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.08);
}

.service-card-highlight::before {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.06) 0%, rgba(139, 92, 246, 0.04) 100%);
}

.service-card-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: iconFloat 4s ease-in-out infinite;
}

.service-card:nth-child(1) .service-card-icon { animation-delay: 0s; }
.service-card:nth-child(2) .service-card-icon { animation-delay: 0.6s; }
.service-card:nth-child(3) .service-card-icon { animation-delay: 1.2s; }
.service-card:nth-child(4) .service-card-icon { animation-delay: 0.3s; }
.service-card:nth-child(5) .service-card-icon { animation-delay: 0.9s; }
.service-card:nth-child(6) .service-card-icon { animation-delay: 1.5s; }

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.service-card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #141c2f;
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-card p {
    font-size: 14px;
    color: #7a859a;
    line-height: 1.7;
    max-width: 240px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .service-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .service-title {
        font-size: 32px;
    }

    .service-card {
        padding: 32px 24px 28px;
    }
}

/* ============================================
   Stats Section - 数据统计条
   ============================================ */
.stats-section {
    background: linear-gradient(to right, #5b9bf7 0%, #7b7ef6 25%, #8b6cf2 50%, #7c5bbf 75%, #6b4a9e 100%);
    padding: 56px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 90% 50%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    text-align: center;
}

.stat-item {
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
    font-style: italic;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
    }

    .stat-item:not(:last-child)::after {
        display: none;
    }

    .stat-number {
        font-size: 32px;
    }
}

/* ============================================
   Case Section - 排名实战案例
   ============================================ */
.case-section {
    position: relative;
    padding: 90px 0 100px;
    background-color: #f0f4fb;
    background-image: url("../images/five/case-bg.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    overflow: hidden;
}

.case-container {
    max-width: 1100px;
}

.case-title {
    text-align: center;
    font-size: 44px;
    font-weight: 800;
    color: #141c2f;
    line-height: 1.2;
    margin-bottom: 14px;
}

.case-subtitle {
    text-align: center;
    font-size: 15px;
    color: #6d7891;
    margin-bottom: 56px;
}

.case-content {
    display: flex;
    align-items: flex-start;
    gap: 60px;
}

.case-tabs {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex-shrink: 0;
    width: 180px;
    padding-top: 40px;
}

.case-tab {
    background: transparent;
    border: none;
    text-align: left;
    padding: 16px 24px;
    font-size: 16px;
    color: #5e6a82;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.case-tab:hover {
    color: #2563eb;
}

.case-tab.is-active {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.case-showcase {
    flex: 1;
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Laptop Device */
.device-laptop {
    width: 520px;
    position: relative;
    z-index: 1;
}

.device-laptop-top {
    background: #e2e8f0;
    height: 20px;
    border-radius: 10px 10px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.device-laptop-cam {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #94a3b8;
}

.device-laptop-screen {
    background: #fff;
    border: 2px solid #d1d5db;
    border-top: none;
    border-radius: 0 0 4px 4px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.screen-header {
    background: #f1f5f9;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid #e2e8f0;
}

.screen-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.screen-dot.red { background: #ef4444; }
.screen-dot.yellow { background: #f59e0b; }
.screen-dot.green { background: #22c55e; }

.screen-url {
    margin-left: 10px;
    font-size: 12px;
    color: #64748b;
    background: #fff;
    padding: 3px 14px;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
    flex: 1;
}

.screen-body {
    padding: 18px 20px;
    font-size: 12px;
    color: #475569;
    line-height: 1.8;
    max-height: 340px;
    overflow: hidden;
}

.screen-meta {
    font-size: 11px;
    color: #94a3b8;
    margin-bottom: 6px;
}

.screen-hint {
    color: #334155;
    margin-bottom: 14px;
    font-size: 12px;
}

.screen-item h4 {
    font-size: 13px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
}

.screen-item p {
    font-size: 11.5px;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 2px;
}

.screen-contact {
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px solid #f1f5f9;
}

.screen-contact p {
    font-size: 11.5px;
    color: #3b82f6;
    margin-bottom: 2px;
}

/* Phone Device */
.device-phone {
    width: 220px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    background: #1e293b;
    border-radius: 28px;
    padding: 8px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.device-phone-notch {
    width: 80px;
    height: 22px;
    background: #1e293b;
    border-radius: 0 0 14px 14px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
    top: -1px;
}

.device-phone-screen {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    margin-top: -12px;
}

.phone-header {
    background: #f8fafc;
    padding: 14px 16px 10px;
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    border-bottom: 1px solid #f1f5f9;
}

.phone-body {
    padding: 14px 16px;
    max-height: 360px;
    overflow: hidden;
}

.phone-result h4 {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.phone-result p {
    font-size: 11px;
    color: #94a3b8;
    margin-bottom: 12px;
}

.phone-item h4 {
    font-size: 13px;
    font-weight: 600;
    color: #3b82f6;
    margin-bottom: 6px;
}

.phone-item p {
    font-size: 11px;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 3px;
}

@media (max-width: 900px) {
    .case-content {
        flex-direction: column;
        align-items: center;
    }

    .case-tabs {
        flex-direction: row;
        width: 100%;
        overflow-x: auto;
    }

    .case-title {
        font-size: 30px;
    }

    .device-laptop {
        width: 100%;
        max-width: 460px;
    }

    .device-phone {
        width: 180px;
        right: -10px;
    }
}

/* ============================================
   News Section - 新闻资讯
   ============================================ */
.news-section {
    background: #fff;
    padding: 80px 0 60px;
}

.news-container {
    max-width: 900px;
}

.news-title {
    text-align: center;
    font-size: 42px;
    font-weight: 800;
    color: #141c2f;
    margin-bottom: 6px;
}

.news-title-en {
    text-align: center;
    font-size: 13px;
    color: #c0c6d2;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 18px;
}

.news-title-en::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #d1d5db;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-loading {
    text-align: center;
    padding: 60px 0;
    color: #94a3b8;
    font-size: 15px;
}

.news-error {
    text-align: center;
    padding: 60px 0;
    color: #94a3b8;
    font-size: 15px;
}

.news-row {
    display: flex;
    gap: 28px;
    padding: 28px 0;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.2s ease;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.news-row:first-child {
    padding-top: 0;
}

.news-row:hover {
    background: #fafbfd;
}

.news-row-cover {
    flex-shrink: 0;
    width: 200px;
    height: 130px;
    border-radius: 8px;
    overflow: hidden;
    background: #f1f5f9;
}

.news-row-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-row:hover .news-row-cover img {
    transform: scale(1.05);
}

.news-row-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 28px;
}

.news-row-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-row-date {
    font-size: 13px;
    color: #94a3b8;
    margin-bottom: 8px;
}

.news-row-title {
    font-size: 17px;
    font-weight: 700;
    color: #141c2f;
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}

.news-row-title a {
    color: inherit;
    text-decoration: none;
}

.news-row-title a:hover {
    color: #2563eb;
}

.news-row-desc {
    font-size: 13px;
    color: #7a859a;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Pagination */
.news-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
    padding-top: 20px;
}

.news-page-btn {
    min-width: 72px;
    height: 36px;
    padding: 0 16px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: #fff;
    color: #475569;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.news-page-btn:hover:not(:disabled) {
    border-color: #3b82f6;
    color: #3b82f6;
}

.news-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.news-page-info {
    font-size: 14px;
    color: #94a3b8;
    padding: 0 8px;
}

@media (max-width: 768px) {
    .news-title {
        font-size: 30px;
    }

    .news-row {
        flex-direction: column;
        gap: 14px;
    }

    .news-row-cover {
        width: 100%;
        height: 180px;
    }
}

/* ============================================
   News Detail View
   ============================================ */
.news-detail-page {
    padding-top: 60px;
    min-height: calc(100vh - 200px);
}

.news-detail-container {
    max-width: 900px;
    padding-top: 40px;
    padding-bottom: 60px;
}

.news-detail-view {
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.news-detail-card {
    background: #fff;
    border-radius: 14px;
    padding: 48px 52px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    border: 1px solid #f1f5f9;
}

.news-detail-title {
    font-size: 26px;
    font-weight: 800;
    color: #141c2f;
    line-height: 1.5;
    margin-bottom: 14px;
}

.news-detail-meta {
    font-size: 13px;
    color: #94a3b8;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f1f5f9;
}

.news-detail-body {
    font-size: 15px;
    color: #374151;
    line-height: 2;
}

.news-detail-body h2 {
    font-size: 22px;
    font-weight: 700;
    color: #1e293b;
    margin: 32px 0 16px;
    line-height: 1.4;
}

.news-detail-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: #334155;
    margin: 24px 0 12px;
    line-height: 1.4;
}

.news-detail-body h4 {
    font-size: 16px;
    font-weight: 600;
    color: #475569;
    margin: 20px 0 10px;
}

.news-detail-body p {
    margin-bottom: 14px;
}

.news-detail-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
}

.news-detail-body ul,
.news-detail-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.news-detail-body li {
    margin-bottom: 8px;
    line-height: 1.8;
}

.news-detail-body strong {
    color: #1e293b;
}

.news-detail-body a {
    color: #2563eb;
    text-decoration: underline;
}

.news-detail-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}

.news-detail-body th,
.news-detail-body td {
    padding: 10px 14px;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.news-detail-body th {
    background: #f8fafc;
    font-weight: 600;
    color: #1e293b;
}

.news-detail-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 28px;
    padding: 20px 0;
    border-top: 1px solid #f1f5f9;
    gap: 20px;
}

.news-detail-next {
    flex: 1;
    font-size: 14px;
    color: #475569;
    line-height: 1.6;
}

.news-detail-next a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

.news-detail-next a:hover {
    text-decoration: underline;
}

.news-detail-pager {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .news-detail-card {
        padding: 28px 20px;
    }

    .news-detail-title {
        font-size: 20px;
    }

    .news-detail-nav {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: #1a2238;
    color: rgba(255, 255, 255, 0.7);
    padding: 0;
}

.footer-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 28px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-nav a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 28px 0;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-label {
    font-size: 13px;
    color: #3b82f6;
}

.footer-phone {
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
    font-size: 13px;
}

.footer-info a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s ease;
}

.footer-info a:hover {
    color: #3b82f6;
}

@media (max-width: 768px) {
    .footer-nav {
        flex-wrap: wrap;
        gap: 20px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }

    .footer-contact {
        align-items: center;
    }

    .footer-info {
        align-items: center;
    }
}

/* ============================================
   QR Code Modal
   ============================================ */
.qr-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.qr-modal-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.qr-modal {
    background: #fff;
    border-radius: 16px;
    padding: 40px 36px 32px;
    text-align: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    max-width: 340px;
    width: 90%;
}

.qr-modal-overlay.is-open .qr-modal {
    transform: scale(1);
}

.qr-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    font-size: 28px;
    color: #94a3b8;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

.qr-modal-close:hover {
    color: #1e293b;
}

.qr-modal-img {
    width: 220px;
    height: 220px;
    object-fit: contain;
    margin-bottom: 16px;
}

.qr-modal-text {
    font-size: 15px;
    color: #475569;
    font-weight: 500;
}