/* ========================================
   成都万全电子 - 企业官网主样式
   版本: 1.0
   ======================================== */
:root { color-scheme: only light; }

/* ===== Anti Dark Mode Override ===== */
html, body {
    background-color: #ffffff !important;
    color: #1a1a2e !important;
    -webkit-text-fill-color: #1a1a2e !important;
}
img, video, svg, canvas {
    -webkit-filter: none !important;
    filter: none !important;
}
input, textarea, select {
    background-color: #ffffff !important;
    color: #1a1a2e !important;
    -webkit-text-fill-color: #1a1a2e !important;
}
.section, section, div, p, span, h1, h2, h3, h4, h5, h6,
a, li, td, th, label, blockquote, strong, em, small {
    -webkit-text-fill-color: currentColor !important;
}
.hero, .hero h1, .hero p, .hero .desc, .hero .badge {
    -webkit-text-fill-color: #ffffff !important;
}
.footer, .footer *, .section-dark, .section-dark * {
    -webkit-text-fill-color: currentColor !important;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background: #ffffff;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul, ol {
    list-style: none;
}

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

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===== CSS Variables ===== */
:root {
    --primary: #0a1a3e;
    --primary-light: #1a2d5c;
    --accent: #0066ff;
    --accent-light: #3a8eff;
    --accent-dark: #0044cc;
    --cyan: #00c2ff;
    --bg-light: #f4f6f9;
    --bg-gray: #eef1f6;
    --bg-alt: #f8fafc;
    --bg-deep: #eef2f7;
    --text-dark: #1a1a2e;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #eaedf3;
    --shadow-sm: 0 2px 12px rgba(10,26,62,0.05);
    --shadow-md: 0 8px 30px rgba(10,26,62,0.08);
    --shadow-lg: 0 16px 50px rgba(10,26,62,0.12);
    --shadow-accent: 0 8px 30px rgba(0,102,255,0.12);
    --radius: 12px;
    --radius-lg: 16px;
    --container: 1400px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== Container ===== */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 40px;
}

.container-lg {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ===== Section ===== */
.section {
    padding: 80px 0;
}

.section-sm {
    padding: 48px 0;
}

.section-dark {
    background: var(--primary);
    color: var(--white);
}

.section-gray {
    background: var(--bg-light);
}

.section-alt {
    background: var(--bg-alt);
}

/* ===== Typography ===== */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.section-dark .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 48px;
}

.section-dark .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(0,102,255,0.06);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

/* 英文水印样式 */
.section-watermark {
    position: relative;
    display: block;
    text-align: center;
    margin-bottom: 8px;
    line-height: 1;
}

.section-watermark span {
    display: inline-block;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(0,102,255,0.06);
    letter-spacing: 4px;
    text-transform: uppercase;
    line-height: 1;
    user-select: none;
    pointer-events: none;
}

.section-dark .section-watermark span {
    color: rgba(255,255,255,0.05);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(0,102,255,0.15);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0,102,255,0.2);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

.btn-outline-dark {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-outline-dark:hover {
    background: var(--accent);
    color: var(--white);
}

.btn-lg {
    padding: 16px 44px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* ===== Header / Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 26, 62, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 26, 62, 0.98);
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-logo .logo-img {
    height: 34px;
    width: auto;
    filter: brightness(0) invert(1) !important;
    -webkit-filter: brightness(0) invert(1) !important;
}

.nav-logo .logo-sub {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.55) !important;
    -webkit-text-fill-color: rgba(255,255,255,0.55) !important;
    white-space: nowrap;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 8px 14px;
    color: rgba(255,255,255,0.75);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--transition);
    line-height: 1;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.08);
}

.nav-link .arrow {
    font-size: 0.7rem;
    transition: transform 0.3s;
}

.nav-item:hover .nav-link .arrow {
    transform: rotate(180deg);
}

/* Dropdown */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown a {
    display: block;
    padding: 10px 16px;
    color: var(--text-dark);
    font-size: 0.9rem;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-dropdown a:hover {
    background: var(--bg-light);
    color: var(--accent);
}

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

.nav-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
}

.nav-phone .phone-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0,194,255,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.nav-phone .phone-number {
    font-weight: 600;
    color: var(--white);
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    background: linear-gradient(135deg, #0a1a3e 0%, #0d2b5c 40%, #0a4d8c 100%);
    overflow: hidden;
}
.hero-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10,20,40,0.75) 0%, rgba(0,40,100,0.65) 100%);
    z-index: 1;
}
.hero > .container {
    position: relative;
    z-index: 2;
}

.hero-with-bg {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,194,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,102,255,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-text .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,194,255,0.15);
    border: 1px solid rgba(0,194,255,0.3);
    color: var(--cyan);
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-text .badge .dot {
    width: 8px;
    height: 8px;
    background: var(--cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: 20px;
}

.hero-text h1 .highlight {
    background: linear-gradient(135deg, var(--cyan), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .desc {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    z-index: 2;
}

.hero-card {
    background: rgba(15, 39, 72, 0.75);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 194, 255, 0.25);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 40px rgba(0, 194, 255, 0.08);
}
.banner-card {
    display: none;
}
.banner-card.active {
    display: block;
}

.hero-card .card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 194, 255, 0.15);
}

.hero-card .card-header .icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 12px rgba(0, 194, 255, 0.3);
}

.hero-card .card-header .title {
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 700;
}

.hero-card .card-header .status {
    font-size: 0.85rem;
    color: #34d399;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.hero-card .card-header .status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-card .monitor-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.hero-card .monitor-item {
    background: rgba(0, 194, 255, 0.06);
    border-radius: 10px;
    padding: 16px 12px;
    text-align: center;
    border: 1px solid rgba(0, 194, 255, 0.12);
    transition: all 0.3s ease;
}

.hero-card .monitor-item:hover {
    background: rgba(0, 194, 255, 0.1);
    border-color: rgba(0, 194, 255, 0.3);
    transform: translateY(-2px);
}

.hero-card .monitor-item .label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 8px;
    font-weight: 500;
}

.hero-card .monitor-item .value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--white);
    text-shadow: 0 0 20px rgba(0, 194, 255, 0.4);
    letter-spacing: -0.5px;
}

.hero-card .monitor-item .unit {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
    margin-top: 2px;
}

/* ===== Data Wall ===== */
.data-wall {
    background: var(--primary);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.data-wall::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0,102,255,0.05) 100%);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.data-item {
    text-align: center;
    padding: 24px;
    border-right: 1px solid rgba(255,255,255,0.08);
}

.data-item:last-child {
    border-right: none;
}

.data-item .num {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

.data-item .num .suffix {
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
}

.data-item .label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

/* ===== Cloud Duty Section ===== */
.cloud-duty {
    padding: 80px 0;
}

.pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.pain-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.pain-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--danger), #ff7878);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.pain-card:hover {
    background: var(--white);
    border-color: var(--border);
    box-shadow: var(--shadow-md);
}

.pain-card:hover::after {
    transform: scaleX(1);
}

.pain-card .icon {
    width: 56px;
    height: 56px;
    background: rgba(239,68,68,0.08);
    border: 2px solid rgba(239,68,68,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 16px;
    transition: var(--transition-bounce);
}

.pain-card:hover .icon {
    transform: scale(1.15) rotate(-5deg);
    background: rgba(239,68,68,0.15);
}

.pain-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.pain-card p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* Solution */
.solution-section {
    background: linear-gradient(135deg, #0f2748 0%, #1a3f7a 50%, #1e4a8a 100%);
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.solution-section::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,194,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.solution-section::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0,102,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.solution-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.solution-text .section-watermark span {
    color: rgba(255,255,255,0.08);
}

.solution-text h3 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--white);
}

.solution-text p {
    color: rgba(255,255,255,0.75);
    margin-bottom: 28px;
    line-height: 1.8;
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.solution-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.85);
}

.solution-list li .check {
    width: 24px;
    height: 24px;
    background: rgba(16,185,129,0.2);
    border: 1px solid rgba(16,185,129,0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #34d399;
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.solution-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.solution-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 24px 20px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.solution-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(0,194,255,0.4);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,194,255,0.15);
}

.solution-card .card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0,194,255,0.2), rgba(0,102,255,0.2));
    border: 1px solid rgba(0,194,255,0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.solution-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 4px;
}

.solution-card p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

/* Shopping Flow */
.shopping-flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.flow-card {
    text-align: center;
    padding: 28px 16px 24px;
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.flow-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-accent);
}

.flow-card .icon {
    width: 56px;
    height: 56px;
    background: rgba(0,102,255,0.06);
    border: 2px solid rgba(0,102,255,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 12px;
    transition: var(--transition-bounce);
    position: relative;
    z-index: 1;
}

.flow-card:hover .icon {
    transform: scale(1.15) rotate(5deg);
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    color: var(--white);
}

.flow-card .step-num {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    font-weight: 900;
    color: rgba(0,102,255,0.05);
    z-index: 0;
    pointer-events: none;
    line-height: 1;
}

.flow-card .icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.flow-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
    position: relative;
    z-index: 1;
}

.flow-card p {
    font-size: 0.8rem;
    color: var(--text-gray);
    position: relative;
    z-index: 1;
}

/* Advantages */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.advantage-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-card:hover {
    border-color: rgba(0,102,255,0.25);
    box-shadow: var(--shadow-accent);
}

.advantage-card .icon {
    width: 56px;
    height: 56px;
    background: rgba(0,102,255,0.06);
    border: 2px solid rgba(0,102,255,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 16px;
    transition: var(--transition-bounce);
}

.advantage-card:hover .icon {
    transform: scale(1.2) rotate(5deg);
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    color: var(--white);
}

.advantage-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.7;
}

/* Card Icon Image (4:3 landscape, full-width replacement for emoji icons) */
.card-icon-img {
    width: 100%;
    aspect-ratio: 4/3;
    margin-bottom: 16px;
    overflow: hidden;
    border-radius: 8px;
}

.pain-card .card-icon-img {
    margin: 0 0 16px;
}

.card-icon-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Before/After Comparison */
.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 60px;
}

.comparison-col {
    border-radius: var(--radius);
    overflow: hidden;
}

.comparison-col.before {
    background: var(--bg-light);
}

.comparison-col.after {
    background: var(--bg-alt);
    border: 1px solid rgba(16,185,129,0.15);
}

.comparison-col .col-header {
    padding: 20px 24px;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
}

.comparison-col.before .col-header {
    background: rgba(239,68,68,0.08);
    color: var(--danger);
}

.comparison-col.after .col-header {
    background: rgba(16,185,129,0.08);
    color: var(--success);
}

.comparison-col ul {
    padding: 20px 24px;
}

.comparison-col ul li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.comparison-col ul li:last-child {
    border-bottom: none;
}

.comparison-col.before ul li .mark {
    color: var(--danger);
    font-weight: 700;
}

.comparison-col.after ul li .mark {
    color: var(--success);
    font-weight: 700;
}

/* Cooperation Process */
.coop-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.coop-step {
    text-align: center;
    position: relative;
}

.coop-step .step-circle {
    width: 64px;
    height: 64px;
    background: var(--white);
    border: 3px solid rgba(0,102,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 12px;
    transition: var(--transition-bounce);
}

.coop-step:hover .step-circle {
    border-color: var(--accent);
    transform: scale(1.12) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0,102,255,0.15);
}

.coop-step h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.coop-step p {
    font-size: 0.8rem;
    color: var(--text-gray);
}

.coop-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 32px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: var(--border);
    z-index: -1;
}

/* ===== Other Business ===== */
.other-business {
    background: var(--bg-light);
    padding: 80px 0;
}

.business-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.business-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent), var(--cyan));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.4s ease;
}

.business-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.business-card:hover::before {
    transform: scaleY(1);
}

.business-card .card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
    transition: var(--transition-bounce);
}

.business-card:hover .card-icon {
    transform: scale(1.12) rotate(-5deg);
    box-shadow: 0 8px 20px rgba(0,102,255,0.3);
}

.business-card .card-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.business-card .card-body p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.7;
}

.business-card .card-body .link {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

.business-card:hover .card-body .link {
    gap: 8px;
}

/* Business card with image */
.business-card.has-image {
    flex-direction: column;
    padding: 0;
    gap: 0;
    position: relative;
    overflow: hidden;
}

.business-card.has-image .biz-card-img {
    aspect-ratio: 8/3;
    overflow: hidden;
    background: #1a1a2e;
}

.business-card.has-image .biz-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right center;
    transition: transform 0.5s ease;
}

.business-card.has-image:hover .biz-card-img img {
    transform: scale(1.05);
}

.business-card.has-image .card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 24px 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.5) 60%, rgba(0,0,0,0) 100%);
    color: #fff;
}

.business-card.has-image .card-overlay h3 {
    color: #fff;
    font-size: 1.15rem;
    margin-bottom: 4px;
}

.business-card.has-image .card-overlay p {
    color: rgba(255,255,255,0.9);
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.business-card.has-image .card-overlay .link {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
}

.business-card.has-image::before {
    width: 100%;
    height: 4px;
    top: auto;
    bottom: 0;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    transform: scaleX(0);
    transform-origin: left;
    z-index: 2;
}

.business-card.has-image:hover::before {
    transform: scaleX(1);
}

/* ===== Cases Section ===== */
.cases-section {
    padding: 80px 0;
}

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

.case-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.2);
}

.case-card .case-image {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.case-card .case-image img {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card .case-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(255,255,255,0.3);
    position: relative;
    overflow: hidden;
}

.case-card .case-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.3) 100%);
}

.case-card .case-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0,102,255,0.9);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    z-index: 2;
}

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

.case-card .case-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.case-card .case-body p {
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.case-card .case-body p[style*="line-clamp"] {
    display: -webkit-box !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

.case-card .case-stats {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    margin-top: auto;
    border-top: 1px solid var(--border);
}

.case-card .case-stats .stat {
    flex: 1;
}

.case-card .case-stats .stat .num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.case-card .case-stats .stat .label {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--primary);
    padding: 64px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,194,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    position: relative;
}

.cta-section p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    position: relative;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* ===== Footer ===== */
.footer {
    background: #060d1e;
    color: rgba(255,255,255,0.6);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-col .footer-logo {
    display: inline-flex;
    align-items: center;
    margin-bottom: 16px;
}

.footer-col .footer-logo .logo-img {
    height: 34px;
    width: auto;
    filter: brightness(0) invert(1) !important;
    -webkit-filter: brightness(0) invert(1) !important;
    opacity: 0.85;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 16px;
}
.footer-wechat {
    margin-top: 16px;
}
.footer-wechat .wechat-qr {
    width: 120px;
    height: 120px;
    object-fit: contain;
    background: #fff;
    border-radius: 8px;
    padding: 6px;
    display: block;
}
.footer-wechat .wechat-qr-placeholder {
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
}
.footer-wechat p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
    margin-top: 8px;
    margin-bottom: 0;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--cyan);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 16px;
}

.footer-contact li .icon {
    font-size: 1.1rem;
    color: var(--cyan);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact li .text strong {
    color: var(--white);
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

.footer-bottom a:hover {
    color: var(--cyan);
}

/* ===== Page Banner ===== */
.page-banner {
    padding: 140px 0 60px;
    background: var(--primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner .banner-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.page-banner .banner-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 39, 72, 0.85), rgba(26, 63, 122, 0.75));
    z-index: 1;
}

.page-banner.has-bg .container {
    position: relative;
    z-index: 2;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,194,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.page-banner h1, .page-banner h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    position: relative;
}

.page-banner p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    position: relative;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    position: relative;
}

.breadcrumb a {
    color: rgba(255,255,255,0.8);
}

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

/* ===== Content Block ===== */
.content-block {
    max-width: 800px;
    margin: 0 auto;
}

.content-block h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
    margin-top: 48px;
}

.content-block h2:first-child {
    margin-top: 0;
}

.content-block p {
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

.content-block ul {
    margin-bottom: 16px;
    padding-left: 20px;
}

.content-block ul li {
    list-style: disc;
    color: var(--text-gray);
    line-height: 2;
}

/* ===== Partner Page ===== */
.partner-model {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.model-card {
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    transition: var(--transition);
}

.model-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-accent);
}

.model-card .icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 20px;
    color: var(--white);
    transition: var(--transition-bounce);
}

.model-card:hover .icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0,102,255,0.3);
}

.model-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.model-card p {
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.7;
}

/* Support Grid */
.support-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.support-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.support-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.support-card .icon {
    width: 56px;
    height: 56px;
    background: rgba(0,102,255,0.06);
    border: 2px solid rgba(0,102,255,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 16px;
    transition: var(--transition-bounce);
}

.support-card:hover .icon {
    transform: scale(1.15) rotate(-5deg);
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    color: var(--white);
}

.support-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.support-card p {
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* Profit Table */
.profit-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.profit-table th {
    background: var(--primary);
    color: var(--white);
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

.profit-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.profit-table tr:last-child td {
    border-bottom: none;
}

.profit-table tr:hover td {
    background: var(--bg-light);
}

/* ===== Contact Form ===== */
.contact-form {
    max-width: 640px;
    margin: 0 auto;
}

/* ===== About Page: Data Grid on light bg ===== */
.section .data-grid {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 20px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.section .data-item {
    border-right: 1px solid #e8eef5;
}

.section .data-item:last-child {
    border-right: none;
}

.section .data-item .num {
    color: var(--accent);
}

.section .data-item .num .suffix {
    color: #999;
}

.section .data-item .label {
    color: #666;
}

/* ===== About Page: Contact Grid ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    margin-top: 40px;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    background: #e6f0fa;
}

.contact-item .icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.contact-item h4 {
    font-size: 0.85rem;
    color: #999;
    margin: 0 0 4px 0;
    font-weight: 500;
}

.contact-item p {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin: 0;
    font-weight: 600;
}

.contact-form-wrap {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.contact-form-wrap h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin: 0 0 8px 0;
}

.contact-form-wrap .partner-form {
    max-width: 100%;
}

.contact-form-wrap .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,102,255,0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Contact Info Cards */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.contact-info-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.contact-info-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.contact-info-card .icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 16px;
    color: var(--white);
    transition: var(--transition-bounce);
}

.contact-info-card:hover .icon {
    transform: scale(1.15) rotate(-5deg);
    box-shadow: 0 6px 18px rgba(0,102,255,0.25);
}

.contact-info-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-info-card p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* ===== News List ===== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--accent);
}

.news-item .news-date {
    flex-shrink: 0;
    text-align: center;
    padding: 12px 18px;
    background: var(--bg-light);
    border-radius: 8px;
    align-self: center;
    min-width: 72px;
}

.news-item .news-date .day {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.news-item .news-date .month {
    font-size: 0.8rem;
    color: var(--text-gray);
    margin-top: 4px;
}

.news-item .news-body {
    flex: 1;
}

.news-item .news-body .tag {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(0,102,255,0.08);
    padding: 2px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.news-item .news-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.news-item .news-body h3 a:hover {
    color: var(--accent);
}

.news-item .news-body p, .news-item .news-content p {
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.news-item .news-content p[style*="line-clamp"],
.news-item .news-content h3[style*="line-clamp"] {
    display: -webkit-box !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

.news-item .news-content {
    flex: 1;
}

.news-item .news-content .news-category {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(0,102,255,0.08);
    padding: 2px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.news-item .news-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.news-item .news-cover {
    flex-shrink: 0;
    width: 200px;
    height: 130px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-light);
    position: relative;
}

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

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

.news-cover-empty {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #ccc;
}

@media (max-width: 768px) {
    .news-item .news-cover { width: 100px; height: 70px; }
    .news-item .news-date { padding: 8px 12px; min-width: 52px; }
    .news-item .news-date .day { font-size: 1.3rem; }
    .news-item .news-date .month { font-size: 0.7rem; }
}

/* ===== Case Filter ===== */
.case-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    border: 2px solid var(--border);
    border-radius: 24px;
    background: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-gray);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--white);
}

/* ===== Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual {
        display: none;
    }

    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .data-item:nth-child(2) {
        border-right: none;
    }

    .pain-points {
        grid-template-columns: repeat(2, 1fr);
    }

    .solution-block {
        grid-template-columns: 1fr;
    }

    .solution-cards {
        grid-template-columns: 1fr 1fr;
    }

    .shopping-flow {
        grid-template-columns: repeat(3, 1fr);
    }

    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .support-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .partner-model {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 48px 0;
    }

    .nav-logo .logo-img {
        height: 28px;
    }

    .nav-logo .logo-sub {
        display: none;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 26, 62, 0.98);
        padding: 20px;
        gap: 4px;
        backdrop-filter: blur(20px);
    }

    .nav-menu.active .nav-link {
        padding: 12px 16px;
        width: 100%;
    }

    .nav-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(255,255,255,0.05);
        margin: 4px 0 4px 16px;
        padding: 4px;
    }

    .nav-dropdown a {
        color: rgba(255,255,255,0.7);
    }

    .nav-actions .nav-phone {
        display: none;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text .desc {
        font-size: 1rem;
    }

    .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .data-item .num {
        font-size: 1.8rem;
    }

    .pain-points {
        grid-template-columns: 1fr;
    }

    .shopping-flow {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantage-grid {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        grid-template-columns: 1fr;
    }

    .coop-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .coop-step:not(:last-child)::after {
        display: none;
    }

    .business-cards {
        grid-template-columns: 1fr;
    }

    .business-card {
        flex-direction: column;
        padding: 24px;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-wrap .form-row {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .support-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .page-banner h1, .page-banner h2 {
        font-size: 1.6rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }
}

/* ===== Error Pages ===== */
.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8eef5 100%);
}

.error-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.error-code {
    font-size: 8rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 20px;
    opacity: 0.15;
}

.error-content h1 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.error-content > p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 8px;
}

.error-desc {
    color: #999 !important;
    font-size: 0.95rem !important;
    margin-bottom: 32px !important;
}

.error-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.error-suggest {
    background: var(--white);
    border-radius: 12px;
    padding: 24px 32px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    text-align: left;
}

.error-suggest h3 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.error-suggest ul {
    list-style: none;
}

.error-suggest li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

.error-suggest li:last-child {
    border-bottom: none;
}

.error-suggest a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.error-suggest a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .error-code {
        font-size: 5rem;
    }
    .error-content h1 {
        font-size: 1.5rem;
    }
    .error-actions {
        flex-direction: column;
    }
    .error-actions .btn {
        width: 100%;
    }
}

/* ===== News Article Detail ===== */
.news-article {
    max-width: 800px;
    margin: 0 auto;
}

.news-article .article-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

.news-article .news-category {
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
}

.news-article .article-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.news-article h1 {
    font-size: 2rem;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--dark);
}

.news-article .article-excerpt {
    font-size: 1.15rem;
    color: var(--text-light);
    line-height: 1.7;
    padding: 16px 20px;
    background: #f8f9fa;
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
    margin-bottom: 24px;
}

.news-article .article-cover {
    margin: 24px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.news-article .article-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.news-article .article-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text);
}

.news-article .article-content h2 {
    font-size: 1.5rem;
    margin: 1.5em 0 0.5em;
    color: var(--dark);
}

.news-article .article-content h3 {
    font-size: 1.25rem;
    margin: 1.2em 0 0.4em;
    color: var(--dark);
}

.news-article .article-content p {
    margin-bottom: 1em;
}

.news-article .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 12px 0;
}

.news-article .article-content ul,
.news-article .article-content ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}

.news-article .article-content li {
    margin-bottom: 0.3em;
}

.news-article .article-content a {
    color: var(--accent);
    text-decoration: underline;
}

.news-article .article-footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

/* ===== Case Detail Page ===== */
.case-article {
    max-width: 800px;
    margin: 0 auto;
}

.case-article .case-article-header {
    margin-bottom: 24px;
}

.case-article .case-category-tag {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.case-article h1 {
    font-size: 2rem;
    line-height: 1.4;
    color: var(--dark);
}

.case-article .case-cover {
    margin: 24px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.case-article .case-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.case-detail-body {
    margin: 32px 0;
}

.case-block {
    margin-bottom: 32px;
}

.case-block h2 {
    font-size: 1.4rem;
    color: var(--dark);
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 4px solid var(--accent);
}

/* ========================================
   视觉增强 v2.0
   ======================================== */

/* 渐变文字效果 */
.section-title {
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-dark .section-title {
    background: linear-gradient(135deg, #fff 0%, var(--cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 标题装饰下划线 */
.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    border-radius: 2px;
    margin: 16px auto 0;
}

/* Section背景优化 */
.section-gray {
    background: var(--bg-light);
}
.section-dark {
    background: var(--primary);
    position: relative;
    overflow: hidden;
}
.section-dark::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,194,255,0.04) 0%, transparent 60%);
    pointer-events: none;
}

/* Hero装饰光效 */
.hero {
    position: relative;
}
.hero::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,194,255,0.12) 0%, transparent 50%);
    pointer-events: none;
    animation: floatOrb 8s ease-in-out infinite;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0,102,255,0.10) 0%, transparent 50%);
    pointer-events: none;
    animation: floatOrb 10s ease-in-out infinite reverse;
}
@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

/* 卡片悬停增强 */
.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.advantage-card:hover::before {
    transform: scaleX(1);
}

/* 数据网格增强 */
.data-item .num {
    color: var(--white);
}

/* CTA按钮增强 */
.btn-primary {
    position: relative;
    overflow: hidden;
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}
.btn-primary:hover::after {
    left: 100%;
}

/* 页面横幅优化 */
.page-banner {
    background: var(--primary);
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,194,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}
.page-banner h1, .page-banner h2 {
    color: #fff;
}

/* 新闻卡片增强 */
.news-item {
    position: relative;
    overflow: hidden;
}
.news-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent), var(--cyan));
    transform: scaleY(0);
    transition: transform 0.3s ease;
    transform-origin: top;
}
.news-item:hover::before {
    transform: scaleY(1);
}

/* 标签优化 */
.section-tag {
    background: rgba(0,102,255,0.06);
    border: 1px solid rgba(0,102,255,0.1);
}

/* 页脚增强 */
.footer {
    background: #0a1530;
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), transparent);
}

/* 导航栏增强 */
.header {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.header.scrolled {
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

/* Banner轮播 */
.hero-slides {
    position: relative;
    min-height: 400px;
}
.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease;
    pointer-events: none;
}
.hero-slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    position: relative;
}
.hero-slide .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,194,255,0.12);
    border: 1px solid rgba(0,194,255,0.3);
    color: var(--cyan);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 20px;
}
.hero-slide .badge .dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}
.hero-slide h1,
.hero-slide h2 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    -webkit-text-fill-color: #ffffff !important;
    line-height: 1.3;
    margin-bottom: 16px;
}
.hero-slide .desc {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.7;
    margin-bottom: 28px;
    max-width: 540px;
}
.hero-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 20px 0;
}
.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    cursor: pointer;
    transition: all 0.3s ease;
}
.hero-dot:hover {
    background: rgba(255,255,255,0.5);
}
.hero-dot.active {
    background: var(--cyan);
    transform: scale(1.3);
    box-shadow: 0 0 8px rgba(0,194,255,0.5);
}
.hero-click-prev,
.hero-click-next {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 12%;
    z-index: 5;
    cursor: pointer;
    transition: background 0.3s ease;
}
.hero-click-prev { left: 0; }
.hero-click-next { right: 0; }
.hero-click-prev:hover { background: linear-gradient(to right, rgba(0,0,0,0.2), transparent); }
.hero-click-next:hover { background: linear-gradient(to left, rgba(0,0,0,0.2), transparent); }
@media (max-width: 768px) {
    .hero-click-prev,
    .hero-click-next { width: 18%; }
}
@media (max-width: 480px) {
    .hero-click-prev,
    .hero-click-next { width: 22%; }
}
@media (max-width: 768px) {
    .hero-slides { min-height: 320px; }
    .hero-slide h1,
    .hero-slide h2 { font-size: 1.8rem; }
    .hero-slide .desc { font-size: 0.9rem; }
}

/* 案例卡片增强 */
.case-card {
    position: relative;
    overflow: hidden;
}
.case-card:hover .case-image::after {
    opacity: 1;
}
.case-image {
    position: relative;
    overflow: hidden;
}
.case-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10,26,62,0.7) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* 痛点卡片增强 */
.pain-card, .pain-points > div {
    position: relative;
    overflow: hidden;
}
.pain-card:hover, .pain-points > div:hover {
    border-color: rgba(239,68,68,0.2);
    box-shadow: var(--shadow-md);
}

/* 购物流程步骤增强 */
.flow-step {
    position: relative;
}
.flow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    border-radius: 50%;
    opacity: 0.08;
    z-index: 0;
}

/* 合作流程步骤增强 */
.coop-step {
    position: relative;
}

/* 升级对比增强 */
.comparison-table > div {
    transition: all 0.3s ease;
}
.comparison-table > div:hover {
    transform: translateX(2px);
}

/* 内容区域正文增强 */
.article-body, .case-detail-body {
    font-size: 1.02rem;
    line-height: 1.85;
    color: #333;
}
.article-body h2, .case-detail-body h2 {
    margin-top: 32px;
    margin-bottom: 16px;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
}
.article-body p, .case-detail-body p {
    margin-bottom: 16px;
}
.article-body img, .case-detail-body img {
    border-radius: var(--radius);
    margin: 24px 0;
}

/* 面包屑增强 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    margin-top: 12px;
}
.breadcrumb a {
    color: rgba(255,255,255,0.6);
    transition: color 0.3s;
}
.breadcrumb a:hover {
    color: var(--cyan);
}
.breadcrumb span {
    color: rgba(255,255,255,0.4);
}

/* 响应式微调 */
@media (max-width: 768px) {
    .section-title { font-size: 1.5rem; }
    .section { padding: 56px 0; }
    .hero::before, .hero::after { width: 250px; height: 250px; }
    .section-dark::before { width: 300px; height: 300px; }
}

.case-block-pain h2 { border-color: #ef4444; }
.case-block-solution h2 { border-color: #2563eb; }
.case-block-effect h2 { border-color: #16a34a; }

.case-block p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text);
}

.case-detail-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text);
}

.case-detail-content h2 { font-size: 1.4rem; margin: 1.2em 0 0.4em; }
.case-detail-content h3 { font-size: 1.2rem; margin: 1em 0 0.3em; }
.case-detail-content p { margin-bottom: 0.8em; }
.case-detail-content ul, .case-detail-content ol { padding-left: 1.5em; margin-bottom: 0.8em; }
.case-detail-content img { max-width: 100%; border-radius: 8px; margin: 12px 0; }

.case-stats-detail {
    display: flex;
    gap: 32px;
    padding: 32px;
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.case-stat-item {
    text-align: center;
    flex: 1;
}

.case-stat-item .stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
}

.case-stat-item .stat-label {
    display: block;
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 4px;
}

.case-cta {
    text-align: center;
    padding: 40px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    margin-top: 40px;
}

.case-cta h3 {
    color: #fff;
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.case-cta p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
}

.case-cta .btn {
    margin: 0 8px;
}

.related-cases {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.related-cases .section-title {
    font-size: 1.5rem;
    margin-bottom: 24px;
    text-align: center;
}

.case-card .case-link {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .case-stats-detail { flex-direction: column; gap: 16px; }
    .case-cta { padding: 24px; }
    .case-cta .btn { display: block; margin: 8px 0; }
}

/* ===== Related Links Section (Internal Linking) ===== */
.related-links-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.related-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.related-link-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid #eee;
}

.related-link-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-color: var(--accent);
}

.related-link-card .related-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f4ff;
    border-radius: 12px;
}

.related-link-card .related-body {
    flex: 1;
}

.related-link-card .related-body h3 {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 4px;
}

.related-link-card .related-body p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

.related-link-card .related-arrow {
    color: var(--accent);
    font-size: 1.2rem;
    flex-shrink: 0;
}

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

/* ===== News Grid (for related news) ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.news-card {
    display: block;
    text-decoration: none;
    color: var(--text);
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.news-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.news-card .news-body {
    padding: 20px;
}

.news-card .news-category {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.news-card h3 {
    font-size: 1.05rem;
    color: var(--dark);
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-card .news-date {
    font-size: 0.85rem;
    color: var(--text-light);
    display: block;
    margin-bottom: 8px;
}

.news-card p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.news-card p.clamp-2 {
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.news-card h3.clamp-2 {
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

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

/* ===== Partner Apply Form (Redesigned) ===== */
.partner-apply-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    max-width: 1000px;
    margin: 40px auto 0;
}

.partner-apply-left {
    display: flex;
    align-items: stretch;
}

.apply-info-card {
    background: var(--primary);
    border-radius: 16px;
    padding: 40px;
    color: #fff;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.apply-info-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: #fff;
}

.apply-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
}

.apply-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

.check-icon {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: #4fc3f7;
    flex-shrink: 0;
}

.apply-contact-box {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.apply-phone-link {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4fc3f7;
    text-decoration: none;
    display: inline-block;
}

.apply-phone-link:hover {
    color: #81d4fa;
}

.partner-apply-right {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    border: 1px solid #f0f0f0;
}

.partner-form .form-group {
    margin-bottom: 20px;
}

.partner-form label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.partner-form .required {
    color: #e53935;
}

.partner-form input,
.partner-form select,
.partner-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 0.95rem;
    color: #333;
    background: #fafafa;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-family: inherit;
}

.partner-form input:focus,
.partner-form select:focus,
.partner-form textarea:focus {
    outline: none;
    border-color: #0066cc;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.partner-form textarea {
    resize: vertical;
    min-height: 80px;
}

.partner-form .btn-block {
    width: 100%;
    padding: 14px;
    font-size: 1.05rem;
    border-radius: 10px;
    margin-top: 8px;
}

.partner-form .form-tip {
    text-align: center;
    color: #4caf50;
    font-weight: 600;
    padding: 12px;
    background: #e8f5e9;
    border-radius: 8px;
    margin-top: 16px;
}

@media (max-width: 768px) {
    .partner-apply-wrap {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .apply-info-card {
        padding: 28px;
    }
    
    .partner-apply-right {
        padding: 28px;
    }
}

/* ===== FAQ Accordion (shared) ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid #eee; border-radius: 12px; margin-bottom: 12px; overflow: hidden; transition: box-shadow 0.3s ease; }
.faq-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }
.faq-item.open { box-shadow: 0 4px 20px rgba(0,102,204,0.1); border-color: rgba(0,102,204,0.2); }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; background: none; border: none; cursor: pointer; font-size: 1.05rem; font-weight: 600; color: #333; text-align: left; }
.faq-q-text { flex: 1; padding-right: 16px; }
.faq-toggle { width: 32px; height: 32px; border-radius: 50%; background: #f0f6ff; color: #0066cc; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 300; transition: all 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-toggle { background: #0066cc; color: #fff; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 24px; }
.faq-item.open .faq-answer { max-height: 500px; padding: 0 24px 20px 24px; }
.faq-answer p { color: #666; line-height: 1.8; margin: 0; }
@media (max-width: 768px) {
    .faq-question { padding: 16px; font-size: 0.95rem; }
}

/* ========================================
   视觉提升 v3.0 — 质感与动效
   ======================================== */

/* 板块交替背景 */
.section-bg-alt {
    background: var(--bg-light);
}
.section-dark {
    background: var(--primary) !important;
}
.section-gray {
    background: var(--bg-deep) !important;
}
.other-business {
    background: var(--bg-deep) !important;
}
.cases-section {
    background: var(--white) !important;
}

/* 滚动入场动画 */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 卡片图片hover放大 */
.case-card .case-image img,
.news-card .news-image img {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card:hover .case-image img,
.news-card:hover .news-image img {
    transform: scale(1.06);
}

/* 新闻卡片hover增强 */
.news-card {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.news-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(0,102,255,0.15);
}

/* 关联链接卡片hover增强 */
.related-link-card {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.related-link-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(0,102,255,0.15);
}

/* FAQ卡片hover增强 */
.faq-item {
    transition: all 0.3s ease;
}
.faq-item:hover {
    box-shadow: var(--shadow-md);
}
.faq-item.open {
    box-shadow: var(--shadow-accent);
}

/* 数据项hover增强 */
.data-item {
    transition: all 0.3s ease;
}
.data-item:hover .num {
    transform: scale(1.1);
}

/* 对比框hover增强 */
.comparison-col {
    transition: all 0.35s ease;
}
.comparison-col.before:hover {
    box-shadow: 0 8px 30px rgba(239,68,68,0.08);
}
.comparison-col.after:hover {
    box-shadow: 0 8px 30px rgba(16,185,129,0.08);
    border-color: rgba(16,185,129,0.3);
}

/* 导航链接下划线动效 */
.nav-menu > li > a {
    position: relative;
}
.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--cyan);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
.nav-menu > li > a:hover::after {
    width: 100%;
}

/* 按钮增强 */
.btn {
    position: relative;
    overflow: hidden;
}
.btn-outline-dark {
    transition: all 0.35s ease;
}
.btn-outline-dark:hover {
    box-shadow: var(--shadow-accent);
    transform: translateY(-2px);
}

/* 标题装饰线动效 */
.section-title::after {
    transition: width 0.5s ease;
}
.section:hover .section-title::after {
    width: 80px;
}

/* 标签hover */
.section-tag {
    transition: all 0.3s ease;
}
.section-tag:hover {
    background: rgba(0,102,255,0.12);
    border-color: rgba(0,102,255,0.2);
}

/* 合作步骤hover — 仅圆圈动效，整体不变 */
.coop-step {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .fade-up {
        opacity: 1;
        transform: none;
    }
    .footer-wechat .wechat-qr,
    .footer-wechat .wechat-qr-placeholder {
        width: 100px;
        height: 100px;
    }
}