/* ============================================
   凯盛债务管理 — 专业催收网站样式
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
    --primary: #1a3a5c;
    --primary-light: #2a5a8c;
    --primary-dark: #0f2440;
    --accent: #c8a45a;
    --accent-light: #e0c87a;
    --accent-dark: #a88a3a;
    --white: #ffffff;
    --off-white: #f8f9fa;
    --gray-50: #f0f2f5;
    --gray-100: #e4e7ec;
    --gray-200: #cdd3dc;
    --gray-300: #9aa5b4;
    --gray-400: #6b7a8d;
    --gray-500: #4a5568;
    --gray-600: #2d3748;
    --gray-700: #1a202c;
    --success: #38a169;
    --danger: #e53e3e;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
    font-family: var(--font);
    color: var(--gray-600);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- 通用按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-family: var(--font);
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--white);
    border-color: var(--accent);
    box-shadow: 0 4px 15px rgba(200, 164, 90, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(200, 164, 90, 0.5);
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

/* ---------- Section 通用 ---------- */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, rgba(200,164,90,0.1), rgba(200,164,90,0.05));
    color: var(--accent-dark);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 16px;
    border: 1px solid rgba(200,164,90,0.2);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-desc {
    font-size: 16px;
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.logo-icon {
    font-size: 28px;
    color: var(--accent);
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .logo-text {
    color: var(--primary);
}

.logo-sub {
    font-weight: 400;
    font-size: 14px;
    opacity: 0.8;
    margin-left: 4px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar.scrolled .nav-links a {
    color: var(--gray-500);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
    background: rgba(255,255,255,0.15);
}

.navbar.scrolled .nav-links a:hover,
.navbar.scrolled .nav-links a.active {
    color: var(--primary);
    background: rgba(26,58,92,0.08);
}

.nav-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
    color: var(--white) !important;
    border-radius: var(--radius-sm) !important;
    padding: 10px 20px !important;
}

.nav-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(200,164,90,0.4);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

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

.navbar.scrolled .mobile-toggle span {
    background: var(--primary);
}

/* ============================================
   Hero 首屏
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(200,164,90,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(42,90,140,0.3) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(200,164,90,0.3);
    border-radius: 50%;
    animation: float-particle linear infinite;
}

@keyframes float-particle {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 120px 24px 80px;
    max-width: 900px;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(200,164,90,0.15);
    border: 1px solid rgba(200,164,90,0.3);
    border-radius: 50px;
    color: var(--accent-light);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 4px;
    margin-bottom: 32px;
    animation: fadeInDown 0.8s ease;
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

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

.hero-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.75);
    line-height: 1.8;
    margin-bottom: 48px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 48px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 42px;
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
}

.stat-suffix {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-light);
}

.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-top: 8px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 12px;
    animation: bounce 2s ease infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255,255,255,0.4);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
    margin: 8px auto 0;
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   服务项目
   ============================================ */
.services {
    background: var(--off-white);
}

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

.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(26,58,92,0.08), rgba(200,164,90,0.08));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: var(--gray-400);
    margin-bottom: 16px;
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features li {
    padding: 4px 12px;
    background: var(--gray-50);
    border-radius: 50px;
    font-size: 12px;
    color: var(--gray-500);
    border: 1px solid var(--gray-100);
}

/* ============================================
   业务流程
   ============================================ */
.process {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    position: relative;
    overflow: hidden;
}

.process::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(200,164,90,0.08), transparent 70%);
    border-radius: 50%;
}

.process .section-tag {
    background: rgba(200,164,90,0.15);
    border-color: rgba(200,164,90,0.3);
    color: var(--accent-light);
}

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

.process .section-desc {
    color: rgba(255,255,255,0.6);
}

.process-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, rgba(200,164,90,0.4), transparent);
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 40px;
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 900;
    color: var(--white);
    box-shadow: 0 4px 20px rgba(200,164,90,0.3);
    position: relative;
    z-index: 2;
}

.step-content {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    flex: 1;
    transition: var(--transition);
}

.step-content:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(200,164,90,0.3);
    transform: translateX(8px);
}

.step-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
}

/* ============================================
   核心优势
   ============================================ */
.advantages {
    background: var(--white);
}

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

.advantage-card {
    text-align: center;
    padding: 40px 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    background: var(--white);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(200,164,90,0.3);
}

.adv-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ============================================
   成功案例
   ============================================ */
.cases {
    background: var(--gray-50);
}

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

.case-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.case-header {
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.case-tag {
    padding: 4px 14px;
    background: rgba(255,255,255,0.15);
    border-radius: 50px;
    font-size: 12px;
    color: var(--white);
    font-weight: 500;
}

.case-amount {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-light);
}

.case-card h3 {
    padding: 20px 24px 12px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.5;
}

.case-desc {
    padding: 0 24px 16px;
    font-size: 13px;
    color: var(--gray-400);
    line-height: 1.7;
}

.case-meta {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    gap: 24px;
    font-size: 13px;
    color: var(--gray-400);
}

/* ============================================
   客户评价
   ============================================ */
.testimonials {
    background: var(--white);
    padding: 100px 0;
}

.testimonial-slider {
    position: relative;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-card {
    min-width: 100%;
    padding: 48px;
    background: linear-gradient(135deg, rgba(26,58,92,0.03), rgba(200,164,90,0.03));
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    text-align: center;
}

.testimonial-stars {
    font-size: 24px;
    color: var(--accent);
    margin-bottom: 24px;
    letter-spacing: 4px;
}

.testimonial-text {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.9;
    margin-bottom: 32px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.author-avatar {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
}

.author-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

.author-title {
    font-size: 13px;
    color: var(--gray-400);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
}

.slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--gray-200);
    background: var(--white);
    font-size: 20px;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(200,164,90,0.05);
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-200);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--accent);
    width: 28px;
    border-radius: 5px;
}

/* ============================================
   关于我们
   ============================================ */
.about {
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-highlights {
    margin-top: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.highlight-item:hover {
    border-color: rgba(200,164,90,0.3);
    box-shadow: var(--shadow-sm);
}

.highlight-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.highlight-item strong {
    display: block;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 2px;
}

.highlight-item span {
    font-size: 12px;
    color: var(--gray-400);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-image-placeholder {
    width: 100%;
    max-width: 380px;
    aspect-ratio: 1;
    position: relative;
}

.about-graphic {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.graphic-circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    animation: pulse-ring 3s ease-in-out infinite;
}

.graphic-circle.outer {
    width: 100%;
    height: 100%;
    border-color: rgba(200,164,90,0.2);
    animation-delay: 0s;
}

.graphic-circle.middle {
    width: 75%;
    height: 75%;
    border-color: rgba(200,164,90,0.35);
    animation-delay: 0.5s;
}

.graphic-circle.inner {
    width: 50%;
    height: 50%;
    border-color: rgba(200,164,90,0.5);
    animation-delay: 1s;
}

@keyframes pulse-ring {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.7; }
}

.graphic-center {
    text-align: center;
    z-index: 2;
}

.graphic-year {
    display: block;
    font-size: 64px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.graphic-label {
    font-size: 14px;
    color: var(--gray-400);
    margin-top: 4px;
}

/* ============================================
   联系我们
   ============================================ */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.6fr;
    gap: 40px;
    align-items: start;
}

.contact-form {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--gray-100);
}

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

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 8px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font);
    color: var(--gray-600);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(200,164,90,0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-300);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--gray-400);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.link {
    color: var(--primary-light);
    text-decoration: underline;
}

.link:hover {
    color: var(--accent-dark);
}

.form-note {
    text-align: center;
    font-size: 12px;
    color: var(--gray-300);
    margin-top: 16px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid var(--gray-100);
}

.info-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-icon {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.info-item strong {
    display: block;
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 2px;
}

.info-item span {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
}

.trust-card h3 {
    border-bottom-color: var(--success);
}

.trust-item {
    padding: 10px 0;
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
    border-bottom: 1px solid var(--gray-100);
}

.trust-item:last-child {
    border-bottom: none;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: var(--gray-700);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.35);
}

.footer-disclaimer {
    margin-top: 8px;
    font-size: 11px !important;
}

/* ============================================
   回到顶部
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    font-size: 20px;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

/* ============================================
   浮动咨询按钮
   ============================================ */
.floating-cta {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
}

.cta-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--white);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(200,164,90,0.4);
    transition: var(--transition);
    animation: pulse-cta 2s ease infinite;
}

.cta-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 30px rgba(200,164,90,0.6);
}

@keyframes pulse-cta {
    0%, 100% { box-shadow: 0 4px 20px rgba(200,164,90,0.4); }
    50% { box-shadow: 0 4px 30px rgba(200,164,90,0.6); }
}

.cta-icon {
    font-size: 20px;
}

/* ============================================
   表单提交成功提示
   ============================================ */
.form-success {
    display: none;
    text-align: center;
    padding: 60px 40px;
}

.form-success.show {
    display: block;
}

.form-success .success-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 12px;
}

.form-success p {
    font-size: 15px;
    color: var(--gray-400);
}

/* ============================================
   AOS 动画（简易版）
   ============================================ */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"] {
    transform: translateY(40px);
}

[data-aos="fade-right"] {
    transform: translateX(-40px);
}

[data-aos="fade-left"] {
    transform: translateX(40px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .services-grid,
    .advantages-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 42px;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-visual {
        order: -1;
    }

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

@media (max-width: 768px) {
    section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 28px;
    }

    /* 导航 */
    .mobile-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15,36,64,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 16px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 18px;
        color: rgba(255,255,255,0.85) !important;
    }

    /* Hero */
    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 15px;
        br { display: none; }
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

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

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    /* 服务 */
    .services-grid,
    .advantages-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }

    /* 流程 */
    .process-timeline::before {
        left: 39px;
    }

    .process-step {
        gap: 16px;
    }

    .step-number {
        width: 60px;
        height: 60px;
        font-size: 18px;
    }

    .step-content {
        padding: 20px;
    }

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

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

    .contact-form {
        padding: 24px;
    }

    /* 关于 */
    .about-highlights {
        grid-template-columns: 1fr;
    }

    /* 评价 */
    .testimonial-card {
        padding: 28px 20px;
    }

    /* 页脚 */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* 浮动按钮 */
    .floating-cta {
        bottom: 20px;
        right: 20px;
    }

    .cta-text {
        display: none;
    }

    .cta-btn {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        justify-content: center;
        padding: 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-stats {
        grid-template-columns: 1fr 1fr;
    }

    .stat-number {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .process-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .process-timeline::before {
        display: none;
    }
}