/* ========================================
   乌小二官网 - 主样式表
   设计理念：高端、大气、传统与现代融合
   主色调：深绿 + 金色
======================================== */

/* CSS 变量 */
:root {
    --color-primary: #0d2818;
    --color-primary-light: #1a3a2e;
    --color-secondary: #2d5a3d;
    --color-accent: #c9a961;
    --color-accent-light: #e8d5a3;
    --color-accent-dark: #a8893d;
    --color-cream: #f8f6f1;
    --color-white: #ffffff;
    --color-dark: #0f1f17;
    --color-text: #1a1a1a;
    --color-text-light: #ffffff;
    --color-text-muted: #6b7280;
    --color-border: rgba(201, 169, 97, 0.2);
    
    --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-gold: 0 8px 30px rgba(201, 169, 97, 0.3);
    
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease;
    
    --container-max: 1200px;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-cream);
    overflow-x: hidden;
    line-height: 1.8;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   导航栏
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(13, 40, 24, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 14px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    border-radius: 10px;
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
}

.nav-logo:hover .logo-icon {
    transform: scale(1.08) rotate(-3deg);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
}

.navbar:not(.scrolled) .logo-text {
    color: var(--color-white);
}

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

.nav-link {
    padding: 8px 16px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent);
    background: rgba(201, 169, 97, 0.1);
}

.nav-link.active {
    color: var(--color-accent);
}

.nav-cta {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary) !important;
    padding: 10px 24px;
    font-weight: 600;
    margin-left: 8px;
}

.nav-cta:hover {
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
    color: var(--color-primary) !important;
}

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

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.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 首屏
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--color-primary);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(45, 90, 61, 0.6) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(201, 169, 97, 0.15) 0%, transparent 50%),
        linear-gradient(135deg, #0a1f12 0%, #0d2818 50%, #0f2818 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M30 0L0 30l30 30 30-30L30 0z' fill='none' stroke='%23c9a961' stroke-width='0.5' opacity='0.04'/%3E%3C/svg%3E");
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
}

.hero-particles::before {
    top: -200px;
    right: -100px;
    background: var(--color-accent);
    animation: float 8s ease-in-out infinite;
}

.hero-particles::after {
    bottom: -200px;
    left: -100px;
    background: var(--color-secondary);
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -30px) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 900px;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(201, 169, 97, 0.12);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 50px;
    color: var(--color-accent);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    margin-bottom: 32px;
}

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

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

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

.title-line {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(48px, 8vw, 88px);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 8px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    background: linear-gradient(180deg, #ffffff 0%, #e8d5a3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-sub {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 400;
    color: var(--color-accent);
    letter-spacing: 6px;
    margin-top: 12px;
}

.hero-desc {
    font-size: clamp(15px, 2vw, 18px);
    color: rgba(255, 255, 255, 0.75);
    line-height: 2;
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    letter-spacing: 1px;
    font-family: var(--font-sans);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(201, 169, 97, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-3px);
}

.btn-gold {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(201, 169, 97, 0.5);
}

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

/* Hero 统计数据 */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
}

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

.stat-num {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 2px;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(201, 169, 97, 0.2);
}

/* 滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    animation: scrollWheel 1.5s ease infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}

.scroll-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 2px;
}

/* ========================================
   通用 Section
======================================== */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--color-accent-dark);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 4px;
    margin-bottom: 16px;
}

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

.section-header-light .section-tag {
    color: var(--color-accent);
}

.section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    margin: 0 auto;
    border-radius: 2px;
}

.section-subtitle {
    margin-top: 20px;
    font-size: 16px;
    color: var(--color-text-muted);
}

/* ========================================
   公司简介
======================================== */
.about {
    background: var(--color-cream);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text {
    font-size: 16px;
    line-height: 2.2;
    color: #444;
}

.about-text p {
    margin-bottom: 20px;
}

.about-lead {
    font-size: 18px !important;
    color: var(--color-text) !important;
    font-weight: 500;
}

.highlight {
    color: var(--color-primary-light);
    font-weight: 600;
}

.text-gold {
    color: var(--color-accent-dark);
    font-weight: 600;
}

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

.about-card {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.about-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
}

.card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.12), rgba(201, 169, 97, 0.04));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-dark);
    transition: var(--transition);
}

.about-card:hover .card-icon {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    transform: scale(1.1);
}

.card-icon svg {
    width: 30px;
    height: 30px;
}

.about-card h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.about-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ========================================
   服务介绍
======================================== */
.services {
    background: var(--color-white);
}

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

.service-item {
    background: var(--color-cream);
    padding: 36px 30px;
    border-radius: 16px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-item:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--color-border);
}

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

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

.service-highlight .service-num {
    color: var(--color-accent);
}

.service-highlight h3 {
    color: var(--color-white);
}

.service-highlight p {
    color: rgba(255, 255, 255, 0.7);
}

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

.service-num {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-accent-dark);
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.8;
}

.service-body h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.service-body p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   团队与成就
======================================== */
.achievements {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.achievements::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 80% 20%, rgba(201, 169, 97, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(45, 90, 61, 0.3) 0%, transparent 40%);
}

.achievements-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.achievements-text {
    font-size: 16px;
    line-height: 2.2;
    color: rgba(255, 255, 255, 0.8);
}

.achievements-text p {
    margin-bottom: 18px;
}

.achievements-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.achievement-stat {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(201, 169, 97, 0.15);
    padding: 28px 24px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.achievement-stat:hover {
    background: rgba(201, 169, 97, 0.08);
    border-color: rgba(201, 169, 97, 0.4);
    transform: translateY(-4px);
}

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
    margin-bottom: 8px;
}

.count {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}

.unit {
    font-size: 16px;
    color: var(--color-accent);
    font-weight: 600;
}

.stat-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 1px;
}

/* ========================================
   门店五大困局
======================================== */
.pain-points {
    background: var(--color-cream);
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.pain-card {
    background: var(--color-white);
    padding: 36px 20px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.pain-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #d44, #c33);
    transform: scaleX(0);
    transform-origin: center;
    transition: var(--transition);
}

.pain-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

.pain-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #fff0f0, #ffe8e8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #c33;
    transition: var(--transition);
}

.pain-card:hover .pain-icon {
    background: linear-gradient(135deg, #d44, #c33);
    color: var(--color-white);
    transform: scale(1.1);
}

.pain-icon svg {
    width: 32px;
    height: 32px;
}

.pain-card h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.pain-tag {
    display: inline-block;
    padding: 3px 12px;
    background: #fff0f0;
    color: #c33;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 12px;
}

.pain-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   破局方案
======================================== */
.solutions {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 50%, rgba(201, 169, 97, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 90% 50%, rgba(45, 90, 61, 0.2) 0%, transparent 50%);
}

.solutions-list {
    max-width: 800px;
    margin: 0 auto 60px;
    position: relative;
    z-index: 1;
}

.solution-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 28px 36px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(201, 169, 97, 0.15);
    border-radius: 16px;
    margin-bottom: 16px;
    transition: var(--transition);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.solution-item:hover {
    background: rgba(201, 169, 97, 0.08);
    border-color: rgba(201, 169, 97, 0.4);
    transform: translateX(8px);
}

.solution-number {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.5;
    line-height: 1;
    flex-shrink: 0;
    transition: var(--transition);
}

.solution-item:hover .solution-number {
    opacity: 1;
    transform: scale(1.1);
}

.solution-content {
    flex: 1;
}

.solution-content h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 4px;
}

.solution-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.solution-arrow {
    color: var(--color-accent);
    opacity: 0.4;
    transition: var(--transition);
}

.solution-arrow svg {
    width: 24px;
    height: 24px;
}

.solution-item:hover .solution-arrow {
    opacity: 1;
    transform: translateX(6px);
}

/* 一店五开 */
.business-model {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.12), rgba(201, 169, 97, 0.04));
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 24px;
    padding: 48px 40px;
    position: relative;
    z-index: 1;
}

.model-header {
    text-align: center;
    margin-bottom: 36px;
}

.model-header h3 {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 4px;
    margin-bottom: 8px;
}

.model-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.model-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.model-check {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(201, 169, 97, 0.3);
}

.model-item span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
}

/* ========================================
   四大板块
======================================== */
.pillars {
    background: var(--color-cream);
}

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

.pillar-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 40px 32px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(201, 169, 97, 0.04), transparent);
    opacity: 0;
    transition: var(--transition);
}

.pillar-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border);
}

.pillar-card:hover::before {
    opacity: 1;
}

.pillar-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    position: relative;
}

.pillar-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
    transition: var(--transition);
}

.pillar-card:hover .pillar-icon {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    transform: rotate(-5deg) scale(1.05);
}

.pillar-icon svg {
    width: 30px;
    height: 30px;
}

.pillar-header h3 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 2px;
}

.pillar-list {
    position: relative;
}

.pillar-list li {
    padding: 10px 0;
    font-size: 15px;
    color: #555;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    padding-left: 20px;
    transition: var(--transition-fast);
}

.pillar-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    transition: var(--transition);
}

.pillar-list li:hover {
    color: var(--color-primary);
    padding-left: 28px;
}

.pillar-list li:hover::before {
    width: 10px;
    height: 10px;
}

.pillar-list li:last-child {
    border-bottom: none;
}

/* ========================================
   联系我们 / CTA
======================================== */
.contact {
    background: var(--color-cream);
    padding-bottom: 120px;
}

.contact-box {
    position: relative;
    border-radius: 28px;
    overflow: hidden;
    text-align: center;
    padding: 80px 40px;
}

.contact-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(45, 90, 61, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(201, 169, 97, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, #0a1f12 0%, #0d2818 50%, #0f2818 100%);
    z-index: 0;
}

.contact-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Ccircle cx='20' cy='20' r='1' fill='%23c9a961' opacity='0.08'/%3E%3C/svg%3E");
}

.contact-content {
    position: relative;
    z-index: 1;
}

.contact-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 5vw, 44px);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.contact-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 2;
    margin-bottom: 32px;
}

.contact-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.contact-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-size: 16px;
    font-weight: 500;
}

.feature-check {
    width: 28px;
    height: 28px;
    background: rgba(201, 169, 97, 0.15);
    border: 1px solid rgba(201, 169, 97, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* ========================================
   页脚
======================================== */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    font-size: 20px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-slogan {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 15px;
    color: var(--color-white);
    margin-bottom: 16px;
    font-weight: 600;
}

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

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition-fast);
}

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

.footer-col ul li:not(a) {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-icp {
    margin-top: 8px;
}

.footer-icp a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    transition: all 0.2s ease;
}

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

/* ========================================
   返回顶部
======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-gold);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(201, 169, 97, 0.5);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ========================================
   咨询弹窗
======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    border-radius: 24px;
    padding: 48px 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 28px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-text);
    transform: rotate(90deg);
}

.modal-content h3 {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.modal-content > p {
    color: var(--color-text-muted);
    font-size: 15px;
    margin-bottom: 28px;
}

.modal-info {
    text-align: left;
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.info-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

.info-value {
    font-size: 14px;
    color: var(--color-text);
    font-weight: 500;
}

.modal-tip {
    font-size: 14px;
    color: var(--color-accent-dark);
    background: rgba(201, 169, 97, 0.08);
    padding: 12px 20px;
    border-radius: 12px;
}

/* ========================================
   动画 - 滚动揭示
======================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    transition-delay: var(--delay, 0s);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 1024px) {
    .about-content,
    .achievements-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pain-points-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .model-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(13, 40, 24, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 80px 24px 24px;
        gap: 8px;
        transition: right 0.4s ease;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .pain-points-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .model-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
    
    .solution-item {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .contact-features {
        gap: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 0 auto 50px;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .pain-points-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-stats {
        grid-template-columns: 1fr;
    }
    
    .model-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .contact-box {
        padding: 50px 24px;
    }
    
    .modal-content {
        padding: 36px 24px;
    }
}