/* 仰峰硒养山泉 - 全屏大气样式表 */
/* 品牌主色调: #1E7CB6 */

/* 颜色变量 */
:root {
    --brand-primary: #1E7CB6;
    --brand-primary-dark: #15608f;
    --brand-primary-light: #2a8fd6;
    --brand-primary-very-light: #e8f2fa;
    --brand-secondary: #4CAF50;
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #999999;
    --background-light: #f8f9fa;
    --background-lighter: #f0f4f8;
    --border-color: #e0e0e0;
    --white: #ffffff;
    --shadow-light: 0 2px 10px rgba(30, 124, 182, 0.08);
    --shadow-medium: 0 5px 20px rgba(30, 124, 182, 0.12);
    --shadow-heavy: 0 10px 30px rgba(30, 124, 182, 0.15);
    --gradient-primary: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
    --gradient-light: linear-gradient(135deg, var(--background-light) 0%, var(--white) 100%);
    --gradient-very-light: linear-gradient(135deg, var(--brand-primary-very-light) 0%, var(--white) 100%);
}

/* 重置与基础排版 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* 全屏容器 - 替代原来的.container */
.full-width-container {
    width: 100%;
    padding: 0 5%;
    margin: 0 auto;
}

/* 当屏幕很大时，限制最大宽度但保持全屏感 */
@media (min-width: 1600px) {
    .full-width-container {
        padding: 0 10%;
    }
}

@media (min-width: 2000px) {
    .full-width-container {
        padding: 0 15%;
    }
}

/* 卡片阴影辅助类 */
.card-elevated {
    border-radius: 15px;
    background: var(--white);
    box-shadow: var(--shadow-light);
}

/* 通用按钮 */
.cta-button {
    background-color: var(--brand-primary);
    color: var(--white);
    border: none;
    padding: 14px 36px;
    font-size: 1.1rem;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    display: inline-block;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
}

.cta-button:hover {
    background-color: var(--brand-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 124, 182, 0.3);
}

.cta-button:active {
    transform: translateY(0);
    box-shadow: none;
}

.cta-button.outline {
    background-color: transparent;
    border: 1px solid var(--white);
    color: var(--white);
}

.cta-button.primary {
    background-color: var(--white);
    color: var(--brand-primary);
}

.cta-button.secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

/* 区块头部标题 - 全屏宽度 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
    width: 100%;
}

.section-header h2 {
    color: var(--brand-primary);
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--brand-primary);
}

.section-header p {
    color: var(--text-medium);
    font-size: 1.2rem;
    max-width: 900px;
    margin: 30px auto 0;
    line-height: 1.8;
}

/* 内容区块通用 - 全屏宽度 */
.content-section {
    padding: 80px 0;
    position: relative;
    width: 100%;
}

/* 顶部导航 - 全屏宽度 */
.site-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
}

.header-container {
    width: 100%;
    padding: 0 5%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
    position: relative;
}

/* Logo 全屏调整 */
.logo-container {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.logo-link:hover {
    transform: translateY(-1px);
}

.site-logo {
    height: 65px;
    width: auto;
    margin-right: 12px;
    transition: transform 0.3s ease;
}

.cctv-logo {
    height: 50px;
    width: auto;
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.cctv-logo:hover {
    transform: scale(1.03);
}

/* 导航菜单 - 全屏调整 */
.main-navigation {
    margin-left: auto;
    position: relative;
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 16px;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--brand-primary);
}

.nav-link.active {
    color: var(--brand-primary);
    font-weight: 600;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--brand-primary);
    transition: width 0.3s ease;
}

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

/* 下拉菜单 */
.submenu {
    position: absolute;
    top: 110%;
    left: 0;
    background-color: var(--white);
    min-width: 200px;
    box-shadow: var(--shadow-medium);
    border-radius: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.25s ease;
    z-index: 1000;
    padding: 10px 0;
}

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

.submenu-item {
    list-style: none;
}

.submenu-link {
    display: block;
    padding: 12px 24px;
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.2s ease;
    font-size: 15px;
}

.submenu-link:hover {
    background-color: var(--brand-primary-very-light);
    color: var(--brand-primary);
    padding-left: 30px;
}

/* 头部轮播区 - 全屏 */
.hero-slider {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    margin-top: 90px;
    width: 100%;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    width: 100%;
    height: 100%;
}

.slide.active {
    opacity: 1;
}

.slide-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    transform: scale(1.03);
    transition: transform 6s ease-out;
    width: 100%;
    height: 100%;
}

.slide.active .slide-image {
    transform: scale(1.05);
}

.slide-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 10% 20%, rgba(0,0,0,0.45) 0, rgba(0,0,0,0.1) 45%, rgba(0,0,0,0.6) 100%);
}

/* 轮播文字内容 */
.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    z-index: 2;
    width: 90%;
    max-width: 1000px;
    padding: 0 20px;
}

.slide-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.55);
    line-height: 1.18;
    letter-spacing: 0.08em;
}

.slide-title.small {
    font-size: 3.2rem;
}

.slide-subtitle {
    font-size: 1.6rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
}

/* 五重元素圆点 */
.elements-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0 30px;
    flex-wrap: wrap;
}

.element-item {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--brand-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.element-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 22px rgba(0, 0, 0, 0.28);
}

/* 轮播指示点 */
.slider-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--white);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background-color: var(--white);
    transform: scale(1.2);
}

.indicator:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

/* 轮播箭头 */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 3;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-nav:hover {
    background: rgba(255, 255, 255, 0.32);
    transform: translateY(-50%) scale(1.06);
}

.slider-nav.prev {
    left: 40px;
}

.slider-nav.next {
    right: 40px;
}

/* 主体容器 - 全屏 */
.main-content {
    position: relative;
    z-index: 1;
    width: 100%;
}

/* 我们的水板块 - 全屏 */
.our-water-section {
    background-color: var(--white);
    width: 100%;
    padding: 70px 0 50px;
}

.cloud-prelude {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 30px;
    background: var(--background-light);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.prelude-content h3 {
    color: var(--brand-primary);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.prelude-content p {
    font-size: 1.2rem;
    line-height: 1.9;
    color: var(--text-medium);
    max-width: 1000px;
    margin: 0 auto 12px;
}

/* 整个云雨场景 */
.prelude-visual {
    margin-top: 40px;
}

.cloud-animation {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.cloud-scene {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 大三倍的云 */
.cloud.big-cloud {
    font-size: 9rem;
    line-height: 1;
    filter: drop-shadow(0 18px 32px rgba(0, 0, 0, 0.20));
    transition: transform 0.6s ease, opacity 0.6s ease, filter 0.6s ease;
    will-change: transform, opacity, filter;
}

/* 雨水区域 */
.rain {
    position: relative;
    height: 100px;
    margin-top: 10px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.drop {
    width: 3px;
    height: 50px;
    border-radius: 999px;
    background: linear-gradient(to bottom,
        rgba(43, 124, 255, 0.9),
        rgba(43, 124, 255, 0)
    );
    opacity: 0.9;
    animation: rain-drop 0.9s linear infinite;
}

.drop-1 { animation-delay: 0s; }
.drop-2 { animation-delay: 0.15s; }
.drop-3 { animation-delay: 0.3s; }
.drop-4 { animation-delay: 0.45s; }
.drop-5 { animation-delay: 0.6s; }

@keyframes rain-drop {
    0% {
        transform: translateY(-10px);
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    100% {
        transform: translateY(44px);
        opacity: 0;
    }
}

/* 明月山文字 */
.mountain {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--brand-primary);
    opacity: 0.25;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease, text-shadow 0.6s ease;
    will-change: opacity, transform;
}

/* ===== 三个阶段：云 → 下雨 → 落到明月山 ===== */

/* 阶段 1：大云出现，还没下雨 */
.cloud-prelude.stage-cloud .big-cloud {
    transform: translateY(0) scale(1);
}

/* 阶段 2：下雨中 */
.cloud-prelude.stage-rain .big-cloud {
    transform: translateY(-8px) scale(0.96);
    filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.25));
}

.cloud-prelude.stage-rain .rain {
    opacity: 1;
}

/* 阶段 3：云变成雨落下 → 明月山接住 */
.cloud-prelude.stage-mountain .big-cloud {
    transform: translateY(120px) scale(0.7);
    opacity: 0;
    filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.15));
}

.cloud-prelude.stage-mountain .rain {
    opacity: 0;
}

.cloud-prelude.stage-mountain .mountain {
    opacity: 1;
    transform: translateY(0);
    text-shadow: 0 0 20px rgba(43, 124, 255, 0.65);
}

/* 云朵轻微漂浮动画 */
@keyframes cloud-float {
    0%   { transform: translateY(0); }
    50%  { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

/* 四阶段旅程 */
.water-journey-main {
    display: flex;
    flex-direction: column;
    gap: 70px;
    width: 100%;
}

.journey-phase {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
    gap: 40px;
    align-items: center;
    width: 100%;
}

.journey-phase.reverse {
    direction: rtl;
}

.journey-phase.reverse .phase-description {
    direction: ltr;
}

/* 阶段图片 */
.phase-image {
    width: 100%;
    height: 450px;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    opacity: 1 !important;
    transform: none !important;
    overflow: hidden;
    position: relative;
    background-color: #000;
}

.phase-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.03);
    transition: transform 1.5s ease;
}

.phase-image:hover .phase-img {
    transform: scale(1.06);
}

/* 阶段文字 */
.phase-description {
    padding: 20px;
}

.phase-header {
    margin-bottom: 20px;
}

.phase-number {
    font-size: 4.5rem;
    font-weight: bold;
    color: var(--brand-primary);
    line-height: 1;
    margin-bottom: 10px;
}

.phase-header h4 {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.phase-subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
}

.phase-description p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 20px;
}

.phase-description ul {
    margin: 15px 0 25px;
    padding-left: 25px;
}

.phase-description li {
    margin-bottom: 12px;
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 矿物展示 */
.mineral-highlight {
    margin: 25px 0 30px;
}

.mineral-highlight h5 {
    font-size: 1.3rem;
    color: var(--brand-primary);
    margin-bottom: 20px;
}

.minerals-showcase {
    display: flex;
    justify-content: flex-start;
    gap: 15px;
    flex-wrap: wrap;
}

.mineral-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 12px;
    background: var(--background-light);
    border-radius: 12px;
    min-width: 100px;
}

.mineral-symbol {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--brand-primary);
    margin-bottom: 6px;
}

.mineral-name {
    font-size: 1rem;
    color: var(--text-medium);
}

/* 深度展示 */
.depth-showcase {
    text-align: center;
    margin: 30px 0;
    padding: 25px 20px;
    background: var(--background-light);
    border-radius: 12px;
}

.depth-number {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--brand-primary);
    line-height: 1;
}

.depth-label {
    font-size: 1.15rem;
    color: var(--text-medium);
    margin-top: 10px;
}

/* 保护特性 */
.protection-features {
    margin: 30px 0 35px;
}

.protection-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--background-light);
    border-radius: 12px;
}

.protection-icon {
    font-size: 2.2rem;
    margin-right: 20px;
    margin-top: 5px;
}

.protection-text {
    display: flex;
    flex-direction: column;
}

.protection-text strong {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.protection-text span {
    color: var(--text-medium);
    font-size: 1.05rem;
}

/* 哲学说明 */
.philosophy-note {
    margin-top: 25px;
    padding: 25px;
    background: var(--brand-primary-very-light);
    border-radius: 12px;
    font-style: italic;
    text-align: center;
    font-size: 1.1rem;
}

/* 旅程终点：产品收尾 - 全屏 */
.product-journey-end {
    margin: 40px 0 60px;
    padding: 60px 4%;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 20px;
    border: 1px solid var(--brand-primary-very-light);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.journey-end-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
}

.journey-end-header {
    text-align: center;
    margin-bottom: 50px;
}

.journey-end-header h3 {
    color: var(--brand-primary-dark);
    font-size: 3.2rem;
    margin-bottom: 25px;
    font-weight: 700;
}

.journey-end-subtitle {
    font-size: 1.4rem;
    color: var(--text-medium);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

/* 主产品展示 */
.main-product-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    margin-bottom: 70px;
}

.product-image-container {
    width: 400px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.main-product-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.15));
    transition: transform 0.5s ease;
}

.main-product-image:hover {
    transform: translateY(-10px);
}

/* 五重元素总结 */
.elements-summary {
    margin: 60px 0;
    text-align: center;
}

.elements-summary h4 {
    color: var(--brand-primary);
    font-size: 2rem;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.elements-summary h4::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--brand-primary);
}

.elements-grid-final {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.final-element {
    background: white;
    padding: 30px 20px;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
}

.final-element:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--brand-primary-light);
}

.element-symbol {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.element-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.2rem;
}

/* 价值总结 */
.journey-conclusion {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
    margin: 70px 0 50px;
}

.conclusion-card {
    background: white;
    padding: 40px 30px;
    border-radius: 18px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
}

.conclusion-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
    border-color: var(--brand-primary-light);
}

.conclusion-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: inline-block;
}

.conclusion-card h5 {
    color: var(--brand-primary);
    font-size: 1.5rem;
    margin-bottom: 18px;
}

.conclusion-card p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 最终行动号召 */
.final-cta {
    text-align: center;
    padding: 60px;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
    border-radius: 20px;
    color: white;
    margin-top: 60px;
    width: 100%;
}

.cta-message {
    font-size: 1.6rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.cta-message strong {
    font-weight: 700;
    display: block;
    margin-bottom: 15px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

/* 公司介绍 - 全屏 */
.about-section {
    background: var(--gradient-very-light);
    width: 100%;
    padding: 70px 0;
}

.about-content {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
    gap: 50px;
    align-items: center;
    width: 100%;
}

.about-text h3 {
    color: var(--brand-primary);
    font-size: 2.2rem;
    margin-bottom: 25px;
}

.about-text p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 25px;
}

.about-images {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.about-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.about-image:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

/* 品牌介绍 - 全屏 */
.brand-section {
    background-color: var(--white);
    width: 100%;
    padding: 70px 0;
}

.brand-meaning {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    width: 100%;
}

.brand-meaning h3 {
    color: var(--brand-primary);
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.brand-meaning p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-medium);
}

.brand-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    width: 100%;
}

.feature-item {
    text-align: center;
    padding: 35px 25px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
    border-color: var(--brand-primary-light);
}

.feature-icon {
    font-size: 3.2rem;
    margin-bottom: 20px;
    display: block;
}

.feature-item h4 {
    color: var(--brand-primary);
    margin-bottom: 12px;
    font-size: 1.5rem;
}

.feature-item p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 产品中心 - 全屏 */
.products-section {
    background: var(--background-light);
    width: 100%;
    padding: 70px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    margin-top: 40px;
    width: 100%;
}

.product-category {
    text-align: center;
    background: var(--white);
    padding: 35px 25px;
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
}

.product-category:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.category-header {
    margin-bottom: 25px;
}

.category-header h3 {
    color: var(--brand-primary);
    margin-bottom: 10px;
    font-size: 2rem;
}

.category-header p {
    color: var(--text-medium);
    font-size: 1.1rem;
}

.product-sizes {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.product-size {
    background: var(--white);
    padding: 0;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--brand-primary);
    box-shadow: var(--shadow-light);
    min-width: 180px;
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.product-size::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.product-size:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--brand-primary-light);
}

.product-size:hover::before {
    transform: scaleX(1);
}

.product-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.size-info {
    padding: 20px 15px;
}

.size-number {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.size-desc {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: normal;
}

.product-tip {
    margin-top: 35px;
    text-align: center;
    font-size: 1rem;
    color: var(--text-light);
}

/* 检测报告 - 全屏 */
.testing-section {
    background: var(--white);
    width: 100%;
}

.testing-results {
    max-width: 800px;
    margin: 40px auto 20px;
    background: var(--background-light);
    padding: 35px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--brand-primary-very-light);
}

.testing-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 8px;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    gap: 25px;
}

.testing-item:hover {
    background: rgba(255, 255, 255, 0.6);
    padding-left: 15px;
    padding-right: 15px;
    border-radius: 10px;
}

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

.element-info {
    flex: 1;
}

.element-name {
    font-weight: bold;
    color: var(--text-dark);
    font-size: 1.15rem;
}

.element-benefit {
    font-size: 1rem;
    color: var(--text-medium);
    margin-top: 6px;
}

.element-value {
    color: var(--brand-primary);
    font-weight: bold;
    font-size: 1.15rem;
    white-space: nowrap;
}

.certification {
    text-align: center;
    color: var(--text-medium);
    margin-top: 25px;
    font-style: italic;
    font-size: 1rem;
}

/* 招商合作 - 全屏 */
.cooperation-section {
    background: var(--gradient-primary);
    color: var(--white);
    position: relative;
    overflow: hidden;
    width: 100%;
    padding: 100px 0 !important;
}

.cooperation-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.06)"/></svg>');
    background-size: cover;
    pointer-events: none;
}

.cooperation-section .section-header h2,
.cooperation-section .section-header p {
    color: var(--white);
    position: relative;
    z-index: 1;
}

.cooperation-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 60px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.cooperation-info h3,
.target-markets h3 {
    margin-bottom: 35px;
    font-size: 1.8rem;
    position: relative;
}

.cooperation-info h3::after,
.target-markets h3::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 70px;
    height: 3px;
    background: rgba(255, 255, 255, 0.72);
}

.cooperation-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cooperation-info li {
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
    position: relative;
    padding-left: 35px;
    transition: padding-left 0.3s ease, background 0.3s ease;
    font-size: 1.1rem;
}

.cooperation-info li:last-child {
    border-bottom: none;
}

.cooperation-info li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4cd964;
    font-weight: bold;
    font-size: 1.1rem;
}

.cooperation-info li:hover {
    padding-left: 40px;
    background: rgba(0, 0, 0, 0.08);
    border-radius: 8px;
}

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

.market-item {
    background: rgba(255, 255, 255, 0.12);
    padding: 20px 25px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.market-item:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateX(8px);
}

/* 联系我们 - 全屏 */
.contact-section {
    background: var(--background-light);
    width: 100%;
    padding: 100px 0 !important;
}

.contact-header {
    margin-bottom: 40px;
}

.contact-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.contact-badge {
    background: var(--brand-primary);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 999px;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.contact-badge:hover {
    background: var(--brand-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(30, 124, 182, 0.3);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    align-items: stretch;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    padding: 40px 35px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--brand-primary-very-light);
}

.contact-info h3 {
    color: var(--brand-primary);
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.contact-person {
    margin: 25px 0 20px;
    padding: 25px 20px;
    background: var(--background-light);
    border-radius: 15px;
}

.person-name {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--brand-primary);
    margin-bottom: 10px;
}

.person-phone {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-dark);
}

.contact-note {
    font-size: 1.1rem;
    color: var(--text-medium);
    margin-top: 15px;
}

.company-info {
    text-align: center;
    padding: 45px 35px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
}

.company-info:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.company-name {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--brand-primary);
    margin-bottom: 15px;
}

.company-address {
    color: var(--text-medium);
    margin-bottom: 25px;
    font-size: 1.2rem;
}

.copyright {
    color: var(--text-light);
    font-size: 1rem;
}

/* 页脚 - 全屏 */
.site-footer {
    background: var(--brand-primary);
    color: var(--white);
    padding: 30px 0;
    text-align: center;
    font-size: 1.1rem;
    width: 100%;
}

.site-footer p {
    margin: 0;
    opacity: 0.95;
}

/* 页脚链接样式 */
.site-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.site-footer p {
    margin: 0;
    opacity: 0.95;
    font-size: 1.1rem;
}

.footer-links {
    display: flex;
    gap: 20px;
    margin-top: 5px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    padding: 4px 8px;
    border-radius: 4px;
}

.footer-links a:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: underline;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .site-footer .container {
        text-align: center;
        padding: 25px 15px;
    }
    
    .site-footer p {
        font-size: 1rem;
        line-height: 1.5;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    
    .footer-links a {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .site-footer p {
        font-size: 0.9rem;
    }
    
    .footer-links a {
        font-size: 0.85rem;
    }
}

/* 图片模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    inset: 0;
    overflow: auto;
    background-color: rgba(0,0,0,0.82);
}

.modal-content {
    margin: 60px auto;
    display: block;
    max-width: 90%;
    max-height: calc(100vh - 140px);
    object-fit: contain;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border-radius: 6px;
}

.close {
    position: fixed;
    top: 20px;
    right: 30px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
}

/* 水质特点完整板块 - 全屏 */
.water-features-section {
    padding: 70px 0 50px;
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    position: relative;
    width: 100%;
}

.water-features-main-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.water-features-main-header h2 {
    font-size: 3.5rem;
    color: var(--brand-primary-dark);
    font-weight: 700;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.water-features-main-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 5px;
    background: linear-gradient(to right, var(--brand-secondary), var(--brand-primary));
    border-radius: 2px;
}

.water-features-subtitle {
    font-size: 1.4rem;
    color: var(--text-medium);
    line-height: 1.8;
    max-width: 1000px;
    margin: 40px auto 0;
    font-weight: 300;
}

/* 五重生命微元素展示 - 全屏 */
.elements-section {
    padding: 140px 0 60px;
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    width: 100%;
}

.elements-main-display {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* 核心四元素网格 */
.elements-grid-scientific {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

/* 元素卡片样式 */
.element-card {
    background: white;
    padding: 30px 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--brand-primary-very-light);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.element-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--brand-primary-light);
}

.element-header {
    display: flex;
    align-items: center;
    gap: 20px;
}

.element-symbol-large {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--brand-primary);
    min-width: 70px;
}

.element-name-container {
    display: flex;
    flex-direction: column;
}

.element-number {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.element-name-zh {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-dark);
}

.element-name-en {
    font-size: 1rem;
    color: var(--text-medium);
    font-style: italic;
}

.element-value-display {
    text-align: center;
    padding: 15px;
    background: var(--background-light);
    border-radius: 10px;
}

.value-number {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--brand-primary);
}

.value-unit {
    font-size: 1rem;
    color: var(--text-medium);
    margin-top: 5px;
}

.element-benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: var(--brand-primary-very-light);
    border-radius: 10px;
}

.benefit-icon {
    font-size: 1.5rem;
}

.benefit-text {
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 500;
}

/* 偏硅酸特殊卡片 */
.silicate-special {
    max-width: 800px;
    margin: 40px auto;
}

.silicate-card {
    background: linear-gradient(135deg, #f0f7ff 0%, #e3f0ff 100%);
    padding: 40px;
    border-radius: 20px;
    border: 2px solid var(--brand-primary-light);
    text-align: center;
}

.silicate-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.silicate-formula {
    font-size: 4rem;
    font-weight: bold;
    color: var(--brand-primary);
    font-family: 'Courier New', monospace;
}

.silicate-name {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.name-zh {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-dark);
}

.name-en {
    font-size: 1.2rem;
    color: var(--text-medium);
    font-style: italic;
}

.silicate-value-highlight {
    margin: 25px 0;
}

.value-container {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 10px;
}

.value-note {
    color: var(--text-medium);
    font-size: 1.1rem;
    font-style: italic;
}

/* 五元素协同说明 */
.elements-synergy {
    display: flex;
    align-items: center;
    gap: 25px;
    padding: 30px;
    background: var(--gradient-very-light);
    border-radius: 20px;
    margin-top: 40px;
}

.synergy-icon {
    font-size: 4rem;
    flex-shrink: 0;
}

.synergy-content h4 {
    color: var(--brand-primary);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.synergy-content p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* 连接语 */
.features-to-reports {
    text-align: center;
    margin-top: 40px;
    padding: 30px 0;
}

.connector-line {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--brand-primary), transparent);
    margin: 0 auto 20px;
    width: 200px;
}

.connector-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--brand-primary);
    font-size: 1.3rem;
    font-weight: 500;
}

.connector-text .arrow {
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* 旅程产品展示 */
.journey-product-showcase {
    margin-bottom: 60px;
}

/* 水质特点区块样式 - 补充缺失的部分 */
.elements-sub-section {
    margin-bottom: 50px;
}

.elements-header {
    text-align: center;
    margin-bottom: 40px;
}

.elements-header h3 {
    color: var(--brand-primary);
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.elements-subtitle {
    color: var(--text-medium);
    font-size: 1.2rem;
}

/* 响应式调整 */
@media (max-width: 1400px) {
    .slide-title {
        font-size: 3.2rem;
    }
    
    .slide-title.small {
        font-size: 2.6rem;
    }
    
    .slide-subtitle {
        font-size: 1.3rem;
    }
    
    .section-header h2 {
        font-size: 2.4rem;
    }
    
    .journey-phase {
        grid-template-columns: 1fr;
    }
    
    .journey-phase.reverse {
        direction: ltr;
    }
    
    .phase-image {
        order: -1;
        height: 350px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .header-container {
        height: 80px;
    }
    
    .hero-slider {
        margin-top: 80px;
        min-height: 500px;
    }
    
    .nav-menu {
        position: absolute;
        top: 80px;
        right: 0;
        left: 0;
        flex-direction: column;
        background: var(--white);
        padding: 20px 25px;
        box-shadow: var(--shadow-medium);
        transform: translateY(-16px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }
    
    .nav-menu li {
        margin: 8px 0;
    }
    
    .submenu {
        position: static;
        box-shadow: none;
        border-radius: 0;
        padding-left: 20px;
        margin-top: 8px;
    }
    
    .submenu-link {
        padding: 8px 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .full-width-container {
        padding: 0 4%;
    }
    
    .elements-grid-scientific {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .content-section {
        padding: 70px 0;
    }
    
    .water-journey-main {
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .content-section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .section-header p {
        font-size: 1.1rem;
    }
    
    .slide-content {
        top: 52%;
    }
    
    .slide-title {
        font-size: 2.4rem;
    }
    
    .slide-title.small {
        font-size: 2rem;
    }
    
    .slide-subtitle {
        font-size: 1.1rem;
    }
    
    .cloud-prelude {
        padding: 40px 25px;
    }
    
    .cloud.big-cloud {
        font-size: 6rem;
    }
    
    .health-gift,
    .brand-essence,
    .experience-cta {
        padding: 40px 25px;
    }
    
    .about-images {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .about-image {
        height: 180px;
    }
    
    .testing-results {
        padding: 35px 25px;
    }
    
    .cooperation-section,
    .contact-section {
        padding: 70px 0 !important;
    }
    
    .cooperation-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .water-features-section {
        padding: 60px 0 40px;
    }
    
    .water-features-main-header h2 {
        font-size: 2.5rem;
    }
    
    .elements-grid-scientific {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .water-journey-main {
        gap: 50px;
    }
    
    .journey-phase {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .phase-image {
        height: 300px;
    }
    
    .products-grid {
        gap: 30px;
        margin-top: 30px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .element-card {
        padding: 20px 15px;
    }
    
    .element-symbol-large {
        font-size: 2.5rem;
        min-width: 50px;
    }
    
    .silicate-card {
        padding: 25px 20px;
    }
    
    .silicate-formula {
        font-size: 3rem;
    }
    
    .elements-synergy {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
        gap: 20px;
    }
    
    .synergy-icon {
        font-size: 3rem;
    }
}

@media (max-width: 480px) {
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-title.small {
        font-size: 1.7rem;
    }
    
    .slide-subtitle {
        font-size: 1rem;
    }
    
    .slider-nav {
        display: none;
    }
    
    .hero-slider {
        min-height: 400px;
    }
    
    .phase-image {
        height: 200px;
    }
    
    .full-width-container {
        padding: 0 3%;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .content-section {
        padding: 50px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .water-journey-main {
        gap: 40px;
    }
    
    .phase-image {
        height: 200px;
    }
    
    .product-journey-end {
        margin: 30px 0 40px;
        padding: 40px 20px;
    }
}

/* 添加容器类，与HTML匹配 */
.container {
    width: 100%;
    padding: 0 5%;
    margin: 0 auto;
}

/* 当屏幕很大时，限制最大宽度但保持全屏感 */
@media (min-width: 1600px) {
    .container {
        padding: 0 10%;
    }
}

@media (min-width: 2000px) {
    .container {
        padding: 0 15%;
    }
}

/* 移动端菜单按钮样式 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.menu-line {
    width: 100%;
    height: 3px;
    background-color: var(--text-dark);
    transition: 0.3s;
    border-radius: 3px;
}

.menu-toggle.open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.open .menu-line:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.essence-columns {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-top: 30px;
}

.essence-col {
    flex: 1;
    padding: 25px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.essence-col:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.essence-col strong {
    display: block;
    font-size: 1.2em;
    color: #2c8c6e;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid rgba(44, 140, 110, 0.3);
}

.essence-col p {
    line-height: 1.8;
    font-size: 1.05em;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .essence-columns {
        flex-direction: column;
        gap: 20px;
    }
    
    .essence-col {
        padding: 20px;
    }
}

/* 1. 首先调整水质特点区块的底部间距 */
.water-features-section {
    padding: 70px 0 30px; /* 将底部50px减少到30px */
    background: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    position: relative;
    width: 100%;
}

/* 2. 调整连接语区块 - 大幅减少上下间距 */
.features-to-reports {
    text-align: center;
    margin-top: 30px; /* 从40px减少到30px */
    padding: 20px 0 10px; /* 从30px 0减少到20px 0 10px */
    position: relative;
}

.connector-line {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--brand-primary), transparent);
    margin: 0 auto 15px; /* 从20px减少到15px */
    width: 180px; /* 从200px减少到180px */
}

.connector-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px; /* 从10px减少到8px */
    color: var(--brand-primary);
    font-size: 1.2rem; /* 从1.3rem减少到1.2rem */
    font-weight: 500;
}

.connector-text .arrow {
    font-size: 1.8rem; /* 从2rem减少到1.8rem */
    animation: bounce 2s infinite;
}

/* 3. 调整检测报告区块的顶部间距 */
.testing-section {
    background: var(--white);
    width: 100%;
    padding-top: 50px !important; /* 单独设置顶部间距，覆盖content-section的80px */
}

/* 4. 调整检测结果区块的顶部间距 */
.testing-results {
    max-width: 800px;
    margin: 30px auto 20px; /* 从40px auto 20px减少到30px auto 20px */
    background: var(--background-light);
    padding: 30px 25px; /* 从35px 30px减少到30px 25px */
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--brand-primary-very-light);
}

/* 5. 进一步调整连接语动画，减少向下空间 */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); } /* 从10px减少到6px */
}

/* 6. 调整检测报告标题的底部间距 */
.testing-section .section-header {
    margin-bottom: 40px; /* 确保检测报告标题下方间距合适 */
}

/* 7. 针对移动端进一步优化 */
@media (max-width: 768px) {
    .water-features-section {
        padding: 60px 0 20px; /* 移动端进一步减少底部间距 */
    }
    
    .features-to-reports {
        margin-top: 20px;
        padding: 15px 0 5px;
    }
    
    .connector-line {
        width: 150px;
        margin-bottom: 12px;
    }
    
    .connector-text {
        font-size: 1.1rem;
        gap: 6px;
    }
    
    .connector-text .arrow {
        font-size: 1.5rem;
    }
    
    .testing-section {
        padding-top: 40px !important;
    }
    
    .testing-results {
        margin: 25px auto 15px;
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    .water-features-section {
        padding: 50px 0 15px;
    }
    
    .features-to-reports {
        margin-top: 15px;
        padding: 12px 0 5px;
    }
    
    .connector-line {
        width: 120px;
        margin-bottom: 10px;
    }
    
    .connector-text {
        font-size: 1rem;
        gap: 5px;
    }
    
    .connector-text .arrow {
        font-size: 1.3rem;
    }
    
    .testing-section {
        padding-top: 30px !important;
    }
    
    @keyframes bounce {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(4px); }
    }
}

/* 8. 如果需要，可以为连接语添加一个更紧凑的版本作为替代方案 */
/* 
.features-to-reports.compact {
    margin-top: 20px;
    padding: 15px 0 5px;
}

.features-to-reports.compact .connector-line {
    width: 150px;
    margin-bottom: 12px;
}

.features-to-reports.compact .connector-text {
    font-size: 1.1rem;
    gap: 6px;
}
*/

/* 9. 确保整个过渡区域不会因为其他样式而增加额外间距 */
.water-features-section + .testing-section {
    margin-top: -10px; /* 负边距可以进一步拉近两个区块 */
}

/* 在现有CSS基础上添加/修改以下图标相关样式 */

/* ============================================
   现代化线性图标样式
   ============================================ */

/* 1. 重新设计优势部分图标 */
.advantage-item i,
.advantage-item svg {
    font-size: 3.5rem;
    color: #1e6fb8; /* 品牌蓝色 */
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

/* 2. 为Font Awesome图标添加现代化风格 */
.advantage-item .fa-leaf,
.advantage-item .fa-tint,
.advantage-item .fa-shield-alt,
.advantage-item .fa-map-marker-alt,
.advantage-item .fa-phone,
.advantage-item .fa-envelope {
    /* 移除默认填充效果，改为线条风格 */
    -webkit-text-stroke: 1.5px #1e6fb8;
    color: transparent;
    text-shadow: 0 2px 8px rgba(30, 111, 184, 0.15);
}

/* 3. 特殊处理自定义SVG图标 */
.advantage-item svg {
    width: 52px;
    height: 52px;
    stroke: #1e6fb8;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    filter: drop-shadow(0 2px 4px rgba(30, 111, 184, 0.15));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 4. 悬停效果 */
.advantage-item:hover i,
.advantage-item:hover svg {
    transform: translateY(-5px);
    color: #155a93; /* 深蓝色 */
    stroke: #155a93;
    filter: drop-shadow(0 4px 12px rgba(30, 111, 184, 0.25));
}

.advantage-item:hover .fa-leaf,
.advantage-item:hover .fa-tint,
.advantage-item:hover .fa-shield-alt {
    -webkit-text-stroke: 1.5px #155a93;
    text-shadow: 0 4px 12px rgba(30, 111, 184, 0.25);
}

/* 5. 联系我们部分的图标 */
.contact-info i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
    -webkit-text-stroke: 1px #1e6fb8;
    color: transparent;
    transition: all 0.3s ease;
}

.contact-info p:hover i {
    -webkit-text-stroke: 1px #155a93;
    transform: scale(1.1);
}

/* 6. 页脚社交媒体图标 */
.social-links i {
    font-size: 1.5rem;
    -webkit-text-stroke: 1px #fff;
    color: transparent;
    transition: all 0.3s ease;
}

.social-links a:hover i {
    -webkit-text-stroke: 1px #155a93;
    transform: translateY(-3px);
    color: #155a93;
}

/* 7. 步骤图标样式更新 */
.step-icon {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1e6fb8, #155a93);
    color: white;
    border-radius: 50%;
    line-height: 60px;
    text-align: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(30, 111, 184, 0.25);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-icon::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transform: rotate(45deg);
    transition: transform 0.6s ease;
}

.journey-phase:hover .step-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(30, 111, 184, 0.35);
}

.journey-phase:hover .step-icon::after {
    transform: rotate(45deg) translateX(100%);
}

/* 8. 按钮图标增强 */
.btn i {
    margin-right: 8px;
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: translateX(3px);
}

/* 9. 产品卡片图标 */
.product-item::before {
    content: '💧'; /* 水滴符号 */
    position: absolute;
    top: -20px;
    right: 20px;
    font-size: 2rem;
    opacity: 0.1;
    transition: all 0.3s ease;
}

.product-item:hover::before {
    opacity: 0.2;
    transform: translateY(-5px);
}

/* 10. 新增：加载动画图标 */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.loading-icon {
    animation: float 2s ease-in-out infinite;
}

/* 11. 新增：脉冲动画效果 */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.05);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 0.7;
    }
}

.pulse-icon {
    animation: pulse 2s ease-in-out infinite;
}

/* 12. 移动端优化 */
@media (max-width: 768px) {
    .advantage-item i {
        font-size: 2.5rem;
    }
    
    .advantage-item svg {
        width: 40px;
        height: 40px;
    }
    
    .step-icon {
        width: 50px;
        height: 50px;
        line-height: 50px;
        font-size: 1rem;
    }
}

/* 13. 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .advantage-item i,
    .advantage-item svg {
        color: #4da8ff;
        stroke: #4da8ff;
    }
    
    .advantage-item .fa-leaf,
    .advantage-item .fa-tint,
    .advantage-item .fa-shield-alt {
        -webkit-text-stroke: 1.5px #4da8ff;
    }
    
    .step-icon {
        background: linear-gradient(135deg, #4da8ff, #2b6cb0);
    }
}

/* 14. 打印样式优化 */
@media print {
    .advantage-item i,
    .advantage-item svg,
    .step-icon,
    .contact-info i {
        color: #000 !important;
        stroke: #000 !important;
        -webkit-text-stroke: 1px #000 !important;
        filter: none !important;
    }
    
    .advantage-item svg {
        fill: none !important;
    }
}

/* 15. 新增：图标容器样式 */
.icon-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(30, 111, 184, 0.1), rgba(30, 111, 184, 0.05));
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.icon-container:hover {
    background: linear-gradient(135deg, rgba(30, 111, 184, 0.15), rgba(30, 111, 184, 0.1));
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(30, 111, 184, 0.15);
}

/* 16. 新增：应用图标容器到优势项 */
.advantage-item > i,
.advantage-item > svg {
    position: relative;
    z-index: 2;
}

.advantage-item {
    position: relative;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 70px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(30, 111, 184, 0.1), rgba(30, 111, 184, 0.05));
    opacity: 0;
    transition: all 0.3s ease;
}

.advantage-item:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

/* ============================================
   现代化线性图标样式 - 强制覆盖版本
   ============================================ */

/* 1. 强制重置优势部分的图标样式 */
#advantages .advantage-item i.fas,
#advantages .advantage-item svg,
#advantages .advantage-item i.fa-solid {
    font-size: 3.5rem !important;
    color: transparent !important;
    -webkit-text-stroke: 1.5px #1e6fb8 !important;
    text-shadow: 0 2px 8px rgba(30, 111, 184, 0.15) !important;
    margin-bottom: 20px !important;
    display: inline-block !important;
    transition: all 0.3s ease !important;
}

/* 2. 特定的Font Awesome图标样式 */
#advantages .advantage-item i.fa-leaf,
#advantages .advantage-item i.fa-tint,
#advantages .advantage-item i.fa-shield-alt {
    -webkit-text-stroke: 1.5px #1e6fb8 !important;
    color: transparent !important;
    text-shadow: 0 2px 8px rgba(30, 111, 184, 0.15) !important;
}

/* 3. SVG图标样式 */
#advantages .advantage-item svg {
    width: 52px !important;
    height: 52px !important;
    stroke: #1e6fb8 !important;
    stroke-width: 2.5 !important;
    stroke-linecap: round !important;
    stroke-linejoin: round !important;
    fill: none !important;
    filter: drop-shadow(0 2px 4px rgba(30, 111, 184, 0.15)) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* 4. 悬停效果 - 优势部分 */
#advantages .advantage-item:hover i,
#advantages .advantage-item:hover svg {
    transform: translateY(-5px) !important;
    -webkit-text-stroke: 1.5px #155a93 !important;
    stroke: #155a93 !important;
    filter: drop-shadow(0 4px 12px rgba(30, 111, 184, 0.25)) !important;
}

/* 5. 联系我们部分的图标 */
#contact .contact-info i.fas {
    margin-right: 10px !important;
    width: 20px !important;
    text-align: center !important;
    -webkit-text-stroke: 1px #1e6fb8 !important;
    color: transparent !important;
    transition: all 0.3s ease !important;
}

#contact .contact-info p:hover i {
    -webkit-text-stroke: 1px #155a93 !important;
    transform: scale(1.1) !important;
}

/* 6. 页脚社交媒体图标 */
#main-footer .social-links i.fab {
    font-size: 1.5rem !important;
    -webkit-text-stroke: 1px #fff !important;
    color: transparent !important;
    transition: all 0.3s ease !important;
}

#main-footer .social-links a:hover i {
    -webkit-text-stroke: 1px #155a93 !important;
    transform: translateY(-3px) !important;
    color: #155a93 !important;
}

/* 7. 步骤图标样式更新 */
#our-water .step-icon {
    display: inline-block !important;
    width: 60px !important;
    height: 60px !important;
    background: linear-gradient(135deg, #1e6fb8, #155a93) !important;
    color: white !important;
    border-radius: 50% !important;
    line-height: 60px !important;
    text-align: center !important;
    font-weight: bold !important;
    font-size: 1.2rem !important;
    margin-bottom: 15px !important;
    box-shadow: 0 4px 15px rgba(30, 111, 184, 0.25) !important;
    position: relative !important;
    overflow: hidden !important;
    transition: all 0.3s ease !important;
}

#our-water .step-icon::after {
    content: '' !important;
    position: absolute !important;
    top: -50% !important;
    left: -50% !important;
    width: 200% !important;
    height: 200% !important;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    ) !important;
    transform: rotate(45deg) !important;
    transition: transform 0.6s ease !important;
}

#our-water .journey-phase:hover .step-icon {
    transform: scale(1.1) !important;
    box-shadow: 0 6px 20px rgba(30, 111, 184, 0.35) !important;
}

#our-water .journey-phase:hover .step-icon::after {
    transform: rotate(45deg) translateX(100%) !important;
}

/* 8. 为图标添加动画效果 */
@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes iconPulse {
    0% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.7; }
}

/* 为优势图标添加初始动画 */
#advantages .advantage-item i,
#advantages .advantage-item svg {
    animation: iconFloat 3s ease-in-out infinite;
    animation-delay: calc(var(--item-index, 0) * 0.2s);
}

/* 9. 响应式调整 */
@media (max-width: 768px) {
    #advantages .advantage-item i.fas,
    #advantages .advantage-item i.fa-solid {
        font-size: 2.5rem !important;
        -webkit-text-stroke: 1px #1e6fb8 !important;
    }
    
    #advantages .advantage-item svg {
        width: 40px !important;
        height: 40px !important;
        stroke-width: 2px !important;
    }
    
    #our-water .step-icon {
        width: 50px !important;
        height: 50px !important;
        line-height: 50px !important;
        font-size: 1rem !important;
    }
}

/* 10. 为每个优势项设置不同的动画延迟 */
#advantages .advantage-item:nth-child(1) { --item-index: 1; }
#advantages .advantage-item:nth-child(2) { --item-index: 2; }
#advantages .advantage-item:nth-child(3) { --item-index: 3; }
#advantages .advantage-item:nth-child(4) { --item-index: 4; }

/* 11. 打印样式 */
@media print {
    #advantages .advantage-item i,
    #advantages .advantage-item svg,
    #our-water .step-icon,
    #contact .contact-info i {
        -webkit-text-stroke: 1px #000 !important;
        color: black !important;
        stroke: black !important;
        filter: none !important;
        text-shadow: none !important;
    }
    
    #our-water .step-icon {
        background: #000 !important;
        color: white !important;
    }
}

/* 公司介绍图片样式优化 */
.about-images {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.about-image-container {
    position: relative;
    width: 100%;
    height: 280px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    cursor: pointer;
    transition: all 0.35s ease;
}

.about-image-container:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.about-image-container:hover .image-overlay {
    opacity: 1;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about-image-container:hover .about-image {
    transform: scale(1.05);
}

/* 图片悬停遮罩层 */
.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, 
        rgba(0, 0, 0, 0.7) 0%, 
        rgba(0, 0, 0, 0.5) 50%, 
        transparent 100%);
    padding: 20px 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-text {
    color: white;
    font-size: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.view-text::before {
    content: "🔍";
    font-size: 1.1rem;
}

/* 公司介绍文字部分调整 */
.about-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 50px;
    align-items: start;
    width: 100%;
}

.about-text h3 {
    color: var(--brand-primary);
    font-size: 2.2rem;
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--brand-primary);
}

.about-text p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 25px;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-images {
        order: -1;
    }
}

@media (max-width: 768px) {
    .about-images {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .about-image-container {
        height: 250px;
    }
    
    .about-text h3 {
        font-size: 1.8rem;
    }
    
    .about-text p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .about-image-container {
        height: 200px;
    }
    
    .view-text {
        font-size: 0.9rem;
    }
}

/* 阶段图片轮播样式 */
.phase-slider {
    position: relative;
    width: 100%;
    height: 450px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background-color: #000;
}

.phase-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    width: 100%;
    height: 100%;
}

.phase-slide.active {
    opacity: 1;
}

.phase-slide .phase-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.03);
    transition: transform 1.5s ease;
}

.phase-slide.active .phase-img {
    transform: scale(1.05);
}

.phase-slide:hover .phase-img {
    transform: scale(1.08);
}

/* 图片说明文字 */
.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 20px 25px 15px;
    font-size: 1.1rem;
    font-weight: 500;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.phase-slide.active .slide-caption {
    opacity: 1;
    transform: translateY(0);
}

/* 轮播指示器 */
.phase-slider-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.phase-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.phase-indicator.active {
    background-color: rgba(255, 255, 255, 0.9);
    transform: scale(1.2);
}

.phase-indicator:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

/* 轮播箭头 */
.phase-slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.4);
    border: none;
    color: white;
    font-size: 2.2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

.phase-slider-nav:hover {
    background: rgba(0, 0, 0, 0.7);
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.phase-slider-nav.prev {
    left: 20px;
}

.phase-slider-nav.next {
    right: 20px;
}

/* 移动端调整 */
@media (max-width: 1400px) {
    .phase-slider {
        height: 350px;
    }
}

@media (max-width: 768px) {
    .phase-slider {
        height: 300px;
    }
    
    .phase-slider-nav {
        display: none; /* 移动端隐藏箭头，简化操作 */
    }
    
    .slide-caption {
        font-size: 1rem;
        padding: 15px 20px 10px;
    }
    
    .phase-slider-indicators {
        bottom: 15px;
    }
}

@media (max-width: 480px) {
    .phase-slider {
        height: 200px;
    }
    
    .slide-caption {
        font-size: 0.9rem;
        padding: 10px 15px 8px;
    }
    
    .phase-indicator {
        width: 10px;
        height: 10px;
        border-width: 1px;
    }
}