/* ========== 全局重置与公用样式（参照 patent.css） ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: #f5f7fa;
    color: #1e2f3b;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== Hero 区域（含背景图） ========== */
.hero-tech {
    background: linear-gradient(135deg, rgba(27,155,151,0.85), rgba(14,106,103,0.85)), url('/upload/202605/1777992624993684.png');
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat, no-repeat;
    color: white;
    padding: 60px 20px;
    text-align: center;
    border-radius: 0 0 24px 24px;
    margin-bottom: 40px;
}

.hero-tech h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.core-advantages {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.adv-card {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    border-radius: 48px;
    padding: 10px 28px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 1px solid rgba(255,255,255,0.3);
    transition: transform 0.2s;
}

.adv-card:hover {
    transform: translateY(-3px);
    background: rgba(255,255,255,0.25);
}

/* ========== 专利/认证通用卡片布局 ========== */
.patent-category {
    background: white;
    border-radius: 28px;
    margin: 40px auto;
    padding: 30px 24px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    max-width: 1200px;
}

.patent-title h2 {
    font-size: 1.8rem;
    font-weight: 700;
    border-left: 6px solid #1b9b97;
    padding-left: 20px;
    margin-bottom: 28px;
    color: #1e2f3b;
    display: inline-block;
}

/* 适用标准特殊标注 */
.standard-badge {
    display: inline-block;
    background: #eef3f2;
    color: #1b9b97;
    font-size: 0.85rem;
    padding: 4px 12px;
    border-radius: 30px;
    margin-left: 16px;
    vertical-align: middle;
}

.patent-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.patent-left {
    flex: 0 0 140px;
    text-align: center;
}

.patent-cover img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 6px 14px rgba(0,0,0,0.1);
}

.patent-right {
    flex: 1;
    min-width: 240px;
}

/* 专利/认证列表网格 */
.patent-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 20px;
}

.patent-item {
    text-align: center;
    background: #f9fbfd;
    padding: 12px 8px;
    border-radius: 20px;
    transition: all 0.2s;
    cursor: default;
}

.patent-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.08);
}

.patent-img img {
    width: 100%;
    max-width: 90px;
    height: auto;
    border-radius: 12px;
    margin-bottom: 10px;
}

.patent-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: #2c4b5c;
    line-height: 1.3;
}

/* 更多按钮（预留） */
.patent-more-btn {
    margin-top: 20px;
}

.patent-more-btn a {
    display: inline-block;
    background: #eef3f2;
    color: #1b9b97;
    padding: 8px 20px;
    border-radius: 40px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: 0.2s;
}

.patent-more-btn a:hover {
    background: #1b9b97;
    color: white;
}

.more-grid {
    display: none;
    margin-top: 20px;
}
.more-grid.show {
    display: grid;
}

/* ========== 获奖产品列表样式 ========== */
.award-product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}
.award-product-item {
    background: #f0f5f4;
    border-radius: 16px;
    padding: 12px 20px;
    flex: 1 1 200px;
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}
.award-model {
    font-weight: 700;
    color: #1b9b97;
    font-size: 1rem;
}
.award-desc {
    font-size: 0.9rem;
    color: #2c4b5c;
}
.award-badge {
    background: #ffd966;
    color: #7a5c00;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 30px;
    margin-left: 8px;
    white-space: nowrap;
}
.award-detail {
    background: #f8fafc;
    padding: 16px;
    border-radius: 16px;
    margin-top: 8px;
}
.award-link {
    color: #1b9b97;
    text-decoration: none;
    font-weight: 500;
}
.award-link:hover {
    text-decoration: underline;
}

/* ========== 检测报告网格（4列响应式） ========== */
.report-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}
.report-item {
    text-align: center;
    background: #f9fbfd;
    padding: 12px 8px;
    border-radius: 20px;
}
.report-img img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 8px;
}
.report-name {
    font-weight: 500;
    font-size: 0.85rem;
}

/* ========== 适用标准列表 ========== */
.standard-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.standard-list li {
    margin-bottom: 16px;
    font-size: 1rem;
    padding-left: 24px;
    position: relative;
}
.standard-list li::before {
    content: "✔";
    color: #1b9b97;
    position: absolute;
    left: 0;
}
.standard-download {
    margin-top: 24px;
}

/* ========== 检测机构列表 ========== */
.lab-list {
    list-style: none;
    padding: 0;
}
.lab-list li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}
.lab-list li::before {
    content: "•";
    color: #1b9b97;
    font-weight: bold;
    position: absolute;
    left: 0;
}
.lab-desc {
    margin-top: 16px;
    color: #2d4a5e;
    font-size: 0.95rem;
}

/* ========== 品质控制图标网格 ========== */
.qc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}
.qc-item {
    text-align: center;
}
.qc-icon img {
    max-width: 60px;
    height: auto;
    margin-bottom: 8px;
}
.qc-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: #2c4b5c;
}

/* 响应式调整品质控制网格 */
@media (max-width: 768px) {
    .qc-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

/* ========== 产品故事双栏布局 ========== */
.product-story {
    max-width: 1200px;
    margin: 50px auto;
    background: white;
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}
.story-header {
    text-align: center;
    padding: 40px 20px 20px;
}
.story-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #1e2f3b;
}
.story-header p {
    color: #5f7f8e;
    font-size: 1rem;
}
.story-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    padding: 20px 40px 40px;
}
.story-images {
    flex: 1;
    text-align: center;
}
.story-images img {
    max-width: 240px;
    border-radius: 20px;
}
.img-caption {
    font-size: 0.85rem;
    color: #5f7f8e;
    margin-top: 10px;
}
.story-text {
    flex: 2;
}
.story-text h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #1b9b97;
}
.story-text p {
    margin-bottom: 15px;
    line-height: 1.6;
}

/* ========== FAQ 样式（与 patent.css 一致） ========== */
.gibo-faq {
    max-width: 1000px;
    margin: 40px auto;
    background: white;
    border-radius: 28px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}
.gibo-faq h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    text-align: center;
    color: #1e2f3b;
}
.faq-item {
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 8px;
}
.faq-question {
    font-weight: 600;
    font-size: 1.05rem;
    padding: 18px 12px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}
.faq-question:hover {
    background: #f8fafc;
}
.faq-icon {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1b9b97;
}
.faq-answer {
    padding: 0 12px 20px 32px;
    color: #2d4a5e;
    line-height: 1.6;
    display: none;
}

/* ========== CTA 表单 ========== */
.cta-download {
    max-width: 1000px;
    margin: 50px auto;
    background: linear-gradient(135deg, #f0f9f9, #ffffff);
    border-radius: 32px;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    padding: 40px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.08);
}
.cta-text {
    flex: 1;
}
.cta-text h3 {
    font-size: 1.6rem;
    margin-bottom: 16px;
    color: #1e2f3b;
}
.cta-text p {
    margin-bottom: 12px;
    color: #2f5a6b;
}
.cta-form {
    flex: 1;
}
.form-group {
    margin-bottom: 16px;
}
.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #cbd5e0;
    border-radius: 48px;
    font-size: 0.95rem;
}
.form-group input:focus {
    outline: none;
    border-color: #1b9b97;
    box-shadow: 0 0 0 2px rgba(27,155,151,0.2);
}
.form-error {
    font-size: 0.7rem;
    color: #e53e3e;
    display: none;
}
.btn-primary {
    display: inline-block;
    background: #1b9b97;
    color: white;
    padding: 12px 28px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    background: #0e7a77;
    transform: translateY(-2px);
}

/* 悬浮按钮 */
.float-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}
.float-btn {
    background: #1b9b97;
    color: white;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: 0.2s;
}
.float-btn:hover {
    background: #0e7a77;
    transform: scale(1.05);
}

/* ========== 响应式适配 ========== */
@media (max-width: 768px) {
    .hero-tech h1 {
        font-size: 1.8rem;
    }
    .adv-card {
        padding: 6px 18px;
        font-size: 0.9rem;
    }
    .patent-title h2 {
        font-size: 1.5rem;
    }
    .patent-content {
        flex-direction: column;
    }
    .patent-left {
        flex: auto;
        text-align: center;
    }
    .patent-list-grid,
    .report-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .core-advantages {
        gap: 10px;
    }
    .cta-download {
        flex-direction: column;
        padding: 24px;
    }
    .float-buttons {
        bottom: 80px;
        right: 12px;
    }
    .story-container {
        flex-direction: column;
        padding: 20px;
    }
    .award-product-item {
        flex: 1 1 100%;
    }
}