/* ========== 行业方案详情页专用样式 ========== */

/* 详情页导航栏 */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent; transition: var(--transition); padding: 0 2rem; }
.navbar.scrolled { border-color: #e0e0e0; box-shadow: 0 2px 12px rgba(13,124,59,0.06); }
.navbar-inner { max-width: 1350px; margin: 0 auto; display: flex; align-items: center;
    justify-content: space-between; height: 70px; }
.navbar-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-logo { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, #0d7c3b 0%, #1db954 100%);
    display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.brand-logo svg { width: 22px; height: 22px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 1rem; color: var(--primary); font-weight: 700; white-space: nowrap; }
.brand-text span { font-size: 0.6rem; color: #9aa5b1; letter-spacing: 1px; }
.navbar-nav { display: flex; gap: 1.8rem; align-items: center; }
.navbar-nav a { text-decoration: none; color: var(--text); font-size: 0.95rem; font-weight: 500;
    transition: color 0.2s; position: relative; }
.navbar-nav a:hover { color: var(--primary); }
.navbar-nav a.active { color: var(--primary); font-weight: 600; }
.navbar-nav a.active::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 100%; height: 2px;
    background: var(--primary); }
.navbar-right { display: flex; align-items: center; gap: 16px; }
.navbar-tel { background: linear-gradient(135deg, #0d7c3b 0%, #1db954 50%, #0d8a3f 100%);
    color: #fff; padding: 10px 20px; border-radius: 50px; font-weight: 600; font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(13,124,59,0.35); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none;
    cursor: pointer; padding: 8px; }
.menu-toggle span { width: 26px; height: 2px; background: var(--text); transition: var(--transition); border-radius: 2px; }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 详情页页脚 */
.footer { background: #12162a; color: #c2c5d0; padding: 50px 2rem 30px; position: relative; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, #1db954 50%, var(--primary) 100%); }
.footer-inner { max-width: 1350px; margin: 0 auto; display: grid;
    grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-logo { width: 42px; height: 42px; background: rgba(255,255,255,0.1); color: #81c784; }
.footer-brand strong { color: #fff; font-size: 1rem; display: block; margin-bottom: 8px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; }
.footer-nav a { color: #aaa; text-decoration: none; font-size: 0.88rem; transition: color 0.2s;
    display: block; margin-bottom: 8px; }
.footer-nav a:hover { color: #81c784; }
.footer-contact p { font-size: 0.88rem; line-height: 1.9; }
.footer-bottom { max-width: 1350px; margin: 0 auto; padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 0.85rem; color: #888; }

@media (max-width: 1024px) {
    .navbar-nav { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0;
        background: #fff; padding: 20px 2rem; box-shadow: 0 10px 30px rgba(0,0,0,0.1); gap: 1.2rem; }
    .navbar-nav.show { display: flex; }
    .menu-toggle { display: flex; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .navbar-tel { display: none; }
    .footer-inner { grid-template-columns: 1fr; gap: 30px; }
}

/* CTA 按钮 */
.btn-white {
    background: #fff; color: var(--primary); padding: 14px 36px; border-radius: 50px;
    font-size: 1rem; font-weight: 600; text-decoration: none; display: inline-flex;
    align-items: center; justify-content: center; gap: 8px; transition: var(--transition);
    cursor: pointer; border: none; line-height: 1;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.18); }
.btn-outline-light {
    background: transparent; color: #fff; padding: 14px 36px; border-radius: 50px;
    font-size: 1rem; font-weight: 600; text-decoration: none; display: inline-flex;
    align-items: center; justify-content: center; gap: 8px; transition: var(--transition);
    cursor: pointer; border: 2px solid rgba(255,255,255,0.85); line-height: 1;
}
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: #fff; }

/* 页面 Hero */
.page-hero {
    position: relative;
    min-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 2rem 90px;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(170deg, rgba(0,12,6,0.72) 0%, rgba(0,20,8,0.35) 50%, rgba(0,8,3,0.72) 100%);
    z-index: 0;
}
.page-hero::after {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 30%, rgba(33,150,243,0.10) 0%, transparent 55%),
                radial-gradient(ellipse at 30% 70%, rgba(13,124,59,0.18) 0%, transparent 60%);
    z-index: 0;
}
.page-hero-content {
    position: relative; z-index: 1;
    text-align: center; max-width: 900px;
}
.page-hero .crumb {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.14);
    color: rgba(255,255,255,0.92);
    padding: 8px 20px; border-radius: 50px;
    font-size: 0.85rem; margin-bottom: 1.4rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.22);
}
.page-hero .crumb a { color: rgba(255,255,255,0.75); text-decoration: none; }
.page-hero .crumb a:hover { color: #fff; }
.page-hero h1 {
    font-size: 2.8rem; font-weight: 800; color: #fff;
    margin-bottom: 0.6rem; letter-spacing: -0.5px;
    text-shadow: 0 2px 16px rgba(0,0,0,0.4);
}
.page-hero h1 .green { color: #a5d6a7; }
.page-hero .hero-sub {
    font-size: 1.1rem; color: rgba(255,255,255,0.9);
    max-width: 760px; margin: 0 auto 1.8rem; line-height: 1.8;
    text-shadow: 0 1px 6px rgba(0,0,0,0.35);
}
.page-hero .hero-tags {
    display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}
.page-hero .hero-tags span {
    background: rgba(255,255,255,0.16);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff; padding: 7px 18px; border-radius: 50px;
    font-size: 0.88rem; backdrop-filter: blur(8px);
}
.page-hero-shape {
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 60px; background: #fff; z-index: 1;
    clip-path: ellipse(60% 100% at 50% 100%);
}

/* 内容区块 */
.page-section { padding: 45px 2rem; }
.page-section.gray { background: linear-gradient(180deg, #f5f7fa 0%, #f0f4f2 100%); }
.page-container { max-width: 1350px; margin: 0 auto; }

/* 区块标题（左对齐） */
.sec-head { margin-bottom: 40px; }
.sec-head.center { text-align: center; }
.sec-head .sec-tag {
    display: inline-block; background: var(--primary-light);
    color: var(--primary); padding: 6px 18px; border-radius: 50px;
    font-weight: 600; font-size: 0.85rem; margin-bottom: 0.9rem;
    letter-spacing: 2px;
}
.sec-head h2 {
    font-size: 2rem; font-weight: 700; color: #1a1a2e;
    margin-bottom: 0.6rem; letter-spacing: -0.3px;
}
.sec-head h2 span { color: var(--primary); }
.sec-head p { color: var(--text-light); font-size: 1rem; max-width: 780px; line-height: 1.8; }
.sec-head.center p { margin: 0 auto; }

/* 富文本内容 */
.prose { color: #4b5563; line-height: 1.9; font-size: 0.98rem; }
.prose p { margin-bottom: 1rem; }
.prose strong { color: #1f2937; }
.prose ul { padding-left: 1.3rem; margin-bottom: 1rem; }
.prose li { margin-bottom: 0.5rem; }

/* 两栏介绍 */
.two-col {
    display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px;
    align-items: center;
}
.two-col .tc-img {
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow-lg); height: 100%; min-height: 300px;
}
.two-col .tc-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 数据统计条 */
.stat-strip {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.stat-box {
    background: #fff; border-radius: var(--radius);
    padding: 28px 20px; text-align: center;
    box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    transition: var(--transition);
}
.stat-box:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #d4e8d9; }
.stat-box .num { font-size: 2.1rem; font-weight: 800; color: var(--primary); }
.stat-box .label { font-size: 0.9rem; color: var(--text-light); margin-top: 4px; }
.stat-box .unit { font-size: 1rem; color: var(--primary); font-weight: 700; }

/* 污染源卡片 */
.source-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.source-card {
    background: #fff; border-radius: var(--radius); padding: 28px 24px;
    box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    transition: var(--transition); position: relative; overflow: hidden;
}
.source-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, #1db954 100%);
}
.source-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.source-card .src-icon { font-size: 2rem; margin-bottom: 12px; display: block; }
.source-card h4 { font-size: 1.05rem; color: #1a1a2e; margin-bottom: 8px; }
.source-card p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* 技术方案卡片（两栏大卡） */
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.tech-card {
    background: #fff; border-radius: var(--radius); padding: 34px 30px;
    box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    transition: var(--transition); position: relative; overflow: hidden;
}
.tech-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, #1db954 100%);
    transform: scaleX(0); transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
    transform-origin: left;
}
.tech-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); border-color: #d4e8d9; }
.tech-card:hover::before { transform: scaleX(1); }
.tech-card .tech-num {
    position: absolute; top: 22px; right: 26px;
    font-size: 2.6rem; font-weight: 800; color: rgba(13,124,59,0.1);
    line-height: 1;
}
.tech-card h3 { font-size: 1.2rem; color: #1a1a2e; margin-bottom: 12px; padding-right: 40px; }
.tech-card h3 .t-icon { margin-right: 8px; }
.tech-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.8; margin-bottom: 14px; }
.tech-card .tech-flow {
    background: #f7faf7; border-radius: var(--radius-sm);
    padding: 14px 16px; font-size: 0.88rem; color: #2d7a3e;
    font-weight: 600; line-height: 1.9;
}
.tech-card .tech-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.tech-card .tech-tags span {
    background: #e8f5eb; color: #2d7a3e; padding: 4px 12px;
    border-radius: 20px; font-size: 0.78rem; font-weight: 500;
}
.tech-card.wide { grid-column: 1 / -1; }

/* 工艺流程图 */
.flow-steps { display: flex; align-items: stretch; gap: 0; flex-wrap: wrap; justify-content: center; }
.flow-step {
    background: #fff; border-radius: var(--radius); padding: 26px 20px;
    text-align: center; box-shadow: var(--shadow-sm);
    border: 1px solid #eef2f0; flex: 1; min-width: 160px; max-width: 200px;
    transition: var(--transition); position: relative;
}
.flow-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #d4e8d9; }
.flow-step .fs-num {
    width: 40px; height: 40px; border-radius: 50%; margin: 0 auto 12px;
    background: linear-gradient(135deg, #0d7c3b 0%, #1db954 100%);
    color: #fff; font-weight: 700; display: flex; align-items: center;
    justify-content: center; font-size: 1rem;
    box-shadow: 0 4px 12px rgba(13,124,59,0.3);
}
.flow-step h4 { font-size: 0.95rem; color: #1a1a2e; margin-bottom: 6px; }
.flow-step p { font-size: 0.8rem; color: var(--text-light); line-height: 1.6; }
.flow-arrow {
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: var(--primary); padding: 0 8px; font-weight: 700;
}

/* 方案优势 */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.adv-card {
    background: #fff; border-radius: var(--radius); padding: 28px 24px;
    box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    transition: var(--transition); display: flex; gap: 16px;
}
.adv-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); border-color: #d4e8d9; }
.adv-card .adv-icon {
    width: 52px; height: 52px; border-radius: 12px; flex-shrink: 0;
    background: var(--primary-light); display: flex; align-items: center;
    justify-content: center; font-size: 1.5rem;
}
.adv-card h4 { font-size: 1rem; color: #1a1a2e; margin-bottom: 6px; }
.adv-card p { font-size: 0.86rem; color: var(--text-light); line-height: 1.7; }

/* 排放标准表 */
.std-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid #eef2f0; }
.std-table { width: 100%; border-collapse: collapse; background: #fff; min-width: 640px; }
.std-table th {
    background: linear-gradient(135deg, #0d7c3b 0%, #129c47 100%);
    color: #fff; padding: 14px 18px; font-size: 0.9rem; text-align: left;
    font-weight: 600; white-space: nowrap;
}
.std-table td {
    padding: 13px 18px; font-size: 0.9rem; color: #374151;
    border-bottom: 1px solid #eef2f0;
}
.std-table tr:nth-child(even) td { background: #f9fbf9; }
.std-table tr:hover td { background: var(--primary-light); }
.std-table td .ok { color: var(--primary); font-weight: 700; }

/* 案例卡片 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card2 {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    transition: var(--transition);
}
.case-card2:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); border-color: #d4e8d9; }
.case-card2 .cc-img { height: 180px; overflow: hidden; }
.case-card2 .cc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card2:hover .cc-img img { transform: scale(1.06); }
.case-card2 .cc-body { padding: 22px; }
.case-card2 .cc-body .cc-client { font-size: 0.82rem; color: var(--primary); font-weight: 600; margin-bottom: 6px; }
.case-card2 .cc-body h4 { font-size: 1.05rem; color: #1a1a2e; margin-bottom: 8px; }
.case-card2 .cc-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }

/* 底部 CTA */
.cta-banner {
    background: linear-gradient(135deg, #0d7c3b 0%, #129c47 60%, #0d8a3f 100%);
    border-radius: 20px; padding: 48px 40px; text-align: center;
    position: relative; overflow: hidden;
    box-shadow: 0 20px 50px rgba(13,124,59,0.25);
}
.cta-banner::before {
    content: '';
    position: absolute; top: -60px; right: -60px; width: 220px; height: 220px;
    background: rgba(255,255,255,0.08); border-radius: 50%;
}
.cta-banner::after {
    content: '';
    position: absolute; bottom: -80px; left: -40px; width: 260px; height: 260px;
    background: rgba(255,255,255,0.06); border-radius: 50%;
}
.cta-banner h3 { font-size: 1.8rem; color: #fff; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-banner p { color: rgba(255,255,255,0.92); font-size: 1rem; margin-bottom: 26px; position: relative; z-index: 1; }
.cta-banner .cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* 其他行业推荐 */
.rel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.rel-card {
    background: #fff; border-radius: var(--radius); padding: 24px 18px;
    text-align: center; box-shadow: var(--shadow-sm); border: 1px solid #eef2f0;
    text-decoration: none; transition: var(--transition); display: block;
}
.rel-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); border-color: var(--primary); }
.rel-card .rel-icon { font-size: 2rem; display: block; margin-bottom: 10px; }
.rel-card h5 { font-size: 0.95rem; color: #1a1a2e; margin-bottom: 6px; }
.rel-card span { font-size: 0.78rem; color: var(--primary); font-weight: 600; }

/* 响应式 */
@media (max-width: 1024px) {
    .source-grid { grid-template-columns: repeat(2, 1fr); }
    .adv-grid { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .rel-grid { grid-template-columns: repeat(3, 1fr); }
    .stat-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .page-hero { min-height: 320px; padding: 120px 1.2rem 70px; }
    .page-hero h1 { font-size: 1.9rem; }
    .page-section { padding: 50px 1.2rem; }
    .sec-head h2 { font-size: 1.5rem; }
    .two-col { grid-template-columns: 1fr; gap: 28px; }
    .tech-grid { grid-template-columns: 1fr; }
    .source-grid, .adv-grid, .case-grid { grid-template-columns: 1fr; }
    .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .flow-arrow { transform: rotate(90deg); padding: 6px 0; }
    .rel-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-banner { padding: 36px 24px; }
}
@media (max-width: 480px) {
    .stat-strip { grid-template-columns: 1fr; }
    .source-grid, .tech-grid { grid-template-columns: 1fr; }
    .rel-grid { grid-template-columns: 1fr; }
}