/* ========== 基础变量 ========== */
:root{
    --qh-green-1:#00a86b;
    --qh-green-2:#00c980;
    --qh-green-3:#007a4d;
    --qh-green-light:#e6f9f0;
    --qh-green-bg:#f0faf5;
    --qh-dark:#0f2e20;
    --qh-dark-2:#1a4d34;
    --qh-text:#222;
    --qh-text-gray:#666;
    --qh-text-light:#999;
    --qh-border:#e5ebe8;
    --qh-white:#fff;
    --qh-shadow:0 8px 30px rgba(0,168,107,0.1);
    --qh-shadow-hover:0 16px 48px rgba(0,168,107,0.18);
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:"Microsoft YaHei","PingFang SC",sans-serif;
}

body{
    color:var(--qh-text);
    background:var(--qh-white);
    line-height:1.6;
    overflow-x:hidden;
}

a{
    text-decoration:none;
    color:inherit;
    transition:all 0.3s;
}

ul{
    list-style:none;
}

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

.qh-container{
    max-width:1240px;
    margin:0 auto;
    padding:0 24px;
}

/* ========== 立体流光按钮 ========== */
.qh-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:14px 36px;
    border-radius:50px;
    font-size:15px;
    font-weight:500;
    transition:all 0.35s cubic-bezier(0.4,0,0.2,1);
    position:relative;
    overflow:hidden;
    border:none;
    cursor:pointer;
}

.qh-btn::before{
    content:"";
    position:absolute;
    left:-100%;
    top:0;
    width:100%;
    height:100%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,0.25),transparent);
    transition:left 0.6s ease;
}

.qh-btn:hover::before{
    left:100%;
}

.qh-btn-primary{
    background:linear-gradient(135deg,var(--qh-green-3),var(--qh-green-1),var(--qh-green-2));
    color:#fff;
    box-shadow:0 6px 20px rgba(0,168,107,0.35);
}

.qh-btn-primary:hover{
    transform:translateY(-3px);
    box-shadow:var(--qh-shadow-hover);
    filter:brightness(1.08);
}

.qh-btn-arrow{
    transition:transform 0.3s;
}

.qh-btn-primary:hover .qh-btn-arrow{
    transform:translateX(4px);
}

.qh-btn-ghost{
    background:transparent;
    color:#fff;
    border:2px solid rgba(255,255,255,0.5);
}

.qh-btn-ghost:hover{
    background:#fff;
    color:var(--qh-green-1);
    transform:translateY(-3px);
}

.qh-btn-sm{
    padding:9px 22px;
    font-size:14px;
}

.qh-btn-line-green{
    color:var(--qh-green-1);
    font-weight:500;
    border-bottom:2px solid transparent;
    padding-bottom:4px;
}

.qh-btn-line-green:hover{
    border-color:var(--qh-green-1);
}

.qh-btn-white{
    background:#fff;
    color:var(--qh-green-1);
    font-weight:500;
}

.qh-btn-white:hover{
    transform:translateY(-3px);
    box-shadow:0 8px 24px rgba(0,0,0,0.15);
}

/* ========== 顶部导航 ========== */
.qh-header{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    background:rgba(255,255,255,0.85);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    z-index:999;
    transition:all 0.3s;
    border-bottom:1px solid rgba(0,201,128,0.08);
}

.qh-header.scrolled{
    background:rgba(255,255,255,0.96);
    box-shadow:0 4px 24px rgba(0,0,0,0.06);
}

.qh-header .qh-container{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
}

.qh-logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:700;
    color:var(--qh-dark);
}

.qh-logo-icon{
    width:38px;
    height:38px;
    background:linear-gradient(135deg,var(--qh-green-1),var(--qh-green-2));
    border-radius:10px;
    display:flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-size:18px;
    box-shadow:0 4px 14px rgba(0,201,128,0.35);
}

.qh-nav{
    display:flex;
    gap:36px;
}

.qh-nav li a{
    color:var(--qh-text-gray);
    font-size:15px;
    font-weight:500;
    position:relative;
    padding:4px 0;
}

.qh-nav li a:hover,
.qh-nav li a.active{
    color:var(--qh-green-1);
}

.qh-nav li a::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:0;
    width:0;
    height:2px;
    background:linear-gradient(90deg,var(--qh-green-1),var(--qh-green-2));
    transition:all 0.3s;
    transform:translateX(-50%);
    border-radius:2px;
}

.qh-nav li a:hover::after,
.qh-nav li a.active::after{
    width:100%;
}

.qh-header-btn{
    flex-shrink:0;
}

.qh-menu-btn{
    display:none;
    flex-direction:column;
    gap:5px;
    cursor:pointer;
    padding:4px;
    z-index:1001;
}

.qh-menu-btn span{
    width:26px;
    height:2px;
    background:var(--qh-dark);
    border-radius:2px;
    transition:all 0.3s;
}

.qh-menu-btn.active span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
}

.qh-menu-btn.active span:nth-child(2){
    opacity:0;
}

.qh-menu-btn.active span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
}

.qh-mask{
    display:none;
    position:fixed;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.5);
    z-index:998;
}

.qh-mask.show{
    display:block;
}

/* ========== 首屏视觉区 ========== */
.qh-hero{
    position:relative;
    padding:160px 0 100px;
    overflow:hidden;
    background:linear-gradient(180deg,#0a1f15 0%,#0f2e20 60%,#1a4d34 100%);
}

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

.qh-hero-glow{
    position:absolute;
    border-radius:50%;
    filter:blur(80px);
    opacity:0.4;
}

.qh-glow-1{
    width:500px;
    height:500px;
    background:var(--qh-green-1);
    left:-100px;
    top:-100px;
}

.qh-glow-2{
    width:600px;
    height:600px;
    background:var(--qh-green-2);
    right:-150px;
    bottom:-200px;
    opacity:0.25;
}

.qh-hero-grid{
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background-image:
        linear-gradient(rgba(0,201,128,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,201,128,0.04) 1px, transparent 1px);
    background-size:40px 40px;
}

.qh-hero-inner{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:60px;
    align-items:center;
}

.qh-hero-tag{
    display:inline-block;
    padding:8px 18px;
    background:rgba(0,201,128,0.15);
    border:1px solid rgba(0,201,128,0.3);
    border-radius:50px;
    color:var(--qh-green-2);
    font-size:14px;
    margin-bottom:24px;
}

.qh-hero-text h1{
    font-size:52px;
    color:#fff;
    line-height:1.2;
    margin-bottom:20px;
    font-weight:700;
}

.qh-hero-text > p{
    font-size:17px;
    color:rgba(255,255,255,0.7);
    margin-bottom:36px;
    line-height:1.8;
    max-width:520px;
}

.qh-hero-btns{
    display:flex;
    gap:16px;
    margin-bottom:50px;
}

.qh-hero-data{
    display:flex;
    gap:40px;
    padding-top:30px;
    border-top:1px solid rgba(255,255,255,0.1);
}

.qh-data-item .qh-data-num{
    font-size:32px;
    font-weight:700;
    color:var(--qh-green-2);
    margin-bottom:4px;
}

.qh-data-item p{
    font-size:14px;
    color:rgba(255,255,255,0.6);
}

.qh-hero-cards{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:16px;
}

.qh-hero-card{
    background:rgba(255,255,255,0.06);
    backdrop-filter:blur(12px);
    border:1px solid rgba(0,201,128,0.2);
    border-radius:16px;
    padding:24px 16px;
    text-align:center;
    color:#fff;
    transition:all 0.35s;
}

.qh-hero-card:hover{
    transform:translateY(-6px);
    background:rgba(0,201,128,0.12);
    border-color:rgba(0,201,128,0.4);
    box-shadow:0 12px 32px rgba(0,201,128,0.2);
}

.qh-hero-card-icon{
    width:60px;
    height:60px;
    margin:0 auto 12px;
    background:linear-gradient(135deg,rgba(0,201,128,0.2),rgba(0,201,128,0.08));
    border-radius:14px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:30px;
}

.qh-hero-card h4{
    font-size:15px;
    margin-bottom:4px;
}

.qh-hero-card p{
    font-size:13px;
    color:rgba(255,255,255,0.6);
}

/* ========== 通用区块 ========== */
.qh-section{
    padding:90px 0;
}

.qh-section-bg{
    background:var(--qh-green-bg);
}

.qh-section-dark{
    background:linear-gradient(180deg,#0f2e20,#1a4d34);
    color:#fff;
}

.qh-section-head{
    text-align:center;
    margin-bottom:56px;
}

.qh-section-tag{
    display:inline-block;
    font-size:13px;
    letter-spacing:2px;
    color:var(--qh-green-1);
    font-weight:600;
    margin-bottom:12px;
}

.qh-section-dark .qh-section-tag{
    color:var(--qh-green-2);
}

.qh-section-head h2{
    font-size:36px;
    color:var(--qh-dark);
    margin-bottom:12px;
    font-weight:700;
}

.qh-section-dark .qh-section-head h2{
    color:#fff;
}

.qh-section-head p{
    color:var(--qh-text-gray);
    font-size:15px;
}

.qh-section-dark .qh-section-head p{
    color:rgba(255,255,255,0.7);
}

.qh-section-more{
    text-align:center;
    margin-top:48px;
}

/* ========== 核心优势 ========== */
.qh-advantage-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}

.qh-advantage-item{
    text-align:center;
    padding:36px 24px;
    border-radius:16px;
    background:#fff;
    border:1px solid var(--qh-border);
    transition:all 0.35s;
}

.qh-advantage-item:hover{
    transform:translateY(-6px);
    border-color:var(--qh-green-2);
    box-shadow:var(--qh-shadow);
}

.qh-advantage-icon{
    width:64px;
    height:64px;
    margin:0 auto 20px;
    background:linear-gradient(135deg,var(--qh-green-1),var(--qh-green-2));
    border-radius:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:30px;
    box-shadow:0 6px 16px rgba(0,168,107,0.3);
}

.qh-advantage-item h3{
    font-size:18px;
    margin-bottom:10px;
    color:var(--qh-dark);
}

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

/* ========== 关于我们 ========== */
.qh-about-wrap{
    display:grid;
    grid-template-columns:1fr 1.1fr;
    gap:60px;
    align-items:center;
}

.qh-about-text h2{
    font-size:32px;
    margin-bottom:12px;
    color:var(--qh-dark);
}

.qh-section-dark .qh-about-text h2{
    color:#fff;
}

.qh-about-sub{
    color:var(--qh-green-1);
    font-size:16px;
    margin-bottom:24px;
    font-weight:500;
}

.qh-section-dark .qh-about-sub{
    color:var(--qh-green-2);
}

.qh-about-desc{
    color:var(--qh-text-gray);
    line-height:1.9;
    margin-bottom:32px;
}

.qh-section-dark .qh-about-desc{
    color:rgba(255,255,255,0.75);
}

.qh-about-media,
.qh-about-img{
    position:relative;
    border-radius:20px;
    overflow:hidden;
    box-shadow:0 12px 40px rgba(0,0,0,0.15);
}

.qh-about-img img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.qh-play-btn{
    position:absolute;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
    width:80px;
    height:80px;
    background:rgba(0,201,128,0.9);
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-size:28px;
    cursor:pointer;
    box-shadow:0 0 0 16px rgba(0,201,128,0.2);
    transition:all 0.35s;
}

.qh-play-btn:hover{
    transform:translate(-50%,-50%) scale(1.1);
    box-shadow:0 0 0 22px rgba(0,201,128,0.25);
}

/* 优势四格 */
.qh-about-features{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
    margin-top:28px;
    margin-bottom:28px;
}

.qh-feature-item{
    background:var(--qh-green-light);
    border-radius:12px;
    padding:20px 16px;
    text-align:center;
    transition:all 0.3s;
}

.qh-feature-item:hover{
    transform:translateY(-3px);
    box-shadow:0 6px 16px rgba(0,168,107,0.12);
}

.qh-feature-icon{
    font-size:28px;
    margin-bottom:8px;
}

.qh-feature-item h4{
    font-size:15px;
    margin-bottom:4px;
    color:var(--qh-dark);
}

.qh-feature-item p{
    font-size:13px;
    color:var(--qh-text-gray);
    margin:0;
}

/* 实力数据 */
.qh-strength-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}

.qh-strength-item{
    text-align:center;
    padding:40px 20px;
    background:#fff;
    border-radius:16px;
    box-shadow:0 4px 20px rgba(0,0,0,0.05);
    transition:all 0.35s;
}

.qh-strength-item:hover{
    transform:translateY(-6px);
    box-shadow:var(--qh-shadow-hover);
}

.qh-strength-num{
    font-size:42px;
    font-weight:700;
    background:linear-gradient(135deg,var(--qh-green-1),var(--qh-green-2));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    margin-bottom:8px;
}

.qh-strength-item p{
    color:var(--qh-text-gray);
    font-size:15px;
}

/* ========== 产品网格 ========== */
.qh-product-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}

.qh-product-item{
    background:#fff;
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 4px 18px rgba(0,0,0,0.05);
    transition:all 0.35s;
    border:1px solid var(--qh-border);
}

.qh-product-item:hover{
    transform:translateY(-8px);
    box-shadow:var(--qh-shadow-hover);
    border-color:var(--qh-green-2);
}

.qh-product-img{
    height:200px;
    overflow:hidden;
}

.qh-product-img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform 0.6s;
}

.qh-product-item:hover .qh-product-img img{
    transform:scale(1.08);
}

.qh-product-name{
    padding:18px 20px;
    text-align:center;
    font-size:15px;
    font-weight:500;
    color:var(--qh-dark);
}

/* ========== 案例网格 ========== */
.qh-case-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}

.qh-case-item{
    border-radius:14px;
    overflow:hidden;
    position:relative;
    box-shadow:0 4px 18px rgba(0,0,0,0.08);
    transition:all 0.35s;
    cursor:pointer;
}

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

.qh-case-item img{
    width:100%;
    height:240px;
    object-fit:cover;
}

.qh-case-title{
    position:absolute;
    left:0;
    bottom:0;
    width:100%;
    padding:16px 20px;
    background:linear-gradient(transparent,rgba(0,0,0,0.75));
    color:#fff;
    font-size:15px;
    font-weight:500;
}

/* ========== 新闻网格 ========== */
.qh-news-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:28px;
}

.qh-news-list{
    max-width:900px;
    margin:0 auto;
}

.qh-news-item{
    background:#fff;
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 4px 18px rgba(0,0,0,0.05);
    transition:all 0.35s;
    margin-bottom:28px;
}

.qh-news-item:hover{
    transform:translateY(-4px);
    box-shadow:var(--qh-shadow);
}

.qh-news-img{
    height:200px;
    overflow:hidden;
}

.qh-news-img img{
    width:100%;
    height:100%;
    object-fit:cover;
}

.qh-news-body{
    padding:22px;
}

.qh-news-title{
    font-size:17px;
    font-weight:500;
    margin-bottom:12px;
    color:var(--qh-dark);
    line-height:1.5;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}

.qh-news-desc{
    font-size:14px;
    color:var(--qh-text-gray);
    line-height:1.8;
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
}

/* ========== 内页头部 ========== */
.qh-page-head{
    position:relative;
    padding:140px 0 70px;
    margin-top:72px;
    background:
        radial-gradient(circle at 10% 30%, rgba(0,201,128,0.12) 0%, transparent 45%),
        linear-gradient(180deg,#0f2e20 0%,#1a4d34 100%);
    overflow:hidden;
}

.qh-page-head::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background-image:
        linear-gradient(rgba(0,201,128,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,201,128,0.04) 1px, transparent 1px);
    background-size:40px 40px;
}

.qh-page-breadcrumb{
    color:rgba(255,255,255,0.6);
    font-size:14px;
    margin-bottom:16px;
    position:relative;
    z-index:2;
}

.qh-page-breadcrumb a{
    color:rgba(255,255,255,0.8);
}

.qh-page-breadcrumb a:hover{
    color:#fff;
}

.qh-page-head h1{
    font-size:40px;
    color:#fff;
    margin-bottom:10px;
    position:relative;
    z-index:2;
}

.qh-page-head > .qh-container > p{
    color:rgba(255,255,255,0.7);
    font-size:15px;
    position:relative;
    z-index:2;
}

/* ========== 分类标签 ========== */
.qh-cat-tabs{
    display:flex;
    gap:12px;
    justify-content:center;
    margin-bottom:48px;
    flex-wrap:wrap;
}

.qh-cat-tab{
    padding:10px 26px;
    border-radius:50px;
    background:#fff;
    border:1px solid var(--qh-border);
    color:var(--qh-text-gray);
    cursor:pointer;
    transition:all 0.25s;
    position:relative;
    overflow:hidden;
    font-size:14px;
}

.qh-cat-tab::before{
    content:"";
    position:absolute;
    left:-100%;
    top:0;
    width:100%;
    height:100%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
    transition:left 0.5s ease;
}

.qh-cat-tab:hover::before{
    left:100%;
}

.qh-cat-tab:hover,
.qh-cat-tab.active{
    background:linear-gradient(135deg,var(--qh-green-3),var(--qh-green-1));
    color:#fff;
    border-color:transparent;
    box-shadow:0 4px 14px rgba(0,168,107,0.3);
}

/* ========== 分页 ========== */
.qh-pagination{
    display:flex;
    gap:8px;
    justify-content:center;
    margin-top:50px;
    flex-wrap:wrap;
}

.qh-pagination a{
    padding:9px 20px;
    border-radius:8px;
    background:#fff;
    border:1px solid var(--qh-border);
    color:var(--qh-text-gray);
    font-size:14px;
    transition:all 0.25s;
    position:relative;
    overflow:hidden;
}

.qh-pagination a::before{
    content:"";
    position:absolute;
    left:-100%;
    top:0;
    width:100%;
    height:100%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
    transition:left 0.45s ease;
}

.qh-pagination a:hover::before{
    left:100%;
}

.qh-pagination a:hover,
.qh-pagination a.active{
    background:linear-gradient(135deg,var(--qh-green-3),var(--qh-green-1));
    color:#fff;
    border-color:transparent;
    transform:translateY(-2px);
    box-shadow:0 4px 14px rgba(0,168,107,0.3);
}

/* ========== 联系我们 ========== */
.qh-contact-wrap{
    display:grid;
    grid-template-columns:1fr 1.3fr;
    gap:50px;
}

.qh-contact-info h3,
.qh-contact-form h3{
    font-size:22px;
    margin-bottom:30px;
    color:var(--qh-dark);
    position:relative;
    padding-bottom:12px;
}

.qh-contact-info h3::after,
.qh-contact-form h3::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:50px;
    height:3px;
    background:linear-gradient(90deg,var(--qh-green-1),var(--qh-green-2));
    border-radius:2px;
}

.qh-contact-item{
    display:flex;
    gap:16px;
    margin-bottom:24px;
    align-items:flex-start;
}

.qh-contact-icon{
    width:48px;
    height:48px;
    background:linear-gradient(135deg,var(--qh-green-1),var(--qh-green-2));
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    flex-shrink:0;
    box-shadow:0 4px 14px rgba(0,168,107,0.3);
}

.qh-contact-item h4{
    font-size:16px;
    margin-bottom:6px;
    color:var(--qh-dark);
}

.qh-contact-item p{
    color:var(--qh-text-gray);
    font-size:14px;
}

.qh-contact-form{
    background:#fff;
    padding:36px;
    border-radius:18px;
    box-shadow:0 6px 24px rgba(0,0,0,0.05);
}

.qh-form-row{
    margin-bottom:20px;
}

.qh-form-row label{
    display:block;
    margin-bottom:8px;
    color:var(--qh-text-gray);
    font-size:14px;
}

.qh-form-row input,
.qh-form-row textarea{
    width:100%;
    padding:12px 16px;
    border:1px solid var(--qh-border);
    border-radius:10px;
    font-size:14px;
    outline:none;
    transition:all 0.25s;
    font-family:inherit;
}

.qh-form-row input:focus,
.qh-form-row textarea:focus{
    border-color:var(--qh-green-1);
    box-shadow:0 0 0 3px rgba(0,168,107,0.1);
}

/* ========== CTA区块 ========== */
.qh-cta{
    padding:70px 0;
    background:linear-gradient(135deg,var(--qh-green-3),var(--qh-green-1));
    position:relative;
    overflow:hidden;
}

.qh-cta::before{
    content:"";
    position:absolute;
    right:-100px;
    top:-100px;
    width:400px;
    height:400px;
    background:rgba(255,255,255,0.08);
    border-radius:50%;
    filter:blur(40px);
}

.qh-cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:relative;
    z-index:2;
}

.qh-cta-text h2{
    font-size:32px;
    color:#fff;
    margin-bottom:8px;
}

.qh-cta-text p{
    color:rgba(255,255,255,0.8);
    font-size:16px;
}

/* ========== 底部 ========== */
.qh-footer{
    background:linear-gradient(180deg,#0a1f15,#07150e);
    color:rgba(255,255,255,0.75);
    padding-top:60px;
}

.qh-footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:50px;
    padding-bottom:50px;
}

.qh-footer-logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:700;
    color:#fff;
    margin-bottom:16px;
}

.qh-footer-slogan{
    margin-bottom:20px !important;
    color:rgba(255,255,255,0.8) !important;
    font-size:15px !important;
}

.qh-footer-contact p{
    margin-bottom:10px;
    font-size:14px;
    display:flex;
    align-items:center;
    gap:8px;
}

.qh-footer-col h4{
    color:#fff;
    font-size:16px;
    margin-bottom:20px;
    position:relative;
    padding-bottom:10px;
}

.qh-footer-col h4::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:36px;
    height:2px;
    background:linear-gradient(90deg,var(--qh-green-1),var(--qh-green-2));
    border-radius:2px;
}

.qh-footer-col li,
.qh-footer-col p{
    margin-bottom:10px;
    font-size:14px;
}

.qh-footer-col a:hover{
    color:var(--qh-green-2);
}

.qh-copyright{
    border-top:1px solid rgba(255,255,255,0.08);
    padding:20px 0;
    text-align:center;
    font-size:13px;
    color:rgba(255,255,255,0.5);
}

/* ========== 返回顶部 ========== */
.qh-back-top{
    position:fixed;
    right:30px;
    bottom:40px;
    width:48px;
    height:48px;
    background:linear-gradient(135deg,var(--qh-green-1),var(--qh-green-2));
    color:#fff;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:20px;
    cursor:pointer;
    box-shadow:0 4px 16px rgba(0,168,107,0.4);
    opacity:0;
    visibility:hidden;
    transform:translateY(20px);
    transition:all 0.3s;
    z-index:99;
}

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

.qh-back-top:hover{
    transform:translateY(-4px);
    box-shadow:0 8px 24px rgba(0,168,107,0.5);
}

/* ========== 响应式 PC > 992px ========== */
@media screen and (max-width:1200px){
    .qh-hero-text h1{
        font-size:42px;
    }
    .qh-product-grid{
        grid-template-columns:repeat(3,1fr);
    }
    .qh-case-grid{
        grid-template-columns:repeat(3,1fr);
    }
}

/* ========== 平板端 ========== */
@media screen and (max-width:992px){
    .qh-hero-inner{
        grid-template-columns:1fr;
        gap:40px;
    }
    .qh-about-wrap{
        grid-template-columns:1fr;
        gap:40px;
    }
    .qh-advantage-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .qh-product-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .qh-case-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .qh-news-grid{
        grid-template-columns:1fr;
    }
    .qh-strength-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .qh-contact-wrap{
        grid-template-columns:1fr;
    }
    .qh-footer-grid{
        grid-template-columns:1fr 1fr;
        gap:36px;
    }
    .qh-cta-inner{
        flex-direction:column;
        text-align:center;
        gap:24px;
    }
}

/* ========== 移动端 WAP ========== */
@media screen and (max-width:768px){
    .qh-nav{
        position:fixed;
        right:-280px;
        top:0;
        width:260px;
        height:100vh;
        background:#fff;
        flex-direction:column;
        padding:90px 24px 30px;
        gap:0;
        box-shadow:-4px 0 20px rgba(0,0,0,0.1);
        transition:right 0.35s;
        z-index:1000;
    }
    .qh-nav.show{
        right:0;
    }
    .qh-nav li{
        border-bottom:1px solid var(--qh-border);
    }
    .qh-nav li a{
        display:block;
        padding:16px 0;
        font-size:16px;
    }
    .qh-nav li a::after{
        display:none;
    }
    .qh-header-btn{
        display:none;
    }
    .qh-menu-btn{
        display:flex;
    }

    .qh-hero{
        padding:120px 0 70px;
    }
    .qh-hero-text h1{
        font-size:32px;
    }
    .qh-hero-cards{
        grid-template-columns:repeat(3,1fr);
        gap:10px;
    }
    .qh-hero-card{
        padding:16px 8px;
    }
    .qh-hero-card-icon{
        width:48px;
        height:48px;
        font-size:24px;
    }
    .qh-hero-data{
        gap:24px;
    }
    .qh-data-item .qh-data-num{
        font-size:26px;
    }

    .qh-section{
        padding:60px 0;
    }
    .qh-section-head h2{
        font-size:26px;
    }
    .qh-advantage-grid{
        grid-template-columns:1fr 1fr;
        gap:14px;
    }
    .qh-product-grid{
        grid-template-columns:1fr 1fr;
        gap:14px;
    }
    .qh-product-img{
        height:150px;
    }
    .qh-case-grid{
        grid-template-columns:1fr 1fr;
        gap:12px;
    }
    .qh-case-item img{
        height:180px;
    }
    .qh-about-features{
        grid-template-columns:1fr 1fr;
    }
    .qh-strength-grid{
        grid-template-columns:1fr 1fr;
        gap:14px;
    }
    .qh-strength-item{
        padding:28px 14px;
    }
    .qh-strength-num{
        font-size:32px;
    }

    .qh-page-head{
        padding:110px 0 50px;
    }
    .qh-page-head h1{
        font-size:28px;
    }
    .qh-cat-tabs{
        gap:8px;
    }
    .qh-cat-tab{
        padding:8px 18px;
        font-size:13px;
    }

    .qh-contact-form{
        padding:24px;
    }

    .qh-footer-grid{
        grid-template-columns:1fr;
        gap:30px;
    }
    .qh-cta-text h2{
        font-size:24px;
    }
}
/* ========== 详情页样式 ========== */
.qh-detail-wrap{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:50px;
    align-items:start;
}

.qh-detail-img{
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 8px 30px rgba(0,0,0,0.08);
}

.qh-detail-img img{
    width:100%;
    height:auto;
}

.qh-detail-info h2{
    font-size:28px;
    color:var(--qh-dark);
    margin-bottom:16px;
}

.qh-detail-desc{
    color:var(--qh-text-gray);
    line-height:1.9;
    margin-bottom:24px;
    font-size:15px;
}

.qh-detail-contact{
    background:var(--qh-green-light);
    padding:20px 24px;
    border-radius:12px;
    margin-bottom:24px;
}

.qh-detail-contact p{
    margin-bottom:8px;
    color:var(--qh-text-gray);
}

.qh-detail-contact strong{
    color:var(--qh-dark);
}

.qh-detail-content{
    background:#fff;
    padding:40px;
    border-radius:16px;
    box-shadow:0 4px 20px rgba(0,0,0,0.05);
    line-height:1.9;
    color:var(--qh-text);
    font-size:15px;
}

.qh-detail-content img{
    max-width:100%;
    border-radius:8px;
    margin:16px 0;
}

/* 移动端详情页 */
@media screen and (max-width:768px){
    .qh-detail-wrap{
        grid-template-columns:1fr;
        gap:30px;
    }
    .qh-detail-content{
        padding:24px;
    }
}