/* ========== 粤融合宽带网 · 全站公共样式 ========== */
:root{
  --primary:#1a6dff;--primary-dark:#0e4fc0;--accent:#ff7a2f;
  --bg:#f4f6fa;--card:#fff;--text:#1c2333;--text-2:#5a6478;--text-3:#9aa3b5;
  --border:#e8ecf3;--radius:14px;
  --brand-red:#e1251b;
  --shadow:0 2px 12px rgba(28,42,80,.06);--shadow-hover:0 8px 24px rgba(28,42,80,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1280px;margin:0 auto;padding:0 16px}

/* 顶部通栏 */
.topbar{background:linear-gradient(90deg,var(--primary-dark),var(--primary));color:#fff;font-size:13px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center}
.topbar a{opacity:.9}.topbar a:hover{opacity:1}

/* 导航 */
.header{background:#fff;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}
.header .container{display:flex;align-items:center;gap:32px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;flex-shrink:0}
.logo .logo-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#4d9aff);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px}
.logo .logo-text{color:var(--brand-red)}
.nav{display:flex;gap:6px;flex:1}
.nav a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text-2);font-weight:500;transition:.2s;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--primary);background:#eef4ff}
.btn-apply{background:var(--accent);color:#fff;padding:9px 22px;border-radius:22px;font-size:15px;font-weight:600;flex-shrink:0;transition:.2s;box-shadow:0 4px 12px rgba(255,122,47,.35)}
.btn-apply:hover{background:#f0681a;transform:translateY(-1px)}

/* 栏目页头图 */
.page-hero{background:linear-gradient(120deg,#0e2a66,#1553d4 55%,#3f8cff);color:#fff;border-radius:var(--radius);padding:34px 40px;margin:20px 0;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.page-hero::after{content:"";position:absolute;right:-50px;top:-50px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%)}
.page-hero h1{font-size:28px;letter-spacing:1px;margin-bottom:6px;position:relative}
.page-hero p{opacity:.85;font-size:14px;position:relative}
.breadcrumb{font-size:13px;color:var(--text-3);margin:16px 0 0}
.breadcrumb a:hover{color:var(--primary)}

/* 快捷入口 */
.quick{padding:4px 0 16px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quick-item{background:var(--card);border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow);transition:.25s;border:1px solid transparent}
.quick-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#dbe7ff}
.quick-item .qi-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.qi-1{background:#eaf1ff}.qi-2{background:#fff3e8}.qi-3{background:#e8f9ef}.qi-4{background:#f3ecff}
.quick-item b{font-size:15px;display:block}
.quick-item small{color:var(--text-3);font-size:12px}

/* 首页 Hero */
.hero{padding:20px 0}
.hero-grid{display:grid;grid-template-columns:2.2fr 1fr;gap:16px}
.hero-banner{border-radius:var(--radius);overflow:hidden;position:relative;min-height:240px;background:linear-gradient(120deg,#0e2a66 0%,#1553d4 55%,#3f8cff 100%);color:#fff;display:flex;align-items:center;padding:40px;box-shadow:var(--shadow)}
.hero-banner::after{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%)}
.hero-banner .tag{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:4px 14px;border-radius:20px;font-size:13px;margin-bottom:14px}
.hero-banner h1{font-size:34px;line-height:1.3;margin-bottom:8px;letter-spacing:1px}
.hero-banner h1 span{color:#ffd166}
.hero-banner p{opacity:.85;font-size:15px;margin-bottom:22px;max-width:420px}
.hero-banner .cta{display:inline-flex;gap:12px}
.hero-banner .cta a{padding:12px 30px;border-radius:26px;font-weight:600;font-size:15px;transition:.2s}
.hero-banner .cta .main{background:#fff;color:var(--primary)}
.hero-banner .cta .main:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.25)}
.hero-banner .cta .ghost{border:1px solid rgba(255,255,255,.6)}
.hero-banner .cta .ghost:hover{background:rgba(255,255,255,.12)}
.hero-side{display:flex;flex-direction:column;gap:16px}
.side-card{flex:1;border-radius:var(--radius);padding:22px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}
.side-card.speed{background:linear-gradient(135deg,#1f3c88,#4a6cf7)}
.side-card.service{background:linear-gradient(135deg,#b5432a,#ff7a2f)}
.side-card h3{font-size:19px;margin-bottom:6px}
.side-card .num{font-size:30px;font-weight:800;letter-spacing:1px}
.side-card p{font-size:13px;opacity:.88}
.side-card .decor{position:absolute;right:-20px;bottom:-20px;font-size:90px;opacity:.14}

/* 三栏布局 */
.main-layout{padding:8px 0 40px}
.main-grid{display:grid;grid-template-columns:270px 1fr 280px;gap:16px;align-items:start}
.col-sticky{position:sticky;top:84px}
.panel{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel-head{padding:16px 18px 12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
.panel-head h2{font-size:17px;display:flex;align-items:center;gap:8px;line-height:1}
.panel-head h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);display:inline-block}
.panel-head a{display:inline-flex;align-items:center;font-size:16px;font-weight:800;color:#0f3a85;border:2px solid #0f3a85;border-radius:999px;padding:6px 18px;background:rgba(15,58,133,.06);transition:all .15s;white-space:nowrap;line-height:1.3}
.panel-head a:hover{background:#0f3a85;color:#fff;box-shadow:0 3px 10px rgba(15,58,133,.3)}

/* 左栏套餐 */
.city-tabs{display:flex;flex-wrap:wrap;gap:6px;padding:12px 18px 4px}
.city-tabs button{border:1px solid var(--border);background:#f7f9fc;color:var(--text-2);font-size:13px;padding:5px 14px;border-radius:18px;cursor:pointer;transition:.2s}
.city-tabs button.active{background:var(--primary);border-color:var(--primary);color:#fff}
.pkg-list{padding:12px 14px 16px;display:flex;flex-direction:column;gap:10px}
.pkg-card{border:1px solid var(--border);border-radius:12px;padding:14px;transition:.2s;position:relative;display:block}
.pkg-card:hover{border-color:#bcd2ff;box-shadow:0 4px 14px rgba(26,109,255,.10)}
.pkg-card .pkg-tag{position:absolute;top:-1px;right:14px;background:var(--accent);color:#fff;font-size:11px;padding:2px 10px;border-radius:0 0 8px 8px}
.pkg-card h4{font-size:15px;margin-bottom:6px}
.pkg-card .speed-row{display:flex;align-items:baseline;gap:6px;margin-bottom:8px}
.pkg-card .speed{font-size:24px;font-weight:800;color:var(--primary)}
.pkg-card .speed small{font-size:12px;font-weight:400;color:var(--text-3)}
.pkg-card .price{font-size:13px;color:#fff;background:linear-gradient(135deg,#ff7a18,#ff9d00);border-radius:8px;padding:3px 10px;margin-left:auto}
.pkg-card .price b{color:#fff;font-size:20px}
.pkg-card .price b small{font-size:12px;font-weight:400}
.pkg-card .feats{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0 10px}
.pkg-card .feats span{background:#f2f6ff;color:var(--primary-dark);font-size:11px;padding:2px 8px;border-radius:4px}
.pkg-card .btn-mini{display:block;text-align:center;background:linear-gradient(90deg,var(--accent),#ff9a5c);color:#fff;font-size:13px;font-weight:600;padding:7px 0;border-radius:8px}
.panel-note{padding:0 18px 16px;font-size:12px;color:var(--text-3)}

/* 省份胶囊 Tab + 地市链接网格（套餐页） */
.prov-tabs{display:flex;flex-wrap:wrap;gap:12px;padding:6px 0 14px;border-bottom:1px dashed var(--border);margin-bottom:16px}
.prov-tabs button{font-size:14.5px;padding:0 22px;height:40px;border-radius:999px;border:1.5px solid rgba(30,90,180,.25);background:rgba(30,90,180,.08);color:var(--primary);font-weight:600;cursor:pointer;transition:all .15s;white-space:nowrap}
.prov-tabs button:hover{background:rgba(30,90,180,.16);border-color:var(--primary);transform:translateY(-1px)}
.prov-tabs button.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(30,90,180,.32)}
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.city-link{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--text);font-weight:600;font-size:14.5px;transition:all .15s}
.city-link small{display:block;font-weight:400;color:var(--text-3);font-size:12px;margin-top:2px}
.city-link .go{color:var(--primary);font-size:13px;white-space:nowrap}
.city-link:hover{border-color:var(--primary);background:#fff;box-shadow:0 4px 14px rgba(30,90,180,.12);transform:translateY(-2px)}

/* 中栏文章流 */
.feed-tabs{background:var(--card);border-radius:var(--radius) var(--radius) 0 0;box-shadow:var(--shadow);display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:14px 20px;border-bottom:1px solid var(--border);overflow-x:auto}
.feed-tabs a{display:flex;align-items:center;font-size:15px;padding:0 26px;height:42px;color:var(--primary);font-weight:600;text-decoration:none;white-space:nowrap;background:rgba(30,90,180,.08);border:1.5px solid rgba(30,90,180,.25);border-radius:999px;transition:all .15s}
.feed-tabs a:hover{background:rgba(30,90,180,.16);border-color:var(--primary);transform:translateY(-1px)}
.feed-tabs a.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(30,90,180,.32)}
.feed-body{background:var(--card);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow);padding:6px 18px 10px}
.article-row{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);cursor:pointer}
.article-row:last-child{border-bottom:none}
.article-row .thumb{width:168px;height:112px;border-radius:10px;flex-shrink:0;overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:17px;text-align:center;line-height:1.4;padding:8px}
.article-row:nth-child(4n+1) .thumb{background:linear-gradient(135deg,#1553d4,#4d9aff)}
.article-row:nth-child(4n+2) .thumb{background:linear-gradient(135deg,#0e9f6e,#3ddc97)}
.article-row:nth-child(4n+3) .thumb{background:linear-gradient(135deg,#d9541e,#ff9a5c)}
.article-row:nth-child(4n) .thumb{background:linear-gradient(135deg,#6b3fd4,#a78bfa)}
.article-row h3{font-size:17px;margin-bottom:8px;line-height:1.45}
.article-row h3 a:hover{color:var(--primary)}
.article-row p{font-size:13.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.article-row .meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--text-3)}
.article-row .meta .author{color:var(--primary)}
.load-more{display:block;text-align:center;margin:8px 0 6px}
.load-more button{background:#f2f6ff;color:var(--primary);border:none;font-size:14px;font-weight:600;padding:11px 46px;border-radius:24px;cursor:pointer;transition:.2s}
.load-more button:hover{background:var(--primary);color:#fff}

/* 右栏 */
.knowledge-list{padding:6px 18px 14px}
.knowledge-list li{padding:13px 0;border-bottom:1px dashed var(--border)}
.knowledge-list li:last-child{border:none}
.knowledge-list a{display:flex;gap:12px;align-items:flex-start}
.knowledge-list .no{width:22px;height:22px;border-radius:6px;background:#f0f3f9;color:var(--text-3);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:3px}
.knowledge-list li:nth-child(-n+3) .no{background:linear-gradient(135deg,#ff7a2f,#ffb25c);color:#fff}
.knowledge-list b{font-size:14px;display:block;line-height:1.5}
.knowledge-list a:hover b{color:var(--primary)}
.knowledge-list small{color:var(--text-3);font-size:12px}
.tech-q{padding:6px 16px 16px}
.tech-q .qa{background:#f7f9fc;border-radius:10px;padding:12px 14px;margin-bottom:10px;font-size:13px}
.tech-q .qa .q{font-weight:700;margin-bottom:4px;display:flex;align-items:center;gap:6px}
.tech-q .qa .q::before{content:"问";background:var(--primary);color:#fff;font-size:11px;padding:1px 6px;border-radius:4px;flex-shrink:0}
.tech-q .qa .a{color:var(--text-2);display:flex;gap:6px;align-items:flex-start}
.tech-q .qa .a::before{content:"答";background:var(--accent);color:#fff;font-size:11px;padding:1px 6px;border-radius:4px;flex-shrink:0;margin-top:2px}
.apply-box{background:linear-gradient(135deg,#0e2a66,#1553d4);border-radius:var(--radius);padding:22px;color:#fff;text-align:center;box-shadow:var(--shadow)}
.apply-box h3{font-size:18px;margin-bottom:6px}
.apply-box p{font-size:12.5px;opacity:.8;margin-bottom:14px}
.apply-box .phone{font-size:20px;font-weight:800;letter-spacing:1px;margin-bottom:14px;color:#ffd166}
.apply-box a.btn-white{display:inline-block;background:#fff;color:var(--primary);font-weight:700;padding:10px 34px;border-radius:24px;transition:.2s}
.apply-box a.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.25)}
.tag-cloud{padding:12px 18px 18px;display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{background:#f2f6ff;color:var(--text-2);font-size:12px;padding:4px 12px;border-radius:16px;transition:.2s}
.tag-cloud a:hover{background:var(--primary);color:#fff}

/* 栏目页通用列表 */
.col-page{padding:0 0 40px}
.col-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.kb-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.kb-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.kb-card .kb-cover{height:120px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:34px}
.kb-card:nth-child(4n+1) .kb-cover{background:linear-gradient(135deg,#1553d4,#4d9aff)}
.kb-card:nth-child(4n+2) .kb-cover{background:linear-gradient(135deg,#0e9f6e,#3ddc97)}
.kb-card:nth-child(4n+3) .kb-cover{background:linear-gradient(135deg,#d9541e,#ff9a5c)}
.kb-card:nth-child(4n) .kb-cover{background:linear-gradient(135deg,#6b3fd4,#a78bfa)}
.kb-card .kb-body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
.kb-card h3{font-size:16px;line-height:1.5;margin-bottom:8px}
.kb-card p{font-size:13px;color:var(--text-2);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.kb-card .kb-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3)}
.kb-card .kb-meta .cat{color:var(--primary)}

/* 文章详情页 */
.article-page{max-width:860px;margin:0 auto;padding:24px 16px 60px}
.article-wrap{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:36px 42px}
.article-wrap h1{font-size:26px;line-height:1.5;margin-bottom:14px}
.article-meta{display:flex;gap:16px;font-size:13px;color:var(--text-3);padding-bottom:18px;border-bottom:1px solid var(--border);margin-bottom:24px}
.article-meta .author{color:var(--primary)}
.article-body h2{font-size:20px;margin:28px 0 12px;padding-left:12px;border-left:4px solid var(--primary)}
.article-body h3{font-size:17px;margin:22px 0 10px}
.article-body p{font-size:15px;color:#3a4356;margin-bottom:14px}
.article-body ul{margin:0 0 14px 4px}
.article-body li{font-size:15px;color:#3a4356;margin-bottom:8px;padding-left:22px;position:relative}
.article-body li::before{content:"•";color:var(--primary);position:absolute;left:6px;font-weight:700}
.article-body .tip{background:#f0f6ff;border:1px solid #d6e4ff;border-radius:10px;padding:14px 16px;font-size:14px;color:var(--primary-dark);margin:16px 0}
.article-body .qr-grid{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin:22px 0}
.article-body .qr-item{background:var(--card);border:1.5px solid var(--border);border-radius:14px;padding:18px 22px;text-align:center;box-shadow:var(--shadow);flex:1;min-width:220px;max-width:300px}
.article-body .qr-item img{width:170px;height:170px;object-fit:contain;border-radius:8px;display:block;margin:0 auto 10px}
.article-body .qr-item figcaption{font-size:13.5px;font-weight:600;color:var(--primary);line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.article-body th{background:#f2f6ff;color:var(--primary-dark);padding:10px 12px;text-align:left}
.article-body td{border-bottom:1px solid var(--border);padding:10px 12px;color:#3a4356}
.article-body tr:hover td{background:#fafcff}
.article-nav{display:flex;justify-content:space-between;margin-top:32px;padding-top:20px;border-top:1px solid var(--border);font-size:14px}
.article-nav a{color:var(--text-2)}
.article-nav a:hover{color:var(--primary)}

/* 报装页 */
.apply-page{max-width:900px;margin:0 auto;padding:24px 16px 60px}
.qr-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:16px}
.qr-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;text-align:center;transition:.25s}
.qr-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.qr-card img{width:280px;max-width:100%;margin:0 auto 16px;border-radius:12px;border:1px solid var(--border)}
.qr-card h3{font-size:18px;margin-bottom:8px}
.qr-card .qr-tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 12px;border-radius:14px;margin-bottom:12px}
.qr-tag.t{background:#eaf1ff;color:var(--primary)}
.qr-tag.w{background:#e8f9ef;color:#0e9f6e}
.qr-card p{font-size:13.5px;color:var(--text-2)}
.apply-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:16px}
.step-card{background:var(--card);border-radius:var(--radius);padding:20px 16px;text-align:center;box-shadow:var(--shadow)}
.step-card .num{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
.step-card b{font-size:14.5px;display:block;margin-bottom:4px}
.step-card small{font-size:12px;color:var(--text-3)}

/* 城市选择页 */
.province-block{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 24px;margin-top:16px}
.province-block h2{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.province-block h2 .p-icon{width:30px;height:30px;border-radius:8px;background:#eef4ff;display:flex;align-items:center;justify-content:center;font-size:16px}
.city-chips{display:flex;flex-wrap:wrap;gap:10px}
.city-chips a{background:#f7f9fc;border:1px solid var(--border);color:var(--text-2);font-size:14px;padding:7px 18px;border-radius:20px;transition:.2s}
.city-chips a:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-1px)}
.city-chips a.single{background:#fff7f0;border-color:#ffe0c7;color:var(--accent)}
.city-chips a.single:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* FAQ 手风琴 */
.faq-list{max-width:860px;margin:16px auto 0}
.faq-item{background:var(--card);border-radius:12px;box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.faq-item .faq-q{padding:16px 20px;font-size:15.5px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:12px}
.faq-item .faq-q::before{content:"Q";background:var(--primary);color:#fff;font-size:13px;padding:2px 9px;border-radius:6px;flex-shrink:0}
.faq-item .faq-q .arrow{margin-left:auto;color:var(--text-3);transition:.25s}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;font-size:14.5px;color:var(--text-2)}
.faq-item .faq-a div{padding:0 20px 18px 46px}

/* 页脚 */
.footer{background:#141c2e;color:#8a94a8;padding:36px 0 24px;font-size:13px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:26px;border-bottom:1px solid #26324a}
.footer h4{color:#dfe5f0;font-size:15px;margin-bottom:14px}
.footer li{margin-bottom:9px}
.footer a:hover{color:#fff}
.footer .f-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
.footer .f-logo .f-logo-text{color:#ff4438}
.footer .f-logo .logo-icon{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#4d9aff);display:flex;align-items:center;justify-content:center;font-size:17px}
.copyright{text-align:center;padding-top:18px;font-size:12px;color:#5a6478}
.copyright a{color:#5a6478;text-decoration:none}
.copyright a:hover{color:#0f3a85;text-decoration:underline}

/* ========== 响应式 ========== */
/* 平板（≤1100px） */
@media(max-width:1100px){
  .main-grid{grid-template-columns:240px 1fr}
  .col-right{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  .col-grid{grid-template-columns:repeat(2,1fr)}
}

/* 手机 / 窄屏（≤820px） */
@media(max-width:820px){
  /* 顶部通栏：两行信息纵排，字号缩小 */
  .topbar{font-size:12px}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:3px;padding-top:6px;padding-bottom:6px}

  /* 导航：Logo + 报装按钮一行，菜单第二行横向滑动（不再隐藏） */
  .header .container{flex-wrap:wrap;height:auto;gap:8px;padding-top:10px;padding-bottom:0}
  .logo{font-size:19px}
  .logo .logo-icon{width:34px;height:34px;border-radius:8px;font-size:17px}
  .btn-apply{margin-left:auto;padding:8px 16px;font-size:14px}
  .nav{display:flex;order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;gap:2px;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .nav a{padding:9px 13px;font-size:14px;flex-shrink:0}

  /* Hero 与快捷入口 */
  .hero-grid,.quick-grid{grid-template-columns:1fr}
  .hero-banner{padding:24px 20px;min-height:0}
  .hero-banner h1{font-size:24px}
  .hero-banner p{font-size:13.5px;margin-bottom:16px}
  .hero-banner .cta{display:flex;flex-wrap:wrap;gap:10px}
  .hero-banner .cta a{flex:1;text-align:center;padding:12px 10px;min-width:140px}
  .quick-item{padding:14px}
  .quick-item .qi-icon{width:40px;height:40px;font-size:20px}

  /* 三栏 → 单栏 */
  .main-grid{grid-template-columns:1fr}
  .col-sticky{position:static}
  .col-right{grid-template-columns:1fr}
  .col-grid{grid-template-columns:1fr}

  /* 面板标题行：允许换行 */
  .panel-head{flex-wrap:wrap;gap:8px}
  .panel-head a{font-size:14px;padding:5px 14px;border-width:1.5px}

  /* 中栏 Tab 与文章行 */
  .feed-tabs{gap:8px;padding:12px 14px}
  .feed-tabs a{height:36px;padding:0 16px;font-size:14px}
  .article-row{gap:12px;padding:14px 0}
  .article-row .thumb{width:104px;height:76px;font-size:13px;border-radius:8px}
  .article-row h3{font-size:15px}
  .article-row p{font-size:12.5px;-webkit-line-clamp:2}

  /* 文章详情 */
  .article-wrap{padding:22px 16px}
  .article-wrap h1{font-size:21px}
  .article-meta{flex-wrap:wrap;gap:10px}
  .article-body h2{font-size:18px}
  .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .article-nav{flex-direction:column;gap:10px}

  /* 套餐页 / 城市页 */
  .prov-tabs{gap:8px}
  .prov-tabs button{font-size:13.5px;padding:0 16px;height:36px}
  .city-grid{grid-template-columns:1fr 1fr;gap:10px}
  .city-link{padding:12px;font-size:13.5px}
  .city-chips{gap:8px}
  .city-chips a{padding:6px 14px;font-size:13px}
  .province-block{padding:16px}

  /* 报装页 */
  .qr-grid{grid-template-columns:1fr}
  .apply-steps{grid-template-columns:1fr 1fr}

  /* FAQ */
  .faq-item .faq-q{font-size:14.5px;padding:14px 16px}
  .faq-item .faq-a div{padding:0 16px 16px 42px}

  /* 页脚 */
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
}

/* 小屏手机（≤480px） */
@media(max-width:480px){
  .hero-banner h1{font-size:21px}
  .side-card h3{font-size:17px}
  .side-card .num{font-size:26px}
  .article-row .thumb{width:88px;height:66px}
  .city-grid{grid-template-columns:1fr 1fr}
  .apply-steps{grid-template-columns:1fr 1fr;gap:10px}
  .step-card{padding:14px 8px}
  .footer-grid{grid-template-columns:1fr}
  .article-body .qr-item{padding:14px}
  .article-body .qr-item img{width:150px;height:150px}
  .qr-card{padding:20px 14px}
  .qr-card img{width:220px}
}