/*
Theme Name: 德万斯 GEO 主题 (Dewansi GEO)
Theme URI: https://dwssw.cn
Author: Dewansi Web Team
Author URI: https://dwssw.cn
Description: 山西德万斯生物科技有限公司官网主题。专注鱼药/水产动保行业（聚维酮碘、有机复合碘、二氧化氯等），内置产品与FAQ自定义类型、后台全站设置面板、AI搜索引擎（GEO）适配：JSON-LD结构化数据、llms.txt、AI爬虫robots白名单。前台不暴露任何管理端入口。
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: dewansi
*/

:root{
  --navy:#152C52; --navy-2:#0F2140; --navy-3:#1D3A6B;
  --pink:#E8386F; --pink-2:#F2689A;
  --gold:#F5A623; --teal:#1F9E92; --green:#3E9B4F;
  --ink:#1E2A3A; --muted:#5B6B82;
  --bg:#F5F8FC; --card:#FFFFFF; --line:#E3EAF3;
  --radius:14px; --maxw:1200px;
  --shadow:0 10px 30px rgba(21,44,82,.10);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-decoration:none;transition:.2s}
a:hover{color:var(--pink)}
ul,ol{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:8px;top:8px;background:#fff;padding:8px 14px;z-index:999;border-radius:6px}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}

/* ---------- 顶栏与头部 ---------- */
.topbar{background:var(--navy-2);color:#B9C7DE;font-size:13px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.topbar strong{color:#fff;font-size:15px;letter-spacing:.5px}
.topbar a{color:#DFE9F6}
.site-header{background:#fff;box-shadow:0 2px 12px rgba(21,44,82,.08);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo-img{max-height:56px;width:auto}
.brand-text .cn{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:1px;line-height:1.2}
.brand-text .en{font-size:11px;color:var(--muted);letter-spacing:2.5px;text-transform:uppercase}
.main-nav ul{display:flex;gap:4px}
.main-nav a{display:block;padding:10px 16px;font-size:15.5px;font-weight:600;color:var(--navy);border-radius:8px}
.main-nav a:hover,.main-nav .current-menu-item>a,.main-nav .current_page_item>a{color:var(--pink);background:#FDEEF3}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:3px;background:var(--navy);margin:5px 0;border-radius:2px}
.header-cta{background:var(--pink);color:#fff;padding:10px 18px;border-radius:999px;font-weight:700;font-size:14.5px;white-space:nowrap}
.header-cta:hover{background:#d42a5f;color:#fff}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy-2) 0%,var(--navy) 55%,var(--navy-3) 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(232,56,111,.35),transparent 70%)}
.hero-inner{padding:88px 20px 96px;position:relative;z-index:2;max-width:var(--maxw);margin:0 auto}
.hero-badge{display:inline-block;background:rgba(232,56,111,.92);padding:6px 16px;border-radius:999px;font-size:14px;font-weight:700;letter-spacing:1px;margin-bottom:20px}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.3;font-weight:800;margin-bottom:16px;max-width:820px}
.hero h1 em{font-style:normal;color:var(--pink-2)}
.hero p.sub{font-size:17px;color:#C9D6EA;max-width:760px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:999px;font-weight:700;font-size:15.5px;transition:.2s}
.btn-pink{background:var(--pink);color:#fff}
.btn-pink:hover{background:#d42a5f;color:#fff;transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{display:flex;gap:34px;margin-top:44px;flex-wrap:wrap}
.hero-stats .num{font-size:30px;font-weight:800;color:#fff}
.hero-stats .num i{font-style:normal;color:var(--pink-2)}
.hero-stats .lbl{font-size:13px;color:#A9BAD4}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section.alt{background:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 44px}
.sec-kicker{display:inline-block;color:var(--pink);font-weight:800;font-size:14px;letter-spacing:3px;margin-bottom:10px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--navy);line-height:1.35}
.sec-head p{color:var(--muted);margin-top:12px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* 4+1 体系 */
.sys-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:.25s;position:relative}
.sys-card:hover{transform:translateY(-5px);border-color:var(--pink-2)}
.sys-card .ico{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;background:var(--navy);margin-bottom:16px}
.sys-card:nth-child(2) .ico{background:var(--pink)}
.sys-card:nth-child(3) .ico{background:var(--teal)}
.sys-card:nth-child(4) .ico{background:var(--gold)}
.sys-card h3{font-size:19px;color:var(--navy);margin-bottom:8px}
.sys-card p{font-size:14.5px;color:var(--muted)}
.sys-card .tag{position:absolute;top:18px;right:20px;font-size:12px;color:var(--pink);font-weight:700;letter-spacing:1px}

/* 产品卡片 */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--pink-2)}
.product-card .thumb{height:170px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-3) 100%);display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px;font-weight:800;letter-spacing:2px}
.product-card .thumb.pink{background:linear-gradient(135deg,#B8234F,#E8386F)}
.product-card .thumb.teal{background:linear-gradient(135deg,#167269,#1F9E92)}
.product-card .thumb.gold{background:linear-gradient(135deg,#C77E0A,#F5A623)}
.product-card .body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.product-card .cat{font-size:12px;color:var(--pink);font-weight:700;letter-spacing:1px;margin-bottom:6px}
.product-card h3{font-size:18.5px;color:var(--navy);line-height:1.4;margin-bottom:8px}
.product-card h3 a{color:inherit}
.product-card p{font-size:14px;color:var(--muted);flex:1}
.product-card .more{margin-top:14px;font-size:14px;font-weight:700;color:var(--pink)}

/* 优势 */
.adv{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.adv .n{font-size:30px;font-weight:800;color:var(--pink);line-height:1;min-width:44px}
.adv h3{font-size:17px;color:var(--navy);margin-bottom:6px}
.adv p{font-size:14px;color:var(--muted)}

/* 工艺 */
.process-band{background:var(--navy);color:#fff;border-radius:20px;padding:48px 40px}
.process-band h2{color:#fff;font-size:28px;margin-bottom:10px;text-align:center}
.process-band .lead{text-align:center;color:#B9C7DE;max-width:680px;margin:0 auto 34px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:22px}
.step .s-num{color:var(--pink-2);font-weight:800;font-size:14px;letter-spacing:2px;margin-bottom:8px}
.step h3{font-size:16.5px;margin-bottom:8px;color:#fff}
.step p{font-size:13.5px;color:#B9C7DE}

/* 病害防治 */
.disease-bar{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.disease-bar .pct{font-size:24px;font-weight:800;color:var(--pink);min-width:86px}
.disease-bar h3{font-size:16px;color:var(--navy)}
.disease-bar p{font-size:13.5px;color:var(--muted)}

/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy);font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--pink);font-weight:400;flex-shrink:0}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-a{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* 新闻 */
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.post-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.post-card .date{font-size:13px;color:var(--pink);font-weight:700;padding:18px 22px 0}
.post-card h3{font-size:17px;color:var(--navy);padding:6px 22px 0;line-height:1.5}
.post-card h3 a{color:inherit}
.post-card p{font-size:14px;color:var(--muted);padding:8px 22px 20px;flex:1}

/* CTA */
.cta-band{background:linear-gradient(120deg,var(--pink) 0%,#C42457 100%);border-radius:20px;color:#fff;padding:44px 40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:26px;margin-bottom:6px}
.cta-band p{color:#FBD9E4}
.cta-band .tel{font-size:30px;font-weight:800;letter-spacing:1px}

/* ---------- 文章/页面 ---------- */
.page-hero{background:var(--navy);color:#fff;padding:52px 0}
.page-hero h1{font-size:30px;font-weight:800}
.breadcrumb{font-size:13px;color:#9FB2CC;margin-top:8px}
.breadcrumb a{color:#C9D6EA}
.page-hero .desc{color:#C9D6EA;margin-top:10px;max-width:720px}
.content-area{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px 42px;margin-top:28px;box-shadow:var(--shadow)}
.content-area h2{font-size:23px;color:var(--navy);margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--pink)}
.content-area h2:first-child{margin-top:0}
.content-area h3{font-size:19px;color:var(--navy);margin:24px 0 10px}
.content-area p{margin-bottom:14px;color:#33415A}
.content-area ul{list-style:disc;padding-left:22px;margin-bottom:14px}
.content-area ul li{margin-bottom:6px;color:#33415A}
.content-area table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px}
.content-area th{background:var(--navy);color:#fff;padding:10px 12px;text-align:left;font-weight:600}
.content-area td{border:1px solid var(--line);padding:10px 12px;color:#33415A}
.content-area tr:nth-child(even) td{background:#F7FAFD}
.post-meta{font-size:13.5px;color:var(--muted);margin:6px 0 18px}
.post-meta span{margin-right:16px}
.cat-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.cat-filter a{padding:8px 18px;border-radius:999px;border:1.5px solid var(--line);font-size:14px;font-weight:600;color:var(--navy);background:#fff}
.cat-filter a:hover,.cat-filter .active{background:var(--pink);border-color:var(--pink);color:#fff}
.product-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}
.product-spec{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.product-spec h3{font-size:17px;color:var(--navy);margin-bottom:12px}
.contact-side{background:var(--navy);color:#fff;border-radius:var(--radius);padding:26px;margin-top:20px}
.contact-side h3{color:#fff;font-size:17px;margin-bottom:12px}
.contact-side p{font-size:14.5px;color:#C9D6EA;margin-bottom:6px}
.contact-side .tel{font-size:22px;font-weight:800;color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-2);color:#A9BAD4;margin-top:0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:1px}
.site-footer p,.site-footer li{font-size:14px;line-height:2}
.site-footer a{color:#A9BAD4}
.site-footer a:hover{color:var(--pink-2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.footer-bottom a{color:#A9BAD4}
.to-top{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--shadow);z-index:90;opacity:0;pointer-events:none;transition:.3s}
.to-top.show{opacity:1;pointer-events:auto}

/* ---------- 响应式 ---------- */
@media(max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.product-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .product-hero{grid-template-columns:1fr}
}
@media(max-width:760px){
  .main-nav{position:fixed;top:0;right:-280px;width:280px;height:100vh;background:#fff;box-shadow:-6px 0 24px rgba(0,0,0,.15);transition:.3s;z-index:200;padding:80px 20px 20px}
  .main-nav.open{right:0}
  .main-nav ul{flex-direction:column;gap:2px}
  .nav-toggle{display:block;z-index:300;position:relative}
  .grid-2,.grid-3,.grid-4,.product-grid,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-inner{padding:56px 20px 64px}
  .section{padding:52px 0}
  .content-area{padding:26px 20px}
  .header-cta{display:none}
}