/*
Theme Name: Soton Replica
Theme URI: https://sotoneco.duckdns.org
Author: SOTON
Description: 按 sotonstraws.com 视觉重建的主题（绿顶栏 + 白色导航 + 蓝色首屏 + 波浪 + 产品目录栅格）
Version: 1.0
*/
:root{
  --blue:#5bafe5; --blue-d:#48a2dd; --lime:#b0dc57; --green:#48b972;
  --ink:#2d2d2d; --ink2:#5c5c5c; --line:#e8ebef; --surface:#f7f9fb;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Poppins','Montserrat',-apple-system,"Segoe UI",Arial,sans-serif;
  color:var(--ink);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:.2s}
.sv-container{max-width:1200px;margin:0 auto;padding:0 24px}
.sv-clear:after{content:"";display:table;clear:both}

/* 顶栏 */
.sv-topbar{background:var(--green);color:#fff;font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.sv-topbar .sv-container{display:flex;align-items:center;justify-content:space-between;height:36px}
.sv-topbar .sv-social{display:flex;align-items:center;gap:16px}
.sv-topbar .sv-social a{opacity:.9;font-size:11px}
.sv-topbar .sv-social a:hover{opacity:1}
.sv-topbar .sv-sep{width:1px;height:12px;background:rgba(255,255,255,.45)}

/* 主导航 */
.sv-header{background:#fff;box-shadow:0 1px 0 var(--line);position:relative;z-index:20}
.sv-header .sv-container{display:flex;align-items:center;justify-content:space-between;height:86px;gap:24px}
.sv-logo img{width:190px}
.sv-nav{display:flex;align-items:center;gap:30px}
.sv-nav a{font-size:12.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:#3a3a3a;position:relative}
.sv-nav a:hover{color:var(--blue)}
.sv-nav a:after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:var(--blue);transition:.25s}
.sv-nav a:hover:after{width:100%}
.sv-search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:22px;padding:7px 14px;min-width:150px}
.sv-search input{border:0;outline:0;font-size:12px;width:100%;font-family:inherit;background:transparent}
.sv-search button{border:0;background:transparent;cursor:pointer;color:#9aa3ad;font-size:13px}

/* 首屏 */
.sv-hero{position:relative;background:var(--blue) url(assets/banner.jpg) center/cover no-repeat;min-height:560px;display:flex;align-items:center;color:#fff;overflow:hidden}
.sv-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(91,175,229,.92) 0%,rgba(91,175,229,.72) 42%,rgba(91,175,229,.25) 100%)}
.sv-hero .sv-container{position:relative;display:flex;align-items:center;gap:20px;width:100%;padding-top:20px;padding-bottom:60px}
.sv-hero-copy{max-width:600px}
.sv-hero-copy span{font-size:17px;line-height:1.6;color:rgba(255,255,255,.95)}
.sv-hero-copy h1{font-size:46px;line-height:1.12;font-weight:700;margin:14px 0 18px;letter-spacing:-.01em;max-width:520px}
.sv-hero-copy p{font-size:14.5px;color:rgba(255,255,255,.95);margin:0 0 28px;max-width:470px}
.sv-hero-copy p a{text-decoration:underline;text-underline-offset:3px}
.sv-btn{display:inline-flex;align-items:center;gap:10px;background:var(--lime);color:#fff;font-weight:600;font-size:13.5px;
  padding:12px 22px;border-radius:4px}
.sv-btn:hover{background:#9fd047}
.sv-hero-img{flex:1;display:flex;justify-content:flex-end;align-items:flex-end;align-self:stretch}
.sv-hero-img img{max-height:520px;width:auto;object-fit:contain;margin-bottom:-60px}
.sv-wave{position:absolute;left:0;right:0;bottom:-2px;line-height:0}
.sv-wave svg{width:100%;height:70px;display:block}
.sv-mouse{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);opacity:.85;animation:svbounce 2s infinite}
@keyframes svbounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* 区块通用 */
.sv-section{padding:72px 0}
.sv-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.sv-sec-head h2{font-size:34px;line-height:1.15;margin:0;font-weight:700;letter-spacing:-.01em}
.sv-sec-head .sv-sub{font-size:13.5px;color:var(--ink2);max-width:560px;margin:10px 0 0}
.sv-picker{display:inline-flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);
  border-radius:6px;padding:10px 16px;font-size:13px;color:var(--ink2);cursor:pointer}
.sv-picker:hover{border-color:#cfd7e0}

/* 产品目录栅格 */
.sv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.sv-item{display:block;background:#fff}
.sv-item .ph{aspect-ratio:1/1;background:var(--surface);display:flex;align-items:center;justify-content:center;
  overflow:hidden;border:1px solid var(--line);border-radius:6px}
.sv-item .ph img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.sv-item:hover .ph img{transform:scale(1.05)}
.sv-item h3{font-size:14.5px;font-weight:600;margin:14px 0 0;text-align:center;letter-spacing:.01em}
.sv-item:hover h3{color:var(--blue)}

/* 关于 + 新闻 */
.sv-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.sv-split h2{font-size:30px;line-height:1.2;margin:0 0 18px;font-weight:700}
.sv-split p{color:var(--ink2);font-size:15px;margin:0 0 16px}
.sv-stats{display:flex;gap:36px;margin-top:26px}
.sv-stats b{display:block;font-size:28px;color:var(--blue);line-height:1.1}
.sv-stats span{font-size:12.5px;color:var(--ink2)}
.sv-news{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sv-post{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.sv-post .ph{aspect-ratio:16/10;background:var(--surface);overflow:hidden}
.sv-post .ph img{width:100%;height:100%;object-fit:cover;transition:.3s}
.sv-post:hover .ph img{transform:scale(1.04)}
.sv-post .bd{padding:16px 18px 20px}
.sv-post time{font-size:11.5px;color:#9aa3ad;letter-spacing:.04em}
.sv-post h3{font-size:15px;line-height:1.45;margin:8px 0 0;font-weight:600}
.sv-post:hover h3{color:var(--blue)}

/* 内页 */
.sv-page-hero{background:linear-gradient(90deg,#eef6fd,#f7fbfe);padding:52px 0 46px;border-bottom:1px solid var(--line)}
.sv-page-hero h1{font-size:34px;line-height:1.2;margin:0;font-weight:700;max-width:900px}
.sv-page-hero .sv-lede{color:var(--ink2);font-size:15px;margin:12px 0 0;max-width:820px}
.sv-crumb{font-size:12px;color:#9aa3ad;margin-bottom:16px;letter-spacing:.02em}
.sv-crumb a:hover{color:var(--blue)}
.sv-main{padding:34px 0 70px}
.sv-content{max-width:1140px;margin:0 auto;padding:0 24px}
.sv-content .st-wrap{padding:0!important;max-width:none!important}
.sv-content h1{font-size:32px;margin:0 0 18px}
.sv-content h2{font-size:24px;margin:34px 0 14px}
.sv-content p{font-size:15.5px;color:#444}
.sv-content img{border-radius:6px}

/* 文章页 */
.sv-article{max-width:860px;margin:0 auto;padding:0 24px}
.sv-article h1{font-size:32px;line-height:1.25;margin:0 0 16px}
.sv-meta{font-size:12.5px;color:#9aa3ad;margin-bottom:26px}

/* 页脚 */
.sv-footer{background:#1f2429;color:#b9c2cb;padding:52px 0 26px;font-size:13.5px}
.sv-footer .sv-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.sv-footer h4{color:#fff;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 16px;font-weight:600}
.sv-footer a:hover{color:var(--lime)}
.sv-footer li{list-style:none;margin-bottom:9px}
.sv-footer ul{margin:0;padding:0}
.sv-footer img{width:150px;margin-bottom:16px;filter:brightness(0) invert(1)}
.sv-copy{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:18px;font-size:12px;
  display:flex;justify-content:space-between;gap:16px;color:#8b97a2}

@media(max-width:1024px){
  .sv-grid{grid-template-columns:repeat(3,1fr)}
  .sv-nav{gap:20px}
  .sv-hero-copy h1{font-size:36px}
}
@media(max-width:860px){
  .sv-topbar{display:none}
  .sv-header .sv-container{height:auto;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
  .sv-nav{display:none}
  .sv-hero{min-height:auto;padding:40px 0 60px}
  .sv-hero .sv-container{flex-direction:column;align-items:flex-start}
  .sv-hero-img{display:none}
  .sv-hero-copy h1{font-size:29px}
  .sv-grid,.sv-news,.sv-split{grid-template-columns:1fr 1fr;gap:18px}
  .sv-footer .sv-cols{grid-template-columns:1fr 1fr}
  .sv-section{padding:48px 0}
  .sv-sec-head{flex-direction:column;align-items:flex-start}
}

/* ============ 内页：蓝横幅 + 左侧栏 + 内容 ============ */
.sv-inner-banner{background:linear-gradient(120deg,#5bafe5 0%,#7cc0ea 55%,#a7d6f2 100%);color:#fff;padding:46px 0 40px;position:relative;overflow:hidden}
.sv-inner-banner:after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border:26px solid rgba(255,255,255,.12);border-radius:50%}
.sv-inner-banner .sv-crumb{color:rgba(255,255,255,.8);margin-bottom:12px}
.sv-inner-banner .sv-crumb a{color:rgba(255,255,255,.9)}
.sv-inner-banner h1{font-size:34px;line-height:1.2;margin:0;font-weight:700;max-width:900px;position:relative;z-index:1}
.sv-inner-banner p{color:rgba(255,255,255,.92);font-size:14.5px;margin:12px 0 0;max-width:760px;position:relative;z-index:1}

.sv-inner{display:grid;grid-template-columns:268px 1fr;gap:44px;padding:44px 0 70px;align-items:start}
.sv-side{position:sticky;top:20px}
.sv-side h3{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:#9aa3ad;margin:0 0 14px;font-weight:600}
.sv-side ul{list-style:none;margin:0 0 26px;padding:0}
.sv-side li{margin:0}
.sv-side a{display:block;padding:11px 14px;font-size:14px;color:#3a3a3a;border-left:2px solid transparent;border-radius:0 4px 4px 0}
.sv-side a:hover{background:var(--surface);color:var(--blue)}
.sv-side a.on{background:#eef7fe;border-left-color:var(--blue);color:var(--blue);font-weight:600}
.sv-side .sub a{padding-left:28px;font-size:13.3px;color:#5c5c5c}
.sv-side-cta{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:20px 18px;margin-top:8px}
.sv-side-cta b{display:block;font-size:15px;margin-bottom:6px}
.sv-side-cta p{font-size:12.8px;color:var(--ink2);margin:0 0 14px;line-height:1.6}
.sv-side-cta .sv-btn{padding:10px 18px;font-size:12.5px}

.sv-prod-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:24px}
.sv-prod-head h2{font-size:26px;margin:0;font-weight:700}
.sv-prod-head span{font-size:12.5px;color:#9aa3ad}
.sv-sect{margin:44px 0 0}
.sv-sect > h2{font-size:21px;font-weight:700;margin:0 0 18px;padding-left:12px;border-left:3px solid var(--blue)}
.sv-rel{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.sv-rel a{display:flex;gap:14px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff}
.sv-rel a:hover{border-color:#cfd7e0;box-shadow:0 8px 20px rgba(18,38,58,.06)}
.sv-rel .ph{width:96px;height:72px;flex:0 0 96px;background:var(--surface);border-radius:6px;overflow:hidden}
.sv-rel .ph img{width:100%;height:100%;object-fit:cover}
.sv-rel b{display:block;font-size:13.6px;line-height:1.45;font-weight:600;color:var(--ink)}
.sv-rel small{font-size:11.5px;color:#9aa3ad}
.sv-content .st-spec{margin-top:6px}

@media(max-width:1024px){
  .sv-inner{grid-template-columns:1fr;gap:28px}
  .sv-side{position:static}
  .sv-rel{grid-template-columns:1fr}
}

/* 手机端汉堡菜单 */
.sv-mnav{display:none;position:relative;margin-left:auto}
.sv-mnav summary{list-style:none;cursor:pointer;font-size:20px;line-height:1;color:var(--ink);padding:8px 10px;border:1px solid var(--line);border-radius:6px}
.sv-mnav summary::-webkit-details-marker{display:none}
.sv-mnav ul{position:absolute;right:0;top:calc(100% + 10px);background:#fff;border:1px solid var(--line);border-radius:8px;
  box-shadow:0 14px 34px rgba(18,38,58,.12);list-style:none;margin:0;padding:8px 0;min-width:210px;z-index:60}
.sv-mnav li{margin:0}
.sv-mnav a{display:block;padding:10px 18px;font-size:14px;color:#3a3a3a}
.sv-mnav a:hover{background:var(--surface);color:var(--blue)}
@media(max-width:860px){ .sv-mnav{display:block} .sv-search{min-width:0;flex:1} }

/* ============ 内页（照原站：横幅图 + 分类条 + 三列大图） ============ */
.sv-banner{background:url(assets/inner-banner.jpg) center/cover no-repeat;padding:58px 0 50px;border-bottom:1px solid var(--line)}
.sv-banner .sv-container{display:flex;align-items:center;justify-content:space-between;gap:30px}
.sv-banner h1{font-size:36px;line-height:1.2;margin:0;font-weight:700;color:#5bafe5;max-width:820px}
.sv-banner .sv-crumb{margin:0;font-size:12.5px;color:#8b97a2;white-space:nowrap}
.sv-banner .sv-crumb a{color:#8b97a2}
.sv-banner .sv-crumb a:hover{color:var(--blue)}

.sv-strip{border-bottom:1px solid var(--line);background:#fff}
.sv-strip ul{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 46px;list-style:none;margin:0;padding:18px 0}
.sv-strip a{font-size:14.5px;color:#3a3a3a}
.sv-strip a:hover{color:var(--blue)}
.sv-strip a.on{color:var(--blue);font-weight:600}

.sv-pwrap{max-width:1140px;margin:0 auto;padding:0 24px 70px}
.sv-intro{padding:38px 0 6px}
.sv-intro p{font-size:15.5px;color:#4a4a4a;margin:0 0 15px;max-width:860px}
.sv-intro h2,.sv-intro h3{font-size:22px;margin:30px 0 12px;font-weight:700}
.sv-intro img{border-radius:6px;margin:8px 0}
.sv-intro .st-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:16px 0 24px}
.sv-intro .st-spec{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0 26px;border:1px solid var(--line)}
.sv-intro .st-spec th,.sv-intro .st-spec td{padding:11px 15px;text-align:left;border-bottom:1px solid var(--line)}
.sv-intro .st-spec th{background:var(--surface);font-weight:600;width:32%;color:#5c5c5c}
.sv-phead{border-bottom:1px solid var(--line);padding-bottom:14px;margin:34px 0 0}
.sv-phead h2{font-size:24px;font-weight:700;margin:0}

.sv-plist{display:grid;grid-template-columns:repeat(3,1fr);gap:46px 40px;list-style:none;margin:34px 0 0;padding:0}
.sv-plist li{text-align:center}
.sv-plist .img{background:#f5f6f7;overflow:hidden;display:block}
.sv-plist .img img{width:100%;height:100%;aspect-ratio:1/1;object-fit:cover;transition:transform .45s}
.sv-plist li:hover .img img{transform:scale(1.04)}
.sv-plist p{font-size:14.5px;color:#3a3a3a;margin:16px 0 4px;line-height:1.55;font-weight:400}
.sv-plist li:hover p{color:var(--blue)}
.sv-plist h4{font-size:12.5px;color:#9aa3ad;font-weight:500;margin:0}

.sv-pager{margin-top:34px;text-align:center;font-size:13.5px}
.sv-pager a,.sv-pager span{display:inline-block;padding:7px 13px;margin:0 3px;border:1px solid var(--line);border-radius:4px;color:#3a3a3a}
.sv-pager span.current{background:var(--blue);border-color:var(--blue);color:#fff}

@media(max-width:1024px){
  .sv-plist{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .sv-strip ul{gap:10px 26px}
}
@media(max-width:860px){
  .sv-banner{padding:34px 0 28px}
  .sv-banner .sv-container{flex-direction:column;align-items:flex-start;gap:10px}
  .sv-banner h1{font-size:25px}
  .sv-plist{grid-template-columns:1fr 1fr;gap:22px 16px}
  .sv-plist p{font-size:13px}
}

/* 导航下拉（PRODUCT 悬停显示产品线） */
.sv-has-sub{position:relative}
.sv-sub{position:absolute;left:50%;top:100%;transform:translateX(-50%);min-width:250px;background:#fff;
  border:1px solid var(--line);border-top:2px solid var(--blue);border-radius:0 0 8px 8px;
  box-shadow:0 18px 40px rgba(18,38,58,.12);list-style:none;margin:0;padding:8px 0;
  opacity:0;visibility:hidden;transition:.18s;z-index:50}
.sv-has-sub:hover .sv-sub{opacity:1;visibility:visible}
.sv-sub li{margin:0}
.sv-sub a{display:block;padding:9px 20px;font-size:13.5px;letter-spacing:0;text-transform:none;color:#4a4a4a}
.sv-sub a:after{display:none}
.sv-sub a:hover{background:#f2f9fe;color:var(--blue)}
@media(max-width:860px){ .sv-sub{display:none} }