/* ============================================================
   硕本科技官网 全站公共样式（index.php / product.php 共用）
   ============================================================ */
:root{
  --primary:#2B52E8;
  --primary-dark:#122FAE;
  --accent:#F5B60A;
  --ink:#111827;
  --ink-2:#4b5563;
  --ink-3:#9ca3af;
  --bg:#ffffff;
  --bg-soft:#f6f8fc;
  --line:#e5e7eb;
  --radius:14px;
  --shadow:0 4px 24px rgba(17,24,39,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI","Segoe UI Emoji","Apple Color Emoji","Noto Color Emoji",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:88px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-head .kicker{display:inline-block;font-size:13px;letter-spacing:4px;color:var(--primary);font-weight:600;margin-bottom:10px}
.sec-head h2{font-size:34px;font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--ink-2);font-size:16px}

header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;flex:none}
.logo .mark-svg{width:34px;height:38px;flex:none}
.logo small{display:block;font-size:10px;font-weight:400;color:var(--ink-3);letter-spacing:1px}
nav.menu{display:flex;gap:28px;margin:0 auto}
nav.menu a{font-size:15px;color:var(--ink-2);font-weight:500;padding:6px 0;border-bottom:2px solid transparent;transition:.2s}
nav.menu a:hover{color:var(--primary);border-color:var(--primary)}
.nav-right{display:flex;align-items:center;gap:18px;flex:none}
.nav-hot{display:flex;align-items:center;gap:10px;padding-right:18px;border-right:1px solid var(--line)}
.nav-hot .ph-ico{width:36px;height:36px;border-radius:50%;background:#eef2ff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;flex:none}
.nav-hot small{display:block;font-size:11px;color:var(--ink-3);line-height:1.3}
.nav-hot b{display:block;font-size:15.5px;color:var(--ink);line-height:1.3;letter-spacing:.3px}
.nav-cta{background:var(--primary);color:#fff !important;padding:9px 22px;border-radius:8px;font-weight:600;transition:.2s}
.nav-cta:hover{background:var(--primary-dark);border:none !important}
.burger{display:none;background:none;border:none;font-size:24px;color:var(--ink);cursor:pointer}

.hero{background:linear-gradient(150deg,#122FAE 0%,#2B52E8 45%,#3F6CFF 100%);color:#fff;padding:110px 0 120px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-140px;top:-140px;width:460px;height:460px;border-radius:50%;background:rgba(255,255,255,.07)}
.hero::before{content:"";position:absolute;left:-100px;bottom:-180px;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero .wrap{position:relative;z-index:1;text-align:center}
.hero h1{font-size:46px;line-height:1.25;font-weight:800;max-width:860px;margin:0 auto 20px}
.hero h1 span{color:#fbbf24}
.hero p{font-size:18px;opacity:.9;max-width:680px;margin:0 auto 40px}
.hero-pills{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.hero-pills span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:6px 13px;border-radius:30px;font-size:13.5px;font-weight:500;white-space:nowrap;flex:none}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{padding:13px 32px;border-radius:10px;font-size:16px;font-weight:600;transition:.2s;display:inline-block}
.btn-w{background:#fff;color:var(--primary)}
.btn-w:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.2)}
.btn-o{border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn-o:hover{background:rgba(255,255,255,.12)}
.hero-stats{display:flex;justify-content:center;gap:64px;margin-top:64px;flex-wrap:wrap}
.hero-stats .st b{font-size:32px;font-weight:800;display:block}
.hero-stats .st span{font-size:14px;opacity:.8}

.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);border-color:var(--primary);box-shadow:0 14px 34px rgba(26,86,219,.14)}
.card .ico{width:54px;height:54px;border-radius:13px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card-art{height:150px;border-radius:12px;overflow:hidden;margin-bottom:20px;box-shadow:0 4px 14px rgba(18,47,174,.16)}
.card-art svg{display:block;width:100%;height:100%}
.card h3{font-size:19px;margin-bottom:6px}
.card h3 a{color:inherit}
.card h3 a:hover{color:var(--primary)}
.card .tagline{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:14px}
.card p{font-size:14px;color:var(--ink-2);margin-bottom:14px}
.card .feats{margin-bottom:16px}
.card .feats li{font-size:13.5px;color:var(--ink-2);padding:4px 0 4px 22px;position:relative}
.card .feats li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}
.card .meta{margin-top:auto;border-top:1px dashed var(--line);padding-top:14px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--ink-3)}
.card .meta b{color:var(--ink);font-size:15px}
.fit{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.fit span{font-size:12px;background:var(--bg-soft);color:var(--ink-2);padding:3px 10px;border-radius:20px;border:1px solid var(--line)}
.detail{background:var(--bg-soft);border-radius:10px;padding:14px 16px;font-size:13px;color:var(--ink-2);margin-bottom:16px}
.detail b{color:var(--ink);display:block;margin-bottom:6px;font-size:13px}

.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:s}
.step{text-align:center;padding:28px 14px;background:var(--bg-soft);border-radius:var(--radius);position:relative;transition:.2s}
.step:hover{background:#eef3fd}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);display:block;font-size:26px;font-weight:800;color:var(--primary);opacity:.35;margin-bottom:8px}
.step h4{font-size:16px;margin-bottom:6px}
.step p{font-size:12.5px;color:var(--ink-2)}
.step .arrow{position:absolute;right:-16px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:18px;z-index:1}
.step:last-child .arrow{display:none}

.after{background:linear-gradient(150deg,#111827,#1f2937);color:#fff;border-radius:20px;padding:60px 50px;display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.after h2{font-size:28px;margin-bottom:14px}
.after .hotline{font-size:40px;font-weight:800;color:#fbbf24;letter-spacing:1px;margin:14px 0 6px}
.after p{color:#d1d5db;font-size:15px}
.after-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.after-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:20px}
.after-item b{display:block;margin-bottom:6px;font-size:15px}
.after-item span{font-size:13px;color:#9ca3af}

.faq{max-width:820px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;padding:20px 26px;transition:.2s}
details[open]{border-color:var(--primary);box-shadow:var(--shadow)}
summary{font-weight:600;font-size:16px;cursor:pointer;list-style:none;position:relative;padding-right:30px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:0;top:0;font-size:22px;color:var(--primary);font-weight:400}
details[open] summary::after{content:"−"}
.faq details.faq-extra{display:none}
.faq.expanded details.faq-extra{display:block}
.faq-more-btn{display:block;margin:26px auto 0;background:#fff;border:1.5px solid var(--primary);color:var(--primary);border-radius:30px;padding:11px 34px;font-size:14.5px;font-weight:600;cursor:pointer;transition:.2s;font-family:inherit}
.faq-more-btn:hover{background:var(--primary);color:#fff}
details .ans{margin-top:12px;font-size:14.5px;color:var(--ink-2)}

.about{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.about h2{text-align:left;margin-bottom:20px}
.about p{color:var(--ink-2);font-size:15.5px;margin-bottom:16px}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fact{background:var(--bg-soft);border-radius:12px;padding:20px;border:1px solid var(--line)}
.fact b{display:block;font-size:14px;margin-bottom:4px;color:var(--ink)}
.fact span{font-size:13px;color:var(--ink-2)}

.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:50px}
.contact-info h2{text-align:left;margin-bottom:20px}
.c-item{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.c-item .ico{width:44px;height:44px;flex:none;border-radius:10px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:20px}
.c-item b{display:block;font-size:15px}
.c-item span{font-size:14px;color:var(--ink-2)}
form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;outline:none;transition:.2s;background:#fff;color:var(--ink)}
form input:focus,form select:focus,form textarea:focus{border-color:var(--primary)}
form textarea{height:110px;resize:vertical;margin-bottom:16px}
form button{width:100%;background:var(--primary);color:#fff;border:none;padding:14px;border-radius:9px;font-size:16px;font-weight:600;cursor:pointer;transition:.2s}
form button:hover{background:var(--primary-dark)}
.form-tip{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:12px}
.sent-ok{text-align:center;padding:60px 0}
.sent-ok .big{font-size:44px}

footer{background:#0b1220;color:#9ca3af;padding:48px 0 28px;font-size:13.5px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;margin-bottom:30px}
.foot .logo{color:#fff}
.foot .logo small{color:#6b7280}
.foot-links{display:flex;gap:60px;flex-wrap:wrap}
.foot-links b{display:block;color:#e5e7eb;margin-bottom:10px;font-size:14px}
.foot-links a{display:block;padding:3px 0}
.foot-links a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;text-align:center;color:#6b7280}
.copy a{color:#6b7280}
.copy a:hover{color:#fff}

.float-cta{position:fixed;right:22px;bottom:26px;z-index:99;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.float-cta a{width:54px;height:54px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 6px 18px rgba(26,86,219,.4);transition:.2s}
.float-cta a:hover{transform:scale(1.08)}
.float-cta a.tel,.float-cta a.msg{width:200px;height:50px;border-radius:25px;padding:0 12px;gap:9px;font-size:17px;font-weight:700;letter-spacing:.5px;justify-content:center;max-width:calc(100vw - 44px)}
.float-cta a.tel{background:#F5B60A;box-shadow:0 6px 18px rgba(245,182,10,.45)}
.float-cta a.tel small{display:none}

/* ---- 产品详情页（product.php） ---- */
.crumb{font-size:13.5px;color:var(--ink-3);padding:20px 0 0}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--primary)}
.p-hero{background:linear-gradient(150deg,#122FAE 0%,#2B52E8 45%,#3F6CFF 100%);color:#fff;padding:52px 0 60px;position:relative;overflow:hidden}
.p-hero::after{content:"";position:absolute;right:-140px;top:-140px;width:460px;height:460px;border-radius:50%;background:rgba(255,255,255,.07)}
.p-hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.p-hero .kicker{display:inline-block;font-size:12.5px;letter-spacing:4px;font-weight:600;margin-bottom:10px;color:rgba(255,255,255,.75)}
.p-hero h1{font-size:38px;font-weight:800;line-height:1.25;margin-bottom:8px}
.p-hero .tagline{color:#fbbf24;font-weight:600;font-size:16.5px;margin-bottom:14px}
.p-hero p.desc{opacity:.92;font-size:16px;max-width:560px}
.p-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.p-meta span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:6px 14px;border-radius:30px;font-size:13.5px;white-space:nowrap}
.p-art{border-radius:16px;overflow:hidden;box-shadow:0 12px 32px rgba(0,0,0,.28);background:rgba(255,255,255,.06)}
.p-art svg{display:block;width:100%;height:auto}
.p-sec{padding:56px 0}
.p-sec .kicker{display:inline-block;font-size:12.5px;letter-spacing:4px;color:var(--primary);font-weight:600;margin-bottom:8px}
.p-sec h2{font-size:26px;font-weight:700;margin-bottom:18px}
.p-sec p.lead{color:var(--ink-2);font-size:15.5px;max-width:860px}
.p-feats{margin:6px 0 0}
.p-feats li{font-size:15.5px;color:var(--ink-2);padding:8px 0 8px 28px;position:relative}
.p-feats li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700;font-size:16px}
.p-detail{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:22px 26px;font-size:14.5px;color:var(--ink-2);max-width:860px}
.p-detail b{color:var(--ink);display:block;margin-bottom:8px;font-size:14.5px}
.p-cta{background:linear-gradient(150deg,#111827,#1f2937);color:#fff;border-radius:20px;padding:44px 48px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.p-cta h2{font-size:24px;font-weight:700;margin-bottom:6px}
.p-cta p{color:#d1d5db;font-size:14.5px}
.p-cta .hotline{font-size:28px;font-weight:800;color:#fbbf24;letter-spacing:.5px;margin-top:10px}
.p-cta .btn-w{background:#fff;color:var(--primary-dark)}
.p-other-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.p-other-grid a{display:block;background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-size:14.5px;font-weight:600;color:var(--ink);transition:.2s}
.p-other-grid a:hover{border-color:var(--primary);color:var(--primary)}
.p-404{text-align:center;padding:90px 24px}
.p-404 h1{font-size:44px;margin-bottom:12px}
.p-404 p{color:var(--ink-2);margin-bottom:26px}
.p-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.p-adv{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:22px;transition:.2s}
.p-adv:hover{border-color:var(--primary);transform:translateY(-3px)}
.p-adv .ico{font-size:24px;margin-bottom:10px}
.p-adv b{display:block;margin-bottom:6px;font-size:15px}
.p-adv span{font-size:13.5px;color:var(--ink-2)}
.p-faq{max-width:860px;margin:0 auto}
.p-faq details{background:#fff}

/* ---- 资讯栏目（news.php / article.php） ---- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);border-color:var(--primary)}
.news-card .n-cat{display:inline-block;font-size:12px;color:var(--primary);background:#eef2ff;border-radius:20px;padding:2px 12px;margin-bottom:12px;font-weight:600;align-self:flex-start}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.news-card h3 a{color:inherit}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{font-size:13.5px;color:var(--ink-2);flex:1;margin-bottom:14px}
.news-card .n-meta{border-top:1px dashed var(--line);padding-top:12px;font-size:12.5px;color:var(--ink-3);display:flex;justify-content:space-between;align-items:center}
.news-card .n-meta a{color:var(--primary);font-weight:600}
.article-wrap{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:44px 48px}
.a-meta{display:flex;gap:14px;align-items:center;font-size:13px;color:var(--ink-3);margin:8px 0 6px;flex-wrap:wrap}
.a-meta .n-cat{display:inline-block;font-size:12px;color:var(--primary);background:#eef2ff;border-radius:20px;padding:2px 12px;font-weight:600}
.article-body h2{font-size:21px;margin:30px 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:var(--ink-2);margin-bottom:14px}
.article-body ul{margin:0 0 16px}
.article-body li{font-size:15px;color:var(--ink-2);padding:5px 0 5px 24px;position:relative}
.article-body li::before{content:"•";position:absolute;left:6px;color:var(--primary);font-weight:700}
.article-body a{color:var(--primary);font-weight:600}
.article-body a:hover{text-decoration:underline}
.article-body .note{font-size:13px;color:var(--ink-3);background:var(--bg-soft);border-radius:8px;padding:10px 14px}
.a-rel{background:linear-gradient(150deg,#122FAE 0%,#2B52E8 45%,#3F6CFF 100%);color:#fff;border-radius:var(--radius);padding:26px 30px;margin-top:30px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.a-rel b{font-size:17px;display:block;margin-bottom:4px}
.a-rel span{font-size:13.5px;opacity:.85}
.a-rel a{background:#fff;color:var(--primary);padding:10px 22px;border-radius:9px;font-weight:600;white-space:nowrap}
@media(max-width:960px){.news-grid{grid-template-columns:1fr 1fr}.article-wrap{padding:30px 24px}}
@media(max-width:600px){.news-grid{grid-template-columns:1fr}.article-wrap{padding:26px 18px}.article-body h2{font-size:19px}}

@media(max-width:1180px){
  .nav-hot small{display:none}
  .nav-hot b{font-size:14px}
  .nav-hot{padding-right:12px;gap:8px}
  nav.menu{gap:20px}
  .p-other-grid{grid-template-columns:repeat(3,1fr)}
  .p-adv-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:960px){
  .nav-hot{display:none}
  .g3{grid-template-columns:1fr 1fr}
  .about,.contact,.after{grid-template-columns:1fr}
  .step .arrow{display:none}
  .hero h1{font-size:34px}
  nav.menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:20px 24px;gap:14px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  nav.menu.open{display:flex}
  .burger{display:block}
  section{padding:64px 0}
  .p-hero .wrap{grid-template-columns:1fr;gap:32px}
  .p-hero h1{font-size:30px}
  .p-other-grid{grid-template-columns:1fr 1fr}
  .p-cta{padding:36px 28px}
}
@media(max-width:600px){
  .g3,.steps,.frow,.after-list,.about-facts{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .hero p{font-size:15px}
  .sec-head h2{font-size:26px}
  .after{padding:40px 26px}
  .p-hero h1{font-size:26px}
  .p-other-grid{grid-template-columns:1fr}
  .p-sec{padding:44px 0}
  .p-sec h2{font-size:22px}
  .p-adv-grid{grid-template-columns:1fr}
}