/* ===== S1 Hero 满屏视频 ===== */
.hero{position:relative;height:calc(100svh - 120px);min-height:660px;overflow:hidden;background:#0a1c3c;display:flex;align-items:flex-end}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,16,38,.9) 0%,rgba(10,26,56,.68) 40%,rgba(13,46,94,.34) 75%,rgba(13,46,94,.4) 100%)}
.hero .hwrap{position:relative;z-index:2;width:100%;max-width:1400px;margin:0 auto;padding:0 32px 9vh;color:#fff}
.hero .hk{display:inline-block;font-size:14px;letter-spacing:6px;color:#cfe0f8;border-left:4px solid var(--orange);padding-left:14px;margin-bottom:22px;animation:fadeUp .9s ease both}
.hero h1{font-size:clamp(34px,4.6vw,60px);letter-spacing:3px;line-height:1.2;font-weight:700;color:#fff;text-shadow:0 3px 28px rgba(0,0,0,.5);animation:fadeUp .9s .1s ease both}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#ffc499,#fe6a00);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .hsub{font-size:clamp(15px,1.5vw,19px);color:#dbe7fa;margin-top:18px;letter-spacing:1.5px;max-width:760px;line-height:1.9;animation:fadeUp .9s .2s ease both}
.hero .hbtns{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px;animation:fadeUp .9s .3s ease both}
.hero .hquals{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:42px;animation:fadeUp .9s .4s ease both}
.hero .hquals img{height:30px;filter:drop-shadow(0 4px 12px rgba(0,0,0,.4))}
.hero .hquals em{font-style:normal;font-size:13px;color:#b8cdf0;letter-spacing:2px}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
/* ===== S1 Hero 满屏视频 ===== */
.split{display:grid;grid-template-columns:59% 41%;align-items:stretch}
.split .simg{position:relative;overflow:hidden;min-height:380px;background:linear-gradient(135deg,#123364,#225bb2 60%,#3a7bd5)}
.split .simg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.22,.8,.36,1)}
.split:hover .simg img{transform:scale(1.04)}
.split .simg .stag{position:absolute;left:0;bottom:36px;background:rgba(13,46,94,.88);color:#fff;font-size:14px;letter-spacing:2px;padding:12px 26px;border-radius:0 8px 8px 0;backdrop-filter:blur(6px)}
.split .stxt{background:#fff;display:flex;flex-direction:column;justify-content:center;padding:72px 68px}
.split .stxt .kicker{font-size:13px;letter-spacing:6px;color:var(--navy);margin-bottom:14px}
.split .stxt h2{font-size:clamp(28px,2.8vw,40px);color:var(--ink);letter-spacing:1.5px;line-height:1.3;font-weight:700}
.split .stxt .sdesc{color:var(--mut);margin-top:18px;font-size:16px;line-height:1.95}
.split .slist{margin-top:26px;display:grid;gap:12px}
.split .slist a{display:flex;align-items:center;gap:14px;padding:15px 18px;border:1px solid var(--line);border-radius:12px;font-size:15.5px;color:var(--ink);font-weight:600;transition:all .3s;background:#fff}
.split .slist a i{width:34px;height:34px;border-radius:9px;background:var(--tint);display:flex;align-items:center;justify-content:center;color:var(--navy);font-style:normal;font-size:15px;flex-shrink:0;transition:all .3s}
.split .slist a::after{content:"›";margin-left:auto;color:#b9c6dc;font-size:17px;transition:all .3s}
.split .slist a:hover{border-color:rgba(34,91,178,.4);box-shadow:var(--sh);transform:translateX(6px);color:var(--navy)}
.split .slist a:hover i{background:var(--ograd);color:#fff}
.split .slist a:hover::after{color:var(--orange)}
.split .stxt .btn{margin-top:32px;align-self:flex-start}
/* ===== S3 检测领域大图卡 ===== */
.fcard{position:relative;border-radius:var(--rad);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,#123364,#225bb2 55%,#3a7bd5);box-shadow:var(--sh);display:block;transition:transform .45s cubic-bezier(.22,.8,.36,1),box-shadow .45s}
.fcard:hover{transform:translateY(-8px);box-shadow:var(--sh2)}
.fcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,.8,.36,1),opacity .5s}
.fcard:hover img{transform:scale(1.07)}
.fcard .fo{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,20,44,.1) 20%,rgba(8,20,44,.86) 100%)}
.fcard .fic{position:absolute;left:26px;bottom:78px;width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;transition:all .4s}
.fcard .fic svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:1.8}
.fcard:hover .fic{background:var(--ograd);border-color:transparent;transform:translateY(-4px)}
.fcard .ft{position:absolute;left:26px;right:26px;bottom:26px;color:#fff}
.fcard .ft b{display:block;font-size:21px;letter-spacing:2px;font-weight:600}
.fcard .ft span{display:block;font-size:13.5px;color:#c8d8f2;margin-top:6px;opacity:0;max-height:0;overflow:hidden;transition:all .45s}
.fcard:hover .ft span{opacity:1;max-height:56px}
.fcard .fno{position:absolute;top:18px;right:22px;font-size:15px;color:rgba(255,255,255,.55);letter-spacing:2px;font-style:italic}
/* ===== S4 深蓝优势带 ===== */
.advband{position:relative;overflow:hidden}
.advband::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(800px 500px at 80% 20%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(800px 500px at 80% 20%,#000 30%,transparent 75%)}
.advband .wrap{position:relative;z-index:2}
.advgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.adv{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:44px 32px;text-align:center;transition:all .4s;position:relative;overflow:hidden}
.adv::before{content:"";position:absolute;top:0;left:24%;right:24%;height:3px;border-radius:0 0 6px 6px;background:var(--ograd);transform:scaleX(0);transition:transform .4s}
.adv:hover{background:rgba(255,255,255,.09);transform:translateY(-6px)}
.adv:hover::before{transform:scaleX(1)}
.adv .aic{width:64px;height:64px;margin:0 auto 20px;border-radius:18px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center}
.adv .aic svg{width:30px;height:30px;stroke:#ffb27a;fill:none;stroke-width:1.8}
.adv h3{font-size:19px;color:#fff;letter-spacing:2px}
.adv p{font-size:14.5px;color:#a9c3e8;margin-top:12px;line-height:1.85}
/* ===== S5 栏目切换 ===== */
.ttabs{display:grid;grid-template-columns:320px 1fr;gap:30px;align-items:stretch}
.ttabs>input{display:none}
.tleft{display:flex;flex-direction:column;gap:9px}
.tleft label{display:flex;align-items:center;padding:15px 22px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;transition:all .3s}
.tleft label i{width:9px;height:9px;border-radius:50%;background:#cbd9ef;margin-right:14px;flex-shrink:0;transition:all .3s}
.tleft label b{font-weight:400;color:#b9c6dc;margin-left:auto;transition:all .3s}
.tleft label:hover{color:var(--navy);border-color:rgba(34,91,178,.4);transform:translateX(5px)}
#tt1:checked ~ .tleft label[for=tt1],#tt2:checked ~ .tleft label[for=tt2],#tt3:checked ~ .tleft label[for=tt3],#tt4:checked ~ .tleft label[for=tt4],#tt5:checked ~ .tleft label[for=tt5],#tt6:checked ~ .tleft label[for=tt6],#tt7:checked ~ .tleft label[for=tt7],#tt8:checked ~ .tleft label[for=tt8],#tt9:checked ~ .tleft label[for=tt9],#tt10:checked ~ .tleft label[for=tt10],#tt11:checked ~ .tleft label[for=tt11]{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 24px rgba(34,91,178,.35)}
#tt1:checked ~ .tleft label[for=tt1] i,#tt2:checked ~ .tleft label[for=tt2] i,#tt3:checked ~ .tleft label[for=tt3] i,#tt4:checked ~ .tleft label[for=tt4] i,#tt5:checked ~ .tleft label[for=tt5] i,#tt6:checked ~ .tleft label[for=tt6] i,#tt7:checked ~ .tleft label[for=tt7] i,#tt8:checked ~ .tleft label[for=tt8] i,#tt9:checked ~ .tleft label[for=tt9] i,#tt10:checked ~ .tleft label[for=tt10] i,#tt11:checked ~ .tleft label[for=tt11] i{background:#ffb27a}
#tt1:checked ~ .tleft label[for=tt1] b,#tt2:checked ~ .tleft label[for=tt2] b,#tt3:checked ~ .tleft label[for=tt3] b,#tt4:checked ~ .tleft label[for=tt4] b,#tt5:checked ~ .tleft label[for=tt5] b,#tt6:checked ~ .tleft label[for=tt6] b,#tt7:checked ~ .tleft label[for=tt7] b,#tt8:checked ~ .tleft label[for=tt8] b,#tt9:checked ~ .tleft label[for=tt9] b,#tt10:checked ~ .tleft label[for=tt10] b,#tt11:checked ~ .tleft label[for=tt11] b{color:rgba(255,255,255,.75)}
.tright{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh);padding:8px 36px 18px;min-height:640px}
.tpanel{display:none;animation:tfade .5s ease}
@keyframes tfade{from{opacity:0;transform:translateX(14px)}to{opacity:1;transform:translateX(0)}}
#tt1:checked ~ .tright .tpanel:nth-of-type(1),#tt2:checked ~ .tright .tpanel:nth-of-type(2),#tt3:checked ~ .tright .tpanel:nth-of-type(3),#tt4:checked ~ .tright .tpanel:nth-of-type(4),#tt5:checked ~ .tright .tpanel:nth-of-type(5),#tt6:checked ~ .tright .tpanel:nth-of-type(6),#tt7:checked ~ .tright .tpanel:nth-of-type(7),#tt8:checked ~ .tright .tpanel:nth-of-type(8),#tt9:checked ~ .tright .tpanel:nth-of-type(9),#tt10:checked ~ .tright .tpanel:nth-of-type(10),#tt11:checked ~ .tright .tpanel:nth-of-type(11){display:block}
.tpanel .th{display:flex;align-items:center;justify-content:space-between;padding:22px 0 14px;border-bottom:2px solid var(--ink)}
.tpanel .th b{font-size:19px;color:var(--ink);letter-spacing:1px;position:relative;padding-left:14px}
.tpanel .th b::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:5px;border-radius:3px;background:var(--ograd)}
.tpanel .th a{font-size:14px;color:var(--navy)}
.tmore{padding:14px 0 4px;font-size:13px;color:var(--mut);letter-spacing:2px;display:flex;align-items:center;gap:8px}
.tmore::before{content:"";width:18px;height:1px;background:var(--orange)}
.tmore-list{display:flex;flex-direction:column;padding:2px 0 14px;border-bottom:1px dashed var(--line)}
.tmore-list a{display:flex;align-items:center;gap:10px;padding:8.5px 2px;font-size:14.5px;color:var(--txt);transition:all .25s}
.tmore-list a::before{content:"›";color:var(--orange);font-weight:700;flex-shrink:0}
.tmore-list a:hover{color:var(--navy);padding-left:9px}
.tmore-list .tm-d{margin-left:auto;font-size:12.5px;color:#93a1b8;font-variant-numeric:tabular-nums}
.tgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:20px 0 8px}
.tw-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .35s,box-shadow .35s;box-shadow:0 5px 14px rgba(13,46,94,.05)}
.tw-card:hover{transform:translateY(-5px);box-shadow:var(--sh2)}
.tw-card a{display:block}
.tw-img{display:block;aspect-ratio:16/10;background:linear-gradient(135deg,var(--tint),#d5e4f8);overflow:hidden}
.tw-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tw-card:hover .tw-img img{transform:scale(1.06)}
.tw-b{display:block;padding:13px 15px 15px}
.tw-b h4{font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:45px}
.tw-b .tw-d{display:block;font-size:12px;color:#93a1b8;margin-top:8px;font-variant-numeric:tabular-nums}
/* ===== S6 流程 ===== */
.steps{counter-reset:st;display:grid;grid-template-columns:repeat(5,1fr);gap:22px;padding-top:24px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:36px 22px 30px;text-align:center;position:relative;transition:transform .4s,box-shadow .4s;box-shadow:var(--sh);overflow:visible}
.step::before{counter-increment:st;content:counter(st);position:absolute;top:-17px;left:50%;transform:translateX(-50%);width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;font-weight:700;line-height:36px;font-size:15px;box-shadow:0 8px 16px rgba(34,91,178,.4);z-index:2}
.step::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--ograd);transform:scaleX(0);transition:transform .35s;transform-origin:left}
.step:hover{transform:translateY(-7px);box-shadow:var(--sh2)}
.step:hover::after{transform:scaleX(1)}
.step h3{font-size:17.5px;color:var(--ink);margin-bottom:9px;font-weight:600}
.step p{font-size:13.5px;color:var(--mut)}
/* ===== S8 FAQ 两栏+配图 ===== */
.faqwrap{display:grid;grid-template-columns:400px 1fr;gap:56px;align-items:start}
.faqvisual{position:relative;border-radius:22px;overflow:hidden;aspect-ratio:4/5;background:linear-gradient(160deg,var(--deep),#225bb2 60%,#3a7bd5);box-shadow:var(--sh2)}
.faqvisual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.faqvisual .fvc{position:absolute;left:26px;bottom:24px;right:26px;color:#fff;z-index:2}
.faqvisual .fvc b{display:block;font-size:19px;letter-spacing:1px}
.faqvisual .fvc span{display:block;font-size:13.5px;color:#cfe0f8;margin-top:6px}
.faqvisual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(8,20,44,.85) 100%)}
.faq .faqhead{margin-bottom:24px}
.faq .faqhead b{display:block;font-size:21px;color:var(--ink);letter-spacing:1px}
.faq .faqhead span{display:block;font-size:14px;color:var(--mut);margin-top:8px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:16px;overflow:hidden;transition:box-shadow .3s;box-shadow:var(--sh)}
.faq details[open]{box-shadow:var(--sh2);border-color:rgba(34,91,178,.3)}
.faq summary{cursor:pointer;padding:21px 58px 21px 66px;font-size:16.5px;font-weight:600;color:var(--ink);position:relative;list-style:none}
.faq summary::before{content:"Q";position:absolute;left:18px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:background .3s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--orange);font-weight:300;transition:transform .3s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details[open] summary::before{background:var(--ograd)}
.faq .fa{padding:0 24px 22px 66px;font-size:15.5px;color:var(--txt);line-height:1.9}
.faq .morefaq{display:inline-block;margin-top:4px;font-size:14.5px;color:var(--navy);font-weight:600}
/* ===== S9 CTA ===== */
.ctaband{position:relative;border-radius:22px;overflow:hidden;background:var(--deep);padding:80px 70px;display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:0 30px 70px rgba(13,46,94,.35)}
.ctaband>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32}
.ctaband .cveil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,20,44,.9) 0%,rgba(13,46,94,.72) 60%,rgba(13,46,94,.6) 100%)}
.ctaband .ctx{position:relative;z-index:2}
.ctaband h2{font-size:clamp(24px,2.8vw,36px);letter-spacing:2px;color:#fff}
.ctaband p{color:#c3d6f2;margin-top:14px;font-size:16px}
.ctaband .chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;position:relative;z-index:2}
.ctaband .chips span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:99px;padding:8px 18px;font-size:13.5px;color:#eaf2ff;backdrop-filter:blur(6px)}
.ctaband .chips span svg{width:16px;height:16px;stroke:#ffb27a;fill:none;stroke-width:2}
.ctaband .btns{display:flex;gap:16px;flex-wrap:wrap;position:relative;z-index:2}
.ctaband .btn svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2}
.g4+.grid{margin-top:26px}
.mt26{margin-top:26px}
/* ===== 荣誉证书墙（无缝横向滚动） ===== */
.cert-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.cm-track{display:flex;gap:20px;width:max-content;animation:cmscroll 60s linear infinite}
.cert-marquee:hover .cm-track{animation-play-state:paused}
@keyframes cmscroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.cm-track .cert-zoom{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px;box-shadow:var(--sh);transition:transform .35s,box-shadow .35s}
.cm-track .cert-zoom:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.cm-track .cert-zoom img{display:block;height:250px;width:auto}
.cert-note{margin-top:30px;text-align:center;font-size:14px;color:var(--mut)}
.cert-note a{color:var(--orange);font-weight:600}
/* 新闻卡（sitande式：图+标题+摘要+大日期） */
.ncard{background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sh);transition:transform .4s cubic-bezier(.22,.8,.36,1),box-shadow .4s;display:flex;flex-direction:column;position:relative}
.ncard:hover{transform:translateY(-8px);box-shadow:var(--sh2)}
.ncard a{display:flex;flex-direction:column;flex:1}
.ncard .nimg{display:block;aspect-ratio:16/8;background:linear-gradient(135deg,var(--tint),#d5e4f8);overflow:hidden;position:relative}
.ncard .nimg img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.22,.8,.36,1)}
.ncard:hover .nimg img{transform:scale(1.06)}
.ncard .nimg img[src=""]{visibility:hidden}
.ncard .nbody{display:flex;flex-direction:column;flex:1;padding:20px 22px 18px;position:static}
.ncard .nbody h3{font-size:16.5px;color:var(--ink);font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ncard .nbody p{font-size:13.5px;color:var(--mut);margin-top:9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7}
.ncard .ndate{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:baseline;justify-content:space-between}
.ncard .ndate b{font-size:26px;font-weight:700;color:var(--ink);letter-spacing:1px;font-variant-numeric:tabular-nums;transition:color .3s}
.ncard:hover .ndate b{color:var(--orange)}
.ncard .ndate i{font-style:normal;font-size:13.5px;color:#93a1b8;font-variant-numeric:tabular-nums}
.mt26{margin-top:26px}
@media (max-width:1299px){.g4{grid-template-columns:repeat(3,1fr)}}
@media (max-width:1023px){.split{grid-template-columns:1fr}.split .simg{min-height:340px}.split .stxt{padding:52px 32px}.advgrid{grid-template-columns:1fr 1fr}.ttabs{grid-template-columns:1fr}.tleft{flex-direction:row;flex-wrap:wrap}.tleft label{padding:11px 16px;font-size:14px}.tleft label i{display:none}.tright{min-height:0;padding:6px 22px 12px}.g4,.g3{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr);row-gap:38px}.ctaband{flex-direction:column;text-align:center;padding:56px 30px}.ctaband .chips{justify-content:center}.faqwrap{grid-template-columns:1fr}.faqvisual{max-width:520px}}
@media (max-width:767px){.hero{height:auto;min-height:0;padding:90px 0 70px}.hero .hwrap{padding:0 20px}.hero .hquals img{height:24px}.advgrid{grid-template-columns:1fr}.g4,.g3{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.tgrid{grid-template-columns:1fr 1fr;gap:12px}.fcard .ft b{font-size:18px}.ctaband .chips{flex-direction:column;align-items:center;gap:8px}}