:root{--blue:#1463ff;--blue2:#0057e7;--cyan:#34c8ff;--navy:#071d42;--text:#0b1f44;--muted:#64748b;--line:#e6eefc;--bg:#f7fbff;--shadow:0 16px 38px rgba(20,99,255,.10);--radius:22px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 48px));margin:auto}.nav{height:72px;position:sticky;top:0;z-index:99;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(1240px,calc(100% - 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i:after{content:"";position:absolute;right:0;top:0;width:8px;height:8px;border-radius:50%;background:#27d28d}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}.grid-6{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 28px rgba(10,38,85,.07);padding:28px;transition:.25s}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.icon{width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-size:27px;font-weight:950;margin-bottom:18px}.icon.soft-icon{background:#eef5ff;color:var(--blue);box-shadow:none;margin:0 auto 14px}.card 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ul{list-style:none}footer li{margin:9px 0}.social{display:flex;gap:10px;margin-top:18px}.social span{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.25)}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;text-align:center;color:#9cadaf;font-size:13px}.page{display:none}.page.active{display:block}.mock{height:360px;border-radius:32px;background:linear-gradient(135deg,#edf6ff,#fff);border:1px solid #dceaff;box-shadow:var(--shadow);position:relative;overflow:hidden}.mock:before{content:"";position:absolute;width:320px;height:220px;right:48px;top:58px;background:#fff;border:1px solid #dceaff;border-radius:24px;box-shadow:0 12px 28px rgba(10,38,85,.07)}.mock:after{content:"";position:absolute;width:170px;height:250px;right:18px;bottom:25px;background:linear-gradient(180deg,#092655,#fff);border-radius:28px}.mock .big-icon{position:absolute;left:80px;bottom:60px;width:80px;height:80px;border-radius:24px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:950}.mock span{display:block;position:relative;left:58px;top:58px;height:18px;border-radius:999px;background:#dbeaff;margin:14px 0;width:210px}.mock span:first-child{width:160px;background:var(--blue)}.modal{position:fixed;inset:0;background:rgba(6,19,46,.58);display:none;align-items:center;justify-content:center;z-index:999;padding:20px}.modal.active{display:flex}.modal-card{width:min(560px,100%);background:#fff;border-radius:26px;padding:30px;box-shadow:0 28px 70px rgba(5,20,50,.28)}.form-grid{display:grid;gap:14px}.form-grid label{font-size:13px;font-weight:900;color:#344866}.form-grid input,.form-grid textarea,.form-grid select{width:100%;border:1px solid #dce7f7;border-radius:12px;padding:13px 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1fr;gap:24px;padding:26px}.admin-side{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 12px 28px rgba(10,38,85,.07);height:max-content;position:sticky;top:98px}.admin-side button{width:100%;text-align:left;background:transparent;border:0;padding:12px 14px;border-radius:12px;font-weight:900;color:#40506a;cursor:pointer}.admin-side button.active,.admin-side button:hover{background:#eef5ff;color:var(--blue)}.admin-main{display:grid;gap:20px}.admin-table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line)}.admin-table th,.admin-table td{padding:14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}.admin-table th{background:#f8fbff;color:#42526c}.admin-actions{display:flex;gap:8px;flex-wrap:wrap}.mini-btn{border:1px solid #d9e5f7;background:#fff;border-radius:9px;padding:8px 10px;font-weight:800;cursor:pointer;color:#29405f}.mini-btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.mini-btn.danger{color:#e11d48;background:#fff1f2;border-color:#fecdd3}.admin-login{max-width:460px;margin:90px auto;background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:32px}.json-area{min-height:240px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}.hint{background:#f8fbff;border:1px solid var(--line);padding:14px;border-radius:14px;color:#60708b;font-size:14px}@media(max-width:1000px){.links{display:none}.hero-grid,.admin-shell{grid-template-columns:1fr}.grid-3,.grid-4,.grid-5,.grid-6,.footer-grid,.timeline,.grid-2{grid-template-columns:1fr 1fr}.process{grid-template-columns:repeat(2,minmax(0,1fr))}.process:before{left:60px;right:60px}.visual{display:none}.admin-side{position:static}}@media(max-width:640px){.container,.nav-inner{width:calc(100% - 28px)}h1{font-size:36px}.lead{font-size:20px}.section{padding:56px 0}.grid-3,.grid-4,.grid-5,.grid-6,.footer-grid,.timeline,.arch-row,.grid-2{grid-template-columns:1fr}.process{grid-template-columns:1fr}.process:before,.timeline:before{display:none}.step-card{min-height:auto}.actions,.cta{flex-direction:column;align-items:flex-start}.mock{height:260px}.admin-table{display:block;overflow:auto}.hero{padding:52px 0}.admin-shell{padding:14px}.admin-header{padding:0 16px}}
.breadcrumb-wrap{padding:18px 0 0;background:linear-gradient(180deg,#f8fbff 0%,rgba(248,251,255,0) 100%)}
.seo-breadcrumbs{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.seo-breadcrumbs a{color:var(--blue);font-weight:700}
.seo-faq{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;font-weight:800;list-style:none;position:relative;padding-right:24px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:'+';position:absolute;right:0;top:0;color:var(--blue);font-size:20px;line-height:1}
.faq-item[open] summary:after{content:'-'}
.faq-item p{margin-top:12px;color:var(--muted)}
.not-found{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:48px 0;background:linear-gradient(180deg,#f7fbff 0%,#ffffff 100%)}
.not-found-card{width:min(720px,calc(100% - 48px));background:#fff;border:1px solid var(--line);border-radius:28px;padding:48px 36px;text-align:center;box-shadow:var(--shadow)}
.not-found-code{font-size:72px;line-height:1;font-weight:900;color:var(--blue);margin-bottom:14px}
.not-found-card p{color:var(--muted);margin-bottom:20px}
@media (max-width: 768px){.not-found-card{padding:32px 22px}.not-found-code{font-size:56px}}


.case-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.case-meta span,.case-detail-tags span{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:#eef5ff;border:1px solid #dbe9ff;color:var(--blue);font-size:12px;font-weight:800}
.case-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.case-back-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:900;margin-bottom:18px}
.case-detail-hero{background:linear-gradient(180deg,#f7fbff 0,#fff 72%)}
.case-detail-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.case-detail-copy h1{margin-bottom:18px}
.case-detail-tags{display:flex;gap:12px;flex-wrap:wrap}
.case-detail-visual{background:#fff;border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:var(--shadow)}
.case-detail-visual img{display:block;width:100%;height:auto;aspect-ratio:2/1;object-fit:cover;background:#fff}
.case-detail-visual-note{padding:14px 18px;background:#f8fbff;color:#60708b;font-size:14px;border-top:1px solid var(--line)}
.case-detail-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-detail-metric{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 12px 28px rgba(10,38,85,.06)}
.case-detail-metric strong{display:block;font-size:36px;line-height:1;color:var(--blue);margin-bottom:10px}
.case-detail-metric span{color:#60708b;font-size:14px;font-weight:800}
.case-gallery-section{background:linear-gradient(180deg,#fff 0,#f8fbff 100%)}
.case-gallery-carousel{width:min(980px,100%);margin:0 auto;display:grid;gap:18px}
.case-gallery-frame{position:relative}
.case-gallery-viewport{overflow-x:auto;overflow-y:hidden;scroll-behavior:smooth;scroll-snap-type:x mandatory;scrollbar-width:none;padding:2px 0 8px}
.case-gallery-viewport::-webkit-scrollbar{display:none}
.case-gallery-track{display:flex;align-items:stretch;gap:20px}
.case-gallery-track.is-centered{justify-content:center}
.case-gallery-card{position:relative;display:grid;grid-template-rows:auto minmax(24px,auto);gap:0;flex:0 0 calc((100% - 40px)/3);padding:0;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 18px 36px rgba(10,38,85,.08);overflow:hidden;text-align:left;cursor:zoom-in;scroll-snap-align:start}
.case-gallery-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.case-gallery-card:disabled{cursor:default}
.case-gallery-card:disabled:hover{transform:none;box-shadow:0 18px 36px rgba(10,38,85,.08)}
.case-gallery-thumb{display:block;aspect-ratio:2/3;overflow:hidden;background:#fff}
.case-gallery-thumb img{display:block;width:100%;height:100%;object-fit:cover;background:#fff}
.case-gallery-caption{display:block;min-height:46px;padding:12px 16px 16px;color:#5d6d87;font-size:14px;line-height:1.55}
.case-gallery-caption strong{display:block;color:var(--text);font-size:16px;line-height:1.35;margin-bottom:4px}
.case-gallery-caption span{display:block}
.chat-showcase-empty{display:grid;place-items:center;background:linear-gradient(135deg,#eff6ff,#fff)}
.chat-showcase-empty>span{font-size:52px;line-height:1}
.case-gallery-carousel-nav{position:absolute;top:50%;z-index:3;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.55);background:rgba(7,29,66,.68);color:#fff;font-size:34px;line-height:1;transform:translateY(-50%);cursor:pointer;backdrop-filter:blur(8px)}
.case-gallery-carousel-nav.prev{left:16px}
.case-gallery-carousel-nav.next{right:16px}
.case-gallery-carousel-nav:hover{background:rgba(7,29,66,.82)}
.case-gallery-zoom{position:absolute;right:16px;top:16px;padding:8px 12px;border-radius:999px;background:rgba(7,29,66,.72);color:#fff;font-size:12px;font-weight:800;backdrop-filter:blur(8px)}
.case-highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-highlight-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 12px 28px rgba(10,38,85,.06);font-weight:800;color:#29405f}
.case-story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-detail-block{background:#fff;border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:0 12px 28px rgba(10,38,85,.06)}
.case-detail-block.accent{background:linear-gradient(180deg,#f7fbff 0,#fff 100%)}
.case-detail-block h2{font-size:26px;margin-bottom:14px}
.case-detail-block p{color:#5d6d87;margin-top:10px}
.thumb-media{aspect-ratio:2/1;height:auto;overflow:hidden;border-bottom:1px solid var(--line)}
.thumb-media img{display:block;width:100%;height:100%;object-fit:cover}
.case-image-modal-card{width:min(1100px,100%);padding:24px}
.case-image-modal-tools{display:flex;align-items:center;gap:14px}
.case-image-modal-counter{font-size:13px;font-weight:900;color:#4f6380}
.case-image-modal-body{position:relative;background:#081a3d;border-radius:22px;overflow:hidden;display:grid;grid-template-columns:72px 1fr 72px;align-items:center;min-height:70vh}
.case-image-modal-body img{display:block;max-width:100%;max-height:70vh;margin:auto;object-fit:contain}
.case-image-nav{width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;font-size:34px;line-height:1;cursor:pointer;justify-self:center}
.case-image-nav:hover{background:rgba(255,255,255,.18)}
@media (max-width: 1000px){.case-detail-hero-grid,.case-detail-metrics,.case-highlight-grid,.case-story-grid{grid-template-columns:1fr}}
@media (max-width: 760px){.case-gallery-track{gap:16px}.case-gallery-card{flex-basis:calc((100% - 16px)/2)}}
@media (max-width: 520px){.case-gallery-card{flex-basis:100%}.case-gallery-carousel{width:min(360px,100%)}}
@media (max-width: 640px){.case-actions,.case-detail-tags{gap:10px}.case-detail-block{padding:22px}.case-detail-metric strong{font-size:30px}.case-image-modal-body{grid-template-columns:48px 1fr 48px;min-height:56vh}.case-image-nav{width:38px;height:38px;font-size:28px}.case-gallery-zoom{right:12px;top:12px}.case-gallery-carousel-nav{width:38px;height:38px;font-size:28px}}