:root{--ink:#173350;--navy:#143a67;--blue:#246cde;--blue-deep:#1857bc;--muted:#60758e;--line:#dbe6f0;--pale:#f4f8fc;--cyan:#e7f6fb;--white:#fff;--shadow:0 22px 60px rgba(21,58,102,.1);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;min-width:320px}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
button:disabled{cursor:not-allowed}
[hidden]{display:none!important}
:focus-visible{outline:3px solid #4e9afa;outline-offset:3px}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.site-header{height:76px;background:#fff;border-bottom:1px solid #edf1f6;position:sticky;top:0;z-index:20}
.header-inner{height:100%;display:flex;align-items:center;gap:42px}
.brand,.footer-brand{display:inline-flex;align-items:center;gap:11px;font-size:23px;font-weight:800;letter-spacing:.03em;line-height:1.05;white-space:nowrap}
.brand small,.footer-brand small{display:block;font-size:11px;letter-spacing:.14em;font-weight:600;color:#7188a1;margin-top:4px}
.brand-icon{display:grid;place-items:center;width:39px;height:39px;border-radius:10px;background:var(--navy);color:#fff;font-size:20px;font-weight:700;box-shadow:0 6px 13px rgba(20,58,103,.18)}
.main-nav{display:flex;align-items:center;gap:37px;margin-left:auto;color:#445e79;font-size:15px;font-weight:600}
.main-nav a:hover{color:var(--blue)}
.header-cta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 19px;margin-left:8px;border-radius:8px;background:var(--navy);color:#fff;font-size:14px;font-weight:700;transition:background .2s,transform .2s}
.header-cta:hover{background:var(--blue-deep);transform:translateY(-1px)}
.hero{background:linear-gradient(118deg,#edf7fc 0%,#f5faff 50%,#e6f1fb 100%);position:relative;overflow:hidden}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero:before{width:490px;height:490px;border:1px solid rgba(75,147,211,.13);right:-170px;top:-250px;box-shadow:0 0 0 55px rgba(84,159,216,.035),0 0 0 112px rgba(84,159,216,.025)}
.hero:after{width:280px;height:280px;background:radial-gradient(circle,#d2f0f7 0%,rgba(210,240,247,0) 70%);left:-100px;bottom:-155px}
.hero-grid{position:relative;z-index:1;min-height:485px;display:grid;grid-template-columns:minmax(0,1fr) 425px;gap:65px;align-items:center;padding-block:60px 66px}
.eyebrow,.kicker{display:inline-flex;align-items:center;gap:10px;color:#2169bc;font-size:13px;font-weight:800;letter-spacing:.13em}
.eyebrow-line{width:22px;height:2px;background:#2f84d3}
.hero h1{margin:20px 0 20px;font-size:clamp(44px,4.8vw,64px);line-height:1.24;letter-spacing:-.04em;font-weight:850;color:#11365d}
.hero h1 em{font-style:normal;color:#2670c8}
.hero-copy>p{max-width:540px;color:#506b85;font-size:17px;line-height:1.95;margin:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 23px;border-radius:8px;font-size:15px;font-weight:700;transition:transform .2s,background .2s,border-color .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--blue);color:#fff;box-shadow:0 9px 24px rgba(36,108,222,.2)}
.button-primary:hover{background:var(--blue-deep)}
.button-ghost{border:1px solid #cbdbe9;background:rgba(255,255,255,.58);color:#315a82}
.button-ghost:hover{border-color:#8cb9de;background:#fff}
.hero-notice{display:flex;align-items:center;gap:9px;color:#55728d;font-size:13px;margin-top:25px}
.notice-icon{display:grid;place-items:center;flex:none;width:16px;height:16px;border:1.5px solid #6c9fc8;border-radius:50%;font-size:11px;font-weight:700;color:#4c87b9}
.hero-panel{background:#fff;border:1px solid #d9e8f2;border-radius:16px;box-shadow:var(--shadow);padding:20px 25px 0;transform:translateY(8px)}
.hero-panel-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #edf2f6;padding:3px 0 18px;font-size:14px;font-weight:800;color:#31506e}
.panel-status{background:#eaf5ff;color:#2870ba;border-radius:99px;padding:6px 10px;font-size:12px;font-weight:700}
.hero-service{display:flex;align-items:center;gap:16px;padding:25px 0;border-bottom:1px solid #edf2f6}
.service-icon,.card-icon{display:grid;place-items:center;flex:none;width:48px;height:48px;border-radius:12px;font-size:23px;font-weight:700}
.similarity{background:#e8f1ff;color:#2769c8}
.ai-icon{background:#e4f6f3;color:#198d86}
.hero-service>div{display:flex;flex-direction:column;gap:6px}
.hero-service strong{font-size:17px}
.hero-service div span{font-size:13px;color:#74889e}
.hero-service-index{margin-left:auto;font-size:12px;color:#a8b9c7;font-weight:800;letter-spacing:.1em}
.hero-panel-foot{display:flex;align-items:center;justify-content:center;gap:8px;padding:18px 0;color:#667f98;font-size:13px}
.tiny-dot{width:6px;height:6px;background:#39a79c;border-radius:50%}
.section{padding:87px 0}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:32px}
.section-heading h2,.submission-intro h2,.faq h2{margin:12px 0 0;font-size:clamp(28px,3vw,38px);line-height:1.35;letter-spacing:-.035em;color:#153657}
.section-heading>p{max-width:370px;font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 3px}
.service-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.service-card{border:1px solid var(--line);border-radius:14px;background:#fff;padding:28px 32px 29px;min-height:260px;transition:transform .22s,box-shadow .22s,border-color .22s}
.service-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(23,64,113,.09);border-color:#bed7ec}
.card-top{display:flex;align-items:start;justify-content:space-between}
.card-number{color:#7b98b2;font-size:12px;font-weight:800;letter-spacing:.12em}
.card-icon{width:50px;height:50px}
.service-card h3{font-size:24px;line-height:1.3;margin:4px 0 10px;color:#173d64}
.service-card p{max-width:440px;font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 22px}
.service-card a{display:inline-flex;align-items:center;gap:9px;color:#1f68c8;font-size:15px;font-weight:800}
.service-card a span{font-size:18px;transition:transform .2s}
.service-card a:hover span{transform:translateX(4px)}
.submission{background:#f4f8fc}
.submission-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:70px;align-items:start}
.submission-intro{padding-top:27px}
.submission-intro h2{font-size:clamp(32px,3.2vw,42px)}
.submission-intro>p{font-size:16px;line-height:2;color:#60758d;max-width:410px;margin:22px 0 0}
.submission-tip{margin-top:36px;display:flex;flex-direction:column;gap:10px;padding:23px 25px;border-left:3px solid #4b91dc;background:#e9f2fb;border-radius:0 9px 9px 0;color:#51708e;font-size:14px}
.submission-tip strong{font-size:15px;color:#254d77;margin-bottom:3px}
.submission-card{background:#fff;border:1px solid #e1eaf3;border-radius:15px;padding:32px;box-shadow:0 13px 38px rgba(32,71,112,.065)}
.form-row-title{display:flex;align-items:center;gap:11px;margin-bottom:17px}
.form-row-title.second{margin-top:28px}
.step-badge{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#e5f1fc;color:#2666ab;font-size:13px;font-weight:800}
.form-row-title h3{font-size:16px;margin:0;color:#244768}
.form-row-title small{margin-left:auto;color:#8398aa;font-size:13px}
.check-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.check-option{display:flex;align-items:center;gap:10px;min-height:74px;border:1px solid #dce7f1;border-radius:9px;padding:12px 13px;cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s}
.check-option:hover{border-color:#8fbcea}
.check-option.selected{border-color:#6eace9;background:#f3f9ff;box-shadow:inset 0 0 0 1px #cae0f7}
.check-option:focus-within{outline:3px solid #4e9afa;outline-offset:2px}
.check-option input{position:absolute;width:1px;height:1px;opacity:0}
.option-content{display:flex;flex-direction:column;gap:5px;min-width:0}
.option-content strong{font-size:15px;white-space:nowrap}
.option-content small{font-size:12px;color:#7b90a5;white-space:nowrap}
.option-check{display:grid;place-items:center;width:19px;height:19px;flex:none;margin-left:auto;border:1px solid #c0cedb;border-radius:50%;font-size:12px;color:transparent}
.selected .option-check{background:#2672d0;border-color:#2672d0;color:#fff}
.upload-zone{min-height:170px;border:1.5px dashed #a8c7e2;border-radius:10px;background:#f8fbfe;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;position:relative;text-align:center;padding:20px;transition:background .2s,border-color .2s}
.upload-zone:hover,.upload-zone.dragging{background:#eef7ff;border-color:#3482d5}
.upload-zone:focus-within{outline:3px solid #4e9afa;outline-offset:2px}
.upload-zone input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.upload-symbol{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;background:#e4f1ff;color:#2d75c7;font-size:27px;line-height:1}
.upload-zone strong{font-size:15px;color:#2b5279}
.upload-zone span:last-child{font-size:13px;color:#8499ac}
.file-summary{display:flex;align-items:center;gap:12px;padding:13px 14px;margin-top:12px;border:1px solid #cfe4d9;background:#f5fbf7;border-radius:9px}
.file-badge{display:grid;place-items:center;width:34px;height:34px;border-radius:7px;background:#dbeee6;color:#207b60;font-size:15px;font-weight:700}
.file-details{display:flex;flex-direction:column;gap:4px;min-width:0}
.file-details strong{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:300px}
.file-details small{font-size:12px;color:#6b8b7f}
.file-summary button{margin-left:auto;border:0;background:none;color:#67877d;font-size:24px;line-height:1}
.validation{margin:11px 0 0;color:#b84545;font-size:13px}
.submit-button{width:100%;min-height:48px;margin-top:23px;border:0;border-radius:8px;background:#9bbbdc;color:#fff;font-weight:800;font-size:15px}
.form-footnote{text-align:center;margin:11px 0 0;color:#8599ac;font-size:12px}
.process-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.process-grid article{position:relative;padding:31px 29px 32px;background:#f6f9fc;border:1px solid #e8eef4;border-radius:12px;min-height:190px}
.process-grid article:not(:last-child):after{content:"";position:absolute;right:-14px;top:48%;width:8px;height:8px;border-top:2px solid #b3cbe2;border-right:2px solid #b3cbe2;transform:rotate(45deg);z-index:1}
.process-number{font-size:27px;font-weight:800;color:#8db8e3;letter-spacing:-.05em}
.process-grid h3{font-size:18px;margin:20px 0 8px;color:#24496d}
.process-grid p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}
.faq{background:#f4f8fc}
.faq-grid{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:70px}
.faq-grid>div:first-child>p{font-size:15px;color:var(--muted);line-height:1.8;margin-top:17px}
.faq-items{border-top:1px solid #d9e5ef}
.faq-items details{border-bottom:1px solid #d9e5ef}
.faq-items summary{display:flex;align-items:center;justify-content:space-between;gap:20px;list-style:none;cursor:pointer;font-weight:700;font-size:16px;padding:22px 2px;color:#2b4a68}
.faq-items summary::-webkit-details-marker{display:none}
.faq-items summary:after{content:"+";font-size:24px;font-weight:400;color:#5e8bb6;line-height:1}
.faq-items details[open] summary:after{content:"−"}
.faq-items details p{font-size:14px;line-height:1.9;color:#60758e;margin:0;padding:0 22px 22px 2px}
.site-footer{background:#123553;color:#dceaf7;padding:29px 0}
.footer-inner{display:flex;align-items:center;gap:32px}
.footer-brand{font-size:19px}
.footer-brand .brand-icon{background:#2d6093;width:33px;height:33px;font-size:17px;box-shadow:none}
.footer-brand small{color:#a8c1d8;font-size:10px}
.footer-inner p{margin:0;font-size:13px;color:#a8c0d6}
.footer-inner>span:last-child{margin-left:auto;font-size:13px;color:#a8c0d6}
@media(max-width:900px){.hero-grid{grid-template-columns:minmax(0,1fr) 340px;gap:30px}.submission-grid,.faq-grid{gap:38px}.check-options{grid-template-columns:1fr}.check-option{min-height:65px}.submission-card{padding:25px}}
@media(max-width:700px){.container{width:min(100% - 32px,500px)}.site-header{height:66px}.header-inner{gap:12px}.brand{font-size:20px}.brand-icon{width:34px;height:34px;font-size:17px}.main-nav{display:none}.header-cta{margin-left:auto;min-height:36px;padding-inline:13px;font-size:13px}.hero-grid{display:flex;flex-direction:column;align-items:stretch;gap:30px;min-height:0;padding-block:62px 54px}.hero h1{font-size:43px;margin-top:16px}.hero-copy>p{font-size:16px}.hero-panel{transform:none}.section{padding:64px 0}.section-heading{display:block;margin-bottom:25px}.section-heading>p{margin-top:12px}.service-cards,.submission-grid,.process-grid,.faq-grid{grid-template-columns:1fr}.service-card{min-height:0}.submission-grid{gap:25px}.submission-intro{padding-top:0}.submission-tip{margin-top:23px}.check-options{grid-template-columns:1fr 1fr}.process-grid article:not(:last-child):after{display:none}.process-grid article{min-height:0}.faq-grid{gap:27px}.footer-inner{flex-wrap:wrap;gap:16px}.footer-inner p{width:100%;order:3}.footer-inner>span:last-child{margin-left:auto}}
@media(max-width:390px){.hero h1{font-size:38px}.hero-actions{display:grid}.check-options{grid-template-columns:1fr}.submission-card{padding:19px}.option-content small{white-space:normal}.footer-inner>span:last-child{margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}