:root{--ink:#101936;--muted:#66718a;--bg:#f5f3ff;--card:#fff;--blue:#5264f5;--cyan:#20d5ff;--violet:#9a42f0;--line:#e6e4f1;--shadow:0 22px 60px rgba(40,35,110,.13);--radius:26px}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.75}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.wrap{width:min(1180px,calc(100% - 40px));margin:auto}
.skip{position:fixed;left:-999px;top:8px;background:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(225,224,239,.75)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center}
.brand img{width:205px;height:auto;display:block}
.menu{display:flex;align-items:center;gap:30px;color:#4f5871}
.menu a{position:relative;font-size:15px}
.menu a:not(.nav-cta):after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));transition:.25s}
.menu a:hover:after,.menu a[aria-current="page"]:after{right:0}
.nav-cta,.primary-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;color:#fff;background:linear-gradient(100deg,#3659ee,#8d40e9);box-shadow:0 10px 25px rgba(84,74,226,.28);font-weight:700;transition:.25s}
.nav-cta{padding:10px 20px}
.primary-btn{min-height:52px;padding:0 28px}
.nav-cta:hover,.primary-btn:hover{transform:translateY(-2px);box-shadow:0 15px 32px rgba(84,74,226,.38)}
.secondary-btn{display:inline-flex;align-items:center;min-height:52px;padding:0 26px;border-radius:999px;border:1px solid rgba(255,255,255,.55);color:#fff;font-weight:700}
.menu-toggle{display:none;border:0;background:none;font-size:26px;color:var(--ink)}

.hero{position:relative;min-height:650px;overflow:hidden;color:#fff;background:#0b1745}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,13,39,.95) 0%,rgba(17,29,92,.78) 47%,rgba(50,30,126,.16) 100%)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center center}
.hero-inner{position:relative;z-index:2;min-height:650px;display:flex;align-items:center}
.hero-copy{width:min(650px,60%);padding:90px 0 120px}
.eyebrow{margin:0 0 14px;font-size:14px;font-weight:800;letter-spacing:.28em;color:#87eaff;text-transform:uppercase}
.hero h1{margin:0;font-size:clamp(44px,5.4vw,70px);line-height:1.08;letter-spacing:-.04em}
.hero h1 span{display:block;background:linear-gradient(90deg,#fff 15%,#80ecff 55%,#d9a8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:19px;color:rgba(255,255,255,.82);max-width:620px;margin:24px 0 32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:35px;margin-top:46px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stats strong{display:block;font-size:22px}
.hero-stats small{color:rgba(255,255,255,.68)}

.quick-panel{position:relative;z-index:6;margin:-74px auto 0;background:#fff;border-radius:28px;box-shadow:var(--shadow);padding:22px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.quick-item{display:flex;align-items:center;gap:14px;padding:18px 22px;border-right:1px solid var(--line);transition:.22s}
.quick-item:last-child{border:0}
.quick-item:hover{background:#f7f6ff;border-radius:18px}
.quick-icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,#e8fbff,#ece8ff);font-size:22px}
.quick-item strong{display:block}
.quick-item small{display:block;color:var(--muted);font-size:12px}

.section{padding:105px 0}
.section-soft{background:linear-gradient(180deg,#f8f6ff,#f3f7ff)}
.section-dark{background:#0d1635;color:#fff}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.kicker{font-weight:800;color:var(--blue);letter-spacing:.2em;font-size:13px}
.section h2{font-size:clamp(32px,4vw,48px);line-height:1.25;margin:9px 0 14px}
.section-head p{color:var(--muted);margin:0}
.section-dark .section-head p{color:#aeb9d8}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:#fff;border:1px solid #eceaf5;border-radius:22px;padding:30px 26px;box-shadow:0 12px 30px rgba(45,41,104,.06);transition:.25s}
.feature-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
.feature-card .num{display:inline-block;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.18em}
.feature-card h3{font-size:21px;margin:15px 0 9px}
.feature-card p{color:var(--muted);margin:0;font-size:15px}
.showcase{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px}
.visual-card{min-height:480px;border-radius:32px;padding:36px;background:radial-gradient(circle at 20% 10%,#715cf5,#1c2b81 58%,#0e183e);position:relative;overflow:hidden;box-shadow:var(--shadow)}
.visual-card:before{content:"MILAN";position:absolute;right:-25px;bottom:-70px;font-size:160px;font-weight:900;color:rgba(255,255,255,.055)}
.stadium{position:absolute;inset:85px 30px 35px;border-radius:50% 50% 20px 20px;background:radial-gradient(ellipse at center,#2addaf 0 22%,#189075 23% 28%,#b9c7e1 29% 34%,#1a2359 35% 100%);transform:perspective(600px) rotateX(50deg);box-shadow:0 0 80px rgba(39,218,255,.35)}
.visual-badge{position:relative;z-index:2;color:#fff}
.visual-badge small{letter-spacing:.22em}
.visual-badge strong{display:block;font-size:40px}
.check-list{list-style:none;padding:0;margin:26px 0}
.check-list li{position:relative;padding:11px 0 11px 34px;border-bottom:1px solid var(--line)}
.check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.project-card{border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:32px;background:rgba(255,255,255,.055)}
.project-card span{font-size:34px}
.project-card h3{font-size:22px;margin:15px 0 7px}
.project-card p{color:#aeb9d8;margin:0}
.faq{max-width:900px;margin:auto}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:800;font-size:18px;list-style:none;padding-right:34px;position:relative}
.faq summary:after{content:"+";position:absolute;right:4px;top:-4px;font-size:28px;color:var(--blue)}
.faq details[open] summary:after{content:"−"}
.faq p{color:var(--muted);margin:12px 0 4px}
.cta-band{padding:70px 0;background:linear-gradient(110deg,#2d4dde,#8a37df);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner h2{margin:0 0 6px;font-size:36px}
.cta-inner p{margin:0;color:rgba(255,255,255,.8)}
.cta-inner .primary-btn{background:#fff;color:#473fd0;box-shadow:none;white-space:nowrap}

.page-hero{padding:105px 0 80px;color:#fff;background:radial-gradient(circle at 85% 30%,rgba(36,213,255,.34),transparent 30%),linear-gradient(120deg,#0b1539,#394ac7 58%,#8334bd)}
.breadcrumbs{font-size:14px;color:rgba(255,255,255,.72)}
.page-hero h1{font-size:clamp(42px,6vw,72px);line-height:1.1;margin:18px 0}
.page-hero p{max-width:700px;font-size:18px;color:rgba(255,255,255,.8)}
.content-grid{display:grid;grid-template-columns:1.6fr .8fr;gap:35px}
.content-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px}
.content-card h2{font-size:30px}
.content-card p{color:#535f79}
.side-card{position:sticky;top:100px;height:max-content;background:#0f193a;color:#fff;border-radius:24px;padding:30px}
.side-card p{color:#abb7d7}
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.article-card{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff}
.article-cover{height:180px;display:grid;place-items:center;color:#fff;font-size:48px;background:linear-gradient(135deg,#243ba9,#8c3ddc)}
.article-card:nth-child(2) .article-cover{background:linear-gradient(135deg,#087c9e,#3457e8)}
.article-card:nth-child(3) .article-cover{background:linear-gradient(135deg,#9d4b17,#f1a52d)}
.article-body{padding:24px}
.article-body h2,.article-body h3{font-size:20px;margin:4px 0 9px}
.article-body p{font-size:14px;color:var(--muted)}

.footer{background:#080f28;color:#fff;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:55px}
.footer-logo{width:200px;filter:brightness(0) invert(1)}
.footer p,.footer a{color:#9da9c7;font-size:14px}
.footer-links{display:grid;gap:10px}
.footer h3{font-size:16px;margin:0 0 14px}
.copyright{margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;color:#7e8ba9;font-size:13px}
.float-entry{position:fixed;right:22px;bottom:22px;z-index:40;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,var(--cyan),var(--blue),var(--violet));box-shadow:0 14px 35px rgba(55,67,203,.45)}

@media(max-width:900px){.menu-toggle{display:block}
.menu{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;padding:20px;box-shadow:0 15px 30px rgba(20,20,70,.1);flex-direction:column;align-items:stretch}
.menu.open{display:flex}
.hero,.hero-inner{min-height:610px}
.hero-copy{width:85%;padding:70px 0 110px}
.hero-bg{object-position:center center}
.quick-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}
.quick-item:nth-child(2){border-right:0}
.quick-item{border-bottom:1px solid var(--line)}
.showcase,.content-grid{grid-template-columns:1fr}
.side-card{position:static}
.project-grid,.article-list{grid-template-columns:1fr 1fr}
.footer-grid{grid-template-columns:1fr 1fr}
}

@media(max-width:600px){.wrap{width:min(100% - 28px,1180px)}
.nav{height:68px}
.brand img{width:170px}
.menu{top:68px}
.hero,.hero-inner{min-height:650px}
.hero-copy{width:100%;padding:70px 0 120px}
.hero:after{background:linear-gradient(90deg,rgba(5,13,39,.96) 0%,rgba(9,20,63,.88) 60%,rgba(24,38,110,.48) 100%)}
.hero-bg{object-position:center center}
.hero h1{font-size:clamp(38px,11vw,46px)}
.lead{font-size:16px}
.hero-stats{gap:16px;justify-content:space-between}
.hero-stats strong{font-size:17px}
.hero-stats small{font-size:11px}
.primary-btn{width:100%;padding:0 18px}
.quick-panel{margin-top:-62px;padding:10px}
.quick-grid{grid-template-columns:1fr 1fr}
.quick-item{padding:14px 10px}
.quick-icon{width:38px;height:38px;border-radius:12px}
.section{padding:76px 0}
.feature-grid,.project-grid,.article-list{grid-template-columns:1fr}
.showcase{gap:35px}
.visual-card{min-height:360px}
.cta-inner{display:block}
.cta-inner .primary-btn{margin-top:22px}
.footer-grid{grid-template-columns:1fr}
.copyright{display:block}
.copyright span{display:block;margin-top:8px}
.page-hero{padding:78px 0 62px}
.content-card{padding:24px}
}

/* MOBILE-HERO-PERSON-V2 START */
@media (max-width:600px){
  .hero,
  .hero-inner{
    min-height:650px;
  }

  .hero-bg{
    width:112%;
    max-width:none;
    left:0;
    right:auto;
    object-fit:cover;
    object-position:left center;
  }

  .hero:after{
    background:
      linear-gradient(
        90deg,
        rgba(5,13,39,.95) 0%,
        rgba(7,17,53,.78) 48%,
        rgba(10,23,69,.28) 78%,
        rgba(12,25,72,.12) 100%
      );
  }

  .hero-copy{
    width:100%;
    padding:52px 0 112px;
  }

  .eyebrow{
    margin-bottom:10px;
    font-size:12px;
    letter-spacing:.24em;
  }

  .hero h1{
    max-width:290px;
    font-size:34px;
    line-height:1.06;
    letter-spacing:-.035em;
    text-shadow:0 3px 18px rgba(0,0,30,.48);
  }

  .hero h1 span{
    font-size:30px;
    line-height:1.08;
  }

  .lead{
    max-width:285px;
    margin:18px 0 24px;
    font-size:14px;
    line-height:1.65;
    color:rgba(255,255,255,.88);
    text-shadow:0 2px 12px rgba(0,0,30,.6);
  }

  .primary-btn{
    min-height:44px;
    font-size:14px;
  }

  .hero-stats{
    gap:10px;
    margin-top:38px;
    padding-top:18px;
  }

  .hero-stats > div{
    width:31%;
  }

  .hero-stats strong{
    font-size:15px;
    white-space:nowrap;
  }

  .hero-stats small{
    font-size:10px;
    line-height:1.4;
  }
}
/* MOBILE-HERO-PERSON-V2 END */

/* MOBILE-HERO-SPACING-V3 START */
@media (max-width:600px){

  /* 整个内容不再垂直居中，改为从顶部排列 */
  .hero-inner{
    align-items:flex-start;
  }

  .hero-copy{
    width:100%;
    padding:22px 0 105px;
  }

  /* 顶部标题区域贴近顶部 */
  .eyebrow{
    margin:0 0 8px;
  }

  .hero h1{
    margin:0;
  }

  .lead{
    margin:14px 0 0;
    max-width:285px;
  }

  /* 按钮与顶部文字拉开距离，整体下移 */
  .hero-actions{
    margin-top:72px;
  }

  /* 按钮下方三组文字继续下移 */
  .hero-stats{
    margin-top:48px;
    padding-top:17px;
  }
}
/* MOBILE-HERO-SPACING-V3 END */

/* MOBILE-HERO-FIXED-V4 START */
@media (max-width:600px){

  .hero,
  .hero-inner{
    min-height:650px;
  }

  .hero-inner{
    align-items:flex-start;
  }

  .hero-copy{
    position:relative;
    width:100%;
    min-height:650px;
    padding:20px 0 0;
  }

  /* 顶部标题和说明保持贴近顶部 */
  .eyebrow{
    margin:0 0 8px;
  }

  .hero h1{
    margin:0;
  }

  .lead{
    margin:14px 0 0;
  }

  /* 按钮强制下移 */
  .hero-actions{
    position:absolute;
    top:360px;
    left:0;
    right:0;
    margin:0;
  }

  /* 按钮下面三组文字强制下移 */
  .hero-stats{
    position:absolute;
    top:465px;
    left:0;
    right:0;
    margin:0;
    padding-top:17px;
  }
}
/* MOBILE-HERO-FIXED-V4 END */

/* MOBILE-HERO-TUNING-V5 START */
@media (max-width:600px){

  /* 顶部英文缩小 */
  .eyebrow{
    font-size:10px;
    line-height:1.3;
    letter-spacing:.22em;
    margin-bottom:7px;
  }

  /* 主标题整体缩小 */
  .hero h1{
    max-width:270px;
    font-size:30px;
    line-height:1.02;
  }

  .hero h1 span{
    font-size:26px;
    line-height:1.04;
  }

  /* 介绍文字缩小并收紧 */
  .lead{
    max-width:270px;
    margin-top:12px;
    font-size:13px;
    line-height:1.5;
  }

  /* 按钮位置保持 */
  .hero-actions{
    top:360px;
  }

  /* 下方三组文字上移，靠近按钮 */
  .hero-stats{
    top:425px;
    padding-top:13px;
  }

  .hero-stats strong{
    font-size:14px;
  }

  .hero-stats small{
    font-size:9px;
    line-height:1.35;
  }
}
/* MOBILE-HERO-TUNING-V5 END */