/* 首页 index.html 独立样式 —— 由内联 <style> 抽取，无外部依赖 */
:root{
    --blue:#0361CA;
    --blue-dark:#032D6B;
    --blue-btn:#1E4572;
    --orange:#FF9803;
    --ink:#1A2332;
    --gray:#6B7280;
    --line:#EDEFF2;
    --news-bg:#EEF5FC;
    --links-bg:#F5F7FA;
    --maxw:1440px;
    --pad:100px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"Microsoft YaHei","微软雅黑","Source Han Sans SC","思源黑体","Source Han Serif SC","思源宋体",sans-serif;
    color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.5;
  }
  .container{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
  img{display:block;max-width:100%}
  a{text-decoration:none;color:inherit}
  svg{display:block}

  /* ===== 导航栏（Logo 头） ===== */
  .header{background:var(--blue);height:110px;align-items:center;border-bottom:1px solid rgba(255,255,255,.12);height:130px;}
  .header .container{height:110px;display:flex;align-items:center;justify-content:space-between;height:130px;}
  .header__logo{height:76px;width:auto;height:106px;}
  .header__decor{height:39px;width:auto;margin-left:auto;margin-right:24px;opacity:1}
  .header__search{position:relative;display:flex;align-items:center}
  .header__search input{
    width:240px;height:36px;padding:0 12px 0 36px;background:transparent;border:1px solid rgba(255,255,255,.55);
    border-radius:4px;color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,background .2s ease;
  }
  .header__search input::placeholder{color:rgba(255,255,255,.65)}
  .header__search input:focus{border-color:#fff;background:rgba(255,255,255,.10)}
  .header__search svg{position:absolute;left:12px;width:15px;height:15px;color:rgba(255,255,255,.75);pointer-events:none}
  @media (max-width:768px){
    .header__search input{width:160px;height:32px;font-size:13px}
  }

  /* ===== 导航菜单（蓝底白字 + 二级下拉，参考 it.chd.edu.cn） ===== */
  .nav{background:var(--blue);height:53px}
  .nav__container{position:relative;height:53px;display:flex;align-items:center}
  .nav__menu{display:flex;align-items:stretch;justify-content:space-between;width:100%}
  .nav__item{position:relative;display:flex;align-items:stretch}
  .nav__link{
    color:#fff;font-size:20px;font-weight:600;letter-spacing:.5px;display:flex;align-items:center;justify-content:center;gap:6px;
    height:53px;padding:0 18px;position:relative;white-space:nowrap;line-height:1;
    transition:background .2s ease;
  }
  .nav__link.active{font-weight:700}
  .nav__label{position:relative;display:inline-block}
  .nav__underline{
    position:absolute;left:0;bottom:-17px;
    width:100%;height:4px;background:var(--orange);border-radius:1px;opacity:0;transition:opacity .2s ease;
  }
  .nav__link.active .nav__underline{opacity:1}
  /* 悬停：橙色下划线 + 轻量高亮（动效） */
  .nav__item:hover > .nav__link{/* background:rgba(255,255,255,.10); */}
  .nav__item:hover > .nav__link span{color:#fff}
  .nav__item:hover .nav__underline{opacity:1}
  /* 二级菜单下拉面板 */
  .has-sub > .nav__link::after{
    content:"";width:0;height:0;margin-left:2px;
    border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid rgba(255,255,255,.85);
    transition:transform .2s ease;
  }
  .nav__item.has-sub:hover > .nav__link::after{transform:rotate(180deg)}
  .nav__sub{
    position:absolute;top:100%;left:0;min-width:172px;
    background:#fff;box-shadow:0 14px 30px rgba(3,45,107,.20);
    padding:6px 0;
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(10px);
    transition:opacity .25s ease, transform .25s ease, visibility .25s;z-index:30;
  }
  .nav__item--last .nav__sub{left:auto;right:0}
  .nav__item.has-sub:hover .nav__sub,
  .nav__item.is-open .nav__sub{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
  .nav__sub a{
    display:block;padding:8px 26px 8px 16px;font-size:16px;color:var(--ink);white-space:nowrap;
    border-left:3px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;
  }
  .nav__sub a:hover{background:var(--news-bg);color:var(--blue);border-left-color:var(--orange)}
  .nav__toggle{display:none}
  /* 汉堡菜单顶部搜索框：桌面端隐藏（由 header 内 .header__search 承担），≤1280 时显示在汉堡菜单最上方 */
  .nav__search{display:none}
  .nav__search-form{position:relative;display:flex;align-items:center;padding-bottom:10px;margin-bottom:8px;border-bottom:1px solid rgba(255,255,255,.12)}
  .nav__search-form input{width:100%;height:38px;padding:0 12px 0 36px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.55);border-radius:4px;color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,background .2s ease}
  .nav__search-form input::placeholder{color:rgba(255,255,255,.65)}
  .nav__search-form input:focus{border-color:#fff;background:rgba(255,255,255,.10)}
  .nav__search-form svg{position:absolute;left:12px;width:15px;height:15px;color:rgba(255,255,255,.75);pointer-events:none}

  /* ===== Banner 三图自动轮播 ===== */
  .banner{position:relative;width:100%;max-width:none;overflow:hidden;background:var(--blue-dark);height:auto}
  .banner__slider{position:relative;width:100%}
  .banner__slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;z-index:1}
  .banner__slide.active{position:relative;inset:auto;opacity:1;z-index:2}
  .banner__slide img{width:100%;height:auto;display:block}
  .banner__dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
  .banner__dot{width:10px;height:10px;border:none;background:rgba(255,255,255,.5);cursor:pointer;border-radius:50%;transition:background .2s}
  .banner__dot.active{background:#fff}
  .banner__arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:44px;height:44px;border:none;background:rgba(0,0,0,.25);color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s}
  .banner__arrow:hover{background:rgba(0,0,0,.45)}
  .banner__arrow--prev{left:20px}
  .banner__arrow--next{right:20px}

  /* ===== 园区新闻 ===== */
  .news{background:#fff url(../assets/bg1.png) center/cover no-repeat;padding:81px 0}
  .news__head{position:relative;display:flex;align-items:flex-end;justify-content:center;margin-bottom:38px}
  .news__head .news__more{position:absolute;right:0;bottom:0}
  .section-title{position:relative;display:inline-block;text-align:center}
  .section-title__zh{position:relative;font-size:32px;font-weight:700;color:var(--blue);z-index:1;letter-spacing:3px;font-family:"Source Han Serif SC","思源宋体","Microsoft YaHei",serif;display:flex;align-items:center;justify-content:center;gap:10px}
  .section-title__en{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);font-size:40px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(3,97,202,.15);text-transform:uppercase;white-space:nowrap;line-height:1;letter-spacing:4px;pointer-events:none}
  .news__more{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--blue);margin-bottom:6px;padding:6px 16px;border:1px solid var(--blue);border-radius:20px;transition:all .25s ease}
  .news__more::after{content:'';display:inline-block;width:6px;height:6px;border-right:1.5px solid var(--blue);border-top:1.5px solid var(--blue);transform:rotate(45deg);transition:inherit}
  .news__more:hover{background:var(--blue);color:#fff}
  .news__more:hover::after{border-color:#fff;transform:rotate(45deg) translate(2px,-2px)}
  .news__pages{position:relative}
  .news__page{display:none}
  .news__page.is-active{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;animation:newsFade .4s ease}
  @keyframes newsFade{from{opacity:0;transform:translateX(26px)}to{opacity:1;transform:none}}
  .card{background:#fff;display:flex;flex-direction:column;overflow:hidden;transition:background .25s ease,transform .25s ease,box-shadow .25s ease;position:relative}
  .card::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%) scaleX(0);width:100%;height:4px;background:var(--orange);transition:transform .35s ease;transform-origin:center}
  .card__img{width:100%;aspect-ratio:292/190;object-fit:cover;display:block}
  .card__body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;transition:background .25s ease}
  .card__title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .25s ease}
  .card__desc{font-size:14px;color:var(--gray);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .25s ease}
  .card__foot{display:flex;align-items:center;justify-content:flex-start;margin-top:auto}
  .card__date{font-size:14px;color:var(--gray);transition:color .25s ease}
  .card__time-icon{width:14px;height:14px;flex:0 0 auto;margin-right:5px;opacity:.55;transition:opacity .25s ease}
  .card__time-icon--white{width:14px;height:14px;flex:0 0 auto;margin-right:5px;display:none}
  .card__arrow{color:var(--gray);transition:color .25s ease}
  .card__arrow svg{width:16px;height:16px}
  /* 鼠标悬停/选中：整张卡片上浮 + 阴影，白底变蓝底、文字变白 */
  .card{cursor:pointer}
  .card:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(3,45,107,.14)}
  .card:hover,
  .card.is-selected{background:var(--blue)}
  .card:hover::after,
  .card.is-selected::after{transform:translateX(-50%) scaleX(1)}
  .card:hover .card__title,
  .card:hover .card__desc,
  .card:hover .card__date{color:rgba(255,255,255,.95)}
  .card:hover .card__time-icon{display:none}
  .card:hover .card__time-icon--white{display:inline-block}
  .card:hover .card__arrow,
  .card.is-selected .card__title,
  .card.is-selected .card__desc,
  .card.is-selected .card__date{color:#fff}
  .card.is-selected .card__time-icon{display:none}
  .card.is-selected .card__time-icon--white{display:inline-block}
  .card:hover .card__arrow,
  .card.is-selected .card__arrow{color:#fff}
  .card:hover .card__desc,
  .card:hover .card__date,
  .card.is-selected .card__desc,
  .card.is-selected .card__date{color:rgba(255,255,255,.85)}
  .news__pager{display:flex;justify-content:right;align-items:center;gap:16px;margin-top:32px}
  .news__nav{flex:0 0 auto;width:40px;height:40px;background:#fff;border:1px solid var(--line);color:var(--blue);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;transition:.25s;user-select:none;box-shadow:0 3px 10px rgba(15,20,25,.06)}
  .news__nav:hover{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 6px 16px rgba(3,97,202,.32);transform:translateY(-2px)}
  .dot{height:8px;border-radius:4px;background:linear-gradient(135deg,#E2E8F0 0%,#CBD5E1 100%);border:none;cursor:pointer;transition:background .2s,width .2s}
  .dot--active{width:150px;background:linear-gradient(135deg,#0361CA 0%,#021d44 100%)}
  .dot:not(.dot--active){width:55px}

  /* ===== 通知公告与下载中心 ===== */
  .board{background:#fff url(../assets/images/bg_tz.png) center/cover no-repeat;padding:60px 0}
  .board__grid{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:stretch}
  .panel{display:flex;flex-direction:column;gap:20px}
  .panel--notice{min-width:0}
  .panel--download{min-width:0}
  .panel__head{display:flex;align-items:flex-end;justify-content:space-between}
  .panel__title{position:relative;display:inline-block;font-size:30px;font-weight:700;color:var(--blue);letter-spacing:2px;font-family:"Source Han Serif SC","思源宋体","Microsoft YaHei",serif;padding-left:0}
  .panel__title::after{content:'';position:absolute;left:0;bottom:-10px;width:52px;height:4px;border-radius:2px;background:var(--blue)}
  .panel__more{font-size:13px;color:var(--blue);margin-bottom:-9px;margin-left:-20px;display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border:1px solid var(--blue);border-radius:20px;transition:all .25s ease}
  .panel__more::after{content:'';display:inline-block;width:6px;height:6px;border-right:1.5px solid var(--blue);border-top:1.5px solid var(--blue);transform:rotate(45deg);transition:inherit}
  .panel__more:hover{background:var(--blue);color:#fff}
  .panel__more:hover::after{border-color:#fff;transform:rotate(45deg) translate(2px,-2px)}
  .panel__subtitle{font-size:13px;color:var(--gray);text-transform:uppercase;letter-spacing:1px;margin:-10px 0 8px 0;opacity:.8}

  .notice__list{display:flex;gap:24px;align-items:stretch}
  .notice__left{display:flex;flex-direction:column;gap:24px;flex:0 0 350px}
  .notice__headline{border:1px solid var(--line);padding:18px;display:flex;flex-direction:column;gap:12px;flex:1;transition:background .3s ease,border-color .3s ease,transform .3s ease,box-shadow .3s ease}
  .notice__headline:hover,
  .notice__headline.is-active{
    background:url('../assets/images/bg3.png') center/cover no-repeat;
    border-color:transparent;transform:translateY(-4px);box-shadow:0 12px 24px rgba(3,45,107,.25);
  }
  .headline-year{font-size:13px;color:var(--gray);line-height:1;transition:color .3s ease}
  .headline-year-big{font-size:34px;font-weight:700;color:var(--blue);line-height:1;vertical-align:baseline;transition:color .3s ease}
  .notice__headline:hover .headline-year,
  .notice__headline.is-active .headline-year{color:rgba(255,255,255,.85)}
  .notice__headline:hover .headline-year-big,
  .notice__headline.is-active .headline-year-big{color:var(--orange)}
  .notice__headline h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.4;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;transition:color .3s ease}
  .notice__headline p{font-size:16px;color:var(--gray);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .3s ease}
  .notice__headline:hover h3,
  .notice__headline.is-active h3{color:#fff}
  .notice__headline:hover p,
  .notice__headline.is-active p{color:rgba(255,255,255,.85)}

  .notice__items{flex:1;min-width:0;display:flex;flex-direction:column;gap:12px;}
  .notice-item{display:flex;align-items:center;gap:16px;padding:14px 16px;flex:1 1 0;min-height:0;border:1px solid var(--line);transition:background .2s ease,color .2s ease,border-color .2s ease}
  .notice-item__date{display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.15;color:var(--gray);flex:0 0 66px;transition:color .2s ease}
  .notice-item__year{font-size:18px;font-weight:700;letter-spacing:.5px;line-height:1.1;margin-bottom:4px;font-style:normal;font-family:"Source Han Serif SC","思源宋体","Microsoft YaHei",serif}
  .notice-item__day{font-size:14px;font-weight:600;line-height:1.15;font-style:normal}
  .notice-item__title{font-size:16px;color:var(--ink);line-height:1.5;transition:color .2s ease;flex:1 1 0;min-width:0;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}
  /* 鼠标悬停/选中：文字蓝渐变 + 边框蓝渐变 + 加粗 */
  .notice-item:hover,
  .notice-item.is-active{border:2px solid transparent;border-image:linear-gradient(135deg,#0361CA 0%,#021d44 100%) 1;background:transparent}
  .notice-item:hover .notice-item__year,
  .notice-item.is-active .notice-item__year,
  .notice-item:hover .notice-item__day,
  .notice-item.is-active .notice-item__day{background:linear-gradient(135deg,#0361CA 0%,#021d44 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
  .notice-item:hover .notice-item__title,
  .notice-item.is-active .notice-item__title{font-weight:700;background:linear-gradient(135deg,#0361CA 0%,#021d44 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

  /* 下载中心面板 - 与通知公告配色一致 */
  .panel--download{background:transparent;border-radius:12px;padding:0px 24px;color:var(--ink);display:flex;flex-direction:column}
  .panel--download .panel__title{color:var(--blue);font-size:26px;letter-spacing:2px;font-family:"Source Han Serif SC","思源宋体","Microsoft YaHei",serif;display:inline-block;text-align:left}
  .panel--download .panel__title::before{background:var(--orange)}
  .panel--download .panel__title::after{background:var(--blue);left:0;right:auto}
  .panel--download .panel__subtitle{color:var(--gray);margin:-8px 0 6px 0;font-size:12px;text-align:left}
  .panel--download .panel__more{color:var(--blue);border-color:var(--blue);font-size:13px;margin-bottom:-4px;display:inline-flex;align-items:center;gap:6px;padding:5px 16px;border:1px solid;border-radius:20px;transition:all .25s ease;transform:translateY(5px)}
  .panel--download .panel__more::after{content:'';display:inline-block;width:6px;height:6px;border-right:1.5px solid var(--blue);border-top:1.5px solid var(--blue);transform:rotate(45deg);transition:inherit}
  .panel--download .panel__more:hover{background:var(--blue);color:#fff}
  .panel--download .panel__more:hover::after{border-color:#fff}
  .download__list{display:flex;flex-direction:column;flex:1 1;min-height:0;padding:2px 0}
  .download-item{display:flex;align-items:center;gap:10px;padding:6px 9px;flex:1 1 0;min-height:56px;border-bottom:1px solid var(--line);transition:background .25s ease,padding-left .25s ease}
  .download-item:last-child{border-bottom:none}
  .download-item__bullet{width:6px;height:6px;border:1.2px solid var(--blue);border-radius:50%;background:transparent;flex:0 0 6px;transition:all .25s ease}
  .download-item:hover .download-item__bullet{background:var(--orange);border-color:var(--orange);transform:scale(1.3)}
  .download-item__name{font-size:16px;color:var(--ink);flex:1;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.4;transition:color .25s ease}
  .download-item:hover{background:rgba(3,97,202,.04);padding-left:16px}
  .download-item:hover .download-item__name a{color:var(--blue)}

  /* ===== 快速通道 ===== */
  .links{background:#eef5fc;padding:110px 0 110px 0;overflow:hidden;position:relative}
  .links::before{content:'';position:absolute;top:-70px;right:-60px;width:260px;height:260px;border-radius:50%;background:transparent;pointer-events:none}
  .links::after{content:'';position:absolute;bottom:-90px;left:-50px;width:280px;height:280px;border-radius:50%;background:transparent;pointer-events:none}
  .links .container{position:relative;z-index:1}
  .links .section-title{margin-bottom:38px;display:block;width:fit-content;margin-left:auto;margin-right:auto}
  .links .section-title .section-title__zh{justify-content:center}
  .links__carousel{display:flex;align-items:center;gap:18px}
  .links__nav{flex:0 0 auto;width:44px;height:44px;background:#fff;border:1px solid var(--line);color:var(--blue);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;transition:.25s;user-select:none;box-shadow:0 3px 10px rgba(15,20,25,.06)}
  .links__nav:hover{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 6px 16px rgba(3,97,202,.32);transform:translateY(-2px)}
  .links__viewport{flex:1;overflow:hidden;padding:18px 2px}
  .links__track{display:flex;gap:24px;width:max-content;transition:transform .5s ease}
  .link-card{flex:0 0 auto;height:90px;background:url(../assets/bg4w.png) right top/cover no-repeat;background-clip:padding-box;border:1px solid transparent;display:flex;align-items:center;gap:14px;padding:0 18px;cursor:pointer;transition:.25s;box-shadow:0 2px 10px rgba(15,20,25,.05)}
  .link-card__avatar{flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:var(--c,#0361CA);color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(3,97,202,.25);transition:.25s}
  .link-card__name{flex:1;font-size:16px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:.2s}
  /* 每个快速通道前的内容相关小图标 */
  .link-card__icon{flex:0 0 auto;width:38px;height:38px;border-radius:0;background:url(../assets/images/link-icon-bg.png) center/contain no-repeat;color:var(--blue);display:flex;align-items:center;justify-content:center;transition:.25s}
  .link-card__icon svg{width:18px;height:18px}
  .link-card:hover .link-card__icon{background:url(../assets/images/link-icon-bg.png) center/contain no-repeat;filter:brightness(0) invert(1);color:#fff}
  .link-card:hover{background:url(../assets/bg4.png) right top/cover no-repeat;background-clip:padding-box;border-color:transparent;transform:translateY(-5px);box-shadow:0 12px 24px rgba(3,97,202,.30)}
  .link-card:hover .link-card__name{color:#fff}
  .link-card:hover .link-card__avatar{background:rgba(255,255,255,.20);color:#fff;transform:rotate(-6deg) scale(1.05)}

  /* ===== 页脚 ===== */
  .footer{background:var(--blue);color:#fff;padding:45px 0 0;position:relative}
  /* 科技暗纹：节点点阵 + 细网格 + 角落辉光，低透明度铺底 */
  .footer::before{
    content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
    background-image:
      radial-gradient(circle at 1px 1px, rgba(255,255,255,.14) 1.3px, transparent 1.6px),
      linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
      radial-gradient(120% 80% at 100% 0%, rgba(255,255,255,.10), transparent 60%);
    background-size: 28px 28px, 56px 56px, 56px 56px, 100% 100%;
    background-position: -1px -1px, 0 0, 0 0, 0 0;
  }
  .footer .container{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px}
  .footer__brand{display:flex;flex-direction:column;gap:24px;max-width:520px}
  .footer__id{display:flex;align-items:center;gap:12px}
  .footer__logo{height:70px;width:auto;flex:0 0 auto;height:90px;}
  .footer__name{font-size:20px;font-weight:600}
  .footer__en{font-size:11px;letter-spacing:.5px;line-height:1.4}

  .footer__right{display:flex;align-items:center;gap:88px}
  .footer__contact{display:flex;flex-direction:column;gap:16px}
  .footer__contact h4{font-size:16px;font-weight:600}
  .footer__row{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.4}
  .footer__row img.footer__icon,
  .footer__row img.img_vsb_content{width:16px;height:16px;flex:0 0 16px;object-fit:contain;display:block}
  .footer__qr{width:90px;height:90px;border-radius:4px;flex:0 0 90px}
  .footer__qr img{width:100%;height:100%;object-fit:contain;display:block}

  .footer__copy{text-align:center;font-size:13px;color:rgba(255,255,255,.6);padding:20px 0;margin-top:40px;border-top:1px solid rgba(255,255,255,.12);position:relative;z-index:1}

  /* ===== 响应式 ===== */
  /* 平板及以下：导航折叠为汉堡菜单（提前到 1280px，避免 6 个长中文菜单项在中等屏溢出） */
  @media (max-width:1280px){
    .nav__toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:10px 8px;margin-right:auto}
    .nav__toggle span{width:24px;height:2px;background:#fff;display:block;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
    .nav--open .nav__toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .nav--open .nav__toggle span:nth-child(2){opacity:0}
    .nav--open .nav__toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .nav__menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--blue);flex-direction:column;align-items:stretch;padding:6px 24px 16px;gap:0;box-shadow:0 12px 24px rgba(0,0,0,.22);z-index:40;max-height:calc(100vh - 53px);overflow-y:auto;-webkit-overflow-scrolling:touch}
    .nav.nav--open .nav__menu{display:flex}
    /* 汉堡菜单内顶部显示搜索框，header 内的搜索框在 ≤1280 隐藏，避免重复 */
    .header__search{display:none}
    .nav__search{display:block}
    /* 汉堡菜单下改为纵向排列，让二级导航（nav__sub）堆叠到一级标签（nav__label）下方，而非并排显示在右侧 */
    .nav__item{width:100%;display:block}
    .nav__link{justify-content:space-between;width:100%;height:auto;padding:14px 4px;font-size:20px;border-bottom:1px solid rgba(255,255,255,.12)}
    .nav__link .nav__underline{display:none}
    .nav__item:last-child .nav__link{border-bottom:none}
    /* 移动端二级菜单：手风琴展开（覆盖桌面 hover 下拉） */
    .nav__sub{position:static;opacity:1;visibility:visible;pointer-events:auto;transform:none;box-shadow:none;border-top:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.14);min-width:0;display:none;padding:0}
    .nav__item.is-open .nav__sub{display:block}
    .nav__sub a{color:#fff;padding:12px 20px 12px 30px;border-left:none;font-size:16px}
    .nav__sub a:hover{background:rgba(255,255,255,.10);color:#fff}
    /* 汉堡菜单：收起时箭头朝右(→)提示可展开，展开时箭头朝下(▼)表示子菜单在其一级项下方 */
    .nav__item.has-sub > .nav__link::after{transform:rotate(-90deg)}
    .nav__item.has-sub.is-open > .nav__link::after{transform:rotate(0deg)}
    .nav__item.has-sub:not(.is-open):hover > .nav__link::after{transform:rotate(-90deg)}
    /* 移动端禁用 hover 态，避免与手风琴冲突 */
    .nav__item.has-sub:hover > .nav__link{background:transparent}
  }
  @media (max-width:1200px){
    :root{--pad:60px}
    .news__page.is-active{grid-template-columns:repeat(2,1fr)}
    .header__logo{height:54px;height:74px}
    .header{height:96px}
    .header .container{height:96px}
    .header__decor{display:none}
    .header__search input{width:200px}
    .notice__left{flex:0 0 280px}
  }
  @media (max-width:1024px){
    .board__grid{grid-template-columns:1fr}
    .panel--notice,.panel--download{width:100%}
    .panel--download{padding:28px 32px}
    .notice__list{flex-direction:column}
    .notice__headline{width:100%;flex:0 0 auto}
    .notice__items{flex:0 0 auto;width:100%}
    .notice-item{flex:0 0 auto;min-height:0}
    .notice-item__title{-webkit-line-clamp:unset;display:block;overflow:visible;white-space:normal}
    .footer .container{flex-direction:column;align-items:flex-start}
    .footer__right{flex-direction:column;align-items:flex-start;gap:24px}
  }
    @media (max-width:920px){
     .footer__en{font-size:10px}
    .footer__logo{height:auto;max-width:100%;max-width:52%}
    .footer__id{flex-wrap:wrap}
    .footer__right{align-items:center;align-self:center;text-align:center}
    .footer__qr{align-self:center}
      .footer__row>span{
      text-align: left;
   }
}
  @media (max-width:768px){
    :root{--pad:24px}
    .banner{height:auto}
    .header{height:64px}
    .header .container{height:64px}
    .header__logo{height:44px}
    .header__search input{width:150px;height:32px;font-size:13px}
    .news__page.is-active{grid-template-columns:1fr}
  
    .to-top img{transform:translate(-10px,-3px)}
    .notice__items{gap:10px}
    .notice-item{gap:12px;padding:12px 14px;min-height:56px;flex:0 0 auto}
    .notice-item__title{font-size:15px;flex:1 1 auto;min-width:0;display:block;overflow:visible;white-space:normal}
    .notice-item__date{flex:0 0 60px}
    .news__head{flex-direction:column;align-items:center;gap:14px}
    .news__head .news__more{position:static;right:auto;bottom:auto;margin-bottom:0}
    .to-top img{transform:translate(-10px,-3px)}
  }
  @media (max-width:767px){
    .link-card__name{font-size:20px}
  }
  @media (max-width:480px){
    :root{--pad:16px}
    .header__search input{width:118px}
    .header__search svg{left:9px}
    .header__search input{padding-left:30px}
    .notice-item{gap:10px;padding:10px 12px;min-height:52px;flex:0 0 auto}
    .notice-item__title{font-size:14px;flex:1 1 auto;min-width:0;display:block;overflow:visible;white-space:normal}
    .notice-item__date{flex:0 0 54px}
    .notice-item__year{font-size:16px}
    .notice-item__day{font-size:12px}
    .to-top img{transform:translate(0px,-3px)}
  }

  /* ===== 动态交互增强 ===== */
  html{scroll-behavior:smooth;scroll-padding-top:68px}
  /* 滚动时导航加阴影 */
  .nav{position:sticky;top:0;z-index:50}
  .nav.is-scrolled{box-shadow:0 6px 22px rgba(3,45,107,.20)}
  /* 滚动揭示：进入视口淡入上移 */
  .js .reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
  .js .reveal.is-visible{opacity:1;transform:none}
  .js .reveal[data-delay="1"]{transition-delay:.08s}
  .js .reveal[data-delay="2"]{transition-delay:.16s;padding-top:0px}
  .js .reveal[data-delay="3"]{transition-delay:.24s}
  .js .reveal[data-delay="4"]{transition-delay:.32s}
  .js .reveal[data-delay="5"]{transition-delay:.40s}
  /* 新闻卡片悬停上浮 */
  .card{transition:transform .3s ease,box-shadow .3s ease}
  .card:hover{transform:translateY(-6px);box-shadow:0 16px 32px rgba(15,20,25,.13)}
  /* Banner 当前图：完整展示，不裁切 */
  .banner__slide img{width:100%;height:auto;display:block;transition:opacity .9s ease}
  /* 返回顶部 */
  .to-top{position:absolute;right:24px;top:0;transform:translateY(-50%) translateY(18px);width:auto;height:auto;border:none;background:none;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s ease,transform .3s ease;z-index:9999}
  .to-top.show{opacity:1;visibility:visible;transform:translateY(-50%)}
  .to-top:hover{transform:translateY(-50%) scale(1.08)}
  .to-top img{height:55px;width:auto;display:block;position:relative;z-index:9999;transform:translate(-79px,-3px)}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .js .reveal{opacity:1;transform:none;transition:none}
  }

  /* ===== 搜索弹窗（点击搜索图标唤起） ===== */
  .search-btn{
    flex:0 0 auto;
    width:24px;height:24px;
    margin-left:24px;
    background:url(../assets/images/search.svg) no-repeat center center;
    background-size:16px 16px;
    cursor:pointer;opacity:.92;
    transition:transform .25s ease,opacity .25s ease;
  }
  .search-btn:hover{opacity:1;transform:scale(1.1)}
  .nav__search .search-btn{margin:6px 0 10px}

  .search-dialog-box{
    position:fixed;inset:0;z-index:99999;
    display:flex;align-items:center;justify-content:center;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .3s ease,visibility .3s ease;
  }
  .search-dialog-box.on{opacity:1;visibility:visible;pointer-events:auto}
  .search-bg{position:absolute;inset:0;background:rgba(3,45,107,.55);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}
  .search-dialog{position:relative;z-index:2;width:100%;max-width:680px;padding:0 20px}
  .search-inner{background:#fff;border-radius:5px;box-shadow:0 24px 60px rgba(3,45,107,.35);padding:40px 36px;animation:searchPop .3s ease}
  @keyframes searchPop{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}
  .wrap-inner{}
  .search{width:100%}
  .search-input{position:relative;display:flex;align-items:center;border:2px solid var(--blue);border-radius:10px;overflow:hidden;transition:box-shadow .2s ease}
  .search-input:focus-within{box-shadow:0 0 0 4px rgba(3,97,202,.15)}
  .search-input input[type="text"]{flex:1;min-width:0;border:none;outline:none;height:56px;padding:0 18px;font-size:16px;color:var(--ink);background:transparent}
  .search-input input[type="text"]::placeholder{color:var(--gray)}
  .search-input input[type="submit"]{flex:0 0 auto;border:none;background:var(--blue);color:#fff;height:56px;padding:0 34px;font-size:16px;font-weight:600;cursor:pointer;transition:background .2s ease}
  .search-input input[type="submit"]:hover{background:var(--blue-dark)}
  .search-input .clear-btn{position:absolute;right:112px;top:50%;transform:translateY(-50%);width:22px;height:22px;display:none;cursor:pointer}
  .search-input.has-text .clear-btn{display:block}
  .search-input .clear-btn::before,.search-input .clear-btn::after{content:'';position:absolute;left:50%;top:50%;width:14px;height:2px;background:var(--gray);border-radius:1px}
  .search-input .clear-btn::before{transform:translate(-50%,-50%) rotate(45deg)}
  .search-input .clear-btn::after{transform:translate(-50%,-50%) rotate(-45deg)}
  .pub-close{position:absolute;top:22px;right:22px;z-index:3;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;background:rgba(255,255,255,.16);transition:background .2s ease}
  .pub-close:hover{background:rgba(255,255,255,.32)}
  .pub-close .bg{display:none}
  .pub-close i{position:relative;display:block;width:20px;height:20px}
  .pub-close i::before,.pub-close i::after{content:'';position:absolute;left:50%;top:50%;width:22px;height:2px;background:#fff;border-radius:2px}
  .pub-close i::before{transform:translate(-50%,-50%) rotate(45deg)}
  .pub-close i::after{transform:translate(-50%,-50%) rotate(-45deg)}