*{box-sizing:border-box}html{font-size:16px}body{margin:0;font-family:"Microsoft YaHei",Arial,sans-serif;color:#fff;background:#3f0b03 url("../../img/背景合成.jpg") center top/100% 100% fixed no-repeat;min-height:100vh}a{color:inherit;text-decoration:none}.wrap{width:1010px;max-width:calc(100% - 28px);margin:0 auto}.topbar{background:rgba(0,0,0,.18) url("../../images/topbg.jpg") center top no-repeat;font-size:14px}.topbar__inner{height:51px;display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar nav{display:flex;align-items:center;gap:8px;white-space:nowrap}.topbar a:hover{text-decoration:underline}.page{padding:30px 0 26px}.hero{text-align:center}.brand{display:inline-flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}.brand img{max-height:94px;max-width:min(42vw,305px);object-fit:contain}.brand__sub{max-height:60px;max-width:min(48vw,430px)!important}.tip{margin:8px auto 10px;color:#fff;font-size:15px}.contact{max-width:800px;margin:0 auto 15px;padding:16px 40px;display:flex;align-items:center;justify-content:center;gap:20px;font-weight:700;color:#fff;transition:all .25s ease}.contact:hover{background-color:#7a0e24;transform:scale(1.02);border-radius:12px}.contact img{width:32px;height:32px;filter:brightness(0) invert(1)}.contact span{font-size:24px}.contact strong{font-size:40px;letter-spacing:2px}.platform-grid{margin-top:15px;padding:22px 15px;display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}.platform-card{width:478px;height:318px;margin-bottom:45px;padding:12px 17px 16px;background:url("../../img/测速区域-底框.png") center top/100% 100% no-repeat;border-radius:5px;overflow:hidden}.platform-card__logo{height:92px;display:flex;align-items:center;justify-content:center}.platform-card__logo img{display:block;max-width:270px;max-height:83px;object-fit:contain}.line-list{list-style:none;padding:0;margin:9px 0 0;display:flex;flex-direction:column;align-items:center}.line-item{width:411px;height:28px;margin-bottom:7px;display:grid;grid-template-columns:80px 240px 91px;align-items:center;background:url("../../img/测速地址按钮-静止效果.png") center/100% 100% no-repeat;overflow:hidden}.line-item.is-hidden{display:none}.line-speed{width:80px;height:28px;border:0;background:transparent;color:#fff;font:700 14px/28px "Microsoft YaHei",Arial,sans-serif;text-align:center;white-space:nowrap;cursor:pointer;padding:0}.line-speed:hover{filter:brightness(1.12)}.line-speed.testing{font-size:12px}.line-speed.timeout{font-size:12px}.line-url{height:28px;line-height:28px;padding-left:12px;padding-right:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#666;font-size:17px;background:transparent}.enter-btn{height:28px;line-height:28px;text-align:center;color:#fff;font-weight:700;font-size:14px;background:transparent}.enter-btn:hover,.register-btn:hover{filter:brightness(1.12)}.card-refresh{display:block;width:354px;height:42px;margin:7px auto 0;border:0;background:url("../../img/重新测速.png") center/100% 100% no-repeat;cursor:pointer;text-indent:-9999px;overflow:hidden}.card-refresh:hover{filter:brightness(1.07)}.card-refresh:disabled{cursor:wait;filter:grayscale(.15) brightness(.92)}.footer{padding:18px 0 24px;color:rgba(255,255,255,.72);font-size:13px;text-align:center}
@media (max-width:1040px){body{background-attachment:scroll;background-size:cover}.platform-grid{justify-content:center;gap:22px}.platform-card{margin-bottom:22px}}
@media (max-width:640px){.wrap{max-width:calc(100% - 8px)}.topbar__inner{height:auto;min-height:44px;flex-direction:column;align-items:flex-start;padding:10px 0;gap:8px}.page{padding-top:18px}.brand{gap:10px}.brand img{max-height:70px;max-width:82vw}.brand__sub{max-height:44px;max-width:88vw!important}.tip{font-size:13px;line-height:1.6}.contact{gap:10px;padding:12px 10px;margin-bottom:10px}.contact span{font-size:17px}.contact strong{font-size:28px}.contact img{width:26px;height:26px}.platform-grid{padding:12px 0;margin-top:8px}.platform-card{width:100%;max-width:478px;height:auto;min-height:318px;padding:12px clamp(8px,3.4vw,17px) 16px;background:url("../../img/测速区域-底框.png") center top/100% 100% no-repeat}.platform-card__logo{height:86px}.platform-card__logo img{max-height:78px;max-width:78%}.line-list{margin-top:8px}.line-item{width:min(411px,100%);grid-template-columns:19.46% 58.39% 22.15%;margin-bottom:7px}.line-speed{width:100%;font-size:13px}.line-speed.testing,.line-speed.timeout{font-size:11px}.line-url{font-size:14px;padding-left:9px}.enter-btn{font-size:13px}.card-refresh{width:min(354px,88%);height:42px;margin-top:8px}.footer{padding-bottom:18px}}
@media (max-width:380px){.line-speed{font-size:12px}.line-url{font-size:13px}.enter-btn{font-size:12px}.contact strong{font-size:24px}}