:root{--color-primary:#003aa7;--color-primary-light:#0055d4;--color-primary-dark:#002a7a;--color-accent:#ff7b29;--color-accent-light:#ff9f43;--color-bg:#e8eef5;--color-bg-light:#f5f7fa;--color-card:#fff;--color-text:#333;--color-text-light:#666;--color-text-muted:#999;--color-border:#003aa71f;--radius-sm:8px;--radius:12px;--radius-lg:16px;--shadow-sm:0 2px 8px #0000000f;--shadow:0 4px 16px #00000014;--shadow-lg:0 8px 40px #0000001f;--font-xs:clamp(.625rem, .6rem + .12vw, .75rem);--font-sm:clamp(.75rem, .72rem + .15vw, .875rem);--font-base:clamp(.875rem, .84rem + .18vw, 1rem);--font-lg:clamp(1rem, .94rem + .3vw, 1.125rem);--font-xl:clamp(1.125rem, 1rem + .6vw, 1.5rem);--font-2xl:clamp(1.25rem, 1rem + 1.2vw, 1.75rem);--font-3xl:clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);--tap-target:44px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;scroll-behavior:smooth;font-size:16px}body{width:100%;min-height:100dvh;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:var(--font-base);color:var(--color-text);background:linear-gradient(135deg,#e8eef5 0%,#f5f7fa 50%,#e3eaf3 100%) fixed;line-height:1.6;overflow-x:hidden}ul,ol{list-style:none}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button{cursor:pointer;background:0 0;border:none;font-family:inherit}:focus:not(:focus-visible){outline:none}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.top-bar{-webkit-backdrop-filter:blur(12px);z-index:200;background:#ffffffbf;border-bottom:1px solid #003aa70f;position:sticky;top:0}.top-bar-inner{justify-content:space-between;align-items:center;gap:12px;max-width:1200px;margin:0 auto;padding:10px 16px;display:flex}.top-bar-brand{flex-shrink:0;align-items:center;gap:10px;display:flex}.top-bar-logo{width:52px;height:auto}.top-bar-title h1{font-size:var(--font-base);background:linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 40%, #feca57 100%);-webkit-text-fill-color:transparent;letter-spacing:1px;white-space:nowrap;-webkit-background-clip:text;background-clip:text;font-weight:700}.top-bar-title p{display:none}.top-bar .slogan{color:var(--color-text-muted);font-size:var(--font-xs);white-space:nowrap;display:none}.hamburger{width:var(--tap-target);height:var(--tap-target);border-radius:var(--radius-sm);flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:5px;transition:background .2s;display:flex}.hamburger:active{background:#003aa714}.hamburger span{background:var(--color-primary);border-radius:2px;width:22px;height:2px;transition:all .3s;display:block}.hamburger.open span:first-child{transform:translateY(7px)rotate(45deg)}.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}.hamburger.open span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.header-wrapper{z-index:100;position:relative}.header{display:none}.nav-overlay{z-index:150;opacity:0;visibility:hidden;background:#0006;transition:opacity .3s,visibility .3s;position:fixed;inset:0}.nav-overlay.open{opacity:1;visibility:visible}.nav-drawer{z-index:151;background:#fff;flex-direction:column;width:min(280px,80vw);transition:transform .3s cubic-bezier(.22,1,.36,1);display:flex;position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:2px 0 20px #00000026}.nav-drawer.open{transform:translate(0)}.nav-drawer-header{border-bottom:1px solid #eee;align-items:center;gap:12px;padding:20px 16px;display:flex}.nav-drawer-header img{width:36px}.nav-drawer-header h2{font-size:var(--font-lg);color:var(--color-primary);font-weight:700}.nav-drawer-menu{flex:1;padding:8px 0;overflow-y:auto}.nav-drawer-item{width:100%;font-size:var(--font-xl);color:var(--color-text);text-align:left;min-height:var(--tap-target);border-radius:0;align-items:center;gap:12px;padding:14px 20px;font-weight:500;transition:background .15s;display:flex}.nav-drawer-item:active{background:#f0f4ff}.nav-drawer-item.active{color:var(--color-primary);background:#003aa70f;font-weight:600}.nav-drawer-item .icon-dot{background:var(--color-primary);opacity:0;border-radius:50%;width:8px;height:8px;transition:opacity .2s}.nav-drawer-item.active .icon-dot{opacity:1}.bottom-tabs{z-index:99;-webkit-backdrop-filter:blur(12px);background:#ffffffd9;border-bottom:1px solid #003aa714;display:flex;position:sticky;top:56px}.bottom-tabs::-webkit-scrollbar{display:none}.bottom-tab{font-size:var(--font-lg);color:var(--color-text-light);white-space:nowrap;min-height:var(--tap-target);flex:1;justify-content:center;align-items:center;padding:12px 6px;font-weight:600;transition:color .2s;display:flex;position:relative}.bottom-tab:active,.bottom-tab.active{color:var(--color-primary)}.bottom-tab.active:after{content:"";background:var(--color-primary);border-radius:3px 3px 0 0;height:3px;position:absolute;bottom:0;left:8px;right:8px}.mega-panel{border-radius:0 0 var(--radius-lg) var(--radius-lg);box-shadow:var(--shadow-lg);background:#fff;overflow:hidden}.mega-panel-clip{padding:20px 14px 180px}.megapanel-enter-active{transition:all .35s cubic-bezier(.22,1,.36,1)}.megapanel-leave-active{transition:all .25s 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h2{font-size:var(--font-2xl);color:var(--color-primary);letter-spacing:1px;margin-bottom:6px;font-weight:700}.hero-content p{font-size:var(--font-sm);color:#555;max-width:560px;line-height:1.7}.hero-count{color:var(--color-primary);font-size:var(--font-xs);background:#003aa712;border-radius:20px;margin-top:10px;padding:4px 14px;font-weight:500;display:inline-block}#content{max-width:1200px;min-height:300px;margin:0 auto;padding:20px 14px 60px}.venue-grid{grid-template-columns:1fr;gap:12px;display:grid}.venue-card-wrapper{position:relative}.venue-card{perspective:800px;cursor:pointer;-webkit-tap-highlight-color:transparent;height:170px}.card-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,0,.2,1);position:relative}.card-inner.flipped{transform:rotateY(180deg)}.card-front,.card-back{backface-visibility:hidden;border-radius:var(--radius);width:100%;height:100%;position:absolute;overflow:hidden}.card-front{box-shadow:var(--shadow-sm);background:linear-gradient(135deg,#234e8e 0%,#003aa7 40%,#0055d4 100%)}.card-front img{object-fit:cover;width:100%;height:100%}.card-front-icon{opacity:.5;position:absolute;top:36%;left:50%;transform:translate(-50%,-50%)}.card-front-icon-img{opacity:.45;filter:brightness(0)invert();position:absolute;top:38%;left:50%;transform:translate(-50%,-50%);width:72px!important;height:72px!important}.card-front-img{object-fit:cover;width:100%;height:100%}.card-front-label{color:#fff;font-size:var(--font-base);letter-spacing:1px;text-align:center;background:linear-gradient(#0000,#002255e6);padding:10px 14px;font-weight:700;position:absolute;bottom:0;left:0;right:0}.card-back{background:linear-gradient(145deg, var(--color-primary), var(--color-primary-light));color:#fff;text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:16px;display:flex;transform:rotateY(180deg)}.card-back h3{font-size:var(--font-lg);margin-bottom:6px;font-weight:700}.card-back p{font-size:var(--font-xs);opacity:.9;line-height:1.6}.card-flip-hint{color:#fff;pointer-events:none;background:#ffffff40;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:14px;transition:opacity .3s;display:flex;position:absolute;top:10px;right:10px}.card-inner.flipped .card-flip-hint{opacity:0}.camera-panel{border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow);opacity:0;background:#fff;max-height:0;margin-top:4px;transition:max-height .35s,opacity .25s,padding .35s;overflow:hidden}.camera-panel.open{opacity:1;max-height:600px}.camera-panel-inner{padding:0 16px}.camera-panel.open .camera-panel-inner{padding:14px 16px}.camera-panel h4{font-size:var(--font-sm);color:var(--color-primary);border-bottom:2px solid #eef2fb;margin-bottom:8px;padding-bottom:8px}.camera-list{flex-direction:column;gap:2px;display:flex}.camera-item{border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--font-sm);min-height:var(--tap-target);cursor:pointer;align-items:center;gap:10px;padding:12px;transition:background .15s;display:flex}.camera-item:active{color:var(--color-primary);background:#f0f4ff}.camera-item.camera-selected{color:var(--color-primary);background:#e8f0ff;font-weight:600}.camera-icon{color:var(--color-primary);flex-shrink:0;font-size:10px}.home-empty{text-align:center;padding:60px 20px}.home-empty 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var(--radius-lg) var(--radius-lg);border:1px solid #003aa726;max-width:1200px;margin:-1px auto 0}.mega-panel-clip{padding:28px 28px 180px}.venue-card-wrapper:hover{z-index:10}.camera-panel{border-radius:0 0 var(--radius) var(--radius);opacity:0;visibility:hidden;z-index:20;pointer-events:none;background:#fff;max-height:none;margin-top:0;transition:opacity .25s,visibility .25s;position:absolute;top:100%;left:0;right:0;box-shadow:0 12px 36px #0000002e}.camera-panel.open{opacity:1;visibility:visible;pointer-events:auto}.camera-panel-inner{padding:4px 18px 16px}.camera-item{cursor:pointer;pointer-events:auto}.camera-item:hover{color:var(--color-primary);background:#f0f4ff}.card-flip-hint{display:none}.hero-icon{opacity:.08;width:80px;height:80px;right:50px}.hero-content{padding:40px 48px}.hero-content h2{font-size:30px}.hero-content p{font-size:15px}.category-hero{min-height:180px}#content{padding:30px 24px 80px}.video-detail .play-btn{width:80px;height:80px}.video-detail .play-btn:before{border-top-width:15px;border-bottom-width:15px;border-left-width:25px}.video-detail .play-btn:hover{background:#003aa7f2;transform:translate(-50%,-50%)scale(1.1)}.footer-inner{flex-direction:row;justify-content:space-between;padding:0 24px}.footer-info a:hover{color:var(--color-primary)}.footer-qrcode:hover{opacity:.8}.home-empty-btn:hover{border-color:var(--color-primary);background:#f8faff}.video-detail .breadcrumb a:hover{color:var(--color-primary-light)}}@media (width>=1024px){.venue-grid{grid-template-columns:repeat(3,1fr);gap:16px}.venue-card{height:190px}.top-bar-logo{width:140px}.menu-item{padding:16px 32px 14px;font-size:17px}#content{padding:30px 20px 80px}}@media (width>=1200px){.venue-grid{grid-template-columns:repeat(4,1fr)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.player-overlay-topbar{color:#fff;background:#000000e6;flex-shrink:0;align-items:center;gap:12px;height:48px;padding:0 8px;display:flex}.player-overlay-back{color:#fff;cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.player-overlay-back:active{background:#ffffff26}.player-overlay-title{white-space:nowrap;text-overflow:ellipsis;color:#fff;font-size:16px;font-weight:600;overflow:hidden}.player-overlay-iframe{border:none;flex:1;width:100%;min-height:0}.player-overlay{z-index:99999;background:#000;flex-direction:column;display:flex;position:fixed;inset:0}.player-topbar{color:#fff;background:#111;flex-shrink:0;align-items:center;gap:12px;height:44px;padding:0 12px;display:flex}.player-back{color:#4a9eff;cursor:pointer;white-space:nowrap;padding:6px 8px;font-size:15px}.player-name{white-space:nowrap;text-overflow:ellipsis;font-size:14px;overflow:hidden}.player-frame{border:none;flex:1;width:100%;min-height:0}