/* Shared case navigation: independent of each experiment's controls. */
html{scroll-padding-top:68px}
.bridge-case-switcher,.bridge-case-switcher *{box-sizing:border-box}
.bridge-case-switcher{position:sticky;top:0;z-index:1000;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 4%;background:#fff;border-bottom:1px solid #cbdce0;color:#18384a;font:14px/1.5 "Microsoft YaHei","PingFang SC",sans-serif;box-shadow:0 2px 9px #18384a0a}
.bridge-case-switcher a{text-decoration:none;color:#18384a}
.bridge-case-home{display:flex;align-items:center;gap:12px;font-weight:700;white-space:nowrap}
.bridge-case-home span{font-size:12px;font-weight:400;color:#607782}
.bridge-case-switcher details{position:relative;margin:0;padding:0;border:0;background:none}
.bridge-case-switcher summary{display:flex;align-items:center;gap:14px;padding:8px 12px;border:1px solid #cbdce0;border-radius:7px;background:#f5f9fa;color:#18384a;cursor:pointer;font-size:13px;list-style:none}
.bridge-case-switcher summary::-webkit-details-marker{display:none}
.bridge-case-switcher summary::after{content:"⌄";font-size:16px;line-height:1}
.bridge-case-switcher details[open] summary{border-color:#157b79;background:#edf7f5}
.bridge-case-switcher summary strong{color:#157b79;font-weight:600}
.bridge-case-menu{position:absolute;right:0;top:calc(100% + 10px);width:min(660px,92vw);max-height:calc(100dvh - 90px);overflow:auto;background:#fff;border:1px solid #c5d7dc;border-radius:12px;padding:18px;box-shadow:0 18px 50px #163b4b33;text-align:left}
.bridge-case-menu>p{margin:0 0 12px;color:#607782;font-size:12px;max-width:none}
.bridge-case-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.bridge-case-links a{display:flex;flex-direction:column;align-items:flex-start;gap:4px;min-width:0;padding:12px 14px;border:1px solid #dce6e9;border-radius:7px;background:#f9fbfc}
.bridge-case-links a>span{font-size:11px;color:#617984}
.bridge-case-links a>strong{font-size:15px;font-weight:600;color:#18384a}
.bridge-case-links a:hover{background:#eaf5f3;border-color:#157b79}
.bridge-case-links a[aria-current="page"]{background:#e3f2ee;border-color:#157b79}
.bridge-case-switcher a:focus-visible,.bridge-case-switcher summary:focus-visible{outline:3px solid #38a4be;outline-offset:3px}
@media(min-width:1001px){.bridge-case-switcher~main .stage{top:72px;height:min(720px,calc(100vh - 88px))}}
@media(max-width:550px){.bridge-case-switcher{padding:8px 12px;gap:8px}.bridge-case-home{font-size:13px}.bridge-case-home span{display:none}.bridge-case-switcher summary{gap:7px;padding:7px 9px;font-size:12px}.bridge-case-switcher summary strong{max-width:108px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bridge-case-menu{position:fixed;top:60px;left:12px;right:12px;width:auto;padding:12px}.bridge-case-links a{padding:10px;gap:3px}.bridge-case-links a>strong{font-size:14px}}