.header-inner{gap:24px}.nav{gap:26px}.header-dropdown{position:relative}.header-dropdown summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:9px;padding:12px 0;font-weight:500;white-space:nowrap}.header-dropdown summary::-webkit-details-marker{display:none}.header-dropdown summary span{font-size:16px;transition:transform .2s}.header-dropdown[open] summary{color:var(--accent)}.header-dropdown[open] summary span{transform:rotate(180deg)}.header-dropdown summary:focus-visible{outline:3px solid #9c7641;outline-offset:5px}.header-dropdown-panel{position:absolute;top:calc(100% + 12px);left:-20px;min-width:305px;max-width:calc(100vw - 32px);padding:12px;background:#fffefa;border:1px solid #e5e5de;border-radius:12px;box-shadow:0 16px 40px #193c5020;display:flex;flex-direction:column;gap:2px}.header-dropdown:last-child .header-dropdown-panel{left:auto;right:0}.nav .header-dropdown-panel a{display:block;padding:10px 12px;border-radius:7px;font-size:13px;line-height:1.5}.nav .header-dropdown-panel a:hover{background:#edf2f1;color:var(--indigo)}.nav .dropdown-overview{font-size:11px;font-weight:600;color:var(--accent);border-bottom:1px solid #e5e5de;border-radius:0;margin-bottom:6px;padding-bottom:13px}.topic-page{padding:70px 0 90px}.topic-intro{max-width:800px;margin-bottom:48px}.topic-intro h1{font-size:clamp(36px,5vw,64px);margin:18px 0 24px}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.topic-card{border:1px solid var(--line);background:#fffefa;border-radius:14px;padding:30px;scroll-margin-top:120px}.topic-card h2{font-size:26px;line-height:1.35;margin-bottom:16px}.topic-pending{font-size:13px}.topic-card .link-button{margin-top:20px}@media(max-width:1000px){.nav{gap:16px;font-size:12px}.brand strong{font-size:25px}}@media(max-width:800px){.header-inner{height:78px}.menu{display:block;font-size:12px}.nav{display:none;position:absolute;top:78px;left:0;right:0;background:var(--paper);padding:20px 6%;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:6px;max-height:calc(100dvh - 78px);overflow-y:auto;font-size:14px}.nav.open{display:flex}.header-dropdown summary{justify-content:space-between;padding:11px 0}.header-dropdown-panel,.header-dropdown:last-child .header-dropdown-panel{position:static;min-width:0;max-width:none;box-shadow:none;margin:0 0 12px;border-radius:8px;padding:6px}.nav>a{padding:11px 0}.topic-grid{grid-template-columns:1fr}.topic-page{padding-top:40px}.topic-card{padding:24px}}

.header-dropdown-panel{color:var(--ink)}