/* SI Club navigation and footer, shared with Insights pages. */
:root{--shared-header-height:72px}
body{padding-top:var(--shared-header-height)!important}
header.shared-header,header.shared-header.is-scrolled{position:fixed!important;inset:0 0 auto!important;height:var(--shared-header-height)!important;min-height:0!important;display:block!important;width:100%!important;padding:0!important;margin:0!important;z-index:100!important;background:rgba(11,44,48,.94)!important;border:0!important;border-bottom:1px solid rgba(255,255,255,.14)!important;backdrop-filter:blur(12px)!important;color:#f4f4f2!important}
.shared-header-inner{width:min(1280px,calc(100% - 68px));height:100%;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:32px}
.shared-header .shared-brand{font-family:"Cormorant Garamond","Noto Serif TC",serif!important;font-size:22px!important;font-weight:500;letter-spacing:.08em;color:#f4f4f2!important;text-decoration:none;white-space:nowrap}
.shared-header nav.shared-page-links{position:static!important;display:flex!important;align-items:center;gap:32px!important;padding:0!important;margin:0!important;background:none!important;box-shadow:none!important;width:auto!important;font-family:"Manrope","Noto Sans TC",sans-serif;font-size:14px}
.shared-header .shared-page-links a{position:relative;display:block;padding:12px 0!important;color:#c9c9c6!important;text-decoration:none;border:0!important;line-height:1.6;white-space:nowrap}
.shared-header .shared-page-links a[aria-current="page"]{color:#c49f68!important}
.shared-header .shared-page-links a[aria-current="page"]::after{content:"";position:absolute;bottom:3px;left:0;right:0;height:1px;background:#c49f68}
.shared-header .shared-page-links a:hover{color:#f4f4f2!important}
.shared-header a:focus-visible{outline:2px solid #c49f68;outline-offset:5px}
.shared-header button[hidden],nav.mobile-nav[hidden]{display:none!important}
html{scroll-padding-top:calc(var(--shared-header-height) + 20px)}
@media(max-width:640px){:root{--shared-header-height:108px}.shared-header-inner{width:calc(100% - 40px);flex-direction:column;align-items:flex-start;justify-content:center;gap:4px}.shared-header .shared-brand{font-size:20px!important}.shared-header nav.shared-page-links{width:100%!important;justify-content:space-between;gap:16px!important;font-size:13px}}

/* Transparent three-column brand navigation. */
header.shared-header,header.shared-header.is-scrolled{background:transparent!important;border:0!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;--nav-text:#f4f4f2;--nav-active:#e1bd80}
.shared-header-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:24px}
.shared-header .shared-brand{justify-self:start;color:var(--nav-text)!important}
.shared-header nav.shared-page-links{justify-self:center;justify-content:center}
.shared-header .shared-wordmark{justify-self:end;font-family:"Cormorant Garamond","Noto Serif TC",serif;font-size:22px;letter-spacing:.035em;text-decoration:none;white-space:nowrap;color:var(--nav-text)}
.shared-header .shared-page-links a{color:var(--nav-text)!important;font-weight:500;text-shadow:0 1px 8px rgba(0,0,0,.32)}
.shared-header .shared-brand,.shared-wordmark{text-shadow:0 1px 8px rgba(0,0,0,.32)}
.shared-header .shared-page-links a[aria-current="page"]{color:var(--nav-active)!important}
.shared-header .shared-page-links a[aria-current="page"]::after{background:var(--nav-active)}
header.shared-header.is-over-light{--nav-text:#173b40;--nav-active:#785b2a}
.shared-header.is-over-light a{text-shadow:0 1px 8px rgba(255,255,255,.5)!important}
.back-to-top{position:fixed;right:max(24px,env(safe-area-inset-right));bottom:max(24px,env(safe-area-inset-bottom));z-index:95;display:grid;place-items:center;width:46px;height:46px;padding:0;border:1px solid rgba(224,214,188,.45);border-radius:50%;background:rgba(11,44,48,.75);color:#edcf9a;box-shadow:0 8px 24px rgba(0,0,0,.2);backdrop-filter:blur(8px);cursor:pointer}
.back-to-top svg{width:23px;height:23px}
.back-to-top:hover{background:rgba(22,66,70,.95);color:#fff}
.back-to-top:focus-visible{outline:2px solid #c49f68;outline-offset:5px}
@media(max-width:640px){.shared-header-inner{grid-template-columns:1fr 1fr;align-content:center;gap:4px 12px}.shared-header .shared-wordmark{font-size:18px}.shared-header nav.shared-page-links{grid-column:1 / -1;grid-row:2;justify-self:center;width:auto!important;gap:28px!important}.back-to-top{right:18px;bottom:18px;width:44px;height:44px}}

/* Solid shared header and more generous centered navigation spacing. */
header.shared-header,header.shared-header.is-scrolled,header.shared-header.is-over-light{background:#0b2c30!important;--nav-text:#f4f4f2;--nav-active:#e1bd80;border-bottom:1px solid rgba(255,255,255,.12)!important}
.shared-header nav.shared-page-links{gap:clamp(40px,5vw,72px)!important}
.shared-header a,.shared-header.is-over-light a{text-shadow:none!important}
@media(max-width:640px){.shared-header nav.shared-page-links{gap:36px!important}}

/* Page palettes and reading-mode header. */
header.shared-header{--header-bg:#0b2c30;--header-ink:#f4f4f2;--header-accent:#e1bd80}
header.shared-header[data-page="club"]{--header-bg:#f4f7f6;--header-ink:#173b40;--header-accent:#785b2a}
header.shared-header[data-page="art"]{--header-bg:#171b1b;--header-ink:#ede8de;--header-accent:#d8bc88}
header.shared-header,header.shared-header.is-scrolled,header.shared-header.is-over-light{background:var(--header-bg)!important;--nav-text:var(--header-ink);--nav-active:var(--header-accent);border-bottom:1px solid transparent!important;transition:background-color 200ms cubic-bezier(.2,0,0,1)}
.shared-header nav.shared-page-links{opacity:1;visibility:visible;transform:translateY(0);transition:opacity 180ms ease,transform 200ms cubic-bezier(.2,0,0,1),visibility 0s}
header.shared-header.is-reading{background:transparent!important;pointer-events:none;--nav-text:#f4f4f2;--nav-active:#e1bd80}
header.shared-header.is-reading.is-over-light{--nav-text:#173b40}
.shared-header.is-reading .shared-brand,.shared-header.is-reading .shared-wordmark{pointer-events:auto;text-shadow:0 1px 8px rgba(0,0,0,.35)!important}
.shared-header.is-reading.is-over-light .shared-brand,.shared-header.is-reading.is-over-light .shared-wordmark{text-shadow:0 1px 8px rgba(255,255,255,.6)!important}
.shared-header.is-reading nav.shared-page-links{opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;transition:opacity 180ms ease,transform 200ms cubic-bezier(.2,0,0,1),visibility 0s 200ms}
@media(prefers-reduced-motion:reduce){header.shared-header,.shared-header nav.shared-page-links{transition:none!important;transform:none!important}}

/* Hide the complete header while reading downward. */
header.shared-header{opacity:1;visibility:visible;transform:translateY(0);transition:opacity 180ms ease,transform 200ms cubic-bezier(.2,0,0,1),background-color 200ms ease,visibility 0s}
header.shared-header.is-reading{opacity:0;visibility:hidden;transform:translateY(-8px);pointer-events:none;transition:opacity 180ms ease,transform 200ms cubic-bezier(.2,0,0,1),background-color 200ms ease,visibility 0s 200ms}
.shared-header.is-reading .shared-brand,.shared-header.is-reading .shared-wordmark{pointer-events:none}
@media(prefers-reduced-motion:reduce){header.shared-header,header.shared-header.is-reading{transition:none!important;transform:none!important}}

/* Retain compact brand signatures while the central navigation fades. */
header.shared-header.is-reading{opacity:1;visibility:visible;transform:none;background:transparent!important;pointer-events:none;--nav-text:#f4f4f2}
header.shared-header.is-reading.is-over-light{--nav-text:#173b40}
.shared-header .shared-brand,.shared-header .shared-wordmark{display:flex;align-items:center;min-height:32px;line-height:1.4;transition:font-size 200ms cubic-bezier(.2,0,0,1)}
.shared-header.is-reading .shared-brand,.shared-header.is-reading .shared-wordmark{font-size:16px!important;line-height:1.4!important;min-height:32px;align-self:center;pointer-events:auto;color:var(--nav-text)!important;text-shadow:0 1px 8px rgba(0,0,0,.3)!important}
.shared-header.is-reading.is-over-light .shared-brand,.shared-header.is-reading.is-over-light .shared-wordmark{text-shadow:0 1px 8px rgba(255,255,255,.6)!important}
@media(max-width:640px){.shared-header.is-reading .shared-header-inner{grid-template-columns:1fr 1fr;grid-template-rows:1fr;align-content:center}.shared-header.is-reading .shared-brand{grid-column:1;grid-row:1}.shared-header.is-reading .shared-wordmark{grid-column:2;grid-row:1}.shared-header.is-reading nav.shared-page-links{position:absolute!important}.shared-header.is-reading .shared-brand,.shared-header.is-reading .shared-wordmark{font-size:15px!important}}
@media(prefers-reduced-motion:reduce){.shared-header .shared-brand,.shared-header .shared-wordmark{transition:none}}

/* Compact typography from the initial header state. */
.shared-header .shared-brand,.shared-header .shared-wordmark{font-size:16px!important;line-height:1.4!important;min-height:32px;align-self:center}
.shared-header nav.shared-page-links{font-size:12px!important}
.shared-header .shared-page-links a{font-size:12px!important;line-height:1.4!important}
@media(max-width:640px){.shared-header .shared-brand,.shared-header .shared-wordmark{font-size:15px!important}.shared-header nav.shared-page-links,.shared-header .shared-page-links a{font-size:12px!important}}


header.shared-header[data-page="club"]{--header-bg:#fcf8fa;--header-ink:#30373d;--header-accent:#9b5774}
.back-to-top{background:rgba(252,248,250,.96);border-color:#e2d3dc;color:#925570;box-shadow:0 8px 24px rgba(78,57,68,.1)}
.back-to-top:hover{background:#f4e8ee;color:#814a62}
.shared-club-footer{padding:55px 0 24px;background:#f7f4f6;border-top:1px solid #e8e5e8;color:#30373d;text-align:left;font-family:"Manrope","Noto Sans TC",sans-serif;font-size:16px;line-height:1.85}
.shared-club-footer *{box-sizing:border-box}.shared-club-footer a{color:inherit;text-decoration:none}.shared-club-footer a:focus-visible{outline:3px solid #985873;outline-offset:5px}
.shared-club-footer .shell{width:min(1200px,calc(100% - 64px));margin:auto}
.shared-club-footer .brand{display:flex;align-items:center;gap:12px;font-family:"Cormorant Garamond","Noto Serif TC",serif;font-size:19px;letter-spacing:.08em;white-space:nowrap}
.shared-club-footer .mark{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;color:white;background:linear-gradient(135deg,#c7a0b0,#6ca6b1);font:12px "Manrope","Noto Sans TC",sans-serif}
.shared-club-footer .brand small{display:block;font:10px "Manrope","Noto Sans TC",sans-serif;letter-spacing:.16em;color:#6c737b}
.shared-club-footer .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:55px}
.shared-club-footer .footer-grid p{font-size:12px;color:#6c737b;margin:18px 0;line-height:1.85}
.shared-club-footer .footer-grid h3{font:14px "Manrope","Noto Sans TC",sans-serif;letter-spacing:.08em;margin:0 0 16px}
.shared-club-footer .footer-links{display:grid;gap:8px;font-size:12px;color:#6c737b}
.shared-club-footer .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #e8e5e8;padding-top:22px;margin-top:40px;font-size:10px;color:#6c737b}
@media(max-width:800px){.shared-club-footer .shell{width:calc(100% - 40px)}.shared-club-footer .footer-grid{grid-template-columns:2fr 1fr;gap:30px}.shared-club-footer .footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:540px){.shared-club-footer .brand{font-size:16px}.shared-club-footer .copyright{flex-direction:column;gap:6px}}