:root{--bg:#F6EDE0;--deep:#EAD7C0;--card:#FFFFFF;--secondary:#E8D2B4;--title:#3A2414;--text:#4A3220;--muted:#7A5634;--soft:#9A7450;--brand:#C4843C;--bright:#D9A05A;--dark:#8B5A2B;--ivory:#FFF6EA;--border:rgba(196,132,60,.18);--border-strong:rgba(196,132,60,.46);--shadow:0 12px 28px rgba(58,36,20,.08);--radius:10px;--max:960px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0}
img{max-width:100%;display:block}
.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:var(--card);padding:8px 12px;border-radius:8px;border:1px solid var(--border-strong)}
.skip-link:focus{top:10px}
.top-strip{position:fixed;z-index:120;top:0;left:0;right:0;height:20px;background:var(--dark);color:var(--ivory);font-size:12px}
.top-strip__inner,.brand-header__inner,.quick-nav__inner{max-width:var(--max);margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 16px}
.text-button{background:transparent;color:var(--ivory);height:20px;padding:0 8px;cursor:pointer}
.brand-header{position:fixed;z-index:119;top:20px;left:0;right:0;height:54px;background:var(--card);border-bottom:1px solid var(--border)}
.brand-link{min-height:44px;display:inline-flex;align-items:center;font-size:16px;font-weight:800;color:var(--title)}
.brand-link img{height:24px;width:auto;object-fit:contain}
.brand-actions{display:flex;gap:8px;align-items:center}
.header-app-link,.menu-button{height:44px;min-width:44px;padding:0 14px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px}
.header-app-link{border:1px solid var(--border-strong);background:var(--card);color:var(--title)}
.menu-button{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--dark) 100%);color:var(--ivory)}
.quick-nav{position:fixed;z-index:118;top:74px;left:0;right:0;height:44px;background:var(--ivory);border-bottom:1px solid var(--border)}
.quick-nav__inner{justify-content:flex-start;gap:12px}
.quick-nav__item{height:34px;padding:0 12px;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border-strong);border-radius:999px;color:var(--title);font-size:13px;background:var(--card)}
.quick-nav__mark{width:18px;height:14px;border:1px solid var(--brand);border-radius:5px;display:block}
.quick-nav__item.is-current{background:var(--brand);color:var(--ivory)}
.quick-nav__item.is-current .quick-nav__mark{background:var(--ivory);border-color:var(--ivory)}
.site-main{max-width:var(--max);margin:0 auto;padding:150px 16px 64px;min-height:70vh}
h1,h2,h3{color:var(--title);margin-top:0}
h1{font-size:24px;line-height:1.3;margin-bottom:14px}
h2{font-size:20px;line-height:1.4;margin-bottom:12px}
h3{font-size:16px;line-height:1.5;margin-bottom:8px}
p{margin:0 0 14px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.eyebrow{font-size:13px;color:var(--brand);font-weight:800;letter-spacing:.08em;margin-bottom:8px}
.page-head{padding:24px 0 18px;border-bottom:1px solid var(--border);margin-bottom:22px}
.page-head--compact{padding-top:8px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap;border:1px solid transparent;min-width:44px}
.btn--primary{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--dark) 100%);color:var(--ivory)}
.btn--secondary{background:var(--card);border-color:var(--border-strong);color:var(--title)}
a:hover,.text-button:hover,.menu-button:hover,.icon-close:hover{filter:brightness(.97)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(196,132,60,.32);outline-offset:3px}
.media-slot{background:var(--ivory);border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-wide{width:100%;height:168px}
.media-wide.small{height:160px}
.media-knot{width:240px;height:176px}
.media-app{width:240px;height:320px}
.media-banner{width:100%;height:200px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.section{margin:0 0 28px}
.section-soft{background:var(--ivory);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:28px}
.tag{display:inline-flex;min-height:30px;align-items:center;padding:4px 10px;border:1px solid var(--border-strong);border-radius:999px;background:var(--card);color:var(--muted);font-size:13px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
.muted{color:var(--muted)}
.notice{border-left:4px solid var(--brand);background:var(--ivory);padding:14px 16px;border-radius:0 10px 10px 0;color:var(--muted)}
/* 首页 */
.home-intro{padding:14px 0 26px}.home-index{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.home-index a{font-size:13px;padding:6px 10px;border:1px solid var(--border);background:var(--card);border-radius:999px}.home-cut{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:center;background:var(--card);padding:22px;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}
.home-two{display:grid;grid-template-columns:1fr 1fr;gap:16px}.home-note{padding:18px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}.home-note:first-child{box-shadow:var(--shadow)}
.home-pages{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.home-pages article{background:var(--card);padding:18px;border-radius:var(--radius);border:1px solid var(--border)}
.home-single{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}.home-single__body{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center}
.home-app{display:flex;gap:22px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.home-app__visual{display:flex;gap:12px;align-items:flex-start;flex:0 0 auto}.home-app__icon{width:48px;height:48px;background:var(--ivory);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center}.home-app__icon img{width:48px;height:48px;object-fit:contain}.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-mini article{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
/* 内页独立版式 */
.dual-wheat{display:grid;grid-template-columns:1fr 1fr;gap:18px}.dual-wheat article{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.dual-wheat article:nth-child(2n){background:var(--ivory)}
.cut-layout{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}.cut-rail{position:sticky;top:136px}.cut-body{display:grid;gap:16px}.cut-body section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.page-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.page-pair article{min-height:210px;background:var(--card);padding:20px;border:1px solid var(--border);border-radius:var(--radius)}.page-pair article:nth-child(3n){grid-column:1/-1;background:var(--ivory)}
.studio-flow{display:grid;gap:14px}.studio-step{display:grid;grid-template-columns:150px 1fr;gap:18px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.studio-step h2{margin:0}.studio-step__label{font-weight:800;color:var(--brand)}
.focus-list{display:grid;gap:12px}.focus-list article{display:grid;grid-template-columns:130px 1fr;gap:18px;padding:18px;background:var(--card);border-left:5px solid var(--brand);border-radius:0 var(--radius) var(--radius) 0;box-shadow:var(--shadow)}
.status-list{display:grid;gap:12px}.status-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:16px 18px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}.status-badge{font-size:13px;padding:5px 10px;border-radius:999px;background:var(--secondary);color:var(--title)}
.memo-list{counter-reset:memo;display:grid;gap:14px}.memo-list article{counter-increment:memo;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 18px 18px 64px;position:relative}.memo-list article:before{content:counter(memo);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;background:var(--brand);color:var(--ivory);display:flex;align-items:center;justify-content:center;font-weight:800}
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.method-grid section{padding:18px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}
.album-list{display:grid;gap:14px}.album-item{display:flex;gap:18px;align-items:flex-start;background:var(--card);padding:18px;border:1px solid var(--border);border-radius:var(--radius)}.album-item__label{flex:0 0 128px;color:var(--brand);font-weight:800}
.shelf-center{max-width:760px;margin:0 auto;text-align:center}.shelf-center .card{text-align:left;margin-bottom:16px}.shelf-center .tag-row{justify-content:center}
.app-wrap{display:flex;gap:24px;align-items:flex-start}.app-copy{min-width:0}.app-copy .card{margin-bottom:14px}.app-icon-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}.app-icon-row img{width:48px;height:48px;object-fit:contain;border-radius:12px}
.install-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.install-steps section{background:var(--card);padding:18px;border:1px solid var(--border);border-radius:var(--radius)}
.terms{display:grid;gap:16px}.terms section{background:var(--card);padding:20px;border:1px solid var(--border);border-radius:var(--radius)}.terms section h2{padding-bottom:10px;border-bottom:1px solid var(--border)}
.help-hub{display:grid;grid-template-columns:1fr 1fr;gap:16px}.help-hub article{background:var(--card);padding:18px;border:1px solid var(--border);border-radius:var(--radius)}
.faq-list{display:grid;gap:12px}.faq-list details{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:0 18px}.faq-list summary{cursor:pointer;font-weight:800;color:var(--title);padding:16px 0;min-height:50px}.faq-list p{padding:0 0 18px;margin:0;color:var(--text)}
.contact-list{display:grid;gap:14px}.contact-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.contact-item h2{display:flex;align-items:center;gap:10px}.contact-item h2:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--brand)}
.about-banner{margin-bottom:22px}.about-statement{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.about-statement section{background:var(--card);padding:20px;border:1px solid var(--border);border-radius:var(--radius)}.about-statement section:first-child{grid-row:span 2}
.site-footer{background:var(--dark);color:var(--ivory);border-top:1px solid rgba(255,246,234,.35);font-size:13px;padding:30px 0 72px}
.site-footer__inner{max-width:var(--max);margin:0 auto;padding:0 16px}.footer-brand{display:flex;gap:12px;align-items:center;padding-bottom:18px;border-bottom:1px solid rgba(255,246,234,.28)}.footer-brand__logo{height:24px;display:inline-flex;align-items:center}.footer-brand__logo img{height:24px;width:auto;object-fit:contain}.footer-brand div{display:flex;gap:10px;align-items:baseline}.footer-brand strong{font-size:16px}.footer-brand span{opacity:.82}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:20px 0}.footer-links section{display:flex;flex-direction:column;gap:7px}.footer-links h2{font-size:13px;color:var(--ivory);margin:0 0 5px}.footer-links a{color:var(--ivory);opacity:.88}.footer-note{padding-top:16px;border-top:1px solid rgba(255,246,234,.28);opacity:.9}.footer-copy{opacity:.75;margin-bottom:0}
.ui-overlay{position:fixed;inset:0;z-index:200;background:rgba(58,36,20,.28);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.ui-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.ui-locked{overflow:hidden}
.menu-sheet{position:fixed;z-index:220;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--border-strong);box-shadow:0 -18px 44px rgba(58,36,20,.16);max-height:220px;overflow:auto;padding:12px 16px 18px;transform:translateY(104%);visibility:hidden;pointer-events:none;transition:.22s}.menu-sheet[aria-hidden="false"]{transform:translateY(0);visibility:visible;pointer-events:auto}.menu-sheet__head{max-width:var(--max);margin:0 auto 10px;display:flex;align-items:center;justify-content:space-between}.menu-sheet__brand{display:flex;align-items:center;gap:8px}.menu-sheet__brand img{height:24px;width:auto;object-fit:contain}.icon-close{min-height:44px;padding:0 12px;border-radius:8px;background:var(--ivory);color:var(--title);cursor:pointer}.menu-sheet__grid{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1.1fr 1.1fr .8fr 1.2fr;gap:16px}.menu-sheet__grid h2{font-size:13px;margin:0 0 6px}.menu-sheet__grid a{display:block;margin:4px 0;padding:3px 0}.menu-sheet__grid b{font-size:13px;margin-right:6px}.menu-sheet__grid span{font-size:12px;color:var(--muted)}
.search-panel{position:fixed;z-index:221;left:0;right:0;top:74px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel[aria-hidden="false"]{visibility:visible;pointer-events:auto;opacity:1}.search-panel__inner{max-width:var(--max);margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow);padding:18px}.search-panel__head{display:flex;justify-content:space-between;align-items:center}.search-links{display:flex;flex-wrap:wrap;gap:10px}.search-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--border-strong);border-radius:999px;background:var(--ivory)}
.mobile-tabbar{display:none}
@media(max-width:720px){
  .quick-nav{display:none}.site-main{padding-top:100px;padding-bottom:88px}.top-strip__inner,.brand-header__inner{padding:0 16px}.brand-actions{gap:6px}.header-app-link,.menu-button{padding:0 10px}
  .home-cut,.home-single__body,.cut-layout,.dual-wheat,.page-pair,.method-grid,.install-steps,.help-hub,.about-statement{grid-template-columns:1fr}.cut-rail{position:static}.home-cut .media-knot{width:100%;height:176px}.home-two,.faq-mini{grid-template-columns:1fr}.home-app,.app-wrap{flex-direction:column}.home-app__visual{width:100%;justify-content:flex-start}.media-app{width:240px;max-width:100%}.studio-step,.focus-list article,.status-row{grid-template-columns:1fr}.album-item{flex-direction:column}.album-item__label{flex-basis:auto}.page-pair article:nth-child(3n){grid-column:auto}
  .footer-links{grid-template-columns:1fr 1fr}.footer-brand div{flex-direction:column;gap:0}.site-footer{padding-bottom:84px}
  .mobile-tabbar{display:grid;position:fixed;z-index:150;left:0;right:0;bottom:0;grid-template-columns:repeat(4,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--card);border-top:1px solid var(--border)}.mobile-tabbar a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-tabbar a.is-current{background:var(--brand);color:var(--ivory)}
  .menu-sheet{max-height:68vh;padding-bottom:calc(58px + env(safe-area-inset-bottom))}.menu-sheet__grid{grid-template-columns:1fr 1fr}.menu-sheet__grid span{display:none}
  .search-panel{top:0;bottom:0;background:var(--dark);color:var(--ivory)}.search-panel__inner{height:100%;max-width:none;background:var(--dark);color:var(--ivory);border:0;border-radius:0;padding:84px 16px 70px}.search-panel__head strong{font-size:20px}.search-panel .icon-close{background:var(--ivory)}.search-panel p{color:var(--ivory)}.search-links{display:grid;grid-template-columns:1fr 1fr}.search-links a{background:transparent;border-color:rgba(255,246,234,.55);color:var(--ivory)}
}
@media(max-width:420px){.footer-links,.menu-sheet__grid{grid-template-columns:1fr}.menu-sheet__grid section{padding-bottom:8px;border-bottom:1px solid var(--border)}.menu-sheet__grid a{display:inline-block;margin-right:12px}.brand-link img{max-width:126px}.header-app-link{font-size:13px}.page-head{padding-top:12px}}