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@media(max-width:760px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.side-rail{display:none}.topbar{left:0;padding:0 10px;grid-template-columns:minmax(70px,1fr) minmax(120px,1.3fr) minmax(70px,1fr)}.topbar-left{justify-content:flex-start}.topbar-right{justify-content:flex-end}.mobile-menu-button{display:inline-flex;padding:0 12px}.app-link{padding:0 12px}.topbar-logo{max-width:150px}.site-main{margin-left:0;padding:76px 16px 44px}.page-intro{padding-top:14px}.content-section{padding:20px;margin:20px 0}.site-footer{margin-left:0;padding:38px 16px calc(80px + env(safe-area-inset-bottom))}.footer-links-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid rgba(232,90,139,.14);z-index:150;display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{min-width:0;min-height:50px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:#8A4A62;font-size:11px}.mobile-bottom-nav a span{font-weight:900;font-size:15px;line-height:1}.mobile-bottom-nav a.is-current{color:#E85A8B}.overlay-panel{z-index:360}.ui-backdrop{z-index:350}.directory-layer{padding:16px}.directory-content{margin-top:18px}.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.directory-grid a{min-height:120px;padding:14px}.search-layer{padding:14px}.search-card{padding:18px;border-radius:20px}.search-presets{grid-template-columns:1fr}.polaroid-grid,.bookshelf,.number-focus,.status-grid,.letter-grid,.card-grid,.two-col,.contact-grid,.shelf-grid{grid-template-columns:1fr}.mood-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.notebook-list article,.weekly-item,.index-item,.step-item{grid-template-columns:48px 1fr}.hero-media .media-placeholder{min-height:150px}.section-head{align-items:flex-start;flex-direction:column}.app-section{gap:18px}}
@media(max-width:420px){.topbar{padding:0 8px}.mobile-menu-button,.app-link{font-size:13px;padding:0 9px}.topbar-logo{max-width:128px}.directory-grid{grid-template-columns:1fr 1fr}.directory-grid a{min-height:132px}.mood-grid{grid-template-columns:1fr}.footer-links-grid{grid-template-columns:1fr 1fr}.cover-card{padding:22px}.polaroid-card{transform:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.overlay-panel,.ui-backdrop{transition:none}}
/* 条款、帮助与品牌说明页面 */
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@media(max-width:760px){.page-head{padding-top:14px}.help-grid{grid-template-columns:1fr}.policy-card,.help-card,.notice-card,.quote-card{padding:20px}.about-flow article{grid-template-columns:46px 1fr;padding:20px}.about-no{font-size:24px}.faq-list details{padding:0 16px}.related-box{padding:20px}}
.media-frame>.media-placeholder{aspect-ratio:16/9;min-height:180px}