:root{font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Noto Sans CJK SC,Microsoft YaHei,sans-serif;color:#1d1d1f;background:#f0f1f3;font-size:14px;letter-spacing:0;--blue: #1768a6;--muted: #737378;--line: #e8e8ed;--surface: #f5f5f7}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer;background:none;color:inherit;-webkit-tap-highlight-color:transparent}button:disabled{opacity:.45;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--blue);outline-offset:3px}h1,h2,h3,p{margin:0}svg{flex-shrink:0}img{display:block;width:100%;object-fit:cover}.chat-inbox{padding:24px 0 12px;border-bottom:1px solid #e5e5eb}.chat-inbox h2{font-size:20px;margin-bottom:12px}.chat-empty{color:#73737c;padding:20px 0;text-align:center;font-size:14px}.chat-inbox-row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:16px 0;border-bottom:1px solid #eee;min-height:76px}.chat-inbox-row>span{flex:1;min-width:0;display:grid;gap:4px}.chat-inbox-row strong,.chat-inbox-row span>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:400}.chat-inbox-row small{color:#76767d;margin-left:8px;font-weight:400}.chat-inbox-row em{color:#b34246;font-size:13px;font-style:normal;font-weight:700}.chat-login,.chat-contact button,.chat-tools button{display:inline-flex;align-items:center;gap:8px;color:var(--blue);min-height:44px}.chat-contact{padding:8px 24px;border-top:1px solid #eee}.chat-contact small{display:block;color:#74747c;font-size:12px}.chat-thread{display:flex;flex-direction:column;height:min(660px,70dvh);min-height:240px;padding:0 16px max(8px,env(safe-area-inset-bottom))}.chat-context{display:grid;gap:4px;padding-bottom:12px;border-bottom:1px solid #e5e5eb}.chat-context span{font-size:14px;overflow-wrap:anywhere}.chat-context small{color:#72727a}.chat-history{flex:1;overflow-y:auto;min-height:80px;overscroll-behavior:contain;padding:12px 0}.chat-message{display:flex;flex-direction:column;align-items:flex-start;margin:0 0 16px}.chat-message>div{max-width:88%;border-radius:8px;padding:10px 12px;background:#f1f2f4;overflow-wrap:anywhere}.chat-message.is-mine{align-items:flex-end}.chat-message.is-mine>div{background:#e6f1f9}.chat-message p{white-space:pre-wrap;margin:0;font-size:15px;line-height:1.55}.chat-message time{font-size:11px;color:#777780;margin-top:4px}.chat-place-label{display:flex;align-items:center;gap:6px;font-size:13px;margin-bottom:6px;color:#53666b}.chat-use-place{display:flex;align-items:center;gap:4px;min-height:44px;color:var(--blue);font-size:13px}.chat-tools{display:flex;justify-content:space-between;border-top:1px solid #e5e5eb;flex-wrap:wrap}.chat-compose{display:flex;gap:8px;align-items:center;padding:8px 0}.chat-compose textarea{resize:none;flex:1;height:64px;font-size:16px}.chat-compose button{width:44px;height:44px;flex-shrink:0;color:var(--blue);display:grid;place-items:center}.chat-place-form{display:flex;gap:8px;align-items:flex-end}.chat-place-form label{flex:1;min-width:0}.chat-place-form button{flex-shrink:0}.app-shell{max-width:520px;min-height:100dvh;margin:auto;background:#fff}main{padding-bottom:calc(100px + env(safe-area-inset-bottom))}.market-header{padding:8px 24px 0}.topline{display:flex;align-items:center;justify-content:space-between;height:46px}.campus-status{display:flex;align-items:center;gap:8px;min-height:44px;font-size:18px;color:var(--blue);cursor:default}.campus-status strong{display:inline-block;font-weight:650;line-height:1.4;animation:campus-change .65s ease-out}.campus-status.is-all{color:#303b45}@keyframes campus-change{0%{opacity:.35;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.brand-row{display:flex;align-items:center;justify-content:space-between;padding:15px 0 22px}.brand{font-size:30px;font-weight:700;line-height:1.35}.brand>span{color:var(--blue);margin-left:1px}.search{height:44px;display:flex;align-items:center;gap:8px;background:var(--surface);color:#88888e;border-radius:8px;padding:0 6px 0 12px}.search input{background:none;border:0;outline:none;min-width:0;flex:1;color:#1d1d1f;font-size:16px}.search input::placeholder{color:#818187}.search button{height:38px;width:34px;display:grid;place-items:center;padding:0}.search-submit{color:var(--blue)}.clear-search{color:#888}.category-row{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));padding:20px 20px 18px;gap:6px;border-bottom:1px solid #f0f0f2}.category-row button{display:flex;flex-direction:column;align-items:center;gap:8px;min-height:58px;padding:0;font-size:11px;color:#717176}.category-row button>span{height:30px;display:grid;place-items:center}.category-row button.chosen{color:var(--blue);font-weight:600}.category-row button.chosen:after{content:"";width:4px;height:4px;background:var(--blue);border-radius:50%}.category-row button:not(.chosen):after{content:"";width:4px;height:4px}.feed{padding:0 24px}.section-heading{display:flex;align-items:center;justify-content:space-between;padding-top:18px}.section-heading h2{display:flex;align-items:baseline;gap:10px;font-size:21px;font-weight:650}.feed-tabs{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 0 19px}.feed-tabs [role=tablist]{display:grid;grid-template-columns:repeat(2,1fr);background:#f1f1f3;padding:3px;border-radius:7px;width:188px;height:35px}.feed-tabs [role=tab]{position:relative;font-size:11px;color:#6d6d73;padding:0;isolation:isolate}.feed-tabs [role=tab]>span:last-child{position:relative;z-index:1}.feed-tabs [role=tab].active{color:#1d1d1f;font-weight:600}.segment-indicator{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:5px;background:#fff;box-shadow:0 1px 4px #00000012}.free-toggle{display:flex;flex-direction:row;align-items:center;gap:4px;font-size:11px;color:#577360;font-weight:400;min-height:40px;white-space:nowrap;cursor:pointer}.free-toggle input{width:13px;height:13px;margin:0 1px 0 0;accent-color:#50725c;min-height:auto}.active-filters{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:15px;padding:0 9px;background:#eef4f9;border-radius:5px;color:var(--blue);font-size:11px}.active-filters>span{overflow-wrap:anywhere}.active-filters button{min-height:36px;display:flex;gap:4px;align-items:center;flex-shrink:0}.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px;align-items:start}.product{min-width:0}.product-visual{position:relative}.product-open{display:block;width:100%;padding:0;text-align:left}.product-image{aspect-ratio:1 / 1.12;background:var(--surface);overflow:hidden;border-radius:8px}.product-image img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}@media(hover:hover){.image-button:hover img{transform:scale(1.035)}}.save{position:absolute;top:7px;right:7px;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;color:#55555b;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.save.saved{color:#b84f55}.save.saved svg{fill:#b84f55}.product-copy{padding-top:12px}.item-meta{display:flex;align-items:center;gap:6px;font-size:10px;color:#77777d;margin-bottom:5px}.item-meta>span:first-child{color:#54715d}.item-meta>span+span:before{content:"·";padding-right:6px;color:#999}.product h3{font-size:13px;line-height:1.6;font-weight:550;height:42px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow-wrap:anywhere}.price-line{margin-top:8px}.price{font-size:20px;line-height:1.3;font-weight:650;color:#1d1d1f;font-variant-numeric:tabular-nums}.price small{font-size:12px;font-weight:500;margin-right:3px}.free-price{color:#52725c;font-size:17px}.seller{display:flex;align-items:center;gap:5px;margin-top:12px;color:#77777d;font-size:10px;min-width:0}.seller>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.avatar{display:grid;place-items:center;border-radius:50%;width:19px;height:19px;font-size:9px;color:#59595d;flex-shrink:0}.location{display:flex;align-items:center;gap:5px;color:#77777d;font-size:10px;margin-top:7px}.end-note{color:#85858b;padding:35px 0 10px;font-size:10px;display:flex;gap:5px;align-items:center;justify-content:center}.bottom-nav{position:fixed;z-index:10;left:50%;bottom:0;transform:translate(-50%);max-width:520px;width:100%;height:calc(76px + env(safe-area-inset-bottom));padding:8px 15px calc(8px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(5,1fr);background:#ffffffdf;border-top:1px solid #e8e8eda8;-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.bottom-nav button{display:flex;align-items:center;flex-direction:column;gap:5px;padding:5px 0 0;color:#818187}.bottom-nav button>span{height:25px;display:grid;place-items:center}.bottom-nav small{font-size:10px}.bottom-nav .selected{color:var(--blue)}.bottom-nav .publish-nav{color:var(--blue);padding-top:0;gap:3px}.bottom-nav .publish-nav>span{width:35px;height:33px;border-radius:8px;background:var(--blue);color:#fff}.primary{background:var(--blue);color:#fff;padding:13px 20px;min-height:46px;border-radius:7px;font-weight:500}.primary:not(:disabled):hover{background:#10558a}.empty{padding:46px 12px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:15px;color:#7b7b81}.empty h3{font-size:17px;color:#333}.empty p{font-size:12px;line-height:1.7}.loading{min-height:240px;display:flex;align-items:center;justify-content:center;gap:10px;color:#7b7b81;font-size:12px}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;z-index:100;bottom:105px;left:50%;transform:translate(-50%);padding:13px 18px;border-radius:8px;background:#242426ee;color:#fff;max-width:calc(100% - 40px);width:max-content;font-size:12px;text-align:center;box-shadow:0 6px 24px #0002}.overlay{position:fixed;z-index:30;top:0;right:0;bottom:0;left:0;background:#0005;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fade-in .18s ease-out}.modal{position:fixed;z-index:31;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:520px;max-height:92dvh;background:#fff;border-radius:8px 8px 0 0;overflow:auto;padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -8px 50px #0001;animation:sheet-in .26s cubic-bezier(.2,.8,.2,1)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes sheet-in{0%{opacity:0;translate:0 25px}to{opacity:1;translate:0 0}}.modal-top{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:8px 20px;min-height:62px;background:#fffffff2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-bottom:1px solid #eee}.modal-top h2{font-size:16px;font-weight:600}.modal-top button{display:grid;place-items:center;width:40px;height:40px;color:#7a7a80;border-radius:50%}.detail-photo{height:340px;background:var(--surface)}.detail-photo img{height:100%;object-fit:contain}.detail-content{padding:22px}.detail-price{display:flex;align-items:center;gap:12px}.detail-price .price{font-size:28px}.detail-price del{font-size:11px;color:#818187}.detail-price>span:last-child:not(.price){margin-left:auto;color:#52725c;font-size:11px}.detail-content h2{margin:14px 0;font-size:21px;line-height:1.5;font-weight:600}.detail-location{display:flex;align-items:center;gap:5px;color:#77777d;font-size:12px}.detail-seller{display:flex;align-items:center;gap:8px;margin:24px 0 16px;padding-top:20px;border-top:1px solid var(--line)}.detail-seller .avatar{width:33px;height:33px;font-size:13px}.detail-seller b{font-size:12px;font-weight:500}.detail-seller>span:last-child{margin-left:auto;font-size:10px;color:#77777d}.description{color:#56565c;font-size:13px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.safety{display:flex;gap:10px;margin-top:24px;padding:16px 0 0;border-top:1px solid var(--line);color:#52725c}.safety b{font-weight:500;font-size:12px}.safety p{font-size:11px;line-height:1.7;color:#737378;margin-top:5px}.detail-actions{position:sticky;bottom:0;padding:12px 22px;display:flex;gap:15px;background:#fffffff2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-top:1px solid var(--line)}.detail-actions .primary{flex:1}.detail-save{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-width:45px;font-size:10px;color:#737378}.sheet-options{padding:8px 22px 24px}.sheet-options button{display:flex;align-items:center;justify-content:space-between;padding:18px 0;width:100%;border-bottom:1px solid var(--line);font-size:14px}.sheet-options svg{color:var(--blue)}.publish-form{display:flex;flex-direction:column;gap:20px;padding:24px}label{display:flex;flex-direction:column;gap:9px;font-size:12px;font-weight:500}label input,label select,textarea{width:100%;min-width:0;min-height:44px;border:1px solid #e1e1e6;background:#fafafa;color:#333;border-radius:6px;padding:11px;font-size:16px}textarea{resize:vertical}.publish-notice{display:flex;align-items:center;gap:12px;padding:16px 12px;border-radius:6px;background:var(--surface);font-size:11px;color:#717176}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.demo-notice{font-size:11px;line-height:1.7;color:#77777d}.subpage{padding:0 24px}.page-title{display:flex;align-items:center;justify-content:space-between;padding:30px 0}.page-title h1{font-size:28px;font-weight:650}.profile{display:flex;align-items:center;gap:15px;padding:6px 0}.large-avatar{display:grid;place-items:center;width:60px;height:60px;border-radius:50%;background:#edf1f5;color:var(--blue);font-size:23px}.auth-form{display:flex;flex-direction:column;gap:16px;padding:8px 0 28px}.auth-tabs{margin:0 0 4px}.text-button{margin-left:auto;min-height:44px;padding:0 4px;color:var(--blue);font-size:13px}.profile h2{font-size:19px;font-weight:600}.profile p{color:#77777d;font-size:11px;margin-top:7px}.stats{display:grid;grid-template-columns:repeat(3,1fr);padding:29px 0;margin-bottom:10px;border-bottom:1px solid var(--line)}.stats>div{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:11px;color:#77777d}.stats b{font-size:25px;font-weight:600;color:#1d1d1f}.eco-note,.message-note{display:flex;gap:12px;padding:18px 0;color:#54715d}.message-note{color:var(--blue)}.eco-note b,.message-note b{font-size:13px;font-weight:500}.eco-note p,.message-note p{margin-top:6px;font-size:11px;line-height:1.7;color:#77777d}.profile-tabs{display:flex;gap:24px;padding-top:20px;margin-bottom:20px;border-bottom:1px solid var(--line)}.profile-tabs button{padding:0 0 13px;color:#77777d;font-size:13px;min-height:40px}.profile-tabs button.active{color:var(--blue);border-bottom:2px solid var(--blue)}.reservation{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:18px 0;border-bottom:1px solid var(--line)}.reservation img{width:65px;height:70px;border-radius:6px}.reservation>div{flex:1;min-width:0}.reservation b{font-size:12px;font-weight:500;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.reservation p{font-size:10px;color:#77777d;margin-top:6px}main:has(.campus-page){padding-bottom:0}.campus-page{height:calc(100dvh - 76px - env(safe-area-inset-bottom));display:flex;flex-direction:column;padding:0 20px 4px}.campus-page .page-title{flex:0 0 auto;padding:22px 0 14px}.folder-stack{position:relative;isolation:isolate;flex:1;min-height:0;margin:20px 0 0}.campus-folder{position:absolute;top:calc(var(--folder-index) * 14%);left:0;width:100%;height:30%;text-align:left;transform-origin:center 40%;filter:drop-shadow(0 -3px 4px #253a4824);-webkit-tap-highlight-color:transparent}.folder-surface{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;background:#e6eaed;border-radius:0 0 8px 8px;--folder-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 720 48' preserveAspectRatio='none'%3E%3Cpath d='M0 46C0 37 4 34 18 34H25C37 34 39 32 44 23L50 12C54 4 59 0 72 0H324C337 0 342 4 346 12L352 23C357 32 360 34 372 34H702C716 34 720 37 720 46V48H0Z'/%3E%3C/svg%3E");-webkit-mask-image:var(--folder-mask),linear-gradient(black,black);mask-image:var(--folder-mask),linear-gradient(#000,#000);-webkit-mask-size:100% 48px,100% calc(100% - 46px);mask-size:100% 48px,100% calc(100% - 46px);-webkit-mask-position:top,bottom;mask-position:top,bottom;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}.folder-surface img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;border-radius:0}.folder-label-surface{position:absolute;top:0;left:0;right:0;height:34px;background:#e4ebef}.folder-tab{position:absolute;top:0;left:10%;width:37%;height:36px;display:flex;align-items:center;justify-content:space-between;gap:3px;color:#253d49;font-size:13px;font-weight:600;white-space:nowrap}.folder-tab svg{flex-shrink:0}.campus-folder:focus-visible{outline:none}.campus-folder:focus-visible .folder-tab{outline:2px solid var(--blue);outline-offset:2px;border-radius:3px}.campus-folder[aria-disabled=true]{cursor:progress}.campus-folder.is-opening{filter:drop-shadow(0 12px 14px #253a4845)}@media(max-width:359px){.campus-page{padding-left:14px;padding-right:14px}.folder-tab{font-size:12px}}@media(min-width:600px){.campus-page{height:calc(100dvh - 100px - env(safe-area-inset-bottom))}}@media(max-height:500px){.campus-page .page-title{padding:8px 0}.folder-stack{margin-top:8px}}.placeholder{min-height:150px;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#f0f0f2;color:#909096;font-size:11px}.item-facts{margin:22px 0 14px;border-top:1px solid var(--line)}.item-facts>div{display:grid;grid-template-columns:74px minmax(0,1fr);padding:11px 0;border-bottom:1px solid var(--line);font-size:12px;line-height:1.6}.item-facts dt{color:var(--muted)}.item-facts dd{margin:0;overflow-wrap:anywhere}.photo-field img{width:120px;height:120px;object-fit:cover;border-radius:6px}.photo-field>span{color:var(--muted);font-size:10px;font-weight:400;line-height:1.7}.photo-field input{font-size:11px;width:100%}.consent{display:flex;flex-direction:row;align-items:flex-start;gap:9px;font-size:11px;line-height:1.8;font-weight:400;color:#62626a}.consent input{width:16px;height:16px;min-height:0;flex-shrink:0;padding:0;margin:2px 0 0;accent-color:var(--blue)}.form-error{font-size:12px;color:#b04444}.meeting-campus,.meeting-facts p,.reuse-status{display:flex;align-items:center;gap:6px;font-size:12px}.meeting-campus{color:var(--blue)}.trade-record{padding:20px 0;border-bottom:1px solid var(--line)}.trade-status{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px}.trade-status b{font-weight:550;color:var(--blue)}.trade-status>span{font-size:11px;color:var(--muted)}.trade-record .reservation{border:0}.meeting-facts{display:flex;flex-direction:column;gap:8px;padding:0 0 15px;color:#62626a;overflow-wrap:anywhere}.meeting-facts p{align-items:flex-start;line-height:1.7}.trade-actions{display:flex;gap:15px;margin-top:12px}.trade-record .consent{margin:12px 0}.text-action{min-height:44px;padding:10px 12px 10px 0;color:var(--muted);font-size:12px}.trade-cancel-row{display:flex;justify-content:flex-end;margin-top:18px}.cancel-request{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:1px solid #c36a62;border-radius:6px;background:#fff7f5;color:#963e35;font-size:13px;font-weight:600}.cancel-request:active:not(:disabled){background:#fbe8e4}@media(hover:hover){.cancel-request:hover:not(:disabled){background:#fbe8e4;border-color:#963e35}}.reuse-status{color:#52725c;margin:12px 0}.evidence{padding-top:10px;font-size:12px}.evidence summary{color:var(--blue);cursor:pointer;min-height:40px}.evidence form{display:flex;flex-direction:column;gap:16px;padding:12px 0}@media(min-width:600px){.app-shell{margin:24px auto;min-height:calc(100dvh - 48px);border-radius:8px;overflow:hidden;box-shadow:0 12px 60px #00000008}.market-header{padding-top:14px}.modal{bottom:50%;transform:translate(-50%,50%);border-radius:8px;max-height:90dvh}.product-image{aspect-ratio:1}}@media(max-width:360px){.brand-row{padding-top:8px;padding-bottom:14px}.category-row{padding-top:16px;padding-bottom:12px}.feed-tabs{padding-bottom:14px}.market-header,.feed,.subpage{padding-left:20px;padding-right:20px}.category-row{padding-left:15px;padding-right:15px;gap:3px}.product-grid{gap:26px 12px}.brand{font-size:28px}.feed-tabs [role=tablist]{width:171px}.free-toggle{font-size:10px;gap:3px}.product h3{font-size:12px;height:39px}.location{font-size:9px}.section-heading h2{font-size:20px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
