:root{
  --paper:#f6f2e9;
  --paper-deep:#eee6d9;
  --surface:rgba(255,255,252,.88);
  --ink:#283638;
  --muted:#788485;
  --line:rgba(72,104,101,.16);
  --river:#4d9491;
  --river-deep:#2f716f;
  --river-soft:#dcecea;
  --wine:#a45752;
  --gold:#b8955d;
  --shadow:0 18px 52px rgba(46,65,64,.08);
  --radius:18px;
}

*{box-sizing:border-box}
html{background:var(--paper)}
body{margin:0;min-width:290px;min-height:100vh;color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC",sans-serif;-webkit-font-smoothing:antialiased;background:
  radial-gradient(circle at 8% 0%,rgba(210,232,227,.85),transparent 29%),
  radial-gradient(circle at 93% 22%,rgba(238,215,201,.58),transparent 27%),
  linear-gradient(165deg,#f9f6ef 0%,var(--paper) 55%,#f3eee5 100%);background-attachment:fixed}
button,input,textarea{font:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent}
button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid rgba(77,148,145,.58);outline-offset:2px}
[hidden]{display:none!important}
.river-glow{position:fixed;pointer-events:none;inset:0;opacity:.42;background:
  linear-gradient(118deg,transparent 12%,rgba(255,255,255,.5) 12.3%,transparent 13%),
  radial-gradient(ellipse at 48% 112%,rgba(93,159,154,.22),transparent 44%);mix-blend-mode:soft-light}

.gate{min-height:100vh;min-height:100svh;display:grid;place-items:center;padding:24px}
.gate-card{position:relative;overflow:hidden;width:min(390px,100%);padding:44px 30px 32px;text-align:center;background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(250,248,242,.8));border:1px solid rgba(80,118,113,.2);border-radius:38px 38px 56px 56px;box-shadow:0 32px 90px rgba(45,69,67,.13),inset 0 1px rgba(255,255,255,.9)}
.gate-card::before{content:"";position:absolute;inset:-50% -25% 58%;z-index:0;background:conic-gradient(from 205deg,transparent,rgba(185,223,219,.35),rgba(235,201,191,.26),rgba(232,216,176,.25),transparent);filter:blur(22px);transform:rotate(-8deg)}
.gate-card>*{position:relative;z-index:1}
.mark{width:78px;height:78px;color:var(--river-deep);stroke:currentColor;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round;margin-bottom:4px}
.gate-card h1,.topbar h1{font-family:"Songti SC","Noto Serif SC",serif;font-weight:600;letter-spacing:.18em}
.gate-card h1{font-size:42px;line-height:1;margin:8px 0 0}
.eyebrow{margin:5px 0;color:var(--river-deep);font-size:9px;letter-spacing:.2em}
.gate-copy{margin:10px 0 28px;color:var(--muted);font-family:"Songti SC","Noto Serif SC",serif}
.gate-card form{text-align:left}
.gate-card label{display:block;margin:0 0 7px 3px;color:#657475;font-size:12px}
.gate-card input{width:100%;padding:13px 14px;color:var(--ink);background:rgba(249,248,244,.78);border:1px solid var(--line);border-radius:13px}
.gate-card button,.primary{border:0;color:#fff;background:linear-gradient(135deg,var(--river),#61aaa4);font-weight:650;box-shadow:0 8px 20px rgba(60,132,128,.2)}
.gate-card button{width:100%;margin-top:12px;padding:12px;border-radius:13px;letter-spacing:.07em}
.gate-card .gate-secondary{color:var(--river-deep);background:rgba(255,255,255,.38);border:1px solid rgba(77,148,145,.24);box-shadow:none;font-size:11px;font-weight:500}
.gate-note{min-height:34px;margin:22px 2px 0;color:#8b9594;font-size:10px;line-height:1.65}
.gate-note.error{color:#a64d49}

.app{min-height:100vh}
.top{position:sticky;top:0;z-index:20;background:rgba(246,242,233,.82);-webkit-backdrop-filter:blur(20px) saturate(1.2);backdrop-filter:blur(20px) saturate(1.2);border-bottom:1px solid var(--line);box-shadow:0 8px 26px rgba(43,65,63,.035)}
.topbar{max-width:760px;margin:0 auto;padding:13px 16px 8px;display:flex;align-items:center;gap:8px}
.mark.small{width:39px;height:39px;margin:0}
.topbar h1{margin:0;font-size:22px;line-height:1.1}
.topbar>div>p{margin:3px 0 0;color:var(--river-deep);font-size:8px;letter-spacing:.18em}
.notification-button{position:relative;flex:none;width:38px;height:38px;margin-left:auto;padding:7px;border:1px solid transparent;border-radius:50%;color:var(--river-deep);background:rgba(255,255,255,.34)}
.notification-button svg{width:100%;height:100%;display:block;stroke:currentColor;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round}
.notification-badge{position:absolute;top:-2px;right:-3px;min-width:17px;height:17px;padding:0 4px;display:grid;place-items:center;color:#fff;background:var(--wine);border:2px solid var(--paper);border-radius:999px;font-size:8px;font-weight:700;line-height:1}
.identity{margin-left:0;padding:5px 8px;text-align:right;line-height:1.35;border:1px solid transparent;border-radius:11px;background:transparent}
.identity span{display:block;color:var(--muted);font-size:9px}
.identity strong{font-size:12px;color:#405456}
.identity small{display:block;margin-top:1px;color:var(--river-deep);font-size:8px}
.tabs{max-width:760px;margin:0 auto;padding:2px 14px 10px;display:flex;gap:9px}
.tab{flex:1;max-width:170px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;color:#5e6d6e;background:rgba(255,255,255,.52);display:flex;align-items:center;justify-content:center;gap:7px;font-size:12px}
.tab-dot{width:6px;height:6px;border-radius:50%;background:#8ca09e}
.tab.active{color:#fff;background:linear-gradient(135deg,#30484a,#283e40);border-color:#30484a;box-shadow:0 6px 16px rgba(39,61,62,.15)}
.tab.active .tab-dot{background:#b9e3dd;box-shadow:0 0 0 3px rgba(185,227,221,.12)}
main{max-width:760px;margin:0 auto}
.view{display:none}
.view.active{display:block}

.chat-view{min-height:calc(100vh - 112px);padding-bottom:122px}
.chat-list{padding:18px 13px 10px;display:flex;flex-direction:column;gap:11px}
.load-earlier{align-self:center;margin:1px 0 6px;padding:6px 13px;color:var(--river-deep);background:rgba(255,255,255,.56);border:1px dashed rgba(77,148,145,.3);border-radius:999px;font-size:10px}
.chat-message{display:flex;gap:9px;align-items:flex-start;max-width:88%}
.chat-message.mine{align-self:flex-end;flex-direction:row-reverse}
.avatar{flex:none;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;color:var(--river-deep);background:linear-gradient(145deg,#fff,var(--river-soft));border:1px solid rgba(77,148,145,.22);font-family:"Songti SC",serif;font-size:13px;box-shadow:0 6px 15px rgba(51,89,87,.07)}
.mine .avatar{color:#8b4a47;background:linear-gradient(145deg,#fff,#f2dfd8);border-color:rgba(164,87,82,.2)}
.bubble-wrap{min-width:0}
.bubble-meta{display:flex;gap:7px;align-items:baseline;margin:0 4px 4px;color:var(--muted);font-size:9px}
.mine .bubble-meta{justify-content:flex-end}
.bubble-meta strong{color:#526364;font-size:11px}
.bubble{padding:10px 13px;white-space:pre-wrap;word-break:break-word;background:rgba(255,255,252,.88);border:1px solid var(--line);border-radius:5px 16px 16px 16px;box-shadow:0 8px 24px rgba(45,66,65,.045)}
.mine .bubble{color:#fff;background:linear-gradient(135deg,var(--river),#559e99);border-color:transparent;border-radius:16px 5px 16px 16px;box-shadow:0 8px 22px rgba(63,132,127,.14)}
.empty{padding:70px 20px;text-align:center;color:var(--muted);font-family:"Songti SC","Noto Serif SC",serif}
.chat-composer{position:fixed;z-index:15;left:0;right:0;bottom:0;padding:8px 12px calc(9px + env(safe-area-inset-bottom));background:rgba(249,247,241,.9);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--line);box-shadow:0 -12px 38px rgba(48,68,67,.055)}
.composer-inner,.mention-row{max-width:736px;margin:0 auto}
.mention-row{display:flex;gap:6px;overflow-x:auto;padding:0 1px 7px;scrollbar-width:none}
.mention-row::-webkit-scrollbar{display:none}
.mention-chip{flex:none;padding:3px 9px;border:1px solid rgba(77,148,145,.2);border-radius:999px;color:var(--river-deep);background:rgba(255,255,255,.55);font-size:10px}
.composer-inner{display:flex;gap:8px;align-items:flex-end}
.composer-inner textarea{flex:1;min-height:43px;max-height:126px;padding:10px 12px;resize:none;color:var(--ink);background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:13px;line-height:1.5}
.primary{padding:10px 17px;border-radius:12px}
.primary.compact{height:43px;flex:none}
.primary:disabled{opacity:.45}

.moments-view{padding:16px 12px 72px}
.moment-compose-wrap{margin-bottom:14px}
.compose-toggle{width:100%;padding:13px 16px;display:flex;justify-content:space-between;color:var(--river-deep);background:rgba(255,255,252,.68);border:1px dashed rgba(77,148,145,.34);border-radius:var(--radius);font-family:"Songti SC","Noto Serif SC",serif}
.compose-toggle span{font-size:19px;line-height:1}
.moment-compose{padding:15px;margin-top:9px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.moment-compose textarea{width:100%;padding:11px 12px;resize:vertical;color:var(--ink);background:rgba(250,249,245,.72);border:1px solid var(--line);border-radius:12px}
.image-pick{margin-top:10px;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:10px}
.image-pick label{flex:none;padding:5px 10px;border:1px solid var(--line);border-radius:999px;color:var(--river-deep);background:#fff;cursor:pointer}
.image-pick input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.image-pick span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}
.ghost{padding:9px 15px;color:#6b797a;background:transparent;border:1px solid var(--line);border-radius:12px}
.moment-list{display:flex;flex-direction:column;gap:13px}
.moment-card{position:relative;overflow:hidden;padding:17px;background:linear-gradient(140deg,rgba(255,255,253,.93),rgba(251,249,244,.78));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 13px 36px rgba(45,67,65,.055)}
.moment-card::after{content:"";position:absolute;pointer-events:none;inset:0;background:linear-gradient(118deg,transparent 63%,rgba(194,226,222,.15),rgba(234,207,196,.13))}
.moment-card>*{position:relative;z-index:1}
.moment-head{display:flex;gap:10px;align-items:center}
.moment-head .avatar{width:38px;height:38px}
.moment-who{line-height:1.35}
.moment-who strong{display:block;font-size:13px}
.moment-who span{color:var(--muted);font-size:9px}
.moment-id{margin-left:auto;color:#9aa3a2;font-size:9px}
.moment-content{margin:13px 1px 11px;white-space:pre-wrap;word-break:break-word;line-height:1.78}
.moment-image{width:100%;max-height:540px;display:block;object-fit:cover;border-radius:13px;background:var(--river-soft);border:1px solid rgba(77,148,145,.13)}
.image-state{padding:36px 14px;text-align:center;color:var(--muted);background:linear-gradient(135deg,rgba(220,236,234,.65),rgba(241,229,220,.55));border-radius:13px;font-family:"Songti SC",serif;font-size:12px}
.moment-actions{display:flex;gap:16px;margin-top:12px;padding-top:10px;border-top:1px solid rgba(75,105,102,.1)}
.action{border:0;background:transparent;color:#7c8888;padding:0;font-size:11px}
.action.liked{color:var(--wine)}
.comments{margin-top:12px;padding:11px 12px;background:rgba(236,239,233,.62);border-radius:12px}
.comment{padding:5px 0;white-space:pre-wrap;word-break:break-word;font-size:12px}
.comment+.comment{border-top:1px solid rgba(75,105,102,.09)}
.comment strong{color:var(--river-deep);margin-right:5px}
.comment time{margin-left:6px;color:#9aa2a1;font-size:8px}
.comment-compose{display:flex;gap:7px;margin-top:9px}
.comment-compose input{flex:1;min-width:0;padding:8px 10px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;font-size:12px}
.comment-compose button{flex:none;padding:7px 11px;border:0;border-radius:10px;color:#fff;background:var(--river);font-size:11px}
footer{padding:28px 16px 34px;text-align:center;color:#909998;font-size:9px;line-height:1.7;letter-spacing:.04em}
footer p{margin:0}
.modal-backdrop{position:fixed;z-index:80;inset:0;padding:20px;display:grid;place-items:center;background:rgba(31,47,48,.32);-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}
.modal-card{position:relative;width:min(370px,100%);padding:28px 24px 23px;text-align:center;background:linear-gradient(145deg,#fffdf8,#f5f1e8);border:1px solid rgba(77,148,145,.22);border-radius:27px;box-shadow:0 28px 90px rgba(30,48,48,.22)}
.modal-card h2{margin:3px 0 8px;font:600 24px/1.3 "Songti SC","Noto Serif SC",serif;letter-spacing:.08em}
.modal-card>p:not(.eyebrow){margin:0 0 18px;color:var(--muted);font-size:11px;line-height:1.75}
.modal-close{position:absolute;right:13px;top:10px;width:34px;height:34px;border:0;color:#778584;background:transparent;font-size:25px;line-height:1}
.modal-primary{width:100%;border:0}
.link-code-panel{margin-top:13px;padding:14px;background:rgba(220,236,234,.62);border:1px dashed rgba(77,148,145,.32);border-radius:15px}
.link-code-panel strong{display:block;color:var(--river-deep);font:650 24px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em}
.link-code-panel .ghost{margin-top:10px;padding:6px 11px;font-size:10px}
.modal-switch{margin-top:15px;padding:7px 10px;border:0;color:#7b8787;background:transparent;text-decoration:underline;text-underline-offset:3px;font-size:10px}
.notification-card{width:min(430px,100%);padding-left:17px;padding-right:17px;text-align:left}
.notification-card>.eyebrow,.notification-card>h2{text-align:center}
.notification-list{max-height:min(62vh,520px);margin-top:15px;overflow-y:auto;display:flex;flex-direction:column;gap:7px;overscroll-behavior:contain}
.notification-item{position:relative;width:100%;padding:11px 12px 10px 22px;text-align:left;color:var(--ink);background:rgba(255,255,255,.45);border:1px solid var(--line);border-radius:13px}
.notification-item.unread{background:rgba(220,236,234,.66);border-color:rgba(77,148,145,.27)}
.notification-item.unread::before{content:"";position:absolute;left:10px;top:17px;width:6px;height:6px;border-radius:50%;background:var(--river)}
.notification-item strong{display:block;font-size:11px;font-weight:550;line-height:1.6}
.notification-item time{display:block;margin-top:2px;color:#929d9c;font-size:8px}
.notification-empty{padding:36px 12px;text-align:center;color:var(--muted);font:12px/1.8 "Songti SC","Noto Serif SC",serif}
.toast{position:fixed;z-index:99;left:50%;bottom:112px;transform:translateX(-50%);max-width:calc(100vw - 34px);padding:8px 16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff;background:#263b3d;border-radius:999px;box-shadow:0 9px 25px rgba(35,56,57,.2);font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s}
.toast.show{opacity:.96}

@media (min-width:700px){.chat-list{padding-left:24px;padding-right:24px}.moments-view{padding-left:20px;padding-right:20px}.chat-message{max-width:72%}}
@media (hover:hover){.tab:hover,.mention-chip:hover,.ghost:hover,.identity:hover,.notification-button:hover{border-color:rgba(77,148,145,.45)}.moment-card:hover{box-shadow:0 16px 42px rgba(45,67,65,.075)}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}