:root{--blue:#2e8ad8;--blue2:#50abe8;--deep:#1c3045;--muted:#7d8fa1;--line:#e6edf4;--white:#fff;--bg:#e8f0f9;--radius:17px;--shadow:0 12px 30px rgba(48,100,156,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#233b52;background:#e9eff5;font:14px/1.55 -apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei UI','Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{border:0;cursor:pointer}button:focus-visible,input:focus-visible{outline:2px solid #1680e5;outline-offset:3px}svg.icon{width:20px;height:20px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}.app-shell{max-width:1710px;min-height:100vh;margin:0 auto;display:grid;grid-template-columns:76px 316px minmax(0,1fr) 268px;background:#fff;box-shadow:0 10px 44px #47708a16}
.avatar-rail{background:linear-gradient(180deg,#eff4f9,#e5ecf5);display:flex;flex-direction:column;align-items:center;gap:15px;padding:20px 0;border-right:1px solid #dee7f2}.brand-disc,.rail-disc{display:grid;place-items:center;flex-shrink:0;width:46px;height:46px;border-radius:50%;font-size:18px;font-weight:800;background:white;color:#6387a0;box-shadow:0 5px 12px #4669890c;transition:transform .2s,border-radius .2s}.brand-disc{background:linear-gradient(140deg,#3fb3f2,#1479bc);color:#fff;box-shadow:0 9px 18px #2b93d23b;border:3px solid #e4f4ff}.rail-disc:hover,.brand-disc:hover{transform:translateY(-2px);border-radius:16px}.rail-disc.active{box-shadow:0 0 0 3px #3aa0ed40}.rail-break{height:1px;width:37px;background:#cad8e5}.rail-disc.coffee{background:#e6f2fd;color:#358ccb}.rail-disc.food{background:#fff2e6;color:#bf7d51}.rail-disc.space{background:#e5f6f1;color:#438a84}.rail-disc.weekend{background:#f1ecff;color:#8a6cc3}.rail-stamp{margin-top:auto;text-align:center;color:#aec1d3;font-weight:800;letter-spacing:.15em;font-size:8px;line-height:1.7}
.channel-sidebar{background:#fff;min-width:0;border-right:1px solid var(--line);display:flex;flex-direction:column;height:100vh;position:sticky;top:0}.sidebar-top{padding:25px 21px 20px;border-bottom:1px solid var(--line)}.sidebar-brand{display:flex;align-items:center;gap:12px}.sidebar-brand b{display:block;font-size:20px;font-weight:800;letter-spacing:.04em}.sidebar-brand small{display:block;color:#9aabb9;letter-spacing:.13em;font-size:9px;font-weight:700;margin-top:1px}.brand-symbol{display:grid;place-items:center;width:43px;height:43px;border-radius:14px;background:#e1f3ff;color:#1787cf;font-size:21px;font-weight:900}.drawer-x{display:none}.sidebar-scroll{padding:22px 12px 18px;overflow-y:auto;flex:1;scrollbar-width:thin}.section-label{padding:0 13px 12px;color:#8799a8;font-size:11px;font-weight:750;display:flex;justify-content:space-between;letter-spacing:.02em}.section-label span{letter-spacing:.12em;font-size:9px;color:#b8c6d3}.channel-entry{width:100%;display:flex;align-items:center;gap:12px;text-align:left;border-radius:14px;background:transparent;padding:11px 12px;color:#314c62;min-width:0;transition:background .15s}.channel-entry:hover{background:#f1f7fc}.channel-entry.selected{background:#e5f4ff}.channel-avatar,.tiny-avatar{display:grid;place-items:center;flex:none;border-radius:50%;width:46px;height:46px;font-size:16px;font-weight:850;color:#fff;background:linear-gradient(145deg,#5dbff7,#2186c8)}.channel-avatar.all{background:linear-gradient(135deg,#42b4f3,#217ac7)}.channel-avatar.coffee,.tiny-avatar.coffee{background:linear-gradient(140deg,#7fb8e8,#387bb9)}.channel-avatar.food,.tiny-avatar.food{background:linear-gradient(140deg,#edba90,#bd815f)}.channel-avatar.space,.tiny-avatar.space{background:linear-gradient(140deg,#98cabc,#3c9a99)}.channel-avatar.weekend,.tiny-avatar.weekend{background:linear-gradient(140deg,#a9abec,#7e7bc8)}.channel-avatar.saves{background:linear-gradient(140deg,#93b8d1,#567f9b)}.entry-copy{min-width:0;flex:1}.entry-copy strong{display:block;font-size:14px;font-weight:750;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.entry-copy small{display:block;font-size:11px;color:#93a2b1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px}.channel-entry .arrow{width:15px;color:#58a0d4}.channel-entry.selected .entry-copy strong{color:#137cba}.mini-counter{font-size:11px;color:#fff;background:#379bdd;border-radius:7px;padding:2px 6px;font-weight:750}.sidebar-divider{height:1px;background:var(--line);margin:18px 13px 21px}.sidebar-note{margin:26px 9px 0;padding:20px;border-radius:17px;background:linear-gradient(145deg,#f1f9ff,#e9f3fd);color:#355c7a}.sidebar-note .note-spark{color:#2b9de0;font-size:20px}.sidebar-note b{display:block;margin:5px 0;font-size:14px}.sidebar-note p{font-size:11px;color:#7c97ad;line-height:1.8}.sidebar-foot{padding:15px 21px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px}.foot-avatar{width:33px;height:33px;border-radius:50%;display:grid;place-items:center;background:#e7f4ff;color:#2d97d9;font-weight:800}.sidebar-foot b{display:block;font-size:12px}.sidebar-foot small{display:block;color:#91a4b4;font-size:10px}.foot-dots{margin-left:auto;color:#9bacbc}.drawer-shade{display:none}
.main-column{min-width:0;background:var(--bg);display:flex;flex-direction:column}.chat-header{height:76px;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:0 30px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:22}.chat-head-left,.head-actions{display:flex;align-items:center;gap:12px;min-width:0}.head-actions{gap:5px}.channel-badge{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:16px;font-weight:850;background:linear-gradient(145deg,#5abcf2,#318ad0)}.chat-title{min-width:0}.chat-title strong{font-size:16px;display:block;font-weight:820;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-title small{font-size:11px;color:#87a1b4;display:block;margin-top:2px}.icon-button{display:grid;place-items:center;color:#6e8da4;background:transparent;width:42px;height:42px;border-radius:12px;position:relative}.icon-button:hover{background:#edf5fc;color:#2286c6}.saved-top span{position:absolute;right:0;top:0;background:#3c9de0;color:white;font-size:9px;border-radius:9px;line-height:14px;min-width:14px;padding:0 2px}.mobile-menu{display:none}.chat-canvas{flex:1;min-width:0;background:radial-gradient(circle at 99% 0,#cde3f5a8,transparent 38%),radial-gradient(circle at 0 60%,#ddedf9b0,transparent 34%),linear-gradient(155deg,#eaf3fb,#e4eef8)}.message-area{width:min(100%,862px);margin:0 auto;padding:28px 34px 30px}.day-pill{border-radius:24px;padding:6px 17px;background:#9eb8cb7a;backdrop-filter:blur(6px);color:#fff;font-size:11px;font-weight:800;letter-spacing:.03em;display:table;margin:0 auto 24px}.welcome-note{position:relative;overflow:hidden;background:linear-gradient(112deg,#2787c8,#58c0ee);border-radius:20px;padding:39px 40px 38px;color:#fff;box-shadow:0 15px 35px #217bc13d;isolation:isolate}.welcome-note:before{content:"";position:absolute;right:-52px;bottom:-135px;width:385px;height:385px;border:1px solid #ffffff38;border-radius:50%;pointer-events:none}.welcome-note:after{content:"";position:absolute;right:36px;top:-70px;width:215px;height:215px;background:radial-gradient(circle,#f2fbff50,transparent 70%);pointer-events:none}.welcome-kicker{font-size:12px;font-weight:800;letter-spacing:.13em;position:relative;z-index:1}.blue-dot{display:inline-block;background:#b4f8ff;width:7px;height:7px;border-radius:50%;vertical-align:middle;margin-right:5px}.welcome-note h1{font-size:clamp(26px,3vw,38px);line-height:1.34;letter-spacing:-.04em;font-weight:870;margin:14px 0 12px;position:relative;z-index:1}.welcome-note h1 em{font-style:normal;color:#d9f7ff}.welcome-note p{font-size:13px;color:#d5efff;max-width:330px;line-height:1.8;position:relative;z-index:1}.welcome-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:24px;position:relative;z-index:1}.welcome-actions span{font-size:11px;color:#d8f2ff;letter-spacing:.025em}.primary-button{display:flex;align-items:center;gap:11px;padding:11px 15px 11px 18px;background:#fff;color:#2681bd;border-radius:9px;font-weight:800;font-size:13px;box-shadow:0 10px 23px #0669a02c}.primary-button .icon{width:16px;height:16px}.welcome-bubbles{position:absolute;right:12%;top:24%;width:180px;height:180px;pointer-events:none}.welcome-bubbles i{position:absolute;border-radius:22px;background:#ffffff26;transform:rotate(-15deg);box-shadow:0 4px 12px #175d7c1a}.welcome-bubbles i:nth-child(1){width:142px;height:100px;top:0;right:10px}.welcome-bubbles i:nth-child(2){width:125px;height:83px;top:72px;right:-35px;background:#ffffff42}.welcome-bubbles i:nth-child(3){width:38px;height:38px;top:112px;right:112px;background:#ffffff38;border-radius:50%}
.topic-row{padding:27px 0 19px}.topic-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.topic-head b{font-size:16px}.topic-head span{color:#839db3;font-size:11px}.topic-pills{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:14px 0 4px}.topic-pills::-webkit-scrollbar{display:none}.topic-pill{border-radius:10px;border:1px solid #d4e5f2;background:#ffffffab;color:#628097;padding:8px 14px;flex:none;font-size:12px;font-weight:700}.topic-pill:hover{border-color:#8abde0}.topic-pill.active{color:#fff;background:#3195d9;border-color:#3195d9;box-shadow:0 6px 13px #379dd02c}.search-row{height:47px;border-radius:12px;display:flex;align-items:center;gap:11px;background:#fff;padding:0 15px;color:#8ba2b6;box-shadow:0 3px 14px #6587aa0c;border:1px solid #dbe9f4}.search-row:focus-within{border-color:#76b7e6;box-shadow:0 0 0 3px #60a9e420}.search-row .icon{width:19px}.search-row input{flex:1;min-width:0;outline:0;border:0;color:#284763;background:transparent;font-size:13px}.search-row input::placeholder{color:#9db0c1}.search-row button{display:grid;place-items:center;background:#f2f6f9;color:#7f9caf;width:26px;height:26px;border-radius:7px}.search-row button .icon{width:15px}.stream-divider{display:flex;align-items:center;justify-content:space-between;margin:24px 0 17px;gap:9px;color:#4f7897}.stream-divider>span{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.04em;font-weight:800;min-width:0}.divider-line{display:block;height:1px;width:20px;background:#b1d2e9}.stream-divider small{font-size:11px;color:#84a3bc}.posts{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}.post{display:flex;gap:11px;align-items:flex-end;min-width:0}.post-avatar{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;flex:none;background:#469acb;color:#fff;font-weight:800;font-size:14px;box-shadow:0 7px 14px #5389ac21;margin-bottom:1px}.post-avatar.food{background:#c79372}.post-avatar.space{background:#72a99c}.post-avatar.weekend{background:#8b91d1}.post-card{width:min(100%,690px);min-width:0;border-radius:15px 15px 15px 5px;background:#fff;box-shadow:0 4px 17px #6596b121;overflow:hidden;border:1px solid #e3edf5}.post-body{padding:18px 20px 0}.post-source{display:flex;align-items:center;gap:7px;color:#3393cd;font-size:12px}.post-source strong{font-weight:850}.post-source span{color:#a0b1bf;font-weight:500;font-size:10px}.post-title{font-size:19px;line-height:1.45;margin:9px 0 8px;color:#25455f;font-weight:850;letter-spacing:-.025em}.post-desc{color:#728a9d;font-size:12px;line-height:1.85;margin-bottom:13px}.post-image{display:block;width:100%;height:225px;object-fit:cover;border-radius:9px;margin:0 0 11px;background:#d6e5f1}.post-tags{display:flex;gap:7px;flex-wrap:wrap;padding-bottom:13px}.post-tags span{color:#4b97c7;font-size:11px;background:#edf7fe;padding:3px 8px;border-radius:5px}.post-actions{display:flex;align-items:center;gap:11px;border-top:1px solid #eef3f7;padding:10px 18px 11px}.post-actions .view{background:#eef7fe;color:#318dc9;border-radius:7px;font-size:12px;font-weight:850;padding:8px 12px}.post-actions .save{background:transparent;color:#6e93ae;display:flex;align-items:center;gap:5px;padding:8px 4px;font-size:11px;font-weight:700;margin-left:auto}.post-actions .save .icon{width:17px;height:17px}.post-actions .save.is-saved{color:#238ac8}.post-actions .copy{background:transparent;color:#92a4b2;padding:7px;display:grid;place-items:center}.post-actions .copy .icon{width:17px;height:17px}.empty-state{background:#fff;border-radius:14px;text-align:center;padding:45px 15px;box-shadow:var(--shadow)}.empty-state span{font-size:48px;color:#8bbbd9}.empty-state h2{font-size:17px;margin:5px 0}.empty-state p{color:#8ba4b6;font-size:12px;margin-bottom:17px}.empty-state button{background:#3195d9;color:#fff;border-radius:8px;padding:10px 18px}.content-footer{text-align:center;margin:33px 8px 0;color:#91a7b7;font-size:10px;line-height:1.85}.content-footer b{font-size:12px;color:#7194ac}.content-footer p{margin-top:4px}
.info-pane{background:#f8fbfe;border-left:1px solid var(--line);padding:28px 19px}.info-cover{background:#fff;overflow:hidden;border:1px solid #e3edf6;border-radius:17px;padding:20px 17px 13px}.overline{font-size:9px;color:#4ba6d8;font-weight:900;letter-spacing:.2em}.info-cover h2{font-size:20px;line-height:1.45;margin:12px 0 17px}.info-cover h2 em{font-style:normal;color:#2e9cdb}.info-cover img{border-radius:11px;width:100%;aspect-ratio:1.6;object-fit:cover}.info-group{margin-top:26px}.info-group>b{display:flex;justify-content:space-between;font-size:13px;padding:0 4px 12px}.info-group>b span{color:#b0c1cf;font-size:9px;letter-spacing:.13em}.info-group button{width:100%;display:flex;align-items:center;text-align:left;gap:8px;background:transparent;border-radius:10px;color:#4c6e84;padding:10px 5px;font-weight:700;font-size:11px}.info-group button:hover{background:#e9f4fd}.info-group button>.icon{width:14px;height:14px;margin-left:auto;color:#a5b9c7}.tiny-avatar{width:31px;height:31px;font-size:12px}.info-caption{margin-top:17px;padding:15px;border:1px solid #e3edf6;background:#fff;border-radius:12px;color:#99abba;font-size:11px;line-height:1.8}.bottom-tabs{display:none}.dialog-shade{position:fixed;z-index:100;inset:0;background:#0e263d9e;display:grid;place-items:center;padding:20px;backdrop-filter:blur(5px)}.dialog-shade[hidden],.drawer-shade[hidden],.empty-state[hidden],[hidden]{display:none!important}.dialog{background:#fff;width:min(100%,600px);max-height:min(90vh,820px);border-radius:17px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 28px 100px #102c4c72;outline:0}.dialog-top{display:flex;gap:10px;align-items:center;padding:15px 19px;border-bottom:1px solid var(--line)}.dialog-logo{width:37px;height:37px;border-radius:50%;background:#e8f5ff;color:#268ac9;font-size:15px;font-weight:800;display:grid;place-items:center}.dialog-top>div{flex:1}.dialog-top b{display:block;font-size:14px}.dialog-top small{display:block;color:#97aab8;font-size:10px}.dialog-top button{background:#f2f6f9;width:31px;height:31px;border-radius:50%;color:#8296a6;display:grid;place-items:center}.dialog-top button .icon{width:16px}.dialog-scroll{padding:18px 23px 23px;overflow-y:auto;overscroll-behavior:contain}.detail-illustration{width:100%;height:242px;object-fit:cover;border-radius:11px}.detail-meta{display:flex;align-items:center;gap:7px;color:#3193d2;font-size:12px;font-weight:800;margin:18px 0 7px}.dialog-scroll h2{font-size:23px;line-height:1.45;color:#294963;margin:0 0 13px}.dialog-scroll p{color:#647f96;line-height:1.95;margin:12px 0;font-size:13px}.dialog-bottom{display:flex;gap:8px;margin-top:19px;border-top:1px solid #edf2f6;padding-top:16px}.dialog-bottom button{border-radius:9px;padding:11px 17px;font-weight:800;font-size:12px}.dialog-bottom .detail-save{background:#2993d4;color:#fff}.dialog-bottom .detail-copy{background:#edf5fb;color:#378ec5}.toast{position:fixed;bottom:27px;left:50%;transform:translateX(-50%) translateY(20px);border-radius:8px;background:#244761;color:white;padding:11px 20px;opacity:0;pointer-events:none;transition:.22s;z-index:200;box-shadow:0 12px 25px #18344b36;font-size:12px;white-space:nowrap}.toast.visible{opacity:1;transform:translateX(-50%)}.is-dialog{overflow:hidden}
@media(max-width:1450px){.app-shell{grid-template-columns:68px 290px minmax(0,1fr)}.info-pane{display:none}.avatar-rail{gap:13px}.message-area{width:min(100%,820px)}}
@media(max-width:1060px){.app-shell{grid-template-columns:270px minmax(0,1fr)}.avatar-rail{display:none}.channel-sidebar{height:100vh}.message-area{padding:23px 23px 27px}.chat-header{padding:0 22px}}
@media(max-width:720px){body{background:#e7eff8}.app-shell{display:block;min-height:100vh}.channel-sidebar{position:fixed;z-index:80;top:0;bottom:0;left:0;width:min(86vw,330px);height:100dvh;transform:translateX(-110%);transition:transform .24s ease;box-shadow:12px 0 45px #233e5850}.channel-sidebar.open{transform:translateX(0)}.drawer-x{display:grid;place-items:center;margin-left:auto;width:33px;height:33px;border-radius:50%;background:#edf5fb;color:#7191a8}.drawer-x .icon{width:16px}.sidebar-top{display:flex;align-items:center}.drawer-shade:not([hidden]){display:block;position:fixed;inset:0;background:#0d294972;z-index:70}.mobile-menu{display:grid}.chat-header{height:65px;min-height:65px;padding:0 13px 0 10px;position:sticky;top:0;box-shadow:0 2px 13px #3d719515}.channel-badge{width:36px;height:36px}.chat-title strong{font-size:15px}.chat-title small{font-size:10px}.head-actions{gap:0}.icon-button{width:34px;height:38px}.icon-button .icon{width:20px}.message-area{padding:18px 12px 102px}.day-pill{margin-bottom:16px}.welcome-note{padding:27px 23px 29px;border-radius:16px}.welcome-kicker{font-size:10px}.welcome-note h1{font-size:30px;line-height:1.35;margin:13px 0}.welcome-note p{font-size:12px;max-width:285px}.welcome-bubbles{opacity:.5;right:-48px;top:2px}.welcome-actions{margin-top:20px;gap:11px}.welcome-actions span{display:none}.topic-row{padding:22px 3px 14px}.topic-head b{font-size:15px}.topic-head span{font-size:10px}.topic-pills{margin-right:-12px;padding-right:12px}.topic-pill{padding:8px 12px}.search-row{height:45px}.stream-divider{margin:20px 0 14px}.post{gap:8px}.post-avatar{width:31px;height:31px;font-size:11px;align-self:flex-start;margin-top:11px}.post-body{padding:14px 14px 0}.post-title{font-size:16px;margin:8px 0}.post-desc{font-size:12px;margin-bottom:11px}.post-image{height:195px}.post-actions{padding:9px 11px;gap:5px}.post-actions .view{padding:8px 10px}.post-actions .copy{padding:6px}.bottom-tabs{position:fixed;display:flex;z-index:25;bottom:0;left:0;right:0;height:calc(62px + env(safe-area-inset-bottom));padding:5px 8px env(safe-area-inset-bottom);background:#fff;border-top:1px solid #e5ecf2;box-shadow:0 -6px 30px #41739b12}.bottom-tabs button{flex:1;color:#91a4b2;background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px}.bottom-tabs button .icon{width:20px;height:20px}.bottom-tabs button.active{color:#268dd4;font-weight:800}.dialog-shade{padding:0}.dialog{width:100%;height:100dvh;max-height:100dvh;border-radius:0}.dialog-top{padding-top:calc(14px + env(safe-area-inset-top))}.dialog-scroll{padding:16px 18px 40px}.detail-illustration{height:210px}.dialog-scroll h2{font-size:20px}.toast{bottom:calc(80px + env(safe-area-inset-bottom))}}
@media(max-width:360px){.message-area{padding-left:9px;padding-right:9px}.welcome-note{padding:24px 18px}.welcome-note h1{font-size:26px}.post-avatar{display:none}.post-image{height:177px}.post-actions .save{font-size:10px}.topic-head span{display:none}}