/* 脑海便利店 — 微博式感想流 */
:root{
  --ink-900:#1a1a1a;--ink-800:#2d2d2d;--ink-700:#444;--ink-600:#5a5a5a;
  --ink-500:#777;--ink-400:#999;--ink-300:#ccc;--ink-200:#e8e8e8;--ink-100:#f4f4f4;--ink-050:#fafafa;
  --accent:#8b6535;--accent-dark:#6b4a25;--accent-light:#f5ede0;
  --white:#fff;--paper:#faf7f2;
  --radius-s:8px;--radius-m:14px;--radius-l:20px;--radius-xl:32px;
  --shadow-s:0 1px 2px rgba(0,0,0,.04),0 2px 8px rgba(0,0,0,.03);
  --shadow-m:0 4px 12px rgba(0,0,0,.05),0 8px 28px rgba(0,0,0,.06);
  --shadow-l:0 8px 24px rgba(0,0,0,.07),0 20px 48px rgba(0,0,0,.08);
  --maxw:680px;--nav-h:60px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--paper);color:var(--ink-800);overflow-x:hidden;font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}

/* Nav */
.glass-nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(250,247,242,.85);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--ink-200);}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;}
.nav-brand{font-size:16px;font-weight:800;color:var(--ink-900);letter-spacing:-.3px;display:flex;align-items:center;gap:8px;}
.nav-brand svg{width:24px;height:24px;}
.nav-brand .sep{color:var(--ink-300);margin:0 4px;font-weight:300;}
.nav-brand .sub{font-size:12px;color:var(--ink-500);font-weight:400;}
.nav-links{display:flex;gap:20px;align-items:center;}
.nav-links a{font-size:13px;color:var(--ink-600);transition:color .2s;}
.nav-links a:hover{color:var(--accent);}
.nav-count{font-size:12px;color:var(--ink-400);font-weight:400;}
@media(max-width:640px){.nav-links{gap:12px;}.nav-count{display:none;}}

/* Hero */
.hero{padding:100px 24px 60px;text-align:center;position:relative;}
.hero::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:500px;height:350px;background:radial-gradient(ellipse,rgba(139,101,53,.05) 0%,transparent 70%);pointer-events:none;}
.hero-icon{width:56px;height:56px;margin:0 auto 20px;opacity:.7;}
.hero h1{font-size:32px;font-weight:900;color:var(--ink-900);letter-spacing:-.5px;margin-bottom:12px;line-height:1.25;}
.hero h1 .italic{font-family:'Songti SC','SimSun','STSong',serif;font-style:italic;font-weight:700;color:var(--accent);}
.hero .hero-sub{font-size:14px;color:var(--ink-500);max-width:420px;margin:0 auto;line-height:1.8;}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:32px;}
.hero-stat .num{font-size:24px;font-weight:900;color:var(--accent);font-family:'Songti SC','SimSun','STSong',serif;}
.hero-stat .label{font-size:11px;color:var(--ink-500);letter-spacing:1px;margin-top:2px;}

/* Composer */
.composer{max-width:var(--maxw);margin:0 auto;padding:0 24px 24px;}
.composer-box{background:var(--white);border:1px solid var(--ink-200);border-radius:var(--radius-m);padding:16px;transition:border-color .2s,box-shadow .2s;}
.composer-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(139,101,53,.08);}
.composer-box textarea{width:100%;border:none;outline:none;resize:none;font-family:inherit;font-size:14px;line-height:1.7;color:var(--ink-800);background:transparent;min-height:80px;}
.composer-box textarea::placeholder{color:var(--ink-400);}
.composer-bar{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:12px;border-top:1px solid var(--ink-200);}
.composer-bar .mood-preview{font-size:12px;color:var(--ink-500);display:flex;align-items:center;gap:6px;}
.composer-bar .mood-preview svg{width:16px;height:16px;}
.composer-bar .mood-preview .mood-name{font-weight:600;}
.composer-bar button{font-size:13px;font-weight:600;color:#fff;background:var(--accent);border:none;border-radius:20px;padding:6px 20px;cursor:pointer;transition:background .2s,transform .1s;}
.composer-bar button:hover{background:var(--accent-dark);}
.composer-bar button:active{transform:scale(.97);}
.composer-bar button:disabled{background:var(--ink-300);cursor:not-allowed;}
.composer-lock{font-size:12px;color:var(--ink-400);display:flex;align-items:center;gap:4px;cursor:pointer;}
.composer-lock:hover{color:var(--ink-600);}
.char-count{font-size:11px;color:var(--ink-400);margin-right:12px;}

/* Token modal */
.token-modal{position:fixed;inset:0;background:rgba(0,0,0,.3);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s;}
.token-modal.show{opacity:1;pointer-events:auto;}
.token-modal-inner{background:var(--white);border-radius:var(--radius-m);padding:28px;width:90%;max-width:360px;box-shadow:var(--shadow-l);}
.token-modal h3{font-size:16px;font-weight:800;margin-bottom:8px;color:var(--ink-900);}
.token-modal p{font-size:12px;color:var(--ink-500);margin-bottom:16px;}
.token-modal input{width:100%;border:1px solid var(--ink-300);border-radius:8px;padding:10px 14px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s;}
.token-modal input:focus{border-color:var(--accent);}
.token-modal-btns{display:flex;gap:10px;margin-top:16px;}
.token-modal-btns button{flex:1;padding:8px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none;font-family:inherit;}
.token-modal-btns .cancel{background:var(--ink-100);color:var(--ink-600);}
.token-modal-btns .confirm{background:var(--accent);color:#fff;}

/* Filter bar */
.filter-bar{max-width:var(--maxw);margin:0 auto;padding:0 24px 20px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.filter-chip{font-size:12px;padding:5px 14px;border-radius:16px;border:1px solid var(--ink-200);color:var(--ink-500);cursor:pointer;transition:all .15s;background:transparent;font-family:inherit;white-space:nowrap;}
.filter-chip:hover{border-color:var(--ink-400);color:var(--ink-700);}
.filter-chip.active{background:var(--ink-900);color:#fff;border-color:var(--ink-900);}
.filter-search{flex:1;min-width:120px;border:1px solid var(--ink-200);border-radius:16px;padding:5px 14px 5px 32px;font-size:12px;color:var(--ink-600);outline:none;font-family:inherit;background:var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%23999' stroke-width='2'%3E%3Ccircle cx='6' cy='6' r='4'/%3E%3Cpath d='M14 14l-4-4'/%3E%3C/svg%3E") no-repeat 10px center;transition:border-color .2s;}
.filter-search:focus{border-color:var(--accent);}

/* Timeline */
.timeline{max-width:var(--maxw);margin:0 auto;padding:0 24px 60px;}

/* Year/Month collapsible dividers */
.year-divider{display:flex;align-items:center;gap:6px;margin:36px 0 8px;padding:8px 10px;cursor:pointer;border-radius:var(--radius-s);transition:background .15s;user-select:none;}
.year-divider:hover{background:rgba(139,101,53,.05);}
.year-divider .year-toggle{font-size:13px;color:var(--accent);width:16px;text-align:center;transition:transform .2s;}
.year-divider .year-label{font-size:17px;font-weight:900;color:var(--ink-900);letter-spacing:-.3px;}
.year-divider .year-count{font-size:11px;color:var(--ink-400);margin-left:auto;}

.month-group{margin-bottom:4px;}
.month-divider{display:flex;align-items:center;gap:6px;margin:20px 0 12px;padding:6px 10px 6px 24px;cursor:pointer;border-radius:var(--radius-s);transition:background .15s;user-select:none;}
.month-divider:hover{background:rgba(0,0,0,.025);}
.month-divider .month-toggle{font-size:12px;color:var(--ink-500);width:14px;text-align:center;transition:transform .2s;}
.month-divider .year-month{font-size:14px;font-weight:800;color:var(--ink-700);letter-spacing:.5px;}
.month-divider .count{font-size:11px;color:var(--ink-400);margin-left:8px;}
.month-divider::after{content:'';flex:1;height:1px;background:linear-gradient(to right,var(--ink-200),transparent);margin-left:12px;}

/* Moment card */
.moment-card{background:var(--white);border:1px solid var(--ink-200);border-radius:var(--radius-m);margin-bottom:16px;overflow:hidden;transition:box-shadow .25s,border-color .25s;position:relative;}
.moment-card:hover{box-shadow:var(--shadow-m);border-color:var(--ink-300);}

/* Card header strip — left mood color bar */
.moment-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--mood-color,var(--ink-300));}

.moment-header{display:flex;align-items:flex-start;gap:14px;padding:16px 18px 0 18px;}
.moment-mood-icon{width:40px;height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--mood-bg,transparent);color:var(--mood-color,var(--ink-500));}
.moment-mood-icon svg{width:28px;height:28px;}
.moment-meta{flex:1;min-width:0;}
.moment-date-row{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;}
.moment-date{font-size:15px;font-weight:800;color:var(--ink-900);letter-spacing:-.2px;}
.moment-weekday{font-size:12px;color:var(--ink-400);}
.moment-weather{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--ink-500);}
.moment-weather .w-icon{font-size:14px;}
.moment-weather .w-temp{color:var(--ink-600);}
.moment-weather .w-city{color:var(--ink-400);}
.moment-mood-tag{font-size:11px;font-weight:600;color:var(--mood-color,var(--ink-500));padding:2px 8px;border-radius:10px;background:var(--mood-bg,var(--ink-100));white-space:nowrap;}

/* Card body */
.moment-body{padding:12px 18px 14px 18px;}
.moment-text{font-size:14.5px;line-height:1.85;color:var(--ink-700);word-break:break-word;white-space:pre-wrap;}
.moment-text.collapsed{max-height:120px;overflow:hidden;position:relative;}
.moment-text.collapsed::after{content:'';position:absolute;bottom:0;left:0;right:0;height:40px;background:linear-gradient(to bottom,transparent,var(--white));}
.moment-expand{font-size:12px;color:var(--accent);cursor:pointer;margin-top:4px;display:inline-block;}
.moment-expand:hover{text-decoration:underline;}

/* Card footer */
.moment-footer{display:flex;align-items:center;gap:16px;padding:0 18px 14px 18px;border-top:1px solid var(--ink-100);margin-top:4px;padding-top:10px;}
.moment-footer button{font-size:12px;color:var(--ink-500);background:none;border:none;cursor:pointer;display:flex;align-items:center;gap:4px;font-family:inherit;transition:color .15s;padding:2px 0;}
.moment-footer button:hover{color:var(--accent);}
.moment-footer button svg{width:14px;height:14px;}
.moment-footer .edit-btn{margin-left:auto;}
.moment-footer .source-badge{font-size:10px;color:var(--ink-400);padding:1px 6px;border-radius:8px;background:var(--ink-100);}

/* 灯泡点赞 */
.moment-footer .like-btn{transition:color .2s;}
.moment-footer .like-btn.liked{color:var(--accent);}
.moment-footer .like-btn.liked:hover{color:var(--accent-dark);}
.moment-footer .like-btn.liked svg{
  animation:bulbGlow .4s ease;
  filter:drop-shadow(0 0 3px rgba(217,154,61,.5)) drop-shadow(0 0 8px rgba(217,154,61,.3));
}
@keyframes bulbGlow{
  0%{transform:scale(1);}
  35%{transform:scale(1.3) rotate(-8deg);}
  60%{transform:scale(.92) rotate(4deg);}
  100%{transform:scale(1) rotate(0);}
}

/* 正文链接 */
.moment-link{color:#3b7bbf;text-decoration:none;border-bottom:1px solid rgba(59,123,191,.25);word-break:break-all;transition:color .15s,border-color .15s;}
.moment-link:hover{color:#2a5f99;border-bottom-color:rgba(42,95,153,.6);}

/* Comments */
.comments-section{padding:0 18px 14px;border-top:1px solid var(--ink-100);display:none;}
.comments-section.show{display:block;}
.comments-list{margin-bottom:10px;}
.comment-item{padding:8px 0;border-bottom:1px solid var(--ink-100);}
.comment-item:last-child{border-bottom:none;}
.comment-head{display:flex;align-items:center;gap:6px;margin-bottom:2px;}
.comment-nick{font-size:12px;font-weight:600;color:var(--ink-700);}
.comment-time{font-size:10px;color:var(--ink-400);}
.comment-text{font-size:13px;color:var(--ink-600);line-height:1.6;}
.comment-input-row{display:flex;gap:8px;margin-top:8px;}
.comment-input-row input{flex:1;border:1px solid var(--ink-200);border-radius:8px;padding:6px 10px;font-size:12px;outline:none;font-family:inherit;transition:border-color .2s;}
.comment-input-row input:focus{border-color:var(--accent);}
.comment-input-row button{font-size:12px;padding:4px 12px;border-radius:8px;background:var(--ink-100);color:var(--ink-600);border:none;cursor:pointer;font-family:inherit;transition:background .15s;}
.comment-input-row button:hover{background:var(--ink-200);}

/* Edit mode */
.edit-area{display:none;}
.edit-area.show{display:block;}
.edit-area textarea{width:100%;border:1px solid var(--accent);border-radius:8px;padding:10px;font-size:14px;font-family:inherit;outline:none;line-height:1.7;min-height:80px;resize:vertical;}
.edit-area-btns{display:flex;gap:8px;margin-top:8px;}
.edit-area-btns button{font-size:12px;padding:4px 12px;border-radius:8px;cursor:pointer;border:none;font-family:inherit;font-weight:600;}
.edit-area-btns .save{background:var(--accent);color:#fff;}
.edit-area-btns .cancel{background:var(--ink-100);color:var(--ink-600);}

/* Load more */
.load-more{text-align:center;padding:20px;}
.load-more button{font-size:13px;color:var(--ink-500);background:none;border:1px solid var(--ink-200);border-radius:20px;padding:8px 28px;cursor:pointer;font-family:inherit;transition:all .15s;}
.load-more button:hover{color:var(--accent);border-color:var(--accent);}
.loading-dots{text-align:center;padding:40px;color:var(--ink-400);font-size:13px;}
.loading-dots .dot{display:inline-block;animation:dotPulse 1.4s infinite;}
.loading-dots .dot:nth-child(2){animation-delay:.2s;}
.loading-dots .dot:nth-child(3){animation-delay:.4s;}
@keyframes dotPulse{0%,80%,100%{opacity:.3}40%{opacity:1}}

/* Empty state */
.empty-state{text-align:center;padding:60px 24px;color:var(--ink-400);}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;opacity:.4;}
.empty-state p{font-size:14px;}

/* Back to top */
.to-top{position:fixed;bottom:24px;right:24px;width:40px;height:40px;border-radius:50%;background:var(--ink-900);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(20px);transition:all .3s;z-index:90;border:none;font-size:16px;}
.to-top.show{opacity:1;transform:translateY(0);}
.to-top:hover{background:var(--accent);transform:translateY(-3px);}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .4s ease,transform .4s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--ink-900);color:#fff;padding:8px 20px;border-radius:20px;font-size:13px;z-index:300;opacity:0;transition:all .3s;white-space:nowrap;}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1;}