:root{
  --paper:#F6F3EC;
  --paper-deep:#EDE8DC;
  --ink:#1B201D;
  --ink-soft:#4A4C46;
  --muted:#83806F;
  --line:#DCD5C4;
  --card:#FFFFFF;
  --teal:#1F5C50;
  --teal-deep:#123B33;
  --teal-pale:#E4EEE9;
  --amber:#BD7F33;
  --amber-pale:#F6E8D3;
  --shadow:0 1px 2px rgba(27,32,29,.04),0 8px 24px rgba(27,32,29,.05);
  --radius:14px;
}
[data-theme="dark"]{
  --paper:#151916;
  --paper-deep:#0F1210;
  --ink:#ECE7DA;
  --ink-soft:#C7C2B3;
  --muted:#8C8878;
  --line:#2B302B;
  --card:#1B201C;
  --teal:#5FB39E;
  --teal-deep:#0F1210;
  --teal-pale:#1C2B26;
  --amber:#D9A35E;
  --amber-pale:#2B2417;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.35);
}
[data-theme="goodnight"]{
  --paper:#17131A;
  --paper-deep:#211A24;
  --ink:#F3EAF0;
  --ink-soft:#D5C4CC;
  --muted:#A9959F;
  --line:#382A34;
  --card:#211A24;
  --teal:#DFA8B8;
  --teal-deep:#120D15;
  --teal-pale:#342331;
  --amber:#F2C6A8;
  --amber-pale:#35251F;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 14px 34px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
  transition:background .25s,color .25s;
}
h1,h2,h3{font-family:"Noto Serif SC",serif;margin:0}
a{color:inherit;text-decoration:none}
.mono{font-family:"JetBrains Mono",monospace}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.topnav{position:sticky;top:0;z-index:40;background:var(--paper);border-bottom:1px solid var(--line)}
.topnav-inner{display:flex;align-items:center;gap:28px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;white-space:nowrap}
.brand-mark{width:26px;height:26px;border-radius:7px;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-weight:700;font-size:13px;flex-shrink:0}
.domain-pill{font-family:"JetBrains Mono",monospace;font-size:11px;font-weight:500;color:var(--amber);border:1px solid var(--line);border-radius:999px;padding:4px 8px;background:var(--card)}
.navlinks{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.navlinks::-webkit-scrollbar{display:none}
.navlinks button{border:none;background:transparent;color:var(--ink-soft);font-family:inherit;font-size:13.5px;padding:8px 13px;border-radius:8px;cursor:pointer;white-space:nowrap}
.navlinks button:hover{background:var(--paper-deep);color:var(--ink)}
.navlinks button.active{background:var(--teal-pale);color:var(--teal);font-weight:600}
.navtools{display:flex;gap:6px;align-items:center;flex-shrink:0}
.icon-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--card);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-soft)}
.icon-btn:hover,.icon-btn.active{border-color:var(--teal);color:var(--teal);background:var(--teal-pale)}
.hero{position:relative;background:radial-gradient(circle at 14% 18%,rgba(95,179,158,.16),transparent 42%),radial-gradient(circle at 82% 78%,rgba(189,127,51,.14),transparent 46%),linear-gradient(150deg,var(--teal-deep) 0%,#0E1A17 62%,#0A1311 100%);color:#F2EFE6;overflow:hidden;padding:54px 0 36px}
.hero::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 64px),repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 64px)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.42fr 1fr;gap:40px;align-items:start}
.eyebrow{font-family:"JetBrains Mono",monospace;font-size:11.5px;letter-spacing:.18em;color:#D9A35E;text-transform:uppercase;margin-bottom:18px;display:block}
.hero h1{font-size:clamp(40px,6vw,70px);line-height:1.02;font-weight:700;color:#FAF8F2}
.hero h1 .accent{color:#7FCBB3;font-style:italic}
.hero p.lede{font-size:16.5px;color:#C9C5B6;margin:18px 0 30px;max-width:480px;line-height:1.6}
.love-line{display:inline-flex;align-items:center;gap:8px;margin:-12px 0 28px!important;color:#F3D6D0!important;font-size:13.5px!important;letter-spacing:.02em}
.love-dot{width:24px;height:24px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:rgba(243,214,208,.12);color:#F6A9A0;box-shadow:0 0 24px rgba(246,169,160,.28);animation:heartPulse 1.9s ease-in-out infinite}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{font-family:inherit;font-size:14px;font-weight:600;padding:12px 22px;border-radius:10px;cursor:pointer;border:1px solid transparent}
.btn-primary{background:#7FCBB3;color:#0E1A17}
.btn-primary:hover{background:#9adcc6}
.btn-ghost{background:transparent;border-color:rgba(242,239,230,.28);color:#F2EFE6}
.btn-ghost:hover{border-color:#F2EFE6}
.hero-cards{display:flex;flex-direction:column;gap:14px}
.glass-card{background:rgba(246,243,236,.07);border:1px solid rgba(242,239,230,.14);border-radius:var(--radius);padding:18px 20px;backdrop-filter:blur(6px)}
.weather-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:4px}
.weather-temp{font-size:26px;font-weight:700;font-family:"Noto Serif SC",serif}
.weather-range{font-size:12px;color:#9D9A8B}
.weather-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;min-width:max-content}
.beijing-time{font-size:11px;color:#F3D6D0;background:rgba(246,243,236,.08);border:1px solid rgba(242,239,230,.12);border-radius:999px;padding:3px 7px}
.weather-desc{font-size:12.5px;color:#C9C5B6;margin-bottom:12px}
.weather-row{display:flex;gap:8px}
.weather-input{flex:1;min-width:0;background:rgba(0,0,0,.18);border:1px solid rgba(242,239,230,.18);color:#F2EFE6;border-radius:8px;padding:9px 11px;font-size:13px;font-family:inherit}
.weather-input::placeholder{color:#8C8878}
.weather-btn{background:#7FCBB3;border:none;color:#0E1A17;font-weight:600;font-size:13px;padding:9px 14px;border-radius:8px;cursor:pointer;white-space:nowrap}
.weather-btn:disabled{opacity:.68;cursor:wait}
.issue-card .issue-label{font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.14em;color:#7FCBB3;text-transform:uppercase}
.issue-card h3{font-size:22px;color:#FAF8F2;margin:6px 0 10px}
.issue-card p{font-size:13px;line-height:1.7;color:#C9C5B6;margin:0 0 16px}
.sync-note{margin-top:12px;color:#9D9A8B;font-size:11.5px}
.love-card{border-color:rgba(246,169,160,.24);background:linear-gradient(145deg,rgba(246,169,160,.12),rgba(246,243,236,.05))}
.love-card h3{font-size:21px;color:#FAF8F2;margin:6px 0 12px}
.love-card-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.love-card-grid>div{border-radius:10px;background:rgba(0,0,0,.16);padding:12px}
.love-number{font-family:"Noto Serif SC",serif;font-size:26px;font-weight:800;color:#F6A9A0;line-height:1}
.love-number.small{font-size:28px}
.love-label{font-size:11.5px;line-height:1.45;color:#C9C5B6;margin-top:7px}
.piano-teacher-card{border-color:rgba(242,198,168,.22);background:linear-gradient(145deg,rgba(242,198,168,.1),rgba(246,243,236,.045))}
.piano-teacher-card h3{font-size:19px;color:#FAF8F2;margin:6px 0 9px}
.piano-teacher-card p{font-size:12.8px;line-height:1.75;color:#C9C5B6;margin:0}
.piano-wrap{position:relative;width:min(560px,100%);display:grid;grid-template-columns:1fr;gap:10px;align-items:end;opacity:.96;margin-top:34px}
.piano-copy{padding-bottom:0}
.piano-copy span{display:block;font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:#D9A35E;margin-bottom:5px}
.piano-copy b{display:block;font-family:"Noto Serif SC",serif;font-size:17px;line-height:1.45;color:#FAF8F2;font-weight:700}
.piano-easter-egg{margin-top:10px;display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;border:1px solid rgba(217,163,94,.45);background:rgba(217,163,94,.08);color:#D9A35E;font-family:"JetBrains Mono",monospace;font-size:11.5px;letter-spacing:.06em;cursor:pointer;transition:background .2s,border-color .2s}
.piano-easter-egg:hover{background:rgba(217,163,94,.18);border-color:#D9A35E}
.piano-easter-egg.playing{background:rgba(217,163,94,.28);border-color:#D9A35E;color:#FAF8F2}
.piano-keys{position:relative;height:64px;border-radius:10px 10px 13px 13px;background:#151515;padding:6px;display:grid;grid-template-columns:repeat(8,1fr);gap:3px;box-shadow:0 18px 46px rgba(0,0,0,.28),inset 0 1px rgba(255,255,255,.14)}
.piano-key{position:relative;display:block;border-radius:0 0 7px 7px;animation:pianoBreath 4.2s ease-in-out infinite;animation-delay:calc(var(--i) * -.14s)}
.piano-key.white{height:52px;background:linear-gradient(#fff,#e9e2d6);box-shadow:inset 0 -8px 12px rgba(27,32,29,.08)}
.piano-key.black{width:62%;height:36px;background:linear-gradient(#222,#060606);margin-left:-34%;z-index:2;box-shadow:0 8px 14px rgba(0,0,0,.42)}
.piano-key.black + .piano-key.white{margin-left:-34%}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.stat-cell{background:rgba(0,0,0,.16);border-radius:8px;padding:9px 12px}
.stat-cell .num{font-family:"Noto Serif SC",serif;font-size:19px;font-weight:700;color:#FAF8F2}
.stat-cell .lbl{font-size:11px;color:#9D9A8B}
.controlbar{background:var(--paper);border-bottom:1px solid var(--line);padding:22px 0}
.controlbar-inner{display:flex;gap:16px;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;color:var(--muted);font-weight:600}
.field select,.field input{font-family:inherit;font-size:14px;padding:10px 13px;border-radius:9px;border:1px solid var(--line);background:var(--card);color:var(--ink);min-width:200px}
.field.grow{flex:1}
.field.grow input{width:100%;min-width:0}
.status-banner{margin-top:18px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink-soft);font-size:13px}
.status-banner.error{border-color:#b85d4f;color:#9C4A3C;background:#fff4f1}
.main{padding:34px 0 80px}
.layout{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:start}
.focus-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:sticky;top:80px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-family:"JetBrains Mono",monospace}
.tag.focus-tag{color:var(--amber)}
.focus-card h3{font-size:18px;line-height:1.4;margin:10px 0 12px}
.focus-card p{font-size:13.5px;line-height:1.75;color:var(--ink-soft);margin:0}
.love-focus{overflow:hidden}
.love-focus::after{content:"♥";position:absolute;right:18px;bottom:-18px;font-size:70px;color:rgba(240,111,143,.08);font-family:serif;pointer-events:none}
.focus-mini{position:relative;margin-top:16px;padding:10px 12px;border-radius:10px;background:var(--teal-pale);color:var(--teal);font-size:12.5px;line-height:1.55}
.section{margin-bottom:38px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line);gap:18px}
.section-head .tag{color:var(--teal)}
.section-head h2{font-size:21px;margin-top:4px}
.count-pill{background:var(--teal-pale);color:var(--teal);font-weight:700;font-size:13px;padding:4px 11px;border-radius:99px}
.item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:none}
.item-body{flex:1;min-width:0}
.item-date{font-family:"JetBrains Mono",monospace;font-size:11.5px;color:var(--muted)}
.item-title{font-size:16px;font-weight:700;margin:5px 0 8px;line-height:1.45}
.item-title a:hover{text-decoration:underline;text-decoration-thickness:1px}
.item-summary{font-size:13.5px;line-height:1.7;color:var(--ink-soft);margin:0 0 10px}
.item-importance{display:flex;gap:8px;font-size:12.5px;line-height:1.6;color:var(--ink-soft);background:var(--amber-pale);border-radius:8px;padding:9px 11px;margin-bottom:10px}
.item-importance b{color:var(--amber);flex-shrink:0;font-weight:700}
.item-source{font-size:12.5px;font-weight:600;color:var(--teal)}
.star-btn{flex-shrink:0;width:32px;height:32px;border-radius:9px;border:1px solid var(--line);background:var(--card);color:var(--muted);cursor:pointer;font-size:15px;display:flex;align-items:center;justify-content:center}
.star-btn:hover,.star-btn.active{border-color:var(--amber);color:var(--amber);background:var(--amber-pale)}
.heart-save{flex-shrink:0;width:34px;height:34px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:#B17887;cursor:pointer;font-size:19px;display:flex;align-items:center;justify-content:center;transition:transform .15s,border-color .15s,background .15s,color .15s}
.heart-save:hover{transform:translateY(-1px) scale(1.05);border-color:#F06F8F;color:#F06F8F}
.heart-save.active{border-color:#F06F8F;background:#FCE8ED;color:#E84772;box-shadow:0 7px 18px rgba(232,71,114,.16)}
.note-line{font-size:12px;color:var(--muted);margin-top:-4px;margin-bottom:18px}
.yt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.yt-card{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--card);box-shadow:var(--shadow)}
.yt-card .yt-channel{font-weight:700;font-size:14.5px;margin-bottom:6px;color:var(--teal)}
.yt-card .yt-desc{font-size:12.5px;color:var(--muted);line-height:1.6;margin-bottom:10px}
.yt-card .yt-video{font-size:13px;color:var(--ink-soft);line-height:1.6}
.yt-card .yt-video a{color:var(--teal);font-weight:600;text-decoration:underline}
.hidden{display:none!important}
footer{border-top:1px solid var(--line);padding:26px 0;text-align:center;font-size:12px;color:var(--muted)}
.love-layer{position:fixed;inset:0;pointer-events:none;z-index:100;overflow:hidden}
.click-heart{position:fixed;transform:translate(-50%,-50%) rotate(var(--rotate));color:#F06F8F;text-shadow:0 0 14px rgba(240,111,143,.36);animation:clickHeart 1.15s cubic-bezier(.2,.8,.2,1) forwards;will-change:transform,opacity}
.click-heart.with-phrase{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:999px;background:rgba(255,244,247,.9);box-shadow:0 10px 28px rgba(240,111,143,.22);font-size:14px!important;color:#D84769}
.click-heart.with-phrase b{font-size:16px}
.click-heart.with-phrase em{font-style:normal;white-space:nowrap;font-size:12px;font-weight:700}
.ambient-heart{position:absolute;color:rgba(240,111,143,.13);font-size:clamp(34px,5vw,72px);filter:blur(.2px);animation:ambientFloat 9s ease-in-out infinite}
.ambient-heart-one{left:7%;top:18%;animation-delay:-2s}
.ambient-heart-two{right:8%;top:34%;font-size:clamp(26px,4vw,54px);animation-delay:-5s}
.ambient-heart-three{left:72%;bottom:10%;font-size:clamp(22px,3vw,42px);animation-delay:-7s}
.ambient-note{position:absolute;color:rgba(242,198,168,.18);font-size:clamp(22px,4vw,50px);font-family:"Noto Serif SC",serif;animation:ambientFloat 8s ease-in-out infinite;filter:blur(.1px)}
.ambient-note-one{left:16%;bottom:18%;animation-delay:-3s}
.ambient-note-two{right:16%;top:16%;animation-delay:-6s}
.fireworks-layer{position:fixed;inset:0;pointer-events:none;z-index:105;overflow:hidden}
.firework{position:absolute;width:0;height:0}
.firework::before{content:"";position:absolute;left:0;top:0;width:10px;height:10px;margin:-5px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.95),rgba(255,255,255,0) 70%);animation:fireworkFlash .5s ease-out forwards}
.firework-particle{position:absolute;left:0;top:0;width:6px;height:6px;margin:-3px;border-radius:50%;animation:fireworkParticle 1.1s cubic-bezier(.16,.84,.44,1) forwards}
@keyframes fireworkFlash{
  0%{opacity:1;transform:scale(.4)}
  100%{opacity:0;transform:scale(2.8)}
}
@keyframes fireworkParticle{
  0%{transform:translate(0,0) scale(1);opacity:1}
  70%{opacity:.9}
  100%{transform:translate(var(--dx),var(--dy)) scale(.25);opacity:0}
}
.love-story{position:fixed;inset:0;pointer-events:none;z-index:106;overflow:hidden}
.love-story-orb{position:absolute;top:38%;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;transition:left 1.6s cubic-bezier(.22,.8,.28,1);box-shadow:0 0 22px 6px currentColor}
.love-story-orb-a{background:#D9A35E;color:rgba(217,163,94,.55)}
.love-story-orb-b{background:#F06F8F;color:rgba(240,111,143,.55)}
.love-story[data-stage="3"] .love-story-orb{width:30px;height:30px;margin:-15px 0 0 -15px;box-shadow:0 0 34px 10px currentColor}
.love-story-heart{position:absolute;top:34%;color:#F3D6D0;font-size:14px;opacity:0;transition:opacity .8s ease;text-shadow:0 0 10px rgba(243,214,208,.5)}
.love-story-heart-1{left:40%}
.love-story-heart-2{left:50%;top:30%}
.love-story-heart-3{left:60%}
.love-story[data-stage="1"] .love-story-heart-2,
.love-story[data-stage="2"] .love-story-heart-1,
.love-story[data-stage="2"] .love-story-heart-2,
.love-story[data-stage="2"] .love-story-heart-3,
.love-story[data-stage="3"] .love-story-heart-1,
.love-story[data-stage="3"] .love-story-heart-2,
.love-story[data-stage="3"] .love-story-heart-3{opacity:1;animation:ambientFloat 3.4s ease-in-out infinite}
.love-story-glow{position:absolute;left:50%;top:38%;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;background:radial-gradient(circle,rgba(255,244,240,.9),rgba(240,111,143,.35) 55%,transparent 75%);animation:loveStoryGlow 1.8s ease-out forwards}
.love-story-caption{position:absolute;left:50%;top:47%;transform:translateX(-50%);font-family:"Noto Serif SC",serif;font-size:15px;letter-spacing:.04em;color:#FAF8F2;text-shadow:0 2px 12px rgba(0,0,0,.4);animation:captionFade .7s ease}
@keyframes loveStoryGlow{
  0%{opacity:0;transform:scale(.3)}
  40%{opacity:1;transform:scale(2.4)}
  100%{opacity:.85;transform:scale(3.4)}
}
@keyframes captionFade{
  0%{opacity:0;transform:translate(-50%,6px)}
  100%{opacity:1;transform:translate(-50%,0)}
}
@keyframes clickHeart{
  0%{opacity:0;transform:translate(-50%,-35%) scale(.58) rotate(var(--rotate))}
  14%{opacity:1;transform:translate(calc(-50% + var(--drift) / 5),-70%) scale(1) rotate(var(--rotate))}
  100%{opacity:0;transform:translate(calc(-50% + var(--drift)),-190%) scale(1.65) rotate(calc(var(--rotate) + 16deg))}
}
@keyframes ambientFloat{
  0%,100%{transform:translate3d(0,0,0) rotate(-8deg);opacity:.42}
  50%{transform:translate3d(16px,-24px,0) rotate(8deg);opacity:.78}
}
@keyframes heartPulse{
  0%,100%{transform:scale(1);box-shadow:0 0 18px rgba(246,169,160,.22)}
  50%{transform:scale(1.12);box-shadow:0 0 30px rgba(246,169,160,.42)}
}
@keyframes pianoBreath{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(1.5px)}
}
.floating-envelope{position:fixed;right:22px;bottom:22px;z-index:70;border:1px solid rgba(240,111,143,.25);background:linear-gradient(145deg,#fff7f8,#fce6ec);color:#9C4A5D;border-radius:999px;padding:10px 14px;display:flex;align-items:center;gap:8px;box-shadow:0 12px 34px rgba(156,74,93,.22);cursor:pointer;font-family:inherit;font-weight:700}
.floating-envelope span{font-size:18px}
.floating-envelope b{font-size:12.5px}
.floating-envelope:hover{transform:translateY(-1px);box-shadow:0 16px 42px rgba(156,74,93,.28)}
.letter-backdrop{position:fixed;inset:0;z-index:120;background:rgba(18,13,17,.46);display:flex;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(5px)}
.letter-card{position:relative;width:min(460px,100%);border-radius:18px;background:linear-gradient(160deg,#FFF9F6,#FCE8EE);color:#312227;padding:30px;box-shadow:0 24px 80px rgba(18,13,17,.34);border:1px solid rgba(240,111,143,.22)}
.letter-card::before{content:"";position:absolute;inset:10px;border:1px solid rgba(156,74,93,.12);border-radius:14px;pointer-events:none}
.letter-close{position:absolute;right:14px;top:12px;width:32px;height:32px;border:none;border-radius:999px;background:rgba(156,74,93,.08);color:#9C4A5D;font-size:22px;cursor:pointer}
.letter-kicker{font-family:"JetBrains Mono",monospace;color:#C3657A;font-size:11px;letter-spacing:.16em;text-transform:uppercase}
.letter-card h2{font-size:25px;margin:10px 0 14px;color:#4D2933}
.letter-card p{font-size:15px;line-height:1.9;margin:0;color:#614650}
.letter-sign{text-align:right;margin-top:22px;font-family:"Noto Serif SC",serif;color:#9C4A5D;font-weight:700}
[data-theme="goodnight"] .hero{background:radial-gradient(circle at 18% 16%,rgba(240,111,143,.18),transparent 42%),radial-gradient(circle at 82% 72%,rgba(242,198,168,.14),transparent 48%),linear-gradient(150deg,#1A0F17 0%,#120D15 62%,#0D090F 100%)}
[data-theme="goodnight"] .btn-primary{background:#F2C6D2;color:#2B151F}
[data-theme="goodnight"] .heart-save.active{background:#3A2330;color:#F6A9A0}
[data-theme="goodnight"] .piano-keys{background:#100B10;box-shadow:0 18px 46px rgba(0,0,0,.38),0 0 28px rgba(242,198,210,.08)}
[data-theme="goodnight"] .piano-key.white{background:linear-gradient(#F7EEF2,#D9C8D0)}
[data-theme="goodnight"] .piano-key.black{background:linear-gradient(#2C1D27,#090609)}
[data-theme="goodnight"] .piano-easter-egg{border-color:rgba(242,198,210,.45);color:#F2C6D2;background:rgba(242,198,210,.08)}
[data-theme="goodnight"] .piano-easter-egg:hover,[data-theme="goodnight"] .piano-easter-egg.playing{background:rgba(242,198,210,.22);border-color:#F2C6D2;color:#FAF8F2}
[data-theme="goodnight"] .floating-envelope{background:linear-gradient(145deg,#3A2330,#2B1A25);color:#F2C6D2;border-color:#5B3445}
[data-theme="goodnight"] .letter-card{background:linear-gradient(160deg,#31202C,#211722);color:#F3EAF0}
[data-theme="goodnight"] .letter-card h2,[data-theme="goodnight"] .letter-sign{color:#F2C6D2}
[data-theme="goodnight"] .letter-card p{color:#E5D2DA}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .focus-card{position:static}
}
@media (max-width:880px){
  .hero-grid{grid-template-columns:1fr}
  .hero{padding-bottom:34px}
  .piano-wrap{width:100%;margin-top:24px;grid-template-columns:1fr}
}
@media (max-width:620px){
  .wrap{padding:0 18px}
  .topnav-inner{gap:14px}
  .brand span:nth-child(2){display:none}
  .domain-pill{display:none}
  .hero{padding-top:44px}
  .hero h1{font-size:42px}
  .piano-wrap{padding:0;margin-top:22px}
  .piano-copy b{font-size:15px}
  .piano-keys{height:58px;gap:2px}
  .piano-key.white{height:46px}
  .piano-key.black{height:32px}
  .love-line{align-items:flex-start;line-height:1.55}
  .controlbar{padding:16px 0}
  .field{width:100%}
  .field select,.field input{width:100%;min-width:0}
  .item{gap:10px;padding:16px 0}
  .item-title{font-size:15px}
  .item-summary{font-size:13px}
  .floating-envelope{right:14px;bottom:14px;padding:10px;width:42px;height:42px;justify-content:center}
  .floating-envelope b{display:none}
  .letter-card{padding:26px 22px}
  .weather-row{flex-direction:column}
}