/* 小小森林 · 样式 · 第二版（森系）
   —— 纸白为底，墨色为字，颗粒与暗角做旧，暮色走尘灰蓝而非糖果色。 */

:root{
  color-scheme: light;
  --paper:#f5f2e6;
  --ink:#3f4a39;
  --ink-soft:#6a7561;
  --accent:#7d8f6c;
  --serif: Lora, "Noto Serif SC", Georgia, "Songti SC", "Source Han Serif SC", "SimSun", serif;
}

*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden;overscroll-behavior:none}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  -webkit-font-smoothing:antialiased;
}

#journey,#viewport{height:100svh;position:relative}
#viewport{overflow:hidden;isolation:isolate;background:var(--paper);touch-action:none}

/* 天空 */
#sky{position:absolute;inset:0;z-index:0;overflow:hidden;
  background:linear-gradient(180deg,#f6f3e7 0%,#f0efe0 46%,#e5e7d4 100%);}
#sky-night{position:absolute;inset:0;opacity:0;
  background:linear-gradient(180deg,#59626f 0%,#6b7382 28%,#85858f 54%,#a89a97 76%,#c9ab8e 100%);}
#stars{position:absolute;inset:0;width:100%;height:100%;opacity:0}

/* 世界（镜头整体平移） */
#world{position:absolute;left:0;top:0;width:3400px;height:900px;transform-origin:0 0;z-index:2;will-change:transform}
#svg-back,#svg-front{position:absolute;left:0;top:0;width:3400px;height:900px;display:block;overflow:visible}
#svg-back{z-index:1}
#actors{position:absolute;left:0;top:0;width:3400px;height:900px;z-index:2}
#svg-front{z-index:3;pointer-events:none}

/* 暮色调：放在世界层的背景之上、角色之下，暮色里角色仍保有本色 */
#tint{position:absolute;left:0;top:0;width:3400px;height:900px;z-index:1;pointer-events:none;opacity:0;
  background:linear-gradient(180deg,
    rgba(226,190,148,0) 8%,
    rgba(224,186,150,.12) 30%,
    rgba(170,158,152,.20) 56%,
    rgba(78,88,108,.44) 100%);}

/* 全屏暮霭：压在最上层，把前景与角色一起收进同一个时段 */
#haze{position:absolute;inset:0;z-index:4;pointer-events:none;opacity:0;
  background:linear-gradient(180deg,rgba(88,98,118,.34) 0%,rgba(104,106,120,.26) 46%,rgba(92,94,110,.34) 100%);}

/* 暮色中的文字转为浅色，否则深墨压在暗天上会读不出来 */
.plate h1,.plate h2,.plate .body,.plate .lede,.plate .kicker{transition:color .8s ease}
.is-dusk .plate h1,.is-dusk .plate h2{color:#ece8da}
.is-dusk .plate .body,.is-dusk .plate .lede{color:#d0d5c4}
.is-dusk .plate .kicker{color:#b4bdaa}
.is-dusk .plate .rule{opacity:.42}
.is-dusk .enter{border-color:#9fa896;color:#c9cfbe;background:rgba(255,255,255,.05)}
.is-dusk .enter:hover{background:#c9cfbe;color:#2f3a2c}

/* 暗角：把注意力收进画面中心 */
#vignette{position:absolute;inset:0;z-index:5;pointer-events:none;
  background:radial-gradient(124% 94% at 50% 42%, rgba(0,0,0,0) 50%, rgba(74,82,62,.20) 100%);}

/* 纸质颗粒：叠在画面之上、文字之下 */
#grain{position:absolute;inset:0;z-index:6;pointer-events:none;
  opacity:.68;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncR type='linear' slope='1.7' intercept='-0.35'/%3E%3CfeFuncG type='linear' slope='1.7' intercept='-0.35'/%3E%3CfeFuncB type='linear' slope='1.7' intercept='-0.35'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.42'/%3E%3C/svg%3E");
}

/* —— 角色 —— */
.actor{position:absolute;left:0;top:0;width:0;height:0;will-change:transform}
.actor-inner{position:absolute;left:0;top:0;width:0;height:0}
.actor-flip{transform-origin:50% 100%;will-change:transform}
.actor svg{display:block;overflow:visible}
.actor .cast{fill:#4c5544;opacity:.11;transition:opacity .25s ease}
.actor.air .cast{opacity:.04}
.actor.enter{opacity:0}

/* —— 角色闲置动画 —— */
.sway{transform-box:view-box}
.ear{transform-box:view-box}
.rabbit .sway-a,.rabbit .ear-a{transform-origin:96px 54px}
.rabbit .sway-b,.rabbit .ear-b{transform-origin:122px 56px}
.dog .sway-a,.dog .ear-a{transform-origin:98px 74px}
.dog .sway-b,.dog .ear-b{transform-origin:126px 72px}
.bear .sway-a,.bear .ear-a{transform-origin:100px 50px}
.bear .sway-b,.bear .ear-b{transform-origin:148px 47px}

.sway{animation:sway 5.4s ease-in-out infinite;animation-delay:var(--delay,0s)}
@keyframes sway{0%,100%{transform:rotate(-1.9deg)}50%{transform:rotate(1.9deg)}}

.dog .tail{transform-box:view-box;transform-origin:45px 104px;animation:wag 1.6s ease-in-out infinite}
@keyframes wag{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(8deg)}}

.eyes{transform-box:fill-box;transform-origin:center;animation:blink 8.6s infinite}
.dog .eyes{animation-delay:-2.8s}
.bear .eyes{animation-delay:-5.4s}
@keyframes blink{0%,93.5%,100%{transform:scaleY(1)}96%{transform:scaleY(.08)}}

.bear .cr{animation:breathe 6.2s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:translateY(0)}50%{transform:translateY(-2.5px)}}

/* 草叶摇曳 */
.blade{transform-box:fill-box;transform-origin:50% 100%}
.blade-anim{animation:blade 6.4s ease-in-out infinite;animation-delay:var(--d,0s)}
@keyframes blade{0%,100%{transform:rotate(-2.6deg)}50%{transform:rotate(2.6deg)}}

/* 云 */
.cloud{transform-box:fill-box;transform-origin:50% 50%}
.cloud-a{animation:drift 116s linear infinite}
.cloud-b{animation:drift 158s linear infinite}
.cloud-c{animation:drift 196s linear infinite}
@keyframes drift{from{translate:-420px 0}to{translate:3560px 0}}

/* 篝火 */
.flame{transform-box:fill-box;transform-origin:50% 100%;animation:flicker 1.35s ease-in-out infinite}
@keyframes flicker{0%,100%{transform:scale(1,1) rotate(-1.2deg)}35%{transform:scale(.93,1.08) rotate(1.2deg)}70%{transform:scale(1.05,.95) rotate(-.8deg)}}
.fire-stones{transform-box:fill-box;transform-origin:50% 100%}

/* 萤火虫 */
.fly{opacity:0;animation:fly 5.4s ease-in-out infinite}
.fly-0{animation-delay:0s}.fly-1{animation-delay:-1.3s}.fly-2{animation-delay:-2.7s}.fly-3{animation-delay:-4s}
@keyframes fly{0%{opacity:0;translate:0 0}18%{opacity:.85}50%{translate:20px -28px;opacity:.6}82%{opacity:.8}100%{opacity:0;translate:-14px 16px}}

/* —— 文字层 —— */
#plates{position:absolute;inset:0;z-index:7;pointer-events:none}
.plate{position:absolute;opacity:0;translate:0 16px;transition:opacity .8s ease,translate .8s ease}
.plate.is-on{opacity:1;translate:0 0}

.plate-title{
  right:clamp(28px,7vw,120px); top:50%; translate:0 calc(-50% + 16px);
  text-align:right; max-width:min(42%,460px);
}
.plate-title.is-on{translate:0 -50%}
.plate-note{
  left:clamp(26px,6vw,110px); top:clamp(30px,8vh,84px); max-width:min(34%,380px);
}

.kicker{
  margin:0 0 16px;font-size:11.5px;letter-spacing:.42em;text-transform:uppercase;
  color:var(--ink-soft);font-style:italic;font-weight:400;
}
.plate h1{
  margin:0;font-size:clamp(38px,5.4vw,70px);font-weight:300;line-height:1.16;letter-spacing:.16em;
  color:var(--ink);
}
.plate h2{
  margin:0 0 14px;font-size:clamp(21px,2.4vw,29px);font-weight:400;letter-spacing:.16em;
  color:var(--ink);
}
.plate .lede{
  margin:26px 0 0;font-size:clamp(13.5px,1.2vw,16px);line-height:2.15;color:var(--ink-soft);
  letter-spacing:.06em;
}
.plate .body{
  margin:0;font-size:clamp(13.5px,1.2vw,16px);line-height:2.2;color:var(--ink-soft);letter-spacing:.05em;
  overflow-wrap:break-word;word-break:normal;
}
.plate .rule{display:block;width:52px;height:1px;background:currentColor;opacity:.32;margin:22px 0 0 auto}

.enter{
  display:inline-flex;align-items:center;gap:10px;margin-top:28px;
  padding:10px 20px;border:1px solid var(--accent);border-radius:999px;
  color:var(--accent);text-decoration:none;font-size:14px;letter-spacing:.18em;
  background:rgba(245,242,230,.42);
  transition:background .3s ease,color .3s ease,transform .3s ease;pointer-events:auto;
}
.enter span{transition:translate .3s ease}
.enter:hover{background:var(--accent);color:#f7f4e8}
.enter:hover span{translate:4px 0}
.enter:focus-visible{outline:2px solid var(--accent);outline-offset:4px}

/* 滚动提示：贴近原站的斜体衬线 + 手绘波浪线 */
#scroll-cue{
  position:absolute;left:50%;bottom:max(30px,env(safe-area-inset-bottom));translate:-50% 0;z-index:8;
  border:0;padding:8px 10px;background:transparent;color:#5c6b52;
  font:italic 19px/1 var(--serif);letter-spacing:.05em;
  text-decoration:underline;text-decoration-style:wavy;text-decoration-thickness:1px;text-underline-offset:8px;
  cursor:pointer;white-space:nowrap;transition:opacity .3s ease,color .3s ease;
}
#scroll-cue:hover{color:var(--accent)}
#scroll-cue span{display:inline-block;margin-left:8px;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{50%{translate:0 4px}}
#scroll-cue:focus-visible{outline:2px solid #5c6b52;outline-offset:5px;border-radius:4px}

/* 转场遮罩 */
#fade{position:absolute;inset:0;z-index:9;background:var(--paper);opacity:0;pointer-events:none;transition:opacity .5s ease}
body.leaving #fade{opacity:1}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.no-script{position:fixed;left:8%;top:20%;font-size:16px}

/* —— 子页面：小玩意 —— */
.things-page{
  min-height:100svh;overflow:auto;
  display:grid;place-items:center;padding:clamp(32px,7vw,90px);
  background:
    radial-gradient(88% 42% at 50% 110%, rgba(214,143,86,.26) 0%, rgba(214,143,86,0) 64%),
    linear-gradient(180deg,#5d6a56 0%,#6d7765 34%,#7b7e7b 70%,#686d77 100%);
  background-attachment:fixed;
}
.things-wrap{width:min(660px,100%);color:#e8e4d6}
.things-wrap .kicker{color:#a9b39f}
.things-wrap h1{
  margin:0 0 28px;font-size:clamp(30px,5vw,50px);font-weight:300;letter-spacing:.18em;color:#f1eee1;
}
.things-note{
  margin:0 0 40px;font-size:clamp(14px,1.5vw,17px);line-height:2.15;color:#c3c9b8;letter-spacing:.05em;
}
.things-list{list-style:none;margin:0 0 40px;padding:0;border-top:1px solid rgba(232,228,214,.16)}
.things-list li{
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:baseline;
  padding:24px 2px;border-bottom:1px solid rgba(232,228,214,.16);
}
.things-list .who{
  flex:0 0 auto;min-width:6.5em;font-size:13px;letter-spacing:.22em;color:#a6b09b;font-style:italic;
}
.things-list .what{font-size:clamp(16px,1.9vw,20px);line-height:1.75;color:#ece8da}
.things-page .enter{border-color:#a9b39f;color:#d9ddcd;background:rgba(255,255,255,.05)}
.things-page .enter:hover{background:#c9d0bd;color:#3d4437}

/* —— 竖屏 —— */
@media (max-aspect-ratio: 1/1){
  .plate-title,
  .plate-note{
    right:auto;left:0;right:0;width:auto;max-width:none;text-align:center;
    top:clamp(26px,6vh,68px);bottom:auto;padding:0 28px;
    translate:0 16px;
  }
  .plate-title.is-on{translate:0 0}
  .plate .rule{margin:20px auto 0}
  .plate .body,.plate .lede{line-height:2.05;font-size:14px}
  .plate h1{font-size:clamp(34px,10vw,52px)}
  #scroll-cue{font-size:17px}
}

@media (prefers-reduced-motion: reduce){
  .sway,.eyes,.dog .tail,.blade-anim,.cloud,.flame,.fly,.bear .cr{animation:none}
  #scroll-cue span{animation:none}
  .plate{transition:none}
}