/* ============================================================
   万杉 ONESVM — 浅色极简 · 苹果风
   米白底 / 近黑字 / 杉绿强调 / 发光探索
   ============================================================ */

:root{
  --bg:        #f7f7f5;
  --bg-soft:   #ffffff;
  --ink:       #1c1c1e;
  --ink-soft:  #6b6b70;
  --ink-faint: #a9a9ae;
  --line:      #e7e7e3;

  /* 杉绿（取自 Logo） */
  --green:      #2fa36b;
  --green-deep: #1e7a4d;
  --green-soft: #9fe3c1;
  --green-glow: rgba(47,163,107,.55);

  --radius: 20px;
  --shadow: 0 20px 60px rgba(28,28,30,.08);
  --ease: cubic-bezier(.22,.61,.36,1);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  cursor:default;
}
img{ display:block; max-width:100%; }
button{ font:inherit; background:none; border:none; cursor:pointer; color:inherit; }
a{ color:inherit; text-decoration:none; }

::selection{ background:var(--green-soft); color:var(--green-deep); }

/* ---------- 光标柔光 ---------- */
.cursor-glow{
  position:fixed; left:0; top:0; z-index:1; pointer-events:none;
  width:520px; height:520px; border-radius:50%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(47,163,107,.10) 0%, rgba(47,163,107,.045) 35%, transparent 65%);
  opacity:0; transition:opacity .6s var(--ease);
  mix-blend-mode:multiply;
}
body.has-cursor .cursor-glow{ opacity:1; }

/* ---------- 顶部进度 ---------- */
.progress{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px clamp(20px,5vw,56px);
  pointer-events:none;
  transition:background .4s, backdrop-filter .4s;
}
body.scrolled .progress{
  background:rgba(247,247,245,.7);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
}
.progress-logo{
  width:30px; height:30px; opacity:.9;
  filter:grayscale(.15);
  transition:filter .6s var(--ease), transform .6s var(--ease);
}
body.complete .progress-logo{ filter:none; transform:scale(1.12); }
.progress-dots{ list-style:none; display:flex; gap:clamp(12px,2.4vw,26px); }
.progress-dots li{
  display:flex; align-items:center; gap:8px;
  font-size:12px; letter-spacing:.12em; color:var(--ink-faint);
  transition:color .5s var(--ease);
}
.progress-dots li i{
  width:8px; height:8px; border-radius:50%;
  background:var(--ink-faint); opacity:.35;
  transition:all .5s var(--ease);
}
.progress-dots li.on{ color:var(--green-deep); }
.progress-dots li.on i{
  background:var(--green); opacity:1;
  box-shadow:0 0 0 4px rgba(47,163,107,.18), 0 0 14px var(--green-glow);
}
.progress-dots li span{ display:none; }
@media(min-width:760px){ .progress-dots li span{ display:inline; } }

/* ---------- 主画布 ---------- */
#forest{ position:relative; z-index:2; }

.stage{
  min-height:100vh;
  display:flex; flex-direction:column; justify-content:center;
  padding:16vh clamp(22px,7vw,96px);
  max-width:1200px; margin:0 auto;
}

/* 着陆页 */
.stage-landing{ position:relative; align-items:center; text-align:center; }
.landing-core{ position:relative; z-index:2; }
.hero-logo{ width:96px; height:96px; margin:0 auto 28px; filter:drop-shadow(0 8px 20px rgba(47,163,107,.25)); }
.brand{
  font-size:clamp(44px,8vw,84px); font-weight:700; letter-spacing:.04em;
  line-height:1.1;
}
.brand-en{
  display:block; margin-top:10px;
  font-size:clamp(16px,2.4vw,24px); font-weight:500; letter-spacing:.55em;
  color:var(--ink-soft); text-indent:.55em;
}
.tagline{
  margin-top:26px; font-size:clamp(15px,1.8vw,19px); color:var(--ink-soft);
  letter-spacing:.06em;
}
.hint{
  margin-top:56px; font-size:15px; color:var(--green-deep); letter-spacing:.1em;
  animation:hintPulse 3.2s var(--ease) infinite;
}
.hint-sub{ display:block; margin-top:6px; font-size:12.5px; color:var(--ink-faint); letter-spacing:.18em; }
@keyframes hintPulse{ 0%,100%{opacity:.55} 50%{opacity:1} }

/* 隐藏发光点：常驻视窗 */
.seeds{
  position:fixed; inset:0; z-index:40;
  pointer-events:none; /* 只让光点本身可点 */
}
.seed{
  position:absolute; left:var(--x); top:var(--y);
  width:56px; height:56px; margin:-28px 0 0 -28px;
  display:grid; place-items:center;
  pointer-events:auto;
  transition:left 3.2s cubic-bezier(.45,.05,.55,.95), top 3.2s cubic-bezier(.45,.05,.55,.95);
}
.seed i{
  width:10px; height:10px; border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 0 rgba(47,163,107,.35);
  opacity:.5;
  transition:transform .4s var(--ease), opacity .4s;
  animation:seedBreath 3.6s ease-in-out infinite;
}
.seed::before{
  content:""; position:absolute; inset:0; border-radius:50%;
  border:1px solid rgba(47,163,107,.35);
  opacity:0; transform:scale(.5);
  transition:all .5s var(--ease);
}
@keyframes seedBreath{
  0%,100%{ box-shadow:0 0 0 0 rgba(47,163,107,.30); }
  50%    { box-shadow:0 0 18px 4px rgba(47,163,107,.35); }
}
.seed:hover i, .seed:focus-visible i{ transform:scale(1.7); opacity:1; }
.seed:hover::before, .seed:focus-visible::before{ opacity:1; transform:scale(1); }
.seed:focus-visible{ outline:none; }
.seed.found i{
  animation:none; opacity:1; transform:scale(1.15);
  background:var(--green-deep);
  box-shadow:0 0 0 6px rgba(47,163,107,.16), 0 0 20px var(--green-glow);
}
.seed.found::after{
  content:"✓"; position:absolute; color:var(--green-deep);
  font-size:11px; font-weight:700; transform:translateY(-1px);
}

/* 第六个光点：默认隐藏，汇聚后浮现 */
.seed-values{
  opacity:0; pointer-events:none; z-index:2;
  transition:left 3.2s cubic-bezier(.45,.05,.55,.95),
             top 3.2s cubic-bezier(.45,.05,.55,.95),
             opacity .8s var(--ease);
}
.seed-values i{ opacity:0; transform:scale(.4); transition:all .8s var(--ease); }
.seeds.converged .seed-values{ opacity:1; pointer-events:auto; }
.seeds.converged .seed-values i{
  opacity:1; transform:scale(1.15);
  animation:seedBlink .18s ease-in-out 5, seedBreath 2.4s ease-in-out .9s infinite;
}

/* 汇聚闪烁：急促明暗 + 冲击波光环 */
@keyframes seedBlink{
  0%,100%{ box-shadow:0 0 14px 3px rgba(47,163,107,.40); filter:brightness(1); }
  50%    { box-shadow:0 0 38px 14px rgba(47,163,107,.80); filter:brightness(1.7); }
}
/* 五颗抵达中心时的碎闪 */
.seeds.converging .seed.core i{ animation:seedBlink .18s ease-in-out 1s 3; }
.converge-ring{
  position:absolute; width:14px; height:14px; margin:-7px 0 0 -7px;
  border-radius:50%; pointer-events:none; z-index:3;
  background:radial-gradient(circle, rgba(159,227,193,.95) 0%, rgba(47,163,107,.55) 45%, transparent 70%);
  box-shadow:0 0 30px 8px rgba(47,163,107,.45);
  animation:convergeFlash 1.15s var(--ease) forwards;
}
@keyframes convergeFlash{
  0%  { opacity:0; transform:scale(.2); }
  15% { opacity:1; }
  100%{ opacity:0; transform:scale(18); }
}

/* 爆炸后：第六颗彻底消失 */
.seed-values.gone{ opacity:0 !important; pointer-events:none !important; }

/* 炸开：化作满屏飞舞的光点 */
.spark{
  position:fixed; left:0; top:0; z-index:60; pointer-events:none;
  display:block;
  width:var(--s,8px); height:var(--s,8px); border-radius:50%;
  background:radial-gradient(circle, var(--green-soft) 0%, var(--green) 60%, transparent 100%);
  box-shadow:0 0 10px var(--green-glow);
  opacity:0;
  will-change:transform, opacity;
}
.sparks-go .spark{
  animation:sparkFly var(--d,3.4s) cubic-bezier(.12,.62,.28,1) var(--delay,0s) forwards;
}
@keyframes sparkFly{
  0%  { opacity:0; transform:translate(var(--ox),var(--oy)) scale(.3); }
  8%  { opacity:1; }
  70% { opacity:.9; }
  100%{ opacity:0; transform:translate(var(--fx),var(--fy)) scale(var(--fs,1)); }
}

/* 汇聚：五光点向中心收拢（位移用 left/top，缩放消失用 transform） */
.seed.core{
  transition:left 1s cubic-bezier(.5,0,.2,1), top 1s cubic-bezier(.5,0,.2,1),
             transform 1s cubic-bezier(.5,0,.2,1), opacity .8s var(--ease);
}
.seeds.converging .seed.core{ transform:scale(.7); opacity:.85; }
.seeds.converged .seed.core{ transform:scale(.3); opacity:.28; pointer-events:none; }
/* 第六颗浮现后，五颗彻底消失 */
.seeds.settled .seed.core{ transform:scale(0); opacity:0; }

/* 连线 */
.seed-links{ position:absolute; inset:0; width:100%; height:100%; z-index:1; transition:opacity .8s var(--ease); }
.seed-links line{
  stroke:var(--green); stroke-width:1; stroke-linecap:round;
  opacity:.4;
}
/* 汇聚完成后连线淡出，把舞台让给第六颗 */
.seeds.converged .seed-links{ opacity:0; }

/* ---------- 新手引导 ---------- */
.guide{
  position:absolute; top:var(--y,50%);
  left:clamp(110px, var(--x,50%), calc(100% - 110px));
  z-index:3;
  display:flex; align-items:center; gap:6px;
  padding:8px 8px 8px 16px;
  background:var(--bg-soft);
  border:1px solid rgba(47,163,107,.35);
  border-radius:999px;
  font-size:13px; letter-spacing:.05em; color:var(--green-deep); white-space:nowrap;
  box-shadow:0 12px 32px rgba(28,28,30,.12), 0 0 0 4px rgba(47,163,107,.08);
  pointer-events:auto;
  opacity:0; transition:opacity .45s var(--ease);
  animation:guideFloat 2.4s ease-in-out infinite;
}
.guide[hidden]{ display:none; }
.guide.show{ opacity:1; }
/* 指向光点的小三角 */
.guide::after{
  content:""; position:absolute; left:50%; bottom:-7px;
  width:12px; height:12px; transform:translateX(-50%) rotate(45deg);
  background:var(--bg-soft);
  border-right:1px solid rgba(47,163,107,.35);
  border-bottom:1px solid rgba(47,163,107,.35);
}
@keyframes guideFloat{
  0%,100%{ transform:translate(-50%, calc(-100% - 24px)); }
  50%    { transform:translate(-50%, calc(-100% - 32px)); }
}
.guide-close{
  width:22px; height:22px; border-radius:50%;
  display:grid; place-items:center;
  font-size:13px; line-height:1; color:var(--ink-faint);
  transition:all .3s;
}
.guide-close:hover{ background:rgba(47,163,107,.12); color:var(--green-deep); }

/* 引导指向的光点：涟漪圈 */
.seed.beacon::before{
  opacity:1; transform:scale(.6);
  animation:beaconRing 1.6s ease-out infinite;
}
@keyframes beaconRing{
  0%  { transform:scale(.6); opacity:.9; }
  100%{ transform:scale(2);   opacity:0; }
}

/* ---------- 揭示段落 ---------- */
.reveal{ display:none; opacity:0; transform:translateY(48px); transition:opacity 1s var(--ease), transform 1s var(--ease); pointer-events:none; }
.reveal.unlocked{ display:flex; opacity:1; transform:none; pointer-events:auto; }

.kicker{
  font-size:13px; letter-spacing:.32em; color:var(--green-deep);
  text-transform:uppercase; margin-bottom:22px; font-weight:600;
}
.headline{
  font-size:clamp(32px,5.4vw,60px); font-weight:700; line-height:1.16;
  letter-spacing:.01em; margin-bottom:26px;
}
.headline b{
  font-weight:700; color:var(--green-deep);
  background:linear-gradient(120deg, var(--green-deep), var(--green));
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
.lede{
  font-size:clamp(16px,2vw,20px); color:var(--ink-soft);
  max-width:34em; margin-bottom:54px;
}

.cards{
  display:grid; gap:20px;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.card{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 28px;
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset;
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow);
  border-color:rgba(47,163,107,.4);
}
.card h3{
  font-size:18px; font-weight:600; letter-spacing:.02em; margin-bottom:12px;
  display:flex; align-items:center; gap:10px;
}
.card h3::before{
  content:""; width:7px; height:7px; border-radius:50%;
  background:var(--green); box-shadow:0 0 10px var(--green-glow);
  flex:none;
}
.card p{ font-size:14.5px; color:var(--ink-soft); }

/* ---------- 核心价值观（藏最深） ---------- */
.stage-values{ text-align:center; align-items:center; }
.values-hint{ color:var(--ink-soft); font-size:15px; margin-bottom:44px; }
.values-hint span{ color:var(--ink-faint); font-size:13px; letter-spacing:.1em; }

.values-grid{
  display:grid; gap:18px; width:100%;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  max-width:900px;
}
.value{
  position:relative;
  background:var(--bg-soft); border:1px solid var(--line);
  border-radius:var(--radius); padding:34px 20px 30px;
  display:flex; flex-direction:column; align-items:center; gap:6px;
  overflow:hidden;
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s;
}
.value-en{
  font-size:22px; font-weight:700; letter-spacing:.04em; color:var(--ink-faint);
  filter:blur(1.5px); opacity:.5;
  transition:all .6s var(--ease);
}
.value-zh{
  font-size:15px; letter-spacing:.5em; text-indent:.5em; color:var(--ink-faint);
  opacity:.4; transition:all .6s var(--ease);
}
.value-line{
  margin-top:12px; font-size:12.5px; color:var(--ink-soft);
  max-height:0; opacity:0; overflow:hidden;
  transition:all .6s var(--ease);
}
.value:hover{ transform:translateY(-4px); border-color:rgba(47,163,107,.4); }
.value.lit{
  border-color:var(--green); box-shadow:0 0 0 1px var(--green-soft), 0 18px 40px rgba(47,163,107,.16);
  transform:translateY(-6px);
}
.value.lit .value-en{
  filter:none; opacity:1;
  background:linear-gradient(120deg,var(--green-deep),var(--green));
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
.value.lit .value-zh{ opacity:1; color:var(--green-deep); }
.value.lit .value-line{ max-height:3em; opacity:1; }

.values-done{
  margin-top:40px; font-size:16px; letter-spacing:.12em; color:var(--green-deep);
  opacity:0; transform:translateY(12px);
  transition:all .8s var(--ease);
}
.values-done.show{ opacity:1; transform:none; }

/* ---------- 页脚 ---------- */
.footer{
  position:relative; z-index:2;
  border-top:1px solid var(--line);
  background:var(--bg-soft);
}
.footer-inner{
  max-width:1200px; margin:0 auto;
  padding:56px clamp(22px,7vw,96px) 40px;
  display:flex; flex-direction:column; gap:26px;
}
.footer-brand{ display:flex; align-items:center; gap:12px; font-weight:600; letter-spacing:.06em; }
.footer-brand img{ width:26px; height:26px; }
.footer-links{ display:flex; flex-wrap:wrap; gap:14px 34px; }
.footer-links a{
  font-size:15px; font-weight:500; color:var(--ink);
  display:flex; align-items:baseline; gap:8px;
  transition:color .3s;
}
.footer-links a em{ font-style:normal; color:var(--ink-faint); font-size:13.5px; transition:color .3s; }
.footer-links a:hover{ color:var(--green-deep); }
.footer-links a:hover em{ color:var(--green); }
.footer-legal{ display:flex; flex-wrap:wrap; gap:8px 24px; font-size:12.5px; color:var(--ink-faint); }
.footer-legal a:hover{ color:var(--green-deep); }
.beian-police{ display:inline-flex; align-items:center; gap:6px; color:var(--ink-faint); }
.beian-police img{ width:14px; height:14px; }
.footer-copy{ font-size:12px; color:var(--ink-faint); letter-spacing:.08em; }

/* ---------- 响应式 ---------- */
@media(max-width:640px){
  .seed{ width:64px; height:64px; margin:-32px 0 0 -32px; }
  .stage{ padding-top:20vh; padding-bottom:20vh; }
}

/* ---------- 动效降级 ---------- */
@media(prefers-reduced-motion:reduce){
  *{ animation:none !important; transition-duration:.01ms !important; }
  html{ scroll-behavior:auto; }
  .cursor-glow{ display:none; }
}