/* ============================================================
   奶蛙师范学院.com — 天津师范大学奶蛙中转站
   ============================================================ */

:root{
  --ink: #13283a;
  --ink-2: #27495c;
  --body: #4a6875;
  --muted: #5f7d88;
  --muted-2: #8aa3ab;
  --line: #d9e9e2;
  --line-2: #c9dfd6;
  --bg: #e9f7ef;
  --cream: #fffcf3;
  --mint: #f2fbf6;
  --white: #ffffff;
  --coral: #ef6f52;
  --coral-2: #ff8d72;
  --red: #c01f27;
  --red-deep: #9a1119;
  --radius: 22px;
  --wrap: 1200px;
  --shadow-s: 0 1px 2px rgba(19,40,58,.04), 0 14px 30px -22px rgba(19,40,58,.28);
  --shadow-m: 0 2px 6px rgba(19,40,58,.04), 0 34px 60px -40px rgba(19,40,58,.4);
  --font: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

*,*::before,*::after{ box-sizing: border-box; }

html{
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  color-scheme: light;
}

body{
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  background:
    radial-gradient(1100px 620px at 84% -8%, #fdf4ea 0%, rgba(253,244,234,0) 62%),
    radial-gradient(900px 520px at 2% 4%, #f4fcf7 0%, rgba(244,252,247,0) 58%),
    linear-gradient(180deg, #e9f7ef 0%, #edf8f2 34%, #f3faf6 72%, #eaf6ef 100%);
  background-attachment: fixed;
}

img{ display: block; max-width: 100%; height: auto; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1,h2,h3,p,ul,dl,dd,figure,blockquote{ margin: 0; }
ul{ padding: 0; list-style: none; }

svg{ width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }

::selection{ background: #ffd9cd; color: var(--ink); }

:focus-visible{
  outline: 3px solid rgba(239,111,82,.55);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link{
  position: fixed;
  top: -80px; left: 20px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  font-size: 14px;
  transition: top .2s ease;
}
.skip-link:focus{ top: 14px; }

.wrap{
  width: min(var(--wrap), calc(100% - 48px));
  margin-inline: auto;
}

.tld{ color: var(--coral); font-weight: 800; }

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 54px;
  padding: 0 26px;
  border-radius: 16px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: transform .28s cubic-bezier(.2,.7,.3,1), box-shadow .28s ease, background-color .28s ease, border-color .28s ease, color .28s ease;
}
.btn svg{ width: 17px; height: 17px; stroke-width: 2.2; }

.btn-red{
  background: linear-gradient(180deg, #cb2730 0%, #b21922 100%);
  color: #fff;
  box-shadow: 0 18px 32px -20px rgba(178,25,34,.9), inset 0 1px 0 rgba(255,255,255,.22);
}
.btn-red:hover{
  transform: translateY(-2px);
  box-shadow: 0 24px 40px -22px rgba(178,25,34,.95), inset 0 1px 0 rgba(255,255,255,.22);
}

.btn-ghost{
  background: rgba(255,255,255,.62);
  border: 1px solid var(--line-2);
  color: var(--ink);
  box-shadow: 0 10px 24px -22px rgba(19,40,58,.5);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover{ background: #fff; border-color: #b9d8cb; transform: translateY(-2px); }

.btn-sm{ height: 44px; padding: 0 18px; font-size: 14px; border-radius: 13px; }
.btn-sm svg{ width: 15px; height: 15px; }

.btn-light{
  margin-top: 30px;
  height: 50px;
  background: rgba(255,255,255,.13);
  border: 1px solid rgba(255,255,255,.28);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-light:hover{ background: rgba(255,255,255,.22); transform: translateY(-2px); }

/* ---------- header ---------- */
.site-head{
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(237,248,242,.72);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px) saturate(1.1);
  transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-head.is-stuck{
  background: rgba(247,252,249,.9);
  border-bottom-color: rgba(19,40,58,.07);
  box-shadow: 0 18px 40px -38px rgba(19,40,58,.6);
}

.head-inner{
  display: flex;
  align-items: center;
  gap: 26px;
  height: 78px;
}

.brand{ display: flex; align-items: center; gap: 12px; }
.brand-mark{
  width: 40px; height: 40px;
  border-radius: 50%;
  box-shadow: 0 8px 18px -12px rgba(19,40,58,.75);
}
.brand-text strong{
  display: block;
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.3;
}
.brand-text small{
  display: block;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .04em;
  line-height: 1.5;
}

.nav{ display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav a{
  padding: 9px 14px;
  border-radius: 11px;
  font-size: 14.5px;
  font-weight: 600;
  color: #3f6070;
  transition: background-color .2s ease, color .2s ease;
}
.nav a:hover{ background: rgba(255,255,255,.8); color: var(--ink); }

.head-actions{ display: flex; align-items: center; gap: 10px; }

.nav-toggle{
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,.72);
}
.nav-toggle svg{ width: 20px; height: 20px; }

/* ---------- hero ---------- */
.hero{ position: relative; }

.hero-grid{
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 26px;
  align-items: center;
  padding: 54px 0 84px;
}

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 15px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(19,40,58,.07);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .04em;
  color: #476655;
  box-shadow: 0 8px 20px -18px rgba(19,40,58,.6);
}
.pulse{
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #35a06a;
  box-shadow: 0 0 0 0 rgba(53,160,106,.55);
  animation: pulse 2.6s ease-out infinite;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(53,160,106,.5); }
  60%{ box-shadow: 0 0 0 7px rgba(53,160,106,0); }
  100%{ box-shadow: 0 0 0 0 rgba(53,160,106,0); }
}

.hero h1{
  margin: 22px 0 0;
  font-size: clamp(40px, 4.35vw, 63px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -.028em;
}
.hero h1 .tld{ font-size: .56em; letter-spacing: -.01em; }

.hero-sub{
  margin-top: 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: .02em;
}
.hero-sub span{
  display: inline-block;
  margin-left: 10px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .17em;
  color: var(--muted-2);
}

.hero-cta{ display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero-meta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 26px;
  font-size: 13px;
  color: #62808a;
}
.hero-meta li{ display: inline-flex; align-items: center; }
.hero-meta li:not(:last-child)::after{
  content: "·";
  margin-left: 14px;
  color: #b3cdc0;
}
.hero-meta b{ color: var(--ink); font-weight: 800; font-variant-numeric: tabular-nums; }

.domain-chip{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  padding: 10px 16px 10px 14px;
  border-radius: 14px;
  border: 1px dashed rgba(19,40,58,.2);
  background: rgba(255,255,255,.55);
  color: #40606c;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .01em;
  transition: background-color .25s ease, border-color .25s ease, color .25s ease;
}
.domain-chip > svg{ width: 17px; height: 17px; color: var(--coral); }
.domain-chip:hover{ background: #fff; border-color: rgba(239,111,82,.55); }
.domain-hint{
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 4px;
  padding-left: 10px;
  border-left: 1px solid rgba(19,40,58,.12);
  color: var(--muted-2);
  font-size: 12px;
  font-weight: 500;
}
.domain-hint svg{ width: 13px; height: 13px; }
.domain-chip.is-copied{ border-style: solid; border-color: rgba(53,160,106,.5); color: #22724b; }
.domain-chip.is-copied .domain-hint{ color: #22724b; }

/* hero art */
.hero-art{
  position: relative;
  display: grid;
  place-items: center;
  min-height: 620px;
  isolation: isolate;
}

.art-glow{
  position: absolute;
  inset: 0;
  margin: auto;
  width: min(560px, 96%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 42%, #fff 0%, rgba(255,255,255,.9) 36%, rgba(255,255,255,0) 66%);
  z-index: 0;
}
.art-ring{
  position: absolute;
  inset: 0;
  margin: auto;
  width: min(520px, 90%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px dashed rgba(19,40,58,.16);
  z-index: 0;
}
.art-ring::after{
  content: "";
  position: absolute;
  inset: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.7);
}

.frog-shadow{
  position: absolute;
  bottom: 34px;
  width: 250px;
  height: 30px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(150,20,25,.28) 0%, rgba(150,20,25,0) 72%);
  filter: blur(4px);
  z-index: 1;
}

.frog{
  position: relative;
  z-index: 2;
  height: clamp(400px, 47vw, 585px);
  width: auto;
  filter: drop-shadow(0 40px 44px rgba(140,18,24,.18));
  transform: translateX(5%);
  transition: transform .5s cubic-bezier(.2,.7,.3,1);
  cursor: pointer;
}
.frog:hover{ transform: translateX(5%) translateY(-6px); }
.frog.boing{ animation: boing .55s cubic-bezier(.2,.8,.3,1); }
@keyframes boing{
  0%{ transform: translateX(5%) scale(1); }
  35%{ transform: translateX(5%) scale(1.035, .955); }
  65%{ transform: translateX(5%) scale(.98, 1.03); }
  100%{ transform: translateX(5%) scale(1); }
}

.bubble{
  position: absolute;
  top: 1.5%;
  left: 7%;
  z-index: 4;
  padding: 12px 18px;
  border-radius: 16px 16px 4px 16px;
  background: #fff;
  box-shadow: 0 22px 40px -30px rgba(19,40,58,.6);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  white-space: nowrap;
  transform-origin: 80% 100%;
  transition: transform .3s cubic-bezier(.2,.7,.3,1);
}
.bubble-tail{
  position: absolute;
  right: 16px;
  bottom: -6px;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: #fff;
  transform: rotate(45deg);
  box-shadow: 6px 7px 12px -9px rgba(19,40,58,.7);
}
.bubble.pop{ animation: bubblePop .45s cubic-bezier(.2,.8,.3,1); }
@keyframes bubblePop{
  0%{ transform: scale(.88); }
  60%{ transform: scale(1.03); }
  100%{ transform: scale(1); }
}

.chip{
  position: absolute;
  z-index: 3;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(19,40,58,.06);
  border-radius: 16px;
  box-shadow: 0 26px 48px -34px rgba(19,40,58,.6);
  backdrop-filter: blur(8px);
}
.chip-school{
  top: 13%;
  right: -1%;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 16px 10px 10px;
  animation: float 9s ease-in-out infinite;
}
.chip-school img{ width: 44px; height: 44px; border-radius: 50%; }
.chip-school strong{ display: block; font-size: 13px; font-weight: 800; letter-spacing: .01em; }
.chip-school small{ display: block; font-size: 8.5px; letter-spacing: .11em; color: var(--muted-2); margin-top: 2px; }

.chip-motto{
  bottom: 11%;
  left: -3%;
  padding: 12px 18px;
  animation: float 10s ease-in-out infinite .8s;
}
.chip-motto small{
  display: block;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--coral);
  margin-bottom: 3px;
}
.chip-motto strong{ font-size: 13.5px; letter-spacing: .02em; }

.chip-est{
  bottom: 30%;
  right: 2%;
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 8px 13px;
  border-radius: 999px;
  background: linear-gradient(180deg, #cb2730, #a81320);
  color: #fff;
  border: 0;
  transform: rotate(-7deg);
  box-shadow: 0 18px 30px -22px rgba(160,20,28,.9);
  animation: float 8s ease-in-out infinite .4s;
}
.chip-est b{ font-size: 14px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.chip-est small{ font-size: 8.5px; letter-spacing: .14em; opacity: .75; }

@keyframes float{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-7px); }
}
.chip-est{ animation-name: floatEst; }
@keyframes floatEst{
  0%,100%{ transform: rotate(-7deg) translateY(0); }
  50%{ transform: rotate(-7deg) translateY(-6px); }
}

/* ---------- sections ---------- */
.section{ padding: clamp(58px, 7vw, 96px) 0; }

.kicker{
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--coral);
}
.kicker.light{ color: rgba(255,255,255,.72); }

.sec-head{ max-width: 700px; }
.sec-head h2{ margin-top: 12px; font-size: clamp(28px, 3.1vw, 40px); font-weight: 800; letter-spacing: -.02em; line-height: 1.25; }

/* ---------- cards ---------- */
.cards{ padding-top: clamp(30px, 4vw, 48px); }

.card-grid{
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  margin-top: 40px;
}

.card{
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 20px 20px 18px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  background: var(--cream);
  box-shadow: var(--shadow-s);
  transition: transform .4s cubic-bezier(.2,.7,.3,1), box-shadow .4s ease, border-color .4s ease;
}
.card--mint{ background: var(--mint); }
.card--white{ background: #fff; }

.card--main{
  border: 3px solid #f4795e;
  box-shadow: 0 0 0 7px rgba(244,121,94,.07), 0 30px 54px -38px rgba(160,40,30,.55);
  padding: 19px 19px 17px;
}

.card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-m);
  border-color: rgba(239,111,82,.5);
}
.card--main:hover{ border-color: #ef6f52; box-shadow: 0 0 0 7px rgba(244,121,94,.1), 0 40px 60px -40px rgba(160,40,30,.6); }

.card-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .02em;
}
.place{ color: #5f8290; font-weight: 500; }
.flag{
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--coral);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .04em;
  white-space: nowrap;
}
.flag svg{ width: 13px; height: 13px; stroke-width: 1.8; }
.flag-soft{ color: #de6a4c; font-weight: 600; font-size: 12px; }

.card-avatar{
  width: 172px;
  height: 172px;
  margin: 18px auto 14px;
  border-radius: 50%;
  position: relative;
}
.card-avatar::after{
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.6);
  pointer-events: none;
}
.card-avatar img{
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 18px 34px -20px rgba(19,40,58,.45);
  transition: transform .45s cubic-bezier(.2,.7,.3,1);
}
.card:hover .card-avatar img{ transform: scale(1.035) rotate(-1deg); }

.card-title{
  font-size: 20.5px;
  font-weight: 800;
  letter-spacing: -.02em;
  text-align: center;
  line-height: 1.35;
  color: var(--ink);
}
.card-title .tld{ font-size: .9em; }

.card-sub{
  margin-top: 5px;
  text-align: center;
  font-size: 13px;
  color: #5f7c88;
  letter-spacing: .01em;
}

.card-foot{ margin-top: auto; padding-top: 20px; }

.card-btn{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 46px;
  border-radius: 12px;
  background: #fcfffd;
  border: 1px solid #d5e7dd;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: background-color .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
}
.card-btn svg{ width: 15px; height: 15px; transition: transform .25s ease; }
.card-btn:hover{
  background: #fff;
  border-color: rgba(239,111,82,.7);
  color: #b91f28;
  box-shadow: 0 12px 24px -20px rgba(185,31,40,.7);
}
.card-btn:hover svg{ transform: translateX(3px); }

.card-host{
  margin-top: 9px;
  text-align: center;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .01em;
  color: #82989d;
}

.cards-note{
  margin-top: 26px;
  text-align: center;
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: .02em;
}

/* ---------- motto ---------- */
.motto-section{ padding: clamp(26px, 4vw, 44px) 0; }

.motto-panel{
  position: relative;
  overflow: hidden;
  border-radius: clamp(24px, 3vw, 36px);
  padding: clamp(36px, 5.4vw, 68px);
  color: #fff;
  background:
    radial-gradient(680px 340px at 88% 6%, rgba(255,255,255,.16), rgba(255,255,255,0) 62%),
    radial-gradient(520px 420px at 4% 100%, rgba(255,150,120,.18), rgba(255,150,120,0) 60%),
    linear-gradient(126deg, #a11019 0%, #c01f27 46%, #8d0c14 100%);
  box-shadow: 0 50px 90px -60px rgba(120,10,18,.9), inset 0 1px 0 rgba(255,255,255,.12);
}
.motto-panel::after{
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .2;
  mask-image: linear-gradient(100deg, #000 0%, transparent 55%);
  pointer-events: none;
}
.motto-emblem{
  position: absolute;
  right: -110px;
  top: 50%;
  translate: 0 -50%;
  width: clamp(260px, 30vw, 410px);
  opacity: .085;
  pointer-events: none;
}
.motto-panel h2{
  position: relative;
  margin-top: 16px;
  font-size: clamp(30px, 4.1vw, 54px);
  font-weight: 800;
  letter-spacing: .09em;
  line-height: 1.3;
  text-indent: .09em;
}
.motto-quote{
  position: relative;
  margin-top: 18px;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 17px;
  letter-spacing: .04em;
  color: rgba(255,255,255,.86);
}
.motto-cite{
  position: relative;
  margin-top: 4px;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(255,255,255,.5);
}

/* ---------- about ---------- */
.about .kicker{ margin-bottom: clamp(18px, 2.4vw, 26px); }

.about-top{
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(0, .58fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
}

.quote{
  margin-top: 0;
  max-width: 720px;
  padding: 18px 22px;
  border-left: 3px solid var(--coral);
  border-radius: 0 14px 14px 0;
  background: rgba(255,255,255,.55);
  box-shadow: 0 20px 40px -40px rgba(19,40,58,.6);
}
.quote p{
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-size: 15.5px;
  letter-spacing: .02em;
  color: var(--ink-2);
}
.quote cite{
  display: block;
  margin-top: 8px;
  font-size: 11.5px;
  font-style: normal;
  letter-spacing: .04em;
  color: var(--muted-2);
}

.promise{
  display: grid;
  gap: 12px;
  margin-top: 0;
}
.promise li{
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: #41606c;
}
.promise span{
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--coral);
  letter-spacing: .04em;
}

.about-cards{
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 18px;
  margin-top: clamp(22px, 3vw, 30px);
  align-items: start;
}

.profile{
  padding: 24px 26px;
  border-radius: 24px;
  background: var(--cream);
  box-shadow: var(--shadow-s);
}
.profile h3, .facts h3{
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}
.profile dl{ margin-top: 8px; }
.profile dl > div{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(19,40,58,.09);
  font-size: 13px;
}
.profile dl > div:last-child{ border-bottom: 0; padding-bottom: 2px; }
.profile dt{ color: var(--muted); flex: none; }
.profile dd{ color: var(--ink); font-weight: 600; text-align: right; }

.facts{
  padding: 24px 26px;
  border-radius: 24px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(19,40,58,.06);
  box-shadow: var(--shadow-s);
}
.fact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}
.fact{
  padding: 14px 15px;
  border-radius: 16px;
  background: #f8fcfa;
  border: 1px solid rgba(19,40,58,.05);
}
.fact b{
  display: block;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--red);
  font-variant-numeric: tabular-nums;
}
.fact b small{ font-size: 12px; font-weight: 700; margin-left: 2px; color: #b8443f; }
.fact span{ display: block; margin-top: 4px; font-size: 11.5px; line-height: 1.6; color: var(--muted); }

/* ---------- footer ---------- */
.site-foot{
  padding: 64px 0 26px;
  border-top: 1px solid rgba(19,40,58,.07);
  background: linear-gradient(180deg, rgba(243,251,246,.4) 0%, #e6f5ec 100%);
}
.foot-grid{
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr;
  gap: 36px;
}
.foot-brand img{
  width: 56px; height: 56px;
  border-radius: 50%;
  box-shadow: 0 14px 26px -20px rgba(19,40,58,.7);
}
.foot-name{
  margin-top: 14px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.02em;
}
.foot-tag{ margin-top: 6px; font-size: 12.5px; color: var(--muted); }

.foot-nav h3{
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  color: #6d8b96;
  text-transform: uppercase;
}
.foot-nav a{
  display: block;
  padding: 6px 0;
  font-size: 13.5px;
  color: #3f606e;
  transition: color .2s ease;
}
.foot-nav a:hover{ color: var(--red); }
.foot-nav h3 + a{ margin-top: 10px; }

.disclaimer{
  margin-top: 44px;
  max-width: 940px;
  font-size: 11.5px;
  line-height: 1.95;
  color: #6f8b94;
}

.foot-bar{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(19,40,58,.07);
  font-size: 11.5px;
  color: #8ba3ab;
}

/* ---------- auto jump ---------- */
.auto-jump{
  position: fixed;
  left: 50%;
  bottom: 22px;
  z-index: 95;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px 15px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,.95);
  border: 1px solid rgba(19,40,58,.08);
  box-shadow: 0 26px 54px -30px rgba(19,40,58,.6);
  backdrop-filter: blur(12px);
  transform: translate(-50%, 14px);
  opacity: 0;
  transition: opacity .32s ease, transform .32s cubic-bezier(.2,.7,.3,1);
  overflow: hidden;
}
.auto-jump[hidden]{ display: none; }
.auto-jump.is-on{ opacity: 1; transform: translate(-50%, 0); }

.auto-jump-dot{
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 0 rgba(239,111,82,.55);
  animation: pulse 2.4s ease-out infinite;
}

.auto-jump-text{
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  white-space: nowrap;
}
.auto-jump-text b{
  font-weight: 800;
  color: var(--red);
  font-variant-numeric: tabular-nums;
}

.auto-jump-stay{
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: #f7fcf9;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-2);
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.auto-jump-stay:hover{
  border-color: rgba(239,111,82,.6);
  color: #b91f28;
  background: #fff;
}

.auto-jump-bar{
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(19,40,58,.06);
}
.auto-jump-bar span{
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--coral-2), var(--red));
  transition: width .12s linear;
}

/* ---------- toast ---------- */
.toast{
  position: fixed;
  left: 50%;
  bottom: 96px;
  z-index: 120;
  padding: 12px 22px;
  border-radius: 14px;
  background: rgba(19,40,58,.95);
  color: #fff;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .02em;
  box-shadow: 0 26px 50px -26px rgba(19,40,58,.9);
  opacity: 0;
  transform: translate(-50%, 14px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s cubic-bezier(.2,.7,.3,1);
}
.toast.is-on{ opacity: 1; transform: translate(-50%, 0); }

/* ---------- reveal ---------- */
.js .reveal{ opacity: 0; transform: translateY(22px); }
.js .reveal.is-in{
  opacity: 1;
  transform: none;
  transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.25,1);
  transition-delay: var(--delay, 0ms);
}
.js .card-grid .reveal:nth-child(1){ --delay: 0ms; }
.js .card-grid .reveal:nth-child(2){ --delay: 60ms; }
.js .card-grid .reveal:nth-child(3){ --delay: 120ms; }
.js .card-grid .reveal:nth-child(4){ --delay: 180ms; }
.js .card-grid .reveal:nth-child(5){ --delay: 60ms; }
.js .card-grid .reveal:nth-child(6){ --delay: 120ms; }
.js .card-grid .reveal:nth-child(7){ --delay: 180ms; }
.js .card-grid .reveal:nth-child(8){ --delay: 240ms; }

/* ---------- responsive ---------- */
@media (max-width: 1120px){
  .hero h1{ font-size: clamp(38px, 5vw, 56px); }
  .hero-art{ min-height: 560px; }
  .chip-motto{ left: -1%; }
  .card-title{ font-size: 18.5px; }
}

@media (max-width: 1020px){
  .card-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-art{ width: min(620px, 100%); margin-inline: auto; min-height: 600px; }
  .frog{ height: clamp(380px, 56vw, 540px); }
  .art-ring{ width: min(470px, 92%); }
  .art-glow{ width: min(520px, 100%); }
  .bubble{ left: 16%; }
  .hero-grid{ grid-template-columns: 1fr; gap: 10px; padding-top: 36px; }
  .hero-copy{ max-width: 640px; }
  .hero-art{ min-height: 540px; margin-top: 8px; }
  .about-top{ grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 900px){
  .wrap{ width: calc(100% - 40px); }
  .nav{
    position: fixed;
    top: 86px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 10px;
    border-radius: 18px;
    background: rgba(255,255,255,.97);
    border: 1px solid rgba(19,40,58,.06);
    box-shadow: 0 34px 60px -34px rgba(19,40,58,.6);
    backdrop-filter: blur(14px);
  }
  .nav.is-open{ display: flex; }
  .nav a{ padding: 12px 14px; border-radius: 12px; font-size: 15px; }
  .nav-toggle{ display: inline-flex; }
  .head-inner{ height: 72px; gap: 12px; }
  .brand-text small{ display: none; }
  .site-head .btn-sm span{ display: none; }
  .brand{ margin-right: auto; }
  .brand-text strong{ font-size: 15.5px; }
  .site-head .btn-sm{ height: 42px; padding: 0 14px; font-size: 13px; }
  .foot-grid{ grid-template-columns: 1fr 1fr; }
  .foot-brand{ grid-column: 1 / -1; }
}

@media (max-width: 720px){
  .hero h1{ font-size: clamp(34px, 8.4vw, 46px); }
  .hero h1 .tld{ font-size: .5em; }
  .hero-sub span{ display: block; margin: 4px 0 0; }
  .hero-art{ min-height: 480px; }
  .frog{ height: clamp(330px, 74vw, 430px); }
  .frog-shadow{ bottom: 20px; width: 200px; }
  .bubble{ top: 0; left: 0; font-size: 12.5px; padding: 10px 14px; }
  .chip-school{ top: 3%; right: 0; padding: 8px 12px 8px 8px; gap: 8px; }
  .chip-school img{ width: 34px; height: 34px; }
  .chip-school strong{ font-size: 11.5px; }
  .chip-school small{ display: none; }
  .chip-motto, .chip-est{ display: none; }
  .motto-panel h2{ font-size: clamp(26px, 7.2vw, 34px); letter-spacing: .04em; text-indent: .04em; text-wrap: balance; }
  .about-cards{ grid-template-columns: 1fr; }
  .fact-grid{ grid-template-columns: 1fr 1fr; }
  .card-avatar{ width: 150px; height: 150px; }
  .card-title{ font-size: 19px; }
}

@media (max-width: 600px){
  .wrap{ width: calc(100% - 32px); }
  .auto-jump{
    left: 12px;
    right: 12px;
    bottom: 12px;
    gap: 10px;
    padding: 11px 12px 14px 14px;
    transform: translateY(14px);
  }
  .auto-jump.is-on{ transform: translateY(0); }
  .auto-jump-text{ font-size: 12px; white-space: normal; line-height: 1.45; }
  .auto-jump-stay{ padding: 7px 10px; font-size: 12px; flex: none; }
  .toast{ bottom: 104px; }
  .card-grid{ grid-template-columns: minmax(0, 1fr); max-width: 380px; margin-inline: auto; gap: 18px; }
  .card-avatar{ width: 160px; height: 160px; }
  .hero-meta{ font-size: 12px; gap: 6px 12px; }
  .hero-meta li{ gap: 12px; }
  .domain-chip{ font-size: 12px; }
  .domain-hint{ display: none; }
  .btn{ height: 50px; padding: 0 20px; font-size: 14.5px; }
  .hero-cta{ gap: 10px; }
  .motto-panel{ border-radius: 24px; }
  .profile, .facts{ padding: 20px 20px; }
  .foot-bar{ flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px){
  .site-head .btn-sm{ display: none; }
  .hero-meta{
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    font-size: 12.5px;
  }
  .hero-meta li:not(:last-child)::after{ content: none; }
}

@media (max-width: 420px){
  .hero-art{ min-height: 430px; }
  .frog{ height: clamp(300px, 76vw, 380px); }
  .hero h1{ font-size: 34px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js .reveal{ opacity: 1; transform: none; }
}