:root{
  --mint:#b4fde1;
  --blue:#add8e6;
  --ink:#172620;
  --ink-2:#31503f;
  --paper:#f2fdf8;
  --card:#ffffff;
  --r-card:10px;
  --r-bub:24px;
  --soft:inset -3px -3px 9px rgba(23,38,32,.12), 5px 5px 12px rgba(23,38,32,.15);
  --soft-sm:inset -2px -2px 5px rgba(23,38,32,.10), 3px 3px 7px rgba(23,38,32,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Raleway',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(1100px 560px at 8% -12%, #d7fff0 0%, rgba(215,255,240,0) 62%),
    radial-gradient(820px 480px at 102% 2%, #d6ecf7 0%, rgba(214,236,247,0) 58%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
h1,h2,h3,.brand,.cta-title{font-family:'Lora',Georgia,'Songti SC',serif}
img{max-width:100%;height:auto;display:block}

.vh{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;z-index:100;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:3px solid var(--ink);border-radius:999px;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;transition:top .2s ease-out}
.skip:focus{top:12px}

/* ---------- 底部固定条 ---------- */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;align-items:center;gap:8px;
  padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px));
  background:linear-gradient(180deg,#cbfbe7,#a9f0d6);
  border-top:4px solid var(--ink);
  box-shadow:0 -8px 18px rgba(23,38,32,.13);
}
.brand{
  flex:0 1 auto;min-width:0;max-width:44%;
  display:inline-flex;align-items:center;min-height:44px;padding:0 13px;
  border:3px solid var(--ink);border-radius:999px;background:#fff;
  font-weight:700;font-size:15px;color:var(--ink);text-decoration:none;
  box-shadow:var(--soft-sm);
}
.brand span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand:active{box-shadow:inset 2px 2px 6px rgba(23,38,32,.22)}
.dock-search{flex:1 1 auto;min-width:0;display:flex;margin:0}
.dock-search input{
  width:100%;min-height:44px;padding:0 15px;
  border:3px solid var(--ink);border-radius:999px;background:#fff;
  font-family:inherit;font-size:16px;color:var(--ink);
  box-shadow:var(--soft-sm);appearance:none;
}
.dock-search input:focus{outline:3px solid #5ecfa6;outline-offset:2px}
.menu-wrap{flex:0 0 auto}
.menu-wrap>summary{
  display:grid;place-items:center;width:48px;height:48px;
  border:3px solid var(--ink);border-radius:16px;
  background:linear-gradient(180deg,#d3ebf7,#add8e6);
  box-shadow:var(--soft-sm);cursor:pointer;list-style:none;
  transition:transform .18s ease-out;
}
.menu-wrap>summary::-webkit-details-marker{display:none}
.menu-wrap>summary:active{transform:scale(.94)}
.bars,.bars::before,.bars::after{display:block;width:20px;height:3px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out,opacity .2s ease-out}
.bars{position:relative}
.bars::before,.bars::after{content:'';position:absolute;left:0}
.bars::before{top:-6px}
.bars::after{top:6px}
.menu-wrap[open]>summary .bars{background:transparent}
.menu-wrap[open]>summary .bars::before{transform:rotate(45deg);top:0}
.menu-wrap[open]>summary .bars::after{transform:rotate(-45deg);top:0}

/* ---------- 全屏目录 ---------- */
.menu-panel{
  position:fixed;inset:0;z-index:55;margin:0;list-style:none;
  padding:calc(env(safe-area-inset-top,0px) + 20px) 16px calc(env(safe-area-inset-bottom,0px) + 104px);
  background:linear-gradient(160deg,#d9fff1 0%,#c6ecf8 62%,#eafff7 100%);
  overflow-y:auto;display:grid;gap:10px;align-content:start;
}
.menu-note{margin:0 0 6px;font-size:.95rem;color:var(--ink-2)}
.menu-panel li[data-nav]>a{
  display:flex;align-items:center;min-height:52px;padding:8px 18px;
  border:3px solid var(--ink);border-radius:var(--r-bub);background:#fff;
  color:var(--ink);text-decoration:none;font-size:1.05rem;font-weight:600;
  box-shadow:var(--soft-sm);
}
.menu-panel li[data-nav]>a:active{box-shadow:inset 2px 2px 7px rgba(23,38,32,.2);transform:translateY(1px)}
.menu-panel li.is-out{display:none}
.menu-foot{margin-top:6px}
.close-btn{
  width:100%;min-height:52px;padding:0 18px;
  border:3px solid var(--ink);border-radius:var(--r-bub);
  background:linear-gradient(180deg,#c9ffe9,#b4fde1);
  font-family:inherit;font-size:1rem;font-weight:600;color:var(--ink);
  box-shadow:var(--soft-sm);cursor:pointer;
}

/* ---------- 正文骨架 ---------- */
main{padding:18px 14px 128px}
main>div{scroll-margin-top:14px;margin:0 0 20px}
main>div:not(.hero):not(.rail){
  background:var(--card);border:3px solid var(--ink);border-radius:var(--r-card);
  padding:20px 16px 8px;
}
main h2{font-size:1.45rem;line-height:1.35;margin:0 0 6px}
main h3{font-size:1.14rem;line-height:1.4;margin:20px 0 8px}
main p{margin:0 0 13px}
main ul,main ol{margin:0 0 16px;padding-left:1.25em}
main li{margin:0 0 7px}
main a{color:#0f5140;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
main a:hover{color:#093627}
.subtitle{margin:0 0 14px;color:var(--ink-2);font-size:1rem;font-weight:500}
.eyebrow{
  display:inline-block;margin:0 0 14px;padding:5px 14px;
  border:3px solid var(--ink);border-radius:999px;background:#fff;
  font-size:.86rem;letter-spacing:.06em;font-weight:600;color:var(--ink-2);
  box-shadow:var(--soft-sm);
}

/* ---------- 头图区 ---------- */
.hero{
  position:relative;display:grid;gap:26px;align-content:center;
  min-height:100vh;min-height:100svh;
  padding:34px 4px 34px;
  background-image:radial-gradient(rgba(23,38,32,.17) 1.5px,transparent 1.6px);
  background-size:19px 19px;
}
.hero h1{
  margin:0 0 14px;
  font-size:clamp(2rem,7.4vw,3.2rem);
  line-height:1.2;letter-spacing:-.01em;font-weight:700;
}
.lede{margin:0 0 22px;font-size:1.05rem;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;padding:0 22px;
  border:3px solid var(--ink);border-radius:999px;
  font-family:inherit;font-size:1rem;font-weight:700;color:var(--ink);
  text-decoration:none;box-shadow:var(--soft);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-main{background:linear-gradient(180deg,#cbffe9,#b4fde1)}
.btn-ghost{background:linear-gradient(180deg,#e3f4fb,#add8e6)}
.btn:active{transform:translateY(2px);box-shadow:inset 2px 2px 8px rgba(23,38,32,.24)}
.hero-art{margin:0;display:grid;place-items:center;animation:bob 6s cubic-bezier(.34,1.4,.64,1) infinite}
.hero-img{
  width:100%;border:4px solid var(--ink);border-radius:28px;background:#fff;
  box-shadow:var(--soft);
}
.hero-blob{
  width:100%;aspect-ratio:1/1;max-width:340px;
  border:4px solid var(--ink);border-radius:46% 54% 52% 48% / 52% 46% 54% 48%;
  background:radial-gradient(circle at 34% 28%,#e6fff6,#add8e6 78%);
  box-shadow:var(--soft);
}
@keyframes bob{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

/* ---------- 侧栏 ---------- */
.rail{display:grid;gap:14px}
.rail-card{
  margin:0;padding:16px;border:3px solid var(--ink);border-radius:var(--r-card);
  background:linear-gradient(180deg,#e9fdff,#dcf2fd);
}
.rail-title{font-size:1.12rem;margin:0 0 4px}
.rail-card .subtitle{font-size:.92rem;margin:0 0 10px}
.rail-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.rail-list li{display:block;margin:0}
.rail-list a{
  display:flex;align-items:center;min-height:40px;padding:4px 2px;
  border-bottom:2px dashed rgba(23,38,32,.24);
  color:var(--ink);text-decoration:none;font-size:.95rem;font-weight:600;
}
.rail-list li:last-child a{border-bottom:none}
.rail-tip{background:linear-gradient(180deg,#fff8e6,#fdf1d6)}
.rail-tip-line{margin:0 0 6px;font-weight:700;font-size:.92rem;letter-spacing:.08em}
.rail-tip p:last-child{margin:0;font-size:.95rem}

/* ---------- 页脚 ---------- */
.foot{
  padding:30px 16px calc(126px + env(safe-area-inset-bottom,0px));
  background:linear-gradient(180deg,#1b2f27,#172620 60%);
  color:#dcfaee;border-top:4px solid var(--ink);
}
.cta{
  border:4px solid var(--mint);border-radius:var(--r-bub);
  background:linear-gradient(160deg,#274438,#1d3128);
  padding:22px 18px;margin:0 0 26px;text-align:center;
  box-shadow:inset -3px -3px 10px rgba(0,0,0,.28), 5px 5px 14px rgba(0,0,0,.3);
}
.cta-title{margin:0 0 8px;font-size:1.35rem;color:#e9fff7}
.cta p{margin:0 0 18px;font-size:.98rem;color:#c4e9d9}
.foot-grid{display:grid;gap:22px;margin:0 0 22px}
.foot address{font-style:normal;display:grid;gap:6px}
.foot-brand{font-family:'Lora',Georgia,serif;font-weight:700;font-size:1.1rem;color:#eafff6}
.foot-desc{font-size:.96rem;color:#bfe4d4}
.foot-note{font-size:.92rem;color:#93c2ae}
.foot-links-title{margin:0 0 8px;font-size:.9rem;letter-spacing:.1em;color:#a8d6c2}
.foot-links ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:2px 14px}
.foot-links a{
  display:flex;align-items:center;min-height:40px;
  color:#dffaee;text-decoration:none;font-size:.95rem;
  border-bottom:2px dashed rgba(180,253,225,.28);
}
.foot-links a:hover{color:#fff}
.copyright{
  margin:0;padding-top:16px;border-top:2px dashed rgba(180,253,225,.28);
  font-size:.86rem;color:#8fbca8;text-align:center;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (min-width:700px){
  main{padding:26px 22px 132px}
  main>div:not(.hero):not(.rail){padding:26px 24px 12px}
  .foot{padding:38px 24px calc(130px + env(safe-area-inset-bottom,0px))}
  .foot-grid{grid-template-columns:1.25fr 1fr;gap:28px}
  .foot-links ul{grid-template-columns:1fr}
  .hero{padding:44px 1px}
  .hero-actions{gap:14px}
}

/* ---------- 桌面 ---------- */
@media (min-width:980px){
  main{
    display:grid;grid-template-columns:minmax(0,1fr) 300px;
    gap:26px 34px;align-items:start;
    max-width:1180px;margin:0 auto;padding:34px 32px 140px;
  }
  main>div{grid-column:1;margin-bottom:22px}
  .hero{grid-column:1 / -1;grid-template-columns:1.08fr .92fr;align-items:center;gap:52px;min-height:92vh;padding:60px 6px}
  .hero-copy{max-width:34em}
  .rail{grid-column:2;grid-row:2 / span 40;align-self:start;position:sticky;top:26px;margin-bottom:0}
  .foot{padding:46px 32px 140px}
  .foot-grid,.copyright,.cta{max-width:1180px;margin-left:auto;margin-right:auto}
  .cta{margin-bottom:30px}
  .copyright{margin-top:0}
}

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

button[aria-expanded]{min-width:44px;min-height:44px}