:root{
  --main:#059669;
  --accent:#14b8a6;
  --bg:#f0fdfa;
  --ink:#134e4a;
  --line:#134e4a;
  --soft:#bdf0e6;
  --card:#ffffff;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px;
  line-height:1.6;
  background-image:radial-gradient(rgba(19,78,74,.07) 1px,transparent 1px);
  background-size:4px 4px;
}
h1,h2,h3,h4,.serif{
  font-family:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
  font-weight:800;
  letter-spacing:-.01em;
}
a{color:var(--main);text-decoration:none;}
a:hover{color:var(--accent);}
.wrap{max-width:960px;margin:0 auto;padding:0 16px;}
.hardcard{
  background:var(--card);
  border:2px solid var(--line);
  box-shadow:6px 6px 0 var(--line);
}
.chip{
  display:inline-block;
  border:2px solid var(--line);
  background:#fff;
  padding:2px 8px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.02em;
}
/* navbar */
.nav{
  position:sticky;top:0;z-index:100;
  background:var(--bg);
  border-bottom:3px solid var(--line);
}
.nav-inner{
  max-width:960px;margin:0 auto;padding:8px 16px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.brand{
  font-family:"Source Han Serif SC","Noto Serif SC",serif;
  font-weight:900;font-size:18px;color:var(--ink);
  display:flex;align-items:center;gap:6px;
}
.brand i{color:var(--main);}
.nav-links{display:flex;gap:2px;flex-wrap:wrap;}
.nav-links a{
  color:var(--ink);font-size:12px;font-weight:700;
  padding:6px 9px;border:2px solid transparent;
}
.nav-links a:hover{
  border:2px solid var(--line);background:#fff;color:var(--main);
}
.burger{
  display:none;background:#fff;border:2px solid var(--line);
  color:var(--ink);padding:5px 10px;font-size:14px;cursor:pointer;
}
@media(max-width:820px){
  .burger{display:block;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--bg);border-bottom:3px solid var(--line);
    flex-direction:column;padding:6px 10px 10px;
  }
  .nav-links.open{display:flex;}
  .nav-links a{border:2px solid var(--line);margin-top:4px;background:#fff;}
}
/* hero */
.hero{
  position:relative;overflow:hidden;
  border-bottom:3px solid var(--line);
  padding:56px 0 46px;
}
.hero-bg{
  position:absolute;inset:-20% -10%;
  background:
    linear-gradient(115deg,rgba(5,150,105,.16),rgba(20,184,166,.10) 45%,transparent 70%),
    repeating-linear-gradient(90deg,rgba(19,78,74,.10) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(0deg,rgba(19,78,74,.08) 0 1px,transparent 1px 42px);
  will-change:transform;
  pointer-events:none;
}
.hero-inner{position:relative;}
.hero h1{font-size:clamp(28px,5vw,46px);margin:14px 0 10px;line-height:1.15;}
.hero p.lead{max-width:640px;font-size:14px;margin-bottom:22px;}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0 8px;}
.stat{
  background:#fff;border:2px solid var(--line);
  box-shadow:5px 5px 0 var(--line);
  padding:14px 12px;
}
.stat b{
  display:block;font-family:"Source Han Serif SC",serif;
  font-size:clamp(24px,4vw,38px);line-height:1;color:var(--main);
}
.stat span{font-size:11px;font-weight:700;letter-spacing:.03em;}
@media(max-width:520px){.stats{grid-template-columns:1fr;}}
/* buttons */
.btn-hard{
  position:relative;display:inline-block;overflow:hidden;
  border:2px solid var(--line);background:var(--main);color:#fff;
  font-weight:800;font-size:13px;padding:11px 20px;
  box-shadow:5px 5px 0 var(--line);
  transition:background .25s linear,color .25s linear;
}
.btn-hard:hover{color:#fff;background:linear-gradient(90deg,#059669,#14b8a6,#059669);background-size:220% 100%;}
.btn-hard::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);
}
.btn-hard:hover::after{animation:sheen .85s ease;}
@keyframes sheen{from{left:-60%;}to{left:130%;}}
.btn-ghost{
  border:2px solid var(--line);background:#fff;color:var(--ink);
  font-weight:800;font-size:13px;padding:11px 18px;
  box-shadow:5px 5px 0 var(--line);display:inline-block;transition:.2s;
}
.btn-ghost:hover{background:var(--soft);color:var(--ink);}
/* sections */
section{padding:46px 0;border-bottom:2px solid rgba(19,78,74,.18);}
.sec-head{display:flex;align-items:baseline;gap:10px;margin-bottom:6px;}
.sec-head h2{font-size:clamp(20px,3.4vw,28px);margin:0;}
.sec-sub{font-size:12px;color:#0f766e;margin-bottom:22px;}
.num-tag{
  font-family:"Source Han Serif SC",serif;font-size:12px;font-weight:800;
  border:2px solid var(--line);background:var(--main);color:#fff;padding:1px 7px;
}
/* table */
.table-hard{
  width:100%;border-collapse:collapse;background:#fff;
  border:2px solid var(--line);box-shadow:6px 6px 0 var(--line);
  font-size:12.5px;
}
.table-hard th,.table-hard td{
  border:1px solid rgba(19,78,74,.35);padding:9px 10px;text-align:left;vertical-align:top;
}
.table-hard thead th{background:var(--main);color:#fff;font-size:12px;}
.table-hard tbody tr:nth-child(even){background:#f0fdfa;}
.scroll-x{overflow-x:auto;}
/* features */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
@media(max-width:640px){.feat-grid{grid-template-columns:1fr;}}
.feat{
  background:#fff;border:2px solid var(--line);box-shadow:5px 5px 0 var(--line);
  padding:14px 14px 12px;display:flex;gap:12px;align-items:flex-start;
}
.feat i{
  font-size:18px;color:var(--main);
  border:2px solid var(--line);padding:7px 9px;line-height:1;background:var(--bg);
}
.feat h3{font-size:15px;margin:0 0 4px;}
.feat p{margin:0;font-size:12.5px;}
/* accordion */
.acc{border:2px solid var(--line);box-shadow:6px 6px 0 var(--line);background:#fff;}
.acc-item{border-bottom:2px solid var(--line);}
.acc-item:last-child{border-bottom:none;}
.acc-btn{
  width:100%;text-align:left;background:#fff;border:none;cursor:pointer;
  padding:12px 14px;font-weight:800;font-size:13.5px;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  font-family:inherit;
}
.acc-btn:hover{background:var(--soft);}
.acc-btn i{color:var(--main);transition:transform .2s;}
.acc-item.on .acc-btn i{transform:rotate(45deg);}
.acc-pan{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.acc-pan p{margin:0;padding:0 14px 14px;font-size:12.5px;color:#155e59;}
/* posters */
.poster-grid{
  display:grid;width:100%;gap:12px;
  grid-template-columns:repeat(6,1fr);
}
@media(max-width:980px){.poster-grid{grid-template-columns:repeat(4,1fr);}}
@media(max-width:680px){.poster-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:440px){.poster-grid{grid-template-columns:repeat(2,1fr);}}
.pcard{
  background:#fff;border:2px solid var(--line);
  box-shadow:4px 4px 0 var(--line);
  overflow:hidden;
}
.pcard img{
  width:100%;aspect-ratio:2/3;object-fit:cover;display:block;
  background:linear-gradient(135deg,#d7f5ee,#a7e8da);
  opacity:0;transition:opacity .5s ease;
}
.pcard img.loaded{opacity:1;}
.pcard .pt{padding:7px 8px 9px;font-size:11.5px;font-weight:800;line-height:1.35;}
.pcard .pk{display:block;font-size:10px;font-weight:600;color:#0f766e;margin-top:2px;}
.pcard:hover{border-color:var(--accent);}
/* faq */
.faq-q{
  border:2px solid var(--line);background:#fff;box-shadow:5px 5px 0 var(--line);
  padding:13px 14px;margin-bottom:14px;
}
.faq-q h3{font-size:14px;margin:0 0 6px;display:flex;gap:8px;align-items:flex-start;}
.faq-q h3 i{color:var(--main);margin-top:3px;}
.faq-q p{margin:0 0 0 22px;font-size:12.5px;}
/* cta */
.cta{
  border:3px solid var(--line);background:#fff;
  box-shadow:8px 8px 0 var(--line);
  padding:26px 20px;text-align:center;
}
.cta h2{font-size:clamp(20px,3.6vw,30px);margin:0 0 8px;}
.cta p{font-size:13px;max-width:560px;margin:0 auto 18px;}
/* friend links */
.links-box{
  border:2px dashed var(--line);background:#fff;padding:14px;
  font-size:12.5px;word-break:break-all;
}
/* footer */
footer{padding:30px 0 46px;font-size:12px;}
.f-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
@media(max-width:640px){.f-grid{grid-template-columns:1fr;}}
footer h4{font-size:13px;margin:0 0 8px;}
footer ul{list-style:none;margin:0;padding:0;}
footer li{margin-bottom:5px;}
.copy{
  margin-top:22px;padding-top:12px;border-top:2px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
}
.small{font-size:11px;color:#0f766e;}

/* --- 子页面追加 --- */
.about-lead {font-size:1.05rem;line-height:1.9;color:var(--ink);max-width:820px;}
.about-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:26px;}
.about-card {background:var(--card);border:2px solid var(--line);border-radius:16px;padding:22px 20px;box-shadow:4px 4px 0 var(--soft);}
.about-card h3 {margin:0 0 10px;font-size:1.08rem;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:8px;}
.about-card h3 i {color:var(--main);}
.about-card p {margin:0;font-size:.93rem;line-height:1.8;color:var(--ink);opacity:.85;}
.timeline {margin-top:26px;border-left:3px dashed var(--soft);padding-left:22px;}
.tl-item {position:relative;padding:0 0 22px 0;}
.tl-item:last-child {padding-bottom:0;}
.tl-item::before {content:"";position:absolute;left:-31px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--main);border:3px solid var(--card);box-shadow:0 0 0 2px var(--line);}
.tl-item strong {display:block;font-size:1rem;color:var(--ink);margin-bottom:6px;}
.tl-item span {font-size:.92rem;line-height:1.8;color:var(--ink);opacity:.82;}
.about-note {background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;border-radius:16px;padding:24px 22px;margin-top:30px;}
.about-note h3 {margin:0 0 10px;font-size:1.1rem;font-weight:800;color:#fff;}
.about-note p {margin:0;font-size:.94rem;line-height:1.85;color:rgba(255,255,255,.95);}
.about-list {list-style:none;padding:0;margin:16px 0 0;}
.about-list li {position:relative;padding-left:26px;margin-bottom:12px;font-size:.95rem;line-height:1.8;color:var(--ink);}
.about-list li::before {content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;color:var(--main);font-size:.85rem;}
.about-cta {display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* --- 子页面追加 --- */
.guide-lead {font-size:1.05rem;line-height:1.9;max-width:820px;}
.step-list {list-style:none;padding:0;margin:0;counter-reset:step;}
.step-list li {position:relative;padding:0 0 0 58px;margin-bottom:26px;}
.step-list li::before {counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;background:var(--main);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;border:2px solid var(--line);box-shadow:3px 3px 0 var(--line);}
.step-list h3 {margin:0 0 6px;font-size:1.08rem;font-weight:800;}
.step-list p {margin:0;line-height:1.85;font-size:.95rem;}
.mini-note {background:var(--card);border:2px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:5px 5px 0 var(--soft);}
.mini-note h4 {margin:0 0 8px;font-size:1rem;font-weight:800;color:var(--main);}
.mini-note p {margin:0;line-height:1.8;font-size:.92rem;}
.shortcut {display:inline-block;background:var(--ink);color:#fff;border-radius:8px;padding:2px 10px;font-size:.82rem;font-weight:700;margin:0 2px;}
.acc-btn h3 {margin:0;font-size:1rem;font-weight:800;}
.guide-hero .hero-inner h1 {letter-spacing:.5px;}
.step-list li {padding-left:50px;}
.step-list li::before {width:34px;height:34px;font-size:.9rem;}

/* --- 子页面追加 --- */
.dis-wrap {max-width:960px;margin:0 auto;padding:0 18px;}
.dis-hero {padding:52px 0 26px;border-bottom:3px solid var(--line);}
.dis-hero h1 {font-weight:900;font-size:clamp(1.7rem,4.4vw,2.7rem);line-height:1.25;margin:0 0 14px;letter-spacing:-.5px;}
.dis-hero h1 .hl {background:linear-gradient(transparent 62%,var(--soft) 62%);padding:0 .12em;}
.dis-hero p {font-size:1.02rem;line-height:1.85;color:var(--ink);opacity:.86;margin:0;max-width:760px;}
.dis-meta {margin-top:20px;display:flex;flex-wrap:wrap;gap:10px;}
.dis-body {padding:34px 0 10px;}
.dis-card {background:var(--card);border:2px solid var(--line);border-radius:14px;padding:26px 24px;margin-bottom:22px;box-shadow:4px 4px 0 var(--line);}
.dis-card h2 {font-size:1.24rem;font-weight:800;margin:0 0 14px;display:flex;align-items:flex-start;gap:10px;line-height:1.45;}
.dis-card h2 .num-tag {flex:0 0 auto;margin-top:2px;}
.dis-card h3 {font-size:1.02rem;font-weight:700;margin:20px 0 8px;}
.dis-card p {font-size:.96rem;line-height:1.9;margin:0 0 12px;opacity:.92;}
.dis-card ul {margin:0 0 12px;padding-left:0;list-style:none;}
.dis-card ul li {position:relative;padding-left:24px;font-size:.95rem;line-height:1.9;margin-bottom:8px;opacity:.92;}
.dis-card ul li::before {content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--main);position:absolute;left:4px;top:0;}
.dis-card strong {color:var(--main);font-weight:700;}
.dis-note {background:var(--soft);border:2px dashed var(--line);border-radius:12px;padding:16px 18px;font-size:.92rem;line-height:1.85;margin-bottom:12px;}
.dis-cta {margin:8px 0 46px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.dis-cta .tip {font-size:.9rem;opacity:.78;}
.dis-card {padding:20px 16px;box-shadow:3px 3px 0 var(--line);}
.dis-card h2 {font-size:1.1rem;}

/* --- 子页面追加 --- */
.map-hero {padding:70px 0 44px;}
.map-hero h1 {font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.12;letter-spacing:-.02em;margin:14px 0 16px;}
.map-hero p {max-width:760px;color:var(--ink);opacity:.82;font-size:1.05rem;line-height:1.85;}
.map-grid {display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.map-block {background:var(--card);border:2px solid var(--line);border-radius:18px;padding:26px 26px 22px;box-shadow:6px 6px 0 var(--soft);display:flex;flex-direction:column;}
.map-block h3 {font-size:1.22rem;font-weight:800;margin:0 0 6px;display:flex;align-items:center;gap:10px;}
.map-block h3 i {color:var(--main);font-size:1.05rem;}
.map-block .blk-desc {font-size:.9rem;opacity:.72;line-height:1.7;margin-bottom:16px;}
.map-list {list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.map-list li a {display:flex;align-items:flex-start;gap:10px;text-decoration:none;color:var(--ink);padding:10px 13px;border:1.5px solid var(--soft);border-radius:12px;transition:.18s;font-weight:600;font-size:.95rem;}
.map-list li a:hover {border-color:var(--main);background:rgba(5,150,105,.07);transform:translateX(3px);}
.map-list li a i {color:var(--accent);margin-top:3px;font-size:.8rem;}
.map-list li a span.t {font-weight:700;}
.map-list li a span.d {display:block;font-weight:400;font-size:.82rem;opacity:.68;margin-top:3px;line-height:1.6;}
.map-note {margin-top:26px;background:linear-gradient(135deg,rgba(5,150,105,.10),rgba(20,184,166,.06));border:2px dashed var(--main);border-radius:18px;padding:24px 26px;}
.map-note h3 {font-size:1.1rem;font-weight:800;margin:0 0 10px;}
.map-note p {margin:0 0 8px;font-size:.92rem;line-height:1.8;opacity:.85;}
.map-note p:last-child {margin-bottom:0;}
.toc-bar {display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.toc-bar a {font-size:.85rem;font-weight:700;text-decoration:none;color:var(--ink);border:2px solid var(--line);border-radius:999px;padding:7px 16px;background:var(--card);transition:.18s;}
.toc-bar a:hover {background:var(--main);border-color:var(--main);color:#fff;}
.map-grid {grid-template-columns:1fr;}
.map-hero {padding:52px 0 34px;}