@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@300;400;500;700&display=swap');

:root{
  --amber:#F2B233;
  --amber-dim:#A9700A;
  --ink:#1C1A1F;
  --ink-soft:#2A2731;
  --paper:#F7F1E4;
  --paper-dim:#EADFC8;
  --r:28px;
}

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

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  background:var(--paper);
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Noto Sans Thai',system-ui,-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  overflow-x:clip;
}

img{max-width:100%;display:block}
a{
  color:inherit;
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:3px;
  text-decoration-color:var(--amber-dim);
}
a:hover{text-decoration-color:currentColor}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

h1,h2,h3,h4{line-height:1.24;letter-spacing:.005em;margin:0 0 .5em;font-weight:700}
p{margin:0 0 1.1em}

/* ---------- 顶部双段导航 ---------- */
.toprail{
  position:sticky;
  top:0;
  z-index:60;
  max-width:100%;
  background:var(--ink);
  color:var(--paper);
  border-bottom:2px solid var(--amber);
  backdrop-filter:saturate(140%) blur(6px);
}

.primary{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:10px;
  max-width:1400px;
  margin:0 auto;
  padding:10px 22px;
}

.primary ul{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;
  padding:0;
  min-width:0;
}

.menuright{justify-content:flex-end}

.primary a{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:8px 12px;
  border:2px solid transparent;
  border-radius:999px;
  font-size:16px;
  text-decoration:none;
  white-space:nowrap;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}

.primary a:hover{background:var(--amber);color:var(--ink);border-color:var(--amber)}

.brand{
  font-size:20px!important;
  font-weight:700;
  letter-spacing:.03em;
  color:var(--amber)!important;
  padding:8px 18px!important;
  border:2px solid var(--amber)!important;
}
.brand:hover{background:var(--amber)!important;color:var(--ink)!important}

.cta{
  background:var(--amber);
  color:var(--ink)!important;
  border-color:var(--amber)!important;
  font-weight:700;
}
.cta:hover{background:var(--paper);border-color:var(--paper)!important;color:var(--ink)!important}

.peel{
  border-top:1px solid rgba(247,241,228,.18);
  overflow-x:auto;
  max-width:100%;
  scrollbar-width:none;
}
.peel::-webkit-scrollbar{display:none}

.peel ul{
  display:flex;
  flex-wrap:nowrap;
  gap:8px;
  list-style:none;
  margin:0 auto;
  padding:8px 22px;
  width:max-content;
}

.peel a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:6px 14px;
  border:2px solid rgba(242,178,51,.42);
  border-radius:999px;
  font-size:16px;
  color:var(--paper);
  text-decoration:none;
  white-space:nowrap;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.peel a:hover{background:var(--amber);color:var(--ink);border-color:var(--amber)}

/* ---------- 骨架 ---------- */
.shell{
  display:grid;
  grid-template-columns:248px minmax(0,1fr);
  max-width:1400px;
  margin:0 auto;
}

.sidecol{position:relative;padding:26px 12px 26px 22px;min-width:0}

.toc{position:sticky;top:136px;max-width:100%;min-width:0}
.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}

.toc a{
  display:flex;
  align-items:center;
  min-height:42px;
  padding:8px 12px;
  font-size:16px;
  text-decoration:none;
  border:2px solid transparent;
  border-radius:999px;
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.toc a:hover{border-color:var(--ink);background:var(--paper-dim)}
.toc a.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

.totop{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:8px 14px;
  margin-top:16px;
  border:2px solid var(--ink);
  border-radius:999px;
  font-size:16px;
  text-decoration:none;
  background:var(--paper);
}
.totop:hover{background:var(--ink);color:var(--paper)}

.story{min-width:0;padding:14px 22px 80px 0;perspective:1px}

.story > article{
  position:relative;
  margin:0 0 16px;
  padding:56px 40px;
  border:2px solid currentColor;
  border-radius:var(--r);
  overflow:hidden;
  scroll-margin-top:150px;
  transition:border-color .3s ease;
}
.story > article:hover{border-color:var(--amber)}
.story > article:nth-of-type(odd){background:var(--ink);color:var(--paper)}
.story > article:nth-of-type(even){background:var(--paper);color:var(--ink)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  display:flex;
  align-items:center;
  min-height:100svh;
  padding:96px 44px 88px 40px;
  isolation:isolate;
  background-color:var(--ink) !important;
  color:var(--paper) !important;
  background-image:
    radial-gradient(circle at 84% 16%,rgba(242,178,51,.30),transparent 56%),
    radial-gradient(circle at 10% 92%,rgba(242,178,51,.16),transparent 62%);
  background-size:cover;
}

.hero-copy{
  position:relative;
  z-index:3;
  width:min(600px,60%);
  min-width:0;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}

.hero-title{
  font-size:clamp(2rem,4.6vw,3.4rem);
  line-height:1.14;
  letter-spacing:-.012em;
  margin:0 0 .4em;
}

.lede{
  font-size:1.1rem;
  line-height:1.7;
  color:rgba(247,241,228,.84);
  max-width:38ch;
}

.story .eyebrow{
  display:inline-flex;
  align-items:center;
  padding:7px 16px;
  margin:22px 0 12px;
  border:2px solid var(--amber);
  border-radius:999px;
  color:var(--amber);
  font-size:16px;
  letter-spacing:.1em;
  animation:float 5.5s ease-in-out infinite;
}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-7px)}
}

.tagline{
  margin:0;
  font-size:clamp(1.25rem,2.4vw,1.8rem);
  color:var(--amber);
  letter-spacing:.02em;
}

.plate{
  position:absolute;
  margin:0;
  border:2px solid var(--amber);
  border-radius:var(--r);
  overflow:hidden;
  background:linear-gradient(160deg,rgba(242,178,51,.34),rgba(242,178,51,.06));
  will-change:transform;
}
.plate-a{right:4%;top:11%;width:33%;max-width:340px;aspect-ratio:4/5;z-index:1}
.plate-b{
  right:19%;bottom:8%;width:26%;max-width:260px;aspect-ratio:1;z-index:2;
  border-color:var(--paper);
  background:linear-gradient(200deg,rgba(247,241,228,.24),rgba(247,241,228,.05));
}
.plate-img{width:100%;height:100%;object-fit:cover}

.cue{
  position:absolute;
  left:50%;
  bottom:22px;
  transform:translateX(-50%);
  z-index:4;
  font-size:16px;
  letter-spacing:.16em;
  color:var(--amber);
  padding:8px 16px;
  border:2px solid rgba(242,178,51,.5);
  border-radius:999px;
  background:rgba(28,26,31,.62);
  white-space:nowrap;
}

/* ---------- 正文排版 ---------- */
.story h2{font-size:clamp(1.45rem,2.6vw,2rem);margin:0 0 18px;letter-spacing:0}
.story h3{font-size:1.18rem;margin:1.7em 0 .5em}
.story h4{font-size:1.05rem;margin:1.4em 0 .4em;letter-spacing:.04em}

.story > article small{
  display:block;
  font-size:16px;
  letter-spacing:.16em;
  margin-bottom:8px;
  color:var(--amber-dim);
}
.story > article:nth-of-type(odd) small{color:var(--amber)}

.story > article:nth-of-type(odd) a{color:var(--amber)}
.story > article:nth-of-type(even) a{color:#7A4E00}

.story p{max-width:64ch}
.story ul,.story ol{margin:0 0 1.2em;padding-left:1.4em;max-width:62ch}
.story li{margin:.4em 0}
.story li::marker{color:var(--amber-dim);font-weight:700}
.story strong{font-weight:700}

.story > article img{border-radius:22px}
.story figure{
  margin:28px 0;
  border:2px solid currentColor;
  border-radius:var(--r);
  overflow:hidden;
  max-width:100%;
}
.story figure img{border-radius:0}
.story figcaption{
  font-size:16px;
  line-height:1.6;
  padding:12px 18px;
  border-top:2px solid currentColor;
  opacity:.78;
}

.story blockquote{
  margin:28px 0;
  padding:18px 22px;
  border-left:6px solid var(--amber);
  border-radius:0 22px 22px 0;
  background:rgba(242,178,51,.12);
}
.story blockquote p:last-child{margin-bottom:0}

.story table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  font-size:16px;
  margin:0 0 1.2em;
}
.story th,.story td{padding:10px 14px;border-bottom:2px solid rgba(128,128,128,.34);text-align:left}
.story th{font-weight:700;color:var(--amber-dim)}
.story > article:nth-of-type(odd) th{color:var(--amber)}

.story code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.94em;
  background:rgba(28,26,31,.09);
  padding:.12em .4em;
  border-radius:8px;
  overflow-wrap:break-word;
}
.story > article:nth-of-type(odd) code{background:rgba(247,241,228,.15)}
.story pre{
  overflow-x:auto;
  max-width:100%;
  padding:16px 18px;
  border:2px solid currentColor;
  border-radius:20px;
  line-height:1.6;
}
.story pre code{background:none;padding:0}

.story hr{border:0;border-top:2px solid currentColor;opacity:.32;margin:34px 0}
.story time{font-size:16px;letter-spacing:.05em;opacity:.8}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink);
  color:var(--paper);
  border-top:2px solid var(--amber);
  padding:52px max(22px,calc((100% - 1240px) / 2)) 30px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px 20px;
}
.site-foot p{margin:0;font-size:16px;line-height:1.7;opacity:.86;min-width:0;overflow-wrap:break-word}
.site-foot .fbrand{font-size:19px;font-weight:700;letter-spacing:.04em;color:var(--amber);opacity:1}
.site-foot .copy{
  grid-column:1/-1;
  text-align:center;
  font-size:16px;
  opacity:.62;
  padding-top:18px;
  border-top:2px solid rgba(247,241,228,.18);
}

/* ---------- 滚动揭示 ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity .65s ease,transform .65s cubic-bezier(.22,.7,.25,1)}
.rv.in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (max-width:1080px){
  .hero-copy{width:min(560px,66%)}
  .story > article{padding:48px 32px}
}

@media (max-width:900px){
  .shell{display:block}
  .sidecol{padding:16px 16px 0;position:static}
  .toc{position:static}
  .toc ul{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    max-width:100%;
    padding-bottom:6px;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .toc ul::-webkit-scrollbar{display:none}
  .toc a{border-color:var(--ink);white-space:nowrap;flex:0 0 auto}
  .totop{margin:12px 0 0}
  .story{padding:14px 16px 64px}
  .story > article{padding:42px 22px;scroll-margin-top:130px}
  .hero{min-height:auto;padding:64px 22px 104px}
  .hero-copy{width:100%}
  .plate-a{width:46%;right:-6%;top:5%;opacity:.42;border-color:rgba(242,178,51,.7)}
  .plate-b{width:34%;right:6%;bottom:10%;opacity:.42;border-color:rgba(247,241,228,.6)}
  .primary{display:flex;overflow-x:auto;padding:10px 14px;gap:6px;max-width:100%;scrollbar-width:none}
  .primary::-webkit-scrollbar{display:none}
  .brandslot{order:-1;flex:0 0 auto}
  .menuleft,.menuright{flex:0 0 auto}
  .menuright{justify-content:flex-start}
  .peel ul{padding:8px 14px}
  .site-foot{grid-template-columns:repeat(2,minmax(0,1fr));padding:40px 18px 24px;text-align:left}
}

@media (max-width:520px){
  .story > article{padding:36px 18px}
  .primary a{padding:8px 10px}
  .cue{font-size:16px;padding:6px 12px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .eyebrow{animation:none}
  .plate{will-change:auto}
}

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