*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0}
ul[class],ol[class]{list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

:root{
  --kp-ink:#0B1A15;
  --kp-panel:#14352A;
  --kp-jade:#2E6653;
  --kp-gold:#A9792E;
  --kp-gold-hi:#E4C27D;
  --kp-amber:#D88735;
  --kp-porcelain:#F6F2E7;
  --kp-slate:#4E6973;
  --kp-mist:#DDE6E6;
  --kp-wine:#5B2530;
  --kp-char:#101512;
  --kp-ok:#3F7D5A;
  --kp-gutter:clamp(16px,4vw,40px);
  --kp-max:1200px;
  --kp-radius:16px;
  --kp-font-display:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --kp-font-body:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --kp-font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --kp-line:rgba(228,194,125,.22);
  --kp-line-strong:rgba(228,194,125,.42);
}

body{
  min-height:100vh;
  background-color:var(--kp-ink);
  background-image:
    radial-gradient(circle at 84% 4%,rgba(169,121,46,.16),transparent 44%),
    radial-gradient(circle at 4% 94%,rgba(46,102,83,.34),transparent 48%),
    repeating-linear-gradient(135deg,rgba(255,255,255,.02) 0 2px,transparent 2px 6px);
  color:var(--kp-porcelain);
  font-family:var(--kp-font-body);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--kp-font-display);font-weight:800;line-height:1.22;letter-spacing:.02em}
h1{font-size:clamp(30px,4.4vw,52px)}
h2{font-size:clamp(23px,2.9vw,34px)}
h3{font-size:clamp(18px,2vw,22px)}
p{max-width:70ch}
strong{font-weight:700;color:var(--kp-gold-hi)}
:where(a,button,[tabindex],summary,input,select,textarea):focus-visible{
  outline:2px solid var(--kp-amber);
  outline-offset:2px;
  border-radius:6px;
}
.kp-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.kp-skip{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 18px;border-radius:999px;
  background:var(--kp-gold-hi);color:#22170a;
  font-size:14px;font-weight:700;
  transform:translateY(-160%);
  transition:transform .18s ease;
}
.kp-skip:focus{transform:translateY(0)}

/* ===== 头部浮岛 ===== */
.kp-header{position:sticky;top:0;z-index:80;padding:16px var(--kp-gutter) 0}
.kp-progress{position:fixed;top:0;left:0;right:0;height:2px;background:rgba(228,194,125,.12);z-index:120;pointer-events:none}
.kp-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--kp-gold),var(--kp-gold-hi))}
.kp-header__inner{
  position:relative;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  width:100%;
  max-width:var(--kp-max);
  margin-inline:auto;
  padding:9px 10px 9px 14px;
  border-radius:999px;
  border:1px solid var(--kp-line);
  background:linear-gradient(180deg,rgba(20,53,42,.94),rgba(11,26,21,.88));
  box-shadow:0 22px 46px -30px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
}
.kp-brand{display:inline-flex;align-items:center;gap:11px;min-width:0}
.kp-brand__mark{
  flex:0 0 auto;
  display:grid;place-items:center;
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(160deg,var(--kp-gold-hi),var(--kp-gold) 62%,#7d571d);
  color:#241703;
  font-family:var(--kp-font-display);
  font-size:21px;font-weight:900;letter-spacing:0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 6px 14px -8px rgba(0,0,0,.9);
}
.kp-brand__text{display:flex;flex-direction:column;min-width:0}
.kp-brand__name{font-family:var(--kp-font-display);font-size:16.5px;font-weight:800;letter-spacing:.04em;color:var(--kp-porcelain);white-space:nowrap}
.kp-brand__sub{font-size:11px;letter-spacing:.18em;color:rgba(228,194,125,.82);white-space:nowrap}
.kp-nav-shell{display:flex;align-items:center;gap:14px;justify-self:end;min-width:0}
.kp-nav__list{display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.kp-nav__link{
  position:relative;
  display:block;
  padding:8px 12px;
  border-radius:999px;
  font-size:14px;letter-spacing:.06em;
  color:rgba(246,242,231,.76);
  transition:color .18s ease,background-color .18s ease;
}
.kp-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:1px;
  background:var(--kp-gold-hi);
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.kp-nav__link:hover{color:var(--kp-porcelain);background:rgba(228,194,125,.09)}
.kp-nav__link:hover::after,.kp-nav__link:focus-visible::after{transform:scaleX(1)}
.kp-nav__link[aria-current="page"]{
  background:var(--kp-gold);
  color:var(--kp-porcelain);
  font-weight:700;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24);
}
.kp-nav__link[aria-current="page"]::after{display:none}
.kp-nav__meta{display:flex;align-items:center;padding-left:14px;border-left:1px solid var(--kp-line)}
.kp-status{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;letter-spacing:.12em;color:rgba(246,242,231,.62);white-space:nowrap}
.kp-status__dot{width:6px;height:6px;border-radius:50%;background:var(--kp-ok);box-shadow:0 0 0 3px rgba(63,125,90,.22)}
.kp-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:999px;
  background:linear-gradient(180deg,var(--kp-gold-hi),var(--kp-gold));
  color:#231703;
  font-size:14px;font-weight:700;letter-spacing:.04em;white-space:nowrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.45),0 10px 22px -14px rgba(0,0,0,.9);
  transition:transform .18s ease,box-shadow .18s ease;
}
.kp-cta:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 16px 26px -16px rgba(0,0,0,.95)}
.kp-nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 14px;border-radius:999px;
  border:1px solid var(--kp-line-strong);
  color:var(--kp-porcelain);
  font-size:12.5px;letter-spacing:.16em;
}
.kp-nav-toggle__bars{display:grid;gap:4px;width:16px}
.kp-nav-toggle__bars span{display:block;height:1.5px;border-radius:2px;background:var(--kp-gold-hi);transition:transform .2s ease,opacity .2s ease}
.kp-header[data-open="true"] .kp-nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.kp-header[data-open="true"] .kp-nav-toggle__bars span:nth-child(2){opacity:0}
.kp-header[data-open="true"] .kp-nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ===== 页脚 ===== */
.kp-footer{
  margin-top:clamp(56px,8vw,104px);
  padding-top:clamp(34px,5vw,62px);
  background:linear-gradient(180deg,rgba(20,53,42,.96),#08120F 78%);
  border-top:1px solid var(--kp-line-strong);
  color:rgba(246,242,231,.78);
}
.kp-footer__grid{
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr 1.25fr;
  gap:clamp(22px,3vw,44px);
  align-items:start;
}
.kp-footer__mark{font-family:var(--kp-font-display);font-size:clamp(22px,2.4vw,29px);font-weight:900;letter-spacing:.05em;color:var(--kp-porcelain)}
.kp-footer__title{margin-top:6px;font-size:11.5px;letter-spacing:.24em;color:var(--kp-gold-hi)}
.kp-footer__summary{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(246,242,231,.66);max-width:36ch}
.kp-footer__note{
  margin-top:14px;padding-left:12px;
  border-left:2px solid rgba(169,121,46,.6);
  font-size:12.5px;line-height:1.75;color:rgba(246,242,231,.52);max-width:38ch;
}
.kp-footer__col{min-width:0}
.kp-footer__col-title{
  padding-bottom:9px;margin-bottom:12px;
  border-bottom:1px solid var(--kp-line);
  font-family:var(--kp-font-body);
  font-size:11.5px;font-weight:700;letter-spacing:.26em;
  color:var(--kp-gold);
}
.kp-footer__links{display:grid;gap:2px}
.kp-footer__link{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  color:rgba(246,242,231,.74);
  transition:color .18s ease,transform .18s ease;
}
.kp-footer__link:hover{color:var(--kp-gold-hi);transform:translateX(3px)}
.kp-footer__contact{display:grid;gap:0}
.kp-contact-line{
  display:flex;align-items:baseline;gap:10px;
  padding:8px 0;
  border-bottom:1px dashed rgba(228,194,125,.16);
  font-size:13.5px;
}
.kp-contact-line__key{flex:0 0 auto;font-size:11px;letter-spacing:.14em;color:rgba(246,242,231,.48)}
.kp-contact-line__val{
  flex:1 1 auto;min-width:0;
  font-family:var(--kp-font-mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--kp-porcelain);
  word-break:break-all;
}
.kp-contact-line__val--text{font-family:var(--kp-font-body);font-size:13px;line-height:1.65;color:rgba(246,242,231,.8)}
.kp-copy{
  flex:0 0 auto;
  padding:2px 9px;border-radius:999px;
  border:1px solid rgba(228,194,125,.4);
  font-size:11px;letter-spacing:.1em;
  color:var(--kp-gold-hi);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.kp-copy:hover{background:rgba(228,194,125,.14)}
.kp-copy.is-copied{background:var(--kp-ok);border-color:var(--kp-ok);color:#F6F2E7}
.kp-copy__text{display:inline-block;min-width:3em;text-align:center}
.kp-footer__base{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;align-items:center;
  margin-top:clamp(28px,4vw,46px);
  padding:18px 0 26px;
  border-top:1px solid var(--kp-line);
  font-size:12.5px;color:rgba(246,242,231,.55);
}
.kp-footer__copy{max-width:none}
.kp-icp{font-family:var(--kp-font-mono);letter-spacing:.03em;color:rgba(246,242,231,.6)}
.kp-footer__legal{display:flex;flex-wrap:wrap;gap:6px 18px}
.kp-footer__legal a{transition:color .18s ease}
.kp-footer__legal a:hover{color:var(--kp-gold-hi)}

/* ===== 页面容器与节奏 ===== */
.kp-container{width:100%;max-width:calc(var(--kp-max) + var(--kp-gutter) * 2);margin-inline:auto;padding-inline:var(--kp-gutter)}
.kp-section{padding-block:clamp(34px,5vw,68px)}
.kp-section--tight{padding-block:clamp(20px,3vw,34px)}
.kp-lead{font-size:clamp(15px,1.4vw,17px);line-height:1.85;color:rgba(246,242,231,.78);max-width:62ch}
.kp-rule{height:1px;border:0;margin:clamp(26px,4vw,46px) 0;background:linear-gradient(90deg,var(--kp-gold),rgba(169,121,46,0))}
.kp-grid{display:grid;gap:clamp(20px,3vw,42px)}
.kp-grid--5-7{grid-template-columns:5fr 7fr}
.kp-grid--4-8{grid-template-columns:4fr 8fr}
.kp-grid--3{grid-template-columns:repeat(3,1fr)}

.kp-chapter{display:flex;align-items:flex-start;gap:clamp(10px,1.6vw,20px);margin-bottom:clamp(16px,2.2vw,26px)}
.kp-chapter__num{
  font-family:var(--kp-font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(42px,6.4vw,84px);
  font-weight:700;line-height:.82;letter-spacing:-.03em;
  color:transparent;
  -webkit-text-stroke:1px rgba(228,194,125,.55);
  flex:0 0 auto;
}
.kp-chapter__eyebrow{display:block;padding-top:6px;font-size:11.5px;letter-spacing:.26em;color:var(--kp-amber)}

/* ===== 按钮 ===== */
.kp-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14.5px;font-weight:700;letter-spacing:.04em;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.kp-btn--solid{background:linear-gradient(180deg,var(--kp-gold-hi),var(--kp-gold));color:#231703;box-shadow:inset 0 1px 0 rgba(255,255,255,.45)}
.kp-btn--solid:hover{transform:translateY(-2px)}
.kp-btn--ghost{border:1px solid var(--kp-line-strong);color:var(--kp-porcelain)}
.kp-btn--ghost:hover{background:rgba(228,194,125,.1);border-color:var(--kp-gold-hi)}

/* ===== 面包屑 ===== */
.kp-breadcrumb{margin-bottom:clamp(16px,2.4vw,26px);font-size:12.5px;color:rgba(246,242,231,.58)}
.kp-breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.kp-breadcrumb__item{display:inline-flex;align-items:center}
.kp-breadcrumb__item + .kp-breadcrumb__item::before{content:"/";margin-right:8px;color:rgba(169,121,46,.72)}
.kp-breadcrumb__link{transition:color .18s ease}
.kp-breadcrumb__link:hover{color:var(--kp-gold-hi)}
.kp-breadcrumb__current{color:var(--kp-gold-hi)}

/* ===== 卡片 ===== */
.kp-card{
  position:relative;
  padding:clamp(18px,2.2vw,26px);
  border-radius:var(--kp-radius);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease;
}
.kp-card--glass{
  background:rgba(20,53,42,.66);
  border:1px solid var(--kp-line);
  color:var(--kp-porcelain);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.kp-card--glass:hover{transform:translateY(-3px);border-color:var(--kp-line-strong)}
.kp-card--solid{
  background:var(--kp-porcelain);
  color:var(--kp-char);
  border:1px solid rgba(11,26,21,.1);
  box-shadow:0 20px 40px -32px rgba(0,0,0,.9);
}
.kp-card__label{display:block;font-size:11px;letter-spacing:.24em;color:var(--kp-gold-hi);margin-bottom:8px}
.kp-card--solid .kp-card__label{color:var(--kp-wine)}
.kp-card__title{margin-bottom:8px;font-size:clamp(17px,1.8vw,21px)}
.kp-card__body{font-size:14.5px;line-height:1.85;color:inherit;opacity:.82;max-width:60ch}

/* ===== 数据带 / 标签 / 数字 ===== */
.kp-data-band{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 22px;
  padding:12px 16px;
  border-radius:10px;
  border-left:3px solid var(--kp-gold);
  background:rgba(78,105,115,.26);
}
.kp-data-band__label{font-size:11.5px;letter-spacing:.2em;color:rgba(246,242,231,.62)}
.kp-data-band__value{font-family:var(--kp-font-mono);font-variant-numeric:tabular-nums;font-size:15px;color:var(--kp-gold-hi)}
.kp-mono{font-family:var(--kp-font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.kp-tag{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:999px;font-size:11.5px;letter-spacing:.16em;line-height:1.7}
.kp-tag--gold{border:1px solid var(--kp-line-strong);color:var(--kp-gold-hi)}
.kp-tag--amber{background:var(--kp-amber);color:#231703}
.kp-tag--wine{background:var(--kp-wine);color:var(--kp-porcelain)}

/* ===== 图片容器基础规则 ===== */
.kp-media{
  position:relative;
  overflow:hidden;
  border-radius:var(--kp-radius);
  border:1px solid var(--kp-line);
  background:linear-gradient(150deg,#14352A,#0B1A15 70%);
  aspect-ratio:16/10;
  isolation:isolate;
}
.kp-media::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(228,194,125,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(228,194,125,.13) 1px,transparent 1px);
  background-size:46px 46px;
  opacity:.65;
}
.kp-media--wide{aspect-ratio:21/9}
.kp-media--tall{aspect-ratio:4/5}
.kp-media__img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.kp-media__caption{
  position:absolute;z-index:2;left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12.5px;line-height:1.6;color:rgba(246,242,231,.86);
  background:linear-gradient(0deg,rgba(8,18,15,.92),rgba(8,18,15,0));
}

/* ===== 显现与状态 ===== */
[data-reveal],.kp-reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
[data-reveal].is-visible,.kp-reveal.is-visible{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .kp-nav__meta{display:none}
  .kp-footer__grid{grid-template-columns:1.4fr 1fr 1fr}
  .kp-footer__col--contact{grid-column:1 / -1}
}
@media (max-width:900px){
  .kp-header{padding:10px var(--kp-gutter) 0}
  .kp-header__inner{grid-template-columns:1fr auto;border-radius:18px;padding:10px 12px}
  .kp-brand__mark{width:38px;height:38px;border-radius:11px;font-size:19px}
  .kp-nav-toggle{display:inline-flex}
  .kp-nav-shell{
    position:absolute;z-index:5;
    top:calc(100% + 10px);left:0;right:0;
    display:grid;gap:12px;justify-self:stretch;
    padding:16px;
    max-height:calc(100vh - 150px);overflow:auto;
    border-radius:18px;
    border:1px solid var(--kp-line-strong);
    background:linear-gradient(180deg,#14352A,#0B1A15);
    box-shadow:0 34px 64px -34px rgba(0,0,0,.98);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  }
  .kp-header[data-open="true"] .kp-nav-shell{opacity:1;visibility:visible;transform:none}
  .kp-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .kp-nav__link{padding:13px 12px;border-radius:10px;font-size:15.5px;border-bottom:1px solid rgba(228,194,125,.12)}
  .kp-nav__link::after{display:none}
  .kp-nav__link[aria-current="page"]{border-radius:10px;border-bottom-color:transparent}
  .kp-nav__meta{display:flex;padding:6px 0 0;border-left:0}
  .kp-cta{width:100%}
  body.kp-nav-open{overflow:hidden}
  .kp-grid--5-7,.kp-grid--4-8{grid-template-columns:1fr}
  .kp-grid--3{grid-template-columns:1fr}
  .kp-footer__grid{grid-template-columns:1fr 1fr}
  .kp-footer__brand{grid-column:1 / -1}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .kp-brand__sub{display:none}
  .kp-brand__name{font-size:15px}
  .kp-chapter__num{font-size:clamp(36px,12vw,54px)}
  .kp-footer__grid{grid-template-columns:1fr;gap:26px}
  .kp-footer__base{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-reveal],.kp-reveal{opacity:1;transform:none}
  .kp-progress__bar{transition:none}
  .kp-nav__link:hover,.kp-footer__link:hover,.kp-btn:hover,.kp-cta:hover,.kp-card--glass:hover{transform:none}
}