/* ================================================================
   龙珠主站 · 共享站点样式表  /assets/site.css
   暖纸 × 深墨 × 印刷色 · 切角面板与能量轨迹
   ================================================================ */

/* ---------- 01 变量 ---------- */
:root{
  --paper:#F7F2E8;
  --ink:#0B1B3A;
  --orange:#F28A1F;
  --star:#2D6CDF;
  --amber:#FFC53D;
  --jade:#19A974;
  --crimson:#D64545;
  --stone:#D9D4C8;
  --night:#13284D;
  --peach:#FDE3C4;

  --ink-soft:rgba(11,27,58,.74);
  --ink-mute:rgba(11,27,58,.54);
  --paper-soft:rgba(247,242,232,.78);
  --paper-line:rgba(247,242,232,.16);

  --wrap:1200px;
  --gap:18px;
  --cut:26px;
  --ease:cubic-bezier(.22,.68,.32,1);

  --font-title:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:var(--font-title);
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- 02 Reset 与基础元素 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 10% -6%,rgba(242,138,31,.12),transparent 44%),
    radial-gradient(circle at 94% 3%,rgba(45,108,223,.09),transparent 40%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:var(--star);text-decoration-thickness:1px;text-underline-offset:3px}
::selection{background:var(--amber);color:var(--ink)}
#main-content{scroll-margin-top:86px;display:block}

/* ---------- 03 中文排版 ---------- */
h1,h2,h3,h4,h5{
  margin:0 0 .55em;
  font-family:var(--font-title);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.012em;
  color:var(--ink);
}
h1{font-size:clamp(28px,4.6vw,44px)}
h2{font-size:clamp(23px,3.1vw,32px)}
h3{font-size:clamp(19px,2.2vw,24px)}
h4{font-size:18px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
strong{font-weight:800}
small{font-size:13px}
.display{
  font-size:clamp(36px,7vw,66px);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.028em;
}
.lede{
  font-size:clamp(15.5px,1.5vw,17.5px);
  line-height:1.82;
  color:var(--ink-soft);
  max-width:64ch;
}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--ink-mute)}

/* ---------- 04 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.wrap--narrow{max-width:820px}
.wrap--wide{max-width:1340px}
.section{padding:56px 0}
.section--tight{padding:34px 0}
.section--ink{background:var(--ink);color:var(--paper-soft)}
.section--ink h1,.section--ink h2,.section--ink h3,.section--ink h4{color:#fff}
.section--night{background:var(--night);color:var(--paper-soft)}
.section--night h1,.section--night h2,.section--night h3,.section--night h4{color:#fff}
.section--peach{background:var(--peach)}
.section__head{margin-bottom:26px}
.rule{height:1px;border:0;background:var(--stone);margin:28px 0}
.rule--dark{background:var(--paper-line)}
.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}

/* ---------- 05 索引与标签 ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);
  font-size:11px;font-weight:700;letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--star);
  margin-bottom:12px;
}
.kicker__dot{
  width:8px;height:8px;flex:none;
  background:var(--orange);
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.section--ink .kicker,.section--night .kicker{color:var(--amber)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);
  font-size:11px;font-weight:700;letter-spacing:.1em;line-height:1.4;
  padding:4px 10px;
  background:var(--peach);color:#8A4A00;
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.tag--jade{background:rgba(25,169,116,.16);color:#0B6B49}
.tag--star{background:rgba(45,108,223,.14);color:#1B4AA0}
.tag--crimson{background:rgba(214,69,69,.14);color:#9D2B2B}
.tag--amber{background:rgba(255,197,61,.26);color:#7A4E00}
.section--ink .tag,.section--night .tag{background:rgba(247,242,232,.12);color:var(--amber)}

/* ---------- 06 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-size:14px;font-weight:700;line-height:1.2;
  padding:10px 18px;
  color:var(--ink);background:transparent;border:0;
  text-decoration:none;cursor:pointer;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  transition:transform .18s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn--solid{
  background:linear-gradient(115deg,var(--orange),var(--amber));
  color:#3A1C00;
  box-shadow:inset 0 0 0 1px rgba(11,27,58,.35);
}
.btn--solid:hover{
  box-shadow:inset 0 0 0 1px rgba(11,27,58,.62);
  transform:translateY(-1px);
}
.btn--ghost{color:inherit;box-shadow:inset 0 0 0 1px currentColor}
.btn--ghost:hover{background:rgba(242,138,31,.16)}
.btn--line{color:var(--star);box-shadow:inset 0 0 0 1px rgba(45,108,223,.5)}
.btn--line:hover{background:rgba(45,108,223,.1)}
.btn--sm{padding:7px 13px;font-size:13px}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.link-more{
  display:inline-flex;align-items:center;gap:7px;
  font-weight:700;font-size:14px;color:var(--star);text-decoration:none;
}
.link-more::after{content:"→";transition:transform .2s var(--ease)}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 07 面板 · 网格 · Bento ---------- */
.panel{
  position:relative;
  background:#FFFDF8;
  box-shadow:inset 0 0 0 1px var(--stone);
  padding:24px;
}
.panel--soft{background:var(--peach);box-shadow:none}
.panel--ink{background:var(--ink);color:var(--paper-soft);box-shadow:none}
.panel--ink h2,.panel--ink h3,.panel--ink h4{color:#fff}
.panel--night{background:var(--night);color:var(--paper-soft);box-shadow:none}
.panel--night h2,.panel--night h3,.panel--night h4{color:#fff}
.panel--cut{
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}

.grid{display:grid;gap:var(--gap)}
.grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
@media (min-width:720px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1020px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
}

.bento{display:grid;gap:var(--gap);grid-template-columns:repeat(12,minmax(0,1fr))}
.bento>*{grid-column:span 12}
@media (min-width:720px){
  .bento>.b-half{grid-column:span 6}
  .bento>.b-third{grid-column:span 4}
  .bento>.b-focus{grid-column:span 8}
  .bento>.b-quarter{grid-column:span 3}
}

/* ---------- 08 轨迹与图形 ---------- */
.trajectory{
  position:relative;height:2px;margin:26px 0;
  background:linear-gradient(90deg,transparent,rgba(242,138,31,.6) 12%,rgba(255,197,61,.8) 50%,rgba(45,108,223,.5) 88%,transparent);
}
.trajectory::before,.trajectory::after{
  content:"";position:absolute;top:-3.5px;width:9px;height:9px;
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.trajectory::before{left:10%;background:var(--orange)}
.trajectory::after{right:10%;background:var(--star)}

/* ---------- 09 图片容器 ---------- */
.media{
  position:relative;display:block;overflow:hidden;
  background:linear-gradient(135deg,rgba(45,108,223,.12),rgba(242,138,31,.16) 58%,rgba(255,197,61,.2));
  box-shadow:inset 0 0 0 1px rgba(11,27,58,.09);
}
.media>img{display:block;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}
.media--tall{aspect-ratio:9/16}
.media--cut{
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.media--ink{
  background:linear-gradient(135deg,rgba(19,40,77,.94),rgba(11,27,58,.98));
  box-shadow:inset 0 0 0 1px rgba(247,242,232,.16);
}
.media__empty{
  position:absolute;inset:0;
  display:grid;place-items:center;
  padding:14px;text-align:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:rgba(11,27,58,.42);
}
.media--ink .media__empty{color:rgba(247,242,232,.52)}
.media__caption{
  margin:9px 0 0;
  font-family:var(--font-mono);font-size:12px;line-height:1.65;
  color:var(--ink-mute);
}

/* ---------- 10 数据块 ---------- */
.stat{display:flex;flex-direction:column;gap:2px}
.stat__num{
  font-family:var(--font-mono);font-size:26px;font-weight:700;line-height:1.15;
  color:var(--orange);
}
.stat__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--ink-mute)}
.section--ink .stat__label,.section--night .stat__label{color:rgba(247,242,232,.6)}

/* ---------- 11 面包屑 ---------- */
.crumbs{margin:22px 0 0}
.crumbs__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;margin:0;padding:0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
}
.crumbs__item{display:inline-flex;align-items:center;gap:8px;margin:0;color:var(--ink-mute)}
.crumbs__link{color:var(--star);text-decoration:none}
.crumbs__link:hover{text-decoration:underline}
.crumbs__sep{color:var(--stone)}

/* ---------- 12 头部 · 命令栏 ---------- */
.skip-link{
  position:absolute;left:12px;top:-70px;z-index:200;
  padding:10px 18px;
  background:var(--amber);color:#3A1C00;
  font-weight:800;font-size:14px;text-decoration:none;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--ink);
  color:var(--paper);
  box-shadow:0 1px 0 rgba(247,242,232,.14);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-condensed{
  box-shadow:0 8px 24px rgba(11,27,58,.34),0 1px 0 rgba(247,242,232,.14);
}
.cmdbar{
  position:relative;
  display:flex;align-items:center;gap:14px;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:12px 20px;
  transition:padding .25s var(--ease);
}
.site-header.is-condensed .cmdbar{padding-top:6px;padding-bottom:6px}

.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:inherit;text-decoration:none;flex:0 0 auto;
}
.brand__mark{
  display:grid;place-items:center;
  width:34px;height:34px;flex:none;
  font-family:var(--font-title);font-size:17px;font-weight:900;line-height:1;
  color:#3A1C00;
  background:linear-gradient(140deg,var(--amber),var(--orange));
  clip-path:polygon(22% 0,100% 0,100% 78%,78% 100%,0 100%,0 22%);
}
.brand__text{display:flex;flex-direction:column;gap:1px}
.brand__name{font-size:16px;font-weight:800;letter-spacing:.06em;line-height:1.2;color:#fff}
.brand__tag{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.28em;line-height:1.3;
  color:var(--amber);
}

.cmdnav{margin-left:auto}
.cmdnav__list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.cmdnav__item{margin:0}
.cmdnav__link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 11px;
  color:rgba(247,242,232,.76);
  font-size:14px;line-height:1.2;text-decoration:none;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.cmdnav__link:hover{color:#fff;background:rgba(247,242,232,.09)}
.cmdnav__idx{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;
  color:rgba(255,197,61,.68);
  transition:color .2s var(--ease);
}
.cmdnav__link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--amber));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .26s var(--ease);
}
.cmdnav__link[aria-current="page"]{color:#fff;background:rgba(242,138,31,.12)}
.cmdnav__link[aria-current="page"] .cmdnav__idx{color:var(--amber)}
.cmdnav__link[aria-current="page"]::after{transform:scaleX(1)}
.cmdnav__actions{display:none}

.cmdbar__actions{display:flex;align-items:center;gap:8px;margin-left:6px}

.navtoggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;
  padding:9px 13px;
  background:transparent;border:0;
  color:var(--paper);
  font-family:var(--font-body);font-size:14px;font-weight:700;
  cursor:pointer;
  box-shadow:inset 0 0 0 1px rgba(247,242,232,.34);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.navtoggle:hover{background:rgba(247,242,232,.1)}
.navtoggle__bars{display:grid;gap:4px;width:18px;flex:none}
.navtoggle__bar{display:block;height:2px;background:var(--amber);transition:transform .25s var(--ease),opacity .2s var(--ease)}
.navtoggle[aria-expanded="true"] .navtoggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.navtoggle[aria-expanded="true"] .navtoggle__bar:nth-child(2){opacity:0}
.navtoggle[aria-expanded="true"] .navtoggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.scrollline{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--orange),var(--amber) 40%,var(--jade) 72%,var(--star));
}

@media (min-width:1001px) and (max-width:1180px){
  .cmdnav__link{padding:8px 7px;font-size:13px}
  .cmdnav__idx{font-size:9px}
  .btn--sm{padding:7px 11px;font-size:12.5px}
}

@media (max-width:1000px){
  .cmdbar__actions{display:none}
  .navtoggle{display:inline-flex}
  .cmdnav{
    position:absolute;left:0;right:0;top:100%;
    margin:0;
    display:none;
    background:var(--night);
    border-top:1px solid var(--paper-line);
    box-shadow:0 20px 30px rgba(11,27,58,.36);
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .cmdnav[data-open]{display:block}
  .cmdnav__list{display:block;padding:6px 0}
  .cmdnav__item{border-bottom:1px solid rgba(247,242,232,.08)}
  .cmdnav__item:last-child{border-bottom:0}
  .cmdnav__link{
    display:flex;width:100%;
    padding:14px 20px;
    font-size:15px;
    border-radius:0;
  }
  .cmdnav__link::after{display:none}
  .cmdnav__link[aria-current="page"]{
    background:rgba(242,138,31,.16);
    box-shadow:inset 3px 0 0 var(--orange);
  }
  .cmdnav__actions{
    display:flex;gap:8px;
    padding:14px 20px 20px;
    border-top:1px solid var(--paper-line);
  }
  .cmdnav__actions .btn{flex:1 1 0}
}

/* ---------- 13 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--night);
  color:var(--paper-soft);
}
.site-footer::before{
  content:"";display:block;height:3px;
  background:linear-gradient(90deg,var(--orange),var(--amber) 30%,var(--jade) 64%,var(--star));
}
.footer__grid{
  display:grid;gap:30px;
  grid-template-columns:minmax(0,1fr);
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:44px 20px 32px;
}
.footer__brand{display:flex;flex-direction:column;gap:14px}
.footer__tagline{margin:0;font-size:14px;line-height:1.7;color:rgba(247,242,232,.66);max-width:34ch}
.brand--footer .brand__mark{width:30px;height:30px;font-size:15px}
.brand--footer .brand__name{font-size:15px}
.footer__title{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.16em;
  color:var(--amber);
}
.footer__col{min-width:0}
.footer__links{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer__item{margin:0}
.footer__link{
  display:inline-block;
  color:rgba(247,242,232,.8);font-size:14px;text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__link:hover{color:var(--amber);transform:translateX(3px)}
.footer__text{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em;
  color:rgba(247,242,232,.62);
  word-break:break-all;
}
.footer__meta{border-top:1px solid var(--paper-line)}
.footer__meta-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:18px 20px 32px;
  font-family:var(--font-mono);font-size:12px;
  color:rgba(247,242,232,.58);
}
.footer__stat{white-space:nowrap}
.footer__sep{color:rgba(247,242,232,.26)}

@media (min-width:680px){
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 28px}
  .footer__brand{grid-column:1 / -1}
}
@media (min-width:1040px){
  .footer__grid{grid-template-columns:1.6fr repeat(4,minmax(0,1fr));gap:30px 26px}
  .footer__brand{grid-column:auto}
}

/* ---------- 14 滚动显现 ---------- */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
.js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 15 焦点与减弱动态 ---------- */
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.site-footer :focus-visible,.section--ink :focus-visible,.section--night :focus-visible{outline-color:var(--orange)}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .js-reveal [data-reveal]{opacity:1 !important;transform:none !important}
  .btn--solid:hover,.footer__link:hover{transform:none}
}