/* ==========================================================================
   凤凰体育 · 共享样式 /assets/site.css
   色彩节奏：米白基底 → 深墨蓝黑分区 → 烈焰橙红强调 → 暗金编号 → 冰川蓝对照
   ========================================================================== */

:root{
  --ph-cream:#F4F0E8;
  --ph-cream-2:#EAE3D6;
  --ph-ink:#101014;
  --ph-night:#141C28;
  --ph-flame:#E8442B;
  --ph-flame-deep:#C0301A;
  --ph-ice:#4FA8D8;
  --ph-gold:#C89A3C;
  --ph-rock:#4A4A52;
  --ph-clay:#A8563A;
  --ph-moss:#6E7A55;

  --ph-hard:6px 6px 0 var(--ph-ink);
  --ph-hard-sm:4px 4px 0 var(--ph-ink);
  --ph-lift:8px 8px 0 rgba(16,16,20,.16);

  --ph-wrap:1240px;
  --ph-pill:999px;
  --ph-ease:cubic-bezier(.2,.7,.3,1);

  --ph-font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --ph-font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Heiti SC",system-ui,sans-serif;
  --ph-font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ph-cream);
  background-image:linear-gradient(180deg,rgba(79,168,216,.07),rgba(79,168,216,0) 340px);
  color:var(--ph-ink);
  font-family:var(--ph-font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{max-width:100%}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
a{color:var(--ph-flame-deep)}
button{font:inherit}
:focus-visible{outline:3px solid var(--ph-flame);outline-offset:3px;border-radius:4px}

/* ---------- 容器与网格 ---------- */
.ph-wrap{width:100%;max-width:var(--ph-wrap);margin:0 auto;padding:0 24px}
.ph-grid{display:grid;gap:22px}
.ph-grid--cards{grid-template-columns:repeat(auto-fit,minmax(258px,1fr))}
.ph-grid--split{grid-template-columns:minmax(0,var(--ph-split-a,38fr)) minmax(0,var(--ph-split-b,62fr));gap:40px;align-items:start}
.ph-section{padding:72px 0}
.ph-section__head{
  display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;
  padding-bottom:14px;margin-bottom:30px;
  border-bottom:2px solid var(--ph-ink);
}
.ph-section__num{
  font-family:var(--ph-font-mono);font-size:13px;letter-spacing:.24em;
  color:var(--ph-gold);text-transform:uppercase;padding-bottom:6px;
}
.ph-section__title{font-family:var(--ph-font-display);font-weight:900;font-size:32px;line-height:1.25;letter-spacing:-.02em}

/* ---------- 文字组件 ---------- */
.ph-lead{font-size:18px;line-height:1.85;color:var(--ph-rock);max-width:34em}
.ph-prose{max-width:38em;font-size:16.5px;line-height:1.8}
.ph-prose p{margin:0 0 1.1em}
.ph-prose p:last-child{margin-bottom:0}
.ph-mono{font-family:var(--ph-font-mono);font-variant-numeric:tabular-nums}
.ph-anno{
  display:block;writing-mode:vertical-rl;font-family:var(--ph-font-mono);
  font-size:11px;letter-spacing:.32em;text-transform:uppercase;color:var(--ph-gold);
}
.ph-label{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border:2px solid var(--ph-ink);border-radius:4px;
  background:var(--ph-cream);color:var(--ph-ink);
  font-family:var(--ph-font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  box-shadow:3px 3px 0 var(--ph-gold);
}
.ph-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;
  border:1px solid var(--ph-gold);border-radius:var(--ph-pill);
  font-family:var(--ph-font-mono);font-size:11px;letter-spacing:.18em;
  color:var(--ph-gold);white-space:nowrap;
}
.ph-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ph-flame)}
.ph-divider{border:0;border-top:2px solid var(--ph-ink);margin:40px 0}
.ph-divider--gold{border-top-color:var(--ph-gold)}

/* ---------- 面包屑 ---------- */
.ph-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--ph-font-mono);font-size:12.5px;letter-spacing:.08em;
  color:var(--ph-rock);margin:0 0 20px;
}
.ph-crumb__link{color:var(--ph-rock);text-decoration:none;border-bottom:1px solid rgba(74,74,82,.45)}
.ph-crumb__link:hover{color:var(--ph-flame-deep);border-bottom-color:var(--ph-flame-deep)}

/* ---------- 按钮与标签 ---------- */
.ph-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:2px solid var(--ph-ink);border-radius:var(--ph-pill);
  font-family:var(--ph-font-body);font-size:14px;font-weight:800;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;box-shadow:var(--ph-hard-sm);
  transition:transform .18s var(--ph-ease),box-shadow .18s var(--ph-ease),background .2s,color .2s;
}
.ph-btn--flame{background:linear-gradient(135deg,var(--ph-flame),var(--ph-flame-deep) 72%);color:var(--ph-cream)}
.ph-btn--ghost{background:transparent;color:var(--ph-ink)}
.ph-btn--ice{background:var(--ph-ice);color:var(--ph-ink)}
.ph-btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--ph-ink)}
.ph-btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ph-ink)}
.ph-btn--block{width:100%}

.ph-tag-list{display:flex;flex-wrap:wrap;gap:10px}
.ph-tag{
  display:inline-block;padding:5px 13px;border:2px solid var(--ph-ink);border-radius:var(--ph-pill);
  background:transparent;color:var(--ph-ink);font-size:12.5px;font-weight:700;text-decoration:none;
  transition:background .2s var(--ph-ease),color .2s var(--ph-ease),transform .2s var(--ph-ease);
}
.ph-tag:hover{background:var(--ph-ink);color:var(--ph-cream);transform:translateY(-2px)}
.ph-tag[aria-pressed="true"]{background:var(--ph-flame);border-color:var(--ph-flame-deep);color:var(--ph-cream)}

/* ---------- 卡片 ---------- */
.ph-card{
  position:relative;background:var(--ph-cream);
  border:2px solid var(--ph-ink);border-radius:16px;padding:24px;
  box-shadow:var(--ph-hard);
  transition:transform .22s var(--ph-ease),box-shadow .22s var(--ph-ease);
}
.ph-card:hover{transform:translate(-3px,-3px);box-shadow:10px 10px 0 var(--ph-ink)}
.ph-card__title{margin:0 0 10px;font-family:var(--ph-font-display);font-size:20px;font-weight:900;line-height:1.35;letter-spacing:-.01em}
.ph-card--dark{background:var(--ph-night);border-color:var(--ph-night);color:var(--ph-cream)}
.ph-card--dark .ph-card__title{color:var(--ph-cream)}
.ph-card--dark:hover{box-shadow:10px 10px 0 var(--ph-flame)}

/* ---------- 图片容器（页面阶段放占位图） ---------- */
.ph-media{
  position:relative;display:block;overflow:hidden;
  border:2px solid var(--ph-ink);border-radius:14px;
  background:linear-gradient(135deg,var(--ph-night),#1d2a3d 60%,var(--ph-flame-deep));
  box-shadow:var(--ph-hard);aspect-ratio:16/10;margin:0;
}
.ph-media__img{display:block;width:100%;height:100%;object-fit:cover}
.ph-media__cap{
  position:absolute;left:0;right:0;bottom:0;padding:12px 16px;
  background:linear-gradient(0deg,rgba(16,16,20,.92),rgba(16,16,20,0));
  color:var(--ph-cream);font-size:12.5px;letter-spacing:.05em;
}
.ph-media--wide{aspect-ratio:21/9}
.ph-media--tall{aspect-ratio:3/4}
.ph-media--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),calc(100% - 36px) 100%,0 100%)}

/* ---------- 显现动效 ---------- */
.ph-js .ph-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ph-ease),transform .6s var(--ph-ease)}
.ph-js .ph-reveal.is-in{opacity:1;transform:none}

/* ==========================================================================
   页头：悬浮胶囊导航浮岛
   ========================================================================== */
.ph-skip{
  position:absolute;left:16px;top:-70px;z-index:200;
  padding:10px 18px;border-radius:0 0 12px 12px;
  background:var(--ph-ink);color:var(--ph-cream);font-weight:800;text-decoration:none;
  transition:top .2s var(--ph-ease);
}
.ph-skip:focus{top:0}

.ph-header{position:sticky;top:0;z-index:80;padding:14px 16px 0;transition:padding .3s var(--ph-ease)}
.ph-progress{position:absolute;left:0;right:0;top:0;height:3px;background:rgba(16,16,20,.12);overflow:hidden}
.ph-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--ph-flame),var(--ph-gold) 52%,var(--ph-ice));
}
.ph-header__inner{
  position:relative;max-width:var(--ph-wrap);margin:0 auto;
  display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 16px;
  background:rgba(244,240,232,.86);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:2px solid var(--ph-ink);border-radius:var(--ph-pill);
  box-shadow:var(--ph-hard-sm);
  transition:max-width .35s var(--ph-ease),padding .3s var(--ph-ease),background .3s var(--ph-ease),box-shadow .3s var(--ph-ease);
}
.ph-header[data-scrolled] .ph-header__inner{
  max-width:1080px;padding:7px 10px 7px 14px;
  background:rgba(244,240,232,.96);
  box-shadow:0 0 0 rgba(16,16,20,0);
}

/* 品牌 */
.ph-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ph-ink);flex:0 0 auto}
.ph-mark{
  display:grid;place-items:center;width:38px;height:38px;flex:0 0 auto;
  border:2px solid var(--ph-ink);border-radius:12px;
  background:linear-gradient(135deg,var(--ph-flame),var(--ph-flame-deep) 56%,var(--ph-gold));
  box-shadow:3px 3px 0 var(--ph-ink);
  transition:transform .3s var(--ph-ease);
}
.ph-mark svg{width:20px;height:20px;fill:var(--ph-cream);display:block}
.ph-brand:hover .ph-mark{transform:rotate(-8deg) translateY(-2px)}
.ph-brand__text{display:flex;flex-direction:column;line-height:1.15}
.ph-brand__name{font-family:var(--ph-font-display);font-weight:900;font-size:17px;letter-spacing:.02em;color:var(--ph-ink)}
.ph-brand__sub{font-family:var(--ph-font-mono);font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:var(--ph-rock)}

/* 导航 */
.ph-nav{flex:1 1 auto;display:flex;align-items:center;justify-content:center;min-width:0}
.ph-nav__list{display:flex;align-items:center;gap:4px}
.ph-nav__item{display:block}
.ph-nav__link{
  display:inline-block;padding:8px 13px;border:2px solid transparent;border-radius:var(--ph-pill);
  color:var(--ph-ink);text-decoration:none;font-size:14px;font-weight:700;white-space:nowrap;
  transition:background .2s var(--ph-ease),border-color .2s var(--ph-ease),color .2s var(--ph-ease),transform .2s var(--ph-ease);
}
.ph-nav__link:hover{border-color:var(--ph-gold);background:rgba(200,154,60,.14);transform:translateY(-1px)}
.ph-nav__link[aria-current="page"]{border-color:var(--ph-gold);background:var(--ph-ink);color:var(--ph-cream)}
.ph-nav__note{display:none}
.ph-nav__foot{display:none}

/* 右侧动作 */
.ph-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.ph-quick{
  padding:6px 10px;border-radius:var(--ph-pill);text-decoration:none;
  font-size:13px;font-weight:700;color:var(--ph-rock);
  transition:color .2s var(--ph-ease),background .2s var(--ph-ease);
}
.ph-quick:hover{color:var(--ph-flame-deep);background:rgba(232,68,43,.12)}

/* 汉堡按钮 */
.ph-burger{
  display:none;position:relative;width:46px;height:40px;padding:0;
  border:2px solid var(--ph-ink);border-radius:14px;background:var(--ph-cream);
  box-shadow:3px 3px 0 var(--ph-ink);cursor:pointer;
}
.ph-burger__line{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--ph-ink);
  transition:transform .25s var(--ph-ease),opacity .2s var(--ph-ease);
}
.ph-burger__line:nth-child(1){top:13px}
.ph-burger__line:nth-child(2){top:19px}
.ph-burger__line:nth-child(3){top:25px}
.ph-burger[aria-expanded="true"] .ph-burger__line:nth-child(1){transform:translateY(6px) rotate(45deg)}
.ph-burger[aria-expanded="true"] .ph-burger__line:nth-child(2){opacity:0}
.ph-burger[aria-expanded="true"] .ph-burger__line:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ==========================================================================
   页脚：深墨蓝黑展台下沿
   ========================================================================== */
.ph-footer{
  position:relative;margin-top:96px;padding-top:4px;
  background:var(--ph-night);color:var(--ph-cream);
  border-top:3px solid var(--ph-ink);overflow:hidden;
}
.ph-footer__flare{
  position:absolute;right:-8%;bottom:-46%;left:38%;height:360px;pointer-events:none;
  background:radial-gradient(58% 100% at 30% 100%,rgba(232,68,43,.42),rgba(232,68,43,0) 72%);
}
.ph-footer__inner{
  position:relative;max-width:var(--ph-wrap);margin:0 auto;
  padding:64px 24px 40px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px 28px;
}
.ph-foot-col{position:relative;padding-left:34px}
.ph-foot-col__body{min-width:0}
.ph-foot-col__title{
  display:inline-block;margin-bottom:16px;padding-bottom:7px;
  border-bottom:2px solid var(--ph-gold);
  font-family:var(--ph-font-display);font-size:15px;font-weight:800;letter-spacing:.08em;color:var(--ph-cream);
}
.ph-brand--foot{margin-bottom:2px}
.ph-brand--foot .ph-brand__name{color:var(--ph-cream)}
.ph-brand--foot .ph-brand__sub{color:rgba(244,240,232,.55)}
.ph-foot__pitch{margin:18px 0 16px;max-width:26em;font-size:14px;line-height:1.9;color:rgba(244,240,232,.74)}
.ph-foot-links{display:flex;flex-direction:column;gap:9px}
.ph-foot-link{
  display:inline-block;color:rgba(244,240,232,.8);text-decoration:none;font-size:14px;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ph-ease),transform .2s var(--ph-ease),border-color .2s var(--ph-ease);
}
.ph-foot-link:hover{color:var(--ph-flame);transform:translateX(4px);border-bottom-color:var(--ph-gold)}
.ph-foot-contact{display:flex;flex-direction:column;gap:14px}
.ph-foot-meta{
  display:block;font-family:var(--ph-font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ph-gold);
}
.ph-foot-value{display:block;font-size:14px;line-height:1.7;color:rgba(244,240,232,.86);word-break:break-word}
.ph-footer__base{
  position:relative;max-width:var(--ph-wrap);margin:0 auto;
  padding:20px 24px 44px;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  border-top:1px solid rgba(200,154,60,.34);
  font-size:13px;color:rgba(244,240,232,.66);
}
.ph-foot__copy{margin:0}
.ph-legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.ph-legal__link{
  color:rgba(244,240,232,.72);text-decoration:none;border-bottom:1px solid transparent;
  transition:color .2s var(--ph-ease),border-color .2s var(--ph-ease);
}
.ph-legal__link:hover{color:var(--ph-flame);border-bottom-color:var(--ph-flame)}
.ph-foot__icp{margin:0 0 0 auto;font-family:var(--ph-font-mono);font-size:12px;letter-spacing:.06em}

/* 返回顶部 */
.ph-topbtn{
  position:fixed;right:20px;bottom:24px;z-index:70;
  display:inline-flex;flex-direction:column;align-items:center;gap:3px;
  width:60px;padding:11px 0;
  border:2px solid var(--ph-ink);border-radius:16px;
  background:var(--ph-cream);color:var(--ph-ink);
  box-shadow:var(--ph-hard-sm);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .25s var(--ph-ease),transform .25s var(--ph-ease),visibility .25s var(--ph-ease),background .2s var(--ph-ease),color .2s var(--ph-ease);
}
.ph-topbtn[data-visible]{opacity:1;visibility:visible;transform:none}
.ph-topbtn:hover{background:var(--ph-flame);color:var(--ph-cream)}
.ph-topbtn__arrow{font-size:17px;line-height:1}
.ph-topbtn__text{font-family:var(--ph-font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .ph-footer__inner{grid-template-columns:1fr 1fr;gap:36px 24px}
  .ph-grid--split{grid-template-columns:1fr;gap:28px}
  .ph-section{padding:60px 0}
  .ph-section__title{font-size:28px}
}

@media (max-width:920px){
  .ph-header{padding:10px 12px 0}
  .ph-header__inner{padding:9px 10px 9px 12px;gap:10px}
  .ph-header[data-scrolled] .ph-header__inner{max-width:100%}
  .ph-brand__sub{display:none}
  .ph-burger{display:block;margin-left:auto}
  .ph-actions .ph-quick{display:none}
  .ph-actions .ph-btn{padding:9px 15px;font-size:13px}

  .ph-nav{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:18px;max-height:min(72vh,540px);overflow:auto;
    background:var(--ph-night);border:2px solid var(--ph-ink);border-radius:22px;
    box-shadow:var(--ph-hard-sm);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s var(--ph-ease),transform .22s var(--ph-ease),visibility .22s var(--ph-ease);
  }
  .ph-nav[data-open]{opacity:1;visibility:visible;transform:translateY(0)}
  .ph-nav__note{
    display:block;margin-bottom:12px;
    font-family:var(--ph-font-mono);font-size:11px;letter-spacing:.24em;
    text-transform:uppercase;color:var(--ph-gold);
  }
  .ph-nav__list{flex-direction:column;align-items:stretch;gap:7px;width:100%}
  .ph-nav__link{
    display:block;padding:12px 14px;border:2px solid rgba(244,240,232,.18);
    border-radius:14px;color:var(--ph-cream);font-size:16px;
  }
  .ph-nav__link:hover{background:rgba(200,154,60,.16);border-color:var(--ph-gold);transform:none}
  .ph-nav__link[aria-current="page"]{background:var(--ph-flame);border-color:var(--ph-flame);color:var(--ph-cream)}
  .ph-nav__foot{display:block;margin-top:16px}

  .ph-footer{margin-top:70px}
  .ph-footer__inner{padding:52px 24px 32px}
}

@media (max-width:640px){
  body{font-size:15.5px}
  .ph-wrap{padding:0 18px}
  .ph-header{padding:8px 10px 0}
  .ph-brand__name{font-size:16px}
  .ph-mark{width:34px;height:34px}
  .ph-mark svg{width:18px;height:18px}
  .ph-actions .ph-btn{padding:8px 12px;font-size:12.5px;box-shadow:3px 3px 0 var(--ph-ink)}
  .ph-section{padding:48px 0}
  .ph-section__title{font-size:24px}
  .ph-lead{font-size:16.5px}
  .ph-media,.ph-media--wide{aspect-ratio:4/3}
  .ph-card{padding:20px}
  .ph-footer__inner{grid-template-columns:1fr;gap:30px;padding:44px 20px 26px}
  .ph-foot-col{padding-left:0;padding-top:8px}
  .ph-anno{writing-mode:horizontal-tb;margin-bottom:8px;letter-spacing:.24em}
  .ph-footer__base{padding:18px 20px 84px;font-size:12.5px}
  .ph-foot__icp{margin-left:0;width:100%}
  .ph-topbtn{right:14px;bottom:16px;width:52px;padding:9px 0}
}

/* ==========================================================================
   动效与无动画偏好
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .ph-js .ph-reveal{opacity:1;transform:none}
  .ph-progress__bar{transition:none}
  .ph-btn:hover,.ph-card:hover,.ph-tag:hover{transform:none}
}