/* ============================================================
   Galgame游戏盒子（pro）单页官网样式
   方向：档案室 · 印刷台账
   冷白纸底 + 墨黑 + 深绯红，直角按钮、点线目录、样张条
   移动优先：375 起，640 / 900 / 1100 逐级扩展
   ============================================================ */

:root{
  --ink:#14171A;
  --ink-2:#4B5158;
  --ink-3:#7C848C;
  --paper:#F1F3F1;
  --white:#FFFFFF;
  --mist:#E7EBE8;
  --red:#B0223A;
  --red-dark:#8C162C;
  --line:rgba(20,23,26,.16);
  --line-soft:rgba(20,23,26,.09);
  --mono:"ui-monospace","SFMono-Regular","Consolas","Menlo","Courier New",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans CJK SC",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
ul{list-style:none}
button{font:inherit;cursor:pointer}

.wrap{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}

.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:var(--ink);color:#fff;padding:10px 16px;font-size:14px;text-decoration:none}
.skip:focus{left:8px}

section{scroll-margin-top:70px}
.toc,.ledger,.log,.shots,.quotes,.faq{padding-top:58px;padding-bottom:58px}

/* ============ 通用排印 ============ */
.kicker{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ink-3)}
.k-no{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:20px;border:1px solid var(--line);color:var(--ink);font-size:10.5px;letter-spacing:.06em}
.kicker-light{color:rgba(255,255,255,.62)}
.kicker-light .k-no{border-color:rgba(255,255,255,.34);color:#fff}

.h2{font-size:clamp(24px,5vw,38px);line-height:1.18;font-weight:800;letter-spacing:-.012em;text-wrap:balance}
.sec-head{display:grid;gap:10px;margin-bottom:26px}
.sec-sub{font-size:14px;color:var(--ink-2);max-width:48ch}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;border-radius:4px;font-size:15px;font-weight:700;text-decoration:none;border:1px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-1px)}
.btn-ghost{color:var(--ink);border-color:rgba(20,23,26,.34)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#C73049;transform:translateY(-1px)}

:focus-visible{outline:2px solid var(--red);outline-offset:3px}

/* ============ 页头 ============ */
.site-header{position:sticky;top:0;z-index:100;background:var(--paper);border-bottom:1px solid var(--line)}
.site-header.is-scrolled{border-bottom-color:rgba(20,23,26,.28)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand-mark{width:34px;height:34px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;overflow:hidden}
.brand-mark img{width:100%;height:100%;object-fit:cover}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}

.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:transparent;border:0;border-radius:3px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 20px 18px;flex-direction:column;gap:2px}
body.nav-open .site-nav{display:flex}
.site-nav a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:600;padding:11px 4px;border-bottom:1px solid var(--line-soft)}
.site-nav a:hover{color:var(--red)}
.nav-dl{margin-top:12px;background:var(--ink);color:#fff !important;text-align:center;border:0 !important;padding:12px 4px}
.nav-dl:hover{background:var(--red);color:#fff}

/* ============ 首屏 ============ */
.hero{position:relative;padding:40px 0 46px;border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(180deg,transparent 0 71px,rgba(20,23,26,.045) 71px 72px)}
.hero-title{margin:20px 0 24px;font-size:clamp(36px,10.4vw,80px);line-height:.98;font-weight:800;letter-spacing:-.022em;color:var(--ink)}
.hero-grid{display:grid;gap:26px}
.hero-copy{max-width:44ch}
.hero-lead{font-size:15px;color:var(--ink-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

.spec{border-top:1px solid var(--line);align-self:start}
.spec div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line)}
.spec dt{font-size:12.5px;color:var(--ink-3)}
.spec dd{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--ink);text-align:right}

.strip{display:flex;gap:12px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.strip::-webkit-scrollbar{display:none}
.strip-item{position:relative;flex:0 0 66%;scroll-snap-align:start}
.strip-no{position:absolute;top:8px;left:8px;z-index:2;background:var(--ink);color:#fff;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;padding:2px 6px}
.strip-item img{width:100%;height:auto;border:1px solid var(--line);background:#fff}
.strip-item figcaption{margin-top:9px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-3)}

/* ============ 题材目录 ============ */
.toc{background:var(--paper);border-bottom:1px solid var(--line)}
.toc-list{border-top:1px solid var(--line);margin-top:4px}
.toc-row{display:flex;align-items:baseline;gap:10px;padding:14px 4px;border-bottom:1px solid var(--line);transition:background .16s ease}
.toc-row:hover{background:var(--white)}
.toc-no{font-family:var(--mono);font-size:11px;color:var(--ink-3);flex:0 0 26px}
.toc-name{font-size:16.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.toc-desc{display:none;font-size:12.5px;color:var(--ink-3);white-space:nowrap}
.leader{flex:1 1 auto;min-width:18px;border-bottom:1px dotted rgba(20,23,26,.3);transform:translateY(-4px)}
.toc-count{font-family:var(--mono);font-size:11.5px;color:var(--ink-2);white-space:nowrap}

/* ============ 功能台账 ============ */
.ledger{background:var(--mist);border-bottom:1px solid var(--line)}
.ledger-grid{display:grid;gap:0}
.led-row{display:grid;grid-template-columns:30px minmax(0,1fr);gap:8px;padding:18px 0 20px;border-top:1px solid var(--line)}
.led-no{font-family:var(--mono);font-size:11px;color:var(--ink-3);padding-top:6px}
.led-row h3{font-size:16.5px;font-weight:800;letter-spacing:.02em}
.led-row p{grid-column:2;margin-top:4px;font-size:13.5px;color:var(--ink-2);max-width:34em}

/* ============ 更新记录 ============ */
.log{background:var(--paper)}
.log-list{border-top:1px solid var(--line)}
.log-item{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;padding:16px 2px;border-bottom:1px solid var(--line)}
.log-item time{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--ink-3);flex:0 0 auto}
.log-tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;border:1px solid var(--line);padding:1px 7px;color:var(--ink);background:var(--white)}
.log-item p{flex:1 1 100%;font-size:14px;color:var(--ink-2)}

/* ============ 界面样张 ============ */
.shots{background:var(--mist);border-bottom:1px solid var(--line)}
.shot-grid{display:grid;grid-template-columns:1fr;gap:26px;justify-items:center}
.shot-grid figure{position:relative;margin:0}
.shot-no{position:absolute;top:8px;left:8px;z-index:2;background:var(--ink);color:#fff;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;padding:2px 6px}
.shot-grid img{width:100%;max-width:300px;height:auto;border:1px solid var(--line);background:#fff}
.shot-grid figcaption{margin-top:10px;font-size:12.5px;color:var(--ink-2);max-width:300px}
.shot-note{margin-top:26px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-3)}

/* ============ 玩家留言 ============ */
.quotes{background:var(--paper);border-bottom:1px solid var(--line)}
.quote-list{display:grid;gap:24px}
.quote{border-top:2px solid var(--ink);padding-top:14px}
.quote p{font-size:15px;line-height:1.72;color:var(--ink)}
.quote footer{margin-top:12px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--ink-3)}

/* ============ 问答 ============ */
.faq{background:var(--paper)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;display:flex;align-items:center;gap:12px;padding:15px 2px;font-size:15.5px;font-weight:700;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-no{font-family:var(--mono);font-size:11px;color:var(--red);flex:0 0 24px;font-weight:400}
.faq-item summary::after{content:"+";margin-left:auto;font-family:var(--mono);font-size:17px;color:var(--ink-3);line-height:1}
.faq-item details[open] summary::after{content:"−"}
.faq-item p{padding:0 0 16px 36px;font-size:13.5px;color:var(--ink-2);max-width:62ch}

/* ============ 下载 ============ */
.cta{background:var(--ink);color:#fff;padding:56px 0 60px}
.cta-inner{display:grid;gap:14px;justify-items:start}
.cta-title{font-size:clamp(26px,5.4vw,44px);line-height:1.14;font-weight:800;letter-spacing:-.015em;color:#fff;text-wrap:balance;max-width:20ch}
.cta-desc{font-size:14.5px;color:rgba(255,255,255,.72);max-width:46ch}
.cta-actions{margin-top:8px}
.cta-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.cta-chips li{border:1px solid rgba(255,255,255,.24);padding:4px 12px;font-size:12px;color:rgba(255,255,255,.82)}

/* ============ 页脚 ============ */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding:24px 0}
.footer-inner{display:flex;flex-direction:column;gap:10px;font-size:12.5px;color:var(--ink-3)}
.site-footer .brand-name{font-size:14px;font-weight:700}
.site-footer .brand-mark{width:28px;height:28px}
.footer-slogan{letter-spacing:.08em}
.footer-copy{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em}

/* ============ 动效偏好 ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
}

/* ============ 640px ============ */
@media (min-width:640px){
  .toc-desc{display:inline}
  .strip-item{flex-basis:40%}
  .ledger-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:44px}
  .log-item{flex-wrap:nowrap;gap:14px}
  .log-item p{flex:1 1 auto;max-width:60ch}
  .shot-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;justify-items:stretch}
  .shot-grid img{max-width:100%}
  .shot-grid figcaption{max-width:100%}
  .quote-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .footer-inner{flex-direction:row;align-items:center;justify-content:space-between}
}

/* ============ 900px ============ */
@media (min-width:900px){
  .nav-toggle{display:none}
  .site-nav{display:flex;position:static;background:transparent;border:0;padding:0;flex-direction:row;align-items:center;gap:22px}
  .site-nav a{border:0;padding:6px 0;font-size:14px;font-weight:600}
  .site-nav a:hover{color:var(--red)}
  .nav-dl{margin-top:0;padding:10px 18px;font-size:14px;background:var(--ink)}
  .nav-dl:hover{background:var(--red)}
  .header-inner{min-height:70px}

  .hero{padding:60px 0 64px}
  .hero-title{margin:26px 0 30px;font-size:clamp(56px,6.6vw,80px)}
  .hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:start}
  .hero-copy{max-width:46ch}
  .spec{margin-top:2px}

  .strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;overflow:visible;margin-top:42px;padding-top:26px}
  .strip-item{flex:none}
  .strip-item img{max-width:320px}
  .strip-item figcaption{max-width:320px}

  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:56px}

  .quote-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
  .shot-grid{gap:28px}
  .cta{padding:72px 0 76px}
  section{scroll-margin-top:84px}
  .toc,.ledger,.log,.shots,.quotes,.faq{padding-top:72px;padding-bottom:72px}
}

/* ============ 1100px ============ */
@media (min-width:1100px){
  .wrap{padding-left:36px;padding-right:36px}
  .hero-lead{font-size:16px}
  .sec-sub{font-size:14.5px}
}