/* ============================================================
   赢商书苑 · 统一设计系统 (shuyuan.css)
   视觉语言参照 ops.yushinfo.com/seven：
   宣纸米底 + 深林绿 + 黄铜金；厚重 Songti 衬线标题；
   纸纹噪点；金线装饰；卡片化精排；进度 / 徽章可视化。
   ============================================================ */
:root{
  --paper:#fbf8f0;
  --paper-2:#f4efe6;
  --paper-3:#f8f5ee;
  --panel:#fffdf6;
  --ink:#20271f;          /* 深墨绿黑 */
  --ink-soft:#3c463a;
  --green:#254f3b;
  --green-deep:#173f30;
  --green-soft:#6c8562;
  --gold:#c59851;
  --gold-light:#d8b682;
  --gold-soft:#f7d797;
  --line:#d9d1c0;         /* 暖色描边 */
  --line-soft:#e7e0d0;
  --muted:#7b8378;
  --danger:#b4524a;
  --serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --radius:16px;
  --shadow:0 18px 40px -22px rgba(23,63,48,.45);
  --shadow-sm:0 8px 20px -14px rgba(23,63,48,.4);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  overflow-x:hidden;
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 12% 6%, rgba(255,255,255,.9), transparent 30%),
    radial-gradient(circle at 88% 0%, rgba(247,215,151,.18), transparent 36%),
    linear-gradient(180deg, var(--paper-3) 0%, var(--paper) 100%);
  background-attachment:fixed;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
/* 纸纹噪点叠加 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}
.sy-wrap{position:relative;z-index:1}

a{color:inherit;text-decoration:none}
img{max-width:100%}

/* ===== 页头 ===== */
.sy-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(10px);
  background:linear-gradient(180deg, rgba(251,248,240,.96), rgba(251,248,240,.82));
  border-bottom:1px solid var(--line-soft);
}
.sy-header-inner{
  position:relative;
  max-width:1120px;margin:0 auto;padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.sy-brand{display:flex;align-items:center;gap:12px}
.sy-seal{
  width:42px;height:42px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 35% 30%, var(--green-soft), var(--green-deep));
  border:1.5px solid var(--gold);
  color:var(--gold-soft);font-family:var(--serif);font-size:22px;font-weight:700;
  box-shadow:0 0 0 3px rgba(197,152,81,.16);
}
.sy-brand-txt b{font-family:var(--serif);font-size:19px;letter-spacing:.14em;color:var(--green-deep);display:block;line-height:1.1}
.sy-brand-txt span{font-size:11px;letter-spacing:.32em;color:var(--gold);text-transform:uppercase}
.sy-nav{display:flex;align-items:center;gap:26px}
.sy-nav a{font-size:14px;color:var(--ink-soft);letter-spacing:.06em;position:relative;padding:4px 0;transition:color .2s}
.sy-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold-light));transition:right .25s}
.sy-nav a:hover{color:var(--green-deep)}
.sy-nav a:hover::after{right:0}
.sy-auth-slot{display:flex;align-items:center;gap:10px}
/* 汉堡菜单（移动端显示） */
.sy-burger{
  display:none;border:none;background:none;cursor:pointer;line-height:1;
  font-size:24px;color:var(--green-deep);padding:4px 6px;border-radius:8px;
}
.sy-burger:hover{background:rgba(197,152,81,.12)}

/* ===== 按钮 ===== */
.sy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--sans);font-size:15px;font-weight:600;letter-spacing:.04em;
  padding:13px 26px;border-radius:999px;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.sy-btn:active{transform:translateY(1px)}
.sy-btn-primary{
  color:#fbf8f0;
  background:linear-gradient(135deg, var(--green) 0%, var(--green-deep) 100%);
  border-color:var(--gold);
  box-shadow:0 12px 26px -14px rgba(23,63,48,.7), inset 0 1px 0 rgba(255,255,255,.18);
}
.sy-btn-primary:hover{box-shadow:0 16px 30px -12px rgba(23,63,48,.8), inset 0 1px 0 rgba(255,255,255,.25);transform:translateY(-1px)}
.sy-btn-gold{
  color:var(--green-deep);
  background:linear-gradient(135deg, var(--gold-soft), var(--gold-light));
  border-color:var(--gold);
}
.sy-btn-gold:hover{transform:translateY(-1px)}
.sy-btn-ghost{
  color:var(--green-deep);background:transparent;border:1px solid var(--gold);
}
.sy-btn-ghost:hover{background:rgba(197,152,81,.12)}
.sy-btn-sm{padding:9px 18px;font-size:13px}

/* ===== Hero ===== */
.sy-hero{
  max-width:1120px;margin:0 auto;padding:70px 22px 40px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
}
.sy-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.34em;color:var(--gold);text-transform:uppercase;
  margin-bottom:18px;
}
.sy-kicker::before{content:"";width:30px;height:1px;background:var(--gold)}
.sy-title{
  font-family:var(--serif);font-weight:800;color:var(--green-deep);
  font-size:clamp(34px,5.2vw,58px);line-height:1.16;letter-spacing:.02em;margin:0 0 18px;
  text-shadow:0 1px 0 rgba(255,255,255,.6);
}
.sy-title em{font-style:normal;color:var(--gold);position:relative;white-space:nowrap}
.sy-title em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;background:linear-gradient(90deg,rgba(247,215,151,.55),rgba(216,182,130,.25));z-index:-1;border-radius:3px}
.sy-lead{font-size:16.5px;color:var(--ink-soft);max-width:46ch;margin:0 0 28px}
.sy-hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.sy-hero-art{
  position:relative;border-radius:22px;padding:30px;
  background:
    radial-gradient(circle at 80% 10%, rgba(247,215,151,.3), transparent 50%),
    linear-gradient(160deg, var(--green) 0%, var(--green-deep) 100%);
  box-shadow:var(--shadow);border:1px solid var(--gold);
  color:var(--paper);
  overflow:hidden;
}
.sy-hero-art::after{
  content:"";position:absolute;inset:0;opacity:.12;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m)'/%3E%3C/svg%3E");
}
.sy-hero-art .quote{position:relative;font-family:var(--serif);font-size:22px;line-height:1.7;color:var(--gold-soft)}
.sy-hero-art .src{position:relative;margin-top:16px;font-size:13px;letter-spacing:.2em;color:rgba(251,248,240,.7)}

/* ===== 区块 ===== */
.sy-section{max-width:1120px;margin:0 auto;padding:54px 22px}
.sy-sec-head{text-align:center;margin-bottom:38px}
.sy-sec-label{font-size:12px;letter-spacing:.34em;color:var(--gold);text-transform:uppercase}
.sy-sec-title{font-family:var(--serif);font-weight:800;color:var(--green-deep);font-size:clamp(26px,3.4vw,38px);margin:10px 0 8px;letter-spacing:.03em}
.sy-sec-sub{color:var(--muted);font-size:15px;max-width:60ch;margin:0 auto}
.sy-divider{display:flex;align-items:center;justify-content:center;gap:14px;margin:8px auto 0;color:var(--gold)}
.sy-divider::before,.sy-divider::after{content:"";height:1px;width:60px;background:linear-gradient(90deg,transparent,var(--gold))}
.sy-divider::after{background:linear-gradient(90deg,var(--gold),transparent)}
.sy-divider span{font-size:14px}

/* ===== 卡片 ===== */
.sy-grid{display:grid;gap:22px}
.sy-grid-3{grid-template-columns:repeat(3,1fr)}
.sy-grid-2{grid-template-columns:repeat(2,1fr)}
.sy-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .2s ease, box-shadow .25s ease, border-color .25s ease;
}
.sy-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg, var(--green), var(--green-soft));
  opacity:.0;transition:opacity .25s;
}
.sy-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--gold-light)}
.sy-card:hover::before{opacity:1}
.sy-card-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:24px;
  background:linear-gradient(150deg, rgba(197,152,81,.16), rgba(108,133,98,.16));
  border:1px solid var(--gold-light);margin-bottom:16px;
}
.sy-card-title{font-family:var(--serif);font-weight:700;font-size:20px;color:var(--green-deep);margin:0 0 8px;letter-spacing:.02em}
.sy-card-text{font-size:14.5px;color:var(--ink-soft);margin:0}

/* ===== 徽章 / 进度 ===== */
.sy-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:5px 12px;border-radius:999px;letter-spacing:.04em;
  background:rgba(108,133,98,.14);color:var(--green-deep);border:1px solid var(--line-soft);
}
.sy-badge.gold{background:rgba(197,152,81,.16);color:#8a6a2a;border-color:var(--gold-light)}
.sy-progress{height:10px;border-radius:999px;background:var(--line-soft);overflow:hidden;box-shadow:inset 0 1px 2px rgba(0,0,0,.06)}
.sy-progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-light),var(--gold));box-shadow:0 0 10px rgba(197,152,81,.5)}

/* ===== 门禁遮罩 / 弹层 ===== */
.sy-mask{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(23,39,31,.55);backdrop-filter:blur(3px);padding:20px;
}
.sy-mask.show{display:flex;animation:syfade .2s ease}
@keyframes syfade{from{opacity:0}to{opacity:1}}
.sy-modal{
  width:100%;max-width:440px;background:var(--panel);border:1px solid var(--gold-light);
  border-radius:20px;padding:30px;box-shadow:var(--shadow);position:relative;animation:syPop .26s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes syPop{from{transform:translateY(14px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.sy-modal h2{font-family:var(--serif);font-size:24px;color:var(--green-deep);margin:0 0 6px;letter-spacing:.03em}
.sy-modal .sub{color:var(--muted);font-size:13.5px;margin:0 0 20px}
.sy-modal .close{position:absolute;top:16px;right:18px;border:none;background:none;font-size:24px;color:var(--muted);cursor:pointer;line-height:1}
.sy-field{margin-bottom:14px}
.sy-field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px;letter-spacing:.04em}
.sy-input{
  width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink);font-size:15px;outline:none;transition:border-color .2s, box-shadow .2s;
}
.sy-input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(197,152,81,.16)}
.sy-tip{text-align:center;min-height:18px;margin:12px 0 0;font-size:13px;color:var(--gold)}
.sy-or{display:flex;align-items:center;gap:12px;margin:20px 0 16px;color:var(--muted);font-size:12px;letter-spacing:.2em}
.sy-or::before,.sy-or::after{content:"";flex:1;height:1px;background:var(--line)}
.sy-wx-btn{
  width:100%;justify-content:center;display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  padding:13px;border-radius:12px;border:1px solid var(--green-soft);background:rgba(108,133,98,.1);
  color:var(--green-deep);font-weight:600;font-size:15px;transition:background .2s;
}
.sy-wx-btn:hover{background:rgba(108,133,98,.2)}

/* ===== 心力测评弹窗（小程序接入） ===== */
.sy-test-modal{max-width:460px}
.sy-test-tip{font-size:13.5px;color:var(--muted);margin:0 0 14px}
.sy-test-qrbox{
  display:flex;align-items:center;justify-content:center;min-height:210px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:14px;
}
.sy-test-qrbox img{max-width:200px;height:auto;display:block}
.sy-test-ph{font-size:13px;color:var(--muted);text-align:center;padding:20px;line-height:1.6}
.sy-test-steps{font-size:13px;color:var(--ink-soft);text-align:center;line-height:1.9;margin:0 0 14px}
.sy-test-steps b{color:var(--gold)}
#launchWrap{display:block}
#launchWrap wx-open-launch-weapp{display:block;width:100%}

/* ===== 页脚 ===== */
.sy-footer{
  position:relative;z-index:1;margin-top:40px;border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg, rgba(251,248,240,.4), rgba(244,239,230,.7));
}
.sy-footer-inner{max-width:1120px;margin:0 auto;padding:40px 22px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.sy-footer .fb{display:flex;align-items:center;gap:12px}
.sy-footer .fb b{font-family:var(--serif);color:var(--green-deep);letter-spacing:.14em;font-size:17px}
.sy-footer .flinks{display:flex;gap:22px;flex-wrap:wrap}
.sy-footer .flinks a{font-size:13px;color:var(--muted);letter-spacing:.05em}
.sy-footer .flinks a:hover{color:var(--green-deep)}
.sy-footer .copy{width:100%;text-align:center;color:var(--muted);font-size:12px;letter-spacing:.08em;padding-top:18px;border-top:1px dashed var(--line-soft);margin-top:8px}

/* ===== 响应式 ===== */
@media(max-width:880px){
  .sy-hero{grid-template-columns:1fr;padding-top:44px}
  .sy-grid-3,.sy-grid-2{grid-template-columns:1fr}
  /* 导航收进汉堡下拉；汉堡与登录按钮贴近右侧 */
  .sy-burger{display:block;margin-left:auto}
  .sy-auth-slot{margin-left:0}
  .sy-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line-soft);
    box-shadow:var(--shadow-sm);padding:6px 0;
  }
  .sy-nav.open{display:flex;animation:syfade .18s ease}
  .sy-nav a{padding:14px 22px;font-size:15px;border-bottom:1px solid var(--line-soft)}
  .sy-nav a::after{display:none}
  .sy-nav a:last-child{border-bottom:none}
}
@media(max-width:520px){
  .sy-section{padding:40px 18px}
  .sy-header-inner{padding:12px 16px}
  .sy-btn{padding:12px 20px;font-size:14px}
  .sy-hero{padding:40px 18px 30px}
  .sy-hero-cta .sy-btn{width:100%}
  .sy-section .sy-card[style*="flex"]{flex-direction:column}
  /* 头部：手机端隐藏英文副标，品牌名收紧，避免与登录按钮挤撞 */
  .sy-brand-txt span{display:none}
  .sy-brand-txt b{font-size:17px;letter-spacing:.08em}
  /* Hero：手机端整体居中 */
  .sy-hero > div{text-align:center}
  .sy-kicker{justify-content:center}
  .sy-title em{white-space:normal}
  .sy-lead{margin:0 auto 26px}
  .sy-hero-cta{justify-content:center}
  .sy-hero-art .quote{font-size:19px}
  /* 页脚：窄屏居中排列 */
  .sy-footer-inner{justify-content:center;text-align:center}
  /* 登录/注册弹窗：手机端自适应居中 */
  .sy-mask{padding:12px;align-items:center;justify-content:center}
  .sy-modal{max-width:100%;padding:22px;border-radius:16px}
  .sy-modal h2{font-size:21px}
  .sy-modal .sub{font-size:13px;margin-bottom:16px}
  .sy-modal .close{top:12px;right:14px;font-size:22px}
  .sy-field{margin-bottom:12px}
  .sy-input{padding:12px 14px;font-size:16px} /* 16px 防止 iOS 聚焦放大 */
  .sy-or{margin:16px 0 14px}
  #syQrFrame{width:100%;height:300px;min-width:0;max-width:100%}
}

/* ============================================================
   浮层修复(全站):AI 智能客服按钮被「联系书童」自动弹窗遮挡
   原因:#ai-root(bottom:84px) 与 #kf-pop(向上展开184px) 重叠,
   kf-pop z-index 更高 → AI 按钮看不见。
   修复:调换位置 —— AI 按钮最底(18px),书童按钮上移(84px)。
   首页 v2.css 已含同款规则,此份保证 dushuhui 等页面同样生效。
   ============================================================ */
#ai-root{position:fixed;right:18px;bottom:18px !important}
#kf-root{position:fixed;right:18px;bottom:84px !important}
#kf-pop{bottom:66px !important}
@media(max-width:480px){
  #ai-root{right:12px;bottom:12px !important}
  #kf-root{right:12px;bottom:78px !important}
}