:root{
  --otb-brand:#1463FF;
  --otb-line:#E6EAF2;
  --otb-fg:#0F172A;
  --otb-muted:#667085;
  --otb-danger:#D92D20;
  --otb-bg:#FFFFFF;
  --otb-nav-bg:#111;
  --otb-nav-fg:#fff;
}

/* ====== 基础与小工具 ====== */
html,body{margin:0;padding:0}
*,*::before,*::after{box-sizing:border-box}
a{color:inherit}
.nm-mt{margin-top:12px}
.nm-mt-lg{margin-top:16px}
.nm-label{font-weight:700;font-size:.95rem;display:block;margin-top:6px}
.nm-inputwrap{position:relative}

/* ====== 桌面导航 ====== */
.otb-nav{width:100%;background:var(--otb-nav-bg);border-bottom:1px solid var(--otb-line)}
.otb-nav__inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 24px}
.otb-nav__brand{font-weight:900;font-size:20px}
.otb-nav__brand span{color:var(--otb-nav-fg);text-decoration:none}
.otb-nav__brand a{color:var(--otb-nav-fg);text-decoration:none}
.otb-nav__menu{display:flex;gap:24px;list-style:none;margin:0;padding:0}
.otb-nav__menu a{color:var(--otb-nav-fg);text-decoration:none;font-weight:600;opacity:.9}
.otb-nav__menu a:hover{opacity:1;text-decoration:underline}
.otb-nav__cta .otb-btn-ghost{border:1px solid var(--otb-nav-fg);color:var(--otb-nav-fg);padding:6px 12px;border-radius:8px;text-decoration:none;font-weight:700}
.otb-nav__cta .otb-btn-ghost:hover{background:rgba(255,255,255,.1)}

/* ====== 移动导航（汉堡 + 抽屉） ====== */
.otb-nav-mobile{display:none;background:var(--otb-nav-bg);border-bottom:1px solid var(--otb-line);position:relative;z-index:40}
@media (max-width: 979px){.otb-nav{display:none}.otb-nav-mobile{display:block}}
.otb-nav-m__bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.otb-nav-mobile .brand{color:var(--otb-nav-fg);font-weight:900;font-size:18px}
.hamburger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;border:none;background:transparent;gap:6px;cursor:pointer}
.hamburger span{width:22px;height:2px;background:var(--otb-nav-fg);display:block}
.hamburger.is-open span{background:#ccc}
.otb-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:39}
.otb-nav-mobile.is-open .otb-backdrop{opacity:1;pointer-events:auto}
.otb-drawer{position:fixed;top:0;right:0;width:80vw;max-width:320px;height:100vh;background:var(--otb-nav-bg);color:var(--otb-nav-fg);padding:20px;transform:translateX(100%);transition:transform .25s ease;z-index:40;display:flex;flex-direction:column;gap:8px}
.otb-drawer a{color:#fff;text-decoration:none;padding:12px;border-radius:6px;font-weight:600;opacity:.9}
.otb-drawer a:hover{background:rgba(255,255,255,.08);opacity:1}
.otb-drawer a.admin{border:1px solid rgba(255,255,255,.3);text-align:center}
.otb-nav-mobile.is-open .otb-drawer{transform:translateX(0)}
body.otb-no-scroll{overflow:hidden}

/* ====== 英雄区与两栏布局 ====== */
.nm-hero{padding:40px 0;background:linear-gradient(180deg,#F3F7FF,transparent)}
.nm-hero__inner{max-width:1100px;margin:0 auto;padding:0 20px}

/* 左侧自适应、右侧固定 550px */
.nm-split{display:grid;grid-template-columns:1fr 550px;gap:28px}
.nm-center{width:500px;margin: 0 auto;}
@media(max-width:979px){.nm-split{grid-template-columns:1fr}}

/* ====== 左侧图片 + 叠加文字 ====== */
.nm-illus-box{position:relative;margin-bottom:16px}
.nm-illus-img{width:100%;border-radius:12px;display:block}
.nm-illus-text{position:absolute;top:20%;left:10%;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.6)}
.nm-illus-text h2{font-size:24px;font-weight:900;margin:0 0 4px}
.nm-illus-text p{font-size:16px;margin:0}

/* 左侧文案 */
.nm-left__title{font-size:28px;font-weight:900;margin:0 0 8px}
.nm-left__lead{color:var(--otb-muted);margin-bottom:12px}
.nm-bullets{margin:0 0 16px;padding-left:1.1em}
.nm-bullets li{margin:6px 0}

/* Personas */
.otb-personas{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.persona{padding:6px 12px;border:1px solid var(--otb-line);border-radius:999px;background:#fff;cursor:pointer}
.persona.is-selected{border-color:var(--otb-brand);color:var(--otb-brand)}

/* ====== 右侧表单卡 ====== */
.nm-card{background:#fff;border:1px solid var(--otb-line);border-radius:12px;padding:20px}
.nm-search--right{width:100%;max-width:550px;margin:auto}

/* 芯片按钮：选中黑底白字 + 下划线 */
.nm-chips{display:flex;gap:10px;margin-bottom:10px}
.nm-chip{display:flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--otb-line);border-radius:999px;cursor:pointer;font-weight:600;background:#fff;color:var(--otb-fg);transition:all .2s ease}
.nm-chip input{display:none}
.nm-chip input:checked + span{background:#000;color:#fff;border-radius:999px;padding:4px 10px;border-bottom:2px solid #fff}

/* 下划线输入框（无背景） */
input[type="text"],input[type="email"],input[type="number"],input[type="datetime-local"],select{
  width:100%;height:40px;margin:6px 0;padding:6px 4px;border:none;border-bottom:2px solid var(--otb-line);border-radius:0;background:none;color:var(--otb-fg);font-size:1rem;outline:none;box-shadow:none
}
input:focus,select:focus{border-bottom:2px solid var(--otb-brand)}
::placeholder{color:#aaa;opacity:1}

/* 人数/荷物 紧凑一行（_ 分隔） */
.nm-row-compact{display:flex;align-items:center;gap:6px;margin-top:8px}
.nm-label-inline{display:flex;flex-direction:column;font-size:.9rem;font-weight:700}
.nm-label-inline input{width:60px;text-align:center;margin-top:2px}
.nm-row-compact .sep{font-weight:bold;color:#444}

/* 提示与错误 */
.nm-help{color:var(--otb-muted);font-size:.9rem;margin-top:4px}
.field-error{color:var(--otb-danger);font-size:.9rem;margin-top:4px}

/* 价格与按钮 */
.nm-quote{margin-top:16px;padding:12px;border:1px solid var(--otb-line);border-radius:10px;background:#f7faff;display:flex;justify-content:space-between;align-items:flex-end;gap:12px}
.nm-quote__price{font-size:24px;font-weight:900}
.nm-quote__note{color:var(--otb-muted);font-size:.9rem}
.nm-actions{display:flex;gap:10px;margin-top:16px}
.nm-btn{flex:1;height:40px;border-radius:10px;font-size:.95rem;cursor:pointer}
.nm-btn--primary{background:var(--otb-brand);color:#fff;border:none}
.nm-btn--ghost{background:#fff;color:var(--otb-brand);border:1px solid var(--otb-brand)}

/* ====== 步骤条（底部） ====== */
.otb-steps{display:flex;align-items:center;gap:10px;margin:22px 0 12px}
.otb-steps .sep{flex:1;height:2px;background:#E6EAF2}
.otb-steps .step{font-weight:800;color:#98A2B3}
.otb-steps .step.is-active{color:var(--otb-fg)}
.otb-steps--bottom{justify-content:center}

/* ====== 说明图片：自适应栅格 + 小间距 + 懒加载骨架 ====== */
.nm-gallery{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:12px;
}
.nm-g-item{
  background:#fff;border:1px solid var(--otb-line);border-radius:12px;overflow:hidden;position:relative;display:flex;flex-direction:column;
}
/* 骨架屏（shimmer） */
.nm-g-skeleton{
  height:140px;
  background:linear-gradient(90deg,#F6F7F9 0%,#ECEFF3 50%,#F6F7F9 100%);
  background-size:200% 100%;
  animation:nmShimmer 1.2s linear infinite;
}
@keyframes nmShimmer{
  0%{ background-position:200% 0 }
  100%{ background-position:-200% 0 }
}
/* 图片与插画 */
.nm-g-img{width:100%;height:140px;object-fit:cover;display:block}
.nm-g-item--icon .nm-g-skeleton{display:none}
.nm-g-item--icon .nm-g-icon{height:140px;display:flex;align-items:center;justify-content:center;background:#F7FAFF}
.nm-g-item--icon .nm-g-icon .svg{width:72px;height:72px}
/* 文案 */
.nm-g-item figcaption{padding:8px 10px;font-size:.9rem;color:var(--otb-fg)}

/* ====== 页脚 ====== */
.otb-footer{border-top:1px solid var(--otb-line);background:#fff;margin-top:36px}
.otb-footer__inner{max-width:1100px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.otb-footer .brand{font-weight:900;color:var(--otb-fg)}
.otb-footer nav{display:flex;gap:16px;flex-wrap:wrap}
.otb-footer nav a{color:var(--otb-muted);text-decoration:none}
.otb-footer nav a:hover{color:var(--otb-fg);text-decoration:underline}
.otb-footer .copy{color:#98A2B3;font-size:.9rem}
/* Definition List in cards------如果你想让 dl 列表更规整 */
.otb-dl{margin:0}
.otb-dl .row{
  display:grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  padding:8px 0;
  border-bottom:1px solid var(--otb-line);
}
.otb-dl .row:last-child{border-bottom:none}
.otb-dl dt{color:#667085;font-weight:700}
.otb-dl dd{margin:0}
.otb-dl .total dd.price{font-size:22px;font-weight:900;color:#0F172A}
/* Gallery: 更稳的缩略图表现 */
.nm-g-item { background:#fff; }
.nm-g-img { display:block; width:100%; height:auto; }
.nm-g-item figcaption {
  padding: 8px 10px;
  font-weight: 500;
  color: var(--otb-fg);
}

#goConfirm:disabled {
  background-color: #ccc;   /* 灰色背景 */
  color: #666;              /* 灰色文字 */
  cursor: not-allowed;      /* 鼠标变禁止符号 */
}