/* ================================================================
   佰宝糖·开票登记系统 — 海洋风主题（青蓝渐变底 + 白圆角卡）
   设计语言对齐公司 PPT 模板：青蓝渐变底、白色圆角卡片、阿里妈妈方圆体
   移动端优先：44px 触控、大字号数字、卡片化、桌面限宽 520px
   ================================================================ */
:root{
  --ocean-1:#04324a; --ocean-2:#0a6a8f; --ocean-3:#17a2b8; --ocean-glow:#63d3de;
  --grad:linear-gradient(165deg,#05324a 0%,#0a5f86 42%,#159fb0 100%);
  --card:#ffffff; --card-2:#f4fbfd;
  --ink:#0c2b3a; --muted:#5d7a89; --line:#dfeef2;
  --accent:#0e8ea3; --accent-d:#0a6e80;
  --ok:#1f9d6b; --warn:#e08a2c; --danger:#e05a4d; --pending:#5b8aa0;
  --radius:18px; --radius-s:12px;
  --shadow:0 8px 24px rgba(6,44,64,.12);
  --font:"Alimama FangYuanTi VF","AlimamaFangYuanTiVF","阿里妈妈方圆体","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:var(--font); color:var(--ink);
  background:var(--grad); background-attachment:fixed;
  min-height:100vh; line-height:1.55; font-size:16px;
  -webkit-font-smoothing:antialiased;
}
/* 海底气泡（纯 CSS，营造海洋氛围，不影响触控） */
.bubbles{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.bubbles i{position:absolute;bottom:-40px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.5),rgba(255,255,255,.05));
  animation:rise linear infinite;opacity:.5}
@keyframes rise{0%{transform:translateY(0) scale(1);opacity:0}
  10%{opacity:.5}100%{transform:translateY(-110vh) scale(1.25);opacity:0}}
/* 顶部波浪 */
.wave{position:relative;z-index:1}
.wave svg{display:block;width:100%;height:46px}

.wrap{position:relative;z-index:2;max-width:520px;margin:0 auto;padding:0 16px 120px}
.wrap.wide{max-width:960px}

/* 头部横幅 */
.hero{padding:26px 18px 22px;color:#fff;text-align:center}
.hero h1{margin:0;font-size:24px;letter-spacing:1px;font-weight:800;
  text-shadow:0 2px 8px rgba(0,0,0,.18)}
.hero p{margin:8px 0 0;font-size:13px;opacity:.9;letter-spacing:.5px}
.hero .badge{display:inline-block;margin-top:12px;padding:5px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);font-size:12px;backdrop-filter:blur(4px)}

/* 卡片 */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:18px 16px;margin:14px 0}
.card h2{margin:0 0 4px;font-size:16px;display:flex;align-items:center;gap:8px}
.card h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.card .sub{margin:0 0 14px;font-size:12px;color:var(--muted)}

/* 表单 */
.field{margin:0 0 14px}
.field:last-child{margin-bottom:0}
label.lbl{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:600}
label.lbl .req{color:var(--danger);margin-left:2px}
input,textarea,select{
  width:100%;min-height:46px;border:1.5px solid var(--line);border-radius:var(--radius-s);
  background:#fbfeff;padding:11px 12px;font-size:16px;font-family:var(--font);color:var(--ink);
  transition:border-color .15s,box-shadow .15s;outline:none;appearance:none;
}
textarea{min-height:76px;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(14,142,163,.14);background:#fff}
input::placeholder,textarea::placeholder{color:#a9c0cb}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235d7a89' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:34px}
.hint{font-size:11px;color:var(--muted);margin-top:5px}

/* 分段选择 / 胶囊 */
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{flex:1;min-width:80px;min-height:46px;border:1.5px solid var(--line);background:#fbfeff;
  border-radius:var(--radius-s);font-size:14px;color:var(--muted);font-family:var(--font);cursor:pointer;
  transition:.15s;font-weight:600}
.seg button.on{border-color:var(--accent);background:linear-gradient(135deg,#0e8ea3,#17a2b8);color:#fff;box-shadow:0 4px 12px rgba(14,142,163,.28)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 14px;min-height:40px;border:1.5px solid var(--line);border-radius:999px;background:#fbfeff;
  font-size:13px;color:var(--muted);cursor:pointer;font-weight:600;display:flex;align-items:center;gap:5px}
.chip.on{border-color:var(--accent);background:rgba(14,142,163,.1);color:var(--accent-d)}
.chip .tick{display:none}
.chip.on .tick{display:inline}

/* 明细行 */
.item-row{display:grid;grid-template-columns:minmax(0,1fr) 84px 62px 30px;gap:6px;align-items:center;margin-bottom:8px}
.item-row input{min-height:44px;padding:9px 8px;font-size:15px}
input[type=number]{-moz-appearance:textfield}
input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.item-del{border:none;background:rgba(224,90,77,.12);color:var(--danger);width:30px;height:44px;border-radius:10px;font-size:18px;cursor:pointer;line-height:1;padding:0}
.add-item{width:100%;border:1.5px dashed var(--accent);background:rgba(14,142,163,.05);color:var(--accent-d);
  min-height:44px;border-radius:var(--radius-s);font-size:14px;font-weight:600;cursor:pointer;font-family:var(--font)}
.total-bar{display:flex;justify-content:space-between;align-items:center;margin-top:10px;padding-top:12px;border-top:1px dashed var(--line);font-size:14px;color:var(--muted)}
.total-bar b{font-size:22px;color:var(--accent-d)}

/* 按钮 */
.btn{width:100%;min-height:52px;border:none;border-radius:14px;font-size:17px;font-weight:700;
  font-family:var(--font);cursor:pointer;color:#fff;background:linear-gradient(135deg,#0a6e80,#17a2b8);
  box-shadow:0 8px 20px rgba(10,110,128,.32);transition:transform .08s,filter .15s;letter-spacing:1px}
.btn:active{transform:translateY(1px);filter:brightness(.96)}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--accent-d);border:1.5px solid var(--accent);box-shadow:none}
.btn.sm{min-height:42px;font-size:14px;border-radius:11px}
.btn.ok{background:linear-gradient(135deg,#1a7f56,#1f9d6b);box-shadow:0 6px 16px rgba(31,157,107,.3)}
.btn.danger{background:linear-gradient(135deg,#b8443a,#e05a4d);box-shadow:0 6px 16px rgba(224,90,77,.3)}
.btn-row{display:flex;gap:10px}
.btn-row .btn{flex:1}

/* 固定底栏（填写页） */
.footbar{position:fixed;left:0;right:0;bottom:0;z-index:20;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);padding:12px 16px calc(12px + env(safe-area-inset-bottom))}
.footbar .inner{max-width:520px;margin:0 auto}

/* 提示条 */
.alert{padding:12px 14px;border-radius:12px;font-size:13px;margin:12px 0;display:none}
.alert.show{display:block}
.alert.err{background:rgba(224,90,77,.1);color:#b8443a;border:1px solid rgba(224,90,77,.3)}
.alert.ok{background:rgba(31,157,107,.1);color:#1a7f56;border:1px solid rgba(31,157,107,.3)}

/* 成功页 */
.done{text-align:center;padding:40px 20px}
.done .ico{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#1a7f56,#1f9d6b);
  color:#fff;font-size:40px;line-height:80px;margin:0 auto 18px;box-shadow:0 10px 26px rgba(31,157,107,.4)}
.done h3{margin:0 0 6px;font-size:20px}
.reqno{display:inline-block;margin:16px 0;padding:14px 24px;background:var(--card-2);border:1.5px dashed var(--accent);
  border-radius:14px;font-size:22px;font-weight:800;color:var(--accent-d);letter-spacing:2px}
.done p{color:var(--muted);font-size:13px;margin:6px 0}

/* 状态标签 */
.tag{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.tag.pending{color:var(--pending);background:rgba(91,138,160,.14)}
.tag.processing{color:var(--warn);background:rgba(224,138,44,.14)}
.tag.invoiced{color:var(--ok);background:rgba(31,157,107,.14)}
.tag.rejected{color:var(--danger);background:rgba(224,90,77,.14)}

/* 加载 */
.center{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:70vh;color:#fff;text-align:center;padding:20px}
.spinner{width:42px;height:42px;border:4px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:16px}
@keyframes spin{to{transform:rotate(360deg)}}
a.link{color:var(--accent-d);text-decoration:underline;font-weight:600}