*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:#283443;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}.wrap{max-width:1080px;margin:auto;padding:28px 18px}.wrap.wide{max-width:1380px}.top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}.brand{font-weight:800;font-size:22px}.muted{color:#7c8798}.card{background:#fff;border:1px solid #e1e7ef;border-radius:16px;padding:20px;box-shadow:0 6px 24px #0000000c}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.subject{min-height:180px;display:flex;flex-direction:column;justify-content:space-between}.subject h2{margin:8px 0}.tag{display:inline-block;padding:3px 9px;background:#edf3ff;color:#315a93;border-radius:999px;font-size:12px}.btn{display:inline-block;border:0;border-radius:9px;padding:10px 16px;background:#315a93;color:#fff;text-decoration:none;cursor:pointer;font-weight:700}.btn.light{background:#fff;color:#315a93;border:1px solid #315a93}.btn.danger{background:#b94b4b}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.stat{font-size:26px;font-weight:800}.smallstat{font-size:20px}.login{max-width:460px;margin:7vh auto}.field{margin:14px 0}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:5px}.field input,.field select,.row input{width:100%;padding:11px;border:1px solid #ccd6e3;border-radius:9px;font-size:15px}.row input{width:auto}.hint{font-size:12px;background:#fff8db;border:1px solid #eadb96;padding:10px;border-radius:8px;margin-top:12px;line-height:1.6}.error{color:#a92929;background:#fff0f0;border-color:#efb2b2}.ok{color:#207a43;background:#eefbf3;border-color:#bfe4cd}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:9px;border-bottom:1px solid #e8edf3;text-align:left;vertical-align:top}td button{margin:2px;padding:5px 7px;border:1px solid #cbd5e1;background:#fff;border-radius:6px;cursor:pointer}.table-wrap{overflow:auto}.pay-box{text-align:center;padding:34px}.price{font-size:30px;font-weight:800;margin:12px}.nav a{margin-left:10px;color:#315a93;text-decoration:none}.tabs{display:grid;grid-template-columns:1fr 1fr;background:#eef2f7;border-radius:10px;padding:4px;margin:18px 0}.tab{border:0;background:transparent;padding:9px;border-radius:8px;cursor:pointer;font-weight:700;color:#667085}.tab.active{background:#fff;color:#315a93;box-shadow:0 2px 8px #00000012}.qr-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:24px auto;max-width:620px}.qr-card{border:1px solid #e1e7ef;border-radius:14px;padding:16px}.qr-card h3{margin-top:0}.qr-card img{display:block;width:min(100%,260px);aspect-ratio:1/1;object-fit:contain;margin:0 auto 10px;border:1px dashed #cbd5e1;border-radius:10px;background:#fafafa}.activate-box{max-width:620px;margin:24px auto;text-align:left;border-top:1px solid #e5eaf0;padding-top:18px}.code-input{flex:1!important;min-width:260px;font-family:ui-monospace,Consolas,monospace;text-transform:uppercase}.code-result{width:100%;min-height:190px;margin-top:12px;border:1px solid #ccd6e3;border-radius:10px;padding:12px;font-family:ui-monospace,Consolas,monospace;line-height:1.6}.mono{font-family:ui-monospace,Consolas,monospace;white-space:nowrap}.card h3{margin-top:0}@media(max-width:650px){.top{align-items:flex-start;flex-direction:column}.nav a{margin:0 10px 0 0}.pay-box{padding:20px}.code-input{min-width:100%}.row input{width:100%}}


/* ===== V2.2 手机自适应 ===== */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{overflow-x:hidden}
button,a,input,select,textarea{touch-action:manipulation}
.btn{min-height:42px;display:inline-flex;align-items:center;justify-content:center}
.mobile-only{display:none!important}
.mobile-bottom-safe{padding-bottom:0}
@media(max-width:720px){
  body{background:#f4f7fb}
  .wrap,.wrap.wide{width:100%;max-width:none;padding:14px 12px 86px}
  .top{position:sticky;top:0;z-index:50;margin:-14px -12px 14px;padding:12px;background:rgba(245,247,251,.96);backdrop-filter:blur(10px);border-bottom:1px solid #e6ebf2;align-items:flex-start;flex-direction:column}
  .brand{font-size:19px;line-height:1.35}
  .nav{width:100%;display:flex;gap:7px;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch}
  .nav a{margin:0;flex:0 0 auto;padding:7px 10px;background:#fff;border:1px solid #dde5ef;border-radius:8px;font-size:13px}
  .card{border-radius:13px;padding:15px;box-shadow:0 3px 14px #0000000b}
  .grid{grid-template-columns:1fr;gap:12px}
  .subject{min-height:0;gap:13px}
  .subject .btn{width:100%}
  .stat{font-size:23px}.smallstat{font-size:18px;word-break:break-all}
  .login{max-width:none;margin:18px auto;padding:18px 16px}
  .field{margin:12px 0}
  .field input,.field select,.row input,textarea{font-size:16px;min-height:46px}
  .row{align-items:stretch;flex-direction:column;gap:8px}
  .row .btn,.row button{width:100%}
  .row input{width:100%!important;min-width:0!important}
  .between{align-items:stretch}
  .pay-box{padding:17px 13px;text-align:center}
  .price{font-size:26px}
  .qr-grid{grid-template-columns:1fr;max-width:360px;margin:18px auto;gap:12px}
  .qr-card{padding:12px}
  .qr-card img{width:min(100%,300px)}
  .activate-box{margin:18px auto;padding-top:15px}
  .code-input{min-width:0;width:100%;text-transform:uppercase}
  .code-result{min-height:150px;font-size:13px}
  .hint{font-size:12px;line-height:1.7}
  .tabs{position:sticky;top:75px;z-index:3}
  .table-wrap{overflow:visible}
  table.mobile-cards,table.mobile-cards thead,table.mobile-cards tbody,table.mobile-cards tr,table.mobile-cards th,table.mobile-cards td{display:block;width:100%}
  table.mobile-cards thead{display:none}
  table.mobile-cards tbody{display:grid;grid-template-columns:1fr;gap:10px}
  table.mobile-cards tr{background:#fafcff;border:1px solid #e1e7ef;border-radius:11px;padding:8px 11px}
  table.mobile-cards td{border:0;padding:6px 0 6px 42%;position:relative;min-height:31px;word-break:break-word}
  table.mobile-cards td::before{position:absolute;left:0;top:6px;width:39%;font-size:12px;font-weight:700;color:#7c8798;content:''}
  table.user-table td:nth-child(1)::before{content:'ID'}
  table.user-table td:nth-child(2)::before{content:'手机号'}
  table.user-table td:nth-child(3)::before{content:'剩余试用'}
  table.user-table td:nth-child(4)::before{content:'会员状态'}
  table.user-table td:nth-child(5)::before{content:'生成次数'}
  table.user-table td:nth-child(6)::before{content:'操作'}
  table.code-table td:nth-child(1)::before{content:'激活码'}
  table.code-table td:nth-child(2)::before{content:'状态'}
  table.code-table td:nth-child(3)::before{content:'备注'}
  table.code-table td:nth-child(4)::before{content:'绑定手机号'}
  table.code-table td:nth-child(5)::before{content:'生成时间'}
  table.code-table td:nth-child(6)::before{content:'操作'}
  table.usage-table td:nth-child(1)::before{content:'科目'}
  table.usage-table td:nth-child(2)::before{content:'页数'}
  table.usage-table td:nth-child(3)::before{content:'类型'}
  table.usage-table td:nth-child(4)::before{content:'时间'}
  table.mobile-cards td:last-child{padding-left:0;padding-top:31px;display:flex;flex-wrap:wrap;gap:5px}
  table.mobile-cards td:last-child::before{width:100%}
  table.mobile-cards td button{min-height:36px;margin:0;padding:6px 9px;flex:1 1 auto}
  .mono{white-space:normal;word-break:break-all}
  .mobile-only{display:flex!important}
  .mobile-sticky-actions{position:fixed;left:0;right:0;bottom:0;z-index:1000;padding:8px max(10px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left));background:rgba(255,255,255,.96);border-top:1px solid #dfe6ef;box-shadow:0 -5px 20px #00000012;gap:8px}
  .mobile-sticky-actions .btn{flex:1;padding:9px 7px;font-size:13px;text-align:center;text-decoration:none}
}

/* V2.3 激活码说明与后台发码 */
.text-link{color:#315a93;text-decoration:none;font-size:13px;font-weight:700}.admin-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:14px 0;padding:10px 12px;border-radius:10px;background:#f7f9fc;border:1px dashed #ccd6e3;font-size:13px}.admin-flow span{background:#fff;border:1px solid #e0e6ee;border-radius:999px;padding:5px 9px}.guide-wrap{max-width:820px}.guide-hero{text-align:center;margin-bottom:16px}.guide-hero h2{margin:10px 0}.guide-steps{display:grid;gap:12px}.guide-step{display:flex;gap:14px;align-items:flex-start}.guide-step h3{margin:1px 0 5px}.guide-step p{margin:0;line-height:1.7}.step-no{flex:0 0 36px;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#315a93;color:#fff;font-weight:800}.guide-warn,.guide-action{margin-top:16px}.guide-warn ul{margin:8px 0 0;padding-left:21px;line-height:1.9}.guide-action .row{justify-content:center}
@media(max-width:650px){.admin-flow{gap:5px}.admin-flow b{display:none}.admin-flow span{width:calc(50% - 4px);text-align:center}.guide-step{padding:16px 14px}.step-no{flex-basis:32px;width:32px;height:32px}.guide-hero h2{font-size:20px}}


/* ===== V2.4 付款 → 加客服微信 → 激活 测试流程 ===== */
.pay-flow-wrap{max-width:900px}.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:0 auto 20px;max-width:760px}.flow-steps span{font-size:12px;padding:8px 6px;border:1px solid #dbe3ee;border-radius:9px;background:#f7f9fc;color:#667085}.flow-steps span.active{background:#edf3ff;border-color:#9bb6dd;color:#315a93;font-weight:800}.payment-qr-grid{max-width:680px}.clean-qr-card{background:#fff}.clean-qr-card img{border:0!important;border-radius:4px!important;background:#fff!important;image-rendering:auto}.qr-tip{font-size:12px;color:#7c8798;line-height:1.6}.pay-next{display:grid;gap:9px;justify-items:center;margin:18px auto 6px;max-width:620px;padding:18px;border-radius:13px;background:#f7faff;border:1px solid #dbe7f5}.btn-large{font-size:16px;padding:13px 24px;min-width:280px}.service-wrap{max-width:760px}.service-card{text-align:center;padding:30px}.service-card h2{margin:10px 0 8px}.service-lead{max-width:600px;margin:0 auto 18px;line-height:1.8}.service-qr{width:min(92vw,420px);margin:18px auto;background:#fff;border-radius:16px;padding:10px;border:1px solid #e0e6ee}.service-qr img{display:block;width:100%;aspect-ratio:1/1;object-fit:contain}.service-message{max-width:480px;margin:16px auto;padding:14px;border-radius:12px;background:#f7f9fc;border:1px dashed #c8d4e3}.msg-title{font-size:12px;color:#7c8798;margin-bottom:5px}.msg-copy{font-size:18px;font-weight:800;color:#315a93}.guide-warn.compact{text-align:left;max-width:560px;margin:16px auto}.guide-warn.compact ol{line-height:1.9;margin-bottom:0}.service-actions{justify-content:center;margin-top:18px}
@media(max-width:720px){.flow-steps{grid-template-columns:1fr 1fr;gap:6px}.flow-steps span{font-size:11px;padding:7px 4px}.btn-large{width:100%;min-width:0}.service-card{padding:18px 13px}.service-qr{width:min(88vw,360px);padding:8px}.msg-copy{font-size:16px}.service-actions{align-items:stretch}}

/* ===== V3.1 套餐、协议、后台正式登录 ===== */
.plan-mini{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:0 0 16px;padding:12px 14px;border:1px solid #dbe5f1;background:#f8fbff;border-radius:12px;font-size:13px}.plan-mini span{font-weight:700}.plan-mini a{margin-left:auto;color:#315a93;font-weight:800;text-decoration:none}.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:620px;margin:20px auto}.plan-card{position:relative;border:2px solid #dde5ef;background:#fff;border-radius:14px;padding:18px;display:grid;gap:5px;text-align:center;cursor:pointer;color:#283443}.plan-card b{font-size:18px}.plan-card strong{font-size:29px;color:#315a93}.plan-card span{font-weight:700}.plan-card small{color:#7c8798}.plan-card.active{border-color:#315a93;box-shadow:0 0 0 3px #315a9314}.plan-card.recommend em{position:absolute;right:8px;top:8px;font-size:10px;background:#fff1d6;color:#9a6300;border-radius:999px;padding:3px 7px;font-style:normal}.pricing-grid.static .plan-card{cursor:default}.pricing-grid.static{grid-template-columns:repeat(3,1fr);max-width:none}.selected-pay{max-width:620px;margin:12px auto;padding:12px;border-radius:10px;background:#eef5ff;border:1px solid #c8dbf3}.selected-pay strong{font-size:20px;color:#315a93}.agree-line{display:block;font-size:12px;line-height:1.7;margin:12px 0;color:#667085}.agree-line input{width:auto;min-height:0;vertical-align:middle}.agree-line a,.legal-links a{color:#315a93}.legal-links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:20px auto 4px;font-size:12px}.legal-doc{line-height:1.85}.legal-doc h2{font-size:18px;margin-top:24px}.legal-note{padding:10px 12px;background:#fff8db;border:1px solid #eadb96;border-radius:9px}.admin-select{min-height:44px;padding:9px;border:1px solid #ccd6e3;border-radius:9px;background:#fff}.admin-warning:empty{display:none}.admin-warning{margin-bottom:16px}
@media(max-width:720px){.pricing-grid,.pricing-grid.static{grid-template-columns:1fr}.plan-mini a{margin-left:0;width:100%}.plan-card{padding:14px}.plan-card strong{font-size:25px}table.user-table.v25 td:nth-child(1)::before{content:'ID'}table.user-table.v25 td:nth-child(2)::before{content:'手机号'}table.user-table.v25 td:nth-child(3)::before{content:'剩余试用'}table.user-table.v25 td:nth-child(4)::before{content:'套餐'}table.user-table.v25 td:nth-child(5)::before{content:'到期时间'}table.user-table.v25 td:nth-child(6)::before{content:'生成次数'}table.user-table.v25 td:nth-child(7)::before{content:'操作'}table.code-table.v25 td:nth-child(1)::before{content:'激活码'}table.code-table.v25 td:nth-child(2)::before{content:'套餐'}table.code-table.v25 td:nth-child(3)::before{content:'金额'}table.code-table.v25 td:nth-child(4)::before{content:'状态'}table.code-table.v25 td:nth-child(5)::before{content:'备注'}table.code-table.v25 td:nth-child(6)::before{content:'绑定手机号'}table.code-table.v25 td:nth-child(7)::before{content:'生成时间'}table.code-table.v25 td:nth-child(8)::before{content:'操作'}}

.version-badge{display:inline-block;vertical-align:middle;margin-left:6px;padding:2px 7px;border-radius:999px;font-size:11px;font-weight:700;background:#eef3ff;color:#3b5ccc;border:1px solid #dbe5ff}

/* ===== V3.2 Dora原创资料库 ===== */
.library-entry-card{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #d9e4f3;background:linear-gradient(135deg,#fbfdff,#f4f8ff)}
.library-entry-card h2{margin:8px 0}.library-tag-main{background:#f1eaff;color:#6d45a5}.library-status-line{margin-top:10px;font-size:13px}.library-btn{white-space:nowrap}
.library-body{background:#f5f7fb}.library-wrap{max-width:1180px}.library-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;padding:18px 20px;background:#fff;border:1px solid #e1e7ef;border-radius:15px}
.library-access{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:15px 18px;margin-bottom:14px;border-radius:13px;border:1px solid #dbe5ef;background:#fff}.library-access>div{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.library-access.ok{background:#f2fbf5;border-color:#bfe5c9}.library-access.locked{background:#fff9ed;border-color:#eedaa7}
.library-filter{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr auto auto;gap:9px;padding:14px;background:#fff;border:1px solid #e1e7ef;border-radius:13px;margin-bottom:15px}.library-filter input,.library-filter select{min-height:42px;border:1px solid #ccd6e3;border-radius:9px;padding:8px 10px;background:#fff}
.library-list{display:grid;gap:12px}.lib-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:15px;align-items:center;background:#fff;border:1px solid #e1e7ef;border-radius:14px;padding:16px}.lib-icon{width:54px;height:54px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:28px;background:#f3f6fb}.lib-card h3{margin:0 0 7px;font-size:17px}.lib-card p{margin:8px 0;color:#5d6878;line-height:1.7}.lib-tags{display:flex;gap:6px;flex-wrap:wrap}.lib-tag{font-size:11px;padding:3px 7px;border-radius:999px;background:#eef3f8;color:#526174}.lib-meta{font-size:11px;color:#8a94a4;word-break:break-all}.lib-action .btn{min-width:110px}.empty-box{text-align:center;padding:50px 16px;color:#8993a2;background:#fff;border:1px dashed #cfd8e4;border-radius:14px}
.library-price-hero{max-width:520px;margin:16px auto;padding:18px;border:1px solid #dce5ef;border-radius:14px;background:#f8fbff;display:grid;gap:5px;text-align:center}.library-price-hero strong{font-size:34px;color:#315a93}.library-price-hero small{color:#707b8b}.copy-message{display:inline-block;margin:12px auto;padding:12px 16px;border-radius:10px;background:#f1f5fb;border:1px dashed #aebdd0;font-weight:800;color:#315a93}.library-upload-form{margin-top:14px}.admin-library-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.library-upload-form textarea{width:100%;border:1px solid #ccd6e3;border-radius:9px;padding:10px}
@media(max-width:720px){.library-entry-card,.library-top,.library-access{align-items:stretch;flex-direction:column}.library-entry-card .btn,.library-access .btn{width:100%}.library-filter{grid-template-columns:1fr}.lib-card{grid-template-columns:auto minmax(0,1fr)}.lib-action{grid-column:1/-1}.lib-action .btn{width:100%}.admin-library-grid{grid-template-columns:1fr}.library-price-hero strong{font-size:29px}
 table.user-table.v25 td:nth-child(4)::before{content:'生成器套餐'}table.user-table.v25 td:nth-child(5)::before{content:'生成器到期'}table.user-table.v25 td:nth-child(6)::before{content:'资料库'}table.user-table.v25 td:nth-child(7)::before{content:'生成次数'}table.user-table.v25 td:nth-child(8)::before{content:'操作'}
}

/* ===== V3.2.2 资料库大包/分类后台 ===== */
.library-subject{border-color:#ded6f0;background:linear-gradient(180deg,#fff,#fbf9ff)}
@media(max-width:720px){
 table.library-file-table td:nth-child(1)::before{content:'ID'}table.library-file-table td:nth-child(2)::before{content:'标题'}table.library-file-table td:nth-child(3)::before{content:'文件夹'}table.library-file-table td:nth-child(4)::before{content:'系列'}table.library-file-table td:nth-child(5)::before{content:'年级'}table.library-file-table td:nth-child(6)::before{content:'科目'}table.library-file-table td:nth-child(7)::before{content:'分类'}table.library-file-table td:nth-child(8)::before{content:'文件'}table.library-file-table td:nth-child(9)::before{content:'下载次数'}table.library-file-table td:nth-child(10)::before{content:'状态'}table.library-file-table td:nth-child(11)::before{content:'操作'}
 table.library-category-table td:nth-child(1)::before{content:'分类'}table.library-category-table td:nth-child(2)::before{content:'资料数'}table.library-category-table td:nth-child(3)::before{content:'操作'}
 table.library-folder-table td:nth-child(1)::before{content:'文件夹'}table.library-folder-table td:nth-child(2)::before{content:'资料数'}table.library-folder-table td:nth-child(3)::before{content:'大小'}table.library-folder-table td:nth-child(4)::before{content:'操作'}
}

/* V3.2.5 小类入口：选择系列＋中类后可直接点小类进入资料文件列表 */
.library-category-nav{margin:0 0 16px;padding:16px;background:#fff;border:1px solid #dbe5f1;border-radius:14px}.library-category-title{font-weight:700;margin-bottom:10px}.library-category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.library-category-card{display:block;padding:12px 14px;border:1px solid #cbd8ea;border-radius:10px;text-decoration:none;color:#163b70;background:#f8fbff}.library-category-card:hover{background:#eef5ff;border-color:#7ca3d8}@media(max-width:640px){.library-category-grid{grid-template-columns:1fr}}