/* ====== Base ====== */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --primary:#4A6CF7;--primary-light:#EEF2FF;--primary-dark:#3B5BDB;
  --success:#22C55E;--success-light:#F0FDF4;
  --warning:#F59E0B;--warning-light:#FFFBEB;
  --danger:#EF4444;--danger-light:#FEF2F2;
  --gray-50:#F9FAFB;--gray-100:#F3F4F6;--gray-200:#E5E7EB;
  --gray-300:#D1D5DB;--gray-400:#9CA3AF;--gray-500:#6B7280;
  --gray-600:#4B5563;--gray-700:#374151;--gray-800:#1F2937;--gray-900:#111827;
  --radius:12px;--radius-sm:8px;
}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;background:var(--gray-50);color:var(--gray-800);line-height:1.6;font-size:15px;max-width:480px;margin:0 auto;min-height:100vh}
.page{display:none;padding:0 0 100px}
.page.active{display:block}

/* Header */
.header{background:linear-gradient(135deg,#4A6CF7,#6366F1);color:#fff;padding:20px 16px 24px;position:relative}
.header h1{font-size:20px;font-weight:600;margin-bottom:4px}
.header p{font-size:13px;opacity:.85}

/* Progress bar */
.progress-bar{position:sticky;top:0;z-index:100;background:#fff;padding:12px 16px;border-bottom:0.5px solid var(--gray-200)}
.progress-track{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:var(--primary);border-radius:3px;transition:width .3s}
.progress-text{font-size:12px;color:var(--gray-500);margin-top:6px;text-align:right}

/* Form sections */
.section{background:#fff;margin:12px 16px;border-radius:var(--radius);padding:16px;border:1px solid var(--gray-200)}
.section-title{font-size:16px;font-weight:600;color:var(--gray-900);margin-bottom:4px;display:flex;align-items:center;gap:8px}
.section-num{width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}
.section-desc{font-size:13px;color:var(--gray-500);margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-label{font-size:14px;font-weight:500;color:var(--gray-700);margin-bottom:8px;display:block}
.form-label .required{color:var(--danger);margin-left:2px}
.form-label .hint{font-weight:400;font-size:12px;color:var(--gray-400);margin-left:4px}
.form-hint{font-size:12px;color:var(--gray-400);margin-top:4px}

/* Inputs */
input[type="text"],textarea{width:100%;padding:10px 12px;border:1px solid var(--gray-300);border-radius:var(--radius-sm);font-size:15px;transition:border-color .2s;background:#fff;color:var(--gray-800)}
input[type="text"]:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(74,108,247,.1)}
textarea{resize:vertical;min-height:80px;font-family:inherit}

/* Checkbox group */
.checkbox-group{display:flex;flex-direction:column;gap:8px}
.checkbox-item{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid var(--gray-200);border-radius:var(--radius-sm);cursor:pointer;transition:all .15s}
.checkbox-item:active{background:var(--gray-50)}
.checkbox-item.selected{border-color:var(--primary);background:var(--primary-light)}
.checkbox-box{width:20px;height:20px;border:2px solid var(--gray-300);border-radius:4px;flex-shrink:0;display:flex;align-items:center;justify-content:center;margin-top:1px;transition:all .15s}
.checkbox-item.selected .checkbox-box{background:var(--primary);border-color:var(--primary)}
.checkbox-box svg{width:12px;height:12px;color:#fff;opacity:0;transition:opacity .15s}
.checkbox-item.selected .checkbox-box svg{opacity:1}
.checkbox-label{font-size:14px;color:var(--gray-700);flex:1}
.other-input{flex:1;min-width:60px;border:none;border-bottom:1px solid var(--gray-300);font-size:14px;padding:2px 4px;outline:none;background:transparent;color:var(--gray-800)}
.other-input:focus{border-bottom-color:var(--primary)}
.checkbox-other input{flex:1;margin-top:4px}

/* Buttons */
.btn{display:flex;align-items:center;justify-content:center;width:100%;padding:14px 24px;border-radius:var(--radius);font-size:16px;font-weight:600;border:none;cursor:pointer;transition:all .15s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:active{background:var(--primary-dark)}
.btn-outline{background:#fff;color:var(--primary);border:1.5px solid var(--primary)}
.btn-success{background:var(--success);color:#fff}
.btn-lg{padding:16px;font-size:17px}
.btn-sm{padding:10px 16px;font-size:14px;width:auto}
.btn-block{margin:16px}
.btn-disabled{opacity:.5;pointer-events:none}
.btn-group{display:flex;gap:12px;padding:16px}

/* Bottom nav */
.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;background:#fff;padding:12px 16px;border-top:1px solid var(--gray-200);display:flex;gap:12px;z-index:100;box-shadow:0 -2px 8px rgba(0,0,0,.04)}
.bottom-nav .btn{flex:1;padding:12px;font-size:15px;display:flex;align-items:center;justify-content:center}

/* Form navigation (3 buttons) */
.bottom-nav-form{padding:10px 12px;gap:8px}
.bottom-nav-form .btn-save{flex:0.8;border-color:var(--gray-300);color:var(--gray-600);background:var(--gray-50)}
.bottom-nav-form .btn-save:active{background:var(--gray-100);border-color:var(--gray-400)}
.bottom-nav-form .btn-outline{flex:0.8}
.bottom-nav-form .btn-primary{flex:1.2}

/* Loading / Generating */
.loading-page{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 16px;text-align:center;min-height:80vh}
.loading-spinner{width:48px;height:48px;border:4px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:20px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-title{font-size:18px;font-weight:600;color:var(--gray-900);margin-bottom:8px}
.loading-steps{text-align:left;margin-top:24px;width:100%;max-width:320px}
.loading-step{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:0.5px solid var(--gray-100);font-size:14px;color:var(--gray-500)}
.loading-step.done{color:var(--success)}
.loading-step.active{color:var(--primary);font-weight:500}
.loading-step .icon{width:20px;text-align:center;font-size:14px}

/* Report page */
.report-header{text-align:center;padding:32px 16px 24px}
.report-header h2{font-size:22px;font-weight:700;margin-bottom:4px}
.report-header .company{font-size:16px;color:var(--primary);margin-bottom:8px}
.report-header .date{font-size:13px;color:var(--gray-400)}
.report-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500;margin-bottom:12px}
.badge-free{background:var(--success-light);color:var(--success)}
.badge-locked{background:var(--gray-100);color:var(--gray-500)}
.badge-unlocked{background:var(--primary-light);color:var(--primary)}

.report-chapter{background:#fff;margin:12px 16px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--gray-200)}
.chapter-head{padding:14px 16px;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
.chapter-head h3{font-size:15px;font-weight:600}
.chapter-head .tag{font-size:12px;padding:2px 8px;border-radius:10px}
.tag-free{background:var(--success-light);color:var(--success)}
.tag-locked{background:var(--gray-100);color:var(--gray-500)}
.tag-unlocked{background:var(--primary-light);color:var(--primary)}
.chapter-body{padding:0 16px 16px;font-size:14px;color:var(--gray-600);line-height:1.8}

/* Blurred locked content */
.locked-blur{position:relative;filter:blur(5px);user-select:none;pointer-events:none}
.locked-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(255,255,255,.6);text-align:center;padding:20px}
.locked-icon{width:40px;height:40px;background:var(--gray-200);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:8px}

/* Pay modal */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:flex-end;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s}
.modal-mask.show{opacity:1;pointer-events:auto}
.modal-content{background:#fff;width:100%;max-width:480px;border-radius:16px 16px 0 0;padding:24px 20px 40px;transform:translateY(100%);transition:transform .3s}
.modal-mask.show .modal-content{transform:translateY(0)}
.modal-close{text-align:center;font-size:13px;color:var(--gray-400);margin-bottom:16px;padding:4px}
.modal-close::before{content:'';display:block;width:36px;height:4px;background:var(--gray-300);border-radius:2px;margin:0 auto 8px}
.modal-title{font-size:20px;font-weight:700;text-align:center;margin-bottom:4px}
.modal-price{text-align:center;margin:16px 0}
.modal-price .amount{font-size:36px;font-weight:700;color:var(--danger)}
.modal-price .amount small{font-size:16px;font-weight:500}
.modal-price .original{font-size:14px;color:var(--gray-400);text-decoration:line-through;margin-left:8px}
.modal-features{margin:20px 0;background:var(--gray-50);border-radius:var(--radius-sm);padding:16px}
.modal-features h4{font-size:14px;font-weight:600;margin-bottom:10px;color:var(--gray-700)}
.modal-feature{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--gray-600);margin-bottom:8px}
.modal-feature:last-child{margin-bottom:0}
.modal-feature .check{color:var(--success);font-weight:700;flex-shrink:0;margin-top:1px}
.modal-tip{font-size:12px;color:var(--gray-400);text-align:center;margin-top:12px}

/* Strategy page */
.strategy-header{text-align:center;padding:24px 16px}
.strategy-header h2{font-size:20px;font-weight:700}

/* Result page */
.result-page{text-align:center;padding:48px 24px}
.result-icon{width:72px;height:72px;border-radius:50%;background:var(--success-light);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:32px}
.result-page h2{font-size:22px;font-weight:700;margin-bottom:8px}
.result-page p{color:var(--gray-500);margin-bottom:24px}

/* Toast */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);background:var(--gray-800);color:#fff;padding:10px 20px;border-radius:20px;font-size:14px;z-index:300;opacity:0;transition:opacity .3s;pointer-events:none;white-space:nowrap}
.toast.show{opacity:1}

/* Additional modules toggle */
.module-toggle{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#fff;margin:12px 16px;border-radius:var(--radius);border:1px solid var(--gray-200);cursor:pointer}
.module-toggle h4{font-size:15px;font-weight:500}
.toggle-switch{width:44px;height:24px;background:var(--gray-300);border-radius:12px;position:relative;transition:background .2s}
.toggle-switch.on{background:var(--primary)}
.toggle-switch::after{content:'';width:20px;height:20px;background:#fff;border-radius:50%;position:absolute;top:2px;left:2px;transition:transform .2s}
.toggle-switch.on::after{transform:translateX(20px)}
.additional-modules{display:none}
.additional-modules.show{display:block}

/* Tabs */
.tabs{display:flex;background:#fff;border-bottom:1px solid var(--gray-200);margin-bottom:16px;position:sticky;top:0;z-index:50}
.tab{flex:1;padding:12px;text-align:center;font-size:14px;font-weight:500;color:var(--gray-500);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}

/* PDF Download button */
.pdf-download-bar{background:#fff;padding:12px 16px;margin:12px 16px;border-radius:var(--radius);border:1px solid var(--gray-200);display:flex;align-items:center;gap:12px}
.pdf-download-bar .icon{width:36px;height:36px;background:var(--primary-light);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--primary)}
.pdf-download-bar .info{flex:1;font-size:14px}
.pdf-download-bar .info .name{font-weight:600;color:var(--gray-800)}
.pdf-download-bar .info .desc{font-size:12px;color:var(--gray-400)}
.pdf-download-bar .btn-sm{width:auto;flex-shrink:0}

.fade-in{animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* Login page */
.login-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 20px;background:linear-gradient(180deg,#EEF2FF 0%,#fff 50%)}
.login-logo{text-align:center;margin-bottom:32px}
.login-icon{width:64px;height:64px;background:linear-gradient(135deg,#4A6CF7,#6366F1);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:32px;margin:0 auto 16px;box-shadow:0 8px 24px rgba(74,108,247,.25)}
.login-logo h1{font-size:22px;font-weight:700;color:var(--gray-900);margin-bottom:4px}
.login-logo p{font-size:13px;color:var(--gray-500)}
.login-card{width:100%;max-width:360px;background:#fff;border-radius:16px;padding:28px 24px;box-shadow:0 4px 24px rgba(0,0,0,.06)}
.login-welcome{text-align:center;margin-bottom:24px}
.login-welcome h2{font-size:20px;font-weight:700;color:var(--gray-900);margin-bottom:4px}
.login-welcome p{font-size:14px;color:var(--gray-400)}
.login-card input[type="tel"],.login-card input[type="text"]{width:100%;padding:12px 14px;border:1.5px solid var(--gray-200);border-radius:10px;font-size:16px;transition:all .2s;background:var(--gray-50)}
.login-card input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(74,108,247,.1)}
.code-input-row{display:flex;gap:10px}
.code-input-row input{flex:1;min-width:0}
.btn-code{width:110px;flex-shrink:0;padding:12px 0;background:var(--primary-light);color:var(--primary);border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all .15s}
.btn-code:active{background:var(--primary);color:#fff}
.btn-code.disabled{background:var(--gray-100);color:var(--gray-400);cursor:not-allowed}
.login-card .btn-primary{margin-top:8px}
.login-tip{text-align:center;font-size:12px;color:var(--gray-400);margin-top:16px}
.login-tip a{color:var(--primary);text-decoration:none}

/* Review pending page */
.review-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 20px;background:linear-gradient(180deg,#EEF2FF 0%,#fff 50%)}
.review-icon{width:72px;height:72px;background:var(--success-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:36px;margin-bottom:16px;border:2px solid var(--success)}
.review-page h2{font-size:20px;font-weight:700;color:var(--gray-900);margin-bottom:4px}
.review-subtitle{font-size:14px;color:var(--gray-500);margin-bottom:24px}
.review-card{width:100%;max-width:360px;background:#fff;border-radius:16px;padding:20px;border:1px solid var(--gray-200);box-shadow:0 2px 12px rgba(0,0,0,.04);margin-bottom:20px}
.review-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--gray-100)}
.review-item:last-child{border-bottom:none}
.review-check{width:28px;height:28px;background:var(--success-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--success);font-weight:700}
.review-wait{width:28px;height:28px;background:var(--warning-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--warning);font-weight:700}
.review-item p{font-size:15px;color:var(--gray-700);font-weight:500}
.review-tip{width:100%;max-width:360px;background:var(--primary-light);border-radius:12px;padding:16px;display:flex;gap:12px;margin-bottom:24px}
.review-tip-icon{width:36px;height:36px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--primary);flex-shrink:0}
.review-tip-content h4{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:4px}
.review-tip-content p{font-size:14px;color:var(--gray-600);line-height:1.5}
.review-tip-content strong{color:var(--gray-800)}

/* Report ready cards */
.report-ready-card{background:#fff;border-radius:var(--radius);padding:16px;border:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;transition:all .15s}
.report-ready-card:active{background:var(--gray-50)}
.report-ready-info{display:flex;align-items:center;gap:12px;flex:1;min-width:0}
.report-ready-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.report-ready-text{flex:1;min-width:0}
.report-ready-name{font-size:15px;font-weight:600;color:var(--gray-800)}
.report-ready-desc{font-size:12px;color:var(--gray-400);margin-top:2px}
.report-ready-btn{flex-shrink:0;white-space:nowrap}

/* Contact section */
.contact-section{background:#fff;border-radius:var(--radius);padding:16px;border:1px solid var(--gray-200);margin-bottom:16px}
.contact-section-review{max-width:360px;width:100%;margin-bottom:20px}
.contact-title{font-size:15px;font-weight:600;color:var(--gray-800);margin-bottom:12px}
.contact-body{display:flex;flex-direction:column;gap:12px;align-items:center}
.contact-phone{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;background:var(--primary-light);border-radius:var(--radius-sm)}
.contact-phone-icon{width:36px;height:36px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.contact-phone-info{flex:1}
.contact-label{font-size:12px;color:var(--gray-500)}
.contact-value{font-size:16px;font-weight:600;color:var(--primary)}
.contact-qrcode{text-align:center;width:100%}
.contact-qrcode-label{font-size:13px;color:var(--gray-500);margin-bottom:8px}
.contact-qrcode-img{width:140px;height:140px;border-radius:8px;border:1px solid var(--gray-200);object-fit:contain}