:root{--color-bg: #fff8e1;--color-surface: rgba(255, 255, 255, .65);--color-primary: #e67e22;--color-primary-hover: #d35400;--color-primary-light: #fdf2e9;--color-text: #5d4037;--color-text-secondary: #8d6e63;--color-text-light: #a1887f;--color-border: #f5e6cc;--color-border-focus: #e67e22;--color-success: #27ae60;--color-error: #e74c3c;--color-info: #8d6e63;--color-warning: #f39c12;--color-status-new-bg: #e8f5e9;--color-status-new-text: #2e7d32;--color-status-update-bg: #fff3e0;--color-status-update-text: #e65100;--color-skeleton: #f5e6cc;--color-skeleton-shine: #fff8e1;--font-family: "Inter", "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .8125rem;--font-size-base: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-2xl: 24px;--spacing-3xl: 32px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-pill: 9999px;--shadow-sm: 0 1px 4px rgba(93, 64, 55, .06);--shadow-md: 0 2px 8px rgba(93, 64, 55, .08);--shadow-lg: 0 6px 20px rgba(93, 64, 55, .15);--transition-fast: .2s ease;--transition-normal: .3s ease;--max-width: 430px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{min-height:100vh;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer;border:none;background:none;-webkit-tap-highlight-color:transparent}#app{max-width:var(--max-width);min-height:100vh;margin:0 auto;padding:var(--spacing-lg) var(--spacing-lg) calc(160px + env(safe-area-inset-bottom))}.page-shell{display:flex;flex-direction:column;gap:var(--spacing-lg)}.fade-in{animation:fadeIn var(--transition-normal)}.page-shell__header{display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-md)}.page-shell__brand{display:flex;align-items:center;gap:var(--spacing-md);min-width:0}.page-shell__brand-icon{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--color-primary-light);flex-shrink:0}.page-shell__brand-copy{min-width:0}.page-shell__eyebrow{font-size:var(--font-size-xs);color:var(--color-text-light);letter-spacing:.08em;text-transform:uppercase}.page-title{font-size:var(--font-size-xl);font-weight:700;color:var(--color-text);letter-spacing:.5px}.page-shell__lead{color:var(--color-text-secondary)}.page-shell__env{display:inline-flex;align-items:center;justify-content:center;padding:6px 12px;border-radius:var(--radius-pill);background:#ffffffbf;border:1px solid var(--color-border);color:var(--color-text-light);font-size:var(--font-size-xs);white-space:nowrap;box-shadow:var(--shadow-sm)}.story-section{background:#fff;border-radius:var(--radius-md);padding:16px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-md)}.story-section__title{font-size:15px;font-weight:700;color:var(--color-text)}.story-section__text{font-size:13px;color:var(--color-text-secondary);line-height:1.7}.page-shell__nav{position:fixed;bottom:0;left:0;right:0;margin:0 auto;max-width:var(--max-width);width:100%;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-sm) calc(var(--spacing-sm) + env(safe-area-inset-bottom));background:#ffffffd9;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.6);box-shadow:0 -2px 8px #5d40370d;z-index:100}.page-shell__nav-link{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:58px;padding:var(--spacing-sm) 6px;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:transform var(--transition-fast),background-color var(--transition-fast),color var(--transition-fast);text-align:center}.page-shell__nav-link--active{background:var(--color-primary-light);color:var(--color-primary);box-shadow:inset 0 0 0 1px #e67e221f}.page-shell__nav-link:active{transform:scale(.96)}.page-shell__nav-icon{font-size:1rem}.page-shell__nav-label{font-size:var(--font-size-xs);font-weight:600}.content-section,.form-card,.shortcut-card,.product-card,.order-card,.course-card,.summary-card,.skeleton-card{background:var(--color-surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.6);border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.content-section,.form-card,.shortcut-card{padding:var(--spacing-lg)}.section-title{font-size:var(--font-size-lg);font-weight:700;margin-bottom:var(--spacing-sm)}.section-copy{color:var(--color-text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--radius-pill);border:1px solid transparent;font-size:var(--font-size-base);font-weight:600;transition:transform var(--transition-fast),background-color var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast)}.btn:active{transform:scale(.96)}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-hover)}.btn--secondary{background:transparent;border-color:var(--color-primary);color:var(--color-primary)}.btn--full-width{width:100%}.btn--sm{padding:6px 14px;font-size:var(--font-size-sm)}.btn[disabled],.btn:disabled{opacity:.56;cursor:not-allowed;transform:none}.form-card{display:flex;flex-direction:column;gap:var(--spacing-md)}.form-group{display:block;margin-bottom:var(--spacing-md)}.form-label{display:block;margin-bottom:var(--spacing-xs);font-size:var(--font-size-sm);font-weight:600;color:var(--color-text)}.form-input,.form-select,.form-textarea,.filter-select{width:100%;padding:var(--spacing-md);border:1.5px solid rgba(255,255,255,.8);border-radius:var(--radius-sm);background:#ffffffb3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--color-text);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background-color var(--transition-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus,.filter-select:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 3px #e67e221a}.form-textarea{min-height:88px;resize:vertical}.form-error{margin-top:var(--spacing-xs);color:var(--color-error);font-size:var(--font-size-xs)}.inline-feedback{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-sm);font-size:var(--font-size-sm)}.inline-feedback--success{background:#27ae601f;color:var(--color-success)}.inline-feedback--warning{background:#f39c1229;color:#8a5d00}.inline-feedback--error{background:#e74c3c1f;color:var(--color-error)}.filter-bar{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.product-list,.hot-product-list,.orders-list,.courses-list,.registration-summary-list{display:flex;flex-direction:column;gap:var(--spacing-lg);list-style:none}.product-card,.course-card{overflow:hidden;padding-bottom:var(--spacing-lg)}.product-card__image,.course-card__image{width:100%;height:200px;object-fit:cover}.product-card__image--skeleton{background:linear-gradient(90deg,var(--color-skeleton) 25%,var(--color-skeleton-shine) 50%,var(--color-skeleton) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.product-card__title-wrap,.product-card__price,.product-card__description-wrap,.product-card__meta,.product-card__action-wrap,.course-card__name,.course-card__price,.course-card__desc,.course-card__meta,.course-card__action-wrap{padding-inline:var(--spacing-lg)}.product-card__title-wrap,.course-card__name{margin-top:12px;font-size:15px;font-weight:600;line-height:1.4;color:#333}.product-card__price,.course-card__price{margin-top:8px;color:var(--color-primary);font-size:15px;font-weight:700}.product-card__meta,.course-card__meta{margin-top:6px;color:var(--color-text-light);font-size:13px}.product-card__description-wrap,.course-card__desc{margin-top:6px;color:var(--color-text-secondary);font-size:13px;display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}.product-card__action-wrap,.course-card__action-wrap{margin-top:var(--spacing-md)}.inquiry-form{border-top:1px solid var(--color-border);animation:slideDown var(--transition-normal)}.order-card,.summary-card{padding:var(--spacing-lg)}.order-card__header{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--spacing-sm)}.order-card__meta{margin-top:var(--spacing-xs);color:var(--color-text-secondary)}.course-card__name{font-size:15px;font-weight:600;line-height:1.4;color:#333}.course-card__price{margin-top:8px;color:var(--color-primary);font-size:15px;font-weight:700}.course-card__desc{margin-top:6px;color:var(--color-text-secondary);font-size:13px;display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}.status-badge{display:inline-flex;align-items:center;justify-content:center;padding:2px 10px;border-radius:var(--radius-pill);font-size:var(--font-size-xs);font-weight:700;white-space:nowrap}.status-badge--new{background:var(--color-status-new-bg);color:var(--color-status-new-text)}.status-badge--update{background:var(--color-status-update-bg);color:var(--color-status-update-text)}.status-badge--default{background:#8d6e6324;color:var(--color-info)}.state-message{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-md);padding:var(--spacing-3xl) var(--spacing-xl);text-align:center}.state-message__icon{font-size:2.4rem}.state-message__text{color:var(--color-text-secondary)}.skeleton-container{display:grid;gap:var(--spacing-lg)}.skeleton-card{overflow:hidden}.skeleton,.skeleton-img,.skeleton-text{position:relative;overflow:hidden;background:var(--color-skeleton)}.skeleton:after,.skeleton-img:after,.skeleton-text:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,var(--color-skeleton-shine),transparent);animation:shimmer 1.5s infinite}.skeleton-img{display:block;height:200px}.skeleton-text{height:14px;margin:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-sm)}.skeleton--title{width:60%}.skeleton--short{width:40%}.skeleton--medium{width:78%}.toast{position:fixed;bottom:100px;left:50%;display:inline-flex;align-items:center;gap:var(--spacing-sm);max-width:calc(100vw - 32px);padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-pill);color:#fff;box-shadow:var(--shadow-lg);opacity:0;transform:translate(-50%) translateY(20px);transition:opacity var(--transition-normal),transform var(--transition-normal);z-index:1000}.toast--visible{opacity:1;transform:translate(-50%) translateY(0)}.toast--success{background:var(--color-success)}.toast--error{background:var(--color-error)}.toast--info{background:var(--color-info)}.toast__icon{font-size:1rem}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}@keyframes slideDown{0%{opacity:0;max-height:0}to{opacity:1;max-height:600px}}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUpModal{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes fadeModalOverlay{0%{background-color:#0000}to{background-color:#0006}}.modal-overlay{position:fixed;inset:0;background-color:transparent;z-index:1000;display:flex;flex-direction:column;justify-content:flex-end;pointer-events:none}.modal-overlay__backdrop{position:absolute;inset:0;cursor:pointer;pointer-events:auto}.modal-content{position:relative;background:#ffffffe6;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.8);border-top-left-radius:var(--radius-lg);border-top-right-radius:var(--radius-lg);padding:var(--spacing-xl) var(--spacing-lg) calc(var(--spacing-xl) + env(safe-area-inset-bottom));width:100%;max-width:var(--max-width);margin:0 auto;max-height:85vh;overflow-y:auto;box-shadow:0 -4px 20px #0000001a;pointer-events:auto}.modal-close-btn{position:absolute;top:var(--spacing-lg);right:var(--spacing-lg);width:32px;height:32px;border-radius:50%;background:var(--color-bg);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--color-text-secondary);transition:background-color var(--transition-fast)}.modal-close-btn:active{background:var(--color-border)}@media (max-width: 480px){#app{padding:var(--spacing-md) var(--spacing-md) calc(160px + env(safe-area-inset-bottom))}.page-shell__nav{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (min-width: 768px){#app{padding-inline:var(--spacing-xl)}.content-section,.form-card,.shortcut-card{padding:var(--spacing-xl)}}