.support-hero{background:var(--bg-hero);position:relative;overflow:hidden;padding:var(--space-12) var(--space-4) var(--space-16);text-align:center}.support-hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgb(41 162 217 / .04) 1px,transparent 1px),linear-gradient(90deg,rgb(41 162 217 / .04) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,black 20%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,black 20%,transparent 70%)}.support-hero::after{content:'';position:absolute;top:-30%;left:50%;transform:translateX(-50%);width:500px;height:500px;background:radial-gradient(circle,rgb(41 162 217 / .1) 0%,transparent 70%);pointer-events:none}.hero-content{position:relative;z-index:2;max-width:600px;margin:0 auto var(--space-10);animation:heroFadeUp 0.7s var(--ease-out-expo) both}.hero-content 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(min-width:1024px){.layout-container{max-width:720px;margin-top:-48px}}.form-card{background:var(--surface-color);border-radius:var(--card-radius);box-shadow:var(--shadow-card);padding:var(--space-6) var(--space-5) var(--space-8);position:relative;overflow:hidden;border:1px solid var(--border-color)}@media (min-width:768px){.form-card{padding:var(--space-8) var(--space-10)}}.progress-indicator{display:flex;justify-content:center;align-items:center;gap:0;margin-bottom:var(--space-8);padding:var(--space-2) 0}.progress-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;transition:width var(--duration-slow) var(--ease-out-expo),height var(--duration-slow) var(--ease-out-expo),background var(--duration-slow) var(--ease-out-expo),border-color var(--duration-slow) var(--ease-out-expo),box-shadow var(--duration-slow) var(--ease-out-expo);position:relative;z-index:2}.progress-dot[data-status="upcoming"]{background:#fff0;border:2px solid 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(min-width:768px){.progress-connector{width:56px}}.steps-wrapper{position:relative;width:100%}.step{position:absolute;top:0;left:0;width:100%;opacity:0;visibility:hidden;pointer-events:none;transform:translateX(24px);transition:opacity var(--duration-slow) var(--ease-out-expo),transform var(--duration-slow) var(--ease-out-expo),visibility 0s var(--duration-slow)}.step.active{position:relative;opacity:1;visibility:visible;pointer-events:auto;transform:translateX(0);transition:opacity var(--duration-slow) var(--ease-out-expo),transform var(--duration-slow) var(--ease-out-expo),visibility 0s 0s}.step.slide-out-left{transform:translateX(-24px)}.btn-back{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);padding:var(--space-1) 0;margin-bottom:var(--space-4);transition:color var(--duration-fast) ease;-webkit-tap-highlight-color:#fff0;border:none;outline:none;background:none;cursor:pointer}.btn-back i{font-size:.75em;transition:transform var(--duration-normal) var(--ease-out-expo)}.btn-back:hover{color:var(--feidi-blue)}.btn-back:hover i{transform:translateX(-3px)}h2.step-title{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-6);color:var(--text-primary);letter-spacing:var(--tracking-tight);line-height:var(--leading-tight)}@media (min-width:768px){h2.step-title{font-size:var(--text-2xl)}}.form-group{margin-bottom:var(--space-6)}.form-label{display:block;font-weight:600;margin-bottom:var(--space-2);font-size:var(--text-sm);color:var(--text-primary);letter-spacing:.01em}.form-input,.form-select,.form-textarea{width:100%;padding:var(--space-3) var(--space-4);border:1.5px solid var(--border-color);border-radius:var(--radius-md);background:var(--input-bg);color:var(--text-primary);font-family:inherit;font-size:var(--text-base);transition:border-color var(--duration-fast) ease,box-shadow var(--duration-fast) ease,background-color var(--duration-fast) 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var(--space-4) var(--space-6);text-align:center;cursor:pointer;position:relative;transition:border-color var(--duration-normal) ease,box-shadow var(--duration-normal) ease,transform var(--duration-normal) ease,background-color var(--duration-normal) ease;background:var(--surface-color);overflow:hidden}.brand-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--feidi-blue);transform:scaleX(0);transition:transform var(--duration-normal) var(--ease-out-expo);border-radius:0 0 2px 2px}.brand-card:hover{border-color:var(--text-tertiary);box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.brand-card:hover::before{transform:scaleX(1)}.brand-card.selected{border-color:var(--feidi-blue);background:var(--feidi-blue-subtle);box-shadow:0 0 0 1px var(--feidi-blue),var(--shadow-card);transform:translateY(-2px)}.brand-card.selected::before{transform:scaleX(1)}.brand-card-icon{width:56px;height:56px;margin:0 auto var(--space-4);border-radius:var(--radius-md);background:var(--bg-color);display:flex;align-items:center;justify-content:center;transition:background-color var(--duration-normal) ease}.brand-card.selected .brand-card-icon{background:var(--feidi-blue-15)}.brand-card-icon svg{width:32px;height:32px;fill:none;stroke:var(--text-tertiary);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:stroke var(--duration-normal) ease}.brand-card:hover .brand-card-icon svg,.brand-card.selected .brand-card-icon svg{stroke:var(--feidi-blue)}.brand-card h3{font-size:var(--text-xl);font-weight:800;margin-bottom:var(--space-2);letter-spacing:var(--tracking-tight)}.brand-card p{font-size:var(--text-xs);color:var(--text-secondary);line-height:var(--leading-normal);margin:0 auto;max-width:180px}.info-icon{position:absolute;top:var(--space-3);right:var(--space-3);color:var(--text-tertiary);font-size:var(--text-sm);padding:var(--space-2);border-radius:50%;transition:color var(--duration-fast) ease,background-color var(--duration-fast) ease;z-index:2;border:none;outline:none;background:none;cursor:pointer}.info-icon:hover{color:var(--feidi-blue);background:var(--feidi-blue-subtle)}.chip-grid{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-4)}.chip{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 var(--space-5);border:1.5px solid var(--border-color);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:500;cursor:pointer;color:var(--text-secondary);transition:border-color var(--duration-fast) ease,color var(--duration-fast) ease,background-color var(--duration-fast) ease,transform var(--duration-fast) ease,box-shadow var(--duration-fast) ease;background:var(--surface-color);user-select:none;-webkit-tap-highlight-color:#fff0}.chip:hover{border-color:var(--text-tertiary);color:var(--text-primary);background:var(--bg-color)}.chip:active{transform:scale(.97)}.chip.active{border-color:var(--feidi-blue);background:var(--feidi-blue);color:#fff;box-shadow:0 2px 8px rgb(41 162 217 / .2);transform:scale(1)}.helper-text{font-size:var(--text-xs);color:var(--text-tertiary);margin-bottom:var(--space-4);display:block;line-height:var(--leading-normal)}.expandable-area{max-height:0;overflow:hidden;opacity:0;transition:max-height var(--duration-slow) var(--ease-out-expo),opacity var(--duration-normal) ease}.expandable-area.open{max-height:300px;opacity:1;margin-top:var(--space-4)}.btn-container{margin-top:var(--space-8);display:flex;justify-content:flex-end}.btn-primary{background:var(--feidi-blue);color:#fff;padding:var(--space-3) var(--space-8);border-radius:var(--radius-md);font-weight:600;font-size:var(--text-base);transition:background-color var(--duration-fast) ease,transform var(--duration-fast) ease,box-shadow var(--duration-fast) ease;display:inline-flex;align-items:center;gap:var(--space-2);position:relative;overflow:hidden;min-height:48px;letter-spacing:.01em;border:none;outline:none;cursor:pointer}.btn-primary i{transition:transform var(--duration-normal) var(--ease-out-expo);font-size:.85em}.btn-primary:hover:not(:disabled){background:var(--feidi-blue-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgb(41 162 217 / .3)}.btn-primary:hover:not(:disabled) i{transform:translateX(3px)}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 4px rgb(41 162 217 / .2)}.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none}@media (max-width:768px){.btn-container{justify-content:stretch}.btn-primary{width:100%;justify-content:center}}.confirmation-box{text-align:center;padding:var(--space-4) 0}.confirmation-icon{font-size:2.5rem;color:var(--success-color);margin-bottom:var(--space-4);animation:confirmPop 0.5s var(--ease-spring) both}.confirmation-box .step-title{margin-bottom:var(--space-3);animation:fadeIn 0.5s var(--ease-out-expo) 0.15s both}.confirmation-box>p{color:var(--text-secondary);margin-bottom:0;font-size:var(--text-sm);animation:fadeIn 0.5s var(--ease-out-expo) 0.25s both}.ticket-id{font-family:'SF Mono','Fira Code','Courier New',monospace;font-size:var(--text-2xl);font-weight:700;color:#fff;background:var(--feidi-dark);padding:var(--space-5) var(--space-8);border-radius:var(--radius-md);letter-spacing:.12em;margin:var(--space-6) auto;display:inline-block;position:relative;overflow:hidden;animation:fadeIn 0.5s var(--ease-out-expo) 0.35s both}.ticket-id::after{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgb(255 255 255 / .08),transparent);animation:shimmer 2s ease-in-out 0.8s}body.dark-mode .ticket-id{background:#000;border:1px solid #27272a}.ticket-id-group{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);margin:var(--space-6) auto;animation:fadeIn 0.5s var(--ease-out-expo) 0.35s both}.ticket-id-group .ticket-id{margin:0;animation:none}.btn-copy-ticket{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:600;color:var(--feidi-blue);background:var(--feidi-blue-subtle);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);transition:background-color var(--duration-fast) ease,border-color var(--duration-fast) ease;border:1px solid #fff0;outline:none;cursor:pointer}.btn-copy-ticket:hover{background:var(--feidi-blue-15);border-color:var(--feidi-blue)}.btn-copy-ticket i{font-size:.85em}.ticket-hint{font-size:var(--text-xs);color:var(--text-tertiary);margin-top:var(--space-2);text-align:center;animation:fadeIn 0.5s var(--ease-out-expo) 0.5s both}.tracking-url-group{display:flex;margin-top:var(--space-6);align-items:center;border:1.5px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;background:var(--input-bg);animation:fadeIn 0.5s var(--ease-out-expo) 0.45s both}.tracking-url-group input{flex:1;border:none;padding:var(--space-3) var(--space-4);background:#fff0;color:var(--text-secondary);font-size:var(--text-xs);font-family:'SF Mono','Fira Code','Courier New',monospace;outline:none;min-width:0}.btn-copy{background:var(--surface-color);border-left:1.5px solid var(--border-color);padding:0 var(--space-5);font-weight:600;font-size:var(--text-sm);color:var(--feidi-blue);transition:background-color var(--duration-fast) ease;height:100%;display:flex;align-items:center;min-height:44px;white-space:nowrap;border-top:none;border-right:none;border-bottom:none;outline:none;cursor:pointer}.btn-copy:hover{background:var(--bg-color)}.soft-divider{height:1px;background:var(--border-color);margin:var(--space-6) 0}.text-link{color:var(--text-secondary);font-weight:500;font-size:var(--text-sm);border:none;outline:none;background:none;border-bottom:1px solid #fff0;transition:color var(--duration-fast) ease,border-bottom-color var(--duration-fast) ease;cursor:pointer;display:inline-block}.text-link:hover{color:var(--feidi-blue)!important;border-bottom-color:var(--feidi-blue)}.tracking-section-container{display:none}.tracking-section-container.active{display:block}.tracking-section{background:var(--surface-color);border-radius:var(--card-radius);border:1px solid var(--border-color);box-shadow:var(--shadow-card);padding:var(--space-6) var(--space-5)}@media (min-width:768px){.tracking-section{padding:var(--space-10)}}.tracking-header h3{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-2);letter-spacing:var(--tracking-tight)}.tracking-header p{font-size:var(--text-sm);color:var(--text-secondary)}.tracking-form{display:flex;flex-direction:column;gap:var(--space-4);margin-top:var(--space-6)}.tracking-form .btn-primary{width:100%;justify-content:center}@media (min-width:600px){.tracking-form{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}.tracking-form .btn-primary{grid-column:1 / -1;width:auto;justify-self:start}}.tracking-result{margin-top:var(--space-6);padding:var(--space-8) var(--space-6);background:var(--bg-color);border-radius:var(--radius-lg);border:1px solid var(--border-color);display:none;text-align:center}.tracking-result.show{display:block;animation:fadeIn var(--duration-slow) var(--ease-out-expo)}.track-result-icon{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-4);font-size:1.25rem;transition:background-color var(--duration-normal) ease,color var(--duration-normal) ease,border-color var(--duration-normal) ease}.track-result-icon.icon-neutral{background:var(--bg-color);color:var(--text-tertiary);border:1.5px solid var(--border-color)}.track-result-icon.icon-blue{background:var(--feidi-blue-subtle);color:var(--feidi-blue);border:1.5px solid rgb(41 162 217 / .15)}.track-result-icon.icon-amber{background:#fffbeb;color:#b45309;border:1.5px solid #fde68a}body.dark-mode .track-result-icon.icon-amber{background:rgb(251 191 36 / .08);color:#fbbf24;border-color:rgb(251 191 36 / .15)}.track-result-icon.icon-green{background:rgb(16 185 129 / .08);color:var(--success-color);border:1.5px solid rgb(16 185 129 / .15)}.track-result-badge-wrap{display:flex;justify-content:center;margin-bottom:var(--space-4)}.status-badge-large{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-2) var(--space-6);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:600;letter-spacing:.01em;transition:background-color var(--duration-fast) ease,color var(--duration-fast) ease,border-color var(--duration-fast) ease}.status-badge-large.status-neutral{background:var(--bg-color);color:var(--text-secondary);border:1px solid var(--border-color)}.status-badge-large.status-blue{background:var(--feidi-blue-subtle);color:var(--feidi-blue);border:1px solid rgb(41 162 217 / .2)}.status-badge-large.status-amber{background:#fffbeb;color:#b45309;border:1px solid #fde68a}body.dark-mode .status-badge-large.status-amber{background:rgb(251 191 36 / .1);color:#fbbf24;border-color:rgb(251 191 36 / .2)}.status-badge-large.status-green{background:rgb(16 185 129 / .08);color:var(--success-color);border:1px solid rgb(16 185 129 / .2)}.seen-indicator{font-size:var(--text-sm);color:var(--success-color);display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-weight:500;margin-bottom:var(--space-2)}.seen-indicator i{font-size:.85em}.track-result-actions{margin-top:var(--space-5);text-align:center;padding-top:var(--space-4);border-top:1px solid var(--border-color)}.tracking-result-label{display:none}.tracking-result-ref{display:none}.tracking-result-header{display:none}.status-badge{display:none}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgb(0 0 0 / .6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:200000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity var(--duration-normal) ease,visibility 0s var(--duration-normal);padding:var(--space-4)}.modal-overlay.active{opacity:1;visibility:visible;transition:opacity var(--duration-normal) ease,visibility 0s 0s}.modal-content{background:var(--surface-color);padding:var(--space-8);border-radius:var(--card-radius);max-width:480px;width:100%;position:relative;transform:translateY(16px) scale(.98);transition:transform var(--duration-slow) var(--ease-out-expo);box-shadow:var(--shadow-elevated);text-align:center}.modal-overlay.active .modal-content{transform:translateY(0) scale(1)}.modal-close{position:absolute;top:var(--space-4);right:var(--space-4);font-size:1.25rem;color:var(--text-tertiary);padding:var(--space-2);border-radius:50%;transition:color var(--duration-fast) ease,background-color var(--duration-fast) ease}.modal-close:hover{color:var(--text-primary);background:var(--bg-color)}.vehicle-silhouettes{display:flex;justify-content:center;gap:var(--space-6);margin-top:var(--space-6)}.silhouette{width:120px;height:56px;background:var(--bg-color);border-radius:var(--radius-sm);position:relative;border:1px solid var(--border-color)}.silhouette::after{content:'';position:absolute;bottom:-8px;left:12px;width:16px;height:16px;background:var(--text-tertiary);border-radius:50%;box-shadow:64px 0 0 var(--text-tertiary)}.lang-banner{position:relative;margin:var(--space-6) auto;max-width:780px;z-index:100001;background:var(--feidi-dark);color:#e4e4e7;padding:var(--space-3) var(--space-5);border-radius:var(--radius-full);display:none;align-items:center;gap:var(--space-4);font-size:var(--text-sm);font-weight:500;box-shadow:0 8px 32px rgb(0 0 0 / .3);opacity:0;transition:opacity var(--duration-slow) var(--ease-out-expo);white-space:normal;justify-content:center;text-align:center;width:fit-content;min-width:280px;max-width:calc(100vw - 32px)}.lang-banner.show{opacity:1;display:flex}.lang-banner-btn{background:var(--feidi-blue);color:white!important;padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-weight:600;font-size:var(--text-xs);transition:background var(--duration-fast) ease;text-decoration:none}.lang-banner-btn:hover{background:var(--feidi-blue-hover)}.lang-banner-close{color:#71717a;font-size:1rem;cursor:pointer;padding:var(--space-1);transition:color var(--duration-fast) ease;background:none;border:none;font-family:inherit}.lang-banner-close:hover{color:#fff}@media (max-width:768px){.lang-banner{flex-direction:column;gap:var(--space-3);border-radius:var(--radius-lg)}}@keyframes heroFadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes cardFadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes confirmPop{0%{opacity:0;transform:scale(.5)}60%{transform:scale(1.1)}100%{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{left:-100%}100%{left:200%}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}}.brand-logo-light{display:block}.brand-logo-dark{display:none}body.dark-mode .brand-logo-light{display:none}body.dark-mode .brand-logo-dark{display:block}.issue-helper{display:none;align-items:flex-start;gap:var(--space-2);margin-top:var(--space-3);margin-bottom:var(--space-3);font-size:var(--text-sm);color:var(--text-secondary);line-height:var(--leading-normal)}.issue-helper i{color:var(--feidi-blue);font-size:var(--text-sm);margin-top:2px;flex-shrink:0}.status-badge-large{display:inline-block;padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:600;letter-spacing:.01em}.status-neutral{background:#f4f4f5;color:#52525b}.status-blue{background:var(--feidi-blue-subtle);color:var(--feidi-blue)}.status-amber{background:rgb(245 158 11 / .1);color:#d97706}.status-green{background:rgb(16 185 129 / .1);color:#059669}body.dark-mode .status-neutral{background:#27272a;color:#a1a1aa}body.dark-mode .status-blue{background:rgb(41 162 217 / .15);color:#29a2d9}body.dark-mode .status-amber{background:rgb(245 158 11 / .15);color:#fbbf24}body.dark-mode .status-green{background:rgb(16 185 129 / .15);color:#34d399}button,a,.chip,.brand-card,.tab-switcher-btn,.info-icon,.btn-back,.btn-copy,.btn-copy-ticket,.text-link,.modal-close,.lang-banner-btn,.lang-banner-close{touch-action:manipulation}.tab-switcher-indicator{will-change:transform}.step{will-change:transform,opacity}.modal-content{will-change:transform}.lang-banner{will-change:transform,opacity}.brand-card{will-change:transform}.hero-content,.tab-switcher-wrapper,.layout-container{animation-fill-mode:both}@media (max-width:768px){.step{transition:opacity 250ms ease-out,transform 250ms ease-out,visibility 0s 250ms}.step.active{transition:opacity 250ms ease-out,transform 250ms ease-out,visibility 0s 0s}.tab-switcher-indicator{transition:transform 250ms ease-out}.hero-content{animation-duration:0.4s}.tab-switcher-wrapper{animation-duration:0.4s}.layout-container{animation-duration:0.35s}.progress-dot{transition-duration:250ms}.progress-connector{transition-duration:250ms}.expandable-area{transition:max-height 250ms ease-out,opacity 200ms ease}.modal-overlay{backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}}#track-status-msg{font-size:var(--text-sm);color:var(--text-secondary);margin-top:var(--space-3);line-height:var(--leading-normal);text-align:center}