:root{--bg-0: #07030D;--bg-1: #0F0718;--bg-2: #17091F;--bg-3: #1E0C29;--bg-4: #2A1135;--surface-0: rgba(255, 255, 255, .025);--surface-1: rgba(255, 255, 255, .05);--surface-2: rgba(255, 255, 255, .08);--surface-3: rgba(255, 255, 255, .12);--surface-hover: rgba(255, 255, 255, .07);--line-soft: rgba(255, 255, 255, .06);--line-medium: rgba(255, 255, 255, .1);--line-strong: rgba(255, 255, 255, .18);--text-primary: rgba(255, 255, 255, .97);--text-secondary: rgba(255, 255, 255, .72);--text-tertiary: rgba(255, 255, 255, .54);--text-quaternary: rgba(255, 255, 255, .38);--accent: #FF3A7C;--accent-bright: #FF5C92;--accent-soft: #FF8AB3;--accent-deep: #E91E63;--accent-shadow: #AD1457;--accent-gradient: linear-gradient(135deg, #FF5C92 0%, #E91E63 55%, #AD1457 100%);--accent-gradient-soft: linear-gradient(135deg, rgba(255, 92, 146, .18), rgba(233, 30, 99, .08));--success: #34D399;--success-bg: rgba(52, 211, 153, .1);--warning: #FBBF24;--warning-bg: rgba(251, 191, 36, .1);--danger: #F87171;--danger-bg: rgba(248, 113, 113, .1);--font-display-cn: "Noto Serif SC", "Source Han Serif SC", "STSong", "FangSong", serif;--font-body-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;--font-num: "Inter", var(--font-body-cn);--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-7: 28px;--sp-8: 32px;--sp-10: 40px;--sp-12: 48px;--sp-14: 56px;--sp-16: 64px;--sp-20: 80px;--sp-24: 96px;--sp-32: 128px;--r-sm: 8px;--r-md: 12px;--r-lg: 16px;--r-xl: 20px;--r-2xl: 28px;--r-3xl: 36px;--r-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4), 0 1px 3px rgba(0, 0, 0, .3);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .5), 0 2px 8px rgba(0, 0, 0, .3);--shadow-xl: 0 32px 80px rgba(0, 0, 0, .6);--shadow-glow: 0 0 40px rgba(233, 30, 99, .25);--shadow-glow-sm: 0 4px 16px rgba(233, 30, 99, .3);--shadow-accent: 0 8px 24px rgba(233, 30, 99, .35), inset 0 1px 0 rgba(255, 255, 255, .2);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--dur-fast: .15s;--dur-base: .28s;--dur-slow: .52s;--header-h: 64px;--stepper-h: 56px;--content-max: 1200px;--content-narrow: 760px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + var(--stepper-h) + 16px);text-rendering:optimizeLegibility}body{font-family:var(--font-body-cn);font-weight:400;font-size:15px;line-height:1.6;color:var(--text-primary);background:var(--bg-0);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(ellipse 100% 70% at 50% -5%,rgba(233,30,99,.22) 0%,transparent 55%),radial-gradient(ellipse 55% 45% at 92% 12%,rgba(173,20,87,.14) 0%,transparent 55%),radial-gradient(ellipse 45% 40% at 8% 8%,rgba(255,58,124,.12) 0%,transparent 55%),linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 50%,var(--bg-0) 100%)}body:after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.35;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.35 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}button,input,textarea,select{font:inherit;color:inherit}button{background:none;border:none;cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}img,video,svg{display:block;max-width:100%}:where(.btn,.upload-tab,.upload-area__icon,.path-card__hint,.path-card__select-indicator,.analysis-box,.product-render-panel,.style-preview-tuner,.publish-card__icon,.video-card__action,.iterate-chat__label,.footer-contact__item,.modal__close,.modal__footer-hint,.toast,.auth-password-toggle,.product-info-input,.preview-thumb__remove,.product-upload-preview__remove) svg{fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}::selection{background:#e91e6359;color:#fff}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px;border:2px solid transparent;background-clip:padding-box}::-webkit-scrollbar-thumb:hover{background:#fff3;background-clip:padding-box}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}