@import "https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700&family=Inter:wght@400;500;600;700&display=swap";
:root{--gold:#f4b331;--gold-light:#ffd86e;--gold-deep:#e6a020;--leaf:#3f7a29;--leaf-soft:#57be6a;--sky:#5aa8f2;--dark:#1f2a1f;--light:#fff;--gray:#f5f5f3;--wechat:#07c160;--heart-red:#c0392b;--price-orange:#e65c00;--surface:#ffffffb8;--surface-solid:#fff;--surface-elevated:#ffffffdb;--hairline:#1f2a1f14;--hairline-strong:#1f2a1f29;--highlight-edge:#fff9;--ease-out:cubic-bezier(.16,1,.3,1);--ease-in-out:cubic-bezier(.65,0,.35,1);--ease-spring:cubic-bezier(.34,1.56,.64,1);--dur-fast:.14s;--dur-base:.22s;--dur-slow:.36s;--tracking-display:-.025em;--tracking-heading:-.015em;--tracking-body:0;--tracking-small:.005em;--leading-display:1.05;--leading-heading:1.2;--leading-body:1.65;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--shadow-1:0 1px 2px #1f2a1f0f,0 1px 1px #1f2a1f0a;--shadow-2:0 4px 12px #1f2a1f14,0 2px 4px #1f2a1f0a;--shadow-3:0 10px 30px #1f2a1f1a,0 4px 8px #1f2a1f0a;--shadow-4:0 20px 50px #1f2a1f24,0 8px 16px #1f2a1f0d;--tap-min:44px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--dark);background:var(--light);font-family:Inter,system-ui,-apple-system,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:16px;line-height:var(--leading-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;margin:0}.section-header{text-align:center;margin-bottom:3rem}.section-title{font-family:Merriweather,Source Han Serif SC,Songti SC,serif;font-size:clamp(1.8rem,3.4vw,2.4rem);line-height:var(--leading-heading);letter-spacing:var(--tracking-heading);color:var(--dark);font-optical-sizing:auto;margin:0 0 .6rem;font-weight:700}.section-subtitle{color:#6b7280;letter-spacing:var(--tracking-small);margin:0;font-size:1rem}.btn{min-height:var(--tap-min);border-radius:var(--r-md);cursor:pointer;letter-spacing:0;transition-property:background-color,transform,box-shadow,color;transition-duration:var(--dur-base);transition-timing-function:var(--ease-out);will-change:transform;-webkit-tap-highlight-color:transparent;border:none;justify-content:center;align-items:center;padding:.95rem 2.25rem;font-family:inherit;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--gold);color:#fff;box-shadow:0 8px 20px #f4b33152}.btn-primary:hover{background:var(--leaf);box-shadow:0 10px 24px #3f7a2947}.btn-secondary{color:var(--gold);border:2px solid var(--gold);background:0 0;padding-block:calc(.95rem - 2px)}.btn-secondary:hover{background:var(--gold);color:#fff;box-shadow:0 8px 20px #f4b33147}.btn:active{transition-duration:var(--dur-fast);transform:scale(.97)}:where(a,button,input,[tabindex]):focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.btn:active,.productCard:active,.featureCard:active,.ecoCard:active,.badge:active,.videoCard:active,.promoCard:active{transform:none!important}}@media (prefers-reduced-transparency:reduce){:root{--surface:#fffffff5;--surface-elevated:#fff}.nav,.stickyCTA,[class*=nav],[class*=sticky]{-webkit-backdrop-filter:none!important}}@media (prefers-contrast:more){:root{--hairline:#1f2a1f59;--hairline-strong:#1f2a1f8c;--surface:#fff}.btn-secondary{border-width:3px}}@media (max-width:768px){.section-title{font-size:1.6rem}}