:root{--c-primary: #3FA86B;--c-primary-light: #EDF8F0;--c-primary-dark: #2B7D48;--c-primary-ghost: rgba(63, 168, 107, .08);--c-dark: #1A1A1A;--c-text: #333333;--c-text-secondary: #666666;--c-text-hint: #767676;--c-white: #FFFFFF;--c-bg: #FFFFFF;--c-bg-alt: #F5F7FA;--c-bg-warm: #FAFAF7;--c-divider: #E0E0E0;--c-border: #E8E8E8;--c-success: #4CAF50;--c-warning: #FF9800;--c-error: #F44336;--c-disabled: #C8C8C8;--f-body: "Sora", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;--fs-h1: clamp(2rem, 4.5vw, 3rem);--fs-h2: clamp(1.625rem, 3vw, 2.25rem);--fs-h3: 1.625rem;--fs-h4: 1.25rem;--fs-body: 1rem;--fs-small: .875rem;--fs-xs: .75rem;--lh-heading: 1.2;--lh-body: 1.75;--lh-tight: 1.4;--fw-regular: 400;--fw-medium: 500;--fw-semibold: 600;--fw-bold: 700;--sp-xs: .25rem;--sp-sm: .5rem;--sp-md: 1rem;--sp-lg: 1.5rem;--sp-xl: 2rem;--sp-2xl: 3rem;--sp-3xl: 4rem;--sp-section: 5rem;--sp-section-mobile: 3rem;--container-max: 1200px;--container-pad: 1.5rem;--r-sm: 6px;--r-md: 8px;--r-lg: 12px;--r-xl: 16px;--r-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 2px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-card: 0 4px 16px rgba(0, 0, 0, .06);--t-fast: .2s ease;--t-base: .3s ease;--t-slow: .5s ease;--t-spring: .4s cubic-bezier(.16, 1, .3, 1);--header-h: 80px;--header-h-mobile: 60px;--z-header: 100;--z-overlay: 200;--z-modal: 300}@media(max-width:767px){:root{--fs-h3: 1.25rem;--fs-h4: 1.125rem;--sp-section: 3rem;--header-h: 60px;--container-pad: 1rem}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--f-body);font-size:var(--fs-body);line-height:var(--lh-body);color:var(--c-text);background-color:var(--c-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}a{color:inherit;text-decoration:none}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{overflow-wrap:break-word;line-height:var(--lh-heading)}:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}::selection{background-color:var(--c-primary);color:var(--c-white)}.container{width:100%;max-width:var(--container-max);margin-inline:auto;padding-inline:var(--container-pad)}.section{padding-block:var(--sp-section)}.section--alt{background-color:var(--c-bg-alt)}.section--warm{background-color:var(--c-bg-warm)}.section__header{text-align:center;margin-bottom:var(--sp-3xl)}.section__title{font-size:var(--fs-h2);font-weight:var(--fw-bold);color:var(--c-dark);margin-bottom:var(--sp-md);position:relative;text-wrap:balance}.section__title:after{content:"";display:block;width:48px;height:3px;background:var(--c-primary);margin:var(--sp-md) auto 0;border-radius:var(--r-full)}.section__title--left:after{margin-left:0}.section__subtitle{font-size:var(--fs-body);color:var(--c-text-secondary);max-width:640px;margin-inline:auto;line-height:var(--lh-tight)}.header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:var(--z-header);transition:background-color var(--t-base),box-shadow var(--t-base)}.header--scrolled{background-color:var(--c-white);box-shadow:var(--shadow-sm)}.header__inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--container-max);margin-inline:auto;padding-inline:var(--container-pad)}.header__logo{display:flex;align-items:center;gap:var(--sp-sm);font-size:1.25rem;font-weight:var(--fw-bold);color:var(--c-white);transition:color var(--t-base);z-index:calc(var(--z-header) + 1)}.header--scrolled .header__logo{color:var(--c-dark)}.header__logo-img{height:40px;width:auto;object-fit:contain}.header__nav{display:flex;align-items:center;gap:var(--sp-xl)}.header__nav-link{font-size:var(--fs-small);font-weight:var(--fw-medium);color:#ffffffd9;position:relative;padding:var(--sp-xs) 0;transition:color var(--t-base)}.header--scrolled .header__nav-link{color:var(--c-text-secondary)}.header__nav-link:after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t-base)}.header__nav-link:hover,.header__nav-link--active{color:var(--c-white)}.header--scrolled .header__nav-link:hover,.header--scrolled .header__nav-link--active{color:var(--c-primary)}.header__nav-link:hover:after,.header__nav-link--active:after{transform:scaleX(1)}.header__actions{display:flex;align-items:center;gap:var(--sp-md);z-index:calc(var(--z-header) + 1)}.lang-switch{display:none}.header__burger{display:none;flex-direction:column;gap:5px;width:24px;cursor:pointer;z-index:calc(var(--z-header) + 2)}.header__burger span{display:block;width:100%;height:2px;background:var(--c-white);border-radius:1px;transition:all var(--t-base)}.header--scrolled .header__burger span{background:var(--c-dark)}.header__burger--open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.header__burger--open span:nth-child(2){opacity:0}.header__burger--open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.mobile-nav{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:var(--c-white);z-index:var(--z-overlay);padding-top:calc(var(--header-h) + var(--sp-xl));opacity:0;pointer-events:none;transition:opacity var(--t-base)}.mobile-nav--open{opacity:1;pointer-events:auto}.mobile-nav__link{display:block;font-size:var(--fs-h3);font-weight:var(--fw-semibold);color:var(--c-dark);padding:var(--sp-md) var(--container-pad);border-bottom:1px solid var(--c-border);transition:all var(--t-fast)}.mobile-nav__link:hover,.mobile-nav__link--active{color:var(--c-primary);padding-left:calc(var(--container-pad) + var(--sp-md))}.footer{background-color:var(--c-dark);color:#ffffffb3;padding-top:var(--sp-3xl);padding-bottom:var(--sp-md)}.footer__grid{display:grid;grid-template-columns:1.5fr 1fr;gap:var(--sp-3xl);padding-bottom:var(--sp-2xl)}.footer__brand{display:flex;flex-direction:column;gap:var(--sp-md)}.footer__logo{font-size:1.25rem;font-weight:var(--fw-bold);color:var(--c-white)}.footer__tagline{font-size:var(--fs-small);line-height:var(--lh-tight);max-width:280px}.footer__col-title{font-size:var(--fs-body);font-weight:var(--fw-semibold);color:var(--c-white);margin-bottom:var(--sp-lg)}.footer__links{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-sm) var(--sp-xl)}.footer__link{font-size:var(--fs-small);transition:color var(--t-fast);position:relative;width:fit-content}.footer__link:after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:1px;background:var(--c-primary-light);transition:width var(--t-base)}.footer__link:hover{color:var(--c-primary-light)}.footer__link:hover:after{width:100%}.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:var(--sp-lg) 0;display:flex;justify-content:space-between;align-items:center;font-size:var(--fs-xs)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-sm);padding:12px 32px;border-radius:var(--r-md);font-size:var(--fs-body);font-weight:var(--fw-medium);transition:all var(--t-base);white-space:nowrap}.btn--primary{background:var(--c-primary);color:var(--c-white)}.btn--primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:0 4px 16px #3fa86b4d}.btn--secondary{background:transparent;border:2px solid var(--c-primary);color:var(--c-primary)}.btn--secondary:hover{background:var(--c-primary-light)}.btn--outline-white{border:2px solid rgba(255,255,255,.5);color:var(--c-white)}.btn--outline-white:hover{border-color:var(--c-white);background:#ffffff26}.btn--lg{padding:16px 40px;font-size:var(--fs-h4)}.btn:disabled{background:var(--c-disabled);color:var(--c-white);cursor:not-allowed;transform:none;box-shadow:none}.card{background:var(--c-white);border-radius:var(--r-lg);box-shadow:var(--shadow-card);padding:var(--sp-xl);transition:all var(--t-base)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.page-banner{position:relative;height:600px;display:flex;align-items:center;justify-content:center;background:linear-gradient(to right,var(--c-primary-dark) 0%,var(--c-primary) 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