/* 仅覆盖布局与互动状态，延续原站红、橙、黄、黑、白配色。 */
:root{--layout-gap:clamp(20px,3vw,40px);--layout-section:clamp(36px,5vw,64px)}
html{scroll-behavior:smooth;scroll-padding-top:100px}body{padding-top:68px;padding-bottom:112px;font-weight:500;line-height:1.8}.container{max-width:1120px;padding:24px clamp(16px,3vw,32px) 32px}.sticky-top-bar{height:60px;padding:8px 16px}.sticky-top-bar p{font-size:clamp(12px,1.5vw,16px);line-height:1.5}.sticky-top-bar .animate-pulse{animation:none}.sticky-bottom-bar{height:auto;min-height:88px;padding:12px 20px calc(12px + env(safe-area-inset-bottom))}.sticky-bottom-bar .pulse-button{max-width:720px;font-size:clamp(13px,1.8vw,18px);line-height:1.6;padding:13px 24px;white-space:normal;min-height:52px}.pulse-button{animation:none;transition:transform .2s,box-shadow .2s}.pulse-button:hover{transform:translateY(-2px);box-shadow:0 8px 22px #0003}.pulse-button:active{transform:translateY(0)}button,a,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #f77f00;outline-offset:5px}.section-nav{display:flex;justify-content:center;gap:12px 32px;flex-wrap:wrap;color:#fff;font-size:13px;margin-bottom:32px}.section-nav a{padding:8px 0;border-bottom:1px solid transparent}.section-nav a:hover{border-bottom-color:#facc15;color:#facc15}.original-hero{display:grid;grid-template-columns:205px minmax(0,1fr);column-gap:38px;text-align:left;align-items:center;margin:16px 0 36px}.original-hero>div:first-child{grid-column:1;grid-row:1 / 5;margin:0;text-align:center}.original-hero>div:first-child img{width:150px;height:150px;object-fit:cover;object-position:center 25%;border-width:3px}.original-hero>div:first-child h2{font-size:23px;margin-top:12px}.original-hero>div:first-child p{font-size:12px;line-height:1.7;margin-top:5px}.original-hero>h2{font-size:16px;line-height:1.7;margin-bottom:8px}.original-hero h1{font-size:clamp(29px,3.8vw,44px);line-height:1.4;letter-spacing:-1.5px;word-break:keep-all}.original-hero>p.text-white{font-size:16px;line-height:1.8;margin-top:15px}.original-hero>p.bg-yellow-300{grid-column:2;padding:10px 15px;border-radius:6px;font-size:13px;line-height:1.7;margin-top:18px}.text-shadow-heavy{text-shadow:1px 2px 3px #0005}.free-promotion{display:flex;align-items:center;gap:24px;padding:26px 30px;margin:0 0 32px;background:#111827;color:#fff;border:2px solid #facc15;border-radius:18px;box-shadow:0 12px 30px #0002}.promotion-badge{display:inline-block;background:#facc15;color:#111827;padding:3px 10px;border-radius:20px;font-size:10px;font-weight:800;letter-spacing:.05em}.promotion-copy h2{font-size:26px;line-height:1.4;margin-top:10px;font-weight:800}.promotion-copy h2 strong{color:#fde047}.promotion-copy p{font-size:12px;color:#d1d5db;margin-top:7px}.promotion-pills{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:10px;color:#fde047;margin-top:15px}.promotion-time{margin-left:auto;max-width:260px;text-align:center;flex-shrink:0}.promotion-time>span{font-size:11px;color:#fde047}.promotion-timer{font-size:34px;font-weight:900;line-height:1.6;font-variant-numeric:tabular-nums;letter-spacing:.03em;color:#fde047;white-space:nowrap}.promotion-timer small{font-size:12px;font-weight:500}.promotion-time p{font-size:10px;line-height:1.7;color:#d1d5db}.promotion-action{align-self:stretch;display:flex;align-items:center;justify-content:center;gap:14px;white-space:nowrap;color:#111827;background:#facc15;padding:12px 18px;border-radius:9px;font-size:12px;font-weight:800}.promotion-action:hover{transform:translateY(-2px)}main.bg-white{padding:var(--layout-gap);border-width:2px;border-radius:24px;box-shadow:0 20px 50px #0002}main>.mb-12{margin-bottom:var(--layout-section)}.speech-bubble{padding:24px 28px;border-width:1px;border-radius:14px;max-width:880px;margin:auto;background:#fff}.speech-bubble:after{display:none}.speech-bubble>.px-6{padding:0}.speech-bubble p{font-size:16px;font-weight:500;line-height:2.05;word-break:keep-all;overflow-wrap:anywhere}.speech-bubble p+p{margin-top:24px}.speech-bubble p strong{font-size:inherit;font-weight:800}.speech-bubble p>strong:first-child,.speech-bubble p>strong:nth-child(2){display:inline}main h3{font-size:clamp(22px,2.8vw,30px);line-height:1.5;letter-spacing:-.6px;margin-bottom:26px}main>.mb-8{margin:0 auto var(--layout-section);max-width:880px}main>.mb-8 img,main>.mb-12>img{max-height:560px;width:100%;object-fit:contain;background:#f3f4f6;border-width:1px}main img+p{padding:15px 20px;font-size:14px;line-height:1.9;margin-top:12px}main>.mb-12:has(>img){max-width:880px;margin-inline:auto}main>.mb-12>.space-y-6{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}main .space-y-6>div+div{margin-top:0}main .space-y-6>div{padding:22px;box-shadow:none}main .space-y-6 p+p{margin-top:10px;line-height:1.9}#free-benefits{padding:30px 24px;border-width:2px}#free-benefits .grid{gap:16px}#free-benefits .grid>div{padding:25px 20px;display:flex;flex-direction:column;align-items:center}#free-benefits .grid h4{font-size:17px;line-height:1.7}#free-benefits .grid p{font-size:13px;line-height:1.9;margin-top:auto}#free-benefits .grid .text-4xl{font-size:32px;margin-bottom:15px}#original-faq{max-width:880px;margin-inline:auto}#original-faq details{border:1px solid #e5e7eb;border-radius:10px;padding:18px 22px;background:#f3f4f6}#original-faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:15px}#original-faq summary::-webkit-details-marker{display:none}#original-faq summary:after{content:'+';font-size:22px;color:#b91c1c;flex-shrink:0}#original-faq details[open] summary:after{content:'−'}#original-faq summary h4{font-size:16px;line-height:1.8}#original-faq details p{margin-top:10px;padding:0;font-size:14px;line-height:1.9}#original-claim{padding:36px 28px;border-width:2px}#original-claim h3,#original-claim h4{font-size:clamp(25px,3.5vw,36px);line-height:1.5}#original-claim>.text-xl{font-size:18px}#original-claim>.text-base{font-size:15px;line-height:1.9}.claim-steps{display:flex;justify-content:center;gap:12px 28px;flex-wrap:wrap;margin-bottom:22px;color:#fff;font-size:12px}.claim-steps b{display:inline-grid;place-items:center;background:#facc15;color:#111827;border-radius:50%;width:25px;height:25px;margin-right:7px;font-size:10px}.copy-code{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;color:#fff;background:#0002;border:1px solid #ffffff40;border-radius:10px;padding:12px;margin:0 auto 26px;max-width:520px;font-size:12px}.copy-code strong{font-size:22px;color:#fde047;margin-left:8px}.copy-code button{background:#facc15;color:#111827;padding:8px 14px;border-radius:6px;font-weight:800;min-height:42px}#copy-status:not(:empty){flex-basis:100%;font-size:11px;color:#fde047}#countdown{display:flex;justify-content:center;gap:12px}#countdown>div{margin-inline:0;padding:15px 24px;min-width:90px}.countdown-number{font-size:36px}.countdown-label{margin-top:7px}.countdown-note{font-size:11px;color:#fff;margin:-8px 0 24px;font-weight:500}.back-to-top{position:fixed;right:22px;bottom:118px;width:44px;height:44px;border-radius:50%;background:#111827;color:#facc15;border:1px solid #facc15;font-size:23px;z-index:20;box-shadow:0 4px 12px #0003}footer{padding:20px 0 12px}footer p{color:#fff}footer p+p{max-width:820px;margin-inline:auto;line-height:1.9}.read-progress{position:fixed;left:0;top:0;height:3px;width:100%;transform:scaleX(0);transform-origin:left;background:#facc15;z-index:1001;pointer-events:none}
@media(max-width:900px){.original-hero{grid-template-columns:160px minmax(0,1fr);gap:12px 25px}.original-hero>div:first-child img{width:130px;height:130px}.free-promotion{flex-wrap:wrap}.promotion-action{align-self:center}.promotion-time{max-width:none}.promotion-copy{flex:1;min-width:240px}.promotion-action{min-height:46px}#free-benefits .grid{grid-template-columns:1fr}#free-benefits .grid>div{align-items:flex-start;text-align:left}.promotion-timer{font-size:30px}}
@media(max-width:600px){html{scroll-padding-top:82px}.container{padding:12px 14px 24px}body{padding-top:60px;padding-bottom:118px}.sticky-top-bar{height:54px}.section-nav{gap:6px 20px;font-size:11px;margin:0 0 22px}.original-hero{display:flex;flex-direction:column;gap:0;text-align:center;margin:0 0 26px}.original-hero>div:first-child{display:grid;grid-template-columns:78px 1fr;gap:0 14px;text-align:left;margin-bottom:24px;align-items:center}.original-hero>div:first-child img{width:78px;height:78px;grid-row:span 2}.original-hero>div:first-child h2{font-size:21px;margin-top:0;align-self:end}.original-hero>div:first-child p{font-size:11px;align-self:start;margin-top:4px}.original-hero>h2{font-size:13px;margin-bottom:9px}.original-hero h1{font-size:clamp(25px,6.8vw,37px);line-height:1.5;letter-spacing:-1px}.original-hero>p.text-white{font-size:13px;margin-top:12px;word-break:keep-all}.original-hero>p.bg-yellow-300{font-size:11px;width:100%;padding:11px 12px;margin-top:17px}.free-promotion{padding:20px;gap:20px;border-radius:14px;margin-bottom:22px}.promotion-copy{min-width:0;flex-basis:100%}.promotion-copy h2{font-size:25px}.promotion-copy p{font-size:11px}.promotion-pills{font-size:10px;gap:8px}.promotion-time{text-align:left;margin-left:0;flex:1;flex-shrink:1;min-width:0}.promotion-timer{font-size:25px;white-space:normal;overflow-wrap:anywhere}.promotion-time p{font-size:9px}.promotion-action{padding:12px;font-size:11px;gap:8px}main.bg-white{padding:22px 15px;border-radius:18px}.speech-bubble{padding:18px 15px}.speech-bubble p{font-size:14px;line-height:2}main h3{font-size:21px;margin-bottom:20px}main img+p{font-size:12px;padding:12px}main>.mb-12>.space-y-6{grid-template-columns:1fr;gap:15px}main .space-y-6>div{padding:18px}main .space-y-6 p{font-size:13px}#free-benefits{padding:23px 16px}#free-benefits .grid>div{padding:20px 17px}#free-benefits .grid h4{font-size:16px}#original-faq details{padding:15px}#original-faq summary h4{font-size:14px}#original-faq details p{font-size:13px}#original-claim{padding:24px 14px}#original-claim>.text-xl{font-size:16px}#original-claim>.text-base{font-size:13px}.claim-steps{gap:9px 12px;font-size:10px}.claim-steps b{width:21px;height:21px;margin-right:4px}#countdown{gap:8px}#countdown>div{padding:12px 14px;min-width:65px}.countdown-number{font-size:28px}.countdown-label{font-size:11px}#original-claim .pulse-button{font-size:15px;padding:15px 12px}.sticky-bottom-bar{min-height:94px;padding-inline:14px}.sticky-bottom-bar .pulse-button{font-size:12px;line-height:1.7;padding:12px 16px;border-radius:14px}.back-to-top{right:15px;bottom:118px;width:38px;height:38px;font-size:20px}footer p{font-size:11px}footer p+p{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* 小屏修正：按实际固定栏高度留白，支持文本放大和横屏。 */
body{padding-top:calc(var(--fixed-top-height,60px) + 8px);padding-bottom:calc(var(--fixed-bottom-height,100px) + 24px)}
html{scroll-padding-top:calc(var(--fixed-top-height,60px) + 20px);scroll-padding-bottom:calc(var(--fixed-bottom-height,100px) + 20px)}
.back-to-top{bottom:calc(var(--fixed-bottom-height,100px) + 18px)}
.container,.original-hero>* ,.free-promotion>*,#free-benefits .grid>*,.claim-steps>*,#countdown>*{min-width:0}
.sticky-top-bar{height:auto;min-height:54px;padding-block:12px}.sticky-top-bar p{overflow-wrap:anywhere}
.original-hero h1,.original-hero p,.promotion-copy,.promotion-time,#free-benefits h4,#original-faq summary h4,#original-claim p{overflow-wrap:anywhere}
@media(max-width:767px){
 .original-hero{display:flex;flex-direction:column;text-align:center;gap:0}.original-hero>div:first-child{margin-bottom:24px}.original-hero>p.bg-yellow-300{width:100%}
 main>.mb-12>.space-y-6{grid-template-columns:1fr}.section-nav a{min-height:44px;display:flex;align-items:center;justify-content:center}
 .sticky-bottom-bar{min-height:0}.sticky-bottom-bar .pulse-button{min-height:48px;font-size:13px;line-height:1.65;padding:10px 14px}
 #original-faq summary{min-height:44px}#copy-participation-code{min-height:44px}.back-to-top{width:44px;height:44px}
}
@media(max-width:480px){
 .container{padding:10px 12px 24px}.section-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin-bottom:18px;font-size:11px}.section-nav a{padding:4px 0;white-space:normal}
 .original-hero>div:first-child{max-width:100%;grid-template-columns:68px minmax(0,1fr);gap:0 12px;margin-bottom:20px}.original-hero>div:first-child img{width:68px;height:68px}.original-hero>div:first-child p{font-size:12px;word-break:keep-all;overflow-wrap:anywhere}
 .original-hero h1{font-size:clamp(23px,6.7vw,31px);letter-spacing:-.7px;line-height:1.45}.original-hero>p.text-white{font-size:14px;line-height:1.8}.original-hero>p.bg-yellow-300{font-size:12px;line-height:1.8;padding:10px}
 .free-promotion{display:grid;grid-template-columns:minmax(0,1fr);padding:18px 16px;gap:18px}.promotion-copy{width:100%}.promotion-copy p{font-size:13px;line-height:1.8}.promotion-pills{font-size:12px;gap:6px 12px}.promotion-time{width:100%;border-top:1px solid #ffffff30;padding-top:14px}.promotion-time>span{font-size:12px}.promotion-timer{font-size:30px;letter-spacing:0}.promotion-time p{font-size:12px}.promotion-action{width:100%;min-height:46px;font-size:14px}.promotion-badge{font-size:11px}
 main.bg-white{padding:20px 12px;border-radius:16px}.speech-bubble{padding:14px 12px}.speech-bubble p{font-size:15px;line-height:1.9;word-break:normal}.speech-bubble p+p{margin-top:20px}main>.mb-12{margin-bottom:32px}main h3{font-size:21px;overflow-wrap:anywhere;word-break:normal}main img+p{font-size:13px;padding:12px 10px}
 #free-benefits{padding:20px 12px}#free-benefits .grid>div{padding:18px 14px}#free-benefits .grid p{font-size:14px}main .space-y-6>div{padding:16px}main .space-y-6 p{font-size:14px}
 #original-faq details{padding:12px}#original-faq details p{font-size:14px}#original-claim{padding:22px 10px}#original-claim h3,#original-claim h4{font-size:25px}#original-claim>.text-base{font-size:14px}
 .claim-steps{display:grid;grid-template-columns:1fr;text-align:left;width:max-content;max-width:100%;margin-inline:auto;gap:10px;font-size:13px}.claim-steps b{width:25px;height:25px;font-size:11px;margin-right:8px}.copy-code{padding:10px 8px;gap:10px;font-size:13px}.copy-code>span:first-child{white-space:nowrap}
 #countdown{gap:6px;width:100%}#countdown>.countdown-box{flex:1;min-width:0;padding:12px 4px;border-radius:8px}.countdown-number{font-size:clamp(22px,8vw,30px)}.countdown-label{font-size:12px}.countdown-note{font-size:12px;line-height:1.8;margin-top:0}
 .sticky-bottom-bar{padding:9px 12px calc(9px + env(safe-area-inset-bottom))}.sticky-bottom-bar .pulse-button{border-radius:12px}.sticky-top-bar p{font-size:12px}.back-to-top{right:12px}footer p+p{font-size:12px}
}
@media(max-height:500px) and (max-width:950px){
 .sticky-top-bar{position:static}body{padding-top:0}html{scroll-padding-top:16px}.sticky-bottom-bar{padding-block:6px}.sticky-bottom-bar .pulse-button{font-size:12px;padding-block:7px;min-height:44px}.back-to-top{width:44px;height:44px}
}

/* 防止免费权益区域的 flex 列被压缩成单字宽度。 */
.free-promotion{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,260px) auto;align-items:center}
.free-promotion>.promotion-copy,.free-promotion>.promotion-time{min-width:0;width:auto;margin-left:0;max-width:100%}
.free-promotion>.promotion-time{overflow-wrap:break-word;word-break:normal}
.free-promotion>.promotion-time>span,.free-promotion>.promotion-time>p{display:block;white-space:normal;word-break:keep-all;overflow-wrap:break-word}
.free-promotion .promotion-timer{white-space:normal;overflow-wrap:break-word;word-break:normal}
@media(max-width:1000px){
 .free-promotion{grid-template-columns:minmax(0,1fr) minmax(180px,240px)}
 .free-promotion>.promotion-action{grid-column:1 / -1;min-height:46px;align-self:auto}
}
@media(max-width:767px){
 .free-promotion{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;height:auto;min-height:0}
 .free-promotion>.promotion-copy,.free-promotion>.promotion-time,.free-promotion>.promotion-action{grid-column:1;min-width:0;width:100%;max-width:100%;height:auto;min-height:0;margin:0}
 .free-promotion>.promotion-time{border-top:1px solid #ffffff30;padding-top:14px;text-align:left}
 .free-promotion>.promotion-action{min-height:46px}
 .free-promotion>.promotion-time>span{font-size:12px;line-height:1.8}
 .free-promotion>.promotion-time>p{font-size:12px;line-height:1.8}
 .free-promotion .promotion-timer{font-size:30px;line-height:1.5;letter-spacing:0}
 .free-promotion .promotion-timer small{display:inline-block;font-size:13px}
}

/* 暖米色背景：保留原有重点色，调整背景上的文字以维持对比度。 */
body.gradient-bg{background:#f5f1e9;color:#1f2937}
.section-nav{color:#4b5563}.section-nav a:hover{color:#b91c1c;border-bottom-color:#d62828}
.original-hero .text-white{color:#1f2937}.original-hero .text-shadow-heavy{text-shadow:none}
.original-hero h1>.text-yellow-300{color:#b91c1c}
footer p{color:#4b5563}