:root{--blue:#0069ff;--ink:#172c45;--muted:#65758a;--line:#e5edf6;--shadow:0 8px 24px #284d7a0a,0 2px 5px #284d7a05}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:16px}body{margin:0;background:#e8f0fa;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:800}img{display:block;max-width:100%}.page{width:100%;max-width:480px;margin:auto;background:radial-gradient(ellipse 100% 350px at 60% 0,#c9e0ff,transparent),#f6f9fd;overflow:hidden;padding-bottom:110px}header{display:flex;align-items:center;justify-content:space-between;padding:18px 18px 9px}.brand{font-size:11px;font-weight:800;letter-spacing:.5px;display:flex;align-items:center;gap:7px}.brand i{width:17px;height:17px;background:var(--blue);border-radius:6px;box-shadow:0 3px 8px #0069ff2b}.rule-link{font-size:12px;color:#536b85}.kv{position:relative;height:146px;padding:17px 19px;background:linear-gradient(90deg,#dbeaff 0%,#dbeaffef 37%,#dbeaff00 90%),url('../assets/images/campaign-kv.png') right 43%/auto 235%;border-radius:0 0 30px 30px}.year{font-size:11px;color:#5d7995;letter-spacing:1px}.kv h1{font-size:28px;line-height:1.3;margin-top:9px;letter-spacing:-1px}.kv h1 span{color:#0062cf}.hero-content{padding:16px 16px 0}.threshold-heading{display:flex;justify-content:space-between;align-items:center;gap:5px}.threshold-heading h2{font-size:17px}.threshold-heading>span{font-size:11px;color:var(--muted)}.threshold-track{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:3px;padding:15px 0 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13px;text-align:center}.highlight>span{font-size:13px;font-weight:600;margin-top:8px;white-space:nowrap}.highlight>b{color:#075fd0;font-size:27px;line-height:1.3;letter-spacing:-1px;margin-top:4px;white-space:nowrap}.highlight small{font-size:10px;font-weight:500;letter-spacing:0}.highlight .words{font-size:16px;letter-spacing:-.5px;line-height:2.2}.highlight p{font-size:11px;color:var(--muted);line-height:1.5;margin-top:4px;min-height:32px}.mini-art{width:42px;height:33px;border-radius:9px;background:linear-gradient(130deg,#fff,#c1deff);border:1px solid #fff;box-shadow:0 5px 9px #4276ba1f,inset 0 -2px 1px #b0cdf338;display:grid;place-items:center;color:#1271de;transform:rotate(-10deg);font-size:22px;font-weight:750}.mini-gift{transform:rotate(10deg);background:linear-gradient(140deg,#eff7ff,#a9ccff);color:#307dea}.mini-event{transform:rotate(-7deg);border-radius:50%;width:35px;height:35px}.signup-button{height:50px;min-height:50px;width:100%;border:0;border-radius:100px;background:linear-gradient(110deg,#087eff,#0050f8);color:#fff;font-size:16px;font-weight:750;display:flex;align-items:center;justify-content:center;gap:24px;box-shadow:0 7px 15px #0069ff30,inset 0 1px 1px #ffffff66}.hero-content>.signup-button{margin-top:14px}.signup-button>span{font-size:20px;font-weight:400}.benefit-nav{display:flex;gap:8px;justify-content:space-between;margin:22px 16px 7px}.benefit-nav a{display:flex;align-items:center;justify-content:center;gap:6px;background:#fff;padding:7px 9px;border-radius:50px;box-shadow:var(--shadow);font-size:12px;font-weight:650;flex:1;white-space:nowrap;border:1px solid #fff}.benefit-nav i{font-style:normal;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#eef5ff;color:var(--blue);font-size:14px}.benefit-nav a:first-child i{background:var(--blue);color:white;box-shadow:0 3px 7px #0069ff30}.benefits{padding:0 14px}.benefit-card{margin-top:17px;padding:16px 12px 15px;background:#fff;border-radius:25px;border:1px solid #ffffff;box-shadow:var(--shadow);scroll-margin-top:15px}.card-heading{display:flex;align-items:center;justify-content:space-between;padding:0 3px 14px;gap:8px}.eyebrow{display:block;font-size:12px;color:#6c7e94;margin-bottom:6px;font-weight:600}.card-heading h2{font-size:21px;letter-spacing:-.5px}.circle-arrow{flex:none;display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#f2f6fa;color:#6d7d90;font-size:18px}.coupon-scene,.gift-scene{height:173px;position:relative;border-radius:19px;overflow:hidden;background:radial-gradient(ellipse at 80% 5%,#fff 0%,transparent 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b{display:block;font-size:13px;white-space:nowrap}.sticky-inner>div>span{display:block;font-size:11px;margin-top:5px;color:#6e8198}.sticky .signup-button{width:46%;flex:none}dialog{border:1px solid #fff;border-radius:26px;width:calc(100% - 40px);max-width:350px;background:#f6faff;color:var(--ink);padding:30px 22px 22px;text-align:center;box-shadow:0 24px 80px #12385933}dialog::backdrop{background:#112d4c66;backdrop-filter:blur(7px)}dialog h2{font-size:23px}dialog p{font-size:14px;color:#697d94;line-height:1.8;margin:15px 0 20px}.close{position:absolute;right:14px;top:8px;background:none;border:0;font-size:26px;color:#8091a3}.dialog-symbol{font-size:38px;color:var(--blue);margin-bottom:15px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #68a9ff;outline-offset:4px}@keyframes slide-in{from{transform:translateY(100%)}to{transform:translateY(0)}}@media(max-width:360px){.kv h1{font-size:26px}.hero-content{padding-left:12px;padding-right:12px}.threshold-heading 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/* V11：首屏礼遇橱窗，活动说明与五档阶梯后置 */
.page{background:radial-gradient(ellipse 100% 540px at 45% 0,#e1ecfa 10%,#f6f9fd 85%),#f6f9fd}header{padding:16px 20px 4px}.hero-v11{position:relative;padding-top:12px;background:radial-gradient(ellipse at 45% 55%,#fff8 0,transparent 65%)}.hero-copy{padding:0 22px}.campaign-year{font-size:11px;font-weight:600;letter-spacing:2px;color:#6b83a1}.hero-copy h1{font-size:clamp(26px,7.25vw,35px);font-weight:850;line-height:1.35;letter-spacing:-1px;margin-top:10px;color:#19344f}.hero-copy h1>span{color:#075bbb}.rewards-showcase{position:relative;height:316px;margin:4px 0 0;isolation:isolate;overflow:hidden;container-type:inline-size}.showcase-halo{position:absolute;inset:12px 5% 12px;background:radial-gradient(ellipse,#fff 12%,#dceaff80 55%,transparent 72%);z-index:-3}.showcase-orbit{position:absolute;width:86%;height:184px;top:55px;left:7%;border:1px solid #c8d8eb77;border-radius:50%;transform:rotate(-18deg);z-index:-2}.showcase-plinth{position:absolute;width:81%;height:50px;left:9.5%;top:245px;border-radius:50%;background:linear-gradient(#fff,#d0ddec);box-shadow:0 17px 26px #245c9720,inset 0 -5px 4px #c7d5e750;z-index:-1}.showcase-coupon{position:absolute;left:6%;top:24px;width:45%;height:177px;border-radius:16px;background:linear-gradient(120deg,#fff 3%,#eef6ff 40%,#d3e6fb);border:1px solid #fff;box-shadow:0 14px 25px #24599320,inset 0 0 0 4px #ffffff44;transform:rotate(-11deg);padding:17px 16px;color:#075ab5}.object-label{font-size:13px;font-weight:650}.showcase-coupon strong{display:block;font-size:58px;line-height:1.05;letter-spacing:-2px;margin:6px 0 3px}.showcase-coupon strong small{font-size:12px;font-weight:600;letter-spacing:0;margin-right:4px}.object-caption{font-size:10px;color:#6388af}.coupon-tear{position:absolute;left:0;right:0;bottom:43px;border-top:1px dashed #93b6dc}.coupon-ai{position:absolute;bottom:11px;left:16px;right:16px;display:flex;align-items:center;justify-content:space-between}.coupon-ai b{font-size:18px}.coupon-ai>span{font-size:11px;color:#6485aa}.showcase-ecard{position:absolute;right:6%;top:78px;width:51%;height:140px;border:1px solid #8cbef0;border-radius:17px;background:linear-gradient(120deg,#2688dd,#0b59af 70%,#054b9c);box-shadow:0 15px 24px #0b478333,inset 0 1px 1px #c3e3ffcc,inset 0 -2px 2px #003b7f66;transform:rotate(11deg);padding:17px 15px;color:#e7f4ff;z-index:2}.showcase-ecard:after{content:'';position:absolute;inset:6px;border:1px solid #ffffff18;border-radius:12px;pointer-events:none}.showcase-ecard>.object-label{font-size:12px;letter-spacing:1px}.showcase-ecard strong{display:block;font-size:36px;letter-spacing:-1.5px;margin:11px 0 8px;white-space:nowrap}.showcase-ecard strong small{font-size:10px;letter-spacing:0;font-weight:400;margin-right:3px}.ecard-chip{position:absolute;top:17px;right:17px;width:22px;height:17px;border:1px solid #c6d5e0;border-radius:4px;background:linear-gradient(135deg,#edf4f5,#98bad2)}.ecard-chip:after{content:'';position:absolute;top:5px;left:0;right:0;border-top:1px solid #90adc5}.ecard-bottom{display:flex;justify-content:space-between;align-items:center}.ecard-bottom b{font-size:10px;letter-spacing:2px;font-weight:500}.ecard-bottom>span{font-size:25px;color:#ddba73;line-height:1}.showcase-invite{position:absolute;left:19%;top:173px;width:43%;height:106px;transform:rotate(-4deg);border-radius:10px;border:1px solid #fff;background:linear-gradient(125deg,#fffef8,#f0e7d3);box-shadow:0 12px 18px #34465420;padding:12px 14px;color:#775c2f;z-index:3}.showcase-invite:before{content:'';position:absolute;inset:5px;border:1px solid #d6c7a466;border-radius:6px;pointer-events:none}.invite-top{font-size:9px;letter-spacing:3px;display:block}.invite-seal{position:absolute;right:12px;top:7px;color:#be9852;font-size:23px}.showcase-invite strong{display:block;font-size:19px;letter-spacing:0;margin:12px 0 7px}.showcase-invite>span:last-child{font-size:10px;letter-spacing:.2px}.showcase-label{position:absolute;font-size:10px;color:#557393;display:flex;gap:5px;align-items:center;white-space:nowrap;z-index:4}.showcase-label i{font-style:normal;font-size:9px;color:#86a3c1}.showcase-label b{font-weight:600}.label-one{left:9%;top:6px}.label-two{right:5%;top:49px}.label-three{right:4%;top:257px}.showcase-spark{position:absolute;color:#b3965f;font-weight:400}.spark-a{left:4%;top:217px;font-size:28px}.spark-b{right:8%;top:10px;font-size:33px;color:#99b8da}.hero-action{padding:0 20px 20px}.hero-action .signup-button{height:52px;min-height:52px;font-size:17px;letter-spacing:.4px;box-shadow:0 8px 18px #0062df30,inset 0 1px 1px #ffffff80}.activity-intro{margin:6px 16px 21px;padding:20px 16px 18px;background:#fff;border-radius:24px;box-shadow:var(--shadow)}.section-title>span{font-size:12px;color:#6b819c;font-weight:650}.section-title h2{font-size:19px;letter-spacing:-.5px;margin-top:6px;line-height:1.4}.steps-inline{display:flex;align-items:center;justify-content:space-between;gap:5px;font-size:11px;color:#526d8b;margin-top:18px;padding-bottom:19px;border-bottom:1px solid #e9eff6}.steps-inline>span{display:flex;align-items:center;gap:5px;white-space:nowrap}.steps-inline i{font-size:10px;background:#eef5ff;color:#1766c7;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;font-style:normal;font-weight:700}.steps-inline>b{font-weight:400;color:#9bb0c8}.ladder-heading{display:flex;align-items:center;justify-content:space-between;margin-top:18px}.ladder-heading h3{font-size:16px}.ladder-heading>span{font-size:11px;color:#6b819c}.spend-ladder{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:end;gap:7px;margin-top:17px}.spend-ladder>div{display:flex;align-items:center;flex-direction:column;gap:7px;position:relative}.ladder-level{font-size:11px;font-weight:750;color:#4575a9}.ladder-bar{height:calc(15px + var(--level)*9px);width:100%;background:linear-gradient(140deg,#aad3ff,#5f9fdf);border-radius:6px 6px 2px 2px;box-shadow:inset 0 1px 0 #ffffffaa}.spend-ladder>div:last-child .ladder-bar{background:linear-gradient(140deg,#3e93e8,#0757b7)}.spend-ladder b{font-size:12px;white-space:nowrap;letter-spacing:-.3px}.benefit-card{margin-top:16px}.card-heading h2{font-size:20px}.sticky-inner>div{display:none}.sticky-inner{padding:10px 20px}.sticky .signup-button{width:100%;height:52px;min-height:52px;font-size:17px;letter-spacing:.4px}.life-grid{grid-template-columns:repeat(3,minmax(0,1fr))}@media(max-width:360px){.hero-copy{padding-left:18px;padding-right:18px}.hero-copy h1{font-size:26px}.rewards-showcase{height:302px}.showcase-coupon{padding-left:13px;width:46%;height:169px}.showcase-coupon strong{font-size:52px}.showcase-ecard{padding:15px 12px;height:134px;right:5%;top:81px;width:52%}.showcase-ecard strong{font-size:32px}.showcase-invite{width:45%;left:17%;height:101px}.showcase-invite strong{font-size:17px}.showcase-invite>span:last-child{font-size:9px}.showcase-plinth{top:237px}.label-three{top:257px;right:3%;font-size:9px}.activity-intro{margin-left:12px;margin-right:12px;padding-left:13px;padding-right:13px}.section-title h2{font-size:18px}.steps-inline{font-size:10px;gap:3px}.steps-inline i{width:17px;height:17px;font-size:9px}.spend-ladder b{font-size:11px}.card-heading h2{font-size:18px}.hero-action,.sticky-inner{padding-left:16px;padding-right:16px}}
/* 错开前后物件，确保券上的AI权益完整露出 */
.showcase-invite{top:195px}.showcase-plinth{top:266px}.label-three{top:282px}.spark-a{top:235px}@media(max-width:360px){.showcase-invite{top:190px}.showcase-plinth{top:257px}.label-three{top:276px}}

a.brand{color:inherit;text-decoration:none;cursor:pointer;transition:opacity .15s}
a.brand:active{opacity:.6}