/* 邀请函样式独立于运营台, 信封使用CSS折面和纸张构成 */
.brand-logo,.paper-logo,.signoff-logo,.envelope-seal img{display:block;object-fit:contain;flex-shrink:0}
.invitation-brand .brand-logo{width:48px;height:48px}
.envelope-seal img{width:44px;height:44px}
.paper-logo{width:30px;height:30px}
.signoff-logo{width:37px;height:37px}
.letter-end .signoff-logo{display:inline-block;width:26px;height:26px;margin-left:10px;vertical-align:middle}
@media(max-width:720px){.invitation-brand .brand-logo{width:40px;height:40px}.envelope-seal img{width:36px;height:36px}.paper-logo{width:23px;height:23px}}
.apply-body{--ink:#253e34;--green:#365d4a;--soft:#718174;--paper:#f4f1e9;--line:#dcded1;background:radial-gradient(ellipse at 83% 35%,#e1e7d87a,transparent 43%),repeating-linear-gradient(0deg,#a89c7d04 0px,#a89c7d04 1px,transparent 1px,transparent 4px),var(--paper);color:var(--ink);font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:17px;min-height:100dvh}
.invitation-header{max-width:1320px;margin:auto;padding:30px 52px;display:flex;justify-content:space-between;align-items:center;gap:20px}.invitation-brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:650;letter-spacing:3px}.invitation-brand small{display:block;font-size:12px;letter-spacing:3px;font-weight:400;margin-top:1px;color:#727d6d}.brand-flower{font-size:47px;line-height:1;font-weight:400}.recruiting{display:flex;align-items:center;gap:9px;font-size:14px;color:#546b58}.recruiting i{height:6px;width:6px;border-radius:50%;background:#6d8461;box-shadow:0 0 0 5px #6d84610e}.invitation-cover{max-width:1320px;margin:0 auto;padding:60px 52px 0;display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center;min-height:calc(100dvh - 195px)}
.letter-eyebrow{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:2.2px;color:#71816b;font-weight:600;margin:0}.letter-eyebrow>span{display:inline-block;width:25px;height:1px;background:#859776}.cover-copy h1{font-family:"Noto Serif SC","Songti SC","SimSun",serif;font-size:clamp(36px,4.3vw,61px);font-weight:400;line-height:1.5;letter-spacing:-1px;margin:25px 0}.cover-copy h1>span{color:#577852;position:relative;white-space:nowrap}.cover-copy h1>span::after{content:"";position:absolute;bottom:-8px;left:0;right:0;height:8px;border-top:1px solid #9aaa83;border-radius:50%;transform:rotate(-2deg)}.cover-description{font-size:18px;line-height:2.05;color:#687365;margin:28px 0}.cover-signature{display:flex;align-items:center;gap:14px;color:#71816b;font-size:14px;margin-top:36px}.signature-line{height:1px;width:34px;background:#bac2ad}.cover-bottom{grid-column:1/-1;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;padding:23px 0 8px;font-size:13px;color:#828b79;letter-spacing:.5px;align-self:end;margin-top:55px}.cover-bottom>span:last-child{letter-spacing:2px;font-size:11px}
.envelope-scene{position:relative;text-align:center;padding:85px 0 0;min-width:0}.postmark{position:absolute;right:12px;top:2px;width:112px;height:112px;border:1px solid #9aa58772;outline:1px solid #9aa58772;outline-offset:-6px;border-radius:50%;display:flex;flex-direction:column;justify-content:center;align-items:center;line-height:1.8;letter-spacing:2px;color:#7c8c69;font-size:13px;transform:rotate(13deg)}.postmark b{font-size:9px;font-weight:500;letter-spacing:1px;border-top:1px solid #9aa58772;border-bottom:1px solid #9aa58772;margin:3px 0}.postmark>span{font-size:8px;letter-spacing:.5px}.envelope-button{position:relative;display:block;width:min(420px,100%);aspect-ratio:1.52;margin:15px auto 0;padding:0;border:0;background:transparent;perspective:1000px;isolation:isolate;cursor:pointer;color:var(--ink);-webkit-tap-highlight-color:transparent;transition:transform .3s}.envelope-button:hover{transform:translateY(-5px) rotate(-1deg)}.envelope-button:focus-visible{outline:2px solid #8a9e71;outline-offset:20px;border-radius:8px}.envelope-button>span:not(.envelope-seal):not(.envelope-address){position:absolute;display:block}.envelope-shadow{inset:auto 5% -22px;height:25px;border-radius:50%;background:#52644133;filter:blur(17px);z-index:0}.envelope-back{inset:0;background:#46664e;border-radius:7px;box-shadow:0 18px 36px #3c4f3926;z-index:1}.invitation-paper{left:7%;right:7%;top:6%;bottom:5%;background:#fffdf6;z-index:2;border-radius:3px;box-shadow:0 -2px 8px #213f291a;transition:transform .65s cubic-bezier(.22,.8,.3,1) .28s}.paper-border{display:flex;position:absolute;inset:12px;flex-direction:column;align-items:center;justify-content:center;border:1px solid #dbddcb;line-height:1.7}.paper-star{font-size:30px;color:#6b8355}.paper-eyebrow{font-size:9px;letter-spacing:2px;margin:5px 0}.paper-border strong{font-family:"SimSun",serif;font-size:24px;font-weight:400}.paper-rule{width:35px;height:1px;background:#c7cdb4;margin:12px 0}.paper-caption{font-size:10px;color:#7d856e;letter-spacing:1px}.envelope-front{inset:0;background:#7d926e;z-index:3;border-radius:0 0 7px 7px;clip-path:polygon(0 0,50% 53%,100% 0,100% 100%,0 100%)}.envelope-left{inset:0;z-index:4;background:linear-gradient(145deg,#91a67d,#718968);clip-path:polygon(0 0,53% 53%,0 100%);border-radius:7px}.envelope-right{inset:0;z-index:4;background:linear-gradient(230deg,#94a881,#718968);clip-path:polygon(100% 0,47% 53%,100% 100%);border-radius:7px}.envelope-bottom{inset:0;z-index:5;background:linear-gradient(165deg,#90a77e,#7d966c);clip-path:polygon(0 100%,50% 45%,100% 100%);border-radius:7px}.envelope-flap{inset:0;z-index:6;background:linear-gradient(180deg,#a3b692,#879f77);clip-path:polygon(0 0,100% 0,50% 55%);transform-origin:top;transition:transform .65s cubic-bezier(.3,.1,.2,1),z-index 0s .25s;backface-visibility:visible;border-radius:7px}.envelope-seal{position:absolute;z-index:7;left:50%;top:51%;width:62px;height:62px;transform:translate(-50%,-50%) rotate(-9deg);border-radius:50%;background:radial-gradient(circle at 30% 25%,#ddd0a4,#bba675 70%,#a99465);box-shadow:0 3px 5px #42523444,inset 0 0 0 3px #b8a46f,inset 0 0 0 5px #e0d2a155;color:#85754c;display:grid;place-items:center;transition:opacity .16s,transform .35s}.envelope-seal span{font-size:36px;line-height:1;text-shadow:0 1px #e8dab8}.envelope-address{position:absolute;bottom:25px;left:0;right:0;z-index:7;color:#f6f2ddcf;font-size:10px;letter-spacing:3px}.open-caption{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:45px;color:#5c7354;font-size:15px}.open-caption p{margin:0}.caption-spark{font-size:24px}.caption-line{width:28px;height:1px;background:#9aaa83}.invitation-link{display:inline-flex;align-items:center;gap:14px;background:none;border:0;padding:12px 4px;color:#73816b;font-size:14px;line-height:1.5;border-bottom:1px solid transparent}.invitation-link:hover{color:#294c36;border-bottom-color:#839776}.envelope-button:disabled{opacity:1}.envelope-button.is-opening{transform:none;cursor:default}.envelope-button.is-opening .envelope-flap{transform:rotateX(180deg);z-index:1}.envelope-button.is-opening .envelope-seal{opacity:0;transform:translate(-50%,-65%) scale(.7)}.envelope-button.is-opening .invitation-paper{transform:translateY(-52%)}.envelope-button.is-opening .envelope-shadow{opacity:.6}
/* 展开后进入独立的回信表单, 焦点和滚动位置由脚本同步 */
.application-panel{max-width:1200px;margin:32px auto 65px;padding:0 52px;display:grid;grid-template-columns:.8fr 1.4fr;align-items:start;gap:65px;animation:letter-arrive .65s ease both}.letter-aside{position:sticky;top:45px;padding-top:22px}.letter-aside h2{font-family:"SimSun",serif;font-size:37px;font-weight:400;line-height:1.55;letter-spacing:.5px;margin:23px 0}.letter-aside>p{color:#74806d;font-size:16px;line-height:2.05}.letter-steps{padding:0;margin:35px 0 0;list-style:none;display:grid;gap:24px}.letter-steps li{display:flex;gap:16px;font-size:16px;align-items:flex-start}.letter-steps li>span{font-family:Georgia,serif;color:#92a07d;font-size:17px;padding-top:1px}.letter-steps small{display:block;font-size:14px;color:#77816e;margin-top:5px;line-height:1.75}.aside-signoff{display:flex;gap:15px;align-items:center;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}.aside-signoff>span{font-size:37px;color:#6d8560}.aside-signoff p{margin:0;font-family:"SimSun",serif;font-size:21px}.aside-signoff small{display:block;font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:12px;color:#7c876e;margin-top:8px;letter-spacing:1px}.letter-aside>.invitation-link{margin-top:22px}.letter-form-card{background:#fffef9;border:1px solid #e4e3d8;border-radius:4px;padding:38px 40px;position:relative;box-shadow:0 12px 45px #4a52310a,5px 5px 0 #ececdf,6px 6px 0 #dcded0;min-width:0}.letter-form-card::before{content:"";position:absolute;left:25px;right:25px;top:0;height:3px;background:repeating-linear-gradient(90deg,#708767 0 14px,transparent 14px 25px)}.form-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.form-duration{font-size:13px;color:#7c876e;background:#edf1e5;border-radius:4px;padding:4px 10px}.letter-form-card h2{font-family:"SimSun",serif;font-weight:400;font-size:33px;margin:16px 0 9px;line-height:1.5}.letter-form-card h2:focus{outline:none}.form-subtitle{font-size:16px;color:#76806d;margin:0 0 22px}.form-progress{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:#7c8572;border-bottom:1px solid #e3e5d9;padding-bottom:20px}.form-progress>span:last-child{color:#52704b}.survey-section{border:0;padding:0;margin:26px 0 0;min-width:0}.survey-section legend{font-size:18px;font-weight:600;margin-bottom:20px;padding:0;display:flex;gap:11px;align-items:center}.survey-section legend>span{font:14px Georgia,serif;color:#8c9a79}.apply-body .form-grid{gap:19px 18px}.apply-body .form-grid label{font-size:16px;font-weight:500;gap:8px}.apply-body input,.apply-body select,.apply-body textarea{background:#fffef9;border:1px solid #dadfd0;border-radius:6px;padding:12px 13px;min-height:48px;color:#324a3a;font-size:16px;box-shadow:0 1px 2px #42503403}.apply-body input::placeholder,.apply-body textarea::placeholder{color:#949d8b;font-size:15px}.apply-body input:focus,.apply-body textarea:focus,.apply-body select:focus{border-color:#819975;outline:3px solid #96ab791c;background:#fff}.apply-body .optional{font-size:12px;border:1px solid #e0e4d7;border-radius:4px;padding:1px 5px;color:#859177;margin-left:6px}.apply-body .field-note{font-size:13px;color:#8a937e}.contact-note{font-size:13px;color:#89917b;line-height:1.8;margin:13px 0 0}.apply-body .privacy-note{font-size:13px;color:#87917c;line-height:1.9;border-top:1px solid #e5e6dc;padding-top:20px;margin-top:20px}.letter-submit{margin-top:18px;background:#355a45;color:#fffdf2;border:1px solid #355a45;border-radius:6px;width:100%;padding:14px 21px;min-height:54px;font-size:17px;display:flex;align-items:center;justify-content:space-between;transition:background .2s,transform .2s}.letter-submit:hover{background:#284b37;transform:translateY(-1px)}.letter-submit:disabled{transform:none}.letter-submit>span:last-child{font-size:22px}.apply-body .error{font-size:15px;margin:12px 0 0}.letter-success{text-align:center;padding:60px 0}.received-stamp{width:76px;height:76px;border:1px solid #839476;border-radius:50%;outline:1px solid #839476;outline-offset:-7px;display:grid;place-items:center;margin:0 auto 30px;color:#55724b;font-size:32px;transform:rotate(-12deg)}.letter-success .letter-eyebrow{justify-content:center;font-size:11px}.letter-success h2{font-size:39px;margin:22px 0}.letter-success>p:not(.letter-eyebrow){font-size:16px;line-height:2;color:#738069}.success-note{font-size:14px;color:#5b7251;background:#eff2e7;padding:15px;border-radius:5px;margin:28px 0}.letter-end{font-family:"SimSun",serif;font-size:21px;display:block;margin-top:36px}.letter-end>span{margin-left:12px;color:#72885c}.invitation-footer{max-width:1216px;margin:0 auto;padding:27px 0 30px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#8c957e;letter-spacing:1px}.invitation-footer>span:last-child{letter-spacing:2px;font-size:10px}.no-script-note{text-align:center;padding:20px;color:#687365}
@keyframes letter-arrive{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1400px){.invitation-cover{padding-top:75px;padding-bottom:20px}.cover-copy h1{font-size:64px}.envelope-button{width:440px}}
@media(max-width:1000px){.invitation-header{padding:25px 30px}.invitation-cover{padding:45px 30px 0;gap:24px}.cover-copy h1{font-size:43px}.envelope-button{width:350px}.envelope-scene{padding-top:70px}.postmark{right:0;top:-15px;width:95px;height:95px}.application-panel{padding:0 30px;gap:30px;grid-template-columns:.8fr 1.5fr}.letter-form-card{padding:28px}.letter-aside h2{font-size:30px}.invitation-footer{padding:25px 30px}.cover-description{font-size:17px}}
@media(max-width:720px){.invitation-header{padding:23px 22px}.invitation-brand{font-size:21px;gap:9px}.brand-flower{font-size:37px}.invitation-brand small{font-size:10px;letter-spacing:2px}.recruiting{font-size:11px;gap:7px}.invitation-cover{display:flex;flex-direction:column;align-items:stretch;padding:30px 24px 0;gap:0;min-height:0}.cover-copy{text-align:center}.letter-eyebrow{font-size:10px;letter-spacing:1.4px}.cover-copy>.letter-eyebrow{justify-content:center}.cover-copy h1{font-size:38px;line-height:1.5;letter-spacing:0;margin:19px 0}.cover-description{font-size:16px;line-height:1.9;margin:23px 0 0}.cover-signature{display:none}.envelope-scene{padding:65px 10px 0;max-width:440px;width:100%;margin:0 auto}.envelope-button{width:100%;max-width:330px}.postmark{right:0;top:14px;width:73px;height:73px;font-size:10px;transform:rotate(16deg)}.postmark b{font-size:7px}.postmark>span{font-size:6px}.envelope-seal{width:52px;height:52px}.envelope-seal span{font-size:30px}.envelope-address{bottom:20px;font-size:8px;letter-spacing:2px}.paper-border{inset:9px}.paper-star{font-size:23px}.paper-eyebrow{font-size:8px;margin:2px 0}.paper-border strong{font-size:21px}.paper-rule{margin:7px 0}.paper-caption{font-size:8px}.open-caption{margin-top:27px;font-size:14px}.cover-bottom{margin-top:32px;display:block;text-align:center;padding-top:18px;font-size:11px}.cover-bottom>span:last-child{display:none}.invitation-footer{padding:20px 24px 25px;justify-content:center;font-size:11px}.invitation-footer>span:last-child{display:none}.application-panel{display:block;margin:10px auto 35px;padding:0 18px;max-width:580px}.letter-aside{position:static;padding:10px 10px 25px}.letter-aside>.letter-eyebrow{font-size:10px}.letter-aside h2{font-size:30px;margin:14px 0 10px;line-height:1.5}.letter-aside h2 br{display:block}.letter-aside>p{font-size:15px;margin:0;line-height:1.9}.letter-steps,.aside-signoff{display:none}.letter-aside>.invitation-link{font-size:12px;margin-top:12px;padding:5px 0}.letter-form-card{padding:28px 23px}.letter-form-card h2{font-size:29px}.form-subtitle{font-size:15px}.form-progress{font-size:12px}.form-duration{font-size:12px}.apply-body .form-grid{gap:18px 14px}.survey-section:first-of-type .form-grid>label{grid-column:1/-1}.survey-section legend{font-size:17px}.letter-success{padding:38px 0}.letter-success h2{font-size:35px}.letter-success>p:not(.letter-eyebrow){font-size:15px}}
@media(prefers-reduced-motion:reduce){.envelope-button,.envelope-button *,.application-panel,.letter-submit{animation:none!important;transition:none!important}.envelope-button:hover,.letter-submit:hover{transform:none}}

/* 回执成为提交后的主内容, 手机无需滚过邀请介绍才能确认成功 */
.application-panel.is-submitted{display:block;max-width:740px}.application-panel.is-submitted .letter-aside{display:none}

/* 校验文字紧贴对应字段, 不依赖浏览器语言, 手机同样可见 */
.apply-body .form-subtitle{margin-bottom:8px}
.form-reassurance{font-size:15px;line-height:1.8;color:#687b60;margin:0 0 22px}
.apply-body .field-error{display:block;color:#a43b35;font-size:15px;font-weight:400;line-height:1.6}
.apply-body .field-error[hidden]{display:none}
.apply-body [aria-invalid="true"]{border-color:#b9554a;background:#fff8f5}
.apply-body [aria-invalid="true"]:focus{outline-color:#b9554a26}

/* 联系卡使用独立艺术二维码, 四个模块的识别留白保留在图片内。 */
.assistant-card{display:grid;grid-template-columns:minmax(0,1fr) 300px;align-items:center;gap:16px;margin:16px 0 0;padding:18px 16px;border:1px solid #dce3d2;border-radius:12px;background:linear-gradient(140deg,#f1f4e9,#f9faf3);text-align:left}
.assistant-eyebrow{font-size:12px;font-weight:600;letter-spacing:2px;color:#798c6d}
.assistant-copy h3{margin:8px 0 14px;font-family:"SimSun",serif;font-size:27px;font-weight:400;line-height:1.45;color:#35553e}
.assistant-copy h3 span{display:block}
.assistant-identity{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:600;color:#36513c}
.assistant-identity img{display:block;flex-shrink:0}
.assistant-copy p{font-size:15px;line-height:1.8;color:#74816c;margin:10px 0 8px}
.assistant-original{display:inline-flex;gap:8px;align-items:center;font-size:14px;color:#506b46;padding:4px 0;border-bottom:1px solid #b9c6a8}
.assistant-original:hover{color:#294c36;border-bottom-color:#5c7a4e}
.assistant-original:focus-visible{outline:2px solid #728c62;outline-offset:5px}
.assistant-code{margin:0;padding:0 0 10px;background:#fffdf8;border:1px solid #e5e8df;border-radius:12px;overflow:hidden;box-shadow:0 8px 25px #30412a0d;min-width:0}
.assistant-artwork{position:relative;aspect-ratio:2/3}
.assistant-illustration{display:block;width:100%;height:auto;pointer-events:none}
.assistant-artwork .assistant-qr-window{position:absolute;width:70%;left:15%;top:43%;border-radius:3px}
.assistant-qr-window{aspect-ratio:1;overflow:hidden;background:#fffef9}
.assistant-qr-window img{display:block;width:100%;height:auto;-webkit-touch-callout:default}
.assistant-code figcaption{text-align:center;font-size:13px;line-height:1.7;color:#718169;padding:7px 6px 0}
.qr-mobile-hint{display:none}
.application-panel.is-submitted{margin-top:12px;margin-bottom:28px}
.application-panel.is-submitted .letter-form-card{padding:26px 28px}
#survey-success{padding:4px 0 0}
#survey-success .received-stamp{width:54px;height:54px;font-size:26px;margin-bottom:14px;outline-offset:-5px}
#survey-success h2{font-size:35px;margin:12px 0;line-height:1.4}
#survey-success>p:not(.letter-eyebrow){margin:10px 0;line-height:1.8}
#survey-success .success-note{padding:11px 12px;margin:16px 0}
#survey-success .letter-end{font-size:19px;margin-top:18px}
@media(max-width:720px){
 .application-panel.is-submitted{margin-top:6px;margin-bottom:18px;padding:0 14px}
 .application-panel.is-submitted .letter-form-card{padding:22px 16px}
 .assistant-card{grid-template-columns:1fr;gap:14px;padding:16px 12px;text-align:center;margin-top:14px}
 .assistant-copy h3{font-size:24px;margin:6px 0 10px}
 .assistant-copy h3 span{display:inline-block}
 .assistant-identity{justify-content:center}
 .assistant-copy p{margin:8px 0 4px}
 .assistant-code{width:min(340px,100%);justify-self:center}
 .qr-desktop-hint{display:none}.qr-mobile-hint{display:inline}
 #survey-success h2{font-size:31px;margin:10px 0}
 #survey-success .success-note{margin:12px 0}
}