/* Xinxiang license: a vertical operating-facts workbook. */
.xxl-main{--xxl-ink:#141a1f;--xxl-orange:#ff8a18;--xxl-paper:#f3f4f1;--xxl-line:#cbd0cd;background:var(--xxl-paper);color:var(--xxl-ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;overflow:clip}
.xxl-main *{box-sizing:border-box}.xxl-main a{color:inherit;text-decoration:none}.xxl-main p,.xxl-main h1,.xxl-main h2,.xxl-main h3,.xxl-main figure,.xxl-main ol,.xxl-main dl{margin:0}.xxl-main button,.xxl-main input{font:inherit}.xxl-main a:focus-visible,.xxl-main input:focus-visible{outline:3px solid #da5f00;outline-offset:5px}.xxl-wrap{width:min(1260px,calc(100% - 72px));margin:auto}.xxl-breadcrumb{display:flex;gap:12px;padding:28px 0;font-size:13px;color:#596267}.xxl-breadcrumb a:hover{text-decoration:underline}.xxl-heading{padding:38px 0 42px}.xxl-eyebrow{display:flex;justify-content:space-between;padding:16px 0;border-top:3px solid var(--xxl-ink);font-size:14px;font-weight:700;letter-spacing:.12em}.xxl-eyebrow span{font-size:12px;font-weight:400;letter-spacing:.1em}.xxl-heading h1{font-size:min(clamp(44px,5.8vw,80px), clamp(32px, calc(2.105263vw + 17.68421px), 48px));line-height:1.17;letter-spacing:-.045em;font-weight:800;margin:30px 0 32px}.xxl-heading h1 span{color:#b94b00}.xxl-opening{display:flex;align-items:end;justify-content:space-between;gap:48px}.xxl-opening p{font-size:17px;line-height:1.9;max-width:710px;color:#4f585d}.xxl-button{display:inline-flex;justify-content:space-between;align-items:center;gap:34px;background:var(--xxl-ink);color:#fff!important;padding:18px 24px;white-space:nowrap;font-size:14px}.xxl-button:hover{background:#303c45}.xxl-button span{color:var(--xxl-orange);font-size:24px}.xxl-panorama{position:relative;margin-bottom:78px}.xxl-main .ss-photo{position:relative;overflow:hidden;background:#dfe2df}.xxl-main .ss-photo img{display:block;width:100%;height:auto;object-fit:cover}.xxl-main .ss-photo figcaption{padding:9px 12px;background:#e8ebe7;font-size:11px;color:#5a6265;line-height:1.7}.xxl-panorama .ss-photo img{max-height:540px;object-fit:cover}.xxl-panorama-note{position:absolute;left:0;bottom:36px;display:flex;align-items:center;gap:22px;background:var(--xxl-ink);color:#fff;padding:18px 25px;font-size:14px}.xxl-panorama-note span{color:var(--xxl-orange);font-size:12px}.xxl-book{display:grid;grid-template-columns:minmax(0,1fr) 172px;gap:70px;align-items:start}.xxl-chapters{min-width:0}.xxl-chapter{padding:44px 0 62px;border-top:1px solid var(--xxl-ink);scroll-margin-top:112px}.xxl-chapter-title{display:flex;gap:26px;align-items:start;margin-bottom:26px}.xxl-number{font-family:Arial,sans-serif;font-size:72px;line-height:1;color:#c65300;font-weight:300;letter-spacing:-.07em;min-width:90px}.xxl-kicker{font-size:12px;letter-spacing:.16em;color:#697177;margin-bottom:12px!important}.xxl-chapter h2,.xxl-prep h2{font-size:min(clamp(25px,3vw,37px), clamp(26px, calc(0.789474vw + 20.631579px), 32px));line-height:1.45;letter-spacing:-.035em;font-weight:700}.xxl-lead{font-size:16px;line-height:2;color:#535e64;margin:0 0 28px!important;max-width:790px}.xxl-facts{border-top:1px solid var(--xxl-line)}.xxl-facts>div{display:grid;grid-template-columns:120px 1fr;gap:25px;padding:23px 0;border-bottom:1px solid var(--xxl-line)}.xxl-facts dt{font-weight:700;font-size:15px}.xxl-facts dd{margin:0;color:#535e64;font-size:15px;line-height:1.9}.xxl-margin-note{border-left:3px solid var(--xxl-orange);padding-left:17px;font-size:13px;line-height:1.9;color:#647076;margin:24px 0 0!important}.xxl-paired{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin:28px 0 0}.xxl-paired h3{font-size:18px;margin-bottom:12px}.xxl-paired p{font-size:15px;line-height:1.95;color:#535e64}.xxl-index{position:sticky;top:112px;border-top:3px solid var(--xxl-ink);padding-top:19px}.xxl-index>p{font-size:12px;letter-spacing:.18em;color:#697177;margin-bottom:25px}.xxl-index a{display:flex;gap:13px;padding:13px 0 13px 12px;border-left:2px solid transparent;font-size:13px;color:#5c666d;transition:background .2s,color .2s}.xxl-index a b{font-size:11px;font-weight:400}.xxl-index a.is-active{border-color:var(--xxl-orange);background:#e6e9e4;color:var(--xxl-ink);font-weight:700}.xxl-index-foot{display:block;border-top:1px solid var(--xxl-line);margin-top:30px;padding-top:16px;font-size:12px;color:#7a8184;line-height:1.9}.xxl-promo{margin:12px 0 62px}.xxl-promo a,.xxl-promo picture,.xxl-promo img{display:block;width:100%}.xxl-promo img{height:auto}.xxl-record-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:start}.xxl-record-grid .ss-photo img{aspect-ratio:1/1.13;object-fit:cover}.xxl-steps{padding:0;counter-reset:step;list-style:none}.xxl-steps li{position:relative;padding:0 0 22px 35px;border-bottom:1px solid var(--xxl-line);margin-bottom:23px;counter-increment:step}.xxl-steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:4px;color:#b94b00;font:12px Arial,sans-serif}.xxl-steps li:last-child{margin-bottom:0}.xxl-steps h3{font-size:16px;margin-bottom:10px}.xxl-steps p{font-size:14px;line-height:1.95;color:#535e64}.xxl-handover{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-top:28px}.xxl-handover>div{border-top:2px solid var(--xxl-ink);padding-top:20px}.xxl-handover span{font-weight:700;font-size:15px}.xxl-handover p{font-size:14px;color:#535e64;line-height:1.95;margin-top:14px}.xxl-prep{padding:34px;background:var(--xxl-ink);color:#fff;margin-bottom:60px;scroll-margin-top:112px;border-top:5px solid var(--xxl-orange)}.xxl-prep-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.xxl-prep .xxl-kicker{color:#c5cbc9}.xxl-prep h2{font-size:min(28px, clamp(26px, calc(0.789474vw + 20.631579px), 32px))}.xxl-counter{white-space:nowrap;text-align:right}.xxl-counter strong{display:block;font:64px/1 Arial,sans-serif;color:var(--xxl-orange);margin-bottom:6px}.xxl-counter span{font-size:12px;color:#bdc6cb}.xxl-checklist{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.xxl-checklist label{display:flex;align-items:start;gap:11px;padding:17px 0;border-top:1px solid #455057;font-size:14px;line-height:1.75;cursor:pointer}.xxl-checklist input{flex:none;width:18px;height:18px;margin:3px 0 0;accent-color:var(--xxl-orange)}.xxl-prep-note{font-size:12px;line-height:1.95;color:#bbc4c9;border-top:1px solid #455057;padding-top:20px;margin-top:8px!important}.xxl-text-link{display:inline-block;margin-top:24px;padding-bottom:8px;border-bottom:1px solid var(--xxl-orange);font-size:14px;line-height:1.8}.xxl-text-link span{color:var(--xxl-orange)}.xxl-reading{padding:40px 0 65px;border-top:3px solid var(--xxl-ink)}.xxl-reading-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px}.xxl-reading h2{font-size:clamp(26px, calc(0.789474vw + 20.631579px), 32px);letter-spacing:-.03em}.xxl-reading-more{font-size:13px;padding-bottom:6px;border-bottom:1px solid #929c9f;white-space:nowrap}.xxl-article-list{display:grid;grid-template-columns:1fr 1fr;column-gap:45px}.xxl-article a{position:relative;display:block;padding:22px 30px 22px 0;border-top:1px solid var(--xxl-line);min-height:114px}.xxl-article a>span{font-size:11px;color:#b24b05;letter-spacing:.1em}.xxl-article h3{font-size:15px;line-height:1.8;margin-top:7px;font-weight:500;overflow-wrap:anywhere}.xxl-article i{position:absolute;right:0;top:48px;font-style:normal;color:#8c9598}.xxl-article a:hover h3{color:#a94700;text-decoration:underline}.ss-skip{position:fixed;left:16px;top:-80px;background:#fff;color:#111;padding:12px;z-index:9999}.ss-skip:focus{top:12px}.ss-top{position:fixed;right:20px;bottom:24px;width:44px;height:44px;border:1px solid #636b70;background:#141a1f;color:#ff8a18;font-size:23px;z-index:60;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s}.ss-top.is-visible{opacity:1;pointer-events:auto}
@media(max-width:1000px){.xxl-book{grid-template-columns:minmax(0,1fr) 142px;gap:35px}.xxl-wrap{width:calc(100% - 48px)}.xxl-record-grid{grid-template-columns:1fr}.xxl-record-grid .ss-photo img{aspect-ratio:16/9}.xxl-handover{gap:17px}.xxl-handover p{font-size:13px}.xxl-number{min-width:70px;font-size:62px}.xxl-opening{gap:28px}.xxl-opening p{font-size:15px}.xxl-chapter-title{gap:16px}}
@media(max-width:760px){.xxl-book{display:flex;flex-direction:column;gap:0}.xxl-index{position:static;order:-1;display:flex;flex-wrap:wrap;gap:0 5px;width:100%;padding:13px 0;margin:0 0 24px;border-top:2px solid var(--xxl-ink);border-bottom:1px solid var(--xxl-line)}.xxl-index>p,.xxl-index-foot{display:none}.xxl-index a{font-size:12px;padding:10px 9px;gap:6px}.xxl-chapters{width:100%}.xxl-panorama{margin-bottom:30px}.xxl-panorama-note{position:static;font-size:12px;gap:13px;padding:13px 15px}.xxl-opening{align-items:start;flex-direction:column;gap:22px}.xxl-heading{padding:20px 0 28px}.xxl-heading h1{font-size:clamp(32px, calc(2.105263vw + 17.68421px), 48px)}.xxl-button{padding:14px 22px}.xxl-record-grid{grid-template-columns:1fr 1fr;gap:25px}.xxl-record-grid .ss-photo img{aspect-ratio:1/1.2}.xxl-handover{gap:22px}}
@media(max-width:640px){.xxl-wrap{width:calc(100% - 32px)}.xxl-breadcrumb{padding:22px 0;font-size:12px}.xxl-eyebrow{font-size:12px;letter-spacing:.06em}.xxl-eyebrow span{font-size:10px;letter-spacing:0}.xxl-heading h1{font-size:min(clamp(36px,9.5vw,52px), clamp(32px, calc(2.105263vw + 17.68421px), 48px));margin:25px 0}.xxl-opening p{font-size:14px;line-height:1.95}.xxl-panorama .ss-photo img{aspect-ratio:4/3;max-height:none}.xxl-main .ss-photo figcaption{font-size:10px;padding:8px}.xxl-panorama-note{flex-direction:column;align-items:start;gap:6px}.xxl-chapter{padding:31px 0 42px}.xxl-chapter-title{gap:16px;margin-bottom:22px}.xxl-number{font-size:50px;min-width:56px}.xxl-kicker{font-size:11px;margin-bottom:8px!important}.xxl-chapter h2{font-size:25px;line-height:1.45}.xxl-lead{font-size:14px;line-height:1.95;margin-bottom:22px!important}.xxl-facts>div{grid-template-columns:85px 1fr;gap:15px;padding:20px 0}.xxl-facts dt,.xxl-facts dd{font-size:13px}.xxl-margin-note{font-size:12px;margin-top:20px!important}.xxl-paired{gap:22px;margin-top:23px}.xxl-paired h3{font-size:16px}.xxl-paired p{font-size:13px}.xxl-record-grid{grid-template-columns:1fr;gap:24px}.xxl-record-grid .ss-photo img{aspect-ratio:3/2}.xxl-steps li{padding-bottom:18px;margin-bottom:18px}.xxl-handover{grid-template-columns:1fr;gap:23px}.xxl-handover>div{padding-top:15px}.xxl-handover p{margin-top:10px;font-size:13px}.xxl-prep{padding:25px 20px;margin-bottom:40px}.xxl-prep-heading{align-items:start;gap:16px}.xxl-prep h2{font-size:22px}.xxl-counter strong{font-size:48px}.xxl-counter span{font-size:10px}.xxl-checklist{grid-template-columns:1fr}.xxl-checklist label{font-size:13px;padding:14px 0}.xxl-prep-note{font-size:11px}.xxl-text-link{font-size:13px}.xxl-reading{padding:30px 0 38px}.xxl-reading-heading{align-items:start;flex-direction:column;gap:20px}.xxl-reading h2{font-size:26px}.xxl-article-list{grid-template-columns:1fr}.xxl-article a{min-height:0;padding:19px 26px 19px 0}.xxl-article h3{font-size:14px}.xxl-promo{margin:0 0 40px}.ss-top{right:12px;bottom:16px;width:38px;height:38px}}
@media(max-width:360px){.xxl-wrap{width:calc(100% - 24px)}.xxl-eyebrow{flex-direction:column;gap:10px}.xxl-heading h1{font-size:32px}.xxl-chapter h2{font-size:22px}.xxl-number{font-size:44px;min-width:48px}.xxl-chapter-title{gap:11px}.xxl-prep{padding:23px 16px}.xxl-prep-heading{flex-direction:column}.xxl-counter{text-align:left;display:flex;gap:12px;align-items:baseline}.xxl-counter strong{font-size:36px}.xxl-facts>div{grid-template-columns:72px 1fr;gap:12px}.xxl-index a{padding:9px 6px}.xxl-paired{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.xxl-main *,.ss-top{scroll-behavior:auto!important;transition:none!important;animation:none!important}}