/* Windy随风英语 · 全站样式（孟菲斯几何 Memphis · Playful Geometric） */
:root{
  --cream:#FFFDF5; --char:#1E293B; --char2:#475569;
  --violet:#8B5CF6; --pink:#F472B6; --amber:#FBBF24; --emerald:#34D399;
  --white:#fff; --slate-300:#CBD5E1; --slate-200:#E2E8F0;
  --border:2px solid var(--char);
  --shadow:4px 4px 0 0 var(--char);
  --shadow-lg:8px 8px 0 0 var(--char);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Satoshi','PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:500;color:var(--char);background:var(--cream);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{font-family:'Cabinet Grotesk','PingFang SC',sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.08}
a{color:var(--char)}

/* 几何底纹：圆点 / 斜线 */
.dots{background-image:radial-gradient(rgba(30,41,59,.14) 1.5px,transparent 1.6px);background-size:26px 26px}
.stripes{background-image:repeating-linear-gradient(45deg,var(--char) 0,var(--char) 8px,transparent 8px,transparent 18px)}
.zigzag{background:
  repeating-linear-gradient(135deg,var(--char) 0 2px,transparent 2px 14px),
  repeating-linear-gradient(45deg,var(--char) 0 2px,transparent 2px 14px);
  background-size:20px 20px}

/* ---------- 按钮（糖果全圆 + 硬阴影） ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  font-family:'Satoshi',sans-serif;font-weight:700;font-size:1.05rem;
  padding:1rem 1.9rem;border:var(--border);border-radius:999px;
  text-decoration:none;cursor:pointer;transition:transform .18s cubic-bezier(.175,.885,.32,1.275),box-shadow .18s;
}
.btn:hover{transform:translate(4px,4px)}
.btn-violet{background:var(--violet);color:#fff;box-shadow:var(--shadow-lg)}
.btn-violet:hover{box-shadow:4px 4px 0 0 var(--char)}
.btn-white{background:#fff;color:var(--char);box-shadow:var(--shadow)}
.btn-white:hover{box-shadow:0 0 0 0 var(--char)}
.btn-amber{background:var(--amber);color:var(--char);box-shadow:var(--shadow)}
.btn-amber:hover{box-shadow:0 0 0 0 var(--char)}
.btn-sm{padding:.55rem 1.2rem;font-size:.92rem}

/* ---------- 导航 ---------- */
header{
  position:fixed;inset:0 0 auto 0;height:76px;z-index:50;
  background:var(--cream);border-bottom:var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 2.2rem;
}
.logo{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--char);font-family:'Cabinet Grotesk';font-weight:800;font-size:1.3rem;letter-spacing:-.01em}
.logo .mark{width:42px;height:42px;background:var(--char);display:grid;place-items:center;box-shadow:3px 3px 0 0 rgba(30,41,59,.3);border-radius:12px}
.logo .mark svg{width:26px;height:26px}
.logo .mark img{width:42px;height:42px;object-fit:cover;display:block;border-radius:12px}
nav{display:flex;gap:1.7rem;align-items:center}
nav a{color:var(--char);text-decoration:none;font-weight:700;font-size:1rem;position:relative;padding:.2rem 0}
nav a::after{content:'';position:absolute;left:0;bottom:-4px;width:100%;height:4px;background:var(--char);border-radius:999px;transform:scaleX(0);transform-origin:left;transition:transform .2s}
nav a:hover::after,nav a.on::after{transform:scaleX(1)}
.header-slogan{font-weight:700;font-size:.9rem;letter-spacing:.02em;color:var(--char2);white-space:nowrap}

main{display:block}
.section{padding:5.5rem 2.2rem}

/* ---------- 首页 Hero ---------- */
.hero{background-color:var(--cream);border-bottom:var(--border);min-height:100vh;padding:calc(5rem + 76px) 2.2rem 4.5rem;display:flex;align-items:center}
.hero .wrap{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;width:100%}
.badge{display:inline-flex;align-items:center;gap:.5rem;background:#fff;border:var(--border);border-radius:999px;padding:.55rem 1.2rem;font-size:.95rem;font-weight:700;box-shadow:3px 3px 0 0 var(--char)}
.badge .dot{width:10px;height:10px;border-radius:50%;background:var(--pink)}
.hero h1{font-size:clamp(3.1rem,7.2vw,6rem);margin:1.5rem 0 1.3rem}
.hero h1 .en{font-family:'Cabinet Grotesk';text-transform:uppercase}
.hero h1 .nowrap{display:inline-block;white-space:nowrap}
.stroke{color:transparent;-webkit-text-stroke:2px var(--char)}
.hi-violet{color:var(--violet)}
.hero p.lead{font-size:1.27rem;max-width:36rem;line-height:1.8;color:var(--char2)}
.hero .ctas{display:flex;gap:1.2rem;margin-top:2.2rem;flex-wrap:wrap}
.hero .ctas .btn{font-size:1.12rem;padding:1.05rem 2rem}
.hero .meta{margin-top:2rem;display:flex;gap:2rem;flex-wrap:wrap}
.hero .meta div{font-size:1.08rem;font-weight:700}
.hero .meta small{display:block;color:var(--char2);font-weight:500;margin-top:.25rem;font-size:.95rem}

/* Hero 演示卡片 */
.mock{background:var(--white);border:var(--border);border-radius:1.4rem;box-shadow:var(--shadow-lg);padding:1rem;transition:transform .28s cubic-bezier(.34,1.56,.64,1),box-shadow .28s cubic-bezier(.34,1.56,.64,1)}
.mock:hover{transform:translateY(-8px);box-shadow:12px 12px 0 0 var(--char)}
.mock .bar{display:flex;gap:6px;margin-bottom:.8rem}
.mock .bar i{width:12px;height:12px;border:2px solid var(--char);border-radius:50%}
.mock .bar i:nth-child(1){background:var(--pink)}
.mock .bar i:nth-child(2){background:var(--amber)}
.mock .bar i:nth-child(3){background:var(--emerald)}
.mock .body .title{font-family:'Cabinet Grotesk';font-weight:800;font-size:1.18rem;display:flex;align-items:center;gap:.6rem;margin-bottom:.6rem}
.mock .body .title .chip{font-size:.72rem;font-weight:700;background:var(--violet);color:#fff;padding:.15rem .6rem;border-radius:999px;border:2px solid var(--char)}
.mock canvas{width:100%;display:block;border:var(--border);border-radius:.9rem;background:var(--cream)}
.mock .mzones{display:flex;justify-content:space-between;gap:.4rem;margin-top:.7rem;flex-wrap:wrap}
.mock .mzones span{display:inline-flex;align-items:center;gap:.3rem;font-size:.72rem;font-weight:700;color:#475569}
.mock .mzones i{width:10px;height:10px;border-radius:3px;border:1.5px solid #1E293B}
.mock .leg{display:flex;justify-content:space-between;font-size:.9rem;font-weight:700;margin-top:.6rem;color:var(--char2)}
.mock .leg b{color:var(--char)}

/* ---------- 滚动字幕 ---------- */
.marquee{background:var(--char);border-bottom:var(--border);overflow:hidden;padding:.8rem 0}
.mq{display:flex;gap:2.4rem;white-space:nowrap;animation:mq 30s linear infinite;width:max-content}
.mq span{font-family:'Cabinet Grotesk';font-weight:800;font-size:1.05rem;color:var(--cream)}
.mq em{font-style:normal;color:var(--amber);margin-left:.2rem}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- 章节 ---------- */
.wrap{max-width:1200px;margin:0 auto;width:100%}
.sec-head{margin-bottom:3rem;max-width:44rem}
.sec-head .eyebrow{display:inline-block;font-weight:700;font-size:.92rem;letter-spacing:.12em;text-transform:uppercase;color:var(--violet);margin-bottom:.6rem}
.sec-head h2{font-size:clamp(2.2rem,5vw,3.5rem)}
.sec-head p{color:var(--char2);line-height:1.7;margin-top:.8rem;font-size:1.1rem}

/* 问题 vs 解法 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1.8rem}
.card{border:var(--border);border-radius:1.2rem;padding:1.8rem;box-shadow:var(--shadow)}
.card h3{font-size:1.45rem;margin-bottom:1.1rem}
.card ul{list-style:none;display:grid;gap:.9rem}
.card li{font-size:1.08rem;line-height:1.55;color:var(--char2)}
.card li b{color:var(--char);font-weight:700}
.card.bad{background:#fff;border-top:10px solid var(--pink)}
.card.good{background:var(--violet);border-top:10px solid var(--char);box-shadow:var(--shadow-lg)}
.card.good h3,.card.good li,.card.good li b{color:#fff}
.card.good li b{background:rgba(255,255,255,.25);padding:.05rem .35rem;border-radius:.35rem}

/* 特色 grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.fcard{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.6rem;box-shadow:var(--shadow);transition:transform .18s cubic-bezier(.175,.885,.32,1.275)}
.fcard:hover{transform:translate(-3px,-3px)}
.fcard .ico{width:52px;height:52px;border:var(--border);border-radius:16px;display:grid;place-items:center;margin-bottom:1rem;background:var(--amber)}
.fcard .ico svg{width:28px;height:28px;stroke:var(--char)}
.fcard:nth-child(2) .ico{background:var(--pink)}
.fcard:nth-child(3) .ico{background:var(--violet)}
.fcard:nth-child(4) .ico{background:var(--emerald)}
.fcard:nth-child(5) .ico{background:var(--amber)}
.fcard:nth-child(6) .ico{background:var(--pink)}
.fcard h3{font-size:1.3rem;margin-bottom:.55rem}
.fcard p{font-size:1.04rem;color:var(--char2);line-height:1.7}

/* 适合谁 bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.bcard{border:var(--border);border-radius:1.2rem;padding:1.8rem;box-shadow:var(--shadow)}
.bcard .pill{display:inline-block;font-weight:700;font-size:.8rem;border:var(--border);border-radius:999px;padding:.2rem .8rem;margin-bottom:1rem}
.bcard h3{font-size:1.35rem;margin-bottom:.55rem}
.bcard p{font-size:1.05rem;line-height:1.7;color:var(--char2)}
.b-violet{background:var(--violet)}
.b-violet h3,.b-violet p{color:#fff}
.b-violet .pill{background:var(--cream);color:var(--char)}
.b-amber{background:var(--amber)}
.b-amber .pill{background:var(--char);color:var(--cream)}
.b-pink{background:var(--pink)}
.b-pink h3,.b-pink p{color:#fff}
.b-pink .pill{background:var(--char);color:var(--cream)}

/* 真实反馈 */
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.tcard{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.7rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:1rem}
.tcard .stars{color:var(--amber);letter-spacing:.15em}
.tcard blockquote{font-size:1.08rem;line-height:1.75}
.tcard cite{font-style:normal;font-weight:700;font-size:1rem;margin-top:auto;display:block}
.tcard cite small{display:block;font-weight:500;color:var(--char2);margin-top:.2rem}

/* 我的作品 */
.wgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;max-width:54rem}
.wcard{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.6rem;box-shadow:var(--shadow);text-decoration:none;transition:transform .18s cubic-bezier(.175,.885,.32,1.275)}
.wcard:hover{transform:translate(-3px,-3px)}
.wcard .wic{width:64px;height:64px;border:var(--border);border-radius:16px;display:grid;place-items:center;margin-bottom:1rem;font-family:'Cabinet Grotesk';font-weight:800;font-size:1.6rem}
.wcard h3{font-size:1.2rem;margin-bottom:.4rem}
.wcard p{font-size:.95rem;color:var(--char2);line-height:1.65;margin-bottom:.8rem}
.wcard .go{font-weight:700;font-size:.95rem;display:inline-flex;align-items:center;gap:.3rem}
.wcard .go b{transition:transform .15s}
.wcard:hover .go b{transform:translateX(4px)}

/* CTA */
.cta{background:var(--amber);border-top:var(--border);text-align:center;padding:5rem 2rem}
.cta h2{font-size:clamp(1.9rem,4.4vw,3rem);margin-bottom:.8rem}
.cta p{font-size:1.15rem;max-width:38rem;margin:0 auto 1.8rem;color:var(--char2);line-height:1.7}

/* ---------- Footer ---------- */
footer{background:var(--char);color:var(--cream)}
.foot{max-width:1200px;margin:0 auto;padding:3.5rem 2rem 2rem;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.5rem}
.foot .brand .logo{color:var(--cream);margin-bottom:.8rem}
.foot .brand .logo .mark{background:var(--cream);color:var(--char)}
.foot .brand p{font-size:.95rem;color:rgba(255,253,245,.75);line-height:1.7}
.foot h4{font-family:'Cabinet Grotesk';font-weight:800;font-size:1.05rem;margin-bottom:1rem;color:var(--amber)}
.foot ul{list-style:none;display:grid;gap:.6rem}
.foot a{color:rgba(255,253,245,.85);text-decoration:none;font-size:.95rem}
.foot a:hover{color:var(--amber)}
.foot .social{display:flex;gap:.8rem}
.foot .social a{width:42px;height:42px;border:2px solid rgba(255,253,245,.5);border-radius:50%;display:grid;place-items:center;font-weight:700}
.foot .social a:hover{background:var(--amber);color:var(--char);border-color:var(--amber)}
.foot-bottom{border-top:2px solid rgba(255,253,245,.2);padding:1.3rem 2rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;font-size:.9rem;color:rgba(255,253,245,.7);max-width:1200px;margin:0 auto}

/* ---------- 子页：工具页头 ---------- */
.tools-hero{border-bottom:var(--border);padding:calc(4.5rem + 76px) 2.2rem 3rem;background:var(--cream)}
.tools-hero .back-link{display:inline-block;font-weight:700;font-size:.95rem;text-decoration:none;margin-bottom:1.6rem;padding:.4rem 1rem;border:var(--border);border-radius:999px;background:#fff;box-shadow:3px 3px 0 0 var(--char)}
.tools-hero .back-link:hover{transform:translate(3px,3px);box-shadow:0 0 0 0 var(--char)}
.tools-hero h1{font-size:clamp(2.2rem,5vw,3.4rem);margin-bottom:.6rem}
.tools-hero p{font-size:1.05rem;color:var(--char2);max-width:40rem;line-height:1.7}

/* 搜索框 */
.searchbox{position:relative;max-width:34rem;margin-top:1.8rem}
.searchbox input{width:100%;padding:.95rem 1.2rem .95rem 3rem;font-size:1rem;font-family:'Satoshi';border:var(--border);border-radius:999px;background:#fff;box-shadow:var(--shadow);outline:none}
.searchbox .mag{position:absolute;left:1.1rem;top:50%;transform:translateY(-50%);width:20px;height:20px;stroke:var(--char)}
.results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;border:var(--border);border-radius:1rem;box-shadow:var(--shadow-lg);z-index:20;display:none;overflow:hidden}
.results.on{display:block}
.results a{display:flex;justify-content:space-between;align-items:center;gap:.8rem;padding:.85rem 1.2rem;text-decoration:none;border-bottom:2px solid var(--slate-200)}
.results a:last-child{border-bottom:none}
.results a:hover{background:var(--cream)}
.results .r-name{font-weight:700}
.results .r-desc{font-size:.85rem;color:var(--char2)}
.results .r-go{font-weight:800;color:var(--violet)}
.results .empty{padding:1rem 1.2rem;color:var(--char2);font-size:.95rem}

/* 学段/主题卡片 */
.grade-grid{max-width:1200px;margin:2.4rem auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.gcard{display:block;border:var(--border);border-radius:1.2rem;padding:1.7rem;box-shadow:var(--shadow);text-decoration:none;transition:transform .18s cubic-bezier(.175,.885,.32,1.275)}
.gcard:hover{transform:translate(-3px,-3px)}
.gcard h2{font-size:1.5rem;margin-bottom:.5rem}
.gcard .note{font-size:.95rem;line-height:1.65;color:var(--char2);margin-bottom:1.2rem}
.gcard .cnt{font-weight:700;font-size:.95rem}
.gcard .cnt .pill{display:inline-grid;place-items:center;min-width:2rem;height:2rem;padding:0 .5rem;background:var(--amber);border:var(--border);border-radius:999px;font-family:'Cabinet Grotesk';font-weight:800}
.g-grammar{background:#fff}
.g-tools{background:var(--violet)}
.g-tools h2,.g-tools .note,.g-tools .cnt{color:#fff}
.g-games{background:var(--pink)}
.g-games h2,.g-games .note,.g-games .cnt{color:#fff}
.g-card{background:var(--amber)}

/* 工具卡片列表 */
.tlist{max-width:1200px;margin:0 auto;padding:3rem 2.2rem 5rem;display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.tcard-item{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.5rem;box-shadow:var(--shadow);text-decoration:none;transition:transform .18s cubic-bezier(.175,.885,.32,1.275)}
.tcard-item:hover{transform:translate(-3px,-3px)}
.tcard-item h3{font-size:1.15rem;margin-bottom:.4rem}
.tcard-item .tdesc{font-size:.92rem;color:var(--char2);line-height:1.6;margin-bottom:.9rem}
.tcard-item .ttag{display:inline-block;font-size:.75rem;font-weight:700;border:var(--border);border-radius:999px;padding:.15rem .6rem;background:var(--amber)}
.tcard-item .tgo{font-weight:800;color:var(--violet)}
.soon{opacity:.55;pointer-events:none}

/* ---------- 工具页通用 ---------- */
.tool-page main{padding-top:calc(2.2rem + 76px);padding-bottom:3rem}
.tool-top{max-width:1200px;margin:0 auto;padding:0 2.2rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.tool-top .back{display:inline-flex;align-items:center;gap:.4rem;font-weight:700;text-decoration:none;padding:.5rem 1.1rem;border:var(--border);border-radius:999px;background:#fff;box-shadow:3px 3px 0 0 var(--char)}
.tool-top .back:hover{transform:translate(3px,3px);box-shadow:0 0 0 0 var(--char)}
.tool-top h1{font-size:clamp(1.6rem,3.4vw,2.4rem)}
.tool-stage{max-width:1200px;margin:1.6rem auto 0;padding:0 2.2rem}
.tool-card{background:#fff;border:var(--border);border-radius:1.3rem;box-shadow:var(--shadow-lg);overflow:hidden}
.tool-card .stage-body{padding:1.4rem;display:grid;place-items:center;background:var(--cream)}
.tool-card .stage-body canvas{max-width:100%;height:auto;display:block;border:var(--border);border-radius:1rem;background:var(--cream)}
.tool-console{border-top:var(--border);padding:1.2rem 1.4rem;display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;background:#fff}
.tool-console .console-label{font-weight:700;font-size:.95rem;margin-right:.2rem}
.tool-card .output{padding:1.4rem;border-top:var(--border);background:#fff}
.tool-card .output .o-title{font-weight:800;font-size:1.1rem;margin-bottom:.8rem}
.tool-card .output .o-title small{font-weight:500;color:var(--char2);font-size:.9rem;margin-left:.5rem}

.tbtn{font-family:'Satoshi';font-weight:700;font-size:.95rem;padding:.6rem 1.3rem;border:var(--border);border-radius:999px;background:#fff;box-shadow:3px 3px 0 0 var(--char);cursor:pointer;transition:transform .15s,box-shadow .15s}
.tbtn:hover{transform:translate(2px,2px);box-shadow:1px 1px 0 0 var(--char)}
.tbtn:active{transform:translate(3px,3px);box-shadow:0 0 0 0 var(--char)}
.tbtn.primary{background:var(--violet);color:#fff}
.tbtn.amber{background:var(--amber)}
.tbtn.pink{background:var(--pink);color:#fff}
.tbtn.on{background:var(--char);color:var(--cream);box-shadow:0 0 0 0 var(--char);transform:translate(3px,3px)}

.hint{max-width:1200px;margin:1.2rem auto 0;padding:0 2.2rem;font-size:.92rem;color:var(--char2);line-height:1.6}

/* 时态时间轴 · 区带提示 */
.tense-tags{display:flex;gap:.5rem;flex-wrap:wrap}
.tense-tags .tag{font-size:.82rem;font-weight:700;border:var(--border);border-radius:999px;padding:.25rem .7rem;background:#fff;cursor:pointer;transition:transform .15s}
.tense-tags .tag:hover{transform:translateY(-2px)}
.tense-tags .tag.on{background:var(--char);color:var(--cream)}

.sent-big{font-family:'Cabinet Grotesk';font-size:clamp(1.4rem,3vw,2rem);font-weight:800;line-height:1.5}
.sent-big .v{text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:4px}
.sent-big .adv{color:var(--violet)}

/* 句子成分分析 */
.s-word{display:inline-block;border:var(--border);border-radius:.6rem;padding:.15rem .45rem;margin:.12rem .1rem;font-size:1.05rem;font-weight:700}
.s-word.S{background:var(--amber)}
.s-word.P{background:var(--emerald)}
.s-word.O{background:var(--pink);color:#fff}
.s-word.C{background:var(--violet);color:#fff}
.s-word.A{background:var(--slate-200)}
.s-word.U{background:#fff}
.s-legend{display:flex;gap:1rem;flex-wrap:wrap;font-size:.9rem;font-weight:700;margin-top:.8rem}
.s-legend i{display:inline-block;width:16px;height:16px;border:2px solid var(--char);border-radius:4px;margin-right:.35rem;vertical-align:-2px}
.s-legend .S{background:var(--amber)}
.s-legend .P{background:var(--emerald)}
.s-legend .O{background:var(--pink)}
.s-legend .C{background:var(--violet)}
.s-legend .A{background:var(--slate-200)}
.roles{margin-top:1.2rem;display:grid;gap:.6rem;font-size:.95rem;line-height:1.6}
.roles .role{display:flex;gap:.6rem;align-items:baseline}
.roles .role b{min-width:3.2rem;font-family:'Cabinet Grotesk'}

/* 默写生成 */
.dict-controls{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;width:100%}
.dict-controls select,.dict-controls textarea{font-family:'Satoshi';font-size:.95rem;border:var(--border);border-radius:1rem;padding:.6rem .9rem;background:#fff}
.dict-controls select{box-shadow:3px 3px 0 0 var(--char)}
.dict-out{font-size:1rem;line-height:2;white-space:pre-wrap}
.dict-out b{font-family:'Cabinet Grotesk'}

/* 占位 */
.ph-box{border:var(--border);border-radius:1.2rem;background:#fff;box-shadow:var(--shadow);padding:3rem 2rem;text-align:center;max-width:40rem;margin:2rem auto 0}
.ph-box .ph-ico{width:72px;height:72px;border:var(--border);border-radius:20px;display:grid;place-items:center;margin:0 auto 1.2rem;background:var(--amber);font-size:2rem}
.ph-box h2{font-size:1.5rem;margin-bottom:.6rem}
.ph-box p{color:var(--char2);line-height:1.7}

/* ---------- 移动端 ---------- */
/* —— 首页：三件套教具 —— */
.fcard .fgo{display:inline-flex;align-items:center;gap:.3rem;margin-top:.9rem;font-weight:800;color:var(--violet);text-decoration:none;font-size:.98rem}
.fcard .fgo b{transition:transform .15s}
.fcard:hover .fgo b{transform:translateX(4px)}

/* —— 首页：听说读写 2×2 —— */
.hgrid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.hcard{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.7rem;box-shadow:var(--shadow);display:grid;grid-template-columns:auto 1fr;gap:1.1rem}
.hcard .big{width:58px;height:58px;border:var(--border);border-radius:16px;display:grid;place-items:center;font-family:'Cabinet Grotesk';font-weight:800;font-size:1.8rem;background:var(--amber)}
.hcard h3{font-size:1.3rem;margin-bottom:.45rem}
.hcard p{font-size:1.02rem;color:var(--char2);line-height:1.75}
.hcard p b{color:var(--char)}
.hcard:nth-child(2) .big{background:var(--pink);color:#fff}
.hcard:nth-child(3) .big{background:var(--emerald)}
.hcard:nth-child(4) .big{background:var(--violet);color:#fff}

/* —— 首页：高考考点地图 —— */
.mapgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:start}
.mapcol{background:#fff;border:var(--border);border-radius:1.2rem;padding:1.4rem 1.5rem;box-shadow:var(--shadow)}
.mapcol h3{display:flex;align-items:center;gap:.55rem;font-size:1.15rem;margin-bottom:1rem}
.mapcol h3 .st{width:13px;height:13px;border-radius:999px;border:2px solid var(--char);background:#fff}
.mapcol.on h3 .st{background:var(--emerald)}
.mapcol.doing h3 .st{background:var(--amber)}
.mapcol.todo h3 .st{background:#fff}
.mnode{padding:.6rem .8rem;margin-bottom:.55rem;border:2px solid var(--char);border-radius:.8rem;font-weight:700;font-size:.98rem;background:var(--cream)}
.mnode:last-child{margin-bottom:0}
.mnode.off{opacity:.45}

@media (max-width:960px){
  .grid3,.bento,.tgrid,.grade-grid,.tlist{grid-template-columns:repeat(2,1fr)}
  .hero .wrap{grid-template-columns:1fr;gap:2.4rem}
  .hero{padding-top:calc(4.5rem + 76px)}
  .mock{transform:none}
  .split{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  header{padding:0 1rem;height:64px;gap:.5rem}
  .logo{font-size:1.05rem}
  .logo .mark{width:34px;height:34px}
  .logo .mark img{width:34px;height:34px}
  .logo .mark svg{width:20px;height:20px}
  nav{gap:.9rem}
  nav a{font-size:.88rem}
  .header-slogan{display:none}
  .section{padding:3.5rem 1rem}
  .hero .wrap,.tool-top,.tool-stage,.hint{padding-left:1rem;padding-right:1rem}
  .grid3,.bento,.tgrid,.grade-grid,.tlist,.wgrid,.hgrid,.mapgrid{grid-template-columns:1fr}
  .hcard{grid-template-columns:1fr}
  .cta{padding:3.5rem 1rem}
  .foot{grid-template-columns:1fr;padding:2.5rem 1rem 1.5rem}
  .foot-bottom{padding:1rem;flex-direction:column}
  .tools-hero{padding:calc(3.6rem + 64px) 1rem 2rem}
  .tool-page main{padding-top:calc(1.6rem + 64px)}
  .tool-card .stage-body{padding:.8rem}
  .tool-console{padding:.9rem}
  .hero .meta{gap:1.2rem}
  .mock .leg{font-size:.8rem}
}